HomeMy WebLinkAbout06 MLA17-00019 STORMWATER SITE PLAN (1.:; 41 417k6A, JEFFERSON COUNTY , '. . LJL\7flPfl
ON.-"? , . i I?,, ii -- -,..tnirv,„„..„,
d 04 DEPARTMENT OF COMMUNITY DEVELOPMENT ,
, 621 Sheridan Street • Port Townsend • Washington 98368 LI '
rq� 0� 360/379-4450 • 360/379-4451 Fax
NTNG http://www.co.jefferson.wa.us/commdevelopment/ 'Ee- SON CQuN-yDc�`
STORMWATER SITE PLAN SUBMITTAL TEMPLATE
MLA## 17-00019 PROJECT/APPLICANT NAME: Austin D. 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 site has an existing SFR, various small sheds and a gravel driveway and parking area. The applicant proposes to
construct a 10,080 SF greenhouse for a cottage industry. The proposed building site is level with no trees requiring removal.
Existing Conditions Summary
2. Describe the existing topography. Indicate contours on the site map.
The existing overall site topography slopes to the east at a grade of about 1 to 3%. The proposed building site is
approximately level.
3. Describe the existing vegetation. Indicate native vegetation areas on the site map.
The site is well vegetated with lawn, shrubs, gardens and native forest. Native forest mainly covers the eastern half of
the parcel, and along much of the parcel perimeter.
4. Describe the existing soils. Indicate soil type on the site map. Native soils on the site consist typically of poorly-drained
fine and very fine material with shallow restrictive layers.
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.
A DNR-mapped creek traverses the parcel north to south in the eastern quarter of the parcel. The creek has a shallow grade and
supports fertile riparian habitat with wetlands extending 20 to 30 ft laterally on each side. Stormwater appears to flow eastward on
the site (west of the creek)over a well-vegetated undulated ground surface.
6. Describe any excess levels of noise generated by the proposed use or activity:
None.
stormwater site plan template.doc—rev.4/28/2014 5
1
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.
The DNR-mapped stream and associated riparian habitat and adjacent wetlands comprise the only environmentally-
sensitive areas on the parcel.
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 site is surrounded by forest and large residential parcels.
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.
The applicant proposes to fully disperse downspout flow per BMP T5.30,from the proposed greenhouse onto well-
vegetated ground surface east of the proposed structure. Tight-lines would transport downspout flow to an area north of
the existing Glendon Biofilter Pods(cross-gradient)to an area that clearly prevents flows from intersecting the existing
septic drainfield.
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.]
No formal treatment facilities are proposed. Natural cleansing of the already-clean downspout flow will be accomplished
by the proposed vegetated flow path.
11. Describe the performance goals and standards applicable to the project.
100%full on-site dispersion, 100% pollution prevention, 100% erosion control during construction.
12. Describe the flow control system.
Downspout flow transported by 90 to 100 ft tight-lines will discharge to erosion-preventing rip rap dispersion areas uphill
from a 600 ft long vegetated flow path that includes a proposed 75'x225'Preserved Area protected by a proposed Stormwater
Drainage Easement.
LOG Eivi
stormwater site plan template.doc—rev.4/28/2014 n �+� 6
13. Describe the water quality system.
No formal water quality system is proposed,other than the propose vegetated flow path.
14. Describe the conveyance system analysis and design.
Roof downspouts; at least one downspout per 700 square ft of roof area. Two 4-inch diameter tight-lines will provide ample
flow capacity(based on previous project experience by Everett A. Sorensen, P.E.)
15. Describe the source of fill material, physical characteristics of fill material, and deposition of excess material.
No imported fill material will be required.
16. Proposed methods of placement and compaction consistent with the applicable standards on Appendix Chapter 33 of the
Uniform Building Code.
Standard building practices using standard construction equipment will be used to compact any fill material consistent
with applicable standards of the UBC.
17. Describe the proposed surfacing material.
The existing driveway and parking area is gravel. Undeveloped surfaces will remain vegetated or be re-vegetated with
native plants, shrubs and grasses.
18. Describe methods for restoration of the site.
Disturbed areas will be re-vegetated with native plants, shrubs and grasses.
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.
No flow control nor treatment facilities are proposed.
20. List here and include any special reports or studies conducted to prepare the Stormwater Site Plan.
Soil evaluation and soil logs were taken from the applicant's 2007 on-site sewage system design by Creative Design
Solutions of Port Angeles.
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.
None
LOG ITEM
stormwater site plan template doc—rev.4/28/2014 7
8 4;.!0:1 v.
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.
No clearing is required. The location of the proposed greenhouse is already clear of trees and shrubs.
2. Establish Construction Access.
Construction access will be limited to the exisitng gravel driveway, depicted on the Site Plan with Existing Conditions
and Proposed Stormwater Management Features prepared by Streamline Environmental, Inc.
3. Control Flow Rates.
No dewatering nor flow diversion will be needed for site development.
4. Install Sediment Controls.
Straw mulch shall be spread to a thickness of a couple inches on any bare ground surfaces until construction is
completed and these areas are re-planted with native shrubs and native grasses. The expected area requiring
straw mulch is shown on the Site Plan with Existing Conditions and Proposed Stormwater Management Features
prepared by Streamline Environmental, Inc.
5. Stabilize Soils.
All disturbed surfaces will be covered with straw mulch at least 2"thick to minimize erosion of these exposed surfaces. Any
soil or sediment left in piles for at least two days during the wet season (7 days during the dry season)will be covered with
plastic, secured around the edges, to prevent erosion.
6. Protect Slopes.
There are no significant slopes requiring protection.
7. Protect Drain Inlets.
There are no storm drains at the site requiring protection.
LOG ITEM
stormwater site plan template.doc—rev.4/28/2014 8
4-
12 Required Elements—Construction SWPPP(continued)
8. Stabilize Channels and Outlets.
There are no channels or outlets at the site.
9. Control Pollutants.
Pollution will be prevented. All site workers will be instructed to prevent the discharge of contaminants, including
solid waste, hydrocarbons, solvents, etc.
10. Control De-Watering (the act of pumping groundwater or stormwater away from an active construction site).
No dewatering is expected to be needed.
11. Maintain Best Management Practices(BMPs).
Conditions will be assessed regularly. Construction stormwater management features will be adjusted, repaired and
replaced as needed to maintain full function. Upon completion of each phase,temporary erosion and sedimentation
controls will be removed taking care to not release accumulated sediments.
12. Manage the Project.
Construction activities will be completed in an orderly fashion and coordinated to minimize surface disturbance. Exposed
surface areas will be minimized during all construction phases. Work will not be conducted during periods of intense rainfall.
Temporary erosion and sedimentation controls will be inspected regularliy and adjusted, repaired and replaced as needed to
maintain full function.
2. Adjacent Areas.
a. Description of the adjacent areas that may be affected by site disturbance (e.g., streams, lakes, wetlands, residential
areas, roads).
The nearby stream and associated wetlands are well separated from proposed construction activities. Adjacent surrounding
residential areas will not be affected by construction activities, other than normal construction noise limited to daylight hours.
In order to protect Flagler Road, mud and other debris will be removed from trucks prior to departing the site during construction
activities.
b. Description of the downstream drainage path leading from the site to the receiving body of water(minimum distance of 400
yards).
The small DNR-mapped stream traversing the eastern portion of the parcel flows southward with a relatively shallow grade
approximately 1.5 miles before reaching the north shore of Mystery Bay.
3. Environmentally Sensitive Areas.
a. Description of environmentally sensitive areas that are on or adjacent to the site.
The small DNR-mapped stream and its associated riparian habitat and adjacent 40 to 50 ft wide swath of wetlands
comprise the ESAs on the subject site.
stormwater site plan template.doc—rev.4/28/2014 1 n 9
5
b. Description of special requirements for working in or near environmentally sensitive areas.
No land within 600 ft of the existing stream shall be disturbed.
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).
No erosion problem areas identified on or near the site.
5. Construction Phasing.
a. Construction sequence 1. Site preparation(establishment of construction entrance and truck de-mudding area,
staging of straw bales) 2. Construction of proposed greenhouse.
b. Construction phasing (if proposed)
All work will be completed in one phase.
6. Construction Schedule. Wet season is October 1 through April 30(page 2-21 of the Manual).
Provide a proposed construction schedule. Work to begin as soon as permitted, likely after the 2017
wet season.
II. Wet Season Construction Activities.
a. Proposed wet season construction activities.
Site work involving potential ground disturbances likely to be completed before the fall 2018 wet season.
b. Proposed wet season construction activities for environmentally sensitive areas.
No construction activities area proposed nearby the environmentally sensitive areas.
7. Financial/Ownership Responsibilities.
a. Identify the property owner responsible for the initiation of bonds and/or other financial securities.
Austin D. Smith
b. Describe bonds and/or other evidence of financial responsibility for liability associated with erosion and sedimentation
impacts.
Applicant is self-bonded.
8. Engineering Calculations. Provide Design Calculations on a separate sheet for the following, if applicable.
a. Sediment Ponds/Traps. Not applicable
b. Diversions. NA
c. Waterways. NA
d. Runoff/Stormwater Detention Calculations NA
L . L
stormwater site plan template.doc—rev.4/28/2014 le 10
It
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 knowledge. I also certify that this application is being made with the full knowledge and consent of all
owners the affected property.
1 /x / 17
(LANDO R" AUTHORIZED REPRESENTATIVE SIGNATURE) (DATE)
THIS SPACE MAY BE USED FOR ADDITIONAL NOTES, IF NEEDED:
LOU ITEM
stormwater site plan template doc—rev.4/28/2014
it
Construction Stormwater Pollution Prevention Plan
Temporary Erosion & Sedimentation Control Notes
9272 Flagler Road; Nordland, WA 98358
Parcel Number 021204015
317,948 SF (7.299 acres)
BLD17-00093
Mark Clearing Limits prior to removing trees and shrubs.
Establish Construction Access Construction vehicles shall access the site using the existing driveway. If
construction occurs during the wet season, and if construction vehicle tires collect significant quantities of mud,
quarry spalls shall be installed at this entrance and extending 40 - 60 ft into the parcel, to provide an area for de-
mudding of construction vehicles prior to leaving the site.
Install Sediment Controls including silt fences downhill of area of proposed disturbance unless vegetated
surfaces greater than 25 ft in flow length protect downhill locations from sedimentation.
Stabilize Soils Stabilize temporarily exposed soils with straw as shown on site plan, and where necessary. Cover
soil piles (if any) with secured plastic sheeting if soil will remain in pile for at least 2 days during wet season (7 days
during dry season).
Control Pollutants Prevent discharge or release of all pollutants, including motor oil and construction debris.
Instruct all personnel as to this policy.
Maintain TE&SC Features All Temporary Erosion & Sedimentation Control Features must be inspected regularly,
and maintained & repaired as needed.
Manage Project Assess conditions regularly and adjust construction stormwater management features as
needed.
Full Site Dispersion All site activities and future site development shall comply with WA DOE's BMP 5.30 Full
Dispersion
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Prepared by: Everett A. Sorensen, P.E. Temporary Erosion & Sedimentation Controls
Streamline Environmental, Inc. 9272 Flagler Road
715 Grant Street; Port Townsend, WA 98368-2405
everett@streamlineenv.com; 360-821-9960 Nordland, WA 98358
April 5, 2017 Parcel Number 021204015
STREAMLINE 317,948 SF (7.299 acres)
ENVIRONMENTAL
BLD17-00093
(1.:; 41 417k6A, JEFFERSON COUNTY , '. . LJL\7flPfl
ON.-"? , . i I?,, ii -- -,..tnirv,„„..„,
d 04 DEPARTMENT OF COMMUNITY DEVELOPMENT ,
, 621 Sheridan Street • Port Townsend • Washington 98368 LI '
rq� 0� 360/379-4450 • 360/379-4451 Fax
NTNG http://www.co.jefferson.wa.us/commdevelopment/ 'Ee- SON CQuN-yDc�`
STORMWATER SITE PLAN SUBMITTAL TEMPLATE
MLA## 17-00019 PROJECT/APPLICANT NAME: Austin D. 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 site has an existing SFR, various small sheds and a gravel driveway and parking area. The applicant proposes to
construct a 10,080 SF greenhouse for a cottage industry. The proposed building site is level with no trees requiring removal.
Existing Conditions Summary
2. Describe the existing topography. Indicate contours on the site map.
The existing overall site topography slopes to the east at a grade of about 1 to 3%. The proposed building site is
approximately level.
3. Describe the existing vegetation. Indicate native vegetation areas on the site map.
The site is well vegetated with lawn, shrubs, gardens and native forest. Native forest mainly covers the eastern half of
the parcel, and along much of the parcel perimeter.
4. Describe the existing soils. Indicate soil type on the site map. Native soils on the site consist typically of poorly-drained
fine and very fine material with shallow restrictive layers.
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.
A DNR-mapped creek traverses the parcel north to south in the eastern quarter of the parcel. The creek has a shallow grade and
supports fertile riparian habitat with wetlands extending 20 to 30 ft laterally on each side. Stormwater appears to flow eastward on
the site (west of the creek)over a well-vegetated undulated ground surface.
6. Describe any excess levels of noise generated by the proposed use or activity:
None.
stormwater site plan template.doc—rev.4/28/2014 5
1
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.
The DNR-mapped stream and associated riparian habitat and adjacent wetlands comprise the only environmentally-
sensitive areas on the parcel.
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 site is surrounded by forest and large residential parcels.
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.
The applicant proposes to fully disperse downspout flow per BMP T5.30,from the proposed greenhouse onto well-
vegetated ground surface east of the proposed structure. Tight-lines would transport downspout flow to an area north of
the existing Glendon Biofilter Pods(cross-gradient)to an area that clearly prevents flows from intersecting the existing
septic drainfield.
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.]
No formal treatment facilities are proposed. Natural cleansing of the already-clean downspout flow will be accomplished
by the proposed vegetated flow path.
11. Describe the performance goals and standards applicable to the project.
100%full on-site dispersion, 100% pollution prevention, 100% erosion control during construction.
12. Describe the flow control system.
Downspout flow transported by 90 to 100 ft tight-lines will discharge to erosion-preventing rip rap dispersion areas uphill
from a 600 ft long vegetated flow path that includes a proposed 75'x225'Preserved Area protected by a proposed Stormwater
Drainage Easement.
LOG Eivi
stormwater site plan template.doc—rev.4/28/2014 n �+� 6
13. Describe the water quality system.
No formal water quality system is proposed,other than the propose vegetated flow path.
14. Describe the conveyance system analysis and design.
Roof downspouts; at least one downspout per 700 square ft of roof area. Two 4-inch diameter tight-lines will provide ample
flow capacity(based on previous project experience by Everett A. Sorensen, P.E.)
15. Describe the source of fill material, physical characteristics of fill material, and deposition of excess material.
No imported fill material will be required.
16. Proposed methods of placement and compaction consistent with the applicable standards on Appendix Chapter 33 of the
Uniform Building Code.
Standard building practices using standard construction equipment will be used to compact any fill material consistent
with applicable standards of the UBC.
17. Describe the proposed surfacing material.
The existing driveway and parking area is gravel. Undeveloped surfaces will remain vegetated or be re-vegetated with
native plants, shrubs and grasses.
18. Describe methods for restoration of the site.
Disturbed areas will be re-vegetated with native plants, shrubs and grasses.
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.
No flow control nor treatment facilities are proposed.
20. List here and include any special reports or studies conducted to prepare the Stormwater Site Plan.
Soil evaluation and soil logs were taken from the applicant's 2007 on-site sewage system design by Creative Design
Solutions of Port Angeles.
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.
None
LOG ITEM
stormwater site plan template doc—rev.4/28/2014 7
8 4;.!0:1 v.
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.
No clearing is required. The location of the proposed greenhouse is already clear of trees and shrubs.
2. Establish Construction Access.
Construction access will be limited to the exisitng gravel driveway, depicted on the Site Plan with Existing Conditions
and Proposed Stormwater Management Features prepared by Streamline Environmental, Inc.
3. Control Flow Rates.
No dewatering nor flow diversion will be needed for site development.
4. Install Sediment Controls.
Straw mulch shall be spread to a thickness of a couple inches on any bare ground surfaces until construction is
completed and these areas are re-planted with native shrubs and native grasses. The expected area requiring
straw mulch is shown on the Site Plan with Existing Conditions and Proposed Stormwater Management Features
prepared by Streamline Environmental, Inc.
5. Stabilize Soils.
All disturbed surfaces will be covered with straw mulch at least 2"thick to minimize erosion of these exposed surfaces. Any
soil or sediment left in piles for at least two days during the wet season (7 days during the dry season)will be covered with
plastic, secured around the edges, to prevent erosion.
6. Protect Slopes.
There are no significant slopes requiring protection.
7. Protect Drain Inlets.
There are no storm drains at the site requiring protection.
LOG ITEM
stormwater site plan template.doc—rev.4/28/2014 8
4-
12 Required Elements—Construction SWPPP(continued)
8. Stabilize Channels and Outlets.
There are no channels or outlets at the site.
9. Control Pollutants.
Pollution will be prevented. All site workers will be instructed to prevent the discharge of contaminants, including
solid waste, hydrocarbons, solvents, etc.
10. Control De-Watering (the act of pumping groundwater or stormwater away from an active construction site).
No dewatering is expected to be needed.
11. Maintain Best Management Practices(BMPs).
Conditions will be assessed regularly. Construction stormwater management features will be adjusted, repaired and
replaced as needed to maintain full function. Upon completion of each phase,temporary erosion and sedimentation
controls will be removed taking care to not release accumulated sediments.
12. Manage the Project.
Construction activities will be completed in an orderly fashion and coordinated to minimize surface disturbance. Exposed
surface areas will be minimized during all construction phases. Work will not be conducted during periods of intense rainfall.
Temporary erosion and sedimentation controls will be inspected regularliy and adjusted, repaired and replaced as needed to
maintain full function.
2. Adjacent Areas.
a. Description of the adjacent areas that may be affected by site disturbance (e.g., streams, lakes, wetlands, residential
areas, roads).
The nearby stream and associated wetlands are well separated from proposed construction activities. Adjacent surrounding
residential areas will not be affected by construction activities, other than normal construction noise limited to daylight hours.
In order to protect Flagler Road, mud and other debris will be removed from trucks prior to departing the site during construction
activities.
b. Description of the downstream drainage path leading from the site to the receiving body of water(minimum distance of 400
yards).
The small DNR-mapped stream traversing the eastern portion of the parcel flows southward with a relatively shallow grade
approximately 1.5 miles before reaching the north shore of Mystery Bay.
3. Environmentally Sensitive Areas.
a. Description of environmentally sensitive areas that are on or adjacent to the site.
The small DNR-mapped stream and its associated riparian habitat and adjacent 40 to 50 ft wide swath of wetlands
comprise the ESAs on the subject site.
stormwater site plan template.doc—rev.4/28/2014 1 n 9
5
b. Description of special requirements for working in or near environmentally sensitive areas.
No land within 600 ft of the existing stream shall be disturbed.
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).
No erosion problem areas identified on or near the site.
5. Construction Phasing.
a. Construction sequence 1. Site preparation(establishment of construction entrance and truck de-mudding area,
staging of straw bales) 2. Construction of proposed greenhouse.
b. Construction phasing (if proposed)
All work will be completed in one phase.
6. Construction Schedule. Wet season is October 1 through April 30(page 2-21 of the Manual).
Provide a proposed construction schedule. Work to begin as soon as permitted, likely after the 2017
wet season.
II. Wet Season Construction Activities.
a. Proposed wet season construction activities.
Site work involving potential ground disturbances likely to be completed before the fall 2018 wet season.
b. Proposed wet season construction activities for environmentally sensitive areas.
No construction activities area proposed nearby the environmentally sensitive areas.
7. Financial/Ownership Responsibilities.
a. Identify the property owner responsible for the initiation of bonds and/or other financial securities.
Austin D. Smith
b. Describe bonds and/or other evidence of financial responsibility for liability associated with erosion and sedimentation
impacts.
Applicant is self-bonded.
8. Engineering Calculations. Provide Design Calculations on a separate sheet for the following, if applicable.
a. Sediment Ponds/Traps. Not applicable
b. Diversions. NA
c. Waterways. NA
d. Runoff/Stormwater Detention Calculations NA
L . L
stormwater site plan template.doc—rev.4/28/2014 le 10
It
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 knowledge. I also certify that this application is being made with the full knowledge and consent of all
owners the affected property.
1 /x / 17
(LANDO R" AUTHORIZED REPRESENTATIVE SIGNATURE) (DATE)
THIS SPACE MAY BE USED FOR ADDITIONAL NOTES, IF NEEDED:
LOU ITEM
stormwater site plan template doc—rev.4/28/2014
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Construction Stormwater Pollution Prevention Plan
Temporary Erosion & Sedimentation Control Notes
9272 Flagler Road; Nordland, WA 98358
Parcel Number 021204015
317,948 SF (7.299 acres)
BLD17-00093
Mark Clearing Limits prior to removing trees and shrubs.
Establish Construction Access Construction vehicles shall access the site using the existing driveway. If
construction occurs during the wet season, and if construction vehicle tires collect significant quantities of mud,
quarry spalls shall be installed at this entrance and extending 40 - 60 ft into the parcel, to provide an area for de-
mudding of construction vehicles prior to leaving the site.
Install Sediment Controls including silt fences downhill of area of proposed disturbance unless vegetated
surfaces greater than 25 ft in flow length protect downhill locations from sedimentation.
Stabilize Soils Stabilize temporarily exposed soils with straw as shown on site plan, and where necessary. Cover
soil piles (if any) with secured plastic sheeting if soil will remain in pile for at least 2 days during wet season (7 days
during dry season).
Control Pollutants Prevent discharge or release of all pollutants, including motor oil and construction debris.
Instruct all personnel as to this policy.
Maintain TE&SC Features All Temporary Erosion & Sedimentation Control Features must be inspected regularly,
and maintained & repaired as needed.
Manage Project Assess conditions regularly and adjust construction stormwater management features as
needed.
Full Site Dispersion All site activities and future site development shall comply with WA DOE's BMP 5.30 Full
Dispersion
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Prepared by: Everett A. Sorensen, P.E. Temporary Erosion & Sedimentation Controls
Streamline Environmental, Inc. 9272 Flagler Road
715 Grant Street; Port Townsend, WA 98368-2405
everett@streamlineenv.com; 360-821-9960 Nordland, WA 98358
April 5, 2017 Parcel Number 021204015
STREAMLINE 317,948 SF (7.299 acres)
ENVIRONMENTAL
BLD17-00093