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Home My WebLink AboutZON2015-00003 JEFFERSON COUNTY DEPARTMENT OF COMMUNITY DEVELOPMENT UNIFIED DEVELOPMENT CODE TYPE I LAND USE PERMIT APPLICANT: RICHARD SMITH PO BOX 65458 PORT LUDLOW WA 98365-8746 DATE ISSUED:January 23, 2015 DATE EXPIRES: January 23,2016 MLA NUMBER: MLA15-00004 PROJECT PLANNER: David Wayne Johnson PROJECT DESCRIPTION: STAND ALONE STORMWATER PERMIT PROJECT LOCATION: Parcel Number 961 400 004 in Section 8, Township 28, Range 01E located at Lot 4 of Todd Road, Port Ludlow, WA 98368 CONDITIONS: 1.) The applicant shall comply with the approved Engineered Stormwater Plan -Drainage and Erosion Control Plan prepared by Quadra Engineering dated January 2015. FINDINGS: 1.) The Administrator finds that this application complies with applicable provisions of the Unified Development Code, all other applicable ordinances and regulations, and is consistent with the Jefferson County Comprehensive Plan and Land Use map. 2.) Jefferson County determined that this proposal is categorically exempt from review under the State Environmental Policy Act(SEPA) pursuant to WAC 197-11-800(1)(b)(v). 3.) The site plan as submitted with the Stormwater Permit application on January 13, 2015 has been reviewed for consistency under the UDC, and has been approved by Jefferson County Department of Community Development. Any modifications, changes, and/or additions to the stamped, approved site plan dated January 23, 2015 shall be resubmitted for review and approval by Jefferson County Department of Community Development. 4.) This approval is for clearing of a parcel for Pasture and Associated Residential Development in Excess of 300k Square Feet only. Any future permits on this site are subject to review for consistency with applicable codes and ordinances and does not preclude review and conditions which may be placed on future permits. 5.) NOTICE: This permit does not excuse the proponent from complying with other local, state, and federal ordinances, regulations, or statutes applicable to the proposed development, but consistent with RCW 90.58. Development pursuant to this permit shall be undertaken subject to the applicable policies and performance standards of the Jefferson County Shoreline Management Master Program and the Jefferson County Unified Development Code. If during excavation or development of the site an area of potential archaeological significance is uncovered, all activity in the immediate area shall be halted, and the Administrator shall be notified at once. The Federal Endangered Species Act rules to protect threatened Chinook and Summer-run Chum salmon became effective on January 8, 2001. Bull trout have been listed as threatened since early 2000. Under the ESA, any person may bring lawsuit against any individual or agency that"takes" listed species (defined as causing harm, harassing, or damaging habitat for the listed species). In addition, the National Marine Fisheries Service can levy penalties. Some areas in Jefferson County are included as"critical habitat"for a listed species. Development of property along any marine shoreline, freshwater shoreline, or floodplains could harm habitat if protective measures are not taken. To minimize the potential to damage habitat, all property owners developing adjacent to marine shoreline, freshwater shoreline, or floodplains are advised to do the following: -All development activities should avoid unstable slopes, wetlands, and forested areas near surface waters - Remove minimal vegetation for site development, especially large trees -Allow trees that have fallen into surface waters to remain there - Infiltrate stormwater from buildings and driveways onsite through drywells rather than discharging directly into surface waters or roadside ditches The Federal Bald and Golden Eagle Protection Act requires landowners within 660 feet(1/8th of a mile) of an eagle nest to consult with the US Fish and Wildlife Service. This Eagle Act prohibits anyone from "taking" bald eagles. This federal law defines the term "take"and describes the possible legal consequences when a"take" occurs. Among other actions, "take" includes a disturbance of bald eagles or their habitat. Under federal law a permit may still be required for activities that impact bald eagles or their habitat. Contact the US Fish and Wildlife Service (http://www.fws.gov/pacific/eagle/)to learn more about how this law affects your project. Any individual, group, or agency can bring suit for a listed species"taking", even if you are in compliance with Jefferson County development codes. The risk of a lawsuit against you can be reduced by consulting with a professional fisheries habitat biologist, and following the recommendations for site development provided by the biologist. For more information, contact the National Marine Fisheries Service in Seattle, or the U.S. Fish and Wildlife Service. 6.) A Class IV General Forest Practice Permit was issued for the subject parcel on October 24, 2002. APPEALS: Pursuant to RCW 36.70C,the applicant or any aggrieved party may appeal this final decision to Jefferson County Superior Court within twenty-one(21)calendar days of the date of issuance of this land use decision. For more information related to judical appeals see JCC 18.40.340. ,7„, //2-3/7-0/5-- UDC Administrator MLA15-00004 \\tidemark\data\forms\F_MLT_IssuePermit_U.rpt 1/23/2015 Page 2 of 2 D:\_Jobs_D\ OE(d)\Smith\DWG\Smith Residence(3b).dwg,05 SITE,1/3/2015 11:57:06 PM r • cn N R m Hm m n _..._.-.- o `m- N � Zn W �y � m lo °m �� z°a � ° o cs �.. iO C NIn GT s k ' V 47 bIg� vIv IL� � Ic'7 v$= n NN j : I ^i F. iI . .�,Z °k k ... � ]' 'en{' . H " P TF y� . ,N I. -__.. . . .. ( ,,,,§,,,. O -- 121.2 �� s 4� --� \ f - . • 147.1 . �� ?Or /°� ( .\ { vo I r N $,: .0 \� x i`• i z 0 \\\ ''' • - �6 ' n n 1X '\ --I l t - ' 73 Z r : N ✓, 82 •48 ``b ` z \ d R n , _. . , i k -< n, on -1zo.. ,, �� ' � J rn `\ �a 11 • if, z 1 _ 160.8 g . �. I' c 420 — 80 H l n r �. OD . 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En_n c, D5 0,-n ;12.. :•13 Dr DO•,_ -r1 5q co DA rn En 1, in5-,,, CD ' 20 r-rn--1 -- (1) "" rn CD--'-''- 70 ----- rn Go zd 20 TO c>,rn (/' c) -0 co • F5 EC 00 CO ■52 2=- 1- ....,=) c•-•',Y) ,..:':. 5--:7 V F21-1 F (j==• P-' "t- Cr) CD 7'--I 1-7', R L.:: 21 c: rn-i 0 ,, rn ,,s, ,s7. rn -'"„. -- r-c) __I .2 rn DO 2 c., ,,, c.,___, _.‘,...,,_ <-Target-> MBLK *** <Name> # <-factor-> <Name> # Tbl# *** Pre-Settlement*** PERLND 1 5.095 COPY 501 12 PERLND 1 5.095 COPY 501 13 PERLND 1 5.095 COPY 501 14 PERLND 4 1.373 COPY 501 12 PERLND 4 1.373 COPY 501 13 PERLND 4 1.373 COPY 501 14 PERLND 5 1.185 COPY 501 12 PERLND 5 1.185 COPY 501 13 PERLND 5 1.185 COPY 501 14 PERLND 19 1.888 COPY 501 12 PERLND 19 1.888 COPY 501 13 PERLND 19 1.888 COPY 501 14 ******Routing****** END SCHEMATIC NETWORK <-Volume-> <-Grp> <-Member-><--Mult-->Tran <-Target vols> <-Grp> <-Member-> *** <Name> # <Name> # #<-factor->strg <Name> # # <Name> # # *** COPY 501 OUTPUT MEAN 1 1 12.1 DISPLY 1 INPUT TIMSER 1 <-Volume-> <-Grp> <-Member-><--Mult-->Tran <-Target vols> <-Grp> <-Member-> *** <Name> # <Name> # #<-factor->strg <Name> # # <Name> # # *** END NETWORK RCHRES smith residence(3b) 1/3/2015 10:32:42 PM Page 19 GEN-INFO RCHRES Name Nexits Unit Systems Printer *** # - #< ><---> User T-series Engl Metr LKFG *** in out *** END GEN-INFO *** Section RCHRES*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # HYFG ADFG CNFG HTFG SDFG GQFG OXFG NUFG PKFG PHFG *** END ACTIVITY PRINT-INFO <PLS > ***************** Print-flags ******************* PIVL PYR # - # HYDR ADCA CONS HEAT SED GQL OXRX NUTR PLNK PHCB PIVL PYR ********* END PRINT-INFO HYDR-PARM1 RCHRES Flags for each HYDR Section *** # - # VC Al A2 A3 ODFVFG for each *** ODGTFG for each FUNCT for each FG FG FG FG possible exit *** possible exit possible exit * * * * * * * * * * * * * * *** END HYDR-PARM1 HYDR-PARM2 # - # FTABNO LEN DELTH STCOR KS DB50 *** < >< >< >< >< >< >< > *** END HYDR-PARM2 HYDR-INIT RCHRES Initial conditions for each HYDR section *** # - # *** VOL Initial value of COLIND Initial value of OUTDGT *** ac-ft for each possible exit for each possible exit < >< > <---><---><---><---><---> *** <---><---><---><---><---> END HYDR-INIT END RCHRES SPEC-ACTIONS END SPEC-ACTIONS FTABLES END FTABLES EXT SOURCES <-Volume-> <Member> SsysSgap<--Mult-->Tran <-Target vols> <-Grp> <-Member-> *** <Name> # <Name> # tem strg<-factor->strg <Name> # # <Name> # # *** WDM 2 PREC ENGL 0.8 SUM PERLND 1 999 EXTNL PREC WDM 2 PREC ENGL 0.8 SUM IMPLND 1 999 EXTNL PREC WDM 1 EVAP ENGL 0.76 PERLND 1 999 EXTNL PETINP WDM 1 EVAP ENGL 0.76 IMPLND 1 999 EXTNL PETINP END EXT SOURCES EXT TARGETS <-Volume-> <-Grp> <-Member-><--Mult-->Tran <-Volume-> <Member> Tsys Tgap Amd *** <Name> # <Name> # #<-factor->strg <Name> # <Name> tem strg strg*** COPY 501 OUTPUT MEAN 1 1 12.1 WDM 501 FLOW ENGL REPL END EXT TARGETS MASS-LINK <Volume> <-Grp> <-Member-><--Mult--> <Target> <-Grp> <-Member->*** <Name> <Name> # #<-factor-> <Name> <Name> # #*** MASS-LINK 12 PERLND PWATER SURO 0.083333 COPY INPUT MEAN END MASS-LINK 12 MASS-LINK 13 PERLND PWATER IFWO 0.083333 COPY INPUT MEAN END MASS-LINK 13 MASS-LINK 14 PERLND PWATER AGWO 0.083333 COPY INPUT MEAN smith residence(3b) 1/3/2015 10:32:42 PM Page 20 END MASS-LINK 14 END MASS-LINK END RUN smith residence(3b) 1/3/2015 10:32:42 PM Page 21 Mitigated UCI File RUN GLOBAL WWHM4 model simulation START 1948 10 01 END 2009 09 30 RUN INTERP OUTPUT LEVEL 3 0 RESUME 0 RUN 1 UNIT SYSTEM 1 END GLOBAL FILES <File> <Un#> < File Name >*** <-ID-> *** WDM 26 smith residence (3b) .wdm MESSU 25 Mitsmith residence (3b) .MES 27 Mitsmith residence (3b) .L61 28 Mitsmith residence (3b) .L62 30 POCsmith residence (3b) l.dat END FILES OPN SEQUENCE INGRP INDELT 00:60 PERLND 1 PERLND 4 PERLND 5 PERLND 19 PERLND 31 COPY 501 DISPLY 1 END INGRP END OPN SEQUENCE DISPLY DISPLY-INFO1 # - #< Title >***TRAN PIVL DIG1 FIL1 PYR DIG2 FIL2 YRND 1 Site MAX 1 2 30 9 END DISPLY-INFO1 END DISPLY COPY TIMESERIES # - # NPT NMN *** 1 1 1 501 1 1 END TIMESERIES END COPY GENER OPCODE # # OPCD *** END OPCODE PARM # # K *** END PARM END GENER PERLND GEN-INFO <PLS >< Name >NBLKS Unit-systems Printer *** # - # User t-series Engl Metr *** in out *** 1 A/B, Forest, Flat 1 1 1 1 27 0 4 A/B, Pasture, Flat 1 1 1 1 27 0 5 A/B, Pasture, Mod 1 1 1 1 27 0 19 SAT, Forest, Flat 1 1 1 1 27 0 31 A/B/IMP INF/FLAT 1 1 1 1 27 0 END GEN-INFO *** Section PWATER*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # ATMP SNOW PWAT SED PST PWG PQAL MSTL PEST NITR PHOS TRAC *** 1 0 0 1 0 0 0 0 0 0 0 0 0 smith residence(3b) 1/3/2015 10:32:42 PM Page 22 4 0 0 1 0 0 0 0 0 0 0 0 0 5 0 0 1 0 0 0 0 0 0 0 0 0 19 0 0 1 0 0 0 0 0 0 0 0 0 31 0 0 1 0 0 0 0 0 0 0 0 0 END ACTIVITY PRINT-INFO <PLS > ***************** Print-flags ***************************** PIVL PYR # - # ATMP SNOW PWAT SED PST PWG PQAL MSTL PEST NITR PHOS TRAC ********* 1 0 0 4 0 0 0 0 0 0 0 0 0 1 9 4 0 0 4 0 0 0 0 0 0 0 0 0 1 9 5 0 0 4 0 0 0 0 0 0 0 0 0 1 9 19 0 0 4 0 0 0 0 0 0 0 0 0 1 9 31 0 0 4 0 0 0 0 0 0 0 0 0 1 9 END PRINT-INFO PWAT-PARM1 <PLS > PWATER variable monthly parameter value flags *** # - # CSNO RTOP UZFG VCS VUZ VNN VIFW VIRC VLE INFC HWT *** 1 0 0 0 0 0 0 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 0 19 0 0 0 0 0 0 0 0 0 0 0 31 0 0 0 0 0 0 0 0 0 0 0 END PWAT-PARM1 PWAT-PARM2 <PLS > PWATER input info: Part 2 *** # - # ***FOREST LZSN INFILT LSUR SLSUR KVARY AGWRC 1 0 5 2 400 0.05 0.3 0.996 4 0 5 1.5 400 0.05 0.3 0.996 5 0 5 1.5 400 0.1 0.3 0.996 19 0 4 2 100 0.001 0.5 0.996 31 0 5 0.8 400 0.05 0.3 0.996 END PWAT-PARM2 PWAT-PARM3 <PLS > PWATER input info: Part 3 *** # - # ***PETMAX PETMIN INFEXP INFILD DEEPFR BASETP AGWETP 1 0 0 2 2 0 0 0 4 0 0 2 2 0 0 0 5 0 0 2 2 0 0 0 19 0 0 10 2 0 0 0.7 31 0 0 2 2 0 0 0 END PWAT-PARM3 PWAT-PARM4 <PLS > PWATER input info: Part 4 *** # - # CEPSC UZSN NSUR INTFW IRC LZETP *** 1 0.2 0.5 0.35 0 0.7 0.7 4 0.15 0.5 0.3 0 0.7 0.4 5 0.15 0.5 0.3 0 0.7 0.4 19 0.2 3 0.5 1 0.7 0.8 31 0.1 0.5 0.25 0 0.7 0.25 END PWAT-PARM4 PWAT-STATE1 <PLS > *** Initial conditions at start of simulation ran from 1990 to end of 1992 (pat 1-11-95) RUN 21 *** # - # *** CEPS SURS UZS IFWS LZS AGWS GWVS 1 0 0 0 0 3 1 0 4 0 0 0 0 3 1 0 5 0 0 0 0 3 1 0 19 0 0 0 0 4.2 1 0 31 0 0 0 0 3 1 0 END PWAT-STATE1 END PERLND IMPLND GEN-INFO smith residence(3b) 1/3/2015 10:32:42 PM Page 23 <PLS >< Name > Unit-systems Printer *** # - # User t-series Engl Metr *** in out *** END GEN-INFO *** Section IWATER*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # ATMP SNOW IWAT SLD IWG IQAL *** END ACTIVITY PRINT-INFO <ILS > ******** Print-flags ******** PIVL PYR # - # ATMP SNOW IWAT SLD IWG IQAL ********* END PRINT-INFO IWAT-PARM1 <PLS > IWATER variable monthly parameter value flags *** # - # CSNO RTOP VRS VNN RTLI *** END IWAT-PARM1 IWAT-PARM2 <PLS > IWATER input info: Part 2 *** # - # *** LSUR SLSUR NSUR RETSC END IWAT-PARM2 IWAT-PARM3 <PLS > IWATER input info: Part 3 *** # - # ***PETMAX PETMIN END IWAT-PARM3 IWAT-STATE1 <PLS > *** Initial conditions at start of simulation # - # *** RETS SURS END IWAT-STATE1 END IMPLND SCHEMATIC <-Source-> <--Area--> <-Target-> MBLK *** <Name> # <-factor-> <Name> # Tbl# *** Site*** PERLND 1 2.505 COPY 501 12 PERLND 1 2.505 COPY 501 13 PERLND 1 2 .505 COPY 501 14 PERLND 4 5.327 COPY 501 12 PERLND 4 5.327 COPY 501 13 PERLND 4 5.327 COPY 501 14 PERLND 5 0.535 COPY 501 12 PERLND 5 0.535 COPY 501 13 PERLND 5 0.535 COPY 501 14 PERLND 19 0.477 COPY 501 12 PERLND 19 0.477 COPY 501 13 PERLND 19 0.477 COPY 501 14 PERLND 31 0.819 COPY 501 12 PERLND 31 0.819 COPY 501 13 PERLND 31 0.819 COPY 501 14 ******Routing****** END SCHEMATIC NETWORK <-Volume-> <-Grp> <-Member-><--Mult-->Tran <-Target vols> <-Grp> <-Member-> *** <Name> # <Name> # #<-factor->strg <Name> # # <Name> # # *** COPY 501 OUTPUT MEAN 1 1 12.1 DISPLY 1 INPUT TIMSER 1 <-Volume-> <-Grp> <-Member-><--Mult-->Tran <-Target vols> <-Grp> <-Member-> *** <Name> # <Name> # #<-factor->strg <Name> # # <Name> # # *** smith residence(3b) 1/3/2015 10:32:42 PM Page 24 END NETWORK RCHRES GEN-INFO RCHRES Name Nexits Unit Systems Printer *** # - #< ><---> User T-series Engl Metr LKFG *** in out *** END GEN-INFO *** Section RCHRES*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # HYFG ADFG CNFG HTFG SDFG GQFG OXFG NUFG PKFG PHFG *** END ACTIVITY PRINT-INFO <PLS > ***************** Print-flags ******************* PIVL PYR # - # HYDR ADCA CONS HEAT SED GQL OXRX NUTR PLNK PHCB PIVL PYR ********* END PRINT-INFO HYDR-PARM1 RCHRES Flags for each HYDR Section *** # - # VC Al A2 A3 ODFVFG for each *** ODGTFG for each FUNCT for each FG FG FG FG possible exit *** possible exit possible exit * * * * * * * * * * * * * * *** END HYDR-PARM1 HYDR-PARM2 # - # FTABNO LEN DELTH STCOR KS DB50 *** < >< >< >< >< >< >< > *** END HYDR-PARM2 HYDR-INIT RCHRES Initial conditions for each HYDR section *** # - # *** VOL Initial value of COLIND Initial value of OUTDGT *** ac-ft for each possible exit for each possible exit < >< > <---><---><---><---><---> *** <---><---><---><---><---> END HYDR-INIT END RCHRES SPEC-ACTIONS END SPEC-ACTIONS FTABLES END FTABLES EXT SOURCES <-Volume-> <Member> SsysSgap<--Mult-->Tran <-Target vols> <-Grp> <-Member-> *** <Name> # <Name> # tem strg<-factor->strg <Name> # # <Name> # # *** WDM 2 PREC ENGL 0.8 SUM PERLND 1 999 EXTNL PREC WDM 2 PREC ENGL 0.8 SUM IMPLND 1 999 EXTNL PREC WDM 1 EVAP ENGL 0.76 PERLND 1 999 EXTNL PETINP WDM 1 EVAP ENGL 0.76 IMPLND 1 999 EXTNL PETINP END EXT SOURCES EXT TARGETS <-Volume-> <-Grp> <-Member-><--Mult-->Tran <-Volume-> <Member> Tsys Tgap Amd *** <Name> # <Name> # #<-factor->strg <Name> # <Name> tem strg strg*** COPY 1 OUTPUT MEAN 1 1 12.1 WDM 701 FLOW ENGL REPL COPY 501 OUTPUT MEAN 1 1 12.1 WDM 801 FLOW ENGL REPL END EXT TARGETS MASS-LINK <Volume> <-Grp> <-Member-><--Mult--> <Target> <-Grp> <-Member->*** <Name> <Name> # #<-factor-> <Name> <Name> # #*** MASS-LINK 12 PERLND PWATER SURO 0.083333 COPY INPUT MEAN END MASS-LINK 12 MASS-LINK 13 PERLND PWATER IFWO 0.083333 COPY INPUT MEAN smith residence(3b) 1/3/2015 10:32:42 PM Page 25 END MASS-LINK 13 MASS-LINK 14 PERLND PWATER AGWO 0.083333 COPY INPUT MEAN END MASS-LINK 14 END MASS-LINK END RUN smith residence(3b) 1/3/2015 10:32:42 PM Page 26 Predeveloped HSPF Message File smith residence(3b) 1/3/2015 10:32:42 PM Page 27 Mitigated HSPF Message File smith residence(3b) 1/3/2015 10:32:42 PM Page 28 Disclaimer Legal Notice This program and accompanying documentation are provided 'as-is' without warranty of any kind. The entire risk regarding the performance and results of this program is assumed by End User. Clear Creek Solutions Inc. and the governmental licensee or sublicensees disclaim all warranties, either expressed or implied, including but not limited to implied warranties of program and accompanying documentation. In no event shall Clear Creek Solutions Inc. be liable for any damages whatsoever (including without limitation to damages for loss of business profits, loss of business information, business interruption, and the like) arising out of the use of, or inability to use this program even if Clear Creek Solutions Inc. or their authorized representatives have been advised of the possibility of such damages. Software Copyright© by : Clear Creek Solutions, Inc. 2005-2013; All Rights Reserved. Clear Creek Solutions, Inc. 6200 Capitol Blvd. Ste F Olympia, WA. 98501 Toll Free 1(866)943-0304 Local (360)943-0304 www.clearcreeksolutions.com smith residence(3b) 1/3/2015 10:32:42 PM Page 29 APPENDIX G Operation&Maintenance Plan of Stormwater Facilities Location Smith Residence Todd Road, Port Ludlow,Washington Introduction The roof drainage system protects your foundations,landscape,and the environment.Periodic maintenance is required to promote performance and longevity. Do not connect foundation or additional surface drains to this system. Drainage from/along gravel areas should be allowed to disperse into the forest duff or vegetated areas. Responsibility The owner is responsible for providing inspections and maintenance of the drainage facilities in a manner that promotes functionality consistent with the designed installation. Hazardous materials The parking areas,gravel drives,and roof dispersion discharge to surface water and ultimately infiltrate.The discharging hazardous materials or liquids into/onto them will contaminate the soil around and"downstream"of them. Some of the subsoil is sandy gravel which could facilitate the spread of a contaminant. Please protect the environment by: - Clean-up small spills immediately - Report large spills and spills to the fire department - Dispose of all debris and waste appropriately Inspections Following major storms or snowfalls inspect system and address any issue before it gets worse. Annual inspections and maintenance should be completed prior to the beginning of the rainy season,Oct 1St thru April 30th. It is recommended that inspections begin on or about August 1 to provide time for maintenance and repair and stabilizing disturbed soil prior to the rainy season. Maintenance Roof gutters: Disconnect downspouts at roof leaders to prevent debris from entering the conveyance system.Clean litter from gutters and test downspouts with water from garden hose. Conveyance System: Flush roof leaders to ensure they are functioning. Clean excessive silt from culverts Remove excess silt from outlet protection riprap. Dispersion Areas: Surface erosion shall be addressed immediately when discovered by reshaping of earth and reseeding and/or placement of rock/stone or other armoring to reduce velocities. Walk entire length of dispersion areas and remove large forest litter and rocks that may cause channelization/erosion. If erosion is evident and no obvious cause can be determined—contact engineer for recommendations. Page 1 of 2 Hard Surface runoff(gravel/pavements/roofs): Runoff from all hard surfaces should be monitored throughout the rainy season. Runoff is intended to sheet-flow to the adjoining vegetated area(s)and not allowed to create concentrated flows-except where shown on plans. If the gravel surface or adjoining vegetated areas degrade,runoff will erode the soils and create channels that could degrade the downstream environment.To minimize this, regular maintenance should include: - Removal of all objects/landforms that promote flow concentration - Grade/shape surfaces to promote sheet flow - Construct rock check dams to reduce velocities,trap sediment,promote"sheet"flow in adjoining vegetated areas - Vegetate/seed/mulch all disturbed areas not stabilized with gravel surfacing. Vegetated Areas: Maintain organic content - Use a mulching mower - Annually spread compost Maintain"sheet flow"of runoff—. - Surface erosion shall be addressed immediately when discovered by reshaping of earth and reseeding and/or placement of rock/stone or other armoring to reduce velocities. - See the 4 elements under Hard Surface runoff above IF HARVESTING ROOF RUNOFF: Open Organic Litter Trap and secure a piece of garden fabric over the outlet pipe flowing to the drywell.Using flow from a garden hose,flush the system at each roof leader. Connect all the downspouts to the roof leaders. Organic Litter Trap: This traps leaf litter and other debris thereby preventing material it from entering the downstream closed system.It should be inspected,cleaned,and repaired as needed. As a minimum this should be done prior to the raining season each year. Harvested Water Storage Tank: Remove vent screen and clean Flush vent with water to ensure it is functioning Ensure access lid is secure Clean debris and silt as needed. Page 2 of 2 APPENDIX H USDA United States A product of the National Custom Soil Resource �— Department of Cooperative Soil Survey, Agriculture a joint effort of the United Report for RC S(' States Department of Agriculture and other Jefferson County Federal agencies, State Natural agencies including the Area, Was h i n gto n Resources Agricultural Experiment Conservation Stations, and local service participants Smith I APN 961400004 yak , ,, h -,.74,1:0, _... , : , i :, .75;.' 1:'4%,. 4 .1: 4 t ii ' .4 )k. � t£� ? 'it t i k}F .w". '{ , ir .4,.. ,0.•,,,i,„4*,v, i -'- r' 4r 1. I ''40'. ;''' itic . 4.. N.% " .4.-. t:;, '''. .i';,-; ., , . 4 i,g 1' GL ,awe b i; » W^ d �t di , "N may. C,' At d � g `7a tt M } h±. c k L I I T [ I 8,000 - , `rf"..*,:,:'"o'sl. '' i ' '-44,40.,'„. -.:*:>.,4*- 1`... ''.;'' - '' . 1.' *iiiiii010 Edited to show Approx Parcel January 9, 2015 Preface Soil surveys contain information that affects land use planning in survey areas. They highlight soil limitations that affect various land uses and provide information about the properties of the soils in the survey areas. Soil surveys are designed for many different users, including farmers, ranchers, foresters, agronomists, urban planners, community officials, engineers, developers, builders, and home buyers. Also, conservationists, teachers, students, and specialists in recreation,waste disposal, and pollution control can use the surveys to help them understand,protect,or enhance the environment. Various land use regulations of Federal, State, and local governments may impose special restrictions on land use or land treatment. Soil surveys identify soil properties that are used in making various land use or land treatment decisions. The information is intended to help the land users identify and reduce the effects of soil limitations on various land uses. The landowner or user is responsible for identifying and complying with existing laws and regulations. Although soil survey information can be used for general farm, local, and wider area planning,onsite investigation is needed to supplement this information in some cases. Examples include soil quality assessments(http://www.nres.usda.gov/wps/portal/ nrcs/main/soils/health/) and certain conservation and engineering applications. For more detailed information, contact your local USDA Service Center(http:// offices.sc.egov.usda.gov/locator/app?agency=nres)or your NRCS State Soil Scientist(http://www.nres.usda.gov/wps/portal/nres/detail/soils/contactus/? cid=nres142p2_053951). Great differences in soil properties can occur within short distances. Some soils are seasonally wet or subject to flooding. Some are too unstable to be used as a foundation for buildings or roads. Clayey or wet soils are poorly suited to use as septic tank absorption fields. A high water table makes a soil poorly suited to basements or underground installations. The National Cooperative Soil Survey is a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local agencies. The Natural Resources Conservation Service(NRCS) has leadership for the Federal part of the National Cooperative Soil Survey. Information about soils is updated periodically. Updated information is available through the NRCS Web Soil Survey, the site for official soil survey information. The U.S. Department of Agriculture(USDA)prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation,genetic information, political beliefs, reprisal, or because all or a part of an individual's income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require alternative means 2 for communication of program information (Braille, large print, audiotape, etc.)should contact USDA's TARGET Center at(202) 720-2600 (voice and TDD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410 or call (800) 795-3272 (voice) or(202) 720-6382 (TDD). USDA is an equal opportunity provider and employer. 3 Contents Preface 2 Soil Map 5 Soil Map 6 Legend 7 Map Unit Descriptions 8 Jefferson County Area, Washington 10 AIC—Alderwood gravelly sandy loam, 0 to 15 percent slopes 10 Soil Information for All Uses 11 Soil Reports 11 Soil Physical Properties 11 Engineering Properties 11 Physical Soil Properties 15 Particle Size and Coarse Fragments 19 Water Features 21 Water Features 21 References 24 4 Soil Map The soil map sec tion includes the soil map for the defined area of interest,a list of soil map units on the map and extent of each map unit, and cartographic symbols displayed on the map. Also presented are various metadata about data used to produce the map, and a description of each soil map unit. 5 Z Z a v FLR EP 06980£5 0£980£5 OL580£S OTS80£S OSb90£5 06£80£5 M..a,Zb oZZT M„LZ Z ZZT m m N N Lll Ul F er 64 s a . sue o N , ii N r,, N 8 N , :.. .,. ,,,z,;,,if . .. , ,04,,, IVAIr lc. - x,,,...,,,., .„ o K (0 z a ; ct w in °N a � 2 ,�:. 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V) 3 N O C P. a O_ W O a ° l6 N l6 as d a O 0_ T _ O O W C 7 co co T N (n m 3 'O ._ LL O O T N O O Q @ LL O N N > > N a� 8 d Y c o a`) Y a) 2 ; y .� .; .O c O 8O (a O N of N () a3 c_ N_ Zr) O (a N N c '2 O ` < CO co co p m a] U 0 0 0 J J 2 2 O_ d' co (n co V) c) co a, a c To as •s co u, Custom Soil Resource Report Map Unit Descriptions The map units delineated on the detailed soil maps in a soil survey represent the soils or miscellaneous areas in the survey area. The map unit descriptions, along with the maps, can be used to determine the composition and properties of a unit. A map unit delineation on a soil map represents an area dominated by one or more major kinds of soil or miscellaneous areas. A map unit is identified and named according to the taxonomic classification of the dominant soils. Within a taxonomic class there are precisely defined limits for the properties of the soils.On the landscape, however,the soils are natural phenomena, and they have the characteristic variability of all natural phenomena. Thus, the range of some observed properties may extend beyond the limits defined for a taxonomic class. Areas of soils of a single taxonomic class rarely, if ever, can be mapped without including areas of other taxonomic classes. Consequently, every map unit is made up of the soils or miscellaneous areas for which it is named and some minor components that belong to taxonomic classes other than those of the major soils. Most minor soils have properties similar to those of the dominant soil or soils in the map unit, and thus they do not affect use and management. These are called noncontrasting, or similar, components. They may or may not be mentioned in a particular map unit description. Other minor components, however, have properties and behavioral characteristics divergent enough to affect use or to require different management.These are called contrasting,or dissimilar,components.They generally are in small areas and could not be mapped separately because of the scale used. Some small areas of strongly contrasting soils or miscellaneous areas are identified by a special symbol on the maps. If included in the database for a given area, the contrasting minor components are identified in the map unit descriptions along with some characteristics of each. A few areas of minor components may not have been observed, and consequently they are not mentioned in the descriptions, especially where the pattern was so complex that it was impractical to make enough observations to identify all the soils and miscellaneous areas on the landscape. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The objective of mapping is not to delineate pure taxonomic classes but rather to separate the landscape into landforms or landform segments that have similar use and management requirements. The delineation of such segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, however, onsite investigation is needed to define and locate the soils and miscellaneous areas. An identifying symbol precedes the map unit name in the map unit descriptions. Each description includes general facts about the unit and gives important soil properties and qualities. Soils that have profiles that are almost alike make up a soil series. Except for differences in texture of the surface layer, all the soils of a series have major horizons that are similar in composition, thickness, and arrangement. Soils of one series can differ in texture of the surface layer, slope, stoniness, salinity, degree of erosion, and other characteristics that affect their use. On the basis of such differences, a soil series is divided into soil phases. Most of the areas shown on the detailed soil maps are phases of soil series. The name of a soil phase commonly 8 Custom Soil Resource Report indicates a feature that affects use or management. For example, Alpha silt loam, 0 to 2 percent slopes, is a phase of the Alpha series. Some map units are made up of two or more major soils or miscellaneous areas. These map units are complexes, associations, or undifferentiated groups. A complex consists of two or more soils or miscellaneous areas in such an intricate pattern or in such small areas that they cannot be shown separately on the maps.The pattern and proportion of the soils or miscellaneous areas are somewhat similar in all areas. Alpha-Beta complex, 0 to 6 percent slopes, is an example. An association is made up of two or more geographically associated soils or miscellaneous areas that are shown as one unit on the maps. Because of present or anticipated uses of the map units in the survey area, it was not considered practical or necessary to map the soils or miscellaneous areas separately. The pattern and relative proportion of the soils or miscellaneous areas are somewhat similar. Alpha- Beta association, 0 to 2 percent slopes, is an example. An undifferentiated group is made up of two or more soils or miscellaneous areas that could be mapped individually but are mapped as one unit because similar interpretations can be made for use and management. The pattern and proportion of the soils or miscellaneous areas in a mapped area are not uniform. An area can be made up of only one of the major soils or miscellaneous areas, or it can be made up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example. Some surveys include miscellaneous areas. Such areas have little or no soil material and support little or no vegetation. Rock outcrop is an example. 9 Custom Soil Resource Report Jefferson County Area, Washington AIC—Alderwood gravelly sandy loam, 0 to 15 percent slopes Map Unit Setting National map unit symbol: 2gpl Elevation: 50 to 800 feet Mean annual precipitation: 25 to 60 inches Mean annual air temperature: 48 to 52 degrees F Frost-free period: 180 to 220 days Farmland classification: Farmland of statewide importance Map Unit Composition Alderwood and similar soils: 100 percent Estimates are based on observations, descriptions, and transects of the mapunit Description of Alderwood Setting Landform: Terraces Parent material: Basal till with a component of volcanic ash in the upper part Typical profile H1 -0 to 3 inches: gravelly sandy loam H2-3 to 30 inches: very gravelly loam H3-30 to 60 inches: gravelly sandy loam Properties and qualities Slope: 0 to 15 percent Depth to restrictive feature: 20 to 40 inches to densic material Natural drainage class: Moderately well drained Capacity of the most limiting layer to transmit water(Ksat): Very low to moderately low(0.00 to 0.06 in/hr) Depth to water table: About 18 to 36 inches Frequency of flooding: None Frequency of ponding: None Available water storage in profile: Very low(about 2.5 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 4s Hydrologic Soil Group: B Other vegetative classification: Limited Depth Soils(G002XN302WA) 10 Soil Information for All Uses Soil Reports The Soil Reports section includes various formatted tabular and narrative reports (tables)containing data for each selected soil map unit and each component of each 9 unit. No aggregation of data has occurred as is done in reports in the Soil Properties p P and Qualities and Suitabilities and Limitations sections. The reports contain soil interpretive information as well as basic soil properties and qualities. A description of each report(table) is included. Soil Physical Properties This folder contains a collection of tabular reports that present soil physical properties. The reports(tables)include all selected map units and components for each map unit. Soil physical properties are measured or inferred from direct observations in the field or laboratory. Examples of soil physical properties include percent clay, organic matter, saturated hydraulic conductivity, available water capacity, and bulk density. Engineering Properties This table gives the engineering classifications and the range of engineering properties for the layers of each soil in the survey area. Hydrologic soil group is a group of soils having similar runoff potential under similar storm and cover conditions.The criteria for determining Hydrologic soil group is found in the National Engineering Handbook, Chapter 7 issued May 2007(http:// directives.sc.egov.usda.gov/OpenNonWebContent.aspx?content=17757.wba). Listing HSGs by soil map unit component and not by soil series is a new concept for the engineers. Past engineering references contained lists of HSGs by soil series. Soil series are continually being defined and redefined, and the list of soil series names changes so frequently as to make the task of maintaining a single national list virtually impossible. Therefore, the criteria is now used to calculate the HSG using the component soil properties and no such national series lists will be maintained.All such references are obsolete and their use should be discontinued. Soil properties that influence runoff potential are those that influence the minimum rate of infiltration for a bare soil after prolonged wetting and when not frozen. These properties are depth to a seasonal high water table, saturated hydraulic conductivity after prolonged wetting, and depth to a layer with a very slow water transmission rate. Changes in soil properties caused by land management or climate changes also cause the hydrologic II 11 Custom Soil Resource Report soil group to change. The influence of ground cover is treated independently. There are four hydrologic soil groups, A, B, C, and D, and three dual groups, A/D, B/D, and C/D. In the dual groups, the first letter is for drained areas and the second letter is for undrained areas. The four groups soil roups are described in the following paragraphs: Group A. Soils having a high infiltration rate (low runoff potential)when thoroughly wet. These consist mainly of deep, well drained to excessively drained sands or gravelly sands. These soils have a high rate of water transmission. Group B. Soils having a moderate infiltration rate when thoroughly wet. These consist chiefly of moderately deep or deep, moderately well drained or well drained soils that have moderately fine texture to moderately coarse texture. These soils have a moderate rate of water transmission. Group C. Soils having a slow infiltration rate when thoroughly wet. These consist chiefly of soils having a layer that impedes the downward movement of water or soils of moderately fine texture or fine texture. These soils have a slow rate of water transmission. Group D. Soils having a very slow infiltration rate (high runoff potential)when thoroughly wet. These consist chiefly of clays that have a high shrink-swell potential, soils that have a high water table,soils that have a claypan or clay layer at or near the surface, and soils that are shallow over nearly impervious material. These soils have a very slow rate of water transmission. Depth to the upper and lower boundaries of each layer is indicated. Texture is given in the standard terms used by the U.S. Department of Agriculture. These terms are defined according to percentages of sand,silt,and clay in the fraction of the soil that is less than 2 millimeters in diameter. "Loam," for example, is soil that is 7 to 27 percent clay, 28 to 50 percent silt, and less than 52 percent sand. If the content of particles coarser than sand is 15 percent or more, an appropriate modifier is added, for example, "gravelly." Classification of the soils is determined according to the Unified soil classification system (ASTM, 2005)and the system adopted by the American Association of State Highway and Transportation Officials(AASHTO, 2004). The Unified system classifies soils according to properties that affect their use as construction material. Soils are classified according to particle-size distribution of the fraction less than 3 inches in diameter and according to plasticity index, liquid limit, and organic matter content. Sandy and gravelly soils are identified as GW, GP, GM, GC, SW, SP, SM, and SC; silty and clayey soils as ML, CL, OL, MH, CH, and OH; and highly organic soils as PT. Soils exhibiting engineering properties of two groups can have a dual classification, for example, CL-ML. The AASHTO system classifies soils according to those properties that affect roadway construction and maintenance. In this system, the fraction of a mineral soil that is less than 3 inches in diameter is classified in one of seven groups from A-1 through A-7 on the basis of particle-size distribution, liquid limit, and plasticity index. Soils in group A-1 are coarse grained and low in content of fines(silt and clay).At the other extreme, soils in group A-7 are fine grained. Highly organic soils are classified in group A-8 on the basis of visual inspection. If laboratory data are available, the A-1,A-2, and A-7 groups are further classified as A-1-a,A-1-b, A-2-4, A-2-5,A-2-6, A-2-7,A-7-5, or A-7-6.As an additional refinement, the suitability of a soil as subgrade material can be indicated by a group index number. 12 Custom Soil Resource Report Group index numbers range from 0 for the best subgrade material to 20 or higher for the poorest. Rock fragments larger than 10 inches in diameter and 3 to 10 inches in diameter are indicated as a percentage of the total soil on a dry-weight basis. The percentages are estimates determined mainly by converting volume percentage in the field to weight percentage. Percentage (of soil particles)passing designated sieves is the percentage of the soil fraction less than 3 inches in diameter based on an ovendry weight. The sieves, numbers 4, 10, 40, and 200 (USA Standard Series), have openings of 4.76, 2.00, 0.420, and 0.074 millimeters, respectively. Estimates are based on laboratory tests of soils sampled in the survey area and in nearby areas and on estimates made in the field. Liquid limit and plasticity index(Atterberg limits) indicate the plasticity characteristics of a soil. The estimates are based on test data from the survey area or from nearby areas and on field examination. References: American Association of State Highway and Transportation Officials(AASHTO).2004. Standard specifications for transportation materials and methods of sampling and testing. 24th edition. American Society for Testing and Materials(ASTM). 2005. Standard classification of soils for engineering purposes. ASTM Standard D2487-00. 13 I v m M C 1 ■ I m•••••d > ZIZ Z :O .. 3 U 0 ' Lo O a) �• Q E 0- N N C V X J_ 6 ui I N C N '.. U •• N 1 O - M 1Q. c C M c. ac O O O E su N to p — N 3 Q � X w M N M C a) CZ i I a) U O as 6 o o norU as e a l Q 0 v N 0 L Lc in m O v , o �z_ U O C to I O N o o 6 c a) O ? a I t"� 'O O. V) 10 ` p m U O ; = a) e LL V a 1 > Q A a) fA O) U C O O O — a) C U C0 'Es O OF NN N '1 U C O W Q Q Q Tr N L O w Q a) '- O v Q Q Q Q r g N o (N 0 n a V w O j co C = 0 0 CD (-`7; N or) S. o c :c N a E c 1 � m 010 cm E E C = I >, o >,- >,a) N _ V co y > Ei o 3 a) N- $ it m ' co -o Q 0 > mo>— N f6 3) 0 7+ m O 'p T li "0 4- — IL N Ti) a) mCII `U YOC7 � i11 4. o a 0 a) t M M O CO 1- C O M M U to 2 W C O1.—: �. V 7 1 C O '.. C ca o 0 C _c a) 3 W m Cl) +'' o 11 C 3 .E � "5 0..... i ° ca0rn� • Of O OWE a � � U N N 11• C C C •O 11 111 a) = ,O R m U) - +r C o a a T c Q N O . m Q .a. Z U E E I o c 8 1 c I N n m o a 1 m �O p o 11 Custom Soil Resource Report Physical Soil Properties This table shows estimates of some physical characteristics and features that affect soil behavior. These estimates are given for the layers of each soil in the survey area. The estimates are based on field observations and on test data for these and similar soils. Depth to the upper and lower boundaries of each layer is indicated. Particle size is the effective diameter of a soil particle as measured by sedimentation, sieving,or micrometric methods. Particle sizes are expressed as classes with specific effective diameter class limits.The broad classes are sand,silt,and clay, ranging from the larger to the smaller. Sand as a soil separate consists of mineral soil particles that are 0.05 millimeter to 2 millimeters in diameter. In this table, the estimated sand content of each soil layer is given as a percentage, by weight, of the soil material that is less than 2 millimeters in diameter. Silt as a soil separate consists of mineral soil particles that are 0.002 to 0.05 millimeter in diameter. In this table, the estimated silt content of each soil layer is given as a percentage, by weight, of the soil material that is less than 2 millimeters in diameter. Clay as a soil separate consists of mineral soil particles that are less than 0.002 millimeter in diameter. In this table, the estimated clay content of each soil layer is given as a percentage, by weight, of the soil material that is less than 2 millimeters in diameter. The content of sand, silt, and clay affects the physical behavior of a soil. Particle size is important for engineering and agronomic interpretations, for determination of soil hydrologic qualities, and for soil classification. The amount and kind of clay affect the fertility and physical condition of the soil and the ability of the soil to adsorb cations and to retain moisture. They influence shrink- swell potential, saturated hydraulic conductivity (Ksat), plasticity, the ease of soil dispersion, and other soil properties. The amount and kind of clay in a soil also affect tillage and earthmoving operations. Moist bulk density is the weight of soil(ovendry)per unit volume.Volume is measured when the soil is at field moisture capacity,that is, the moisture content at 1/3-or 1/10- bar(33kPa or 10kPa)moisture tension. Weight is determined after the soil is dried at 105 degrees C. In the table, the estimated moist bulk density of each soil horizon is expressed in grams per cubic centimeter of soil material that is less than 2 millimeters in diameter. Bulk density data are used to compute linear extensibility, shrink-swell potential, available water capacity, total pore space, and other soil properties. The moist bulk density of a soil indicates the pore space available for water and roots. Depending on soil texture, a bulk density of more than 1.4 can restrict water storage and root penetration. Moist bulk density is influenced by texture, kind of clay, content of organic matter, and soil structure. Saturated hydraulic conductivity(Ksat) refers to the ease with which pores in a saturated soil transmit water. The estimates in the table are expressed in terms of micrometers per second. They are based on soil characteristics observed in the field, particularly structure, porosity, and texture. Saturated hydraulic conductivity (Ksat) is considered in the design of soil drainage systems and septic tank absorption fields. 15 Custom Soil Resource Report Available water capacity refers to the quantity of water that the soil is capable of storing for use by plants. The capacity for water storage is given in inches of water per inch of soil for each soil layer. The capacity varies, depending on soil properties that affect retention of water. The most important properties are the content of organic matter, soil texture, bulk density, and soil structure. Available water capacity is an important factor in the choice of plants or crops to be grown and in the design and management of irrigation systems. Available water capacity is not an estimate of the quantity of water actually available to plants at any given time. Linear extensibility refers to the change in length of an unconfined clod as moisture content is decreased from a moist to a dry state. It is an expression of the volume change between the water content of the clod at 1/3-or 1/10-bar tension (33kPa or 10kPa tension) and oven dryness. The volume change is reported in the table as percent change for the whole soil. The amount and type of clay minerals in the soil influence volume change. Linear extensibility is used to determine the shrink-swell potential of soils.The shrink- swell potential is low if the soil has a linear extensibility of less than 3 percent; moderate if 3 to 6 percent; high if 6 to 9 percent; and very high if more than 9 percent. If the linear extensibility is more than 3, shrinking and swelling can cause damage to buildings, roads, and other structures and to plant roots. Special design commonly is needed. Organic matter is the plant and animal residue in the soil at various stages of decomposition. In this table, the estimated content of organic matter is expressed as a percentage, by weight, of the soil material that is less than 2 millimeters in diameter. The content of organic matter in a soil can be maintained by returning crop residue to the soil. Organic matter has a positive effect on available water capacity,water infiltration, soil organism activity, and tilth. It is a source of nitrogen and other nutrients for crops and soil organisms. Erosion factors are shown in the table as the K factor(Kw and Kf) and the T factor. Erosion factor K indicates the susceptibility of a soil to sheet and rill erosion by water. Factor K is one of six factors used in the Universal Soil Loss Equation(USLE)and the Revised Universal Soil Loss Equation (RUSLE)to predict the average annual rate of soil loss by sheet and rill erosion in tons per acre per year. The estimates are based primarily on percentage of silt,sand,and organic matter and on soil structure and Ksat. Values of K range from 0.02 to 0.69. Other factors being equal, the higher the value, the more susceptible the soil is to sheet and rill erosion by water. Erosion factor Kw indicates the erodibility of the whole soil.The estimates are modified by the presence of rock fragments. Erosion factor Kf indicates the erodibility of the fine-earth fraction, or the material less than 2 millimeters in size. Erosion factor T is an estimate of the maximum average annual rate of soil erosion by wind and/or water that can occur without affecting crop productivity over a sustained period. The rate is in tons per acre per year. Wind erodibility groups are made up of soils that have similar properties affecting their susceptibility to wind erosion in cultivated areas.The soils assigned to group 1 are the most susceptible to wind erosion, and those assigned to group 8 are the least susceptible. The groups are described in the"National Soil Survey Handbook." Wind erodibility index is a numerical value indicating the susceptibility of soil to wind erosion, or the tons per acre per year that can be expected to be lost to wind erosion. 16 Custom Soil Resource Report There is a close correlation between wind erosion and the texture of the surface layer, the size and durability of surface clods, rock fragments, organic matter, and a calcareous reaction. Soil moisture and frozen soil layers also influence wind erosion. Reference: United States Department of Agriculture, Natural Resources Conservation Service. National soil survey handbook, title 430-VI. (http://soils.usda.gov) 17 O m (0 '. LO-1- J ____--- � --_I. -� C.aC 0 Lo w w O co M 0 Y S �I W . O ea is 15 o o O E 6 o.. co - 10 C E) C ..- 3 c a N N N 'C 6 0 O CD• O m 0 Q Q III W ... m .- N 0 W 2•° C 1 a O L ° t6d l ; � cia ( > 0 O Q ° l l N C co O 0 0 co J � CL m m ° Z' a0i 0 E m 1 3 I o 0 N 7 a (A L O E 0 0 1'11 O a Ti _ o U —1 O 0 O00 Z.Co tfi Y ( U N g .0 m a,1, 6 LIS 1 O 11 0 '0 O O a 0. as 15 o a • III a 6 Lei] ti N a a LcSll4 N N N C V CO CO a ''. Q1 C O (00 co M co M O M M L' O v LO .0 R a m • c 0 W o -E a O.0 0 > I E V p_ i ° ` 0 ° U Q rn—o am � —° O Q Q III Custom Soil Resource Report Particle Size and Coarse Fragments This table shows estimates of particle size distribution and coarse fragment content of each soil in the survey area. The estimates are based on field observations and on test data for these and similar soils. Depth to the upper and lower boundaries of each layer is indicated. Particle size is the effective diameter of a soil particle as measured by sedimentation, sieving,or micrometric methods. Particle sizes are expressed as classes with specific effective diameter class limits.The broad classes are sand,silt,and clay, ranging from the larger to the smaller. Sand as a soil separate consists of mineral soil particles that are 0.05 millimeter to 2 millimeters in diameter. In this table, the estimated sand content of each soil layer is given as a percentage, by weight, of the soil material that is less than 2 millimeters in diameter. Silt as a soil separate consists of mineral soil particles that are 0.002 to 0.05 millimeter in diameter. In this table, the estimated silt content of each soil layer is given as a percentage, by weight, of the soil material that is less than 2 millimeters in diameter. Clay as a soil separate consists of mineral soil particles that are less than 0.002 millimeter in diameter. In this table, the estimated clay content of each soil layer is given as a percentage, by weight, of the soil material that is less than 2 millimeters in diameter. The content of sand, silt, and clay affects the physical behavior of a soil. Particle size is important for engineering and agronomic interpretations, for determination of soil hydrologic qualities, and for soil classification. The amount and kind of clay affect the fertility and physical condition of the soil and the ability of the soil to adsorb cations and to retain moisture. They influence shrink- swell potential, saturated hydraulic conductivity (Ksat), plasticity, the ease of soil dispersion, and other soil properties. The amount and kind of clay in a soil also affect tillage and earthmoving operations. Total fragments is the content of fragments of rock and other materials larger than 2 millimeters in diameter on volumetric basis of the whole soil. Fragments 2-74 mm refers to the content of coarse fragments in the 2 to 74 millimeter size fraction. Fragments 75-249 mm refers to the content of coarse fragments in teh 75 to 249 millimeter size fraction. Fragments 250-599 mm refers to the content of coarse fragments in the 250 to 599 millimeter size fraction. Fragments>=600 mm refers to the content of coarse fragments in the greater than or equal to 600 millimeter size fraction. Reference: United States Department of Agriculture, Natural Resources Conservation Service. National soil survey handbook, title 430-VI. (http://soils.usda.gov) 19 S E 1 I I c• E r o a E I 2� (4 I I 0. 1 I I I E .0 E 5 E o• a Eo 1 I.IN 1 I 1 N mi ts. 15 I cE I E I a) c t2 LL (N V N O• . W N I SE a E EE 1 -t z. ti n N I 0 h _ CV CO N co_ a 2 O j 4f E Q. N m O CC CC O p I E ~ o rn m a) N M N O LL Q. 7 E V ; O O O U o o0 0o I ao V ms u) + In V) C co _ N a , N 10 ✓ J N R 1 C i R = a _ C i1 Q. 4 m = I,. 0 ((00 Q M CO 11 O C) M O N .` o N O I I I 1 I O co CO N o C ,- Q N 4 2 ' O N 0 f)EE a = ' O ' U 0. f! C) N 2 i.-Q 2 a Q __.I� Custom Soil Resource Report Water Features This folder contains tabular reports that present soil hydrology information.The reports (tables) include all selected map units and components for each map unit. Water Features include ponding frequency, flooding frequency, and depth to water table. Water Features This table gives estimates of various soil water features. The estimates are used in land use planning that involves engineering considerations. Hydrologic soil groups are based on estimates of runoff potential. Soils are assigned to one of four groups according to the rate of water infiltration when the soils are not protected by vegetation, are thoroughly wet, and receive precipitation from long- duration storms. The four hydrologic soil groups are: Group A. Soils having a high infiltration rate (low runoff potential)when thoroughly wet. These consist mainly of deep, well drained to excessively drained sands or gravelly sands. These soils have a high rate of water transmission. Group B. Soils having a moderate infiltration rate when thoroughly wet.These consist chiefly of moderately deep or deep, moderately well drained or well drained soils that have moderately fine texture to moderately coarse texture. These soils have a moderate rate of water transmission. Group C. Soils having a slow infiltration rate when thoroughly wet. These consist chiefly of soils having a layer that impedes the downward movement of water or soils of moderately fine texture or fine texture. These soils have a slow rate of water transmission. Group D. Soils having a very slow infiltration rate (high runoff potential)when thoroughly wet. These consist chiefly of clays that have a high shrink-swell potential, soils that have a high water table, soils that have a claypan or clay layer at or near the surface, and soils that are shallow over nearly impervious material. These soils have a very slow rate of water transmission. If a soil is assigned to a dual hydrologic group (A/D, B/D, or C/D), the first letter is for drained areas and the second is for undrained areas. Surface runoff refers to the loss of water from an area by flow over the land surface. Surface runoff classes are based on slope,climate,and vegetative cover.The concept indicates relative runoff for very specific conditions. It is assumed that the surface of the soil is bare and that the retention of surface water resulting from irregularities in the ground surface is minimal.The classes are negligible,very low,low, medium, high, and very high. The months in the table indicate the portion of the year in which a water table, ponding, and/or flooding is most likely to be a concern. Water table refers to a saturated zone in the soil. The water features table indicates, by month, depth to the top(upper limit)and base(lower limit)of the saturated zone in most years. Estimates of the upper and lower limits are based mainly on observations of the water table at selected sites and on evidence of a saturated zone, namely 21 Custom Soil Resource Report grayish colors or mottles (redoximorphic features) in the soil. A saturated zone that lasts for less than a month is not considered a water table. Ponding is standing water in a closed depression. Unless a drainage system is installed, the water is removed only by percolation, transpiration, or evaporation. The table indicates surface water depth and the duration and frequency of ponding. Duration is expressed as very brief if less than 2 days, brief if 2 to 7 days, long if 7 to 30 days, and very long if more than 30 days. Frequency is expressed as none, rare, occasional, and frequent. None means that ponding is not probable; rare that it is unlikely but possible under unusual weather conditions(the chance of ponding is nearly 0 percent to 5 percent in any year); occasional that it occurs, on the average, once or less in 2 years (the chance of ponding is 5 to 50 percent in any year); and frequent that it occurs, on the average, more than once in 2 years (the chance of ponding is more than 50 percent in any year). Flooding is the temporary inundation of an area caused by overflowing streams, by runoff from adjacent slopes, or by tides. Water standing for short periods after rainfall or snowmelt is not considered flooding, and water standing in swamps and marshes is considered ponding rather than flooding. Duration and frequency are estimated. Duration is expressed as extremely brief if 0.1 hour to 4 hours, very brief if 4 hours to 2 days, brief if 2 to 7 days, long if 7 to 30 days, and very long if more than 30 days. Frequency is expressed as none, very rare, rare, occasional, frequent, and very frequent. None means that flooding is not probable; very rare that it is very unlikely but possible under extremely unusual weather conditions(the chance of flooding is less than 1 percent in any year); rare that it is unlikely but possible under unusual weather conditions(the chance of flooding is 1 to 5 percent in any year); occasional that it occurs infrequently under normal weather conditions(the chance of flooding is 5 to 50 percent in any year); frequent that it is likely to occur often under normal weather conditions(the chance of flooding is more than 50 percent in any year but is less than 50 percent in all months in any year); and very frequent that it is likely to occur very often under normal weather conditions(the chance of flooding is more than 50 percent in all months of any year). The information is based on evidence in the soil profile, namely thin strata of gravel, sand,silt,or clay deposited by floodwater;irregular decrease in organic matter content with increasing depth; and little or no horizon development. Also considered are local information about the extent and levels of flooding and the relation of each soil on the landscape to historic floods. Information on the extent of flooding based on soil data is less specific than that provided by detailed engineering surveys that delineate flood-prone areas at specific flood frequency levels. 22 T a a) U)U)N a) U) U) a) (1) U) U) (1) '. I p) E C C C C C C C C C C C C C LL 0 0 0 0 -0 0 0 0 Cz z z z z z z z z Z Z LL C 0 I I I I I I I II I I I o N cr a) a) li a) a) U) a) N U) U) '� U) I U) a) Ili CO i C C C C C C C C C C C C U. 0 0 0 1 0 0 0 0 0 0 0 0 0 Q Z Z ' Z Z Z Z1Z ' ZIZ Z Z ZI i I i N C C C 0 N :a +. E O 7 °a a c I I I I 1 I I I I I I I O C m Co 0 N 0) a . LL U CO t 7 o I I I I I I I ; I I 11I 1 0. !0 .+ C u) ! E Co Q = _ r�o � ° 1 I I I 1 11 i II I I u) 0 II M N N a O a Co e 3 co E N p riri "' C E ± I I� ' I I I I I I I I III v 2 3 m I z, n I'I Q I'I II N N T j j 7 N N U p_ 0 0 a LL l 2 Q 2 -, -) Q V z 0 �T - al RI v''� a+ 7 7 co en I { i3 V •C Co a L' O O C '08 a) c m 9- c o = a) N W Ti a) C C j N Cl) aI O Q £ £ p ..� 0 a) -a 4.C v W O 0. C p a) CO al v 2 U cn 1 Q Q 1 References American Association of State Highway and Transportation Officials(AASHTO).2004. Standard specifications for transportation materials and methods of sampling and testing. 24th edition. American Society for Testing and Materials(ASTM). 2005. Standard classification of soils for engineering purposes. ASTM Standard D2487-00. Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of wetlands and deep-water habitats of the United States. U.S. Fish and Wildlife Service FWS/OBS-79/31. Federal Register. July 13, 1994. Changes in hydric soils of the United States. Federal Register. September 18, 2002. Hydric soils of the United States. Hurt,G.W.,and L.M.Vasilas,editors.Version 6.0,2006. Field indicators of hydric soils in the United States. National Research Council. 1995. Wetlands: Characteristics and boundaries. Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service. U.S. Department of Agriculture Handbook 18. http://www.nres.usda.gov/wps/portal/nres/ detail/national/soils/?cid=nres142p2_054262 Soil Survey Staff. 1999. Soil taxonomy:A basic system of soil classification for making and interpreting soil surveys. 2nd edition. Natural Resources Conservation Service, U.S. Department of Agriculture Handbook 436. http://www.nres.usda.gov/wps/portal/ nres/detail/national/soils/?cid=n res142p2_053577 Soil Survey Staff. 2010. Keys to soil taxonomy. 11th edition. U.S. Department of Agriculture, Natural Resources Conservation Service. http://www.nres.usda.gov/wps/ portal/nres/detail/national/soils/?cid=nres142p2_053580 Tiner, R.W., Jr. 1985. Wetlands of Delaware. U.S. Fish and Wildlife Service and Delaware Department of Natural Resources and Environmental Control, Wetlands Section. United States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of Engineers wetlands delineation manual. Waterways Experiment Station Technical Report Y-87-1. United States Department of Agriculture, Natural Resources Conservation Service. National forestry manual. http://www.nres.usda.gov/wps/portal/nres/detail/soils/ home/?cid=nres142p2_053374 United States Department of Agriculture, Natural Resources Conservation Service. National range and pasture handbook. http://www.nres.usda.gov/wps/portal/nres/ detail/national/landuse/rangepasture/?cid=stelprdb1043084 24 Custom Soil Resource Report United States Department of Agriculture, Natural Resources Conservation Service. National soil survey handbook, title 430-VI. http://www.nres.usda.gov/wps/portal/ nres/detail/soils/scientists/?cid=nres142p2_054242 United States Department of Agriculture, Natural Resources Conservation Service. 2006. Land resource regions and major land resource areas of the United States, the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook 296. http://www.nres.usda.gov/wps/portal/nres/detail/national/soils/? cid=n res 142p2_053624 United States Department of Agriculture, Soil Conservation Service. 1961. Land capability classification. U.S. Department of Agriculture Handbook 210. http:// www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/nrcs142p2_052290.pdf 25 Operation&Maintenance Plan of Stormwater Facilities Location Smith Residence Todd Road, Port Ludlow,Washington Introduction The roof drainage system protects your foundations,landscape,and the environment.Periodic maintenance is required to promote performance and longevity. Do not connect foundation or additional surface drains to this system. Drainage from/along gravel areas should be allowed to disperse into the forest duff or vegetated areas. Responsibility The owner is responsible for providing inspections and maintenance of the drainage facilities in a manner that promotes functionality consistent with the designed installation. Hazardous materials The parking areas,gravel drives,and roof dispersion discharge to surface water and ultimately infiltrate.The discharging hazardous materials or liquids into/onto them will contaminate the soil around and"downstream"of them. Some of the subsoil is sandy gravel which could facilitate the spread of a contaminant. Please protect the environment by: - Clean-up small spills immediately - Report large spills and spills to the fire department - Dispose of all debris and waste appropriately Inspections Following major storms or snowfalls inspect system and address any issue before it gets worse. Annual inspections and maintenance should be completed prior to the beginning of the rainy season,Oct 1St thru April 30th. It is recommended that inspections begin on or about August 1 to provide time for maintenance and repair and stabilizing disturbed soil prior to the rainy season. Maintenance Roof gutters: Disconnect downspouts at roof leaders to prevent debris from entering the conveyance system.Clean litter from gutters and test downspouts with water from garden hose. Conveyance System: Flush roof leaders to ensure they are functioning. Clean excessive silt from culverts Remove excess silt from outlet protection riprap. Dispersion Areas: Surface erosion shall be addressed immediately when discovered by reshaping of earth and reseeding and/or placement of rock/stone or other armoring to reduce velocities. Walk entire length of dispersion areas and remove large forest litter and rocks that may cause channelization/erosion. If erosion is evident and no obvious cause can be determined—contact engineer for recommendations. Page 1 of 2 Hard Surface runoff(gravel/pavements/roofs): Runoff from all hard surfaces should be monitored throughout the rainy season.Runoff is intended to sheet-flow to the adjoining vegetated area(s)and not allowed to create concentrated flows-except where shown on plans. If the gravel surface or adjoining vegetated areas degrade,runoff will erode the soils and create channels that could degrade the downstream environment.To minimize this, regular maintenance should include: - Removal of all objects/landforms that promote flow concentration - Grade/shape surfaces to promote sheet flow - Construct rock check dams to reduce velocities,trap sediment,promote"sheet"flow in adjoining vegetated areas - Vegetate/seed/mulch all disturbed areas not stabilized with gravel surfacing. Vegetated Areas: Maintain organic content - Use a mulching mower - Annually spread compost Maintain"sheet flow"of runoff—. - Surface erosion shall be addressed immediately when discovered by reshaping of earth and reseeding and/or placement of rock/stone or other armoring to reduce velocities. - See the 4 elements under Hard Surface runoff above IF HARVESTING ROOF RUNOFF: Open Organic Litter Trap and secure a piece of garden fabric over the outlet pipe flowing to the drywell.Using flow from a garden hose,flush the system at each roof leader. Connect all the downspouts to the roof leaders. Organic Litter Trap: This traps leaf litter and other debris thereby preventing material it from entering the downstream closed system.It should be inspected,cleaned,and repaired as needed. As a minimum this should be done prior to the raining season each year. Harvested Water Storage Tank: Remove vent screen and clean Flush vent with water to ensure it is functioning Ensure access lid is secure Clean debris and silt as needed. Page 2 of 2 Operation&Maintenance Plan of Stormwater Facilities Location Smith Residence Todd Road, Port Ludlow,Washington Introduction The roof drainage system protects your foundations,landscape,and the environment.Periodic maintenance is required to promote performance and longevity. Do not connect foundation or additional surface drains to this system. Drainage from/along gravel areas should be allowed to disperse into the forest duff or vegetated areas. Responsibility The owner is responsible for providing inspections and maintenance of the drainage facilities in a manner that promotes functionality consistent with the designed installation. Hazardous materials The parking areas,gravel drives,and roof dispersion discharge to surface water and ultimately infiltrate.The discharging hazardous materials or liquids into/onto them will contaminate the soil around and"downstream"of them. Some of the subsoil is sandy gravel which could facilitate the spread of a contaminant. Please protect the environment by: - Clean-up small spills immediately - Report large spills and spills to the fire department - Dispose of all debris and waste appropriately Inspections Following major storms or snowfalls inspect system and address any issue before it gets worse. Annual inspections and maintenance should be completed prior to the beginning of the rainy season,Oct 1st thru April 30th. It is recommended that inspections begin on or about August 1 to provide time for maintenance and repair and stabilizing disturbed soil prior to the rainy season. Maintenance Roof gutters: Disconnect downspouts at roof leaders to prevent debris from entering the conveyance system.Clean litter from gutters and test downspouts with water from garden hose. Conveyance System: Flush roof leaders to ensure they are functioning. Clean excessive silt from culverts Remove excess silt from outlet protection riprap. Dispersion Areas: Surface erosion shall be addressed immediately when discovered by reshaping of earth and reseeding and/or placement of rock/stone or other armoring to reduce velocities. Walk entire length of dispersion areas and remove large forest litter and rocks that may cause channelization/erosion. If erosion is evident and no obvious cause can be determined—contact engineer for recommendations. Page 1 of 2 Hard Surface runoff(gravel/pavements/roofs): Runoff from all hard surfaces should be monitored throughout the rainy season.Runoff is intended to sheet-flow to the adjoining vegetated area(s)and not allowed to create concentrated flows-except where shown on plans. If the gravel surface or adjoining vegetated areas degrade,runoff will erode the soils and create channels that could degrade the downstream environment.To minimize this, regular maintenance should include: - Removal of all objects/landforms that promote flow concentration - Grade/shape surfaces to promote sheet flow - Construct rock check dams to reduce velocities,trap sediment, promote"sheet'flow in adjoining vegetated areas - Vegetate/seed/mulch all disturbed areas not stabilized with gravel surfacing. Vegetated Areas: Maintain organic content - Use a mulching mower - Annually spread compost Maintain"sheet flow"of runoff—. - Surface erosion shall be addressed immediately when discovered by reshaping of earth and reseeding and/or placement of rock/stone or other armoring to reduce velocities. - See the 4 elements under Hard Surface runoff above IF HARVESTING ROOF RUNOFF: Open Organic Litter Trap and secure a piece of garden fabric over the outlet pipe flowing to the drywell.Using flow from a garden hose,flush the system at each roof leader. Connect all the downspouts to the roof leaders. Organic Litter Trap: This traps leaf litter and other debris thereby preventing material it from entering the downstream closed system.It should be inspected,cleaned,and repaired as needed. As a minimum this should be done prior to the raining season each year. Harvested Water Storage Tank: Remove vent screen and clean Flush vent with water to ensure it is functioning Ensure access lid is secure Clean debris and silt as needed. Page 2 of 2 Operation&Maintenance Plan of Stormwater Facilities Location Smith Residence Todd Road, Port Ludlow,Washington Introduction The roof drainage system protects your foundations,landscape,and the environment.Periodic maintenance is required to promote performance and longevity. Do not connect foundation or additional surface drains to this system. Drainage from/along gravel areas should be allowed to disperse into the forest duff or vegetated areas. Responsibility The owner is responsible for providing inspections and maintenance of the drainage facilities in a manner that promotes functionality consistent with the designed installation. Hazardous materials The parking areas,gravel drives,and roof dispersion discharge to surface water and ultimately infiltrate.The discharging hazardous materials or liquids into/onto them will contaminate the soil around and"downstream"of them. Some of the subsoil is sandy gravel which could facilitate the spread of a contaminant. Please protect the environment by: - Clean-up small spills immediately - Report large spills and spills to the fire department - Dispose of all debris and waste appropriately Inspections Following major storms or snowfalls inspect system and address any issue before it gets worse. Annual inspections and maintenance should be completed prior to the beginning of the rainy season,Oct 1St thru April 30th. It is recommended that inspections begin on or about August 1 to provide time for maintenance and repair and stabilizing disturbed soil prior to the rainy season. Maintenance Roof gutters: Disconnect downspouts at roof leaders to prevent debris from entering the conveyance system.Clean litter from gutters and test downspouts with water from garden hose. Conveyance System: Flush roof leaders to ensure they are functioning. Clean excessive silt from culverts Remove excess silt from outlet protection riprap. Dispersion Areas: Surface erosion shall be addressed immediately when discovered by reshaping of earth and reseeding and/or placement of rock/stone or other armoring to reduce velocities. Walk entire length of dispersion areas and remove large forest litter and rocks that may cause channelization/erosion. If erosion is evident and no obvious cause can be determined—contact engineer for recommendations. Page 1 of 2 Hard Surface runoff(gravel/pavements/roofs): Runoff from all hard surfaces should be monitored throughout the rainy season.Runoff is intended to sheet-flow to the adjoining vegetated area(s)and not allowed to create concentrated flows-except where shown on plans. If the gravel surface or adjoining vegetated areas degrade,runoff will erode the soils and create channels that could degrade the downstream environment.To minimize this, regular maintenance should include: - Removal of all objects/landforms that promote flow concentration - Grade/shape surfaces to promote sheet flow - Construct rock check dams to reduce velocities,trap sediment,promote"sheet"flow in adjoining vegetated areas - Vegetate/seed/mulch all disturbed areas not stabilized with gravel surfacing. Vegetated Areas: Maintain organic content - Use a mulching mower - Annually spread compost Maintain"sheet flow"of runoff—. - Surface erosion shall be addressed immediately when discovered by reshaping of earth and reseeding and/or placement of rock/stone or other armoring to reduce velocities. - See the 4 elements under Hard Surface runoff above IF HARVESTING ROOF RUNOFF: Open Organic Litter Trap and secure a piece of garden fabric over the outlet pipe flowing to the drywell.Using flow from a garden hose,flush the system at each roof leader. Connect all the downspouts to the roof leaders. Organic Litter Trap: This traps leaf litter and other debris thereby preventing material it from entering the downstream closed system.It should be inspected,cleaned,and repaired as needed. As a minimum this should be done prior to the raining season each year. Harvested Water Storage Tank: Remove vent screen and clean Flush vent with water to ensure it is functioning Ensure access lid is secure Clean debris and silt as needed. Page 2 of 2 DRAINAGE & EROSION CONTROL REPORT FOR THE PROPERTY LOCATED ON LOT 4 OF THE INGRAM HEIGHTS SUBDIVISION TODD ROAD JEFFERSON COUNTY, WASHINGTON -- �----- �, � al E PARCEL NO. 961400004 ;�� ! �� rm Prepared for JAS! 1 3 2015 j Richard Smith , _ PO Box 65458 �;,..1 v Port udlow, WA 98365-8746 '''' �� DEVELOPMf_NT fit' ^ ; . ,„ s�tf - 0....:,:t,., u,,.,.,ii-OV" '''••• 'Xii - . ' ' ' e*.... ,.. „4.. , ,,_,-.......„ , .,,,,--..,-,... . .., ,- - .‘.,--*".,.- ./:,....,:.. - - ,.., , ,...1„.„*A".,, , ..- a'. re, ..,‘... .1 ,Alt*.qt . % . ..:160`...i.-44.0 ••:4... .=,„ , lei 'S'. C i 4.fix. " `a'i°.d' &` ` a "� !If g ,gyp x .+�.... _:..d: d er■ •a�.daw+.racv.wc.e.ga..o.ar ," ,a, Qua Engineering, SP 1630 Walnut Street P.O. Box 2094 Port Townsend,0WA 98368 (360) 379-9117; (36 ) 460-7311 cell htandersen @q.com January 2015 INTRODUCTION Quadra Engineering was hired by Richard Smith to develop a drainage and erosion control plan and report for their proposed residential home site on Todd Road Rd. Situated in Jefferson County, Northeast 1/4 , Section 28, Township 28 North, Range 1 East. As part of this analysis, on-site stormwater management was modeled using the Western Washington Hydrology Model 2012, a Stormwater Pollution Prevention Plan (SWPPP) has been prepared for the construction of a private single-family residence, shop, barn, pasture, driveway/parking areas, and routing of utilities. II. DESCRIPTION OF SITE The parcel is Lot 4 of the INGRAM HEIGHTS subdivision and is 19.250-acres, which has RR-20 zoning. It is bound on the: - North and south by Lots 3 & 5 of the subdivision and are developed single-family residential parcels; - West by State of Washington — School land that is an undeveloped RR-20 parcel and contains the Type-Fp stream noted above; and - East by Todd Road, a private gravel road that is the access road and utility corridor for the INGRAM HEIGHTS subdivision. The site is located on the eastern half of the parcel and slopes moderately to the south at approximately 0-15%. The parcel has a domestic water well in its northeast corner that is shared with the parcel to the north. Currently, it has a single point of access from Todd Road. The site is partially cleared of trees and understory vegetation. The rest of the site has natural successional growth of saplings, shrubs, and grasses that is typical of areas that have been harvested for timbered within 10-yrs. The USDA Natural Resources Conservation Service Soil WEB site notes the parcel has a single soil type with the following general characteristics. Alderwood (AIC), a gravelly sandy loam, Hydrologic Soil Group: B, Slight potential of erosion (RUSLE2 factor: Kf= 0.15), moderately well drained with very low available water, Depth to restrictive feature: 20 to 40 inches to densic material, Depth to water table: About 18 to 36 inches. Its typical profile is: 0 to 3 inches: gravelly sandy loam 3 to 30 inches: very gravelly loam 30 to 60 inches: gravelly sandy loam III. SITE INVESTIGATION:. Based on undocumented, anecdotal comments, runoff flows from the parcel north of the site. While no flows were observed during 2 site visits during the wet season and no defined channels were present, evidence of broad, shallow, concentrated could be seen in areas where the vegetation had been cut short for paths/skidder tracks. Further, it appeared that an existing logging road that bisects the parcel was restricting at least a portion of this flow from continuing westward into the other half of the parcel. IV. METHODOLOGY Jefferson County requires the use of the Department of Ecology (DOE) Stormwater Management Manual for Western Washington (SWMMWW), 2012 edition. The proposed new impervious surface area is greater than 2,000-sf. and the proposed land disturbing activity is more than 7,000-sf and is classified a "Large Project". As a result, Minimum Requirements #1 through #10 are required. Design Considerations: Intercept flow from the adjoining parcel north of the site and route/convey it in swale(s) to the western side of the exiting logging road for dispersion into the forest. Disperse roof runoff from the shop and residence into the western portion of the portion of the parcel. Owner will strip and stockpile topsoil and duff material for lining swales and to spread on pasture and landscape areas. Owner composts horse manure from 2 horses and their bedding along with other organic materials. This compost is regularly spread on pasture and landscape to maintain organic content of these areas. Project will require: - A Construction Stormwater General Permit (CSGP) - Appropriate monitoring by a CERTIFIED EROSION AND SEDIMENT CONTROL LEAD (CESCL). The "precip scaling factor" for the site has been changed from 0.80 to 0.76.4 in the WWHM-2012 based the empirical data shown on the attached, "Period of Record Monthly Climate Summaries", for the cities of Port Angeles and Port Townsend (see Appendix E). The adjustment was determined by calculating the ratio of the Average Total Precipitation (ATP). Precip factor= Port Townsend ATP Port Angeles ATP = 19.1 in / 25.0 = 76.4 V. CONCLUSIONS Prior to breaking ground the temporary erosion control measures set forth in this report and plan shall be installed on site to minimize erosion and control sediment discharge during construction activities. These measures include a compost berm and standard soil stabilization BMP's. During construction temporary erosion control measures should be inspected regularly and repaired as necessary. Once the site is developed and stabilized, these BMPs can be removed. VI. LIMITATIONS This report has been prepared for the exclusive use of Richard Smith for the proposed construction of a private home. The recommendations in the report apply only to the property that was examined and they are not applicable to other locations. The investigation and recommendations contained in this report are based upon site condi- tions as they existed at the time of our site inspections. During construction, if subsurface or other conditions are discovered that are significantly different from those described in the report, Quadra Engineering should be advised at once so that the revealed conditions can be reviewed and additional/new recommendations made, where necessary. Unanticipated soil conditions are commonly encountered on construction sites, especially when the topography has been altered years ago. Such unexpected conditions frequently require that additional expenditures be made to attain a properly constructed project. We recommend that a contingency be established in the project budget and schedule to cover unexpected conditions. Within the limitations of scope, schedule and budget, our services have been executed in accordance with generally accepted professional engineering principles and practice. This warranty is in lieu of all others, either expressed or implied. Quadra Engineering, S.P. tC 4-4 arold Andersen, P.E. Jay-M.Ward Owner Designer APPENDICES A.) STORMWATER SITE PLAN SUBMITTAL TEMPLATE B.) STORMWATER CALCULATION WORKSHEET C.) FIGURE 1 : NEW DEVELOPMENT FLOWCHART D.) CRITICAL AREA MAPS (JEFFERSON CO.) E.) PERIOD OF RECORD MONTHLY CLIMATE SUMMARIES F.) CALCULATIONS: WESTERN WASHINGTON HYDROLOGY MODEL-2012 G.) OPERATIONS AND MAINTENANCE SHEETS H.) USDA-NRCS Soil Report Smith APN 961400004 II APPENDIX A *sONO re, JEFFERSON COUNTY DEPARTMENT OF COMMUNITY DEVELOPMENT 621 Sheridan Street • Port Townsend • Washington 98368 360/379-4450 • 360/379-4451 Fax ' INC http://www.co.jefferson.wa.us/commdevelopment/ STORMWATER SITE PLAN SUBMITTAL TEMPLATE MLA# PROJECT/APPLICANT NAME: Richard Smith Please answer all of the following questions to the best of your ability. Where the question calls for depiction on a site map, the applicant may choose to either incorporate the elements into the general plot plan for the Master Land Use Application or to submit a separate stormwater site plan map. Project Overview 1. Describe the proposed developed conditions of the site. Indicate position and relative size of proposed improvements on the site map. The project is a single-family residence developed in multiple phases. It will include the construction of:a single-family residence and an_ ADU, workshop,bam,an on-site sewage system, water line from an existing well, "wire"utilities,driveway and parking area, and a horse pasture. The first phase is expected to be the construction of all utilities,ADU and the pasture Existing Conditions Summary 2. Describe the existing topography. Indicate contours on the site map. The site, which is the eastern 10-acres(approx)of the parcel,is very irregular with undulating slopes ranging between 0 to 15%; with a gross downward slope to the south. 3. Describe the existing vegetation. Indicate native vegetation areas on the site map. Vegetation on the site is the natural successional growth of saplings,shrubs,and grasses that is typical of areas that have been harvested for timbered within 10-yrs.It also has a scattering of maturing trees that were not harvested. — 4. Describe the existing soils. Indicate soil type on the site map. The USDA Natural Resources Conservation Service(NRCS)on-line soil survey for the area indicates the site has a single soil type with the following _ characteristics.Alderwood(AIC),a gravelly sandy loam,Hydrologic Soil Group: B,Slight potential of erosion(RUSLE2 factor:Kf=0.15),moderately well drained with very low available water,Depth to restrictive feature:20 to 40 inches to densic material,Depth to water table:About 18 to 36 inches — 5. Describe the existing site hydrology (i.e., drainage; behavior of water on the site—above, below, and on the ground). Indicate existing stormwater drainage to and from the site on the site map. Depict separate drainage basins on the site map, if applicable, and indicate acreage of each. The site has two basins. The primary basin encompasses the greatest portion of the site and drains thru what will become a pasture. The second basin _ encompasses the northwest portion of the site and receives runoff from the parcel along the north boundary. This basin has had its flow redirected into the primary basin by a logging road that bisects the property along its north-south axis causing excessive flows during heavy storm events.Both basins converge approximately 520-LF south of the parcel's south boundary. 6. Describe any excess levels of noise generated by the proposed use or activity: During Construction activities and Residential use the noise levels are expected to be typical of those considered normal to the activity/use. stormwater site plan template.doc—rev.4/28/2014 5 7. Describe significant geographic features and critical areas (i.e., environmentally sensitive areas such as wetlands, streams, steep slopes,etc.)on the site. Indicate location on the site map. A Type-Fp stream is located approximately 270-ft west of the southwest corner of the parcel and an additional 620-ft from the site. Given the distance from the parcel and site,this is not shown on the map/plans. 8. Describe the general vicinity of the site, including adjacent land uses and structures, utilities, roads, and sensitive/critical areas (streams,wetlands, lakes, steep slopes,etc.). The parcel is Lot 4 of the INGRAM HEIGHTS subdivision,which has RR-20 zoning.It is bound on the: North and south by Lots 3&5 of the subdivision and are developed single-family residential parcels;West by State of Washington-School land that is an- undeveloped RR-20 parcel and contains the Type-Fp stream noted above;and East by Todd Road,a private gravel road that is the access road and utility- corridor for the INGRAM HEIGHTS subdivision. The parcel has a domestic water well in its northeast corner that is shared with the parcel to the north. _ Permanent Stormwater Control Plan This portion of the Stormwater Site Plan consists of the selection and installation of the appropriate stormwater control BMPs and facilities to remain in place after construction of the project is completed. "Medium" size projects are required to have the totals calculated of all impervious surfaces, pollution-generating impervious surfaces, and pollution-generating pervious surfaces to verify that the thresholds for treatment facilities and flow control facilities are not exceeded. g. Describe the developed site hydrology, as proposed. Indicate whether stormwater will be fully dispersed (i.e., per BMP T5.30 in the Manual) or, if not, what types of stormwater flow control will be utilized for the site or specific threshold discharge areas within the site. Locate these facilities on the site plan and differentiate proposed facilities from existing facilities. Runoff from the northwest basin of the site and the flow from the north will be conveyed using swales adjoining the driveway and dispersed into the undeveloped western portion of the parcel;restoring the natural route of flow for this portion of the parcel. Runoff from the shop and residence will also be - dispersed into the western half of the parcel. Runoff from the pasture will sheet flow southward thru natural vegetation.Runoff from the barn will also be - dispersed southward thru natural vegetation. All impervious surfaces are modeled as"A/B IMP INF FLAT"in the WWHM-2012 and lawn is modeled as _ "Flat Pasture." 10. If the project requires the use of stormwater treatment facilities, describe the types of stormwater treatment facilities proposed for use on the site. Locate these facilities on the site plan and differentiate proposed facilities from existing facilities. [This is normally for"large"projects or projects that involve the potential for dispersion of contaminants.] Runoff quality will be provided thru bio-retention.Specifically,runoff from pollution generating surfaces will be conveyed thru native vegetation consistent with the SWMMWW-2012. 11. Describe the performance goals and standards applicable to the project. Stormwater management for the site will be consistent with the,Stormwater Management Manual for Western Washington 2012 edition(SWMMWW-2012). 12. Describe the flow control system. Not applicable,runoff will be retained on the site as modeled with the WWHM3 stormwater site plan template.doc—rev.4/28/2014 6 13. Describe the water quality system. _Runoff from pollution generating surfaces will be conveyed thru native vegetation consistent with the SWMMWW-2012 prior to the possibility/ potential of exiting the parcel. 14. Describe the conveyance system analysis and design. Runoff is conveyed using swales,culverts,and roof leaders. The low flows that are inherent in the Olympic Mountains'"rain shadow",along with —the limited sizes of tributary areas of this project,preclude a necessity for designing for capacity. Given the above:pipes and swales are designed —to provide easy maintenance.Further,pipes are sized to reduce the potential of blockage and swales are designed to increase retention. 15. Describe the source of fill material, physical characteristics of fill material,and deposition of excess material. —"Use specific"materials may be imported from commercial sources for building pads,utility bedding,and driveway surfacing. Topsoil will be _stockpiled and incorporated into open areas of the site.Excess excavated material not suitable for topsoil will be used as common fill within the limits of the site. 16. Proposed methods of placement and compaction consistent with the applicable standards on Appendix Chapter 33 of the Uniform Building Code. As noted in the General Note#2 on the Cover(sheet 1)of the projects plans:All materials and workmanship shall conform to the International —Building Code/International Residential Code 2012&the"Standard Specifications For Road,Bridge,And Municipal Construction", —(hereinafter referred to as the standard specifications)Washington State Department Of Transportation and American Public Works Association, Washington Chapter,2014 Edition,unless specified in this plan or by County Code. 17. Describe the proposed surfacing material. Driveways&parking shall be crushed stone. Garage/shop aprons,patios,and walkways shall be concrete;all other surfacing shall be grass or landscaped. Areas that will be grass covered shall first be fine-graded using the stockpiled topsoil. 18. Describe methods for restoration of the site. The Construction Sequence provided on sheet 2-Stormwater Pollution Prevention Plan details the requirements for completing a Phase of work. 19. An Operation and Maintenance Manual is required for each flow control and treatment facility. [This is normally required for "large"projects only and only those for which facilities are required to control flow or treat runoff.] If included, list the Manuals here. none 20. List here and include any special reports or studies conducted to prepare the Stormwater Site Plan. none 21. List other necessary permits and approvals as required by other regulatory agencies. If those permits or approvals include conditions that affect the drainage plan or contain more restrictive drainage-related requirements,describe those conditions or restrictions here. As a result of disturbing more than 1-acre,a Stormwater Pollution Prevention Plan and Construction Stormwater General Permit is required for this site. The permittee/contractor shall be required to comply with the regulatory conditions explicit for this size/type of project. stormwater site plan template.doc—rev.4/28/2014 CONSTRUCTION STORMWATER POLLUTION PREVENTION PLAN(SWPPP) The Construction SWPPP addresses sediment and erosion control during construction. The BMPs indicated by the applicant in the template that follows must be installed on the ground during all construction phases of the project. The proponent is responsible for preventing sediment and erosion impacts to environmentally sensitive areas and off-site areas. Consult the Construction Stormwater Pollution Prevention (SWPP) Best Management Practices (BMPs) Packet for guidance, particularly with rural residential development. SECTION I–CONSTRUCTION SWPPP NARRATIVE 1. Construction Stormwater Pollution Plan Elements. Describe how each of the Construction SWPPP elements has been or will be addressed. Identify the type and location of BMPs used to satisfy the required element. If an element is not applicable to the proposal,justify in writing. Descriptions of the 12 Elements are found at Volume II Section 3.2.3 of the Manual(beginning on page 3-7). 12 Required Elements–Construction SWPPP 1. Mark Clearing Limits. Sheet 2 of the plan set specifies this requirement in the Construction Sequence and it is shown on the map.Sheets 2,3,and 4 of the plan— set are specifically developed as a SWPPP and identify areas of concern and specific actions/BMPs to implement thru the lifetime of the project. 2. Establish Construction Access. Not applicable-A Stabilized Construction Access is not require on this project due to the nearest paved surface being greater than 1000-ft from the site. 3. Control Flow Rates. Not applicable-Stormwater will be retained on the site. 4. Install Sediment Controls. Sheet 2 of the plan set specifies this requirement in the Construction Sequence and it is shown on the map. Sheets 2,3,and 4 of the plan set are specifically developed as a SWPPP and identify areas of concern and specific actions/BMPs to implement thru the lifetime of the project. 5. Stabilize Soils. Sheet 2 of the plan set indicates this requirement and sheet 3 provides seeding shedule.Sheets 2,3,and 4 of the plan set are specifically developed as a SWPPP and identify areas of concern and specific actions/BMPs to implement thru the lifetime of the project. 6. Protect Slopes. work on steep slopes is not expected 7. Protect Drain Inlets. Not applicable-Drain inlets are limited to optional Organic Litter Traps that will be used in-line of a Stormwater Harvesting Facility 8 stormwater site plan template.doc—rev.4/28/2014 12 Required Elements-Construction SWPPP(continued) 8. Stabilize Channels and Outlets. As shown on sheet 4-SWPPP details swales shall be stabilized using vegetation. There are no existing channels on the site,nor are there channels receiving direct discharge from the pacel 9. Control Pollutants. Sequence item on sheet 2-Stormwater Pollution Plan:Construction#3 specifies the contractor's responsibility to establish Clean Site fueling containment and maintenance areas. 10. Control De-Watering(the act of pumping groundwater or stormwater away from an active construction site). De-watering via pumping is not expected. However,if de-watering is required-2 options are provided.Both include-de-watering is not permitted during storm events:lnstall check dams where shown and pump silty water from excavation to beginning of swale.Install 100-If of 4"perforated pipe-on contour-across upper portion of stabilized/grass covered pasture and pump silty water from excavation. 11. Maintain Best Management Practices(BMPs). Construction Sequence specifies regular&event maintenance requirements 12. Manage the Project. As shown on the SWPPP,a CESCL is required for this project. The CESCL will provide inspections and recommendations regarding the serviceability of BMPs for compliance with the Construction Stormwater General Permit(CSGP)and make recommendations that the contractor/permittee shall implement. 2. Adjacent Areas. a. Description of the adjacent areas that may be affected by site disturbance (e.g., streams, lakes, wetlands, residential areas, roads). It is bound on the: on the North and south by developed single-family residential parcels,these are Lots 3&5 of the Ingram Heights subdivision; on the West by State of Washington-School land that is an undeveloped RR-20 zoned parcel that has recently had a Forest Practices Act harvest and contains aType-Fp stream;and on the East by Todd Road,a private dirt road. b. Description of the downstream drainage path leading from the site to the receiving body of water(minimum distance of 400 yards). If runoff exits the parcel it will be in shallow consentrated flow and it will either: (A)In the case of the primary drainage basin that contains the project site,runoff will flow to a depression on the parcel to the south. The depression is — the result of the driveway constructed on that parcel.From the depression,runoff will continue in a shallow concentrated flow southward approximately — 520-LF to the point of confluence of the western portion described below.(8)For runoff to and thru the western,forested portion of the property,runoff will continue southward approximately 450-LF to the point of confluence noted above. -- (AB)From the confluence,runoff will continue approximately 840-If across and thru the next parcel to a Type 4 stream. 3. Environmentally Sensitive Areas. a. Description of environmentally sensitive areas that are on or adjacent to the site. N/A-the nearest ESA is 890-ft west of the site. 9 stormwater site plan template.doc—rev.4/28/2014 b. Description of special requirements for working in or near environmentally sensitive areas. N/A-see 3a above 4. Erosion Problem Areas. Description of potential erosion problems on site in the context of the characteristics of the on-site soils(e.g.,erodibility, settleability, permeability,depth,texture,soil structure). _THERE ARE NO EROSION PROBLEM AREAS. The USDA Natural Resources Conservation Service(NRCS)on-line soil survey for the area indicates the site has a single soil type with the following characteristics.Alderwood(AIC),a gravelly sandy loam,Hydrologic Soil Group: B,Slight potential of erosion(RUSLE2 factor:Kf=0.15),moderately well drained with very low available water,Depth to restrictive feature:20 to 40 inches to densic material,Depth to water table:About 18 to 36 inches.NOTE:Groundwater was not found during excavating septic soil profile pits. 5. Construction Phasing. a. Construction sequence A detailed Phase/Project Construction Sequence is provided on the SWPPP(sheet 2)of the project plans. b. Construction phasing(if proposed) Proposed phasing is provided on the SWPPP(sheet 2)of the project plans. 6. Construction Schedule. Wet season is October 1 through April 30(page 2-21 of the Manual). I. Provide a proposed construction schedule. It is recommended that earthwork be performed so that disturbed areas have been stabilized prior to the wet-season,Oct 1st thru April 30th. -However,given the site is located in a portion of and benefits from,the Olympic Mountain's rain shadow work may be able to continue. II. Wet Season Construction Activities. a. Proposed wet season construction activities. Construction may be able to continue during the rainy season if approved by the project CESCL. NOTE:Earthwork during the construction season is —known to increase costs,sometimes significantly. b. Proposed wet season construction activities for environmentally sensitive areas. —N/A-there are no ESA in the area of work. 7. Financial/Ownership Responsibilities. a. Identify the property owner responsible for the initiation of bonds and/or other financial securities. PROPERTY OWNER:Richard Smith,PO Box 65458,Port Ludlow, WA 98365-8746 b. Describe bonds and/or other evidence of financial responsibility for liability associated with erosion and sedimentation impacts. 8. Engineering Calculations. Provide Design Calculations on a separate sheet for the following, if applicable. a. Sediment Ponds/Traps. b. Diversions. c. Waterways. d. Runoff/Stormwater Detention Calculations _WWHM-2012 stormwater site plan template.doc—rev.4/28/2014 10 SECTION II—EROSION AND SEDIMENT CONTROL PLAN Sediment and erosion control measures may be depicted on the master land use application plot plan, a stormwater site plan,and/or a separate Construction SWPPP site plan. This is a checklist to ensure that the following are depicted on a site plan: 1. General. a. Vicinity Map b. Jefferson County Approval Block c. Erosion and Sediment Control Notes 2. Site Plan. a. Legal description of subject property. b. North arrow. c. Indicate boundaries of existing vegetation(e.g.,tree lines, pasture areas,etc.). d. Identify and label areas of potential erosion problems. e. Identify FEMA base flood boundaries and Shoreline Management boundaries(if applicable). f. Show existing and proposed contours. g. Indicate drainage basins and direction of flow for individual drainage areas. h. Label final grade contours and identify developed condition drainage basins. i. Delineate areas that are to be cleared and graded. j. Show all cut and fill slopes indicating top and bottom of slope catch lines. 3. Conveyance Systems. a. Designate locations for swales, interceptor trenches,or ditches. b. Show all temporary and permanent drainage pipes,ditches, or cut-off trenches required for erosion&sediment control. c. Provide minimum slope and cover for all temporary pipes or call out pipe inverts. d. Shows grades, dimensions,and direction of flow in all ditches, swales,culverts and pipes. e. Provide details for bypassing off-site runoff around disturbed areas. f. Indicate locations and outlets of any dewatering systems. 4. Location of Detention Best Management Practices(BMPs). Identify location of detention BMPs. 5. Erosion and Sediment Control Facilities. a. Show the locations of sediment trap(s), pond(s), pipes and structures. b. Dimension pond berm widths and inside and outside pond slopes. c. Indicate the trap/pond storage required and the depth, length, and width dimensions. d. Provide typical section views through pond and outlet structure. e. Provide typical details of gravel cone and standpipe, and/or other filtering devices. f. Detail stabilization techniques for outlet/inlet. g. Detail control/restrictor device location and details. h. Specify mulch and/or recommended cover of berms and slopes. i. Provide rock specifications and detail for rock check dam(s), if applicable. j. Specify spacing for rock check dams as required. k. Provide front and side sections of typical rock check dams. I. Indicate the locations and provide details and specifications for silt fabric. m. Locate the construction entrance and provide a detail. 6. Detailed Drawings. Any structural practices used that are not referenced in the Ecology Manual should be explained and illustrated with detailed drawings. 7. Other Pollutant BMPs. Indicate on the site plan the locations of BMPs to be used for the control of pollutants other than sediment(e.g.,concrete wash water). 8. Monitoring Locations. Indicate on the site plan the water quality sampling locations to be used for monitoring water quality on the construction site. Sampling stations should be located upstream and downstream of the project site. stormwater site plan template.doc—rev.4/28/2014 11 Stormwater Site Plan Changes If the designer wishes to make changes or revisions to the originally approved Stormwater Site Plan, the proposed revisions shall be submitted to DCD prior to construction. The submittal shall include substitute pages that include all proposed changes, revised drawings showing any structural changes,and any other supporting information that explains and supports the reason for the change. Final Corrected Plan Submittal If the project included construction of conveyance systems,treatment facilities, flow control facilities, or structural source control BMPs (not standard on-site stormwater management BMPs), the applicant shall submit a final corrected plan ("as-builts")when the project is completed. These should be engineering drawings (stamped by a licensed civil engineer) that accurately represent the project as constructed. APPLICANT SIGNATURE By signing the Construction SWPPP worksheet, I as the applicant/owner attest that the information provided herein is true and correct to the best of my know e. I also ce ify that this application is being made with the full knowledge and consent of all owners a aff cted pr pe li J (LAND'NER OR AUTHORIZED REPRESENTATIVE SIGNATURE) 1iATE) THIS SPACE MAY BE USED FOR ADDITIONAL NOTES, IF NEEDED: 12 stormwater site plan template.doc—rev.4/28/2014 APPENDIX B 4"5°N Cow DEPARTMENT OF COMMUNITY DEVELOPMENT 4, 4., 621 Sheridan Street,Port Townsend,WA 98368 w Tel:360.379.4450 I Fax:360.379.4451 ti Web:www.co.jefferson.wa.us/communitsdevelopment E-mail:dcd@co.jefferson.wa.us ��`SkI N G;S� STORMWATER CALCULATION WORKSHEET MIA# PROJECT/APPLICANT NAME: Richard Smith DETERMINING STORMWATER MANAGEMENT REQUIREMENTS:This stormwater calculation worksheet should be completed first to classify the proposal as "small," "medium," or "large." The size determines whether a Stormwater Site Plan is required in conjunction with a stand-alone stormwater management permit application, building permit application,or other land use approval application that involves stormwater review. The basic information will also be helpful for completing a Stormwater Site Plan, if required. PARCEL SIZE(I.E.,SITE) Size of parcel 19'25 acres An acre contains 43,560 square feet. Multiply the acreage by this figure. Size of parcel in square feet 838510 sq/ft Land-disturbing activity is any activity that results in movement of earth, or a change in the existing soil cover(both vegetative and non-vegetative)and/or the existing soil topography. Land disturbing activities include, but are not limited to clearing,grading,filling, excavation,and compaction associated with stabilization of structures and road construction. Native vegetation is vegetation comprised on plant species, other than noxious weeds, that are indigenous to the coastal region of the Pacific Northwest and which reasonably could have been expected to naturally occur on the site. Examples include species such as Douglas fir, western hemlock, western red cedar, alder, big-leaf maple, and vine maple; shrubs such as willow, elderberry, salmonberry,and salal;herbaceous plants such as sword fern,foam flower,and fireweed. LAND DISTURBING ACTIVITY,CONVERSION OF NATIVE VEGETATION,AND VOLUME OF CUT/FILL Calculate the total area to be cleared, graded,filled, Answer the following two questions related to excavated, and/or compacted for proposed development conversion of native vegetation: project. Include in this calculation the area to be cleared for: 9510 Does the project convert 9 acres or more of Construction site for structures sq/ft native vegetation to lawn or landscaped areas? Drainfield,septic tank, etc. 3500 sq/ft Circle: Yes No Well, utilities,etc. 238 &incidental to other work below sq/ft Does the project convert 2'/acres or more of 26170 native vegetation to pasture? Driveway, parking, roads,etc. sq/ft 86206 Circle: Yes No Lawn, landscaping,etc. sq/ft Other compacted surface, etc. 178128 sq/ft Indicate Total Volumes of Proposed: Total Land Disturbance 300014 sq/ft Cut 1406 Fill 440 (cu/yd) Y ) Impervious surface is a hard surface that either prevents or retards the entry of water into the soil mantle as under natural conditions prior to development. A hard surface area which causes water to run off the surface in greater quantities or at an increased rate of flow from the flow present under natural conditions prior to development. Common impervious surfaces include, but are not limited to roof tops,walkways, patios,driveways, parking lots or storage areas, concrete or asphalt paving,gravel roads, packed earthen materials,and oiled,macadam or other surfaces which similarly impede the natural infiltration of stormwater. stormwater talc worksheet—REV.10/20/2014 1 STORMWATER CALULATIONS–IMPERVIOUS SURFACE NEW EXISTING Structures(all roof area) 9510 sq/ft Structures(all roof area) sq/ft Sidewalks 1Q25 sq/ft Sidewalks sq/ft Patios 875 sq/ft Patios sq/ft Solid Decks sq/ft Solid Decks sq/ft (without infiltration below) (without infiltration below) Driveway, parking, roads,etc 24170 sq/ft Driveway, parking, roads,etc 5300 sq/ft Other(future improvements) 1 000 sq/ft Other sq/ft Total New 35680 sq/ft Total Existing 5300 sq/ft TOTAL NEW+TOTAL EXISTING* 40980 sq/ft *This amount will be used to check total lot coverage. The following questions will help determine whether the proposed project is considered development or redevelopment. DEVELOPMENT v. REDEVELOPMENT Divide the total existing impervious surface above by the size of the parcel and convert to a percentage: 1 Vo Does the site have 35%or more of existing impervious surface? Circle: Yes ri No ril FURTHER INSTRUCTIONS: If the answer is yes,the proposal is considered redevelopment and the attached Figure 2 should be used to determine the applicable Minimum Requirements. If the answer is no, the proposal is considered new development and the attached Figure 1 should be used. At this juncture, the applicant should refer to the applicable Flow Chart to determine the Minimum Requirements for stormwater management. DCD staff will help verify the classification of the project and the application requirements. For proponents of "small" projects who must comply only with Minimum Requirement #2—Construction Stormwater Pollution Prevention—an additional submittal is not required. The proponent is responsible for employing the 12 Elements to control erosion and prevent sediment and other pollutants from leaving the site during the construction phase of the project. Pick up the Construction Stormwater Pollution Prevention (SWPP) Best Management Practices (BMPs) Packet. Proponents of "medium" projects—those that must meet only Minimum Requirements#1 through#5—and for"large" projects—those that must meet all 10 Minimum Requirements—are required to submit a Stormwater Site Plan. DCD has prepared a submittal template of a Stormwater Site Plan, principally for rural residential projects. Complete the template in the Stormwater Site Plan Instructions and Submittal Template or prepare a Stormwater Site Plan using the step-by-step guidance in the Storm water Management Manual. APPLICANT SIGNATURE By signing the Stormwater Calculation W• %eet,I as the applicant/owner attest that the information provided herein is true and correct to the best of m,- iwleglg=. I also ce . .his appkQat' n is being made with the full knowledge and consent of all owners of the affected prope � .. 2.,/_00(5' b , td. 7111/4 / (LA • NER OR AUTHORIZED REPRESENTATIVE SIGNATURE) (DATE) stormwater calc worksheet—REV.10/20/2014 2 APPENDIX C Start Here Does the site have See Redevelopment 35% or more of YIN existing impervious M. Minimum Requirements and coverage? Flow Chart No Does the project convert (Figure 33) 'f acres or more of Does the project vegetation to lawn or result in 5,000 landscaped areas, or square feet,or No convert 2.5 acres or more greater, of new plus of native vegetation to replaced hard pasture? surface area? Does the project Yep Tee No result in 2,000 square feet,or greater, of new plus replaced All Minimum hard surface area? Requirements apply to the new and replaced hard surfaces and converted /Tee No vegetation areas. ,. 1 rnunutri Requirements es the project have 1 through #5 apply to land disturbing the new and replaced activities of 7,0% hard surfaces and the es square feet or greater? land disturbed. No t Minimum Requirement #2 applies. Figure 2A.1 -Flow the for Determining Requirements for New Development j ,1rnn* I �tt'r►imr rn Technical Requirements -livens;2012 2.10 APPENDIX D .1.403 .112,014.? ■00X0. OM/ 8.010S00, waleiga. WETLANDS erass, 02111■11001 9S14/200. rilhaVow 05.5001 SEISMIC HAZARD AREA 961400/91 4.1,09X4, 961400004 fa WOW 92.0001 VA19.901.9 DNR CREEKS , 0210120141 : 111,0000111 01.00029 021M3001 0100000 •210300/ 0,4400004 021013000 LANDSLIDE HAZARD APPENDIX E PORT TOWNSEND, WASHINGTON (456678) Period of Reronl Monthly Climate Summary Period of Record : hi 2/194$to 12131/2005 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Average Max. 45,4 48,5 52,0 57 0 62.8 67.4 71.9 72,2 67.8 58,6 50.4 45.9 58.3 Temperature I F) Average Mtn. 36.4 37.5 38.8 41 9 46.0 49.6 51.9 52.2 49.6 45.1 40.2 37.3 43.9 Temperature(F) Average Prcciptatiutalt<►.1 2.20 1.63 1.71 1.43 1.48 1.26 0.87 0.90 1.06 1.52 2.49 2.57 19.12 ~- Merngc Total 1.4 0.7 0.6 0.0 0.0 0,U 0.0 0.0 0.0 0.0 0.5 0.7 3.9 SnowFall m l Average S►►o++ 0 0 0 0 0 0 0 0 0 0 0 0 0 Depth(m,) Percent of possibk ohcervations for period of record Max. Temp.:93.8%Slim Temp.:93.9°. Precipitation_94.3°.Snowfal: 86.1%Snow Depth:84.2°. Check Station Metadata or Metadata graphics for more detail about data completeness. I fi•aerrr Regional(7rmate('enter, ttrcc JrLLe.(lrt PORT ANGELES, WASHINGTON (456624) Period of Record Monthly Climate Summary Period of Record : 8/ 111933 to 11/30/2007 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Average Max 44,9 47,4 50,2 54.9 60.3 64,2 67.9 67.8 65.0 57.1 49,6 4(10 50 3 Temperature IF) Average Mm- 34.1 35.4 36.9 40.3 44.9 49,0 51.7 51.6 48.7 43.4 38.2 35.5 42.5 Temperature(F) _Average Total 3.91 2.71 2.11 1.26 0.97 0.86 0.53 0.72 1.09 2.51 4.01 4,32 25.00 Precipitation(m.) Average Total 1.8 0.9 0.4 0.0 0.0 0,0 0.0 0.0 0.0 0.0 0.3 0.8 4.2 Snow Fall(in,) Aueragwe Snow 0 0 0 0 0 0 0 0 0 0 0 0 0 Depth(in.) Percent of possible observations for period of record Max.Temp.:98.6%Min. Temp.:98.6%Precipitation:98.8°.Snowfal:95.8°.Snow Depth:95.1% Check Station Metadata or Metadata graphics for more detail about data completeness. Western Regional Climate('enter, tt.tf''4lrL'slu APPENDIX F WWHM2012 PROJECT REPORT General Model Information Project Name: smith residence (3b) Site Name: Smith Residence Site Address: Todd Rd City: Port Ludlow Report Date: 1/3/2015 Gage: Port Angeles Data Start: 1948/10/01 Data End: 2009/09/30 Timestep: Hourly Precip Scale: 0.76 Version: 2013/06/10 POC Thresholds Low Flow Threshold for POC1: 50 Percent of the 2 Year High Flow Threshold for POC1: 50 Year smith residence(3b) 1/3/2015 10:32:33 PM Page 2 Landuse Basin Data Predeveloped Land Use Pre-Devlo P ed Site Bypass: No Ground Water: No Pervious Land Use Acres A B, Forest, Flat 4.207 A B, Pasture, Flat 1.373 A B, Pasture, Mod 1.185 A B IMP INF FLAT 0.122 Pervious Total 6.887 Impervious Land Use Acres Impervious Total 0 Basin Total 6.887 Element Flows To: Surface Interflow Groundwater smith residence(3b) 1/3/2015 10:32:33 PM Page 3 Mitigated Land Use Site Bypass: No GroundWater: No Pervious Land Use Acres A B, Pasture, Flat 5.533 A B, Pasture, Mod 0.535 AB IMPINFFLAT 0.819 Pervious Total 6.887 Impervious Land Use Acres Impervious Total 0 Basin Total 6.887 Element Flows To: Surface Interflow Groundwater smith residence(3b) 1/3/2015 10:32:33 PM Page 4 Routing Elements Predeveloped Routing smith residence(3b) 1/3/2015 10:32:33 PM Page 5 Mitigated Routing smith residence(3b) 1/3/2015 10:32:33 PM Page 6 Analysis Results POC 1 0.1 C98 9ly098 P9obe 0.1 0 02 ► 0.02 3 0.01 .«t 0 01 N IL 0.01 tt! ** 00°10E4 10E3 10E.2 10E4 1 15 100 0., Percemnt Timr Exc®odi.sa 0.5 1 2 5 10 20 30 60 7a 60 90 95 98 99 99.5 1,, + Predeveloped x Mitigated Predeveloped Landuse Totals for POC #1 Total Pervious Area: 6.887 Total Impervious Area: 0 Mitigated Landuse Totals for POC #1 Total Pervious Area: 6.887 Total Impervious Area: 0 Flow Frequency Method: Log Pearson Type III 17B Flow Frequency Return Periods for Predeveloped. POC #1 Return Period Flow(cfs) 2 year 0.007596 5 year 0.012116 10 year 0.015138 25 year 0.018897 50 year 0.021627 100 year 0.024284 Flow Frequency Return Periods for Mitigated. POC #1 Return Period Flow(cfs) 2 year 0.007088 5 year 0.011118 10 year 0.013781 25 year 0.017067 50 year 0.019438 100 year 0.021736 Annual Peaks Annual Peaks for Predeveloped and Mitigated. POC #1 Year Predeveloped Mitigated 1949 0.003 0.003 1950 0.012 0.011 1951 0.014 0.013 1952 0.003 0.003 1953 0.006 0.006 1954 0.021 0.019 1955 0.006 0.006 1956 0.009 0.008 1957 0.007 0.007 1958 0.004 0.004 smith residence(3b) 1/3/2015 10:32:33 PM Page 7 1959 0.010 0.009 1960 0.009 0.008 1961 0.013 0.012 1962 0.004 0.004 1963 0.005 0.005 1964 0.012 0.012 1965 0.008 0.008 1966 0.006 0.005 1967 0.009 0.009 1968 0.007 0.006 1969 0.007 0.007 1970 0.003 0.003 1971 0.009 0.009 1972 0.014 0.012 1973 0.007 0.007 1974 0.009 0.008 1975 0.005 0.005 1976 0.012 0.011 1977 0.003 0.003 1978 0.002 0.002 1979 0.002 0.002 1980 0.008 0.008 1981 0.009 0.009 1982 0.015 0.014 1983 0.009 0.009 1984 0.005 0.005 1985 0.007 0.006 1986 0.010 0.010 1987 0.007 0.007 1988 0.006 0.005 1989 0.007 0.006 1990 0.012 0.010 1991 0.017 0.016 1992 0.011 0.010 1993 0.003 0.003 1994 0.001 0.001 1995 0.005 0.004 1996 0.008 0.008 1997 0.013 0.012 1998 0.004 0.004 1999 0.031 0.027 2000 0.010 0.009 2001 0.004 0.004 2002 0.013 0.012 2003 0.009 0.009 2004 0.013 0.012 2005 0.006 0.006 2006 0.012 0.011 2007 0.011 0.010 2008 0.006 0.005 2009 0.005 0.005 Ranked Annual Peaks Ranked Annual Peaks for Predeveloped and Mitigated. POC #1 Rank Predeveloped Mitigated 1 0.0308 0.0275 2 0.0207 0.0186 3 0.0174 0.0157 smith residence(3b) 1/3/2015 10:32:41 PM Page 8 4 0.0155 0.0143 5 0.0144 0.0128 6 0.0142 0.0124 7 0.0132 0.0122 8 0.0132 0.0119 9 0.0130 0.0119 10 0.0129 0.0117 11 0.0124 0.0116 12 0.0123 0.0112 13 0.0120 0.0110 14 0.0117 0.0107 15 0.0115 0.0105 16 0.0109 0.0101 17 0.0109 0.0100 18 0.0105 0.0095 19 0.0099 0.0091 20 0.0096 0.0090 21 0.0095 0.0088 22 0.0094 0.0088 23 0.0094 0.0086 24 0.0092 0.0086 25 0.0091 0.0085 26 0.0091 0.0084 27 0.0089 0.0082 28 0.0089 0.0081 29 0.0083 0.0081 30 0.0083 0.0077 31 0.0081 0.0075 32 0.0073 0.0069 33 0.0072 0.0069 34 0.0072 0.0066 35 0.0070 0.0065 36 0.0068 0.0065 37 0.0067 0.0063 38 0.0067 0.0062 39 0.0064 0.0062 40 0.0062 0.0061 41 0.0060 0.0056 42 0.0059 0.0055 43 0.0058 0.0054 44 0.0056 0.0053 45 0.0054 0.0052 46 0.0052 0.0050 47 0.0051 0.0049 48 0.0051 0.0048 49 0.0047 0.0044 50 0.0043 0.0039 51 0.0041 0.0038 52 0.0038 0.0037 53 0.0037 0.0036 54 0.0034 0.0034 55 0.0033 0.0032 56 0.0032 0.0031 57 0.0030 0.0027 58 0.0027 0.0026 59 0.0022 0.0021 60 0.0020 0.0019 61 0.0014 0.0014 smith residence(3b) 1/3/2015 10:32:41 PM Page 9 smith residence(3b) 1/3/2015 10:32:41 PM Page 10 Duration Flows The Facility PASSED Flow(cfs) Predev Mit Percentage Pass/Fail 0.0038 203675 181324 89 Pass 0.0040 189826 167207 88 Pass 1 0.0042 176565 154213 87 Pass 0.0043 163517 141754 86 Pass 0.0045 151647 130953 86 Pass 0.0047 141166 121061 85 Pass 0.0049 131434 112505 85 Pass 0.0051 122451 104110 85 Pass 0.0052 114537 95234 83 Pass 0.0054 106784 87427 81 Pass 0.0056 98602 80850 81 Pass 0.0058 90956 75235 82 Pass 0.0060 84593 70209 82 Pass 0.0061 79139 65236 82 Pass 0.0063 74059 60477 81 Pass 0.0065 69300 56092 80 Pass 0.0067 64808 51761 79 Pass 0.0069 60584 48066 79 Pass 0.0070 56734 44510 78 Pass 0.0072 52895 40992 77 Pass 0.0074 49494 37468 75 Pass 0.0076 46136 34062 73 Pass 0.0078 42772 30762 71 Pass 0.0079 39633 27864 70 Pass 0.0081 36559 25421 69 Pass 0.0083 33329 23079 69 Pass 0.0085 30543 21357 69 Pass 0.0087 27944 19769 70 Pass 0.0088 25688 18389 71 Pass 0.0090 23586 17250 73 Pass 0.0092 22047 16149 73 Pass 0.0094 20817 15084 72 Pass 0.0096 19614 14101 71 Pass 0.0097 18544 13133 70 Pass 0.0099 17448 12261 70 Pass 0.0101 16411 11438 69 Pass 0.0103 15411 10716 69 Pass 0.0105 14518 9967 68 Pass 0.0106 13705 9229 67 Pass 0.0108 12865 8614 66 Pass 0.0110 12063 7935 65 Pass 0.0112 11357 7390 65 Pass 0.0114 10678 6764 63 Pass 0.0115 9946 6171 62 Pass 0.0117 9251 5743 62 Pass 0.0119 8652 5401 62 Pass 0.0121 7983 5127 64 Pass 0.0123 7411 4841 65 Pass 0.0124 6898 4583 66 Pass 0.0126 6417 4348 67 Pass 0.0128 5967 4034 67 Pass 0.0130 5631 3794 67 Pass 0.0132 5335 3586 67 Pass smith residence(3b) 1/3/2015 10:32:41 PM Page 11 0.0133 5072 3353 66 Pass 0.0135 4864 3158 64 Pass 0.0137 4656 2972 63 Pass 0.0139 4407 2863 64 Pass 0.0141 4149 2739 66 Pass 0.0142 3932 2580 65 Pass 0.0144 3727 2456 65 Pass 0.0146 3524 2361 66 Pass 0.0148 3342 2275 68 Pass 0.0150 3146 2152 68 Pass 0.0151 3005 2022 67 Pass 0.0153 2922 1904 65 Pass 0.0155 2790 1813 64 Pass 0.0157 2690 1768 65 Pass 0.0159 2530 1676 66 Pass 0.0160 2454 1594 64 Pass 0.0162 2360 1477 62 Pass 0.0164 2280 1403 61 Pass 0.0166 2161 1277 59 Pass 0.0168 2084 1243 59 Pass 0.0169 1965 1108 56 Pass 0.0171 1891 1076 56 Pass 0.0173 1799 971 53 Pass 0.0175 1784 920 51 Pass 0.0177 1692 852 50 Pass 0.0178 1653 797 48 Pass 0.0180 1523 754 49 Pass 0.0182 1453 712 49 Pass 0.0184 1358 684 50 Pass 0.0186 1273 616 48 Pass 0.0187 1237 592 47 Pass 0.0189 1125 553 49 Pass 0.0191 1086 536 49 Pass 0.0193 1036 534 51 Pass 0.0195 944 510 54 Pass 0.0196 908 510 56 Pass 0.0198 836 501 59 Pass 0.0200 796 485 60 Pass 0.0202 764 485 63 Pass 0.0204 712 472 66 Pass 0.0205 685 457 66 Pass 0.0207 643 456 70 Pass 0.0209 601 421 70 Pass 0.0211 569 411 72 Pass 0.0213 540 402 74 Pass 0.0214 534 382 71 Pass 0.0216 534 381 71 Pass smith residence(3b) 1/ ( ) /2 1 3 0 5 10:32:42 PM Page 12 Water Quality Water Quality BMP Flow and Volume for POC #1 On-line facility volume: 0 acre-feet On-line facility target flow: 0 cfs. Adjusted for 15 min: 0 cfs. Off-line facility target flow: 0 cfs. Adjusted for 15 min: 0 cfs. smith residence(3b) 1/3/2015 10:32:42 PM Page 13 Model Default Modifications Total of 0 changes have been made. PERLND Changes No PERLND changes have been made. IMPLND Changes No IMPLND changes have been made. smith residence(3b) 1/3/2015 10:32:42 PM Page 14 Appendix Predeveloped Schematic Site 69ac smith residence (3b) 1/3/2015 10:32:42 PM Page 15 Mitigated Schematic ite .89ac. smith residence (3b) 1/3/2015 10:32:42 PM Page 16 Predeveloped UCI File RUN GLOBAL WWHM4 model simulation START 1948 10 01 END 2009 09 30 RUN INTERP OUTPUT LEVEL 3 0 RESUME 0 RUN 1 UNIT SYSTEM 1 END GLOBAL FILES <File> <Un#> < File Name >*** <-ID-> *** WDM 26 smith residence (3b) .wdm MESSU 25 Presmith residence (3b) .MES 27 Presmith residence (3b) .L61 28 Presmith residence (3b) .L62 30 POCsmith residence (3b)l.dat END FILES OPN SEQUENCE INGRP INDELT 00:60 PERLND 1 PERLND 4 PERLND 5 PERLND 19 PERLND 31 COPY 501 DISPLY 1 END INGRP END OPN SEQUENCE DISPLY DISPLY-INFO1 # - #< Title >***TRAN PIVL DIG1 FIL1 PYR DIG2 FIL2 YRND 1 Pre-Settlement MAX 1 2 30 9 END DISPLY-INFO1 END DISPLY COPY TIMESERIES # - # NPT NMN *** 1 1 1 501 1 1 END TIMESERIES END COPY GENER OPCODE # # OPCD *** END OPCODE PARM # # K *** END PARM END GENER PERLND GEN-INFO <PLS >< Name >NBLKS Unit-systems Printer *** # - # User t-series Engl Metr *** in out *** 1 A/B, Forest, Flat 1 1 1 1 27 0 4 A/B, Pasture, Flat 1 1 1 1 27 0 5 A/B, Pasture, Mod 1 1 1 1 27 0 19 SAT, Forest, Flat 1 1 1 1 27 0 31 A/B/IMP INF/FLAT 1 1 1 1 27 0 END GEN-INFO *** Section PWATER*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # ATMP SNOW PWAT SED PST PWG PQAL MSTL PEST NITR PHOS TRAC *** 1 0 0 1 0 0 0 0 0 0 0 0 0 smith residence(3b) 1/3/2015 10:32:42 PM Page 17 4 0 0 1 0 0 0 0 0 0 0 0 0 5 0 0 1 0 0 0 0 0 0 0 0 0 19 0 0 1 0 0 0 0 0 0 0 0 0 31 0 0 1 0 0 0 0 0 0 0 0 0 END ACTIVITY PRINT-INFO <PLS > ***************** Print-flags ***************************** PIVL PYR # - # ATMP SNOW PWAT SED PST PWG PQAL MSTL PEST NITR PHOS TRAC ********* 1 0 0 4 0 0 0 0 0 0 0 0 0 1 9 4 0 0 4 0 0 0 0 0 0 0 0 0 1 9 5 0 0 4 0 0 0 0 0 0 0 0 0 1 9 19 0 0 4 0 0 0 0 0 0 0 0 0 1 9 31 0 0 4 0 0 0 0 0 0 0 0 0 1 9 I END PRINT-INFO PWAT-PARM1 <PLS > PWATER variable monthly parameter value flags *** # - # CSNO RTOP UZFG VCS VUZ VNN VIFW VIRC VLE INFC HWT *** 1 0 0 0 0 0 0 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 0 19 0 0 0 0 0 0 0 0 0 0 0 31 0 0 0 0 0 0 0 0 0 0 0 END PWAT-PARM1 PWAT-PARM2 <PLS > PWATER input info: Part 2 *** # - # ***FOREST LZSN INFILT LSUR SLSUR KVARY AGWRC 1 0 5 2 400 0.05 0.3 0.996 4 0 5 1.5 400 0.05 0.3 0.996 5 0 5 1.5 400 0.1 0.3 0.996 19 0 4 2 100 0.001 0.5 0.996 31 0 5 0.8 400 0.05 0.3 0.996 END PWAT-PARM2 PWAT-PARM3 <PLS > PWATER input info: Part 3 *** # - # ***PETMAX PETMIN INFEXP INFILD DEEPFR BASETP AGWETP 1 0 0 2 2 0 0 0 4 0 0 2 2 0 0 0 5 0 0 2 2 0 0 0 19 0 0 10 2 0 0 0.7 31 0 0 2 2 0 0 0 END PWAT-PARM3 PWAT-PARM4 <PLS > PWATER input info: Part 4 *** # - # CEPSC UZSN NSUR INTFW IRC LZETP *** 1 0.2 0.5 0.35 0 0.7 0.7 4 0.15 0.5 0.3 0 0.7 0.4 5 0.15 0.5 0.3 0 0.7 0.4 19 0.2 3 0.5 1 0.7 0.8 31 0.1 0.5 0.25 0 0.7 0.25 END PWAT-PARM4 PWAT-STATE1 <PLS > *** Initial conditions at start of simulation ran from 1990 to end of 1992 (pat 1-11-95) RUN 21 *** # - # *** CEPS SURS UZS IFWS LZS AGWS GWVS 1 0 0 0 0 3 1 0 4 0 0 0 0 3 1 0 5 0 0 0 0 3 1 0 19 0 0 0 0 4.2 1 0 31 0 0 0 0 3 1 0 END PWAT-STATE1 END PERLND IMPLND GEN-INFO smith residence Pb) 1/3/2015 10:32:42 PM Page 18 <PLS >< Name > Unit-systems Printer *** # - # User t-series Engl Metr *** in out *** END GEN-INFO *** Section IWATER*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # ATMP SNOW IWAT SLD IWG IQAL *** END ACTIVITY PRINT-INFO <ILS > ******** Print-flags ******** PIVL PYR # - # ATMP SNOW IWAT SLD IWG IQAL ********* END PRINT-INFO IWAT-PARM1 <PLS > IWATER variable monthly parameter value flags *** # - # CSNO RTOP VRS VNN RTLI *** END IWAT-PARM1 IWAT-PARM2 <PLS > IWATER input info: Part 2 *** # - # *** LSUR SLSUR NSUR RETSC END IWAT-PARM2 IWAT-PARM3 <PLS > IWATER input info: Part 3 *** # - # ***PETMAX PETMIN END IWAT-PARM3 IWAT-STATE1 <PLS > *** Initial conditions at start of simulation # - # *** RETS SURS END IWAT-STATE1 END IMPLND SCHEMATIC <-Source-> <--Area--> <-Target-> MBLK *** <Name> # <-factor-> <Name> # Tbl# *** Pre-Settlement*** PERLND 1 5.095 COPY 501 12 PERLND 1 5.095 COPY 501 13 PERLND 1 5.095 COPY 501 14 PERLND 4 1.373 COPY 501 12 PERLND 4 1.373 COPY 501 13 PERLND 4 1.373 COPY 501 14 PERLND 5 1.185 COPY 501 12 PERLND 5 1.185 COPY 501 13 PERLND 5 1.185 COPY 501 14 PERLND 19 1.888 COPY 501 12 PERLND 19 1.888 COPY 501 13 PERLND 19 1.888 COPY 501 14 ******Routing****** END SCHEMATIC NETWORK <-Volume-> <-Grp> <-Member-><--Mult-->Tran <-Target vols> <-Grp> <-Member-> *** <Name> # <Name> # #<-factor->strg <Name> # # <Name> # # *** COPY 501 OUTPUT MEAN 1 1 12.1 DISPLY 1 INPUT TIMSER 1 <-Volume-> <-Grp> <-Member-><--Mult-->Tran <-Target vols> <-Grp> <-Member-> *** <Name> # <Name> # #<-factor->strg <Name> # # <Name> # # *** END NETWORK RCHRES smith residence(3b) 1/3/2015 10:32:42 PM Page 19 GEN-INFO RCHRES Name Nexits Unit Systems Printer *** # - #< ><---> User T-series Engl Metr LKFG *** in out *** END GEN-INFO *** Section RCHRES*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # HYFG ADFG CNFG HTFG SDFG GQFG OXFG NUFG PKFG PHFG *** END ACTIVITY PRINT-INFO <PLS > ***************** Print-flags ******************* PIVL PYR # - # HYDR ADCA CONS HEAT SED GQL OXRX NUTR PLNK PHCB PIVL PYR ********* END PRINT-INFO HYDR-PARM1 RCHRES Flags for each HYDR Section *** # - # VC Al A2 A3 ODFVFG for each *** ODGTFG for each FUNCT for each FG FG FG FG possible exit *** possible exit possible exit * * * * * * * * * * * * * * *** END HYDR-PARM1 HYDR-PARM2 # - # FTABNO LEN DELTH STCOR KS DB50 *** >< >< >< >< >< >< > *** END HYDR-PARM2 HYDR-INIT RCHRES Initial conditions for each HYDR section *** # - # *** VOL Initial value of COLIND Initial value of OUTDGT *** ac-ft for each possible exit for each possible exit >< > <---><---><---><---><---> *** <---><---><---><---><---> END HYDR-INIT END RCHRES SPEC-ACTIONS END SPEC-ACTIONS FTABLES END FTABLES EXT SOURCES <-Volume-> <Member> SsysSgap<--Mult-->Tran <-Target vols> <-Grp> <-Member-> *** <Name> # <Name> # tem strg<-factor->strg <Name> # # <Name> # # *** WDM 2 PREC ENGL 0.8 SUM PERLND 1 999 EXTNL PREC WDM 2 PREC ENGL 0.8 SUM IMPLND 1 999 EXTNL PREC WDM 1 EVAP ENGL 0.76 PERLND 1 999 EXTNL PETINP WDM 1 EVAP ENGL 0.76 IMPLND 1 999 EXTNL PETINP END EXT SOURCES EXT TARGETS <-Volume-> <-Grp> <-Member-><--Mult-->Tran <-Volume-> <Member> Tsys Tgap Amd *** <Name> # <Name> # #<-factor->strg <Name> # <Name> tem strg strg*** COPY 501 OUTPUT MEAN 1 1 12.1 WDM 501 FLOW ENGL REPL END EXT TARGETS MASS-LINK <Volume> <-Grp> <-Member-><--Mult--> <Target> <-Grp> <-Member->*** <Name> <Name> # #<-factor-> <Name> <Name> # #*** MASS-LINK 12 PERLND PWATER SURO 0.083333 COPY INPUT MEAN END MASS-LINK 12 MASS-LINK 13 PERLND PWATER IFWO 0.083333 COPY INPUT MEAN END MASS-LINK 13 MASS-LINK 14 PERLND PWATER AGWO 0.083333 COPY INPUT MEAN smith residence(3b) 1/3/2015 10:32:42 PM Page 20 END MASS-LINK 14 END MASS-LINK END RUN ail smith residence(3b) 1/3/2015 10:32:42 PM Page 21 Mitigated UCI File RUN GLOBAL WWHM4 model simulation START 1948 10 01 END 2009 09 30 RUN INTERP OUTPUT LEVEL 3 0 RESUME 0 RUN 1 UNIT SYSTEM 1 END GLOBAL FILES <File> <Un#> < File Name >*** <-ID-> *** WDM 26 smith residence (3b) .wdm MESSU 25 Mitsmith residence (3b) .MES 27 Mitsmith residence (3b) .L61 28 Mitsmith residence (3b) .L62 30 POCsmith residence (3b) l.dat END FILES OPN SEQUENCE INGRP INDELT 00:60 PERLND 1 PERLND 4 PERLND 5 PERLND 19 PERLND 31 COPY 501 DISPLY 1 END INGRP END OPN SEQUENCE DISPLY DISPLY-INFO1 # - #< Title >***TRAN PIVL DIG1 FIL1 PYR DIG2 FIL2 YRND 1 Site MAX 1 2 30 9 END DISPLY-INFO1 END DISPLY COPY TIMESERIES # - # NPT NMN *** 1 1 1 501 1 1 END TIMESERIES END COPY GENER OPCODE # # OPCD *** END OPCODE PARM # # K *** END PARM END GENER PERLND GEN-INFO <PLS >< Name >NBLKS Unit-systems Printer *** # - # User t-series Engl Metr *** in out *** 1 A/B, Forest, Flat 1 1 1 1 27 0 4 A/B, Pasture, Flat 1 1 1 1 27 0 5 A/B, Pasture, Mod 1 1 1 1 27 0 19 SAT, Forest, Flat 1 1 1 1 27 0 31 A/B/IMP INF/FLAT 1 1 1 1 27 0 END GEN-INFO *** Section PWATER*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # ATMP SNOW PWAT SED PST PWG PQAL MSTL PEST NITR PHOS TRAC *** 1 0 0 1 0 0 0 0 0 0 0 0 0 smith residence(3b) 1/3/2015 10:32:42 PM Page 22 4 0 0 1 0 0 0 0 0 0 0 0 0 5 0 0 1 0 0 0 0 0 0 0 0 0 19 0 0 1 0 0 0 0 0 0 0 0 0 31 0 0 1 0 0 0 0 0 0 0 0 0 END ACTIVITY PRINT-INFO <PLS > ***************** Print-flags ***************************** PIVL PYR # - # ATMP SNOW PWAT SED PST PWG PQAL MSTL PEST NITR PHOS TRAC ********* 1 0 0 4 0 0 0 0 0 0 0 0 0 1 9 4 0 0 4 0 0 0 0 0 0 0 0 0 1 9 5 0 0 4 0 0 0 0 0 0 0 0 0 1 9 19 0 0 4 0 0 0 0 0 0 0 0 0 1 9 31 0 0 4 0 0 0 0 0 0 0 0 0 1 9 END PRINT-INFO PWAT-PARM1 <PLS > PWATER variable monthly parameter value flags *** # - # CSNO RTOP UZFG VCS VUZ VNN VIFW VIRC VLE INFC HWT *** 1 0 0 0 0 0 0 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 0 19 0 0 0 0 0 0 0 0 0 0 0 31 0 0 0 0 0 0 0 0 0 0 0 END PWAT-PARM1 PWAT-PARM2 <PLS > PWATER input info: Part 2 *** # - # ***FOREST LZSN INFILT LSUR SLSUR KVARY AGWRC 1 0 5 2 400 0.05 0.3 0.996 4 0 5 1.5 400 0.05 0.3 0.996 5 0 5 1.5 400 0.1 0.3 0.996 19 0 4 2 100 0.001 0.5 0.996 31 0 5 0.8 400 0.05 0.3 0.996 END PWAT-PARM2 PWAT-PARM3 <PLS > PWATER input info: Part 3 *** # - # ***PETMAX PETMIN INFEXP INFILD DEEPFR BASETP AGWETP 1 0 0 2 2 0 0 0 4 0 0 2 2 0 0 0 5 0 0 2 2 0 0 0 19 0 0 10 2 0 0 0.7 31 0 0 2 2 0 0 0 END PWAT-PARM3 PWAT-PARM4 <PLS > PWATER input info: Part 4 *** # - # CEPSC UZSN NSUR INTFW IRC LZETP *** 1 0.2 0.5 0.35 0 0.7 0.7 4 0.15 0.5 0.3 0 0.7 0.4 5 0.15 0.5 0.3 0 0.7 0.4 19 0.2 3 0.5 1 0.7 0.8 31 0.1 0.5 0.25 0 0.7 0.25 END PWAT-PARM4 PWAT-STATE1 <PLS > *** Initial conditions at start of simulation ran from 1990 to end of 1992 (pat 1-11-95) RUN 21 *** # - # *** CEPS SURS UZS IFWS LZS AGWS GWVS 1 0 0 0 0 3 1 0 4 0 0 0 0 3 1 0 5 0 0 0 0 3 1 0 19 0 0 0 0 4.2 1 0 31 0 0 0 0 3 1 0 END PWAT-STATE1 END PERLND IMPLND GEN-INFO smith residence(3b) 1/3/2015 10:32:42 PM Page 23 <PLS >< Name > Unit-systems Printer *** # - # User t-series Engl Metr *** in out *** END GEN-INFO *** Section IWATER*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # ATMP SNOW IWAT SLD IWG IQAL *** END ACTIVITY PRINT-INFO <ILS > ******** Print-flags ******** PIVL PYR # - # ATMP SNOW IWAT SLD IWG IQAL ********* END PRINT-INFO IWAT-PARM1 <PLS > IWATER variable monthly parameter value flags *** # - # CSNO RTOP VRS VNN RTLI *** END IWAT-PARM1 IWAT-PARM2 <PLS > IWATER input info: Part 2 *** # - # *** LSUR SLSUR NSUR RETSC END IWAT-PARM2 IWAT-PARM3 <PLS > IWATER input info: Part 3 *** # - # ***PETMAX PETMIN END IWAT-PARM3 IWAT-STATE1 <PLS > *** Initial conditions at start of simulation # - # *** RETS SURS END IWAT-STATE1 END IMPLND SCHEMATIC <-Source-> <--Area--> <-Target-> MBLK *** <Name> # <-factor-> <Name> # Tbl# *** Site*** PERLND 1 2 .505 COPY 501 12 PERLND 1 2 .505 COPY 501 13 PERLND 1 2 .505 COPY 501 14 PERLND 4 5.327 COPY 501 12 PERLND 4 5.327 COPY 501 13 PERLND 4 5.327 COPY 501 14 PERLND 5 0.535 COPY 501 12 PERLND 5 0.535 COPY 501 13 PERLND 5 0.535 COPY 501 14 PERLND 19 0.477 COPY 501 12 PERLND 19 0.477 COPY 501 13 PERLND 19 0.477 COPY 501 14 PERLND 31 0.819 COPY 501 12 PERLND 31 0.819 COPY 501 13 PERLND 31 0.819 COPY 501 14 ******Routing****** END SCHEMATIC NETWORK <-Volume-> <-Grp> <-Member-><--Mult-->Tran <-Target vols> <-Grp> <-Member-> *** <Name> # <Name> # #<-factor->strg <Name> # # <Name> # # *** COPY 501 OUTPUT MEAN 1 1 12.1 DISPLY 1 INPUT TIMSER 1 <-Volume-> <-Grp> <-Member-><--Mult-->Tran <-Target vols> <-Grp> <-Member-> *** <Name> # <Name> # #<-factor->strg <Name> # # <Name> # # *** smith residence(3b) 1/3/2015 10:32:42 PM Page 24 END NETWORK RCHRES GEN-INFO RCHRES Name Nexits Unit Systems Printer *** # - #< ><---> User T-series Engl Metr LKFG *** in out *** END GEN-INFO *** Section RCHRES*** ACTIVITY <PLS > ************* Active Sections ***************************** # - # HYFG ADFG CNFG HTFG SDFG GQFG OXFG NUFG PKFG PHFG *** END ACTIVITY PRINT-INFO <PLS > ***************** Print-flags ******************* PIVL PYR # - # HYDR ADCA CONS HEAT SED GQL OXRX NUTR PLNK PHCB PIVL PYR ********* END PRINT-INFO HYDR-PARM1 RCHRES Flags for each HYDR Section *** # - # VC Al A2 A3 ODFVFG for each *** ODGTFG for each FUNCT for each FG FG FG FG possible exit *** possible exit possible exit * * * * * * * * * * * * * * *** END HYDR-PARM1 HYDR-PARM2 # - # FTABNO LEN DELTH STCOR KS DB50 *** < >< >< >< >< >< >< > *** END HYDR-PARM2 HYDR-INIT RCHRES Initial conditions for each HYDR section *** # - # *** VOL Initial value of COLIND Initial value of OUTDGT *** ac-ft for each possible exit for each possible exit >< > <---><---><---><---><---> *** <---><---><---><---><---> END HYDR-INIT END RCHRES SPEC-ACTIONS END SPEC-ACTIONS FTABLES END FTABLES EXT SOURCES <-Volume-> <Member> SsysSgap<--Mult-->Tran <-Target vols> <-Grp> <-Member-> *** <Name> # <Name> # tem strg<-factor->strg <Name> # # <Name> # # *** WDM 2 PREC ENGL 0.8 SUM PERLND 1 999 EXTNL PREC WDM 2 PREC ENGL 0.8 SUM IMPLND 1 999 EXTNL PREC WDM 1 EVAP ENGL 0.76 PERLND 1 999 EXTNL PETINP WDM 1 EVAP ENGL 0.76 IMPLND 1 999 EXTNL PETINP END EXT SOURCES EXT TARGETS <-Volume-> <-Grp> <-Member-><--Mult-->Tran <-Volume-> <Member> Tsys Tgap Amd *** <Name> # <Name> # #<-factor->strg <Name> # <Name> tem strg strg*** COPY 1 OUTPUT MEAN 1 1 12.1 WDM 701 FLOW ENGL REPL COPY 501 OUTPUT MEAN 1 1 12.1 WDM 801 FLOW ENGL REPL END EXT TARGETS MASS-LINK <Volume> <-Grp> <-Member-><--Mult--> <Target> <-Grp> <-Member->*** <Name> <Name> # #<-factor-> <Name> <Name> # #*** MASS-LINK 12 PERLND PWATER SURO 0.083333 COPY INPUT MEAN END MASS-LINK 12 MASS-LINK 13 PERLND PWATER IFWO 0.083333 COPY INPUT MEAN smith residence(3b) 1/3/2015 10:32:42 PM Page 25 END MASS-LINK 13 MASS-LINK 14 PERLND PWATER AGWO 0.083333 COPY INPUT MEAN END MASS-LINK 14 END MASS-LINK END RUN II II II II VIII III smith residence(3b) 1/3/2015 10:32:42 PM Page 26 it Predeveloped HSPF Message File smith residence(3b) 1/3/2015 10:32:42 PM Page 27 l Mitigated HSPF Message File smith residence(3b) 1/3/2015 10:32:42 PM Page 28 Disclaimer Legal Notice This program and accompanying documentation are provided 'as-is' without warranty of any kind. The entire risk regarding the performance and results of this program is assumed by End User. Clear Creek Solutions Inc. and the governmental licensee or sublicensees disclaim all warranties, either expressed or implied, including but not limited to implied warranties of program and accompanying documentation. In no event shall Clear Creek Solutions Inc. be liable for any damages whatsoever (including without limitation to damages for loss of business profits, loss of business information, business interruption, and the like) arising out of the use of, or inability to use this program even if Clear Creek Solutions Inc. or their authorized representatives have been advised of the possibility of such damages. Software Copyright© by : Clear Creek Solutions, Inc. 2005-2013; All Rights Reserved. Clear Creek Solutions, Inc. 6200 Capitol Blvd. Ste F Olympia, WA. 98501 Toll Free 1(866)943-0304 Local (360)943-0304 www.clearcreeksolutions.com smith residence(3b) 1/3/2015 10:32:42 PM Page 29 APPENDIX G Operation&Maintenance Plan of Stormwater Facilities Location Smith Residence Todd Road, Port Ludlow,Washington Introduction The roof drainage system protects your foundations,landscape,and the environment.Periodic maintenance is required to promote performance and longevity. Do not connect foundation or additional surface drains to this system. Drainage from/along gravel areas should be allowed to disperse into the forest duff or vegetated areas. Responsibility The owner is responsible for providing inspections and maintenance of the drainage facilities in a manner that promotes functionality consistent with the designed installation. Hazardous materials The parking areas,gravel drives,and roof dispersion discharge to surface water and ultimately infiltrate.The discharging hazardous materials or liquids into/onto them will contaminate the soil around and"downstream"of them. Some of the subsoil is sandy gravel which could facilitate the spread of a contaminant. Please protect the environment by: - Clean-up small spills immediately - Report large spills and spills to the fire department - Dispose of all debris and waste appropriately Inspections Following major storms or snowfalls inspect system and address any issue before it gets worse. Annual inspections and maintenance should be completed prior to the beginning of the rainy season,Oct 1St thru April 30th.It is recommended that inspections begin on or about August 1 to provide time for maintenance and repair and stabilizing disturbed soil prior to the rainy season. Maintenance Roof gutters: Disconnect downspouts at roof leaders to prevent debris from entering the conveyance system.Clean litter from gutters and test downspouts with water from garden hose. Conveyance System: Flush roof leaders to ensure they are functioning. Clean excessive silt from culverts Remove excess silt from outlet protection riprap. Dispersion Areas: Surface erosion shall be addressed immediately when discovered by reshaping of earth and reseeding and/or placement of rock/stone or other armoring to reduce velocities. Walk entire length of dispersion areas and remove large forest litter and rocks that may cause channelization/erosion. If erosion is evident and no obvious cause can be determined—contact engineer for recommendations. Page 1 of 2 Hard Surface runoff(gravel/pavements/roofs): Runoff from all hard surfaces should be monitored throughout the rainy season.Runoff is intended to sheet-flow to the adjoining vegetated area(s)and not allowed to create concentrated flows-except where shown on plans. If the gravel surface or adjoining vegetated areas degrade,runoff will erode the soils and create channels that could degrade the downstream environment.To minimize this, regular maintenance should include: - Removal of all objects/landforms that promote flow concentration - Grade/shape surfaces to promote sheet flow - Construct rock check dams to reduce velocities,trap sediment, promote"sheet"flow in adjoining vegetated areas - Vegetate/seed/mulch all disturbed areas not stabilized with gravel surfacing. Vegetated Areas: Maintain organic content - Use a mulching mower - Annually spread compost Maintain"sheet flow"of runoff—. - Surface erosion shall be addressed immediately when discovered by reshaping of earth and reseeding and/or placement of rock I stone or other armoring to reduce velocities. - See the 4 elements under Hard Surface runoff above IF HARVESTING ROOF RUNOFF: Open Organic Litter Trap and secure a piece of garden fabric over the outlet pipe flowing to the drywell.Using flow from a garden hose,flush the system at each roof leader. Connect all the downspouts to the roof leaders. Organic Litter Trap: This traps leaf litter and other debris thereby preventing material it from entering the downstream closed system.It should be inspected,cleaned,and repaired as needed. As a minimum this should be done prior to the raining season each year. Harvested Water Storage Tank: Remove vent screen and clean Flush vent with water to ensure it is functioning Ensure access lid is secure Clean debris and silt as needed. Page 2 of 2 APPENDIX H USDA United States A product of the National 9 Custom Soil Resource Department of Cooperative Soil Survey, IIIIIIIIIII A riculture a joint effort of the United Report for RCStates Department of p\ S AgricultuothJefferson C o u n ty Federal agencies, State Natural agencies including the Area, Washington Conservation Resources Agricultural Experiment Stations, and local Service participants Smith I APN 961400004 � E � � . ,r. ',„,- t , ,, ... ' iii....4.40 i .� ; x 1 R 'k" r 14:1414$ ' ' iti'-' ' e. , : .,,, ..#1. ,.,,,,... ,, ,,,,,f: ;At, r ) ,,. $' 4 r ;AA, ,"...7,4t,, - ,,,,, -*,,,.:\., Irill v i • .,4 0, 9' - -4, -*if % xi '' } l F tx�'�r N '1s .' ,� iN is .''„' y Ix e. Y d gym �. " �a ; , 0 - 14.* 4,,,, ' , , . , i 1.g„ ;bt + •�r� xe j�, im* Ile i I I 8,000 ,,r4,.... a, I I I I 1 p' Edited to show Approx Parcel 2015 January 9, Preface Soil surveys contain information that affects land use planning in survey areas. They highlight soil limitations that affect various land uses and provide information about the properties of the soils in the survey areas. Soil surveys are designed for many different users, including farmers, ranchers, foresters, agronomists, urban planners, community officials, engineers, developers, builders, and home buyers. Also, conservationists, teachers, students, and specialists in recreation, waste disposal, and pollution control can use the surveys to help them understand,protect,or enhance the environment. Various land use regulations of Federal, State, and local governments may impose special restrictions on land use or land treatment. Soil surveys identify soil properties that are used in making various land use or land treatment decisions.The information is intended to help the land users identify and reduce the effects of soil limitations on various land uses.The landowner or user is responsible for identifying and complying with existing laws and regulations. Although soil survey information can be used for general farm, local, and wider area planning,onsite investigation is needed to supplement this information in some cases. Examples include soil quality assessments(http://www.nres.usda.gov/wps/portal/ nrcs/main/soils/health/) and certain conservation and engineering applications. For more detailed information, contact your local USDA Service Center(http:// offices.sc.egov.usda.gov/locator/app?agency=nres)or your NRCS State Soil Scientist(http://www.nres.usda.gov/wps/portal/nres/detail/soils/contactus/? cid=nres142p2_053951). Great differences in soil properties can occur within short distances. Some soils are seasonally wet or subject to flooding. Some are too unstable to be used as a foundation for buildings or roads. Clayey or wet soils are poorly suited to use as septic tank absorption fields. A high water table makes a soil poorly suited to basements or underground installations. The National Cooperative Soil Survey is a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local agencies. The Natural Resources Conservation Service (NRCS) has leadership for the Federal part of the National Cooperative Soil Survey. Information about soils is updated periodically. Updated information is available through the NRCS Web Soil Survey, the site for official soil survey information. The U.S. Department of Agriculture(USDA)prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal,or because all or a part of an individual's income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require alternative means 2 for communication of program information (Braille, large print, audiotape, etc.)should contact USDA's TARGET Center at(202) 720-2600 (voice and TDD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410 or call (800) 795-3272 (voice) or(202)720-6382 (TDD). USDA is an equal opportunity provider and employer. 3 Contents Preface 2 Soil Map 5 Soil Map 6 Legend 7 Map Unit Descriptions 8 Jefferson County Area, Washington 10 AIC—Alderwood gravelly sandy loam, 0 to 15 percent slopes 10 Soil Information for All Uses 11 Soil Reports 11 Soil Physical Properties 11 Engineering Properties 11 Physical Soil Properties 15 Particle Size and Coarse Fragments 19 Water Features 21 Water Features 21 References 24 4 Soil Map The soil map section includes the soil map for the defined area of interest, a list of soil map units on the map and extent of each map unit, and cartographic symbols displayed on the map. Also presented are various metadata about data used to produce the map, and a description of each soil map unit. 5 A 1 2 z 5308390 5308450 5308510 5308570 5308630 5308690 122°42 54"w 1220 42'54"W o O a I 6 ( N r o w S O g U8 1 D s LI . ,ti i.+a" 'tea M a " ♦ p N N fD V " YR AAV 3�e'. O N Z H. r N o$ O O cn = N i CD v O C n N N N 8 m • 0 • tea,, Y °yyp N § N 4 N V V O p O a O NW_ W 122°42 2T'W ° 8 122°42'2T'W 5308390 5308450 5308510 5308570 5308630 5308690 1 el lN. 2 2 o m :: o o rn O ` C O@ N O N (�pp U� 0) N N a) N y ` N 8 0 !n O N �N•�_ 8o5' sc� a a> v CO N Q 3 o as ccTic°ia� 2m ilU I a 8 e° a E co = m 8 N cY a) Z N C o N 'o ° ` L a) -0 0 .L °. u°1 Q o ai as 0 E a m N a) m C M w a N = co a7 C a) N a) N N N C') N aa))O o co a) N '0 0 c o w s w a)< 3 ( o )E o o. c ZN N a3 • Z � N E c4 CO O p .ay E U .`�W a. m 0 6 QM o .2 3 N m •• Q Q.+t.+ ° L a) N C O-L N f/) O. , O- C u1 N 3 a N v Q ° N p N ° O c ° o 0 Q a O 3 a) a) 0 o fn rn p ._ y >to o c a) C as U o o E ? CO LL N c .m N� o CO`� • Za ° y o o o c °i n a) m E -0 ? a o o ai N a, arr� ° N o m ° ` •°- m � a a) T A o"O C a7 a co co a) Q t`) o N 0 a) ii O T a) N'O a) uvi m - Z 0 V ° N'° a) d y E a)Q V as N « a) ° -J co N 0.C N V) � a) �) L - N•@ a f6 ° f0 > ZEE � nQ ° m c CO rn ° w ° w N O E C E s .gyp T.a). L N a) m y io :a N E O•m y C N O .0 C N •0- Z >, a) L 0 a)`- CO o N Q CO •� o "O c OO •o I--. M pc co � 3 ° o v Qo w m oa 'w N a) � 8 a E � o a) E c m 7 c 7 o a> m C a, am u'-° c _ O) a) a) is ° '� C O` O y O �O ` < O. f0 0 v 7 o .` rn� Ew � w �� v � � `-° oar ci) a'i `° °1 r °� a�io N a) ns O m m a) N N U N > - — as o E as p C .Ncao (1) cc) omo Ca 2. - .0 a) o ° •o mo . EmE I- w E au, a E cns0 2 `o.a ¢ 0 1-- .-5 cncn v) o o '. ►- 0 E ) t 0 0. a) CC a) U 7 O co a) N- CC ll0^^ vJ `) N C 7 f0 c a- C la O O_ a co U .c CO rn T C C = N "O 'NO ° CO U N O O J 0)) N N 0 0 L a T 5 �n m E :° o cc cc a c `m '0 c E a o m o. ° 0 m L a N c 'm w m E c� `m a) U) > O u) E in o _ D 2 - < CI 16 a c d r Z a Q IS * .< u_ a !Li m� 3 ■ w J .-. N CI- c m N Q O a co N 0 o o d 2 � c a a y a E = a)a)•2 r . w a a) o a m Lu a m = m 3 CO O O- ' . y c a a a a a 0 a 0 ` _ = o n a a i 0 O t ? Custom Soil Resource Report Map Unit Descriptions The map units delineated on the detailed soil maps in a soil survey represent the soils or miscellaneous areas in the survey area. The map unit descriptions, along with the maps, can be used to determine the composition and properties of a unit. A map unit delineation on a soil map represents an area dominated by one or more major kinds of soil or miscellaneous areas. A map unit is identified and named according to the taxonomic classification of the dominant soils. Within a taxonomic class there are precisely defined limits for the properties of the soils.On the landscape, however, the soils are natural phenomena, and they have the characteristic variability of all natural phenomena. Thus, the range of some observed properties may extend beyond the limits defined for a taxonomic class. Areas of soils of a single taxonomic class rarely, if ever, can be mapped without including areas of other taxonomic classes. Consequently, every map unit is made up of the soils or miscellaneous areas for which it is named and some minor components that belong to taxonomic classes other than those of the major soils. Most minor soils have properties similar to those of the dominant soil or soils in the map unit, and thus they do not affect use and management. These are called noncontrasting, or similar, components. They may or may not be mentioned in a particular map unit description. Other minor components, however, have properties and behavioral characteristics divergent enough to affect use or to require different management.These are called contrasting,or dissimilar,components.They generally are in small areas and could not be mapped separately because of the scale used. Some small areas of strongly contrasting soils or miscellaneous areas are identified by a special symbol on the maps. If included in the database for a given area, the contrasting minor components are identified in the map unit descriptions along with some characteristics of each. A few areas of minor components may not have been observed, and consequently they are not mentioned in the descriptions, especially where the pattern was so complex that it was impractical to make enough observations to identify all the soils and miscellaneous areas on the landscape. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The objective of mapping is not to delineate pure taxonomic classes but rather to separate the landscape into landforms or landform segments that have similar use and management requirements. The delineation of such segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, however, onsite investigation is needed to define and locate the soils and miscellaneous areas. An identifying symbol precedes the map unit name in the map unit descriptions. Each description includes general facts about the unit and gives important soil properties and qualities. Soils that have profiles that are almost alike make up a soil series. Except for differences in texture of the surface layer, all the soils of a series have major horizons that are similar in composition, thickness, and arrangement. Soils of one series can differ in texture of the surface layer, slope, stoniness, salinity, degree of erosion, and other characteristics that affect their use. On the basis of such differences, a soil series is divided into soil phases. Most of the areas shown on the detailed soil maps are phases of soil series. The name of a soil phase commonly 8 Custom Soil Resource Report indicates a feature that affects use or management. For example, Alpha silt loam, 0 to 2 percent slopes, is a phase of the Alpha series. Some map units are made up of two or more major soils or miscellaneous areas. These map units are complexes, associations, or undifferentiated groups. A complex consists of two or more soils or miscellaneous areas in such an intricate pattern or in such small areas that they cannot be shown separately on the maps.The pattern and proportion of the soils or miscellaneous areas are somewhat similar in all areas. Alpha-Beta complex, 0 to 6 percent slopes, is an example. An association is made up of two or more geographically associated soils or miscellaneous areas that are shown as one unit on the maps. Because of present or anticipated uses of the map units in the survey area, it was not considered practical or necessary to map the soils or miscellaneous areas separately. The pattern and relative proportion of the soils or miscellaneous areas are somewhat similar. Alpha- Beta association, 0 to 2 percent slopes, is an example. An undifferentiated group is made up of two or more soils or miscellaneous areas that could be mapped individually but are mapped as one unit because similar interpretations can be made for use and management. The pattern and proportion of the soils or miscellaneous areas in a mapped area are not uniform. An area can be made up of only one of the major soils or miscellaneous areas, or it can be made up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example. Some surveys include miscellaneous areas. Such areas have little or no soil material and support little or no vegetation. Rock outcrop is an example. 9 Custom Soil Resource Report Jefferson County Area, Washington AIC—Alderwood gravelly sandy loam, 0 to 15 percent slopes Map Unit Setting National map unit symbol: 2gpl Elevation: 50 to 800 feet Mean annual precipitation: 25 to 60 inches Mean annual air temperature: 48 to 52 degrees F Frost-free period: 180 to 220 days Farmland classification: Farmland of statewide importance Map Unit Composition Alderwood and similar soils: 100 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Alderwood Setting Landform: Terraces Parent material: Basal till with a component of volcanic ash in the upper part Typical profile H1 -0 to 3 inches: gravelly sandy loam H2-3 to 30 inches: very gravelly loam H3-30 to 60 inches: gravelly sandy loam Properties and qualities Slope: 0 to 15 percent Depth to restrictive feature: 20 to 40 inches to densic material Natural drainage class: Moderately well drained Capacity of the most limiting layer to transmit water(Ksat): Very low to moderately low(0.00 to 0.06 in/hr) Depth to water table: About 18 to 36 inches Frequency of flooding: None Frequency of ponding: None Available water storage in profile: Very low(about 2.5 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 4s Hydrologic Soil Group: B Other vegetative classification: Limited Depth Soils (G002XN302WA) 10 Soil Information for All Uses Soil Reports The Soil Reports section includes various formatted tabular and narrative reports (tables)containing data for each selected soil map unit and each component of each unit. No aggregation of data has occurred as is done in reports in the Soil Properties and Qualities and Suitabilities and Limitations sections. The reports contain soil interpretive information as well as basic soil properties and qualities. A description of each report(table) is included. Soil Physical Properties This folder contains a collection of tabular reports that present soil physical properties. The reports(tables)include all selected map units and components for each map unit. Soil physical properties are measured or inferred from direct observations in the field or laboratory. Examples of soil physical properties include percent clay, organic matter, saturated hydraulic conductivity, available water capacity, and bulk density. Engineering Properties This table gives the engineering classifications and the range of engineering properties for the layers of each soil in the survey area. Hydrologic soil group is a group of soils having similar runoff potential under similar storm and cover conditions.The criteria for determining Hydrologic soil group is found in the National Engineering Handbook, Chapter 7 issued May 2007(http:// directives.sc.egov.usda.gov/OpenNonWebContent.aspx?content=17757.wba). Listing HSGs by soil map unit component and not by soil series is a new concept for the engineers. Past engineering references contained lists of HSGs by soil series. Soil series are continually being defined and redefined, and the list of soil series names changes so frequently as to make the task of maintaining a single national list virtually impossible. Therefore, the criteria is now used to calculate the HSG using the component soil properties and no such national series lists will be maintained.All such references are obsolete and their use should be discontinued. Soil properties that influence runoff potential are those that influence the minimum rate of infiltration for a bare soil after prolonged wetting and when not frozen. These properties are depth to a seasonal high water table, saturated hydraulic conductivity after prolonged wetting, and depth to a layer with a very slow water transmission rate. Changes in soil properties caused by land management or climate changes also cause the hydrologic 11 Custom Soil Resource Report soil group to change. The influence of ground cover is treated independently. There are four hydrologic soil groups, A, B, C, and D, and three dual groups, A/D, B/D, and C/D. In the dual groups, the first letter is for drained areas and the second letter is for undrained areas. The four hydrologic soil groups are described in the following paragraphs: Group A. Soils having a high infiltration rate (low runoff potential)when thoroughly wet. These consist mainly of deep, well drained to excessively drained sands or gravelly sands. These soils have a high rate of water transmission. Group B. Soils having a moderate infiltration rate when thoroughly wet. These consist chiefly of moderately deep or deep, moderately well drained or well drained soils that have moderately fine texture to moderately coarse texture. These soils have a moderate rate of water transmission. Group C. Soils having a slow infiltration rate when thoroughly wet. These consist chiefly of soils having a layer that impedes the downward movement of water or soils of moderately fine texture or fine texture. These soils have a slow rate of water transmission. Group D. Soils having a very slow infiltration rate (high runoff potential)when thoroughly wet. These consist chiefly of clays that have a high shrink-swell potential, soils that have a high water table, soils that have a claypan or clay layer at or near the surface, and soils that are shallow over nearly impervious material. These soils have a very slow rate of water transmission. Depth to the upper and lower boundaries of each layer is indicated. Texture is given in the standard terms used by the U.S. Department of Agriculture. These terms are defined according to percentages of sand,silt,and clay in the fraction of the soil that is less than 2 millimeters in diameter. "Loam,"for example, is soil that is 7 to 27 percent clay, 28 to 50 percent silt, and less than 52 percent sand. If the content of particles coarser than sand is 15 percent or more, an appropriate modifier is added, for example, "gravelly." Classification of the soils is determined according to the Unified soil classification system (ASTM, 2005) and the system adopted by the American Association of State Highway and Transportation Officials (AASHTO, 2004). The Unified system classifies soils according to properties that affect their use as construction material. Soils are classified according to particle-size distribution of the fraction less than 3 inches in diameter and according to plasticity index, liquid limit, and organic matter content. Sandy and gravelly soils are identified as GW, GP, GM, GC, SW, SP, SM, and SC; silty and clayey soils as ML, CL, OL, MH, CH, and OH; and highly organic soils as PT. Soils exhibiting engineering properties of two groups can have a dual classification, for example, CL-ML. The AASHTO system classifies soils according to those properties that affect roadway construction and maintenance. In this system, the fraction of a mineral soil that is less than 3 inches in diameter is classified in one of seven groups from A-1 through A-7 on the basis of particle-size distribution, liquid limit, and plasticity index. Soils in group A-1 are coarse grained and low in content of fines(silt and clay).At the other extreme, soils in group A-7 are fine grained. Highly organic soils are classified in group A-8 on the basis of visual inspection. If laboratory data are available, the A-1, A-2, and A-7 groups are further classified as A-1-a, A-1-b,A-2-4,A-2-5, A-2-6,A-2-7,A-7-5, orA-7-6.As an additional refinement, the suitability of a soil as subgrade material can be indicated by a group index number. 12 Custom Soil Resource Report Group index numbers range from 0 for the best subgrade material to 20 or higher for the poorest. Rock fragments larger than 10 inches in diameter and 3 to 10 inches in diameter are indicated as a percentage of the total soil on a dry-weight basis. The percentages are estimates determined mainly by converting volume percentage in the field to weight percentage. Percentage (of soil particles)passing designated sieves is the percentage of the soil fraction less than 3 inches in diameter based on an ovendry weight. The sieves, numbers 4, 10, 40, and 200 (USA Standard Series), have openings of 4.76, 2.00, 0.420,and 0.074 millimeters, respectively. Estimates are based on laboratory tests of soils sampled in the survey area and in nearby areas and on estimates made in the field. Liquid limit and plasticity index(Atterberg limits) indicate the plasticity characteristics of a soil. The estimates are based on test data from the survey area or from nearby areas and on field examination. References: American Association of State Highway and Transportation Officials(AASHTO).2004. Standard specifications for transportation materials and methods of sampling and testing. 24th edition. American Society for Testing and Materials(ASTM). 2005. Standard classification of soils for engineering purposes. ASTM Standard D2487-00. 13 m c '9 '9 is•- Z I� Z z a. 1 CL :a a+ 7 U to U) U a) ('-• Q E CL N N N Fa X J = o U) o .c a+ i pO ' 0 O O +' E o 0 o a) (A N N T N +• O 7 L 0 )f) O U Z U) >j LO in O m -I > cloc c I o LO LO LO ca) 0 O 9 O d QNw 5 o 0 o) c0) 0 0 Or N c0 -o a U) Lo to al to N v o = �.mc O .c rn w c r) c 19 1 -Lo )fl I!I (a m o 0 0 a) co - 0 Q o s 0 0 m u. c 0l L- 7 a) 4? ,O ` W N O O 0 N N N U � = C N Q '' Q QI, N L 0 O w Q N ~ O Q Q Q Q CC O O � I o(� DLO R 2 ' 2 2 '' N 0 u) (0 (0 O - U C C 7 E O I,., I_ c E a) E co ,o2a 2 a) a)) •N m v > a) E v' 3 N m m - > ` m m CU c Q in > mo)—° w (6 i. y) •C) 0 >, N 0) >' >, -0 — W 0 ) 0) ) aW � m , a�> 2 � m O 0 0 > 0 as ` Y U o S 0 O G c O (O a) L - a co ? o Co I- C o M M 0 • O -(7) 2 0. c (6 'd 0)O` . a) .c 0 S . pp c ?i •c i j 0 G,,+ 00 0 o rn� w CC _ o owI' a £ ' UN N- it c N c c 0 -- a) 7 ,O c to m Q Z C.)0 m -O >,C !,I E E ca °o c c a 0 0. I m ° o l2) w U a)co To 2 .7 a ' 1 Custom Soil Resource Report Physical Soil Properties This table shows estimates of some physical characteristics and features that affect soil behavior. These estimates are given for the layers of each soil in the survey area. The estimates are based on field observations and on test data for these and similar soils. Depth to the upper and lower boundaries of each layer is indicated. Particle size is the effective diameter of a soil particle as measured by sedimentation, sieving,or micrometric methods. Particle sizes are expressed as classes with specific effective diameter class limits.The broad classes are sand,silt,and clay, ranging from the larger to the smaller. Sand as a soil separate consists of mineral soil particles that are 0.05 millimeter to 2 millimeters in diameter. In this table, the estimated sand content of each soil layer is given as a percentage, by weight, of the soil material that is less than 2 millimeters in diameter. Silt as a soil separate consists of mineral soil particles that are 0.002 to 0.05 millimeter in diameter. In this table, the estimated silt content of each soil layer is given as a percentage, by weight, of the soil material that is less than 2 millimeters in diameter. Clay as a soil separate consists of mineral soil particles that are less than 0.002 millimeter in diameter. In this table, the estimated clay content of each soil layer is given as a percentage, by weight, of the soil material that is less than 2 millimeters in diameter. The content of sand, silt, and clay affects the physical behavior of a soil. Particle size is important for engineering and agronomic interpretations, for determination of soil hydrologic qualities, and for soil classification. The amount and kind of clay affect the fertility and physical condition of the soil and the ability of the soil to adsorb cations and to retain moisture. They influence shrink- swell potential, saturated hydraulic conductivity (Ksat), plasticity, the ease of soil dispersion, and other soil properties. The amount and kind of clay in a soil also affect tillage and earthmoving operations. Moist bulk density is the weight of soil(ovendry)per unit volume.Volume is measured when the soil is at field moisture capacity,that is,the moisture content at 1/3-or 1/10- bar(33kPa or 10kPa) moisture tension. Weight is determined after the soil is dried at 105 degrees C. In the table, the estimated moist bulk density of each soil horizon is expressed in grams per cubic centimeter of soil material that is less than 2 millimeters in diameter. Bulk density data are used to compute linear extensibility, shrink-swell potential, available water capacity, total pore space, and other soil properties. The moist bulk density of a soil indicates the pore space available for water and roots. Depending on soil texture, a bulk density of more than 1.4 can restrict water storage and root penetration. Moist bulk density is influenced by texture, kind of clay, content of organic matter, and soil structure. Saturated hydraulic conductivity(Ksat) refers to the ease with which pores in a saturated soil transmit water. The estimates in the table are expressed in terms of micrometers per second. They are based on soil characteristics observed in the field, particularly structure, porosity, and texture. Saturated hydraulic conductivity (Ksat) is considered in the design of soil drainage systems and septic tank absorption fields. 15 Custom Soil Resource Report Available water capacity refers to the quantity of water that the soil is capable of storing for use by plants. The capacity for water storage is given in inches of water per inch of soil for each soil layer. The capacity varies, depending on soil properties that affect retention of water. The most important properties are the content of organic matter, soil texture, bulk density, and soil structure. Available water capacity is an important factor in the choice of plants or crops to be grown and in the design and management of irrigation systems. Available water capacity is not an estimate of the quantity of water actually available to plants at any given time. Linear extensibility refers to the change in length of an unconfined clod as moisture content is decreased from a moist to a dry state. It is an expression of the volume change between the water content of the clod at 1/3-or 1/10-bar tension (33kPa or 10kPa tension) and oven dryness. The volume change is reported in the table as percent change for the whole soil. The amount and type of clay minerals in the soil influence volume change. Linear extensibility is used to determine the shrink-swell potential of soils.The shrink- swell potential is low if the soil has a linear extensibility of less than 3 percent;moderate if 3 to 6 percent; high if 6 to 9 percent; and very high if more than 9 percent. If the linear extensibility is more than 3, shrinking and swelling can cause damage to buildings, roads, and other structures and to plant roots. Special design commonly is needed. Organic matter is the plant and animal residue in the soil at various stages of decomposition. In this table, the estimated content of organic matter is expressed as a percentage, by weight,of the soil material that is less than 2 millimeters in diameter. The content of organic matter in a soil can be maintained by returning crop residue to the soil. Organic matter has a positive effect on available water capacity,water infiltration, soil organism activity, and tilth. It is a source of nitrogen and other nutrients for crops and soil organisms. Erosion factors are shown in the table as the K factor(Kw and Kf)and the T factor. Erosion factor K indicates the susceptibility of a soil to sheet and rill erosion by water. Factor K is one of six factors used in the Universal Soil Loss Equation(USLE)and the Revised Universal Soil Loss Equation (RUSLE)to predict the average annual rate of soil loss by sheet and rill erosion in tons per acre per year. The estimates are based primarily on percentage of silt,sand,and organic matter and on soil structure and Ksat. Values of K range from 0.02 to 0.69. Other factors being equal, the higher the value, the more susceptible the soil is to sheet and rill erosion by water. Erosion factor Kw indicates the erodibility of the whole soil.The estimates are modified by the presence of rock fragments. Erosion factor Kf indicates the erodibility of the fine-earth fraction, or the material less than 2 millimeters in size. Erosion factor T is an estimate of the maximum average annual rate of soil erosion by wind and/or water that can occur without affecting crop productivity over a sustained period. The rate is in tons per acre per year. Wind erodibility groups are made up of soils that have similar properties affecting their susceptibility to wind erosion in cultivated areas.The soils assigned to group 1 are the most susceptible to wind erosion, and those assigned to group 8 are the least susceptible. The groups are described in the"National Soil Survey Handbook." Wind erodibility index is a numerical value indicating the susceptibility of soil to wind erosion, or the tons per acre per year that can be expected to be lost to wind erosion. 16 Custom Soil Resource Report There is a close correlation between wind erosion and the texture of the surface layer, the size and durability of surface clods, rock fragments, organic matter, and a calcareous reaction. Soil moisture and frozen soil layers also influence wind erosion. Reference: United States Department of Agriculture, Natural Resources Conservation Service. National soil survey handbook, title 430-VI. (http://soils.usda.gov) 17 P. m mi11 in 11 C 3 O E N M C.) co C Y - M W N u ` O 1 • Q O M O '�. D E M o o�'I o C ) =- a J c33 03 rn N 1 N N 0 m •C) O O O O O • G O j a) , V c �0 3 0 0 1 p C Q 0 ', 0 °o ° CO N O oI a) a) 0 O_ > co,O w 5 N N NV( 7 d O °E d C U N >+ O i 13 0 I O O O C /1Z O v vN O i a. p ° o 0 A. • M U • N co O 0 w- I 0. I to a ' ao- ' ao 1 ao FIS a1 N V N C U I eu 0- 1 t0 COO Q �I M 0 °CD 1 O M M N T 1 G E a N — I0 O. I, I. co 0 n � I iE C O O I> C y N o Q N > E � .lab vm ° 0w 2 I UQrn— a 2 49 Q I Q 1 Custom Soil Resource Report Particle Size and Coarse Fragments This table shows estimates of particle size distribution and coarse fragment content of each soil in the survey area. The estimates are based on field observations and on test data for these and similar soils. Depth to the upper and lower boundaries of each layer is indicated. Particle size is the effective diameter of a soil particle as measured by sedimentation, sieving, or micrometric methods. Particle sizes are expressed as classes with specific effective diameter class limits.The broad classes are sand,silt,and clay, ranging from the larger to the smaller. Sand as a soil separate consists of mineral soil particles that are 0.05 millimeter to 2 millimeters in diameter. In this table, the estimated sand content of each soil layer is given as a percentage, by weight, of the soil material that is less than 2 millimeters in diameter. Silt as a soil separate consists of mineral soil particles that are 0.002 to 0.05 millimeter in diameter. In this table, the estimated silt content of each soil layer is given as a percentage, by weight, of the soil material that is less than 2 millimeters in diameter. Clay as a soil separate consists of mineral soil particles that are less than 0.002 millimeter in diameter. In this table, the estimated clay content of each soil layer is given as a percentage, by weight, of the soil material that is less than 2 millimeters in diameter. The content of sand, silt, and clay affects the physical behavior of a soil. Particle size is important for engineering and agronomic interpretations, for determination of soil hydrologic qualities, and for soil classification. The amount and kind of clay affect the fertility and physical condition of the soil and the ability of the soil to adsorb cations and to retain moisture. They influence shrink- swell potential, saturated hydraulic conductivity (Ksat), plasticity, the ease of soil dispersion, and other soil properties. The amount and kind of clay in a soil also affect tillage and earthmoving operations. Total fragments is the content of fragments of rock and other materials larger than 2 millimeters in diameter on volumetric basis of the whole soil. Fragments 2-74 mm refers to the content of coarse fragments in the 2 to 74 millimeter size fraction. Fragments 75-249 mm refers to the content of coarse fragments in teh 75 to 249 millimeter size fraction. Fragments 250-599 mm refers to the content of coarse fragments in the 250 to 599 millimeter size fraction. Fragments>=600 mm refers to the content of coarse fragments in the greater than or equal to 600 millimeter size fraction. Reference: United States Department of Agriculture, Natural Resources Conservation Service. National soil survey handbook, title 430-VI. (http://soils.usda.gov) 19 S3 E m E a to (It LL A I I I ' E c E ts Ecu• a LL N N U c E E Et cm C LL O I N Cr CSI c v T CO N CO cE a E E E Et a O O LL N III M N V Et c c 2 3 E E a N Ct C (V c co U) N t0)) N E . a T 7 E W = O O I O V 0 V J V U) U ' ui R N ; U I'I m (A a V u) V C) N N (5 - 13 2 us co• �a 0) l 0) J(0 V I (0 dli � O 0 (0-2 iii fO') O M M C O N 0 • N M _ _ =_I 'O v T CO 006 0 0 C•- 0- m • oI .O W J2 (6 E C v TO c 00 T a I E m 2 Custom Soil Resource Report Water Features This folder contains tabular reports that present soil hydrology information.The reports (tables) include all selected map units and components for each map unit. Water Features include ponding frequency, flooding frequency, and depth to water table. Water Features This table gives estimates of various soil water features. The estimates are used in land use planning that involves engineering considerations. Hydrologic soil groups are based on estimates of runoff potential. Soils are assigned to one of four groups according to the rate of water infiltration when the soils are not protected by vegetation, are thoroughly wet, and receive precipitation from long- duration storms. The four hydrologic soil groups are: Group A. Soils having a high infiltration rate (low runoff potential)when thoroughly wet. These consist mainly of deep, well drained to excessively drained sands or gravelly sands. These soils have a high rate of water transmission. Group B. Soils having a moderate infiltration rate when thoroughly wet. These consist chiefly of moderately deep or deep, moderately well drained or well drained soils that have moderately fine texture to moderately coarse texture. These soils have a moderate rate of water transmission. Group C. Soils having a slow infiltration rate when thoroughly wet. These consist chiefly of soils having a layer that impedes the downward movement of water or soils of moderately fine texture or fine texture. These soils have a slow rate of water transmission. Group D. Soils having a very slow infiltration rate (high runoff potential)when thoroughly wet. These consist chiefly of clays that have a high shrink-swell potential, soils that have a high water table, soils that have a claypan or clay layer at or near the surface, and soils that are shallow over nearly impervious material. These soils have a very slow rate of water transmission. If a soil is assigned to a dual hydrologic group (A/D, B/D, or C/D), the first letter is for drained areas and the second is for undrained areas. Surface runoff refers to the loss of water from an area by flow over the land surface. Surface runoff classes are based on slope,climate,and vegetative cover.The concept indicates relative runoff for very specific conditions. It is assumed that the surface of the soil is bare and that the retention of surface water resulting from irregularities in the ground surface is minimal.The classes are negligible,very low, low, medium,high, and very high. The months in the table indicate the portion of the year in which a water table, ponding, and/or flooding is most likely to be a concern. Water table refers to a saturated zone in the soil. The water features table indicates, by month, depth to the top(upper limit)and base(lower limit)of the saturated zone in most years. Estimates of the upper and lower limits are based mainly on observations of the water table at selected sites and on evidence of a saturated zone, namely 21 Custom Soil Resource Report grayish colors or mottles (redoximorphic features) in the soil. A saturated zone that lasts for less than a month is not considered a water table. Ponding is standing water in a closed depression. Unless a drainage system is installed, the water is removed only by percolation, transpiration, or evaporation. The table indicates surface water depth and the duration and frequency of ponding. Duration is expressed as very brief if less than 2 days, brief if 2 to 7 days, long if 7 to 30 days, and very long if more than 30 days. Frequency is expressed as none, rare, occasional, and frequent. None means that ponding is not probable; rare that it is unlikely but possible under unusual weather conditions (the chance of ponding is nearly 0 percent to 5 percent in any year); occasional that it occurs, on the average, once or less in 2 years (the chance of ponding is 5 to 50 percent in any year); and frequent that it occurs, on the average, more than once in 2 years (the chance of ponding is more than 50 percent in any year). Flooding is the temporary inundation of an area caused by overflowing streams, by runoff from adjacent slopes, or by tides. Water standing for short periods after rainfall or snowmelt is not considered flooding, and water standing in swamps and marshes is considered ponding rather than flooding. Duration and frequency are estimated. Duration is expressed as extremely brief if 0.1 hour to 4 hours, very brief if 4 hours to 2 days, brief if 2 to 7 days, long if 7 to 30 days, and very long if more than 30 days. Frequency is expressed as none, very rare, rare, occasional, frequent, and very frequent. None means that flooding is not probable; very rare that it is very unlikely but possible under extremely unusual weather conditions (the chance of flooding is less than 1 percent in any year); rare that it is unlikely but possible under unusual weather conditions(the chance of flooding is 1 to 5 percent in any year); occasional that it occurs infrequently under normal weather conditions(the chance of flooding is 5 to 50 percent in any year); frequent that it is likely to occur often under normal weather conditions(the chance of flooding is more than 50 percent in any year but is less than 50 percent in all months in any year); and very frequent that it is likely to occur very often under normal weather conditions(the chance of flooding is more than 50 percent in all months of any year). The information is based on evidence in the soil profile, namely thin strata of gravel, sand,silt,or clay deposited by floodwater;irregular decrease in organic matter content with increasing depth; and little or no horizon development. Also considered are local information about the extent and levels of flooding and the relation of each soil on the landscape to historic floods. Information on the extent of flooding based on soil data is less specific than that provided by detailed engineering surveys that delineate flood-prone areas at specific flood frequency levels. 22 I 1 1 c a) p) a.Q a) a) a) a) a) a) a) a) a) a) a) a c c c c c c c c c c c c C U.. 0 0 0 0 0 0 0 0 0 0 0 0 $ Z Z Z Z Z Z ZZ Z Z Z ' O • O I I I I I III I I I I III 4.)C) m c N co d a a) a a) a) a) 0 a) a a a) a) C C C c c C C c I C C C C U. 0 0 0 Q z z `zz z z zi zZ Zi Z1Z L C a) c o c E a° I III I1 I I III ' Ia I I I 0 c C d N a, R 'S. li 1! U 0 O o 3 I I I I I I I I 11 I I I I a •- a)CC ) e E 1 co a N p 4.' 0 M I M co I = - 7 .0 C co M M Ili 1 ,- I I I I I I I I I M w C../ m + .- _I O J I n r� N � N 0' N 0 .• LI N ° I E M M 0.c I1 I '` O 1+'6 N N CU 3 c -0 1- > c >, rn 11 a o > 111 "CS ca ri ! 2 '' Q 2 1 � -, < U) O Z 0 11 as a) N 1 co q° I a 1 1 • m 1 I 1 I w 1 c m a p = O �' O 1 C v0, a) >. I C _ m t T C) ' = N C a) > f` - ' as 0)o ac 0 I as v c I -0o , 0II 0 1 a I c a w g _a gym Q ,1 1 I1I -I References American Association of State Highway and Transportation Officials(AASHTO).2004. Standard specifications for transportation materials and methods of sampling and testing. 24th edition. American Society for Testing and Materials(ASTM). 2005. Standard classification of soils for engineering purposes. ASTM Standard D2487-00. Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of wetlands and deep-water habitats of the United States. U.S. Fish and Wildlife Service FWS/OBS-79/31. Federal Register. July 13, 1994. Changes in hydric soils of the United States. Federal Register. September 18, 2002. Hydric soils of the United States. Hurt,G.W.,and L.M.Vasilas,editors.Version 6.0,2006. Field indicators of hydric soils in the United States. National Research Council. 1995. Wetlands: Characteristics and boundaries. Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service. U.S. Department of Agriculture Handbook 18. http://www.nres.usda.gov/wps/portal/nres/ detail/national/soils/?cid=nres 142p2_054262 Soil Survey Staff. 1999. Soil taxonomy:A basic system of soil classification for making and interpreting soil surveys. 2nd edition. Natural Resources Conservation Service, U.S. Department of Agriculture Handbook 436. http://www.nres.usda.gov/wps/portal/ nres/detail/national/soils/?cid=nres142p2_053577 Soil Survey Staff. 2010. Keys to soil taxonomy. 11th edition. U.S. Department of Agriculture, Natural Resources Conservation Service. http://www.nres.usda.gov/wps/ portal/nres/detail/national/soils/?cid=nres142p2_053580 Tiner, R.W., Jr. 1985. Wetlands of Delaware. U.S. Fish and Wildlife Service and Delaware Department of Natural Resources and Environmental Control, Wetlands Section. United States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of Engineers wetlands delineation manual. Waterways Experiment Station Technical Report Y-87-1. United States Department of Agriculture, Natural Resources Conservation Service. National forestry manual. http://www.nres.usda.gov/wps/portal/nres/detail/soils/ home/?cid=nres142p2_053374 United States Department of Agriculture, Natural Resources Conservation Service. National range and pasture handbook. http://www.nrcs.usda.gov/wps/portal/nrcs/ detail/national/landuse/rangepasture/?cid=stelprdb1043084 24 V Custom Soil Resource Report United States Department of Agriculture, Natural Resources Conservation Service. National soil survey handbook, title 430-VI. http://www.nres.usda.gov/wps/portal/ nres/detail/soils/scientists/?cid=nres142p2_054242 United States Department of Agriculture, Natural Resources Conservation Service. 2006. Land resource regions and major land resource areas of the United States, the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook 296. http://www.n res.usda.gov/wps/portal/nres/detail/national/soils/? cid=nres142p2_053624 United States Department of Agriculture, Soil Conservation Service. 1961. Land capability classification. U.S. Department of Agriculture Handbook 210. http:// www.nres.usda.gov/Internet/FSE_DOCUMENTS/nres142p2_052290.pdf 25 , . 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O Z/AZL( C n II o m z s II-< o 0 I s I I -_-..� Z:, 11 m N y Z° c'...' � 1 -I Z O r o m _` o I-Z s� �o . m r Z C, _7 C7 C �.._/ O N O j \ N Z 0 e> o m-- Fill /) \r m z T.-D n =N o o o �C_ � \/ m No o x C m O c-,C fTI p Oo O 0 O` m m /\\m 9 _ Z r / O - O 4.1 v D x CO Z c z 0 0 c, 0 a n /).).' '''-'7 7•Tila y T E)? -N3., ■ A prepared fa: RICHARD SMITH i PO BOX 65458 q p p p SMITH RESIDENCE ri PORT LUDLOW, WA 98365 d TODD ROAD, PORT LUDLOW, WA PHONE (360) 437-7660 ENGINEERING, SP J APN: 961400004 FAX: 1630 WALNUT STREET (360) 379-9117 STORMWATER DETAILS ` DRAWN: JMW I DESIGNED: JMW I CHECKED: HTA P.O. Box 2094 (360) 460-7311 cell PORT TOWNSEND, WA 98368 hiondersen@q.com `DATE:1/2/15 JOB No: SCALE:AS NOTED SHEET: 7 of 7 J � 1 F t! v ia (4s0N--68\ , ,� 6� J EFFERSON COUNTY I !„ . ID ti �.� DEPARTMENT OF COMMUNITY DEVELOPMENT i ;' JAN i 621 Sheridan Street • Port Townsend • Washington 98368 L, ,_1: qs A..p 360/379-4450 • 360/379-4451 Fax 'INp http://www.co.jefferson.wa.us/commdevelopment/ kJ I 0' G ANTy !_ Cr;iv;UNITYDFVFLOPMFNT STORMWATER SITE PLAN SUBMITTAL TEMPLATE MLA# PROJECT/APPLICANT NAME: Richard Smith Please answer all of the following questions to the best of your ability. Where the question calls for depiction on a site map, the applicant may choose to either incorporate the elements into the general plot plan for the Master Land Use Application or to submit a separate stormwater site plan map. Project Overview 1. Describe the proposed developed conditions of the site. Indicate position and relative size of proposed improvements on the site map. The project is a single-family residence developed in multiple phases. It will include the construction of:a single-family residence and an_ ADU, workshop,barn, an on-site sewage system, water line from an existing well. "wire”utilities. driveway and parking area, and a horse_ pasture. The first phase is expected to be the construction of all utilities,ADU and the pasture Existing Conditions Summary 2. Describe the existing topography. Indicate contours on the site map. The site, which is the eastern 10-acres(approx)of the parcel,is very irregular with undulating slopes ranging between 0 to 15%; with a gross downward slope to the south. 3. Describe the existing vegetation. Indicate native vegetation areas on the site map. Vegetation on the site is the natural successional growth of saplings,shrubs,and grasses that is typical of areas that have been harvested for timbered _ within 10-yrs.It also has a scattering of maturing trees that were not harvested. _ 4. Describe the existing soils. Indicate soil type on the site map. The USDA Natural Resources Conservation Service(NRCS)on-line soil survey for the area indicates the site has a single soil type with the following characteristics.Alderwood(AIC),a gravelly sandy loam.Hydrologic Soil Group: B. Slight potential of erosion(RUSLE2 factor:Kf=0.15),moderately well drained with very low available water. Depth to restrictive feature:20 to 40 inches to densic material,Depth to water table:About 18 to 36 inches — 5. Describe the existing site hydrology (i.e., drainage; behavior of water on the site—above, below, and on the ground). Indicate existing stormwater drainage to and from the site on the site map. Depict separate drainage basins on the site map, if applicable, and indicate acreage of each. The site has two basins. The primary basin encompasses the greatest portion of the site and drains thru what will become a pasture. The second basin — encompasses the northwest portion of the site and receives runoff from the parcel along the north boundary. This basin has had its flow redirected into the primary basin by a logging road that bisects the property along its north-south axis causing excessive flows during heavy storm events.Both basins converge approximately 520-LF south of the parcel's south boundary. — 6. Describe any excess levels of noise generated by the proposed use or activity: During Construction activities and Residential use the noise levels are expected to be typical of those considered normal to the activity/use. stormwater site plan template doc—rev.4/28/2014 5 7. Describe significant geographic features and critical areas (i.e., environmentally sensitive areas such as wetlands, streams, steep slopes, etc.)on the site. Indicate location on the site map. A Type-Fp stream is located approximately 270-ft west of the southwest corner of the parcel and an additional 620-ft from the site. Given the distance from the parcel and site.this is not shown on the map/plans. 8. Describe the general vicinity of the site, including adjacent land uses and structures, utilities, roads, and sensitive/critical areas (streams,wetlands, lakes,steep slopes, etc.). The parcel is Lot 4 of the INGRAM HEIGHTS subdivision, which has RR-20 zoning. It is bound on the: North and south by Lots 3&5 of the subdivision and are developed single-family residential parcels:West by State of Washington-School land that is an- undeveloped RR-20 parcel and contains the Type-Fp stream noted above:and East by Todd Road.a private gravel road that is the access road and utility- corridor for the INGRAM HEIGHTS subdivision. The parcel has a domestic water well in its northeast corner that is shared with the parcel to the north. Permanent Stormwater Control Plan This portion of the Stormwater Site Plan consists of the selection and installation of the appropriate stormwater control BMPs and facilities to remain in place after construction of the project is completed. "Medium" size projects are required to have the totals calculated of all impervious surfaces, pollution-generating impervious surfaces, and pollution-generating pervious surfaces to verify that the thresholds for treatment facilities and flow control facilities are not exceeded. g. Describe the developed site hydrology, as proposed. Indicate whether stormwater will be fully dispersed (i.e., per BMP T5.30 in the Manual) or, if not, what types of stormwater flow control will be utilized for the site or specific threshold discharge areas within the site. Locate these facilities on the site plan and differentiate proposed facilities from existing facilities. Runoff from the northwest basin of the site and the flow from the north will be conveyed using swales adjoining the driveway and dispersed into the undeveloped western portion of the parcel:restoring the natural route of flow for this portion of the parcel. Runoff from the shop and residence will also be - dispersed into the western half of the parcel. Runoff from the pasture will sheet flow southward thru natural vegetation.Runoff from the barn will also be - dispersed southward thru natural vegetation. All impervious surfaces are modeled as"A/B IMP INF FLAT'in the WWHM-2012 and lawn is modeled as _ "Flat Pasture." 10. If the project requires the use of stormwater treatment facilities, describe the types of stormwater treatment facilities proposed for use on the site. Locate these facilities on the site plan and differentiate proposed facilities from existing facilities. [This is normally for"large" projects or projects that involve the potential for dispersion of contaminants.] Runoff quality will be provided thru bio-retention. Specifically,runoff from pollution generating surfaces will be conveyed thru native vegetation consistent with the SWMMWW-2012. 11. Describe the performance goals and standards applicable to the project. Stormwater management for the site will be consistent with the. Stormwater Management Manual for Western Washington 2012 edition(SWMMWW-2012). 12. Describe the flow control system. Not applicable,runoff will be retained on the site as modeled with the WWHM3 LF:j- n P \\,/ E • t- • q iLjj stormwater site plan template doc—rev.4/28/2014 ..L;u 11Y 6 'T.^ COMMUNITY DEVELOPMENT 11, i 13. Describe the water quality system. Ary Runoff from pollution generating surfaces will be conveyed thru native vegetation consistent with the SWMMWW 20.1 4 tipi l®I fhie)pq t,M, potential of exiting the parcel. 14. Describe the conveyance system analysis and design. Runoff is conveyed using swales.culverts,and roof leaders. The low flows that are inherent in the Olympic Mountains''rain shadow",along with the limited sizes of tributary areas of this project,preclude a necessity for designing for capacity. Given the above:pipes and swales are designed —to provide easy maintenance.Further.pipes are sized to reduce the potential of blockage and swales are designed to increase retention. 15. Describe the source of fill material, physical characteristics of fill material, and deposition of excess material. ____"Use specific"materials may be imported from commercial sources for building pads.utility bedding,and driveway surfacing. Topsoil will be _stockpiled and incorporated into open areas of the site. Excess excavated material not suitable for topsoil will be used as common fill within the limits of the site, 16. Proposed methods of placement and compaction consistent with the applicable standards on Appendix Chapter 33 of the Uniform Building Code. As noted in the General Note#2 on the Cover(sheet 1)of the projects plans:All materials and workmanship shall conform to the International Building Code/International Residential Code 2012&the"Standard Specifications For Road. Bridge,And Municipal Construction", —(hereinafter referred to as the standard specifications)Washington State Department Of Transportation and American Public Works Association, Washington Chapter. 2014 Edition,unless specified in this plan or by County Code. 17. Describe the proposed surfacing material. Driveways&parking shall be crushed stone. Garage/shop aprons,patios,and walkways shall be concrete:all other surfacing shall be grass or landscaped. Areas that will be grass covered shall first be fine-graded using the stockpiled topsoil. 18. Describe methods for restoration of the site. The Construction Sequence provided on sheet 2-Stormwater Pollution Prevention Plan details the requirements for completing a Phase of work. 19. An Operation and Maintenance Manual is required for each flow control and treatment facility. [This is normally required for "large"projects only and only those for which facilities are required to control flow or treat runoff.] If included, list the Manuals here. none 20. List here and include any special reports or studies conducted to prepare the Stormwater Site Plan. none 21. List other necessary permits and approvals as required by other regulatory agencies. If those permits or approvals include conditions that affect the drainage plan or contain more restrictive drainage-related requirements, describe those conditions or restrictions here. As a result of disturbing more than 1-acre,a Stormwater Pollution Prevention Plan and Construction Stormwater General Permit is required for this site. The permittee/contractor shall be required to comply with the regulatory conditions explicit for this size/type of project. stormwater site plan template.doc—rev.4/28/2014 7 CONSTRUCTION STORMWATER POLLUTION PREVENTION I1LAN1(sNPPP) The Construction SWPPP addresses sediment and erosion control during construction. The BMPs indicated YY��th rap3plic t i e template that follows must be installed on the ground during all construction phases of the project. Thei tpthponeiit t espori - or preventing sediment and erosion impacts to environmentally sensitive areas and off-site areas, Consult the Construction Sto wa'-r Pollution Prevention (SWPP) Best Management Practices (BMPs) Packet for guidance;-'particularly with„dal resident-I development. SECTION I–CONSTRUCTION SWPPP NARRATIVE 1. Construction Stormwater Pollution Plan Elements. Describe how each of the Construction SWPPP'elements has been or will be addressed. Identify the type and location of BMPs used to satisfy the required element. If an element is not applicable to the proposal,justify in writing. Descriptions of the 12 Elements are found at Volume II Section 3.2.3 of the Manual (beginning on page 3-7). 12 Required Elements– Construction SWPPP 1. Mark Clearing Limits. Sheet 2 of the plan set specifies this requirement in the Construction Sequence and it is shown on the map.Sheets 2, 3,and 4 of the plan— set are specifically developed as a SWPPP and identify areas of concern and specific actions/BMPs to implement thru the lifetime of the project. 2. Establish Construction Access. Not applicable-A Stabilized Construction Access is not require on this project due to the nearest paved surface being greater than 1000-ft from the site. 3. Control Flow Rates. Not applicable-Stormwater will be retained on the site. 4. Install Sediment Controls. Sheet 2 of the plan set specifies this requirement in the Construction Sequence and it is shown on the map. Sheets 2,3.and 4 of the plan set are specifically developed as a SWPPP and identify areas of concern and specific actions/BMPs to implement thru the lifetime of the project. 5. Stabilize Soils. Sheet 2 of the plan set indicates this requirement and sheet 3 provides seeding shedule.Sheets 2, 3,and 4 of the plan set are specifically developed as a SWPPP and identify areas of concern and specific actions/BMPs to implement thru the lifetime of the project. 6. Protect Slopes. work on steep slopes is not expected 7. Protect Drain Inlets. Not applicable-Drain inlets are limited to optional Organic Litter Traps that will be used in-line of a Stormwater Harvesting Facility stormwater site plan template doc—rev.4/28/2014 8 r = %fir= n I 12 Required Elements—Construction SWPPP(continued) i J 8. Stabilize Channels and Outlets. J , i;\ITy As shown on sheet 4-SWPPP details swales shall be stabilized using vegetation. There are no existing chaniiti :1,/hIA NT there channels receiving direct discharge from the pace! 9. Control Pollutants. Sequence item on sheet 2-Stormwater Pollution Plan:Construction#3 specifies the contractor's responsibility to establish Clean Site fueling containment and maintenance areas. 10. Control De-Watering(the act of pumping groundwater or stormwater away from an active construction site). De-watering via pumping is not expected. However,if de-watering is required-2 options are provided. Both include-de-watering is not permitted during storm events:lnstall check dams where shown and pump silty water from excavation to beginning of swale. Install 100-If of 4"perforated pipe-on contour-across upper portion of stabilized/grass covered pasture and pump silty water from excavation. 11. Maintain Best Management Practices(BMPs). Construction Sequence specifies regular&event maintenance requirements 12. Manage the Project. As shown on the SWPPP.a CESCL is required for this project. The CESCL will provide inspections and recommendations regarding the — serviceability of BMPs for compliance with the Construction Stormwater General Permit(CSGP)and make recommendations that the contractor/permittee shall implement. 2. Adjacent Areas. a. Description of the adjacent areas that may be affected by site disturbance (e.g., streams, lakes, wetlands, residential areas, roads). It is bound on the: on the North and south by developed single-family residential parcels,these are Lots 3&5 of the Ingram Heights subdivision: on the West by State of Washington—School land that is an undeveloped RR-20 zoned parcel that has recently had a Forest Practices Act harvest and contains aType-Fp stream:and on the East by Todd Road,a private dirt road. b. Description of the downstream drainage path leading from the site to the receiving body of water(minimum distance of 400 yards). If runoff exits the parcel it will be in shallow consentrated flow and it will either: (A)In the case of the primary drainage basin that contains the project site.runoff will flow to a depression on the parcel to the south. The depression is — the result of the driveway constructed on that parcel.From the depression.runoff will continue in a shallow concentrated flow southward approximately — 520-LF to the point of confluence of the western portion described below.(B)For runoff to and thru the western,forested portion of the property.runoff — will continue southward approximately 450-LF to the point of confluence noted above. _- (AB)From the confluence.runoff will continue approximately 840-If across and thru the next parcel to a Type 4 stream. 3. Environmentally Sensitive Areas. a. Description of environmentally sensitive areas that are on or adjacent to the site. N/A -the nearest ESA is 890-ft west of the site. stormwater site plan template.doc—rev 4/28/2014 9 -=fir Cam,��'. i b. Description of special requirements for working in or near environment sensitive areas;■ N ' - -- . ..• - �t -L-ss oM. 4. Erosion Problem Areas. Description of potential erosion problems on site in the context of the characteristics of the on-site soils(e.g., erodibility, settleability, permeability,depth,texture, soil structure). _THERE ARE NO EROSION PROBLEM AREAS. The USDA Natural Resources Conservation Service(NRCS)on-line soil survey for the area _indicates the site has a single soil type with the following characteristics,Alderwood(AC),a gravelly sandy loam,Hydrologic Soil Group: B. Slight potential of erosion(RUSLE2 factor:Kf=0.15).moderately well drained with very low available water.Depth to restrictive feature:20 to 40 inches to densic material.Depth to water table:About 18 to 36 inches.NOTE:Groundwater was not found during excavating septic soil profile pits. 5. Construction Phasing. a. Construction sequence A detailed Phase/Project Construction Sequence is provided on the SWPPP(sheet 2)of the project plans. b. Construction phasing(if proposed) Proposed phasing is provided on the SWPPP(sheet 2)of the project plans, 6. Construction Schedule. Wet season is October 1 through April 30 (page 2-21 of the Manual). I. Provide a proposed construction schedule. It is recommended that earthwork be performed so that disturbed areas have been stabilized prior to the wet-season. Oct 1st thru April 30th. _ However.given the site is located in a portion of.and benefits from,the Olympic Mountain's rain shadow work may be able to continue. II. Wet Season Construction Activities. a. Proposed wet season construction activities. Construction may be able to continue during the rainy season if approved by the project CESCL. NOTE:Earthwork during the construction season is —known to increase costs,sometimes significantly. b. Proposed wet season construction activities for environmentally sensitive areas. —N/A-there are no ESA in the area of work. 7. Financial/Ownership Responsibilities. a. Identify the property owner responsible for the initiation of bonds and/or other financial securities. PROPERTY OWNER:Richard Smith.PO Box 65458.Port Ludlow, WA 98365-8746 b. Describe bonds and/or other evidence of financial responsibility for liability associated with erosion and sedimentation impacts. 8. Engineering Calculations. Provide Design Calculations on a separate sheet for the following, if applicable. a. Sediment Ponds/Traps. b. Diversions. c. Waterways. d. Runoff/Stormwater Detention Calculations WWHM-2012 stormwater site plan template doc—rev.4/28/2014 10 SECTION II—EROSION AND SEDIMENT CONTROL PLAN Sediment and erosion control measures may be depicted on the master land use application plot plan, a stormwater site plan, and/or a separate Construction SWPPP site plan. This is a checklist to ensure that the following are depicted 1. General. a. Vicinity Map b. Jefferson County Approval Block +I c. Erosion and Sediment Control Notes :/ 2. Site Plan. r/ a. Legal description of subject property. „",i,Y".VIP"CFfiT____ b. North arrow. c. Indicate boundaries of existing vegetation (e.g.,tree lines, pasture areas, etc.). d. Identify and label areas of potential erosion problems. e. Identify FEMA base flood boundaries and Shoreline Management boundaries(if applicable). f. Show existing and proposed contours. g. Indicate drainage basins and direction of flow for individual drainage areas. h. Label final grade contours and identify developed condition drainage basins. i. Delineate areas that are to be cleared and graded. j. Show all cut and fill slopes indicating top and bottom of slope catch lines. 3. Conveyance Systems. a. Designate locations for swales, interceptor trenches, or ditches. b. Show all temporary and permanent drainage pipes, ditches,or cut-off trenches required for erosion&sediment control. c. Provide minimum slope and cover for all temporary pipes or call out pipe inverts. d. Shows grades, dimensions, and direction of flow in all ditches, swales, culverts and pipes. e. Provide details for bypassing off-site runoff around disturbed areas. f. Indicate locations and outlets of any dewatering systems. 4. Location of Detention Best Management Practices(BMPs). Identify location of detention BMPs. 5. Erosion and Sediment Control Facilities. a. Show the locations of sediment trap(s), pond(s), pipes and structures. b. Dimension pond berm widths and inside and outside pond slopes. c. Indicate the trap/pond storage required and the depth, length,and width dimensions. d. Provide typical section views through pond and outlet structure. e. Provide typical details of gravel cone and standpipe, and/or other filtering devices. f. Detail stabilization techniques for outlet/inlet. g. Detail control/restrictor device location and details. h. Specify mulch and/or recommended cover of berms and slopes. i. Provide rock specifications and detail for rock check dam(s), if applicable. j. Specify spacing for rock check dams as required. k. Provide front and side sections of typical rock check dams. I. Indicate the locations and provide details and specifications for silt fabric. m. Locate the construction entrance and provide a detail. 6. Detailed Drawings. Any structural practices used that are not referenced in the Ecology Manual should be explained and illustrated with detailed drawings. 7. Other Pollutant BMPs. Indicate on the site plan the locations of BMPs to be used for the control of pollutants other than sediment(e.g., concrete wash water). 8. Monitoring Locations. Indicate on the site plan the water quality sampling locations to be used for monitoring water quality on the construction site. Sampling stations should be located upstream and downstream of the project site. stormwater site plan template.doc—rev 4/28/2014 11 Stormwater Site Plan Changes If the designer wishes to make changes or revisions to the originally approved Stormwater Site Plan, the proposed revisions shall be submitted to DCD prior to construction. The submittal shall include substitute pages that include all proposed changes, revised drawings showing any structural changes, and any other supporting information that explains and supports the reason for the change. Final Corrected Plan Submittal If the project included construction of conveyance systems, treatment facilities, flow control facilities, or structural source control BMPs (not standard on-site stormwater management BMPs), the applicant shall submit a final corrected plan ("as-builts")when the project is completed. These should be engineering drawings (stamped by a licensed civil engineer) that accurately represent the project as constructed. APPLICANT SIGNATURE By signing the Construction SWPPP worksheet, I as the applicant/owner attest that the information provided herein is true and correct to the best of my,knowlede. I also cef tify that this application is being made with the full knowledge and consent of all owners r t e afffcted prdpr tr E! (LAND el'NE-R OR AUTHORIZED REPRESENTATIVE SIGNATURE) (DATE) THIS SPACE MAY BE USED FOR ADDITIONAL NOTES. IF NEEDED: stormwater site plan template.doc—rev.4/28/2014 12 Parcel Details Page 1 of 2 Jefferson County *- ,...Weathei,itaVon .1 ''Kr..,:::Database Tears "'Hita-0- -.,,,ft iiki.:_tisvieticairt ,_. , Home County Info Departments Search Parcel Number: 1961400004 I SEARCH 1 Parcel Number: '961400004 Printer Friendly Owner Mailing Address: RICHARD SMITH PO BOX 65458 PORT LUDLOW WA98365-8746 m, Site Address: , e-i -- Section: 8 School District: Chimacum (49) Qtr Section: NW1/4 Fire Dist: Port Ludlow (3) Township: 28N Tax Status: Taxable Range: 1E Tax Code: 0231 Planning area: Port Ludlow (7) Sub Division: 9614 - INGRAM HEIGHTS Assessor's Land Use Code: 9500 - Open Space Timber (T) Property Description: INGRAM HEIGHTS LOT 4 Tax. AN, Sa es, Photos, and Permit Data Bldg Data Map Parcel lats&Surveys , I 1 Septic g-4 Info Jefferson County , , t, HOME I COUNTY INFO I DEPARTMENTS I SEARCH Best viewed with Microsoft Internet Explorer 6.0 or later Windows- Mac 5/2/ ( „ 4, 14411•••■,c, I ) ...)/./ 1 CI i-v 1k Up Front Parcel Review Parcel 961400004 Printed: January 23, 2015 RICHARD SMITH Site Address(es): PO BOX 65458 TODD RD , WA PORT LUDLOW, WA 98365-8746 Parcel Number: 961400004 S-T-R: 8-28N-1E Total Acreage 19 Legal Description INGRAM HEIGHTS LOT 4 Land Use: 9500 Flood District: Fire District: 3 Planning Area: 7 Flood Map(FIRM)Panel No: School District 49 Zoning: ti,a-O COMP PLAN DESIGNATION: CO.IMUNITY PLAN: UGA: UGA Trans [ t/ Plot plan states "property line" [ t/]' Assessor's Map (Property lines on submitted plot plan must match the property lines as identified on the Assessor's 1/4 map) [ f( Legal Access to Prope ES NO Parcel Tags or Scanned ocuments E NO [ VT ESA's: Special Reports Nearby YES NO [ f'Y Designated Ag YES [ frr Shoreline Designation: YES 0 [ kr Shoreline Slope S i 'ty: YES '�L Stream Type:YES NO FWHCA: YES NO Wetlands: YES NO Rare Plants:YES NO Seismic: YES NO Landslide: YES NO Flood: YES NO Erosion: YES N Aquifer Recharge rea:YE NO SIPZ: none At Risk High Risk Coastal CMZ: none High Risk Moderate RiskDisconnected CMZ Stormwater site plan submittedo Yes [ j4]'Forest Lands: YES .O Adjoining Forest Lands: Commercial/ Rural/ Inholding [ frr Mineral Lands: YES 0 [ ix- Agricultural Lands: YES _O [ t4 Archaeology: YES [ 1,,K No Shooting Zone: YES 'I) [ ] Stormwater: New Impervious Surface Land Disturbing Activity 0� ESA's Stormwater Req's:Min Req#2 Min Re #1 thru#5 Min Req#1 thru#10 s Engineerin [ Notice Provisions/Disclosure:Ai sort YES NO MRL YES NO Forest Lands YES NO [ I - Landscaping Required: Yes 4 o [ ,✓,ff Parking Spaces Required 2 Other I- L°I Building Height: 35' UBC Standard [ yr Impervious Surface coverage percentage: Resource Lands&Public: 10% Rural Residential. 5°/ Rural Industrial: Per UDC Sec 6.7 Rural Commercial: 60% Area of Building Coverage:60%in Rural Industrial Lands only [ t/r Total Building (s) Size: RVC:20,000 SF CC:5,000 SF NC:7,500 SF GC: 10,000 SF All others:subject to septic&water constraints/None specified [ f Setbacks: Front: Left Side: Right Side: Rear: Shoreline Setback: LSHA Setback: [V( Road Classification: Road Approach: EXISTING NOT REQ'D RAP [ SEPA Required: YES EXEMPT [1/j Flood Certificate: [t( Existing Case(s)&Condition(s): Violations: Yes No [V Recorded Date of Subdivision: AFN Over 5yrs=UDC Plat Conditions: <5yrs=Plat Conditions on plat or Old Ordinance [ Lots/Require Declaration of Restrictive Covenant YES NO, submitted: YES NO [ t UGA No Protest Agreement YES NO, submitted: YES NO [ 14" Site Visit conducted YES NO [ V Require Final Zoning Approval —ES<: [+Y ADMIN: Setbacks entered in Permit Plan case 40`YES New Parcel Tags entered in Permit Plan YES Special Reports Scanned'ES Title Notes Updated Parcel tags found for parcel 961400004 1.) WSRC Coaching -LID 2013-11-15 12/16/2013 Cases Associated with APN 961400004 Review Cases Name Type Status Planner CAM14-00482 SMITH NA M David Wayne Johnson Application Received: 8/25/2014 Permit Issued/Case closed: 8/25/2014 Case Finaled: Clearing for site development CAM14-00519 SMITH M Tim Wooled plication Received: 9/17/2014 Permit Issued/Case closed: 9/17/2014 Case Finaled: FPA2604936 INGRAM F evin Russell Application Received: 9/26/2002 Permit Issued/Case closed: 10/24/2002 Case Finaled: 0/28/2002 Class IV General 11pLA03-00447 V BLD03-00492 MLA03-00447 INGRAM I F Kevin Russell Application Received: 8/6/2003 Permit Issued/Case closed: 8/25/2003 Case Finaled: 8/ 6/200 -- Stormwater Management Permit M LA04-00453 /SUB04-00029 MLA04-00453 INGRAM III F Mo-chi Lindblad Application Received: 7/22/2004 Permit Issued/Case closed: 1/21/2005 Case Finaled: 9/22/2005 To subdivide 120 acres into'six 20-acre parcels. This notice includes the Final 1 hreshold Determination that a Determination of Non-Significance (DNS) has been issue. The optional DNS process of WAC 197-11-355 is being used. Parties of record can appeal the Final Threshold Determination by 4 p.m. on December 22, 2004. The specifications for appeals are outlined by Section 8.5.1(e)of the UDC, and require a$612 appeal fee. If an appeal of the Final Threshold Determination is received, it will be incorporated into the Hearing Examiners open record hearing for this proposal. MLA07-00035 BLD07-00026 MLA07-00035 ZASKE I F Michelle Farfan Application Received: 1/30/2007 Permit Issued/Case closed: 2/16/2007 Case Finaled: 11/8/2007 NEW SFR W/ATTACHhU t;;AKAGb ALSO A/G 250 GAL PROPANE TANK M LA15-00004 \\tidemark\data\forms\R_Parcel_CRMLA.rpt 1/23/2015 Page 2 of 3 ZON15-00003 MLA15-00004 SMITH I P David Wayne Johnson Application Received: 1/13/2015 Permit Issued/Case closed: Case Finaled: STAND ALONE STORMWATEN PERMIT PRE00-00027 INGRAM M Michelle Fartan Application Received: 7/6/2000 Permit Issued/Case closed: 9/26/2000 Case Finaled: To subdivide 120 acres into blots consisting of 20 acres each. PRE04-00019 INGRAM F Mo-chi Lindblad Application Received: 6/8/2004 Permit Issued/Case closed: 6/21/2004 Case Finaled: Subdivide 120 acres into six 20 acre parcels. SEP14-00120 SMITH A Application Received: 10/6/2014 Permit Issued/Case closed: 11/21/2014 Case Finaled: USR05-00018 INGRAM F Application Received: 3/23/2005 Permit Issued/Case closed: 2/15/2007 Case Finaled: 2/15/2007 \\tidemark\data\forms\R_Parcel CRMLA.rpt 1/23/2015 Page 3 of 3 • �4i 5� cod JEFFERSON COUNTY o \5 —(W03 k ' , DEPARTMENT OF COMMUNITY DEVELOPMENT 5 �( 0 in .... 1 621 Sheridan Street• Port Townsend •Washington 98368 5 _ Xf }!�`""fi 360/379-4450 • 360/379-4451 Fax �q�," \ (, ó� www.co.jefferson.wa.us/commdevelopment �IIN Master Permit Application MLA: Project Desc ti n(include sepal, e sheets necessary): 1 / }1-, — // d 'Pero-ILI- or .......,„, . e Si—g_. Tax Parcel Number: p6'/1/(JDZ2®� Property Size: 20 ( i 'IS'', (acres/square feet) Site Address and/or Directions to Pro.-rty: „ Cg Property Owner(s) /Record: ll* - s - / _ Telephone: 36 0 "`f 5) 7 1) Fax: email:t U r..- r'1 e', 6( 1171C 1? , Mailing Address: o, 67( IP —��.� v 1/ ; i,�6.1 '2. 2G V Ce-'1'► Applicant/Agent(if different from owner): ` Telephone: Fax: email: Mailing Address: What kind of Permit?(Check each box that applies ❑Lot or Road Segregation ❑Building ❑Critical Areas Stewardshi ❑ Demolition Permit ❑Variance(Minor, Major I ❑ Single Family ❑Garage Attached/Detached ❑Conditional Use[C(a), ■ kk., U 1 ❑ Manufactured Home .❑ Modular • • - ❑ Discretionary"D"or Un :41-d Use Classification ❑ Commercial* ❑Special Use(Essential i.t(c,Facilities) ❑ Change of Use . ❑Boundary Line Adjust "t I' JAN 1 3 2015 ❑ Address ❑Road Approach ❑Short Plat** +' I j❑Home Business ❑Cottage Industry ❑Binding Site Plan I L1; ❑Propane ❑Long Plat** � 1C i�,S ❑Sign ❑JIlowed"Yes"Use Consistency Analysis Stormwater Management ❑ Planned Rurai Residential D I Minent ** ❑ Plat Vacation/Alteration** w ❑Shoreline Master Program Exemption/Permit Revisions** 1. ❑Site Plan Approval Advance Determination(SPAAD)* ❑Shoreline Management Substantial Development** ❑Temporary Use ❑Shoreline Management Variance J ❑Wireless Telecommunication* ❑Comprehensive Plan/UDC/Land Use District Map Amendment -- ❑Forest Practices Act/Release of Six-Year Moratorium Jefferson County Shoreline Master Program Amendment *May require a Pre—Application Conference Tree Vegetation Request (a_ **Requires a Pre-Application Conference / ^ Please identify any other local,state or federal permits required for this proposal, if known: V J DESIGNATION OF AGENT I hereby designate to act as my agent in matters relating to this application for permit(s). OWNER SIGNATURE Date: By signing this application form,the owner/agent attests that the information provided herein,and in any attachments,is true and correct to the best of his,her or its knowledge. Any material falsehood or any omission of a material fact made by the owner/agent with respect to this application packet may result in this permit being null and void. I further agree to save,indemnify and hold harmless Jefferson County against all liabilities,judgments,court costs,reasonable attorney's fees and expenses which may in any way accrue against Jefferson County as a result of or in consequence of the granting of this permit. I further agree to provide access and right of entry to Jefferson County and its employees,representatives or agents for the sole purpose of application review and any required ter inspection . Staff's ss and ri ht of entry will be assumed unless the applican•informs the County in writing at the time of the applicatio '*t he • she w. is ,ior ti . /3 1 /j Signature: /� 7 Date: The action or actions Applicant will undertake as a result of the issuance of this permit may negatively imp/upon one or more threatened or endangered species and could lead to a potential"take"of an endangered species as those terms are defi -d in the federal law known as the "Endangered Species Act"or"ESA."Jefferson County makes no assurances to the applicant that the actions that will be undertaken because this permit has been issued will not violate the ESA fly individual,group or agency can file a lawsuit on behalf of n endangered species regarding your action(s)even if y. to in cl plian - With t - effe on C. my development code.The Applicant acknowleJes that he,she or it holds individual and non-tr.nsfer respo�-i•ility 'o er�• to a.. ..•aying with the ESA. The Applicant has read this A•►ss laimer:nd si lnd a -sit below. Signature: /'� / . Dat=. L dJ `�� i • BUILDER STATEMENT The signer of thi atement does here• -rtify th- they are the Owners of the parcel referenced herein,that they are not licensed contractors and that they will be as? g resp• sib" ,•the G-neral •ntractor for the proposed project. ' Signature: I IA1i/ 1f l Date: / 1Zp/ GENERAL CONTRACTOR OR MANUFACTURED HOME INSTALLER: 'FICHE: FAX: ( ) ( ) MAILING ADDRESS: EMAIL: CONTRACTOR'S LICENSE WAINS NUMBER: NUMBER ARCHITECT/ENGINEER: PHONE ( ) FAX:( ) MAILING ADDRESS: EMAIL Project Type: Frame Type: Bathrooms: Shoreline: Type of Sewage Disposal: ❑ New ❑ Wood Existing: ❑ Sewer ' ❑ Addition ❑ Steel Proposed: Bank ❑ Community System ❑ Alteration/Remodel ❑ Concrete Total: _ Height: ❑ Individual System ❑ Repair ❑ Masonry SEP Permit# O Demolition ❑ Other: Bedrooms: Water:Supply: Existing: Setback: ❑ Private well ❑ Two Party Type of Heat: Proposed: ❑ .}public Total: Name of System: If this is a Commercial Project you must answer the following: Number of Parking Spaces: Current:''�- Proposed: Number of ADA Parking Spaces: Number of occupants(includes owners,tenan employees,etc) Current ,-Proposed IBC Occupancy: IBC Type of const b tion: Will you have-Food Service? Yes / No ' If this is a Propane Tank and/or Appliance Installatio •ermit mark all items below tttat apply: I Underground Tank I Above ground Tank Size of Propane Tank: I Heat Stove I Cook Stove I Woodstove I Fireplace Insert I Hot Water Tank,/I Pellet Stove i Other Is this..appliance being installed in a Manufactured/Mobile Horn- Yes / Noy When applying for a permit to install a propane tank you must also . •mitaf site plan showing all of the buildings,all property lines,tank location and size,distances from the propane tank to all pro.;rty lines,buildings and septic system components, including the reserve area. / Square Footage Current Proposed For Office Use On Amount Revision Main Floor Heated EH s Id App Review: 2"tl Floor Heated r onsistency Review: N Other Heated ' e& '' Mezzanine Ad 1 tonal Section: Heated Basement �1 Plan Check fee: y\ Unheated Basement Statc SurU1aiye fee: Other Unheated Pot Water Revisal fee: Garage/Carport SUBTOTAL -SO Decks 911/Rd Approach fee: Other TOTAL: $ Lii . Receipt Number: Cash/Check Number: ESTIMATED COST(REQUIRED) Date: •Fair market value of all labor and materials foundation to finish Initials: G:\PermitCenter\###FORMS###\DRnMR MC\c,,..P.,,nnnR.. ..∎„r „___ A ,. , .- ,.,..... . `l t 4c� sON Cob )F PAR TMENT OF COMMUNITY EI.OP TENT � 'vUiJTY `pSkINGS O ( ��ImURIIY DEiELOPMENT STORMWATER CALCULATION NIti ORKSHEI T MLA# PROJECT/APPLICANT NAME: Richard Smith DETERMINING STORMWATER MANAGEMENT REQUIREMENTS:This stormwater calculation worksheet should be completed first to classify the proposal as "small," "medium," or "large." The size determines whether a Stormwater Site Plan is required in conjunction with a stand-alone stormwater management permit application, building permit application,or other land use approval application that involves stormwater review. The basic information will also be helpful for completing a Stormwater Site Plan, if required. PARCEL SIZE(I.E.,SITE) Size of parcel 19. acres An acre contains 43,560 square feet. Multiply the acreage by this figure. Size of parcel in square feet 838510 sq/ft Land-disturbing activity is any activity that results in movement of earth, or a change in the existing soil cover (both vegetative and non-vegetative)and/or the existing soil topography. Land disturbing activities include, but are not limited to clearing,grading,filling, excavation,and compaction associated with stabilization of structures and road construction. Native vegetation is vegetation comprised on plant species, other than noxious weeds, that are indigenous to the coastal region of the Pacific Northwest and which reasonably could have been expected to naturally occur on the site. Examples include species such as Douglas fir, western hemlock, western red cedar, alder, big-leaf maple, and vine maple; shrubs such as willow, elderberry, salmonberry,and salal;herbaceous plants such as sword fern,foam flower,and fireweed. LAND DISTURBING ACTIVITY,CONVERSION OF NATIVE VEGETATION,AND VOLUME OF CUT/FILL Calculate the total area to be cleared, graded,filled, Answer the following two questions related to excavated, and/or compacted for proposed development conversion of native vegetation: project. Include in this calculation the area to be cleared for: 9510 Does the project convert%acres or more of Construction site for structures sq/ft native vegetation to lawn or landscaped areas? Drainfield, septic tank, etc. 3500 sq/ft Circle: Yes ' No Well, utilities,etc. 238 &incidental to other work below sq/ft Does the project convert 2 1/2 acres or more of 26170 native vegetation to pasture? Driveway, parking, roads, etc. sq/ft 86206 Circle: Yes No Lawn, landscaping,etc. sq/ft Other compacted surface,etc. 178128 sq/ft Indicate Total Volumes of Proposed: Total Land Disturbance 300014 sq/ft Cut 1406 Fill 440 (cu/yd) 'TO be Wet) Q —s - Impervious surface is a hard surface that either prevents or retards the entry of water into the soil mantle as under natural conditions prior to development. A hard surface area which causes water to run off the surface in greater quantities or at an increased rate of flow from the flow present under natural conditions prior to development. Common impervious surfaces include, but are not limited to roof tops,walkways, patios, driveways, parking lots or storage areas, concrete or asphalt paving, gravel roads, packed earthen materials, and oiled,macadam or other surfaces which similarly impede the natural infiltration of stormwater. stormwater calc worksheet—REV.10/20/2014 1 _—" yam ' y. \\ r /( ,t_. 11 STORMWATER CALULATIONS-IMPERVIOUS SURFACE ,,\ NEW EXISTING -�--1 9510 ._ , , ,FNS Structures(all roof area) sq/ft Structures(all roof area) ' z.' ='1.<< Sidewalks 125 sq/ft Sidewalks sq/ft Patios 875 sq/ft Patios sq/ft Solid Decks sq/ft Solid Decks sq/ft (without infiltration below) (without infiltration below) Driveway, parking, roads, etc 24170 sq/ft Driveway, parking, roads, etc 5300 sq/ft Other(future improvements) 1 000 sq/ft Other sq/ft Total New 35680 sq/ft Total Existing 5300 sq/ft TOTAL NEW+TOTAL EXISTING* 40980 sq/ft *This amount will be used to check total lot coverage. The following questions will help determine whether the proposed project is considered development or redevelopment. DEVELOPMENT v. REDEVELOPMENT Divide the total existing impervious surface above by the size of the parcel and convert to a percentage: 1 Does the site have 35%or more of existing impervious surface? Circle: Yes No FURTHER INSTRUCTIONS: If the answer is yes, the proposal is considered redevelopment and the attached Figure 2 should be used to determine the applicable Minimum Requirements. If the answer is no, the proposal is considered new development and the attached Figure 1 should be used. At this juncture, the applicant should refer to the applicable Flow Chart to determine the Minimum Requirements for stormwater management. DCD staff will help verify the classification of the project and the application requirements. For proponents of "small" projects who must comply only with Minimum Requirement #2—Construction Stormwater Pollution Prevention—an additional submittal is not required. The proponent is responsible for employing the 12 Elements to control erosion and prevent sediment and other pollutants from leaving the site during the construction phase of the project. Pick up the Construction Stormwater Pollution Prevention (SWPP) Best Management Practices (BMPs) Packet. Proponents of "medium" projects—those that must meet only Minimum Requirements#1 through#5—and for"large" projects—those that must meet all 10 Minimum Requirements—are required to submit a Stormwater Site Plan. DCD has prepared a submittal template of a Stormwater Site Plan, principally for rural residential projects. Complete the template in the Stormwater Site Plan Instructions and Submittal Template or prepare a Stormwater Site Plan using the step-by-step guidance in the Storm water Management Manual. APPLICANT SIGNATURE By signing the Stormwater Calculation Work9heet,I as the applicant/owner attest that the information provided herein is true and correct to the best of m wleyiget I also certi that,this appliEat)6n is being made with the full knowledge and consent of all owners of the affected propert i..-' / . /71.71,./.. ,, r1 t-. ,!d!1,i!J.r7r `, / , 5 (LA . NER OR AUTHORIZED REPRESENTATIVE SIGNATURE) 1 (DATE) l FOR OFFICE USE ONLY SMALL MEDIUM LARGE REDEVELOPMENT ` Stormwater Site Plan: Yes No stormwater talc worksheet—REV.10/20/2014 2 F Sally Ellis Subject: Richard Smith Start: Tue 1/13/2015 9:00 AM End: Tue 1/13/2015 10:30 AM Recurrence: Weekly Recurrence Pattern: every Tuesday from 9:00 AM to 10:30 AM Organizer: Mary Blain Name of Appt person: Richard Smith Phone Number:437-7660 Name of Property Owner: Richard Smith Parcel Number: 961400004 Address, if applicable: N/A Project: (NSFR,SPAAD etc?)Tree/Vegetation Removal (for future SFR) Previously met w/DWJ, CAM14-00482 on 08/25/2014 — SPAUD .tom "ksSepiq -2_0 Epuirorvy, fv\--GLI Neat-H-1 . (S---79rn-kuti a -e✓ 1D