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SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 1 of 22
SEPA ENVIRONMENTAL CHECKLIST
Purpose of checklist: Governmental agencies use this checklist to help determine whether the environmental impacts of your
proposal are significant. This information is also helpful to determine if available avoidance, minimization
or compensatory mitigation measures will address the probable significant impacts or if an environmental
impact statement will be prepared to further analyze the proposal.
Instructions for applicants: This environmental checklist asks you to describe some basic information about your proposal. Please
answer each question accurately and carefully, to the best of your knowledge. You may need to consult
with an agency specialist or private consultant for some questions. You may use “not applicable” or
"does not apply" only when you can explain why it does not apply and not when the answer is unknown.
You may also attach or incorporate by reference additional studies reports. Complete and accurate
answers to these questions often avoid delays with the SEPA process as well as later in the decision-
making process.
The checklist questions apply to all parts of your proposal, even if you plan to do them over a period of
time or on different parcels of land. Attach any additional information that will help describe your proposal
or its environmental effects. The agency to which you submit this checklist may ask you to explain your
answers or provide additional information reasonably related to determining if there may be significant
adverse impact.
Instructions for Lead Agencies:
Please adjust the format of this template as needed. Additional information may be necessary to
evaluate the existing environment, all interrelated aspects of the proposal and an analysis of adverse
impacts. The checklist is considered the first but not necessarily the only source of information needed to
make an adequate threshold determination. Once a threshold determination is made, the lead agency is
responsible for the completeness and accuracy of the checklist and other supporting documents.
Use of checklist for nonproject proposals: For nonproject proposals (such as ordinances, regulations, plans and programs), complete the applicable
parts of sections A and B plus the SUPPLEMENTAL SHEET FOR NONPROJECT ACTIONS (part D). Please
completely answer all questions that apply and note that the words "project," "applicant," and "property or
site" should be read as "proposal," "proponent," and "affected geographic area," respectively. The lead
agency may exclude (for non-projects) questions in Part B - Environmental Elements –that do not
contribute meaningfully to the analysis of the proposal.
A. Background [HELP]
1. Name of proposed project, if applicable:
BDN, LLC Geoduck Farm
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2. Name of applicant:
BDN, LLC
3. Address and phone number of applicant and contact person:
BDN, LLC
3011 Chandler Street
Tacoma, WA, 98409
Contact person: Brad Nelson, (253) 377-3353
4. Date checklist prepared: February 2, 2019, Amended March 31, 2020
5. Agency requesting checklist:
Jefferson County Dept. of Community Development
6. Proposed timing or schedule (including phasing, if applicable):
Construction of Project to begin immediately upon issuance of Jefferson County
Shoreline Conditional Use Permit.
7. Do you have any plans for future additions, expansion, or further activity related to or connected
with this proposal? If yes, explain.
There is no currently planned expansion beyond the areas and activities described in
this document.
8. List any environmental information you know about that has been prepared, or will be prepared,
directly related to this proposal.
A. Biological Evaluation, Marine Surveys and Assessments – 10-28-13 (See
Attachment A)
B. BDN Eelgrass Deliniation and Depth of Culture Survey, Confluence Environmental
Company – 10-16-15 (See Attachement B.)
C. BDN Smersh Farm Visual Assessment‐ 2018, Confluence Environmental
Company – May, 2018 (See Attachment C.)
D. BDN Smersh Farm Cumulative Impacts Report, Confluence Environmental
Company – June, 2018 (See Attachment D.)
E. BDN Smersh Farm Habitat Management Plan and No Net Loss Report - Confluence
Environmental Company – June, 2018 (See Attachment E.)
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F. Proposed Smersh Geoduck Farm: 2018 Zostera marina bed edge re-verification,
Confluence Environmental Company – July 9, 2018 (See Attachment F.)
G. U.S. Army Corps of Engineers – Seattle District, Programmatic Endangered Species
Act (ESA) and Magnuson-Stevens Fishery Conservation and Management Act
Essential Fish Habitat Consultation Specific Project Information Form for Shellfish
Activities in Washington State Inland Marine Waters – November 1, 2016. (See
Attachment G.)
H. Letter from Robert Smith to David Greetham, dated March 29, 2017, and attached
Materials. (See Attachment H.)
I. BDN Aquaculture Gear Management Plan, 10/26/16. (See Attachment I.)
J. BDN Addendum M-1 – Use of Upland Parcel 970200001 Rev. 3/31/20 (See Attachment
M-1)
K. BDN Addendum M-2 – Use of Upland Parcel 821344064 Rev. 3/31/20 (See Attachment
M-2)
L. BDN Addendum M-3 – Use of Hicks Park. 3/31/20 (See Attachment M-3)
M. BDN Addendum M-4 – Use of Shine Boat Ramp. 3/31/20 (See Attachment M-4)
N. BDN Addendum M-5 – Small Stormwater Packet, Parcel 970200001, 3/31/20 (See
Attachment M-5)
O. BDN Addendum M-6 – Small Stormwater Packet, Parcel 821344064, 3/31/20 (See
Attachment M-6)
9. Do you know whether applications are pending for governmental approvals of other proposals
directly affecting the property covered by your proposal? If yes, explain.
Other than any applications that may be required in connection with related upland parcels
970200001 and 821344064, We know of no other pending applications directly affecting the
property covered by our Proposal.
10. List any government approvals or permits that will be needed for your proposal, if known.
We have previously received the following government approvals, which are the only
additional approvals we understand are needed for this project:
A. U.S. Army Corps of Engineers approval under Nationwide Permit (NWP) 48,
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Commercial Shellfish Acquaculture Activities, dated December 19, 2016. (See
Attachment I.)
B. State of Washington Department of Ecology Letter dated January 6, 2017 confirming
that water quality concerns for the Project are adequately addressed and an
Individual 401 certification will not be required. (See Attachment J.)
C. Any approvals required by Jefferson County for the use of upland parcesl
970200001, 821344064, Hicks Park and Shine Boat Ramp.
11. Give brief, complete description of your proposal, including the proposed uses and the size of
the project and site. There are several questions later in this checklist that ask you to describe
certain aspects of your proposal. You do not need to repeat those answers on this page. (Lead
agencies may modify this form to include additional specific information on project description.)
BDN proposes to cultivate Pacific geoduck (Panopea generosa). The planting area will consist
of approximately 5.15 acres, generally between approximately +2 ft. MLLW and a 5-meter (16.4
ft.) buffer of the native eelgrass (Zostera marina) bed edge, located between approximately -
1MLLW and -2 MLLW.
Geoduck seed will be obtained from a certified hatchery and typically planted when 4-5 mm in
size. To protect geoduck seed from predators, PVC tubes 4" in diameter by 10" long will be
placed in the substrate. These will be spaced at approximately one tube per square foot in the
planting area. Only 3" to 5" of the tubes will be exposed above the substrate. Tubes will be
labeled with contact information for BDN. Tube placement will take place at low tides. 12-25
workers will work to plant tubes during each approximately 5-hour shift. This will allow for
approximately 6,000-10,000 tubes to be planted per day. Juvenile geoducks will then be
placed in the installed tubes. Tubes will be covered with a mesh cap and secured with UV-
resistant rubber bands. Planting will begin in spring and continue through fall. At the end of
every shift, any leftover materials (e.g. PVC Tubes, mesh caps, area nets) will be taken back to
the upland staging area above mean higher high water.
Area netting will be Installed over the tubes to prevent dislocation during severe weather and
provide extra protection against predators. The nets, each measuring 40' x 40', will be made of
nylon with a 2" mesh size. Nets would be placed over the entire planted area. BDN anticipates
that the area nets may be used for a maximum of four years to protect geoducks from theft and
predators and to provide additional protection against tube dislodgement. Area netting will be
secured with 24" rebar stakes placed vertically into the substrate as well as rebar stakes laid
horizontally along the netting to ensure that netting does not become dislodged. No fill
materials or other nursery/grow-out structures will be installed on the site.
There will be no removal of native materials from the site during site preparation. Excessive
amounts of macroalgae (e.g. Ulva) may be hand-raked away from the planting area, but will be
left on the site. Successive tides will redistribute algae across the site. The project may result in
the removal of non-native Japanese dwarf eelgrass (Z. japonica) located in the proposed
planted area.
Weekly site inspections will be made to ensure that tubes and netting have not become
dislodged. BDN has implemented an aquaculture gear maintenance plan, appended as
Attachment K, to address potential gear escapement and to facilitate quick recovery of any
gear displaced by storm activity. Site inspections will be generally conducted by 2-4 BDN
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employees walking the tidelands and surrounding areas at low tide. Site maintenance will also
include monitoring and relocation of built-up drift microalgae (e.g. Ulva).
6-12 months after planting, the mesh caps and rubber bands will be removed from the tubes by
hand. The tubes will be removed when the geoducks have reached a depth sufficient to avoid
predators. Gear will be removed at low tide. When the tideland is ready for gear removal,
workers will remove all area nets to expose the tubes for removal. Consistent with Corps
conditions. if any herring spawn is found on the caps or tubes, they will not be removed until
the eggs have hatched. Tubes will be placed in large bags and removed for reuse or proper
upland disposal. Tube and net removal will be done from winter to early summer to avoid Ulva
buildup, as the weight of accumulated Ulva can add thousands of pounds to nets. When
needed, lighting on the beach will be limited to individual LED headlamps. Standard
navigational lighting will be used on vessels.
Seed will be obtained from a certified hatchery and typically planted at 4-5 mm in size. Area
netting will be Installed over the tubes to prevent dislocation during severe weather and provide
extra protection against predators. The nets, each measuring 40' x 40', will be made of nylon
with a 2" mesh size. Nets would be placed over the entire planted area. Once mesh caps
(described below) have been removed, area netting will be put down to contain tubes. BDN
anticipates that the area nets may be used for a maximum of four years to protect geoducks
from predators and to provide additional protection against tube dislodgement. Area nets may
also be placed on the site prior to removal of mesh caps If needed to protect the tubes and
geoducks from dislodgement during severe storm conditions. Area netting will be secured with
24" rebar stakes placed vertically into the substrate as well as rebar stakes laid horizontally
along the netting to ensure that netting does not become dislodged. No fill materials or other
nursery/grow-out structures will be installed on the site.
Usually, harvesting will begin between four and seven years after planting; the exact timing of
harvesting will depend on a variety of environmental and economic factors. The total harvest
window is expected to be 1 year. The majority of harvesting will be conducted at high tides by
divers using surface-supplied air. A small amount of beach harvesting will be conducted during
the "cleanup" harvest phase at the end of the harvesting period when there are fewer
geoducks remaining on the beach. Both dive harvests and beach harvests use the same
extraction equipment. A diesel engine located on the work skiff is used to power a water jet
nozzle that loosens the substrate around each geoduck. The diesel engine will have a muffler
to minimize noise impacts. The water intake hose will include a 2.36 mm wire mesh screen
covering the intake to prevent fish entrainment in the low-pressure pump. The water jet nozzle
is at the end of an approximately 150' long, 2" delivery hose. The nozzle is approximately 16"
long and may supply up to 20-30 gallons of water per minute at 40 psi.
After geoducks are removed from the substrate as described above, they will be stored in
crates located on the work skiff prior to transport off-site. During both dive and beach
harvesting, the work skiff will not be anchored in any native eelgrass beds. Dive harvests will
be conducted during daylight hours. Divers work within a 150' radius of the work skiff at depths
of 5' to 20' using surface supplied air. The vessel engine will be turned off while divers are
working for diver safety. When beach harvesting, the skiff is regularly moved so that it always
remains near the water's edge. Water hoses are then run from the skiff to the beach. Dive
harvests wlll employ 1 diver and 2 support workers in the skiff. Dive harvesting will usually last
up to 5 hours each day for each of two divers. Beach harvests will employ 2 workers on the
beach and 2 support workers on the skiff.
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BDN will comply with Corps' conditions associated with herring, surf smelt, and sand lance
spawning.
For related use of upland parcels 970200001 and 821344064, Hicks park, and Shine Boat
Ramp, see Addendum M-1 through M-6
12. Location of the proposal. Give sufficient information for a person to understand the precise
location of your proposed project, including a street address, if any, and section, township, and
range, if known. If a proposal would occur over a range of area, provide the range or boundaries of
the site(s). Provide a legal description, site plan, vicinity map, and topographic map, if reasonably
available. While you should submit any plans required by the agency, you are not required to
duplicate maps or detailed plans submitted with any permit applications related to this checklist.
Address: 1160 Shine Road, Port Ludlow, WA, 98365
Waterbody: Squamish Harbor
1/4 Section: NW Section, 03 Township, 27N Range 01E
Latitude: 47.865575-47.866644
Longitude: 122.661410 - 122.66364
Tidal elevation: Between -2 and +2 MLL W
B. Environmental Elements [HELP]
1. Earth [help] a. General description of the site:
(circle one): Flat, rolling, hilly, steep slopes, mountainous, other:
Gently Sloping Tidelands
(Note: See Addendum M-1 through M-6 for description of related upland parcels) b. What is the steepest slope on the site (approximate percent slope)?
Approximately 1% slope. The site slopes about 4 feet over its approximately 400 foot width,
from +3 MLLW to -2 MLLW.
c. What general types of soils are found on the site (for example, clay, sand, gravel, peat,
muck)? If you know the classification of agricultural soils, specify them and note any agricultural
land of long-term commercial significance and whether the proposal results in removing any of
these soils.
Substrate at the Smersh site consists mainly of well‐sorted, clean, sand with an adjacent
sandy, gravelly beach.
d. Are there surface indications or history of unstable soils in the immediate vicinity? If so,
describe.
No.
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e. Describe the purpose, type, total area, and approximate quantities and total affected area of any
filling, excavation, and grading proposed. Indicate source of fill.
There is no proposed filling, excavation or grading.
f. Could erosion occur as a result of clearing, construction, or use? If so, generally describe.
No.
g. About what percent of the site will be covered with impervious surfaces after project
construction (for example, asphalt or buildings)?
No impervious surface will be created as part of this project.
h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any:
No erosion is anticipated so no erosion control measures will be implemented.
2. Air [help] a. What types of emissions to the air would result from the proposal during construction, operation,
and maintenance when the project is completed? If any, generally describe and give
approximate quantities if known.
The only anticipated emissions will be from engines and pumps on one small harvest
vessel (under 40’) or from skiff mounted engine-driven pumps when dive or beach
harvesting is occurring on the project. Usually, harvesting will begin between four and
seven years after planting, but the total harvest window is expected to be 1 year.
Dive harvests will be conducted only during daylight hours. Vessel engines will be turned
off while divers are working for diver safety. When beach harvesting, a skiff with a gasoline
powered pump will be used to provide water for extraction. Dive harvesting will usually last up
to 5 hours each day, and beach harvesting will be done only in a low tide window of 3 hours or
less. Thus, the emissions from the use of no more than two small gasoline or diesel engines
associated with harvesting should not have a significant impact on air quality in the vicinity of
the project.
b. Are there any off-site sources of emissions or odor that may affect your proposal? If so,
generally describe.
None that are known to applicant
c. Proposed measures to reduce or control emissions or other impacts to air, if any:
Not applicable.
3. Water [help] a. Surface Water: [help]
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1) Is there any surface water body on or in the immediate vicinity of the site (including
year-round and seasonal streams, saltwater, lakes, ponds, wetlands)? If yes, describe type
and provide names. If appropriate, state what stream or river it flows into.
The Project area consists of Squamish Harbor saltwater tidelands that are exposed
and covered on a daily basis. Shine Creek, a freshwater creek, is approximately 1.5
miles to the west. A small un-named stream enters Squamish Harbor near the
project site.
2) Will the project require any work over, in, or adjacent to (within 200 feet) the described
waters? If yes, please describe and attach available plans.
Yes. See A. 11. above, which describes the nature and extent of all work to be
performed at the site, all of which would be within 200 feet of all described waters except
for Shine Creek.
3) Estimate the amount of fill and dredge material that would be placed in or removed
from surface water or wetlands and indicate the area of the site that would be affected.
Indicate the source of fill material.
There is no proposed filling, excavation or grading.
4) Will the proposal require surface water withdrawals or diversions? Give general
description, purpose, and approximate quantities if known.
No.
5) Does the proposal lie within a 100-year floodplain? If so, note location on the site plan.
Yes, being tidelands, the site lies withing the 100 year flood plain.
6) Does the proposal involve any discharges of waste materials to surface waters? If so,
describe the type of waste and anticipated volume of discharge.
No.
b. Ground Water: [help] 1) Will groundwater be withdrawn from a well for drinking water or other purposes? If so, give a
general description of the well, proposed uses and approximate quantities withdrawn from
the well. Will water be discharged to groundwater? Give general description, purpose, and
approximate quantities if known.
No.
2) Describe waste material that will be discharged into the ground from septic tanks or
other sources, if any (for example: Domestic sewage; industrial, containing the
following chemicals. . . ; agricultural; etc.). Describe the general size of the system, the
number of such systems, the number of houses to be served (if applicable), or the number
of animals or humans the system(s) are expected to serve.
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None.
c. Water runoff (including stormwater): 1) Describe the source of runoff (including storm water) and method of collection
and disposal, if any (include quantities, if known). Where will this water flow?
Will this water flow into other waters? If so, describe.
No runoff (including storm water) will result from Project operations.
2) Could waste materials enter ground or surface waters? If so, generally describe.
No.
3) Does the proposal alter or otherwise affect drainage patterns in the vicinity of the site? If so,
describe.
No.
d. Proposed measures to reduce or control surface, ground, and runoff water, and drainage pattern
impacts, if any:
There should be none needed.
4. Plants [help] a. Check the types of vegetation found on the site:
_ X_ deciduous tree: alder, maple, aspen, other
____ evergreen tree: fir, cedar, pine, other
_ X_ shrubs
__X_ grass
____ pasture
____ crop or grain
____ Orchards, vineyards or other permanent crops.
____ wet soil plants: cattail, buttercup, bullrush, skunk cabbage, other
_X__ water plants: eelgrass
____ other types of vegetation
b. What kind and amount of vegetation will be removed or altered?
There will be no removal of native materials during site preparation. Excessive amounts of
macroalgae (e.g. Ulva) may be hand-raked away from the planting area, but left on the site.
Successive tides will redistribute algae across the site. The project may result in the
removal of non-native dwarf Japanese eelgrass (Zostera japonica) located in the proposed
planted area.
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Macroalgae beds are not found in or near the project area. Green algae (Ulva) were present
at a very low density, attached to a small number of hard objects such as derelict clam shells.
Macroalgae density is anticipated to increase in the project area due to geoduck farming as
the PVC tubes and cover netting provide solid substrate required by macroalgae for
attachment and growth.
Because the project will be located outside of a 16‐foot protective buffer from native eelgrass,
no negative effects are anticipated to occur to eelgrass due to the proposed project and there
may be an ecological lift from the potential increase in other macroalgal species on the tubes
and netting.
c. List threatened and endangered species known to be on or near the site.
No threatened or endangered plant species are found on the site.
d. Proposed landscaping, use of native plants, or other measures to preserve or enhance
vegetation on the site, if any:
All project activity will occur at least 16 feet away from native eelgrass (Zostera marina).
Also see b. above.
e. List all noxious weeds and invasive species known to be on or near the site.
The Washington Department of Fish and Wildlife has classified Z. japonica growing on
commercial aquaculture sites as a "Class C" noxious weed (Pleus 2012). This category is
for abundant, widespread non·native species that are difficult to control. The primary
concern with Z. japonica in relation to shellfish aquaculture is that it occurs on mid-intertidal
areas that were previously bare mud and sand flats. Z. japonica can potentially grow to the
extent that shellfish planting and harvesting cannot be done successfully (Fisher et al.
2011). In addition, extensive Z. japonica can reduce water flow by up to 40% in comparison
to bare mudflats (Tsai et al 2010). Filter-feeding species, including geoduck, could have
their growth or survival affected by this reduction. Given the WDFW classification of Z.
japonica, any loss at the site could be viewed as a positive. However, this classification
does not necessarily mean that Z. japonica presence is detrimental from the perspective of
ecosystem structure and function.
5. Animals [help] a. List any birds and other animals which have been observed on or near the site or are
known to be on or near the site.
Examples include: birds: hawk, heron, eagle, songbirds, other:
mammals: deer, bear, elk, beaver, other:
fish: bass, salmon, trout, herring, shellfish, other ________
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See Attachment A, “Biological Evaluation, Marine Surveys and Assessments –
10/28/13, in particular Section II, Pages 9-12, and Attachments 1 through 4 to that
Evaluation.
b. List any threatened and endangered species known to be on or near the site.
The following fish, marine mammal, and bird species listed under the Endangered Species
Act may occur, or have critical habitat within the proposed action area:
Puget Sound Chinook
Hood Canal Summer-run Chum
Puget Sound Steelhead
Bull Trout
Yelloweye Rockfish
Boccacio Rockfish
Marbled Murrelet
Southern Resident Killer Whale
For more details, see Attachment A, “Biological Evaluation, Marine Surveys and
Assessments – 10/28/13, in particular Section II, Pages 9-12, and Attachments 1 through 4
to that Evaluation.
c. Is the site part of a migration route? If so, explain.
Yes. Hood Canal Summer-run Chum salmon may migrate along the shoreline of the site.
d. Proposed measures to preserve or enhance wildlife, if any:
The protection of juvenile geoduck as provided in 11 above will preserve those shellfish
from predators. Further, see “BDN Smersh Farm Habitat Management Plan and No Net
Loss Report - Confluence Environmental Company – June, 2018 (Attachment E), and BDN
Aquaculture Gear Management Plan, 10/26/16. (Attachment I) for more detailed
description of Project measures to be taken to preserve or enhance wildlife.
e. List any invasive animal species known to be on or near the site.
None.
6. Energy and Natural Resources [help]
a. What kinds of energy (electric, natural gas, oil, wood stove, solar) will be used to meet
the completed project's energy needs? Describe whether it will be used for heating,
manufacturing, etc.
Diesel or gasoline powered small engines will be used to power vessels and harvesting
equipment during the planting, growing and harvesting phases.
b. Would your project affect the potential use of solar energy by adjacent properties?
If so, generally describe.
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No.
c. What kinds of energy conservation features are included in the plans of this proposal?
List other proposed measures to reduce or control energy impacts, if any:
Because the energy use connected with the Project in minimal, there are no specific
conservation measure planned for the Project
7. Environmental Health [help] a. Are there any environmental health hazards, including exposure to toxic chemicals, risk
of fire and explosion, spill, or hazardous waste, that could occur as a result of this proposal?
If so, describe.
1) Describe any known or possible contamination at the site from present or past uses.
There is no known contamination or possible contamination at the site from present or
past uses.
2) Describe existing hazardous chemicals/conditions that might affect project development
and design. This includes underground hazardous liquid and gas transmission pipelines
located within the project area and in the vicinity.
There are no known existing hazardous chemicals/conditions that might affect project
development and design.
3) Describe any toxic or hazardous chemicals that might be stored, used, or produced
during the project's development or construction, or at any time during the operating life
of the project.
The only toxic chemicals anticipated to be stored or used in connection with the Project
are gasoline and diesel fuels for operating land based vehicles, harvest vessels, air
pumps, and water pumps. No toxic chemical will be produced by development or
operation of the Project.
4) Describe special emergency services that might be required.
The only special emergency services that might be required in connection with the
Project would be oil spill response and cleanup. Such services are provided through the
Washington Department of Ecology, and for the Project would most likely be provided by
the WSDOE response team based in Olympia, which provides year- round, statewide,
24-hour a day response services.
5) Proposed measures to reduce or control environmental health hazards, if any:
Land vehicles (e .g. all-terrain vehicles or trucks) shall be washed in an upland area such
that wash water is not allowed to enter any stream, waterbody, or wetland. Wash water
shall be disposed of upland in a location where all water is infiltrated into the ground (i.e.,
no flow into a waterbody or wetland). Land vehicles shall be stored, fueled, and
maintained in a vehicle staging area located 150 feet or more from any stream,
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waterbody, or wetland.
For boats and other gas-powered vehicles or power equipment that cannot be fueled in a
staging area 150 ft. away from a waterbody or at a fuel dock, fuels shall be transferred in
Environmental Protection Agency (EPA)-compliant portable fuel containers 5 gallons or
smaller at a time during refilling. A polypropylene pad or other appropriate spill protection
and a funnel or spill-proof spout shall be used in the event of a spill. A spill kit shall be
available and used in the event of a spill. All spills shall be reported to the Washington
Emergency Management Office at (800) 258-5990. All waste oil or other clean-up
materials contaminated with petroleum products shall be properly disposed of off-site.
All vehicles operated within 150 feet of any stream, waterbody, or wetland shall be
inspected daily for fluid leaks before leaving the vehicle staging area. Any leaks detected
shall be repaired in the vehicle staging area before the vehicle resumes operation and
documented in a record that is available for review on request by any regulatory or
enforcement personnel.
Except as to water-borne boats and vessels, the direct or indirect contact of toxic
compounds including creosote, wood preservatives, paint, etc. with the marine
environment shall be prevented. For water-borne boats and vessels, all paints and other
compounds coming into contact with the water will be approved for such use under all
applicable rules and regulations.
b. Noise 1) What types of noise exist in the area which may affect your project (for example:
traffic, equipment, operation, other)?
The uplands neighboring the proposed Smersh geoduck farm are rural residential, and they
are zoned as shoreline residential under the current Shoreline Master Plan for Jefferson
County. There are numerous single‐family residential houses in the Shine neighborhood
which is bordered on the north side by the heavily trafficked State Route (SR) 104. Between
6,000 and 22,000 vehicles pass the Shine neighborhood each day on SR 104 (15,000
average annual daily trips) traveling at 60 miles per hour (WSDOT 2017). Existing noise in
the area includes that which is typically found associated with water‐dependent activities
(e.g., boat use), residential uses (e.g., vehicle use, lawn mowers, beach walking), and
vehicular traffic. Using the standard that 10 percent of the average annual daily traffic
represents hourly average traffic (WSDOT 2018) leads to 1,500 vehicles per hour passing
near the Shine neighborhood on SR 104. At 60 mph the sound from vehicle traffic is
approximately 75 dBA at 50 feet (WSDOT 2018). This sound level attenuates to
approximately 45 dBA at 800 feet which is approximately the halfway point between the
Smersh parcel and SR 104. The estimated noise level based on population density is
approximately 40 to 45 dBA (FTA 2006).
Measurements of ambient underwater noise were recorded at the Hood Canal Bridge in
2004. Median background peak sound pressure was between 118.2 and 137.5 dBPEAK re 1
μPa and median root mean squared (RMS) levels were 115 and 135 dBRMS re 1 μPa
(Battelle 2005).
2) What types and levels of noise would be created by or associated with the project on a
short-term or a long-term basis (for example: traffic, construction, operation, other)? Indi-
cate what hours noise would come from the site.
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Noise‐generating elements of the proposed project are consistent with existing use of the
surroundings (small boat use and walking on the beach). Both airborne and underwater
noise would be generated from the proposed project when boats are used to access the
project site and during the operation of pumps for harvest on a 5‐ to 7‐year cycle.
The proposed project does not include the use of heavy equipment. Access to the site
would occur about once a month, and more frequently during limited periods for activities
such as planting or harvesting. Access would be via the upland parcels or via boat. The
outboard motors typically used on boats used for aquaculture typically create a noise level
of about 60 dBA at 50 feet (Berger et al. 2010). However, once at the site, boat engines
would be turned off until employees are ready to leave. Small diesel or gas‐powered
water pumps with hoses would be used to harvest the geoducks for several days every 5
to 7 years. While noise levels of the water pumps have not been directly measured, they
are considerably quieter than the outboards, referenced above, that produce a sound level
of 60 dBA at 50 feet. Based on an ambient noise level of approximately 40 dBA to 45 dBA,
terrestrial noise associated with the proposed project is expected to attenuate to ambient
conditions 199 to 285 feet from the pumps. The landward margin of the geoduck planting
area is approximately 160 feet from the ordinary high water line, leading to the conclusion
that nearby residents will be exposed to only slight increases in noise if they approach within
close proximity to the shoreline near the project site.
The loudest noise source proposed for the project) is expected to increase noise levels by
15 dBA to 20 dBA above ambient noise levels (assuming 60 dBA produced by the water
pump and 40 to 45 dBA ambient noise).
Underwater noise would also be generated from the motors on boats used to transport gear
and personnel to the project area and the small engines used for the water pumps during a
geoduck harvest.
For more information on anticipated noise generation, see BDN Smersh Farm Habitat
Management Plan and No Net Loss Report – Confluence Environmental Company – June,
2018 (See Attachment E, pages 9-12.)
3) Proposed measures to reduce or control noise impacts, if any:
There is no evidence that increases in either airborne or underwater noise from the use of
boat motors or water pumps associated with the rearing and harvest of geoducks would
result in negative effects to fish and wildlife species. Noise resulting from aquaculture
operations throughout Washington State was reviewed with respect to potential effects to
fish, marine mammals, and birds listed as threatened or endangered under the Endangered
Species Act (NMFS 2009, USFWS 2009, NMFS 2011). These reviews found that noise
levels did not exceed disturbance thresholds that would affect foraging, migration,
reproduction, or fitness for any of the ESA‐listed species in Puget Sound. The proposed
shellfish aquaculture operation in Squamish Harbor would not significantly alter noise above
existing background conditions. Therefore, harvest operations are not anticipated to
increase underwater noise to a level that will result in a loss of ecological functions, and no
specific measures are planned or needed to reduce or control the already minimal noise
impacts. Nonethless, applicant plans to locate the water pumps used during harvesting in
an insulated box, thereby decreasing pump noise.
8. Land and Shoreline Use [help]
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a. What is the current use of the site and adjacent properties? Will the proposal affect current land
uses on nearby or adjacent properties? If so, describe.
The site is currently vacant tidelands, located on a heavily altered shoreline in a medium‐
density, residential neighborhood. The shoreline has been altered by rip rap hardening.
There is a concrete boat ramp and gravel parking lot on the adjacent public property.
Riparian trees have been removed from a number of the adjacent properties to increase
private views, and a paved roadway is adjacent to the shoreline for approximately 1 mile
next to the Smersh parcel.
The uplands neighboring the proposed Project are rural residential, and they are zoned as
shoreline residential under the current Shoreline Master Plan for Jefferson County. There
are numerous single‐family residential houses in the Shine neighborhood which is bordered
on the north side by the heavily trafficked State Route (SR) 104.
The proposed project will not affect current land uses on nearby or adjacent properties.
For related use of upland parcels 970200001 and 821344064, Hicks park, and Shine Boat
Ramp, see Addendum M-1 through M-6
b. Has the project site been used as working farmlands or working forest lands? If so, describe.
How much agricultural or forest land of long-term commercial significance will be converted to
other uses as a result of the proposal, if any? If resource lands have not been designated, how
many acres in farmland or forest land tax status will be converted to nonfarm or nonforest use?
No.
1) Will the proposal affect or be affected by surrounding working farm or forest land normal
business operations, such as oversize equipment access, the application of pesticides, tilling,
and harvesting? If so, how:
No.
c. Describe any structures on the site.
There are no structures currently on the site
d. Will any structures be demolished? If so, what?
No.
e. What is the current zoning classification of the site?
RR-5 – Rural Residential
f. What is the current comprehensive plan designation of the site?
RR-5 Rural Residential
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g. If applicable, what is the current shoreline master program designation of the site?
Aquatic – Shoreline Residential
h. Has any part of the site been classified as a critical area by the city or county? If so, specify.
Yes. Portions of the Project Area are classified as Wetlands Critical Area, FEMA Flood Zone
Critical Area, Seismic Hazard Critical Area, Seawater Intrusion Protection Zone, and Critical
Aquifer Recharge Area.
i. Approximately how many people would reside or work in the completed project?
12-25 workers will work in 5-hour shifts to plant tubes during the geoduck planting phase,
which will take place once every 5-7 years. The work will be sporadic, depending on tides
and weather, beginning in the spring and lasting through the fall. After planting, weekly site
inspections will be conducted by 2-4 BDN employees walking the tidelands and surrounding
areas at low tide. 6-12 months after planting, the mesh caps and rubber bands will be
removed from the tubes by hand, again by 12-25 workers working in 5-hour shifts. This work
will also be sporadic, depending on tides and weather, and will
be done from winter to early summer.
Usually, harvesting will begin between four to seven years alter planting; the exact timing of
harvesting will depend on a variety of environmental and economic factors. The total harvest
window is expected to be 1 year. Dive harvests will employ 1 diver and 2
support workers in the skiff. Dive harvesting will usually last up to S hours each day for two
divers. Beach harvests will employ 2 workers on the beach and 2 support workers on the
skiff.
j. Approximately how many people would the completed project displace?
None.
k. Proposed measures to avoid or reduce displacement impacts, if any:
None planned, as there will be no displacement.
L. Proposed measures to ensure the proposal is compatible with existing and projected land
uses and plans, if any:
See Attachments C through E for descriptions of the compatability of the project with existing
and projected land uses and plans.
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m. Proposed measures to reduce or control impacts to agricultural and forest lands of long-term
commercial significance, if any:
None are required, as there are no anticipated impacts to agricultural and forest lands of
long-term commercial significance.
9. Housing [help] a. Approximately how many units would be provided, if any? Indicate whether high, mid-
dle, or low-income housing.
No housing units will be provided.
b. Approximately how many units, if any, would be eliminated? Indicate whether high,
middle, or low-income housing.
None
c. Proposed measures to reduce or control housing impacts, if any:
None
10. Aesthetics [help]
a. What is the tallest height of any proposed structure(s), not including antennas; what is
the principal exterior building material(s) proposed?
No structures are proposed. The only artificial objects that will be placed on the subject
tidelands are HDPE plastic 12 mm. mesh, 5” diameter by 14” long geoduck planting tubes,
which will be placed into the sandy substrate at an approximate density of 1 tube per square
foot with 3” to 5” of the tube exposed above the substrate.
These tubes will be stored in open piles or stacks in areas in the northern half of related
upland parcel 8213444032 currently covered by grass or small shrubs. Total coverage of
these piles at any one time will be not more than 4,000 square feet, and the piles will not
exceed 7 feet in height.
b. What views in the immediate vicinity would be altered or obstructed?
15 to 20 homes have unobstructed view of the proposed geoduck planting area when nearby
trees are in the leaf‐off condition. The estimate of 15‐20 homes with unobstructed
views will be reduced during the summer when trees have a cover of leaves that are likely to
more fully block views. For more detail on potential and actual visual obstruction, see
Attachment C, BDN Smersh Farm Visual Assessment‐ 2018, Confluence Environmental
Company – May, 2018.
Tubes stored on related Parcel 8213444032, or vehicles temporarily parked there may be
visible to a minor degree from three nearby homes.
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c. Proposed measures to reduce or control aesthetic impacts, if any:
The proposed project will be visible for only short duration during very low tides. Geoduck
tubes and netting will quickly take on a natural color due to colonization by aquatic flora and
fauna. Maintenance will occur monthly, and after any storm events, to ensure farm is tidy and
tubes have not become dislodged. While not in use, equipment will be stored off-site.
Piles of stored tubes on upland parcel 8213444032 will be restricted to 7 feet in height and no
more than 4000 square feet of total coverage. (See Addendum M-2)
11. Light and Glare [help]
a. What type of light or glare will the proposal produce? What time of day would it mainly
occur?
The project will not produce any significan light or glare.
b. Could light or glare from the finished project be a safety hazard or interfere with views?
No.
c. What existing off-site sources of light or glare may affect your proposal?
None.
d. Proposed measures to reduce or control light and glare impacts, if any:
Not applicable.
12. Recreation [help]
a. What designated and informal recreational opportunities are in the immediate vicinity?
The only nearby designated recreational opportunity is the neighboring park, which is primarily
a boat launching ramp, usable at high tide only, with an associated gravel parking lot. The
main informal recreational activites are beach walking by resident and visitors at low tide, and
use of the water over the project at high tide by recreational boaters.
b. Would the proposed project displace any existing recreational uses? If so, describe.
The boat ramp is only useable during high tide, when the geoduck tubes would be submerged,
so there is no displacement of that use. There will be no impacts to beach access as the
project is located on private tidelands that are not currently accessible by the public. The
project will not impact recreational boating use in any significant way. Dive harvest vessels will
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SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 19 of 22
be small, and moored over the project tidelands in such a way as to not significantly interfere
with other vessels in the area.
c. Proposed measures to reduce or control impacts on recreation, including recreation
opportunities to be provided by the project or applicant, if any:
None are proposed, as none are necessary
13. Historic and cultural preservation [help]
a. Are there any buildings, structures, or sites, located on or near the site that are over 45 years
old listed in or eligible for listing in national, state, or local preservation registers ? If so,
specifically describe.
No such structures or sites exist in the project area.
b. Are there any landmarks, features, or other evidence of Indian or historic use or occupation?
This may include human burials or old cemeteries. Are there any material evidence, artifacts, or
areas of cultural importance on or near the site? Please list any professional studies conducted
at the site to identify such resources.
No landmarks, features, or other evidence of Indian or historic use or occupation are known to
exist at the site.
c. Describe the methods used to assess the potential impacts to cultural and historic resources on
or near the project site. Examples include consultation with tribes and the department of
archeology and historic preservation, archaeological surveys, historic maps, GIS data, etc.
No consultations or studies have been undertaken, since the project consists of bare tidelands
with no evidence of any prior habitation or human use.
The Corps of Engineers has determined that cultural resource surveys are not required for this
project.
d. Proposed measures to avoid, minimize, or compensate for loss, changes to, and disturbance to
resources. Please include plans for the above and any permits that may be required.
No specific measures are proposed.
14. Transportation [help] a. Identify public streets and highways serving the site or affected geographic area and describe
proposed access to the existing street system. Show on site plans, if any.
Land access to the project site is via Shine Road, a public street running parallel to the
shoreline and serving the adjacent tidelands and upland properties. Public Highway SR 104
runs roughly parallel to the shoreline and at the location of the project is about ¼ mile north of
Shine road.
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b. Is the site or affected geographic area currently served by public transit? If so, generally
describe. If not, what is the approximate distance to the nearest transit stop?
The site is not directly served by public transit, but the Jefferson Transit Route #7, Poulsbo, has
a bus stop approximatsly 1.2 miles to the East at the western end of the Hood Canal bridge.
c. How many additional parking spaces would the completed project or non-project proposal
have? How many would the project or proposal eliminate?
The project will not require any additional parking spaces, and will not eliminate any existing
parking spaces.
d. Will the proposal require any new or improvements to existing roads, streets, pedestrian, bicycle
or state transportation facilities, not including driveways? If so, generally describe (indicate
whether public or private).
No.
e. Will the project or proposal use (or occur in the immediate vicinity of) water, rail, or air
transportation? If so, generally describe.
No.
f. How many vehicular trips per day would be generated by the completed project or proposal? If
known, indicate when peak volumes would occur and what percentage of the volume would be
trucks (such as commercial and nonpassenger vehicles). What data or transportation models
were used to make these estimates?
During active planting and beach harvest activites, about ten to twenty passenger vehicle trips,
and one or two truck trips (to deliver or load geoducks or other project materials) will be
generated each day. During beach inspection periods, one to two passenger vehicle trips will
be generated each day. During waterborne harvesting, one or two truck trips (to deliver or load
geoducks or other project materials) will be generated each day. No data or transportation
models were used to make these estimates.
See also Addendums M-1 through M-6 for vehicle use of related upland parcels.
g. Will the proposal interfere with, affect or be affected by the movement of agricultural and forest
products on roads or streets in the area? If so, generally describe.
No.
h. Proposed measures to reduce or control transportation impacts, if any:
None needed or planned.
15. Public Services [help]
a. Would the project result in an increased need for public services (for example: fire protection,
police protection, public transit, health care, schools, other)? If so, generally describe.
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Proposed measures to avoid or reduce such increases are:
2. How would the proposal be likely to affect plants, animals, fish, or marine life?
Proposed measures to protect or conserve plants, animals, fish, or marine life are:
3. How would the proposal be likely to deplete energy or natural resources?
Proposed measures to protect or conserve energy and natural resources are:
4. How would the proposal be likely to use or affect environmentally sensitive areas or
areas designated (or eligible or under study) for governmental protection; such as parks,
wilderness, wild and scenic rivers, threatened or endangered species habitat, historic or
cultural sites, wetlands, floodplains, or prime farmlands?
Proposed measures to protect such resources or to avoid or reduce impacts are:
5. How would the proposal be likely to affect land and shoreline use, including whether it
would allow or encourage land or shoreline uses incompatible with existing plans?
Proposed measures to avoid or reduce shoreline and land use impacts are:
6. How would the proposal be likely to increase demands on transportation or public
services and utilities?
Proposed measures to reduce or respond to such demand(s) are:
7. Identify, if possible, whether the proposal may conflict with local, state, or federal laws or
requirements for the protection of the environment.
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BDN, LLC – SEPA Checklist Addendum M-1
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SEPA Checklist - BDN, LLC Geoduck Farm – Rev. 3/31/20
Addendum M-1 – Use of Upland Parcel 970200001
Description of Property and Potential Usage.
This parcel is owned by applicant James Smersh. It consists of .29 acres of unimproved land,
zoned Rural Residential RR-5, Assessor’s Land Use Code 9100-Vacant Land. It is accessed at
its northwest corner via a recorded easement across the adjacent parcel 970200002 immediately
Parcel 970200001
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BDN, LLC – SEPA Checklist Addendum M-1
Page - 2
to the west, owned by Bruce A. Olsen. That easement is roughly co-extensive with the roadway
visible to the left of the parcel in the above photo.
The Google Earth Imagery Date for this photo is 5/13/2018, and shows it being used by the
applicant for storage of three small personal watercraft in the upper northeast area, and storage
by BDN, LLC of white PVC geoduck planting tubes connected with existing nearby BDN
aquaculture operation. There are two BDN trailers parked temporarily on the property as shown
to the left of the PVC tubes. Since the date of the photo, all BDN items have been removed from
the property, and it is once again being used only for storage of the personal watercraft.
Because BDN has now acquired a nearby parcel (821344064) for storage and staging as
described elsewhere in this SEPA Checklist, there will be no future storage of BDN tubes or
other materials on parcel 970200001. It will be used solely as a secondary parking area for
activities related to the operation of the proposed aquaculture project.
There will be no clearing, grading or construction of any kind on this parcel by BDN, LLC, and
no impervious surfaces will be created. This property is not within 150 feet of any waterbody, is
not within 150 feet of any known Type F, N or S streams, is not a wetland, and is not in a
Shoreline Jurisdiction. It is not within a FEMA Flood Zone, Landslide Hazard Area, Soil Erosion
Area or Soil Seismic Area. It is within a Critical Aquifer Recharge Area and a Saltwater
Intrusion Protection Zone, but no activities proposed on the property will in any way impact the
parcels aquifer or saltwater intrusion functions or characteristics.
The only BDN use anticipated for this parcel will be as follows:
1) Parking of one or two passenger vehicles or light trucks on the parcel for 1-2 hours once
weekly for regular beach inspections of geoduck gear.
2) Parking of one or two passenger vehicles or light trucks on the parcel in connection with
emergency responses per the applicable Gear Management Plan. From prior BDN
experience in the area, such emergency responses occur on less than five days per year,
typically in the winter and sometimes at night.
3) Parking of a maximum of 6 passenger vehicles or light trucks on the parcel for no more
than 5 hours per day during planting or harvesting activities. However, it is anticipated
that BDN parcel 821344064 will be the primary parking and staging area for these
operations, such that related parking on this parcel will take place an average of less than
ten days per year.
Cumulative Impacts of the Use of This Parcel by BDN
By far the dominant vehicle traffic impact on the area is from the 24-hour-per-day, seven-days-
per-week vehicle traffic on Shine Road, which passes a few hundred feet from both the existing
and proposed BDN projects. The addition of the very few additional vehicle trips and parking
activities as described in the annotated site plan (BDN004R) will have at most a tiny cumulative
effect on the project area when compared to the constant visual and noise impact from Shine
Road and the surrounding feeder roads, especially since regular parking will be provided for all
beach workers on parcel 821344064 as necessary.
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BDN, LLC – SEPA Checklist Addendum M-1
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The SMP defines “Cumulative impacts” or “cumulative effects” as “the combined impacts of a
proposed development action along with past impacts and impacts of reasonably foreseeable
future development actions. (JCC 18.25.100(3)(aa)). “Reasonably foreseeable” is defined as
“predictable by an average person based on existing conditions, anticipated build-out, and
approved/pending permits.” (JCC 18.25.100(18)(d))
Similarly, the National Environmental Policy Act (“NEPA”) requires the consideration of the
cumulative impacts of the Project, which include both direct effects, defined as those impacts
"caused by the action and occur[ing] at the same time and place" and indirect effects, which are
impacts "caused by the action and are later in time or farther removed in distance, but are still
reasonably foreseeable." 40 C.F.R. § 1508.8. Note that although indirect effects may be removed
in distance from the proposed action, they nonetheless must be caused by that action; i.e., there
must be a "reasonably close relationship" between the environmental effect and alleged cause.
Department of Transportation v. Public Citizen, 541 U.S. 752, 767 (2004).
The miniscule additional vehicle traffic generated by infrequent parking of vehicles on the parcel
as described above will have no significant cumulative impact on the areas surrounding the
parcel, either nearby or distant, while facilitating an aquaculture usage that is preferred under
Washington law (RCW 90.58.020.)
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BDN, LLC – SEPA Checklist Addendum M-2
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SEPA Checklist - BDN, LLC Geoduck Farm – Rev. 3/31/20
Addendum M-2 – Upland Parcel 821344064
Description of Property and Potential Usage.
This parcel is owned by BDN, LLC (“BDN”.) It consists of 1.26 acres of unimproved land,
zoned Rural Residential RR-5, Assessor’s Land Use Code 9100-Vacant Land. It is accessed at
its southwest corner via a 30’ wide recorded easement 821344064 (Vol 2 Short Plats, Page 166,
records of Jefferson County) across the adjacent parcel 821344029 to the south, owned by Alona
Parcel 821344064
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J. Cowing, and the along parcel 821344032 to the south of 821344029, owned by Mary
Cameron, ending at Shine Road. That easement is roughly co-extensive with the dirt roadway
visible to the lower left of the parcel in the above photo.
The Google Earth Imagery Date for this photo is 5/13/2018, and shows it as vacant land covered
with grasses, small bushes, and three medium sized conifer trees at its northern end.
The usage proposed by BDN of this parcel will be:
1) Storage during BDN geoduck aquaculture planting, growing and harvest activities of
HDPE plastic 12 mm. mesh, 5” diameter by 14” long geoduck planting tubes. These
flexible, compressible tubes will be stored in open piles or stacks in areas in the northern
half of the parcel currently covered by grass or small shrubs. Total coverage of these
piles at any one time will be not more than 4,000 square feet, and the piles will not
exceed 7 feet in height. These piles will allow free draining of precipitation to the
unimproved land beneath them, and due to their light weight will not significantly
compact the surface of the parcel.
The Pacific Northwest Pollution Prevention Resource Center found no evidence of any
widespread health problems related to the use of HDPE, which is approved for use in
food, beverage and potable water applications. (“Is High-density Polyethylene (HDPE)
a Good Choice For Potable Water?: https://pprc.org/2015/p2-rapid/is-high-density-
polyethylene-hdpe-a-good-choice-for-potable-water/ June 2015.2) There are no known
studies indicating that the amount of HDPE components that might be introduced into
the environment through the storage of HDPE mesh bags on the property has any
adverse environmental effect, immediate or cumulative, on the environment.
2) Parking on the parcel of one to two light trucks and/or light trailers used for
delivering or removing materials to or from parcel.
3) Parking of one or two passenger vehicles or light trucks on the parcel for 1-2 hours
once weekly for regular beach inspections of geoduck gear.
3) Parking of one or two passenger vehicles or light trucks on the parcel in connection
with emergency responses per the applicable Gear Management Plan. From prior BDN
experience in the area, such emergency responses occur on less than five days per year,
typically in the winter and sometimes at night.
4) Parking of a maximum of 6-8 passenger vehicles or light trucks on the parcel for no
more than 5 hours per day during planting or harvesting activities.
There will be no clearing, grading or construction of any kind on this parcel by BDN, LLC, and
no impervious surfaces will be created. This property is not within 150 feet of any waterbody, is
not within 150 feet of any known Type F, N or S streams, is not a wetland, and is not in a
Shoreline Jurisdiction. It is not within a FEMA Flood Zone, Landslide Hazard Area, Soil Erosion
Area or Soil Seismic Area. It is within a Critical Aquifer Recharge Area and a Saltwater
Intrusion Protection Zone, but no activities proposed on the property will in any way impact the
parcels aquifer or saltwater intrusion functions or characteristics.
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Cumulative Impacts of the Use of This Parcel by BDN
Materials stored on the parcel will be visible only to the three neighbors immediately adjacent to
the parcel. The small piles of black mesh tubes will be unobtrusive and the small amount of
associated vehicle traffic will be much, much less from a noise and pollution standpoint than the
high volume of 24-hour-per-day, seven-days-per-week vehicle traffic on the heavily used SR 104
highway immediately adjacent to the parcel.
The SMP defines “Cumulative impacts” or “cumulative effects” as “the combined impacts of a
proposed development action along with past impacts and impacts of reasonably foreseeable
future development actions. (JCC 18.25.100(3)(aa)). “Reasonably foreseeable” is defined as
“predictable by an average person based on existing conditions, anticipated build-out, and
approved/pending permits.” (JCC 18.25.100(18)(d)).
Similarly, the National Environmental Policy Act (“NEPA”) requires the consideration of the
cumulative impacts of the Project, which include both direct effects, defined as those impacts
"caused by the action and occur[ing] at the same time and place" and indirect effects, which are
impacts "caused by the action and are later in time or farther removed in distance, but are still
reasonably foreseeable." 40 C.F.R. § 1508.8. Note that although indirect effects may be removed
in distance from the proposed action, they nonetheless must be caused by that action; i.e., there
must be a "reasonably close relationship" between the environmental effect and alleged cause.
Department of Transportation v. Public Citizen, 541 U.S. 752, 767 (2004).
The on-site storage of light, permeable HDPE mesh tubes, and the small amount of related
vehicle traffic generated by parking of vehicles on the parcel as described above will have no
significant cumulative impact on the areas surrounding the parcel, either nearby or distant, while
facilitating an aquaculture usage that is preferred under Washington law (RCW 90.58.020.)
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BDN, LLC – SEPA Checklist Addendum M-3
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SEPA Checklist - BDN, LLC Geoduck Farm – Rev. 3/31/20
Addendum M-3 – Hicks Park
Description of Property and Potential Usage.
This approximately 1 acre Jefferson County Park is located at 1090 Shine Rd, Port Ludlow, WA
98365, adjacent to the proposed BDN project to the west. It has a boat ramp, vault toilet, BBQ
grill, two picnic tables, and a campfire ring. No alcohol is allowed in the park pursuant to RCW
66.44.100.
BDN does not propose to use the boat ramp at this facility for any purpose. The only potential
use of Hicks park would be parking of one or two passenger vehicles or light trucks on the parcel
for 1-2 hours once weekly for regular beach inspections of geoduck gear, and possible parking of
one or two passenger vehicles or light trucks on the parcel in connection with emergency
responses per the applicable Gear Management Plan. From prior BDN experience in the area,
such emergency responses occur on less than five days per year, typically in the winter and
sometimes at night.
BDN personnel will be instructed not to use the parking facilities at Hicks Park if there are any
other members of the public present there using the facilities in any way. In such cases, they will
be instructed to park either at nearby parcel 970200001, owned by Applicant (See Addendum M-
1) or at parcel 821344064, owned by BDN.
William R. Hicks Park
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Cumulative Impacts of the Use of This Parcel by BDN
The SMP defines “Cumulative impacts” or “cumulative effects” as “the combined impacts of a
proposed development action along with past impacts and impacts of reasonably foreseeable
future development actions. (JCC 18.25.100(3)(aa)). “Reasonably foreseeable” is defined as
“predictable by an average person based on existing conditions, anticipated build-out, and
approved/pending permits.” (JCC 18.25.100(18)(d)).
Similarly, the National Environmental Policy Act (“NEPA”) requires the consideration of the
cumulative impacts of the Project, which include both direct effects, defined as those impacts
"caused by the action and occur[ing] at the same time and place" and indirect effects, which are
impacts "caused by the action and are later in time or farther removed in distance, but are still
reasonably foreseeable." 40 C.F.R. § 1508.8. Note that although indirect effects may be removed
in distance from the proposed action, they nonetheless must be caused by that action; i.e., there
must be a "reasonably close relationship" between the environmental effect and alleged cause.
Department of Transportation v. Public Citizen, 541 U.S. 752, 767 (2004).
The potential limited use of Hicks Park as described above will have virtually no cumulative
impact on the park, either nearby or distant. No BDN personnel will ever interfere in any way
with use of the park by members of the public. On average, between 275 and 325 vehicles per
day pass by the park on the adjacent Shine Road (Shine Road Speed Limit and Traffic Study,
October 2018, Jefferson County Public Works.) The Noise and pollution generated by traffic on
the adjacent Shine Road dwarfs the miniscule addition of one or two weekly passenger vehicle
visits to the park for 1-2 hours.
Log Item 29
Page 30 of 68
BDN, LLC – SEPA Checklist Addendum M-4
Page - 1
SEPA Checklist - BDN, LLC Geoduck Farm – Rev. 9/27/19
Addendum M-4 – Use of Shine Tidelands State Park Boat Launch Ramp
Description of Property and Potential Usage.
This 249 acre seasonal day use State Park is located at Shine Tidelands State Park Road, Port
Ludlow, WA. At its extreme south end, adjacent to the northwestern abutment of the Hood
Canal Bridge, is a paved public boat launch ramp.
The only part of the park that may be used by BDN is the boat launch area. BDN will use the
ramp for the loading and launching of a small watercraft (less than 30 feet.) One light truck
vehicle will tow the watercraft to the launch ramp, and will launch and retrieve it. Launching
and retrieving will require 15 minutes or less.
During planting activities, another light truck vehicle will tow an accompanying open trailer of
supplies (with 5’ sides) to be loaded into the boat and used in the planting of parcel 721031007.
Planting related activities will involve at most one daily launching and retrieval of the vessel, and
Shine Tidelands State Park
Boat Launch Ramp
Log Item 29
Page 31 of 68
BDN, LLC – SEPA Checklist Addendum M-4
Page - 2
1-3 supply trips by the accompanying trailer. Planting activities will occur once per year,
typically in June or July, over a period of 20-25 days.
During harvesting activities, another light truck vehicle will tow an accompanying open trailer
(with 5’ sides) to be loaded at the launch ramp with harvested geoducks from parcel 721031007.
Harvesting related activities will involve at most one daily launching and retrieval of the vessel,
and 1-3 trips by the accompanying trailer. Harvesting activities will occur between four and
seven years after an area of parcel 721031007 has been planted, and that planted area will
typically be harvested over a one year period. Harvesting activities at this location will occur
only during daylight hours, over a period of about 5 hours per day, three days a week during that
one year period.
From usage connected with other previously approved BDN activities, it is clear that the Shine
Tidelands State Park boat launch facility has very low public usage, due to the lack of a dock, a
poorly configured boat launch ramp, and bad currents at the point of launching. No public use of
this area has ever been observed while BDN has conducted any activities there. Nonetheless,
BDN personnel will be instructed to allow all members of the public priority in using the ramp.
If anyone is present at the launch area when BDN arrives, the BDN personnel will wait until that
party completes their use of the ramp before commencing any BDN operations there.
Cumulative Impacts of the Use of This Parcel by BDN
The SMP defines “Cumulative impacts” or “cumulative effects” as “the combined impacts of a
proposed development action along with past impacts and impacts of reasonably foreseeable
future development actions. (JCC 18.25.100(3)(aa)). “Reasonably foreseeable” is defined as
“predictable by an average person based on existing conditions, anticipated build-out, and
approved/pending permits.” (JCC 18.25.100(18)(d)).
Similarly, the National Environmental Policy Act (“NEPA”) requires the consideration of the
cumulative impacts of the Project, which include both direct effects, defined as those impacts
"caused by the action and occur[ing] at the same time and place" and indirect effects, which are
impacts "caused by the action and are later in time or farther removed in distance, but are still
reasonably foreseeable." 40 C.F.R. § 1508.8. Note that although indirect effects may be removed
in distance from the proposed action, they nonetheless must be caused by that action; i.e., there
must be a "reasonably close relationship" between the environmental effect and alleged cause.
Department of Transportation v. Public Citizen, 541 U.S. 752, 767 (2004).
The potential limited use of the Shine Tidelands State Park boat launch facility as described
above will have virtually no cumulative impact on the park or any other areas, either nearby or
distant. No proposed activities at this location will in any way impact any nearby waterbodies or
streams in any way that differs from impacts by the general public using the park. No BDN
personnel will ever interfere in any way with use of the ramp or the other areas of the park by
members of the public. On average, between 15,000 to 22,000 vehicles per day traverse the
adjacent Hood Canal Bridge (Study of SR104:US101 to SR3 and SR3:SR104 to SR305,
WSDOT.) The Noise and pollution generated by traffic on the adjacent Hood Canal Bridge
dwarfs the miniscule addition of the above-described vehicle and trailer trips.
Log Item 29
Page 32 of 68
Start HERE! A guide to using stormwater forms
Use the quantities reported in this worksheet to determine which minimum requirements apply to your project
and what forms will be required using the “Flow Chart for Determining Minimum Requirements.”
Step 1
Yes no
All projects must read and complete the Stormwater Calculation Worksheet.
Small Projects may submit the Worksheet S Small Project Certification sheet. Applicants who are able to sign the
certification may STOP HERE. Submit the Stormwater Calculation Worksheet and Worksheet “S” with your appli-
cation. No additional submittal is necessary.
Step 2
Step 2.1
Step 2.1 Medium Projects must complete worksheets A1, B1, and C or equivalent. Large Projects refer to Worksheet L to
determine applicable worksheets are required or if a state -licensed engineer must prepare the submittal.
A Note on Engineered Stormwater Submittal:
-Many applicants complete stormwater submittal forms independently without professional expertise. For example, full
dispersion, if feasible on the site (See Worksheet C), is typically easiest to implement for many different surface types suc h as
roof, driveway, patio etc.
-Applicants may opt to submit an engineered stormwater plan even if it isn’t required. This option may be attractive to those who
are unsure how some of the requirements will be achieved on the site.In some instances, engineering will be required. Certain
Large projects must be engineered (See Worksheet L). Gathering information on infiltration feasibility may need an engineer ’s
expertise. Or, sites with greater than 15% slopes may require applicants hire a geologist to recommend if a drainage method i s
appropriate. Discharging directly to a marine water via tightline must be engineered. If you cannot do full dispersion on par cels
larger than 5 acres, engineering is required. In other instances, site constraints will require an engineered design.
-Jefferson County staff may assist by providing and/or explaining Department of Ecology Stormwater Management Manual
The project requires or the applicant elects to submit an engineered stormwater plan. The plan is attached hereto
with minimum requirement narrative, drawings, calculation, modeling output, construction pollution prevention
plan, and site plan.
Circle one:
Step 3
If you answered YES above, STOP, no further submittal is required. Otherwise, proceed with the following steps.
Complete Worksheet A1 Medium/Large Project Report and Stormwater Site Plan or equivalent.
Step 3.1 Complete Worksheet C to determine which BMPs are possible and appropriate for your site. Circle the first BMP
that is feasible (i.e. none of the infeasibility criteria is checked) for each surface type. Circle the corresponding
BMP on Worksheet A1.
Step 4 Complete Worksheet B1 Medium/Large Project Construction Pollution Prevention Plan and Worksheet B2
Construction Site Plan or equivalent.
A Note on Commercial Projects:
•Jefferson County Public Works (JCPW) reviews commercial projects and charges a review fee. JCPW may charge additional
fees for any required inspections.
•Any commercial projects proposing infiltration facilities may complete Worksheet E —Infiltration Test. Grain size analysis may
be used instead of PIT. Commercial projects may elect to use BMP T5.10A and would not need a PIT, just a soil evaluation.
•Any development for cottage industries may require a commercial public works review if full dispersion is infeasible.
BDN, LLC SEPA CHECKLIST - Addendum M-5
Log Item 29
Page 33 of 68
stormwater calc worksheet QR code – REV. 5/31/2019 page 1 of 2
DEPARTMENT OF COMMUNITY DEVELOPMENT
621 Sheridan Street, Port Townsend, WA 98368
Tel: 360.379.4450 | Fax: 360.379.4451
Web: www.co.jefferson.wa.us/communitydevelopment
E-mail: dcd@co.jefferson.wa.us
STORMWATER CALCULATION WORKSHEET
PARCEL # PROJECT/APPLICANT NAME:
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 re quired 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.
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 of plant species, other than noxious weeds, 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:
Does the project convert ¾ acres or more of
Construction site for structures _________________ sq/ft native vegetation to lawn or landscaped areas?
Drainfield, septic tank, etc. ____________________ sq/ft Circle: Yes No
Well, utilities, etc. ___________________________ sq/ft Does the project convert 2 ½ acres or more of
native vegetation to pasture?
Driveway, parking, roads, etc. ___________________sq/ft
Circle: Yes No
Lawn, landscaping, etc. ______________________ sq/ft
Other compacted surface, etc. _________________ sq/ft Indicate Total Volumes of Proposed:
(Includes BMP T5.13 Fill Volume)
Temporary construction area ______________ sq/ft
Total Land Disturbance ____________________ sq/ft Cut __________ Fill __________ (cu/yd)
PARCEL SIZE (I.E., SITE)
Size of parcel _________ acres An acre contains 43,560 square feet. Multiply the acreage by this figure.
Size of parcel in square feet _________________ sq/ft
Scan the QR
code to access
the digital form
BDN, LLC
o
o
970200001
.29
12,632
0
0
0
0
0
0
0
0 0 0
Log Item 29
Page 34 of 68
Log Item 29
Page 35 of 68
This is a "large" project.
Large projects refer to
Worksheet L for submittal
requirements. At a
minimum, all large Project
must submit Worksheet
A1, B1, and C or
equivalent.
This is a "medium"
project. Submit
Worksheet A1,B1
and C or
equivalent.
Complete "Small" Project Certification Worksheet
Project must follow Construction Pollution Prevention Fact Sheet
Figure 2.4.1 Flow Chart for New Development
o
o
o
o
o
Log Item 29
Page 36 of 68
This is a "large" project. Large projects refer to Worksheet L for
submittal requirements. At a minimum, all large Project must submit
Worksheet A1, B1, and C or equivalent.
Figure 2.4.2 Flow Chart for Redevelopment
Log Item 29
Page 37 of 68
construction Pollution Prevention Page 1 of 3 5/31/2019
DEPARTMENT OF COMMUNITY DEVELOPMENT
621 Sheridan Street, Port Townsend, WA 98368
Tel: 360.379.4450 | Fax: 360.379.4451
Web: www.co.jefferson.wa.us/communitydevelopment
E-mail: dcd@co.jefferson.wa.us
CONSTRUCTION STORMWATER POLLUTION PREVENTION
Best Management Practices (BMPs) Fact Sheet
For “small” projects (as determined through the Stormwater Calculation Worksheet), submit Worksheet
“S” Small Project Certification. Additionally, the applicant shall consider the twelve Construction
Stormwater Pollution Prevention elements and implement applicable BMPs. A set of useful BMPs for
typical rural residential construction is attached. There is no additional submittal required as part of the
permit application.
For “medium” and “large” projects, applicants must submit a Construction Stormwater Pollution
Prevention Plan (SWPPP) and a Stormwater Site Plan (applicants may use Worksheet B1 or equivalent).
The following twelve elements must be considered for Construction Stormwater Pollution Prevention
before and during the construction phase of the project:
1.Mark Clearing Limits 7.Protect Drain Inlets
2.Establish Construction Access 8.Stabilize Channels and Outlets
3.Control Flow Rates 9.Control Pollutants
4.Install Sediment Controls 10.Control De-Watering
5.Stabilize Soils 11.Maintain Best Management Practices
6.Protect Slopes 12.Manage The Project
Each of the twelve elements is described in more detail below:
1.Mark Clearing Limits
By minimizing the limits of clearing on the site, a builder can minimize stormwater runoff and provide
effective control of pollution.
2.Establish Construction Access
Much of the sediment that leaves a construction site does so on the wheels of delivery and construction
vehicles that drive off a project site. Construction access must be limited to a single location and a
properly constructed Stabilized Construction Entrance (BMP C105) should be included on the site.
3.Control Flow Rates
Stormwater that leaves a project site unimpeded may exceed the capacity of the existing stormwater
control facilities downstream and may contain sediment that may be deposited as the velocity of the
runoff decreases. Stormwater protection on a construction site should include measures to control the
flow rate of runoff from the site. This can be done by installing a Sediment Trap (BMP C240) or other
measure that will impede the flow of water off a construction site.
4.Install Sediment Controls
In addition to limiting the rate of stormwater flow off a construction site, measures should be put in place
to treat the runoff and remove sediment. Limiting of the cleared area (Element 1) will assist in this effort,
but there will be exposed soils that may move with the runoff. Suggested BMPs for controlling sediment
include Straw Wattles (BMPC235), Brush Barrier (BMP C231), Gravel Filter Berm (BMP C232), and Silt
Fence (BMP C233). Installation of a Sediment Trap (Element 3) is an additional sediment control feature.
Log Item 29
Page 38 of 68
construction Pollution Prevention Page 2 of 3 5/31/2019
5.Stabilize Soils
An additional measure that can minimize sediment transport in runoff is to stabilize soils on the site with
mulch or some other covering. This will limit the amount of soil that is exposed to rainfall, thus limiting the
sediment that could potentially leave the site. BMPs that could be used for this include Mulching (BMP
C121), Nets and Blankets (BMP C122), and Plastic Covering (BMP C123). During periods of dry weather
dust can become a problem and sediment could be transported from the site in high winds. BMP C140
Dust Control should be followed to limit loss of soils in windy conditions.
6.Protect Slopes
If the cleared area includes slopes of 3:1 (Horizontal: Vertical) or steeper, the slopes should be protected
to limit runoff. If the slopes are not protected, rills and gullies may form, transporting sediment to the
lower elevations and potentially off the construction site. The slopes sh ould be graded to minimize
erosion and runoff at the downstream end of the slopes, and runoff should be collected and treated. The
following BMPs could be used Surface Roughening (BMP C130), Interceptor Dike and Swale (BMP
C200), and Pipe Slope Drains (BMP C204).
7.Protect Drain Inlets
Runoff from urban construction sites often discharges into existing stormwater collection systems. Water
enters the collection system through drain inlets. If there are drain inlets downstream of a construction
site, they should be protected using BMP C220 Storm Drain Inlet Protection.
8.Stabilize Channels and Outlets
Any temporary on-site channels or ditches that are used to control runoff should be stabilized to prevent
erosion in the channel. BMP C202 Channel Lining and BMP C209 Outlet Protection should be used.
9.Control Pollutants
The best way to control pollution is to limit the source of pollution. Construction debris should be
maintained in a safe location. Vehicle maintenance on the construction site should be minimized and any
spill should be promptly cleaned up. Concrete spillage should be kept to a minimum and cleaning of the
concrete trucks after they have unloaded should be done in an area that will not drain off site (see BMP
C151 Concrete Handling).
10.Control Dewatering
In some cases, excavation for the foundation or below ground structures will encounter ground water.
This water must be removed (dewatered) from the excavation. Discharge of this ground water must be
treated in a manner that will not cause damage downstream due to flow rates or added pollution. There
are no specific BMP identified for this activity, but the water should be handled with care to assure that
soils or other pollutants are not added to this flow.
11.Maintain BMPs
Installation of the appropriate BMPs is not adequate to completely control stormwater runoff. The BMPs
that have been installed on the project must be inspected and maintained during the duration of the
construction project. In addition, the temporary controls that were installed for construction should be
removed within 30 days of completion of the work. Typically, once construction has been completed, the
temporary facilities are not maintained, and by removing the facilities, it will ensure that these won’t f ail
and discharge water or sediment that had been previously trapped or contained.
12.Manage the Project
Management of a project has four aspects:
1.Phasing construction to prevent transportation of runoff and sediment,
2.Limiting the work during seasons where large amounts of rainfall could be anticipated,
3.Coordination with Utilities and other Contractors, and
4.Inspection and Monitoring.
All of these for aspects are important and must be followed to ensure a project that will have minimal
impact on the environment. Volume II of the Manual contains additional BMPs that could be used on-site.
The applicant is encouraged to review the Manual to see if other BMPs may be applicable to, or more
useful on, a particular site.
Log Item 29
Page 39 of 68
construction Pollution Prevention Page 3 of 3 5/31/2019
Best Management Practices from 2014 Ecology Stormwater
Management Manual
The following BMPs for Construction Stormwater Pollution Prevention are
sediment and erosion control measures for the construction phase of typical
rural residential development. Some projects may not require implementation of
all of these BMPs; others may require additional measures not listed here.
Click on the BMP to learn more about each BMP’s purpose and design:
II-4.1 Source Control BMPs
BMP C101: Preserving Natural Vegetation
BMP C102: Buffer Zones
BMP C103: High Visibility Fence
BMP C105: Stabilized Construction Entrance /
Exit
BMP C106: Wheel Wash
BMP C107: Construction Road/Parking Area
Stabilization
BMP C120: Temporary and Permanent Seeding
BMP C121: Mulching
BMP C122: Nets and Blankets
BMP C123: Plastic Covering
BMP C124: Sodding
BMP C125: Topsoiling / Composting
BMP C126: Polyacrylamide (PAM) for Soil
Erosion Protection
BMP C130: Surface Roughening
BMP C131: Gradient Terraces
BMP C140: Dust Control
BMP C150: Materials on Hand
BMP C151: Concrete Handling
BMP C152: Sawcutting and Surfacing Pollution
Prevention
BMP C153: Material Delivery, Storage and
Containment
BMP C154: Concrete Washout Area
BMP C160: Certified Erosion and Sediment
Control Lead
BMP C162: Scheduling
II-4.2 Runoff Conveyance and Treatment BMPs
BMP C200: Interceptor Dike and Swale
BMP C201: Grass-Lined Channels
BMP C202: Channel Lining
BMP C203: Water Bars
BMP C204: Pipe Slope Drains
BMP C205: Subsurface Drains
BMP C206: Level Spreader
BMP C207: Check Dams
BMP C208: Triangular Silt Dike (TSD)
(Geotextile-Encased Check Dam)
BMP C209: Outlet Protection
BMP C220: Storm Drain Inlet Protection
BMP C231: Brush Barrier
BMP C232: Gravel Filter Berm
BMP C233: Silt Fence
BMP C234: Vegetated Strip
BMP C235: Wattles
BMP C236: Vegetative Filtration
BMP C240: Sediment Trap
BMP C241: Temporary Sediment Pond
BMP C251: Construction Stormwater Filtration
Log Item 29
Page 40 of 68
Log Item 29
Page 41 of 68
Start HERE! A guide to using stormwater forms
Use the quantities reported in this worksheet to determine which minimum requirements apply to your project
and what forms will be required using the “Flow Chart for Determining Minimum Requirements.”
Step 1
Yes no
All projects must read and complete the Stormwater Calculation Worksheet.
Small Projects may submit the Worksheet S Small Project Certification sheet. Applicants who are able to sign the
certification may STOP HERE. Submit the Stormwater Calculation Worksheet and Worksheet “S” with your appli-
cation. No additional submittal is necessary.
Step 2
Step 2.1
Step 2.1 Medium Projects must complete worksheets A1, B1, and C or equivalent. Large Projects refer to Worksheet L to
determine applicable worksheets are required or if a state -licensed engineer must prepare the submittal.
A Note on Engineered Stormwater Submittal:
-Many applicants complete stormwater submittal forms independently without professional expertise. For example, full
dispersion, if feasible on the site (See Worksheet C), is typically easiest to implement for many different surface types suc h as
roof, driveway, patio etc.
-Applicants may opt to submit an engineered stormwater plan even if it isn’t required. This option may be attractive to those who
are unsure how some of the requirements will be achieved on the site.In some instances, engineering will be required. Certain
Large projects must be engineered (See Worksheet L). Gathering information on infiltration feasibility may need an engineer ’s
expertise. Or, sites with greater than 15% slopes may require applicants hire a geologist to recommend if a drainage method i s
appropriate. Discharging directly to a marine water via tightline must be engineered. If you cannot do full dispersion on par cels
larger than 5 acres, engineering is required. In other instances, site constraints will require an engineered design.
-Jefferson County staff may assist by providing and/or explaining Department of Ecology Stormwater Management Manual
The project requires or the applicant elects to submit an engineered stormwater plan. The plan is attached hereto
with minimum requirement narrative, drawings, calculation, modeling output, construction pollution prevention
plan, and site plan.
Circle one:
Step 3
If you answered YES above, STOP, no further submittal is required. Otherwise, proceed with the following steps.
Complete Worksheet A1 Medium/Large Project Report and Stormwater Site Plan or equivalent.
Step 3.1 Complete Worksheet C to determine which BMPs are possible and appropriate for your site. Circle the first BMP
that is feasible (i.e. none of the infeasibility criteria is checked) for each surface type. Circle the corresponding
BMP on Worksheet A1.
Step 4 Complete Worksheet B1 Medium/Large Project Construction Pollution Prevention Plan and Worksheet B2
Construction Site Plan or equivalent.
A Note on Commercial Projects:
•Jefferson County Public Works (JCPW) reviews commercial projects and charges a review fee. JCPW may charge additional
fees for any required inspections.
•Any commercial projects proposing infiltration facilities may complete Worksheet E —Infiltration Test. Grain size analysis may
be used instead of PIT. Commercial projects may elect to use BMP T5.10A and would not need a PIT, just a soil evaluation.
•Any development for cottage industries may require a commercial public works review if full dispersion is infeasible.
BDN, LLC SEPA CHECKLIST - Addendum M-6
Log Item 29
Page 42 of 68
stormwater calc worksheet QR code – REV. 5/31/2019 page 1 of 2
DEPARTMENT OF COMMUNITY DEVELOPMENT
621 Sheridan Street, Port Townsend, WA 98368
Tel: 360.379.4450 | Fax: 360.379.4451
Web: www.co.jefferson.wa.us/communitydevelopment
E-mail: dcd@co.jefferson.wa.us
STORMWATER CALCULATION WORKSHEET
PARCEL # PROJECT/APPLICANT NAME:
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 re quired 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.
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 of plant species, other than noxious weeds, 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:
Does the project convert ¾ acres or more of
Construction site for structures _________________ sq/ft native vegetation to lawn or landscaped areas?
Drainfield, septic tank, etc. ____________________ sq/ft Circle: Yes No
Well, utilities, etc. ___________________________ sq/ft Does the project convert 2 ½ acres or more of
native vegetation to pasture?
Driveway, parking, roads, etc. ___________________sq/ft
Circle: Yes No
Lawn, landscaping, etc. ______________________ sq/ft
Other compacted surface, etc. _________________ sq/ft Indicate Total Volumes of Proposed:
(Includes BMP T5.13 Fill Volume)
Temporary construction area ______________ sq/ft
Total Land Disturbance ____________________ sq/ft Cut __________ Fill __________ (cu/yd)
PARCEL SIZE (I.E., SITE)
Size of parcel _________ acres An acre contains 43,560 square feet. Multiply the acreage by this figure.
Size of parcel in square feet _________________ sq/ft
Scan the QR
code to access
the digital form
BDN, LLC
o
o
821344064
1.26
54,885
0
0
0
0
0
0
0
0 0 0
Log Item 29
Page 43 of 68
Log Item 29
Page 44 of 68
This is a "large" project.
Large projects refer to
Worksheet L for submittal
requirements. At a
minimum, all large Project
must submit Worksheet
A1, B1, and C or
equivalent.
This is a "medium"
project. Submit
Worksheet A1,B1
and C or
equivalent.
Complete "Small" Project Certification Worksheet
Project must follow Construction Pollution Prevention Fact Sheet
Figure 2.4.1 Flow Chart for New Development
o
o
o
o
o
Log Item 29
Page 45 of 68
This is a "large" project. Large projects refer to Worksheet L for
submittal requirements. At a minimum, all large Project must submit
Worksheet A1, B1, and C or equivalent.
Figure 2.4.2 Flow Chart for Redevelopment
Log Item 29
Page 46 of 68
construction Pollution Prevention Page 1 of 3 5/31/2019
DEPARTMENT OF COMMUNITY DEVELOPMENT
621 Sheridan Street, Port Townsend, WA 98368
Tel: 360.379.4450 | Fax: 360.379.4451
Web: www.co.jefferson.wa.us/communitydevelopment
E-mail: dcd@co.jefferson.wa.us
CONSTRUCTION STORMWATER POLLUTION PREVENTION
Best Management Practices (BMPs) Fact Sheet
For “small” projects (as determined through the Stormwater Calculation Worksheet), submit Worksheet
“S” Small Project Certification. Additionally, the applicant shall consider the twelve Construction
Stormwater Pollution Prevention elements and implement applicable BMPs. A set of useful BMPs for
typical rural residential construction is attached. There is no additional submittal required as part of the
permit application.
For “medium” and “large” projects, applicants must submit a Construction Stormwater Pollution
Prevention Plan (SWPPP) and a Stormwater Site Plan (applicants may use Worksheet B1 or equivalent).
The following twelve elements must be considered for Construction Stormwater Pollution Prevention
before and during the construction phase of the project:
1.Mark Clearing Limits 7.Protect Drain Inlets
2.Establish Construction Access 8.Stabilize Channels and Outlets
3.Control Flow Rates 9.Control Pollutants
4.Install Sediment Controls 10.Control De-Watering
5.Stabilize Soils 11.Maintain Best Management Practices
6.Protect Slopes 12.Manage The Project
Each of the twelve elements is described in more detail below:
1.Mark Clearing Limits
By minimizing the limits of clearing on the site, a builder can minimize stormwater runoff and provide
effective control of pollution.
2.Establish Construction Access
Much of the sediment that leaves a construction site does so on the wheels of delivery and construction
vehicles that drive off a project site. Construction access must be limited to a single location and a
properly constructed Stabilized Construction Entrance (BMP C105) should be included on the site.
3.Control Flow Rates
Stormwater that leaves a project site unimpeded may exceed the capacity of the existing stormwater
control facilities downstream and may contain sediment that may be deposited as the velocity of the
runoff decreases. Stormwater protection on a construction site should include measures to control the
flow rate of runoff from the site. This can be done by installing a Sediment Trap (BMP C240) or other
measure that will impede the flow of water off a construction site.
4.Install Sediment Controls
In addition to limiting the rate of stormwater flow off a construction site, measures should be put in place
to treat the runoff and remove sediment. Limiting of the cleared area (Element 1) will assist in this effort,
but there will be exposed soils that may move with the runoff. Suggested BMPs for controlling sediment
include Straw Wattles (BMPC235), Brush Barrier (BMP C231), Gravel Filter Berm (BMP C232), and Silt
Fence (BMP C233). Installation of a Sediment Trap (Element 3) is an additional sediment control feature.
Log Item 29
Page 47 of 68
construction Pollution Prevention Page 2 of 3 5/31/2019
5.Stabilize Soils
An additional measure that can minimize sediment transport in runoff is to stabilize soils on the site with
mulch or some other covering. This will limit the amount of soil that is exposed to rainfall, thus limiting the
sediment that could potentially leave the site. BMPs that could be used for this include Mulching (BMP
C121), Nets and Blankets (BMP C122), and Plastic Covering (BMP C123). During periods of dry weather
dust can become a problem and sediment could be transported from the site in high winds. BMP C140
Dust Control should be followed to limit loss of soils in windy conditions.
6.Protect Slopes
If the cleared area includes slopes of 3:1 (Horizontal: Vertical) or steeper, the slopes should be protected
to limit runoff. If the slopes are not protected, rills and gullies may form, transporting sediment to the
lower elevations and potentially off the construction site. The slopes sh ould be graded to minimize
erosion and runoff at the downstream end of the slopes, and runoff should be collected and treated. The
following BMPs could be used Surface Roughening (BMP C130), Interceptor Dike and Swale (BMP
C200), and Pipe Slope Drains (BMP C204).
7.Protect Drain Inlets
Runoff from urban construction sites often discharges into existing stormwater collection systems. Water
enters the collection system through drain inlets. If there are drain inlets downstream of a construction
site, they should be protected using BMP C220 Storm Drain Inlet Protection.
8.Stabilize Channels and Outlets
Any temporary on-site channels or ditches that are used to control runoff should be stabilized to prevent
erosion in the channel. BMP C202 Channel Lining and BMP C209 Outlet Protection should be used.
9.Control Pollutants
The best way to control pollution is to limit the source of pollution. Construction debris should be
maintained in a safe location. Vehicle maintenance on the construction site should be minimized and any
spill should be promptly cleaned up. Concrete spillage should be kept to a minimum and cleaning of the
concrete trucks after they have unloaded should be done in an area that will not drain off site (see BMP
C151 Concrete Handling).
10.Control Dewatering
In some cases, excavation for the foundation or below ground structures will encounter ground water.
This water must be removed (dewatered) from the excavation. Discharge of this ground water must be
treated in a manner that will not cause damage downstream due to flow rates or added pollution. There
are no specific BMP identified for this activity, but the water should be handled with care to assure that
soils or other pollutants are not added to this flow.
11.Maintain BMPs
Installation of the appropriate BMPs is not adequate to completely control stormwater runoff. The BMPs
that have been installed on the project must be inspected and maintained during the duration of the
construction project. In addition, the temporary controls that were installed for construction should be
removed within 30 days of completion of the work. Typically, once construction has been completed, the
temporary facilities are not maintained, and by removing the facilities, it will ensure that these won’t f ail
and discharge water or sediment that had been previously trapped or contained.
12.Manage the Project
Management of a project has four aspects:
1.Phasing construction to prevent transportation of runoff and sediment,
2.Limiting the work during seasons where large amounts of rainfall could be anticipated,
3.Coordination with Utilities and other Contractors, and
4.Inspection and Monitoring.
All of these for aspects are important and must be followed to ensure a project that will have minimal
impact on the environment. Volume II of the Manual contains additional BMPs that could be used on-site.
The applicant is encouraged to review the Manual to see if other BMPs may be applicable to, or more
useful on, a particular site.
Log Item 29
Page 48 of 68
construction Pollution Prevention Page 3 of 3 5/31/2019
Best Management Practices from 2014 Ecology Stormwater
Management Manual
The following BMPs for Construction Stormwater Pollution Prevention are
sediment and erosion control measures for the construction phase of typical
rural residential development. Some projects may not require implementation of
all of these BMPs; others may require additional measures not listed here.
Click on the BMP to learn more about each BMP’s purpose and design:
II-4.1 Source Control BMPs
BMP C101: Preserving Natural Vegetation
BMP C102: Buffer Zones
BMP C103: High Visibility Fence
BMP C105: Stabilized Construction Entrance /
Exit
BMP C106: Wheel Wash
BMP C107: Construction Road/Parking Area
Stabilization
BMP C120: Temporary and Permanent Seeding
BMP C121: Mulching
BMP C122: Nets and Blankets
BMP C123: Plastic Covering
BMP C124: Sodding
BMP C125: Topsoiling / Composting
BMP C126: Polyacrylamide (PAM) for Soil
Erosion Protection
BMP C130: Surface Roughening
BMP C131: Gradient Terraces
BMP C140: Dust Control
BMP C150: Materials on Hand
BMP C151: Concrete Handling
BMP C152: Sawcutting and Surfacing Pollution
Prevention
BMP C153: Material Delivery, Storage and
Containment
BMP C154: Concrete Washout Area
BMP C160: Certified Erosion and Sediment
Control Lead
BMP C162: Scheduling
II-4.2 Runoff Conveyance and Treatment BMPs
BMP C200: Interceptor Dike and Swale
BMP C201: Grass-Lined Channels
BMP C202: Channel Lining
BMP C203: Water Bars
BMP C204: Pipe Slope Drains
BMP C205: Subsurface Drains
BMP C206: Level Spreader
BMP C207: Check Dams
BMP C208: Triangular Silt Dike (TSD)
(Geotextile-Encased Check Dam)
BMP C209: Outlet Protection
BMP C220: Storm Drain Inlet Protection
BMP C231: Brush Barrier
BMP C232: Gravel Filter Berm
BMP C233: Silt Fence
BMP C234: Vegetated Strip
BMP C235: Wattles
BMP C236: Vegetative Filtration
BMP C240: Sediment Trap
BMP C241: Temporary Sediment Pond
BMP C251: Construction Stormwater Filtration
Log Item 29
Page 49 of 68
Log Item 29
Page 50 of 68
Start HERE! A guide to using stormwater forms
Use the quantities reported in this worksheet to determine which minimum requirements apply to your project
and what forms will be required using the “Flow Chart for Determining Minimum Requirements.”
Step 1
Yes no
All projects must read and complete the Stormwater Calculation Worksheet.
Small Projects may submit the Worksheet S Small Project Certification sheet. Applicants who are able to sign the
certification may STOP HERE. Submit the Stormwater Calculation Worksheet and Worksheet “S” with your appli-
cation. No additional submittal is necessary.
Step 2
Step 2.1
Step 2.1 Medium Projects must complete worksheets A1, B1, and C or equivalent. Large Projects refer to Worksheet L to
determine applicable worksheets are required or if a state -licensed engineer must prepare the submittal.
A Note on Engineered Stormwater Submittal:
-Many applicants complete stormwater submittal forms independently without professional expertise. For example, full
dispersion, if feasible on the site (See Worksheet C), is typically easiest to implement for many different surface types suc h as
roof, driveway, patio etc.
-Applicants may opt to submit an engineered stormwater plan even if it isn’t required. This option may be attractive to those who
are unsure how some of the requirements will be achieved on the site.In some instances, engineering will be required. Certain
Large projects must be engineered (See Worksheet L). Gathering information on infiltration feasibility may need an engineer ’s
expertise. Or, sites with greater than 15% slopes may require applicants hire a geologist to recommend if a drainage method i s
appropriate. Discharging directly to a marine water via tightline must be engineered. If you cannot do full dispersion on par cels
larger than 5 acres, engineering is required. In other instances, site constraints will require an engineered design.
-Jefferson County staff may assist by providing and/or explaining Department of Ecology Stormwater Management Manual
The project requires or the applicant elects to submit an engineered stormwater plan. The plan is attached hereto
with minimum requirement narrative, drawings, calculation, modeling output, construction pollution prevention
plan, and site plan.
Circle one:
Step 3
If you answered YES above, STOP, no further submittal is required. Otherwise, proceed with the following steps.
Complete Worksheet A1 Medium/Large Project Report and Stormwater Site Plan or equivalent.
Step 3.1 Complete Worksheet C to determine which BMPs are possible and appropriate for your site. Circle the first BMP
that is feasible (i.e. none of the infeasibility criteria is checked) for each surface type. Circle the corresponding
BMP on Worksheet A1.
Step 4 Complete Worksheet B1 Medium/Large Project Construction Pollution Prevention Plan and Worksheet B2
Construction Site Plan or equivalent.
A Note on Commercial Projects:
• Jefferson County Public Works (JCPW) reviews commercial projects and charges a review fee. JCPW may charge additional
fees for any required inspections.
• Any commercial projects proposing infiltration facilities may complete Worksheet E —Infiltration Test. Grain size analysis may
be used instead of PIT. Commercial projects may elect to use BMP T5.10A and would not need a PIT, just a soil evaluation.
• Any development for cottage industries may require a commercial public works review if full dispersion is infeasible.
Log Item 29
Page 51 of 68
stormwater calc worksheet QR code – REV. 5/31/2019 page 1 of 2
DEPARTMENT OF COMMUNITY DEVELOPMENT
621 Sheridan Street, Port Townsend, WA 98368
Tel: 360.379.4450 | Fax: 360.379.4451
Web: www.co.jefferson.wa.us/communitydevelopment
E-mail: dcd@co.jefferson.wa.us
STORMWATER CALCULATION WORKSHEET
PARCEL # PROJECT/APPLICANT NAME:
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 re quired 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.
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 of plant species, other than noxious weeds, 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:
Does the project convert ¾ acres or more of
Construction site for structures _________________ sq/ft native vegetation to lawn or landscaped areas?
Drainfield, septic tank, etc. ____________________ sq/ft Circle: Yes No
Well, utilities, etc. ___________________________ sq/ft Does the project convert 2 ½ acres or more of
native vegetation to pasture?
Driveway, parking, roads, etc. ___________________sq/ft
Circle: Yes No
Lawn, landscaping, etc. ______________________ sq/ft
Other compacted surface, etc. _________________ sq/ft Indicate Total Volumes of Proposed:
(Includes BMP T5.13 Fill Volume)
Temporary construction area ______________ sq/ft
Total Land Disturbance ____________________ sq/ft Cut __________ Fill __________ (cu/yd)
PARCEL SIZE (I.E., SITE)
Size of parcel _________ acres An acre contains 43,560 square feet. Multiply the acreage by this figure.
Size of parcel in square feet _________________ sq/ft
Scan the QR
code to access
the digital form
BDN, LLC
o
o
821344064
1.26
54,885
0
0
0
0
0
0
0
0 0 0
Log Item 29
Page 52 of 68
Log Item 29
Page 53 of 68
This is a "large" project.
Large projects refer to
Worksheet L for submittal
requirements. At a
minimum, all large Project
must submit Worksheet
A1, B1, and C or
equivalent.
This is a "medium"
project. Submit
Worksheet A1,B1
and C or
equivalent.
Complete "Small" Project Certification Worksheet
Project must follow Construction Pollution Prevention Fact Sheet
Figure 2.4.1 Flow Chart for New Development
o
o
o
o
o
Log Item 29
Page 54 of 68
This is a "large" project. Large projects refer to Worksheet L for
submittal requirements. At a minimum, all large Project must submit
Worksheet A1, B1, and C or equivalent.
Figure 2.4.2 Flow Chart for Redevelopment
Log Item 29
Page 55 of 68
construction Pollution Prevention Page 1 of 3 5/31/2019
DEPARTMENT OF COMMUNITY DEVELOPMENT
621 Sheridan Street, Port Townsend, WA 98368
Tel: 360.379.4450 | Fax: 360.379.4451
Web: www.co.jefferson.wa.us/communitydevelopment
E-mail: dcd@co.jefferson.wa.us
CONSTRUCTION STORMWATER POLLUTION PREVENTION
Best Management Practices (BMPs) Fact Sheet
For “small” projects (as determined through the Stormwater Calculation Worksheet), submit Worksheet
“S” Small Project Certification. Additionally, the applicant shall consider the twelve Construction
Stormwater Pollution Prevention elements and implement applicable BMPs. A set of useful BMPs for
typical rural residential construction is attached. There is no additional submittal required as part of the
permit application.
For “medium” and “large” projects, applicants must submit a Construction Stormwater Pollution
Prevention Plan (SWPPP) and a Stormwater Site Plan (applicants may use Worksheet B1 or equivalent).
The following twelve elements must be considered for Construction Stormwater Pollution Prevention
before and during the construction phase of the project:
1.Mark Clearing Limits 7.Protect Drain Inlets
2.Establish Construction Access 8.Stabilize Channels and Outlets
3.Control Flow Rates 9.Control Pollutants
4.Install Sediment Controls 10.Control De-Watering
5.Stabilize Soils 11.Maintain Best Management Practices
6.Protect Slopes 12.Manage The Project
Each of the twelve elements is described in more detail below:
1.Mark Clearing Limits
By minimizing the limits of clearing on the site, a builder can minimize stormwater runoff and provide
effective control of pollution.
2.Establish Construction Access
Much of the sediment that leaves a construction site does so on the wheels of delivery and construction
vehicles that drive off a project site. Construction access must be limited to a single location and a
properly constructed Stabilized Construction Entrance (BMP C105) should be included on the site.
3.Control Flow Rates
Stormwater that leaves a project site unimpeded may exceed the capacity of the existing stormwater
control facilities downstream and may contain sediment that may be deposited as the velocity of the
runoff decreases. Stormwater protection on a construction site should include measures to control the
flow rate of runoff from the site. This can be done by installing a Sediment Trap (BMP C240) or other
measure that will impede the flow of water off a construction site.
4.Install Sediment Controls
In addition to limiting the rate of stormwater flow off a construction site, measures should be put in place
to treat the runoff and remove sediment. Limiting of the cleared area (Element 1) will assist in this effort,
but there will be exposed soils that may move with the runoff. Suggested BMPs for controlling sediment
include Straw Wattles (BMPC235), Brush Barrier (BMP C231), Gravel Filter Berm (BMP C232), and Silt
Fence (BMP C233). Installation of a Sediment Trap (Element 3) is an additional sediment control feature.
Log Item 29
Page 56 of 68
construction Pollution Prevention Page 2 of 3 5/31/2019
5.Stabilize Soils
An additional measure that can minimize sediment transport in runoff is to stabilize soils on the site with
mulch or some other covering. This will limit the amount of soil that is exposed to rainfall, thus limiting the
sediment that could potentially leave the site. BMPs that could be used for this include Mulching (BMP
C121), Nets and Blankets (BMP C122), and Plastic Covering (BMP C123). During periods of dry weather
dust can become a problem and sediment could be transported from the site in high winds. BMP C140
Dust Control should be followed to limit loss of soils in windy conditions.
6.Protect Slopes
If the cleared area includes slopes of 3:1 (Horizontal: Vertical) or steeper, the slopes should be protected
to limit runoff. If the slopes are not protected, rills and gullies may form, transporting sediment to the
lower elevations and potentially off the construction site. The slopes sh ould be graded to minimize
erosion and runoff at the downstream end of the slopes, and runoff should be collected and treated. The
following BMPs could be used Surface Roughening (BMP C130), Interceptor Dike and Swale (BMP
C200), and Pipe Slope Drains (BMP C204).
7.Protect Drain Inlets
Runoff from urban construction sites often discharges into existing stormwater collection systems. Water
enters the collection system through drain inlets. If there are drain inlets downstream of a construction
site, they should be protected using BMP C220 Storm Drain Inlet Protection.
8.Stabilize Channels and Outlets
Any temporary on-site channels or ditches that are used to control runoff should be stabilized to prevent
erosion in the channel. BMP C202 Channel Lining and BMP C209 Outlet Protection should be used.
9.Control Pollutants
The best way to control pollution is to limit the source of pollution. Construction debris should be
maintained in a safe location. Vehicle maintenance on the construction site should be minimized and any
spill should be promptly cleaned up. Concrete spillage should be kept to a minimum and cleaning of the
concrete trucks after they have unloaded should be done in an area that will not drain off site (see BMP
C151 Concrete Handling).
10.Control Dewatering
In some cases, excavation for the foundation or below ground structures will encounter ground water.
This water must be removed (dewatered) from the excavation. Discharge of this ground water must be
treated in a manner that will not cause damage downstream due to flow rates or added pollution. There
are no specific BMP identified for this activity, but the water should be handled with care to assure that
soils or other pollutants are not added to this flow.
11.Maintain BMPs
Installation of the appropriate BMPs is not adequate to completely control stormwater runoff. The BMPs
that have been installed on the project must be inspected and maintained during the duration of the
construction project. In addition, the temporary controls that were installed for construction should be
removed within 30 days of completion of the work. Typically, once construction has been completed, the
temporary facilities are not maintained, and by removing the facilities, it will ensure that these won’t f ail
and discharge water or sediment that had been previously trapped or contained.
12.Manage the Project
Management of a project has four aspects:
1.Phasing construction to prevent transportation of runoff and sediment,
2.Limiting the work during seasons where large amounts of rainfall could be anticipated,
3.Coordination with Utilities and other Contractors, and
4.Inspection and Monitoring.
All of these for aspects are important and must be followed to ensure a project that will have minimal
impact on the environment. Volume II of the Manual contains additional BMPs that could be used on-site.
The applicant is encouraged to review the Manual to see if other BMPs may be applicable to, or more
useful on, a particular site.
Log Item 29
Page 57 of 68
construction Pollution Prevention Page 3 of 3 5/31/2019
Best Management Practices from 2014 Ecology Stormwater
Management Manual
The following BMPs for Construction Stormwater Pollution Prevention are
sediment and erosion control measures for the construction phase of typical
rural residential development. Some projects may not require implementation of
all of these BMPs; others may require additional measures not listed here.
Click on the BMP to learn more about each BMP’s purpose and design:
II-4.1 Source Control BMPs
BMP C101: Preserving Natural Vegetation
BMP C102: Buffer Zones
BMP C103: High Visibility Fence
BMP C105: Stabilized Construction Entrance /
Exit
BMP C106: Wheel Wash
BMP C107: Construction Road/Parking Area
Stabilization
BMP C120: Temporary and Permanent Seeding
BMP C121: Mulching
BMP C122: Nets and Blankets
BMP C123: Plastic Covering
BMP C124: Sodding
BMP C125: Topsoiling / Composting
BMP C126: Polyacrylamide (PAM) for Soil
Erosion Protection
BMP C130: Surface Roughening
BMP C131: Gradient Terraces
BMP C140: Dust Control
BMP C150: Materials on Hand
BMP C151: Concrete Handling
BMP C152: Sawcutting and Surfacing Pollution
Prevention
BMP C153: Material Delivery, Storage and
Containment
BMP C154: Concrete Washout Area
BMP C160: Certified Erosion and Sediment
Control Lead
BMP C162: Scheduling
II-4.2 Runoff Conveyance and Treatment BMPs
BMP C200: Interceptor Dike and Swale
BMP C201: Grass-Lined Channels
BMP C202: Channel Lining
BMP C203: Water Bars
BMP C204: Pipe Slope Drains
BMP C205: Subsurface Drains
BMP C206: Level Spreader
BMP C207: Check Dams
BMP C208: Triangular Silt Dike (TSD)
(Geotextile-Encased Check Dam)
BMP C209: Outlet Protection
BMP C220: Storm Drain Inlet Protection
BMP C231: Brush Barrier
BMP C232: Gravel Filter Berm
BMP C233: Silt Fence
BMP C234: Vegetated Strip
BMP C235: Wattles
BMP C236: Vegetative Filtration
BMP C240: Sediment Trap
BMP C241: Temporary Sediment Pond
BMP C251: Construction Stormwater Filtration
Log Item 29
Page 58 of 68
Log Item 29
Page 59 of 68
Start HERE! A guide to using stormwater forms
Use the quantities reported in this worksheet to determine which minimum requirements apply to your project
and what forms will be required using the “Flow Chart for Determining Minimum Requirements.”
Step 1
Yes no
All projects must read and complete the Stormwater Calculation Worksheet.
Small Projects may submit the Worksheet S Small Project Certification sheet. Applicants who are able to sign the
certification may STOP HERE. Submit the Stormwater Calculation Worksheet and Worksheet “S” with your appli-
cation. No additional submittal is necessary.
Step 2
Step 2.1
Step 2.1 Medium Projects must complete worksheets A1, B1, and C or equivalent. Large Projects refer to Worksheet L to
determine applicable worksheets are required or if a state -licensed engineer must prepare the submittal.
A Note on Engineered Stormwater Submittal:
-Many applicants complete stormwater submittal forms independently without professional expertise. For example, full
dispersion, if feasible on the site (See Worksheet C), is typically easiest to implement for many different surface types suc h as
roof, driveway, patio etc.
-Applicants may opt to submit an engineered stormwater plan even if it isn’t required. This option may be attractive to those who
are unsure how some of the requirements will be achieved on the site.In some instances, engineering will be required. Certain
Large projects must be engineered (See Worksheet L). Gathering information on infiltration feasibility may need an engineer ’s
expertise. Or, sites with greater than 15% slopes may require applicants hire a geologist to recommend if a drainage method i s
appropriate. Discharging directly to a marine water via tightline must be engineered. If you cannot do full dispersion on par cels
larger than 5 acres, engineering is required. In other instances, site constraints will require an engineered design.
-Jefferson County staff may assist by providing and/or explaining Department of Ecology Stormwater Management Manual
The project requires or the applicant elects to submit an engineered stormwater plan. The plan is attached hereto
with minimum requirement narrative, drawings, calculation, modeling output, construction pollution prevention
plan, and site plan.
Circle one:
Step 3
If you answered YES above, STOP, no further submittal is required. Otherwise, proceed with the following steps.
Complete Worksheet A1 Medium/Large Project Report and Stormwater Site Plan or equivalent.
Step 3.1 Complete Worksheet C to determine which BMPs are possible and appropriate for your site. Circle the first BMP
that is feasible (i.e. none of the infeasibility criteria is checked) for each surface type. Circle the corresponding
BMP on Worksheet A1.
Step 4 Complete Worksheet B1 Medium/Large Project Construction Pollution Prevention Plan and Worksheet B2
Construction Site Plan or equivalent.
A Note on Commercial Projects:
• Jefferson County Public Works (JCPW) reviews commercial projects and charges a review fee. JCPW may charge additional
fees for any required inspections.
• Any commercial projects proposing infiltration facilities may complete Worksheet E —Infiltration Test. Grain size analysis may
be used instead of PIT. Commercial projects may elect to use BMP T5.10A and would not need a PIT, just a soil evaluation.
• Any development for cottage industries may require a commercial public works review if full dispersion is infeasible.
Log Item 29
Page 60 of 68
stormwater calc worksheet QR code – REV. 5/31/2019 page 1 of 2
DEPARTMENT OF COMMUNITY DEVELOPMENT
621 Sheridan Street, Port Townsend, WA 98368
Tel: 360.379.4450 | Fax: 360.379.4451
Web: www.co.jefferson.wa.us/communitydevelopment
E-mail: dcd@co.jefferson.wa.us
STORMWATER CALCULATION WORKSHEET
PARCEL # PROJECT/APPLICANT NAME:
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 re quired 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.
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 of plant species, other than noxious weeds, 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:
Does the project convert ¾ acres or more of
Construction site for structures _________________ sq/ft native vegetation to lawn or landscaped areas?
Drainfield, septic tank, etc. ____________________ sq/ft Circle: Yes No
Well, utilities, etc. ___________________________ sq/ft Does the project convert 2 ½ acres or more of
native vegetation to pasture?
Driveway, parking, roads, etc. ___________________sq/ft
Circle: Yes No
Lawn, landscaping, etc. ______________________ sq/ft
Other compacted surface, etc. _________________ sq/ft Indicate Total Volumes of Proposed:
(Includes BMP T5.13 Fill Volume)
Temporary construction area ______________ sq/ft
Total Land Disturbance ____________________ sq/ft Cut __________ Fill __________ (cu/yd)
PARCEL SIZE (I.E., SITE)
Size of parcel _________ acres An acre contains 43,560 square feet. Multiply the acreage by this figure.
Size of parcel in square feet _________________ sq/ft
Scan the QR
code to access
the digital form
BDN, LLC
o
o
970200001
.29
12,632
0
0
0
0
0
0
0
0 0 0
Log Item 29
Page 61 of 68
Log Item 29
Page 62 of 68
This is a "large" project.
Large projects refer to
Worksheet L for submittal
requirements. At a
minimum, all large Project
must submit Worksheet
A1, B1, and C or
equivalent.
This is a "medium"
project. Submit
Worksheet A1,B1
and C or
equivalent.
Complete "Small" Project Certification Worksheet
Project must follow Construction Pollution Prevention Fact Sheet
Figure 2.4.1 Flow Chart for New Development
o
o
o
o
o
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This is a "large" project. Large projects refer to Worksheet L for
submittal requirements. At a minimum, all large Project must submit
Worksheet A1, B1, and C or equivalent.
Figure 2.4.2 Flow Chart for Redevelopment
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DEPARTMENT OF COMMUNITY DEVELOPMENT
621 Sheridan Street, Port Townsend, WA 98368
Tel: 360.379.4450 | Fax: 360.379.4451
Web: www.co.jefferson.wa.us/communitydevelopment
E-mail: dcd@co.jefferson.wa.us
CONSTRUCTION STORMWATER POLLUTION PREVENTION
Best Management Practices (BMPs) Fact Sheet
For “small” projects (as determined through the Stormwater Calculation Worksheet), submit Worksheet
“S” Small Project Certification. Additionally, the applicant shall consider the twelve Construction
Stormwater Pollution Prevention elements and implement applicable BMPs. A set of useful BMPs for
typical rural residential construction is attached. There is no additional submittal required as part of the
permit application.
For “medium” and “large” projects, applicants must submit a Construction Stormwater Pollution
Prevention Plan (SWPPP) and a Stormwater Site Plan (applicants may use Worksheet B1 or equivalent).
The following twelve elements must be considered for Construction Stormwater Pollution Prevention
before and during the construction phase of the project:
1.Mark Clearing Limits 7.Protect Drain Inlets
2.Establish Construction Access 8.Stabilize Channels and Outlets
3.Control Flow Rates 9.Control Pollutants
4.Install Sediment Controls 10.Control De-Watering
5.Stabilize Soils 11.Maintain Best Management Practices
6.Protect Slopes 12.Manage The Project
Each of the twelve elements is described in more detail below:
1.Mark Clearing Limits
By minimizing the limits of clearing on the site, a builder can minimize stormwater runoff and provide
effective control of pollution.
2.Establish Construction Access
Much of the sediment that leaves a construction site does so on the wheels of delivery and construction
vehicles that drive off a project site. Construction access must be limited to a single location and a
properly constructed Stabilized Construction Entrance (BMP C105) should be included on the site.
3.Control Flow Rates
Stormwater that leaves a project site unimpeded may exceed the capacity of the existing stormwater
control facilities downstream and may contain sediment that may be deposited as the velocity of the
runoff decreases. Stormwater protection on a construction site should include measures to control the
flow rate of runoff from the site. This can be done by installing a Sediment Trap (BMP C240) or other
measure that will impede the flow of water off a construction site.
4.Install Sediment Controls
In addition to limiting the rate of stormwater flow off a construction site, measures should be put in place
to treat the runoff and remove sediment. Limiting of the cleared area (Element 1) will assist in this effort,
but there will be exposed soils that may move with the runoff. Suggested BMPs for controlling sediment
include Straw Wattles (BMPC235), Brush Barrier (BMP C231), Gravel Filter Berm (BMP C232), and Silt
Fence (BMP C233). Installation of a Sediment Trap (Element 3) is an additional sediment control feature.
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5.Stabilize Soils
An additional measure that can minimize sediment transport in runoff is to stabilize soils on the site with
mulch or some other covering. This will limit the amount of soil that is exposed to rainfall, thus limiting the
sediment that could potentially leave the site. BMPs that could be used for this include Mulching (BMP
C121), Nets and Blankets (BMP C122), and Plastic Covering (BMP C123). During periods of dry weather
dust can become a problem and sediment could be transported from the site in high winds. BMP C140
Dust Control should be followed to limit loss of soils in windy conditions.
6.Protect Slopes
If the cleared area includes slopes of 3:1 (Horizontal: Vertical) or steeper, the slopes should be protected
to limit runoff. If the slopes are not protected, rills and gullies may form, transporting sediment to the
lower elevations and potentially off the construction site. The slopes sh ould be graded to minimize
erosion and runoff at the downstream end of the slopes, and runoff should be collected and treated. The
following BMPs could be used Surface Roughening (BMP C130), Interceptor Dike and Swale (BMP
C200), and Pipe Slope Drains (BMP C204).
7.Protect Drain Inlets
Runoff from urban construction sites often discharges into existing stormwater collection systems. Water
enters the collection system through drain inlets. If there are drain inlets downstream of a construction
site, they should be protected using BMP C220 Storm Drain Inlet Protection.
8.Stabilize Channels and Outlets
Any temporary on-site channels or ditches that are used to control runoff should be stabilized to prevent
erosion in the channel. BMP C202 Channel Lining and BMP C209 Outlet Protection should be used.
9.Control Pollutants
The best way to control pollution is to limit the source of pollution. Construction debris should be
maintained in a safe location. Vehicle maintenance on the construction site should be minimized and any
spill should be promptly cleaned up. Concrete spillage should be kept to a minimum and cleaning of the
concrete trucks after they have unloaded should be done in an area that will not drain off site (see BMP
C151 Concrete Handling).
10.Control Dewatering
In some cases, excavation for the foundation or below ground structures will encounter ground water.
This water must be removed (dewatered) from the excavation. Discharge of this ground water must be
treated in a manner that will not cause damage downstream due to flow rates or added pollution. There
are no specific BMP identified for this activity, but the water should be handled with care to assure that
soils or other pollutants are not added to this flow.
11.Maintain BMPs
Installation of the appropriate BMPs is not adequate to completely control stormwater runoff. The BMPs
that have been installed on the project must be inspected and maintained during the duration of the
construction project. In addition, the temporary controls that were installed for construction should be
removed within 30 days of completion of the work. Typically, once construction has been completed, the
temporary facilities are not maintained, and by removing the facilities, it will ensure that these won’t f ail
and discharge water or sediment that had been previously trapped or contained.
12.Manage the Project
Management of a project has four aspects:
1.Phasing construction to prevent transportation of runoff and sediment,
2.Limiting the work during seasons where large amounts of rainfall could be anticipated,
3.Coordination with Utilities and other Contractors, and
4.Inspection and Monitoring.
All of these for aspects are important and must be followed to ensure a project that will have minimal
impact on the environment. Volume II of the Manual contains additional BMPs that could be used on-site.
The applicant is encouraged to review the Manual to see if other BMPs may be applicable to, or more
useful on, a particular site.
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Best Management Practices from 2014 Ecology Stormwater
Management Manual
The following BMPs for Construction Stormwater Pollution Prevention are
sediment and erosion control measures for the construction phase of typical
rural residential development. Some projects may not require implementation of
all of these BMPs; others may require additional measures not listed here.
Click on the BMP to learn more about each BMP’s purpose and design:
II-4.1 Source Control BMPs
BMP C101: Preserving Natural Vegetation
BMP C102: Buffer Zones
BMP C103: High Visibility Fence
BMP C105: Stabilized Construction Entrance /
Exit
BMP C106: Wheel Wash
BMP C107: Construction Road/Parking Area
Stabilization
BMP C120: Temporary and Permanent Seeding
BMP C121: Mulching
BMP C122: Nets and Blankets
BMP C123: Plastic Covering
BMP C124: Sodding
BMP C125: Topsoiling / Composting
BMP C126: Polyacrylamide (PAM) for Soil
Erosion Protection
BMP C130: Surface Roughening
BMP C131: Gradient Terraces
BMP C140: Dust Control
BMP C150: Materials on Hand
BMP C151: Concrete Handling
BMP C152: Sawcutting and Surfacing Pollution
Prevention
BMP C153: Material Delivery, Storage and
Containment
BMP C154: Concrete Washout Area
BMP C160: Certified Erosion and Sediment
Control Lead
BMP C162: Scheduling
II-4.2 Runoff Conveyance and Treatment BMPs
BMP C200: Interceptor Dike and Swale
BMP C201: Grass-Lined Channels
BMP C202: Channel Lining
BMP C203: Water Bars
BMP C204: Pipe Slope Drains
BMP C205: Subsurface Drains
BMP C206: Level Spreader
BMP C207: Check Dams
BMP C208: Triangular Silt Dike (TSD)
(Geotextile-Encased Check Dam)
BMP C209: Outlet Protection
BMP C220: Storm Drain Inlet Protection
BMP C231: Brush Barrier
BMP C232: Gravel Filter Berm
BMP C233: Silt Fence
BMP C234: Vegetated Strip
BMP C235: Wattles
BMP C236: Vegetative Filtration
BMP C240: Sediment Trap
BMP C241: Temporary Sediment Pond
BMP C251: Construction Stormwater Filtration
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