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HomeMy WebLinkAboutHydrogeologic Assess 976200402April 21, 2003 Mr. Paul Marks P.O. Box 63 Nordland, WA 98358 PACIFIC ~['0 L1 Il d \h;a [c 1- GROUP < ' - '.';:" ;::',2"'~-/' ,~-'-'":T2;~'~:~L : '- Dear Mr. Marks, This letter report presents our analysis of hydrogeologic conditions at the property listed above on Marrowstone Island, Washington. Our analysis addresses "relevant components of an Aquifer Recharge Area Report per UDC 3.6.10e" as required by UDC Groundwater Protection/Seawater Intrusion Amendments, March 3, 2003. Our discussion with Jefferson County indicated that the "relevant components" were those pertinent to exacerbating or causing seawater intrusion effects on neighboring wells (personal communication, David Christensen, Jefferson County Division of Natural Resources, 2003). Other components are not addressed in this report. Our proposal of March 4, 2003 was authorized by Paul Marks on March 19, 2003. Our work was performed, and this report prepared, in accordance with generally accepted hydrogeologic practices at this time and place, for the exclusive use of Paul Marks, and for exclusive application to the two primary wells on the subject property. This is in lieu of other warranties, express or implied. Propd'rty and Project Description The Marks' property consists of about 8 acres on two parcels in the community of Nordland on Marrowstone Island (Figure 1). The property currently has the following dwellings and water-use attributes: A two bedroom, one bath house (Johnson house) that is supplied off the dug well · A one bedroom, one bath "cabin" that is supplied offthe dug well · A front parcel of about 3 acres (976200402), some of which is irrigated with water from the dug well · A back parcel of about 5 acres (976200501) that is grazed and not irrigated. Two unused wells are located on this back parcel (wells ACC057 and ACC059). P 206.329.0141 F 206.329.6968 ] 2377 Eastlake Avenue East I Seattle, Washington 98102 I www. pgwg.com water & environmental consultiug The property is for sale and the prospective new owner proposes to make changes to the dwellings that will require a building permit. Changes to the structures proposed by the buyer are: Building a new two bedroom, 1.5-bath house on the front parcel that would be supplied by the better of the two wells on the back parcel (well ACC059) · Possibly moving the cabin to the back parcel and also supplying it off well ACC059 · Maintaining the Johnson house as an "accessory dwelling", and maintaining the water supply off of the dug well If the cabin is moved, the total increase in bedrooms and baths on the combined parcels will be 2 and 1.5, respectively (Table 1). If the cabin is not retained, the total increase in bedrooms and baths will be 1 and 0.5, respectively. ~ As implied above, three wells exist on the two parcels. These wells, and othe'r wells located within about 1000 feet, are shown on Figure 1. The Marks' wells are: The dug well, which is located about 35 feet east of the JohnsOn house, i§ about 5 feet in diameter and extends to 38 feet below land surface. It probably produces water from the Qva aquifer with a water .level about 10.6 feet below ground surface on April 3, 2003. Access to the well is through a 5fi x 5fi x 6.5ft deep concrete vault which rises 2.5 feet above ground surface. The concrete vault serves as-an (unconventional) surface seal which penetrates into glacial till. The till extends to below water level. Elevation of the top of the concrete vault is 2.5 feet above local ground surface. Ground surface elevation was estimated to be between 20 and 25 feet above mean sea level based on LIDAR data provided by the County. Based on that elevation, the bottom of the well is between 13 and 18 fe~t below mean sea level, and the water level elevation is between 8 and 14 feet above mean sea level. That water level is unusually high for Marrowstone Island and indicates unusually high groundwater storage near the well. 'Well .ACC059 was drilled in 1995 near the center of the back parcel. Its well log (attached) indicates it is 54 feet deep, has a surface seal to 18 feet depth, and penetrates 30 feet of surface soil and glacial, till. Water bearing sand and gravel of the Qva aquifer was logged at 30 to 35 feet depth, and 44 to 50 feet depth. Bedrock was not encountered within the drilled depth. The driller reported a water level 27 feet below ground in October-1995. Water level in the well was 24.4 feet below the top of the steel casing (2.2.6 feet below ground) on April 3, 2003. The 6-inch casing rises 1.8 feet above ground surface and is capped with a pitless adaptor, although no pump is in the well. Elevation of the top of the steel, casing was estimated at 39 feet above mean sea level based on LIDAR data provided by Jefferson County. Based on that elevation, the bottom of the well is at about 17 feet below mean sea level, and the water level is 15 feet above mean sea level. The water level elevation in ACC059 ~is ~simi.'!ar to :..that~ ~o~th~ ;d? ~eI1 suggesting hydraulic continuity, and'unusually high ~r°Und~at~ist~a~e l~cdl~y. MAY 1 9 2003 izz{~.~ ......... Page 2 . Well ACC059 was pump-tested in September 2000 by Bayview Pumps (see attachment). A pumping rate of between 3.18 and 4.47 gallons per minute (gpm) was maintained fbr 2 hours. Water level in the well declined from a static level of 23.5 feet below the measuring point to stabilize near the bottom of the well at 54 feet below measuring point after about 70 minutes of pumping. Although the well experienced complete drawdown, a pumping rate of over 3 gpm was maintained for the last hour of the test. The test was not analyzed further for this report. Well ACC057 was drilled in 1995 near the north end of the back parcel. Its well log indicates it is 58 feet deep, has a surface seal to 18 feet depth, and penetrates 37 feet of surface soil and glacial till. Water bearing sand and gravel of the. Qva aquifer was logged at 37 to 42 feet depth. Bedrock (gray sandstone) was logged from 45 to 58 feet depth. The driller reported a water level at 25 feet below ground in October 1995. The well is welded closed and no water level was measured in April 2003. The 6-inch casing rises 2.2 feet above ground surface. Elevation of the top of the steel casing was estimated at about 35 feet' above sea level based on LIDAR data provided by the County. Based on that elevation, bedrock in the well was encountered about 10 feet below mean sea level at this location. The well log reports a well yield of 0.3 gpm. Hydrogeology The hydrogeology of Marrowstone Island has been extensively studied, most recently as a result of seawater intrusion concerns. The following description of the hydrogeology in the vicinity of the project is derived from the well logs discussed above, a recent reconnaissance, and Geology, Water ReSources, and Seawater Intrusion Assessment of Marrowstone Island, Jefferson CoUnty, Washington, Washington State Department'of Ecology Water Supply Bulletin No. 59, by Kirk Sinclair and Robert Garrigues, 1994. Marrowstone Island rises gently to the east of Mystery Bay in the vicinity of the site. The lower parcel occupies much of that west-facing gentle slope. The upper parcel is relatively flat; and occupies part of the central portion of the island, although lands further east are of higher elevation. The eastern shore of Marrowstone at that location is a cliff, with nearby land surface elevations as high as 150 feet above sea level. The distance between Mystery Bay and the eastern shore of the island is about 1600 to 1800 feet. The Marks' parcels span the western 600 to 700 feet of that distance. Groundwater on Marrowstone is derived from infiltration of precipitation on the island. Sinclair and Garrigues-(1994) estimated that in an average year 2.2 inches of water infiltrate to recharge the aquifer. The volume of recharge water for the entire island was estimated to be 730 acre-feet per year. Pammetrix and Pacffic Groundwater Group (2000) estimated that recharge was about 5 inches in the average year' near the site. Although the percent difference between those recharge estimates is large, the absolute difference is only about 3 inches of water per year, which is within a .tTpical range of precision for such calculations. The reason for the different- reehar_g?-estimates.w~ not researched. The high groundwater head in the vic~y ~f ~he ~a~s !~a.!ls ~aY!indicate i~ ~:' MAY 19 2003 unusually high recharge rates for the island. Infiltration through the relatively flat upper parcel, and similar lands to the north and south, may contribute to this effect. Once groundwater reaches the aquifer, it moves mostly laterally toward the island's shorelines. In island environments, the fresh groundwater typically floats as a lens on top of deeper groundwater that is saline. The fresh groundwater discharges to the sea along the shorelines or is withdrawn by wells. Water that is extracted by wells and used inside houses is mostly discharged back into the ground through septic syste, ms, thus resuming its path toward the shorelines. Water used to irrigate lawns and other maintained vegetation is added to the water that is transpired into the atmosphere from natural vegetation and does not discharge to the sea: Four geologic layers are involved with water movement and storage near the site. Starting at land surface, they are as follows: Surface soils are derived fi:om the underlying glacial till and were observed to be moderately to poorly drained, organic rich, and relatively fine grained. Surface water was observed in shallow depressions during April 2003, following a very wet March. The upper parcel and nearby lands, comprising the central island terrace had extensive areas of shallow groundwater and standing surface water. Detention of~ater within and upon the surface soils of flat upland areas likely plays an imPortant role in maintaining groundwater recharge in this vicinity. Vashon till lies below the surface soils within a few feet of land surface. It is a very dense, unsorted mixture of gravel and sand in a silt and clay matrix. Till is sometimes called "hardpan" or "glacial concrete". Based on observations of shall.ow water and the till penetrated by the dug well, the till has low permeability and causes retention of water in surface soils dUring the wet season. The two on-site-well logs indicate that the till extends to at least 30 feet below land surface. Vashon Advance Outwash (Qva) deposits constitute an aquifer that underlies the till at depths of 30 to 40 feet at this location. The deposit appears to be a stratified mixture of sand and gravel, with occasional, clay lenses. The sand and ~avel strata constitute the primary aquifer east of Mystery Bay, although the aquifer may have different zones, separated by horizontal aquitards (low permeability layers) and by ._geologic discontinuities of various orientations.' Groundwater in the aquifer at ~:~"~i~"i: confined below the till. In parts of the aquifer east of the Marks', the The Qva is absent on Griffith Point across Mystery Bay from the Marks prq~Pert~. ..... [~ ) '-"i' F~)-}-', Bed,ock. cons,st,ng of s,ltstone and sandsto,e, underl,es the t,n or location. The bedrock has low permeability and tends to restrict groundwater storage ~[ movement - although wells develop small quantities of groundwater from fractures within the bedrock when no alternative exists. On Griffith Point west of Mystery Bay, bedrock is within a few feet of land surface, and directly underlies glacial till. Because of Page 4 the absence of the Qva aquifer at that location, wells develop water from fractures in the .bedrock. Bedrock was logged below 45 feet depth (estimated elevation of 10 feet below sea level) in on-site well ACC057 where it underlies the Qva aquifer. Sinclair and Garrigues (1994) report a well log (AAB083) that shows bedrock at an elevation of 20 above sea level near the Marks' property. That bedrock elevation is above the potentiometric surface in any well in the vicinity - thus establishing the potential for physical separation of the Qva aquifer zones by a buried bedrock ridge. The bedrock ridge is generally depicted in Plate 5 of Sinclair and Gardgues (1994). Groundwater Quality The primary water quality concem that is related to water use is the possible increase in dissolved constituents because of seawater intrusion. The discussion below focuses on chloride concentration as an indicator of seawater intrusion. ~ Jefferson County recently classified all of Marrowstone Island as a high risk salt water intrusion zone (SIPZ). The basis for the classification is the proximity of the shoreline to almost all of the land on the island, and the presence of many wells on the island that produce water that'contains more than 100 mg/I, chloride. -: The Marks' dug well was sampled on April 3, 2003. Field analyses indicated that the water was 54 degrees Fahrenheit, had a specific conductance of 465 uS,. a pH of 7.8, and a chloride concentration of 45 mg/L (Iow). Although well ACC057 was not sampled, the well log reports a chloride concentration of 30 to 45 mg/L. Well ACC059 was tested and sampled in September 2000 and had a chloride concentration of 29.6 mg/L (see attached Twiss Analytical report). GroundwAter chloride concentrations in Marrowstone Island are reported in a map on the Jefferson County website]. The Marks' .wells are not reported on that map; however, many surrounding wells are. The data are shown on Figurel and indicate that the two wells closest to the Marks' parcels'are low in chloride (<100 mg/L) but that many wells in the vicinity have chloride concentrations greater than 100 mg/L. That data set, combined wihh recent data from the on-site wells, indicates that the Marks' property is underlain by a portion of the Qva aquifer that is not degraded by seawater intrUSion. A high risk of seawater intrusion is indicated by the County's data on Griffith Point along the western shore of Mystery Bay.' The Qva aquifer is absent 'in that area, and wells produce water from the bedrock. Mystery Bay lies between Griffith Point and the Marks' property. Because of the geographical and stratigraphic separation between the Griffith Point bedrock aquifer and the Marks' property Qva aquifer, chati"~g;e~';'i~:~.41m~."d'"~i.s~ groundwater use at one location will have little to no affect on the ot~r ~0~6ti"....~:.~ ..(! .. ' http'//www co jefferson Wa us/idms/pdfs/maparchive aspVsortField:Title&searc Page 5 A high risk of seawater intrusion is also indicated by the County's data for the eastern shore of the island and for areas along East Marrowstone Road, all east of the Marks' property. Wells in that area produce from a portion of the Qva aquifer that appears to be in poor hydraulic continuity with the portion of the Qva aquifer under the Marks property. The separation may be related to a ridge of bedrock that rises near-to or above the potentiometric surface of the aquifer and thus splits the Qva aquifer into eastern and western portions. Sinclair and Garrigues (1994) report that the bedrock elevation in well AAB083 begins at an elevation of 20 feet above sea level. That elevation is above the potentiometric surface, in any well in the vicinity - thus establishing the potential for physical separation of the Qva aquifer zones by the buried bedrock ridge. The bedrock ridge is generally depicted in Plate 5 of Sinclair and Garrigues (1994). Other evidence for the isolated nature of the portion of the Qva aquifer near the Marks' residence consists of high groundwater heads (8 to 15 feet above sea level) and low chloride concentrations compared to the surrounding aquifer zones. Seawater Intrusion The thickness of the fresh groundwater lens is directly related to the amount of fresh groundwater that floats on the saline groundwater below. As groundwater is extracted by wells, the fresh water lens thins, and the saline water interface moves laterally inward and upward toward pumping wells. Effects of pUmping are usually limited to establishment of a new equilibrium position of the groundwater/sea water interface without actual pumping of seawater by wells; however, under conditions where pumping water levels are maintained below sea level for long periods of time, wells may begin to pump highly saline water and become non-potable. At intermediate levels of effect, chloride concentrations increase, particularly in wells near the shoreline, or in the deepest wells. In the UI~? Groundwater Protection/Seawater Intrusion Amendments of March 3, 2003, Jefferson County has identified that many locations on 'Marrowstone Islag.. al,are at~.n..'~..gf~ seawater intmsion. It is the purpose of the amendments to prevent de~.'.d~i~ti~fi potable water resource. Water. Use Analysis This section presents estimates of water usc on the Mar~s' prope~ un~-h~te~[ ...... proposed ~tture conditions. The conditions are-s~zcd in ~able 1. Sin(~e all the Marks'wells produce from the same aquifer and have similar bottom elevations, the analysis does not differentiate between wells. The analysis assumes that historical water use is near the high end of the per-capita range cited by Sinclair and Garrigues .(1994): 150 gallons per day (gpd). per person'is the assumed total water use. A high value was used because the Marks' property has old, high-water-use fixtures and one of the largest lawns observed during our reconnaissance on the island. For calculation purposes, we assume that the water supply for the property Page 6 includes irrigation of 0.1 acres of shrubs and lawn, with an annual irrigation depth of 6' inches per year. We also assume that the average bedroom houses 1.5 people. Under those conditions, we expect that the Qva aquifer supplied a total of 675 gpd of water to the property, of which an average of 45 gpd was for irrigation (Table 2). Under the proposed conditions, it is assumed that fixtures in all dwellings will be changed to low-flow varieties, which is assumed to result in a 25% reduction of in-house water use. Conditions where irrigation remains unchanged, or reduces to zero are analyzed. Total water use under the proposed conditions is estimated to reduce to 113 gpd per person. 'Given the increased number of bedrooms under the proposed condition, slightly more to slightly less water will be used under the proposed conditions compared to the historic conditions (Table 2), depending on whether the cabin is retained or not, and whether groundwater continues to be used for irrigation or'not. Although these calculations are approximate and contain several assumptions that may not perfectly reflect historic or future conditions, they demonstrate that the proposed change in land use can be approved without an increase in groundwater use. Key to avoiding an increase in groundwater use is implementing water conservation measures stipulated in the UDC and listed below in this report. Impact Analysis Based on the hydrogeologic conditions -at the property, potential impacts are limited to wells in the local Qva aquifer zone. Impacts to wells currently experiencing high chloride concentrations (wells on Griffith's Point and along East Marrowstone-Road) are not likely because those wells draw water from aquifers that apparently have a low permeability connection with the portion of the Qva aquifer from which the Marks' wells draw water. Impairment of the local wells will not occur if water use does not increase-and groundwater recharge is preserved. The water use analysis indicates that water use increase can be avoided or limited to a small increase. Groundwater recharge potential can be protected through land and water use regulations (this is particularly important on the nearly flat terrace near the center of the island, of which the Marks' upper parcel is a part. Under these conditions, impacts to the local wells will be avoided. " .... -" :'~ r~;~' i :' ~ "~ '~ Impacts-were not further quantified because the concepts discussed!h b bi,; Piovi~Ie reasonable probability that the aquifer will not be degraded by the propos~:.~ Recommendations We recommend that the Mandato . ^ctions listed for development in and Ma~owstone Island S]PZ (UDC. 3.6.$ - Groundwater Protection/Seawater Intrusion Page 7 g Amendments) be required for approval of the proposed construction. These actions are listed below along with other recommendations specific to these parcels and wells: Water meters should be installed on the dug well and well ACC059. Meter readings should be made in accordance with any coordinated effort for the island, or at least quarterly. 2. Samples of water should be collected from each well and analyzed for chloride, in coordination with any program coordinated by the County. A minimum 1000 gallon storage-tank is required along with a pumP for well ACC059 that is designed to provide the required flow at reduced drawdown in the well (by increasing pumping time duration, and reducing pumping rate). The maximum allowed pumping rate for each property is 3 gpm (Jefferson County Water Conservation List, October 25, 2002). In add~ition, the volume pumped from each Well is limited to 1000 gpd. Retrofitting the dug well with a new pump and storage tank will not achieve much because the large diameter of the well bore already provides a large in-ground storage capacity. The large well bore and storage capacity naturally reduce drawdown spikes in the dug well. Well ACC057 should be properly decommissioned, or converte~f to a monitoring lOcation in'coordination with a County program, if desired. 5. All current water fixtures should be replaced with low-flow fixtures, and low-flow fixtures should be used in all new construction. Intercepted precipitation (roof drains, road runoff, etc) should be detained, and infiltrated to the extent' possible, by approved means. (See the paragraph below regarding use of catchment water for irrigation.) T~e Water Conservation Measures List stipulates that well water cannot be used to irrigate lawns or gardens, but that roof and other mn off can be retained in a catchment and used for irrigation/ Depending on whether the cabin is retained or not, this measure may be unnecessary to achieve a zero-net-impact based on the water use analysis in this report. BecaUse of the limited volume of typical catchments, implementing this measure could result in a reduction in total water use on the Marks' parcels if implemented for new and existing water supPlies. The owner may therefore wish to limit this restriction to the new construction, and maintain limited irrigation capacity from -the. dug well, if 'allowed by the County through this permitting process· An increase in irrigation could increase future water use compared to historical uses and should be avoided. Page 8 Current conditions wherein shallow groundwater and standing surface water on the upper parcel accumulate and infiltrate should be maintained. That Parcel should therefore not be artificially drained. Also,' any east-west elongate excavation that connects the upper and lower .p_ar.cela~s~0u_ld:;,b~e-,~b~._ckfillcd in a · . ~2;;ii'~, ,;-~ ~,.~.;; . ~ 4; ~.~? ~..~ ~ ~-:~ ~ ' manner that hrmts shallow groundwater m~v,~r~., r~w[~..~h¢,tr~hci~}b~!l. · ' 'i i Closing We trust this report meets your needs. Please call if you have questions or concerns. Respectfully, Pacific Groundwater Group Principal Attachments I.. Table 1. Project Desctiption 2. Table 2. Water Use Estimates 3. Figure 1. Project Location, and Wells 4. Well logs for ACC057 and ACC059 5. Well test record for ACC059 6. Twiss Analytical Report for well ACC059 7. Water Conservation Measures List 8. UDC 3.6.5 as amended 9. 'References Page 9 0 0 0 Parcel wi~h County Groundwater Chloride Concentration H = 6rearer than 100 mg/L L = Less ]han 100 mg/L County reports data where no wells appear }o exist. 0 Confirmed Well (many are unused) FIGURE J. ' :':' Marks' Parcels and Local Wolls P F~e Original and Rr~t Copy Depedment o{ Ecology Second Copy ~ Owner's Copy Third Copy-- Drltter'a Copy WATER WELL REPORT o -7 STATE OF WASHINGTON Water Right Permit No. {2) LOCATION OFWELL: (4) TYPE OF WORK: Owr~ersnumberolwall .. (1! mom than ene) Abando~l [] New w~ll ~ Melh~d; Dug O Bo,~l [] Deep~med O C,. b~e C] On~n (5) DIMENSIONS-' OIomnmra~well ~'~ Inches. (s) CONSTRUCTION DETAILS: Casing Installed: Une t Instal~l ~. '~readed [] Perforations: Yes [] No 1~ Type o~ par[orator used SrZE ol pedora~'~s In. by In. ~ peflom0ons from ,Kto ,fi- Gmvelpecked: Yes [] No [] Sizeoloravel Surface seab Yes~. Nor-~ To what ~elYJ'~' Did any shzta mnt~ unasa~ wa~? Yes I--] Type c4'waZer? ;;-: D~pth of sl~ata Method ot so,rig s'aata oil (7) PUMP: ~ufac~mr~ Name ~ - Ty~e: H.P. (10) WELL LOG or ABANDONMENT PROCEDURE DESCRIPTION Fore,at, n: Descfit~ by co~, ch~-~r. ~ze of n~ad~l an~ structure, and sl~w IhEtmass ot ~ulfem and the kind ad t, mtum of the material In each stratum p~rmtrated, with at bast one m'dTy for each MATERIAL TO (8) (0) WELl. TESTS: Dtawdc~wn In amo-nt water b..~ ~s lowered be~v. statin lewI Was a pump I~st made? Yas I-1 ' I¢~]~[ If yes. by whom? ' Y'etd: . . gaUn~n, with . ~ drawdo~m alter firs, ~ ~/:/e~m,,my data {ltl'rte'taken as zero when pump turned ol) (water level ~red Eom wen o waler level) Tmle Wat~ Level T~me Water Level T~'ne Wa~l~' lev~t WELL CONSTRUCTOR CER11FICATION: ! cons~cted e~dlor ~ reqx~slbil~ for ¢ons~ction o; this well, ~ ~ compliance with all Washb~:jlon well coasttucUon slamlards. Mntertals used and the tn{ormaflon reported above are tree lo my best knowledge and beret {PEP~ FI~ OR COR~ tqYPE OR PRIN'f} Contractor's (USE ADDmONAL SHEETS IF NECESSARY) . Ecology la an Equal Oppodunity. and Affirmative Action employer. For spe- cial accommodation need~, contact the Water Resources Program at (206) 407-6600. The TDD number is (206) 407-6006. File OdgL, qal and First Copy with Departfllent of Ecology ~eecond Copy -- Owner's Copy Thf;d Copy -- Driller'8 Copy WATER WELL REPORT STATE OF WASHINGTON Water FUgm Pen~t No. (3) PROPOSEOUSE: _~ Domestic ]n~ustrmt 13 Uun~pal [] n DeWataf Test We~l [] Othe~ [] (4) TYPE OF WORK: ovmm's number of (If mom m,. ~a) A~ ~ N~ w~ ~ ~ o c~o R~ o O~mO CON~STRUC11ON DETAILS: Gravel paoked: Ya~ [] - No ~[ SEa of gmvet ~ra~ r~m fl. ~o. Surf~ceseak.Yes,j~_- NoD Towhatdep~h?. /~' -- ~er~-~a~~r~ Yes O NO ~ PUI~: Manufacturer's Name Type: - H.P. {8) (9) WELLTEST~: Omwdewn~a~mmtwatm~lslm~mdbe~wstati~lev~ Was a frump test ma~e? Yes[~ No j~,, tf yes, I~'wbom? Y'ekr: __ galJmin. ~,'i~ , ft. ~ re'mr Racovmy d~ta '~(ti~e takes as zero v~en pump turned o~ (water level rr, easumd f~m vmll top t~ wateHevi~ Time Water Level T~me Water Lev~ Time Wata' lavel EOY or, o.."l-,2o (9,93) * · f .~'-, (10) WELL LOG or ABANDONMENT PROCEDURE DESCRIPTION Fom~mlo~ O~scribe by cebr, chan~er~ size of ma1~flal ~ s~caa'e, ~ show thlc3cness of aquifers and t~e kJnd and .,tatum M f~ material In each sire'urn penelrated, with at bast one enhy fo~ cha~ge'of I,I~T=RIAL TO · WELL CONSTRUCTOR CEITI1FICATION: I mnstmcted and/or acce~t respons~bllfty for construction of this 'well, and its compliance with all VVash~n~n well constmc~an standards, Materfals used and the lnformatlo~ reported above are true to my best know~e and belief, RegLs-t~on .,.j n (USE ADDITIONAL SHEETS IF NECESSARY} Ecorogy Is an Equal Oppmtunily and Affirmative Action empk)yer. For si:N> rial accommod, ation needs, contact the Water Resources Program at (206) 407-6600. The TDD number is (206) 407-6006. O APR-iT-P000 0~:35P FROH: Radir::.ac-k ~011 : -.) 13683854:.96 P: ~- .. , .... : .,,'""' , , ..:~ . .~-_.-~ ~:.. . -~L¢ [~ MAY .9 2003 [. DEPT. O~ u.,~h [)FVE[OPL~', ·- .. : . .......... ,., ~ ~ o~ '09/ld/2000 14:14 3G03853440 GRACE PAGE 83 Bayview Pumps P. O, Box 370 Port Hadlock, WA 98339 (360) 379-8000 - -. .................................................... ~.~..._~ t~cc · - .. -P:~¢..._~.~.~..~?~.._~..:._ck !?..¢!', ~..~.~..~...~....-..~ ~._ ¢.~~...~.~__~r_ .... ...... . ....... : ....... : ........ .:.... 2 .................... ................... .......... : ...................... , .................. : .... ..'...~ .... ~."t...~ ...... . ........ i.....3.:.~ I ~;I ~~, ~' ....... :"-;:Z-'~ .... T',',"':"-- ...................................... 26280 Twelve Trees Lane, Suite C Poulsbo, Washington 98370 WATER BACTERIOLOGICAL ANALYSIS SAMPLE COLLECTION: READ IN--NS ON B/tCK OF GOLDENROD COPY If Irl$1rucUon$ are not followed, sample will be rejected, I DAT~ COLLECTED ] TIME COLLECTi~D COUNTY NAME I~IAM TYPEOF SYSTEM IFPUBUC SYSTEM, COMPLETE ,, CIRCLE GROUP NAME OF SYSTEM cc._ · ~PECIFIC:L(:~.RTI~ W~-IERE $,~L~ ~OLL~EO TEL~PH(~%IE NO. ~VENING( -~ gAMPLE COLLECTED BY: (Name) SYSTEM OWNER/MGR.: (Name) SOURCE TYPF..~_ ~ [] GROUND WATER UNDER SURFACE INFLUE~NCE r'3 SURFACE ~LL or ~ gPRING ~ PURC~ m ~ COMBI~TtON ' W~LL FIELD ~ or O~Efl -~pE OF ~MPLE (e~k o.~ o~'~ DRINKI~ WATER - ~ REPOT ~PLE ~__ I__t__ ~STRUCTION et RE~I~S ' ~ ~N C~i~rm ~ OTHER (Sp~y) .. REMARKS: ' (L~B USS Om'V:)oemK!~ WA~fn R~U'-''rs [] UNSATISFACTORY, Cofifo.na ~esem ~ATISFACTORY, Om~lo~m~ absent REPEAT r-'] E, C~i ~'esem. [] E, Coil ~sem SAMPLES REQUIRED [~ Fecal I~re~.ent I-1 ~ absent om.E. r~ao~, '~m..E.su-~s '" TOl:RL COLIFORM 1109 m[ E. COL[ ~ 1100 ml FECAL COLIF?R,M~/100 m~ ,LATE COUNT ' / ANQ?HER ',~&M PLE'R E QUIR EO SAMPLE NOT TESTED BECAUSE: TEST UNSUITABLE aECAusE:. 1~ Samplea Ica o~d f-I Cortfluefl{ growth I-J Wrong s:omalner 1-1 TNTC ['1 Incomplele ~orm I-t Tu(bld cuMure SEE RSVI~I~$E SIDE OF GREEN'OOPY FOR EXPLANATION OF REgULT$ ' 'l LAB NO. (7 DIGITS) {' OATE. TIME RECEIVEO J RECEP~t~'D BY '1 !o o I TWlSS ANALYTICAL LABORATORIES, INC, 26280 Twclv* Trees Lane. SuiteC PauLebo, WA 98'3'/0 Telephone060)7?94141 FAX (.'160) T'/9.5150 INORGANIC CHEMICALS (IOCS) EEPORT System ID No: Private Lab/Sample No: 01049502 _.M?.lJl~pl¢ Sources: Date Received: 911100 Date Prepare. d: CountY: Mr~rson Sample Lo~lion: Well System Name: ACC059 Date Collecled: 9/1100 San?!e. Tyl~c: R Dale Rcporled: "~)ale Ahab, zed: 9/6/00 DOH Source No: .S. nmplc Purposc: B ........ Analyst: MP Group: Scnd RePOrt To: Bayview Pumps, Inc. PO l~ox 370 Pon-Hadl~k. WA 98339 Trigger Level: MCL: ' ND: Bill To: 250 (State R~onin~ Level), indicates Ibc minimum r¢l~ninll lev,~i r~tuired hy d~ W~hin~ml D~fln~t ~liealdt (l~ll), C'vmmtnis: MAY 1 9 2003' J[FF[RSON COLIN~ COMMUN~' D EV'ELOPME~)~j Twiss Laboratory Number: 25S5I Page