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20050067 Tahoma Terra - NPDES Permit Oct. Robert W roU Landreape Architect, PS 05008 s 9 October, 18 2005 'go 44405 7th Avenue 5E, 5uite. 203 ~QQ Lacey, WA 98503 Department of the Army s (360) 456-3813 Fax (360) 493-2063 Attn: Jim Green E-mail boWrwdroll corn Seattle District, Corps "of Engineers P.O. Box 3755 Seattle, WA 98124-3755 RE: 200501126, Tahoma Terra, LLC Dear Mr. Green: I am submitting revised JARPA Drawings and the JARPA Application in response to your•Octo;ber 4 letter regarding the referenced project application. The revisions include the following. I) Ordinary High Water Mark (OHW) highlighted for Thompson Creek (not Yelm Creek). The wetland area east of the Thompson Creek Channel does not have a defined stream channel (no OHWM) as confirmed by Steve Shanewise, PWS of The Coot Company. This eastern system has a Depressional structure with a wetland outfall swale. 2) Utility lines have been added to figures. The volume and area of these temporary impacts have been added to the project totals (areas not previously included). 3) Added features to existing drawing that should provide better clarity. Not sure what else is needed; the proposal is very straightforward. We plan to add an artificial water supply (reclaimed water from the City of Yelm) to an existing wetland to enhance it through increasing surface water _persistence. This additional surface water overflow will then flow naturally to an area of effectively drained wetland to restore technical hydrology. Finally, any overflow from the restored wetlands will be directed to Thompson. Creek before entering the neighboring property to the north. 4) Quantities have been added to fill totals. 5) All project wetlands will be placed with designed open space within the overall "development and protected with 100 foot no build buffers. The revised JARPA Application and Drawings have been forwarded to the Agencies along with this letter. The previously submitted Mitigated Determination of Non-Significance, Wetlands Inventory, Wetlands Mitigation Plan, Wetland Rating Forms and Final Drainage Report remained-unchanged so I have not included them in this submittal. As we discussed on the phone, the BE will be forwarded by The Watershed Company within 5 weeks. I trust our response fulfills your request, if not,.please inform me immediately and we will respond. Thank you. ope u l Robert W. Droll, A LA Principal Landscape Architecture Urban Design Site Planning Land Planning Environmental Design Project Management i~ Rabeut W DiroRR Landscape Architect, PS 05008 LLL- October a 18, 2005 -,90 9 &05 7th Avenue 5E, 5uite 203 Lacey, WA 98503 S (360) 456-3813 Department of the Army Attn: Jim Green Fax (360) 493-2063 E-mail bobgrwdroll com Seattle District, Corps of Engineers P.O. Box 3755 Seattle, WA 98124-3755 RE: 200501126, Tahoma Terra, LLC Dear Mr. Green: I am submitting revised JARPA Drawings and the JARPA Application in response to your October 4 letter regarding the referenced project application. The revisions include the following. 1) Ordinary High Water Mark (OHW) highlighted for Thompson Creek (not Yelm Creek)., The wetland area east of the Thompson Creek Channel does not have a defined stream channel (no OHWM) as confirmed by Steve Shanewise, PWS of The Coot Company. This eastern system has a Depressional structure with a wetland outfall Swale. 2) Utility lines have been added to figures. The volume and area of these temporary impacts have been added to the project totals (areas not previously included). 3) Added features to existing drawing that should provide better clarity. Not sure what else is needed; the proposal is very straightforward. We plan to add an artificial water supply (reclaimed water from the City of Yelm) to an existing wetland to enhance it through increasing surface water persistence. This additional surface water overflow will then flow naturally to an area of effectively drained wetland to restore technical hydrology. Finally, any overflow from the restored wetlands will be directed to Thompson Creek before entering the neighboring property to the north. 4) Quantities have been added to fill totals. 5) All project wetlands will be placed with designed open space within the overall'development and protected with 100 foot no build buffers. The revised DARPA Application and Drawings have been forwarded to the Agencies along with this letter. The previously submitted Mitigated Determination of Non-Significance, Wetlands Inventory, Wetlands Mitigation Plan, Wetland Rating Forms and Final Drainage Report remained-unchanged so I have not included them in this submittal. As we discussed on the phone, the BE will be forwarded by The Watershed Company within 5 weeks. I trust our response fulfills your request, if not,.please inform me immediately and we will respond. Thank you. „ R pe fiil Robert W. Droll, A LA Principal Lamlooape Architecture . Urban Design 5rte Planning Land Planning Environmental Design ' Project Management Robert W DTORR Lan'docape Architect, P5 05008\ October 18, 2005 ~Q ~,64405 7th Avenue 5E, 5ute 203 Lacey, WA 98503 Department of the Army ~QS (360) 456-3813 Fax (360) 493-2063 Attn: Jim Green E-mail bobgrwdroll com Seattle District, Corps of Engineers P.O. Box 3755 Seattle, WA 98124-3755 RE: 200501126, Tahoma Terra, LLC Dear Mr. Green: I am submitting revised JARPA Drawings and the JARPA Application in response to your October 4 letter regarding the referenced project application. The revisions include the following. I) Ordinary High Water Mark (OHW) highlighted for Thompson Creek (not Yelm Creek). The wetland area east of the Thompson Creek Channel does not have a defined stream channel (no OHWM) as confirmed by Steve Shanewise, PWS of The Coot Company. This eastern system has a Depressional structure with a wetland outfall swale. 2) Utility lines have been added to figures. The volume and area of these temporary impacts have been added to the project totals (areas not previously included). 3) Added features to existing drawing that should provide better clarity. Not sure what else is needed; the proposal is very straightforward. We plan to add an artificial water supply (reclaimed water from the City of Yelm) to an existing wetland to enhance it through increasing surface water persistence. This additional surface water overflow will then flow naturally to an area of effectively drained wetland to restore technical hydrology. Finally, any overflow from the restored wetlands will be directed to Thompson Creek before entering the neighboring property to the north. 4) Quantities have been added to fill totals. 5) All project wetlands will be placed with designed open space within the overall'development and protected with 100 foot no build buffers. The revised JARPA Application and Drawings have been forwarded to the Agencies along with this letter. The previously submitted Mitigated Determination of Non-Significance, Wetlands Inventory, Wetlands Mitigation Plan, Wetland Rating Forms and Final Drainage Report remained-Imchanged so I have not included them in this submittal. As we discussed on the phone, the BE will be forwarded by The Watershed Company within 5 weeks. I trust our response fulfills your request, if not,-please inform me immediately and we will respond. Thank you. R pe ful Robert W. Droll, A LA Principal Landscape Architecture Urban Design 5ite Planning Land Planning Environmental Design ' Project Management AGENCY USE ONLY Agency Reference # Date Received Circulated by (local govt or agency) JOINT AQUATIC RESOURCES PERMIT APPLICATION FORM (JARPA) (for use in Washington State) M PLEASE TYPE OR PRINT IN BLACK INK. O TO FILL IN ELECTRONICALLY USE F11 TO MOVE THROUGH THE FORM ? Application for a Fish Habitat Enhancement Project per requirements of RCW 77.55.290 You must submit a copy of this completed JARPA application form and the (Fish Habitat Enhancement JARPA Addition) to your local Government Planning Department and Washington Department of Fish & Wildlife Area Habitat Biologist on the same day. NOTE: LOCAL GOVERNMENTS - You must submit any comments on these projects to WDFW within 15 working days. Based on the instructions provided, I am sending copies of this application to the following (check all that apply) Ox Local Government for shoreline: nSubstantlal Development E]Conditional Use []Variance E]Exemptlon Revision QFloodplain Management nx Critical Areas Ordinance rx Washington Department of Fish and Wildlife for HPA (Submit 3 copies to WDFW Region) nx Washington Department of Ecology for 401 Water Quality Certification (to Regional Office-Federal Permit Unit) ? Washington Department of Natural Resources for Aquatic Resources Use Authorization Notification nx Corps of Engineers for. [x Section 404 E] Section 10 permit ? Coast Guard for: ? General Bridge Act Permit ? Private Aids to Navigation (for non-bridge projects) E] For Department of Transportation projects only This project will be designed to meet conditions of the most current Ecology/Department of Transportation Water Quality Implementing Agreement SECTION A - Use for all permits covered by this application. Be sure to ALSO complete Section C (Signature Block) for all permit applications. 1 APPLICANT Tahoma Terra LLC MAILING ADDRESS 42006 th Avenue SE, Suite 301, Lacey, WA 98503 WORK PHONE E-MAIL ADDRESS HOME PHONE FAX # (360) 951 7868 rgdinc@ywave com If an agent is acting for the applicant during the permit process, complete #2. Be sure agent signs Section C (Signature Block) for all permit applications 2. AUTHORIZED AGENT Robert W. Droll Landscape Architect, PS MAILING ADDRESS 44057 th Avenue SE, Suite 203, Lacey, WA 98503 WORK PHONE E-MAIL ADDRESS HOME PHONE FAX # (360)456-3813 Bob@rwdroll.com (360)493-2063 3 Relationship of applicant to property nx OWNER PURCHASER Ej LESSEE n 4 Name, address and phone number of property owner(s) if other than applicant 5 Location (street address, including city, county and zip code, where proposed activity exists or will occur) 220 Acres south of Berry Valley Rd and East of Longmire Street, Thurston County, City of Yelm Local government with jurisdiction (city or county) City of Yelm Waterbody you are working in Thompson Creek Tributary of WRIA # Is this waterbody on the 303(d) List'" YES E] NO nx Nisqually River 11 If YES, what parameter(s)? Shoreline designation NONE "For 303d List, http //www ecy wa gov/programs/wci/303d/index html Zoning designation Master Plan Community % Section Section Township Range Government Lot SW 24 17N 1E DNR stream type if known 3 Latitude and Longitude: 46.9N 122.6W Tax Parcel Number 21723410000, 21724320000, 21724310100,21723440000,21724330000,21724340100 1 ECY 070-15 (Rev 11/04) JARPA Contact the State of Washington Office of-Regulatory Assistance for latest version or call 360/407-7037 or 800/917-0043 6. Describe the current use of the property, and structures existing on the property Have you completed any portion of the proposed activity on this property? ? YES rx NO For any portion of the proposed activity already completed on this property, indicate month and year of completion. The property has been operated as a dairy farm for decades. this use ceased as of 2005, and the entire property is now being converted into moderate density residential development (4 dwelling units/acre per Yelm Zoning Code) All existing farm buildings have been removed, and Phase 1 of the residential development (which is outside wetlands) has begun. Completion of Phase I is scheduled for Spring 2006. Is the property agricultural land? YES ?x NO Are you a USDA program participant? YES ~x NO 7a Describe the proposed work that needs aquatic permits: Complete plans and specifications should be provided for all work waterward of the ordinary high water mark or line, including types of equipment to be used If applying for a shoreline permit, describe all work within and beyond 200 feet of the ordinary high water mark. If you have provided attached materials to describe your project, you still must summarize the proposed work here. Attach a separate sheet if additional space is needed Aquatic permits will be necessary for construction of an arterial roadway across the Thompson Creek drainage and its associated wetlands. All machinery normally associated with road construction will be used for this project. Detailed drawings of proposed roadway construction are attached PREPARATION OF DRAWINGS: See sample drawings and guidance for completing the drawings ONE SET OF ORIGINAL OR GOOD QUALITY REPRODUCIBLE DRAWINGS MUST BE ATTACHED. NOTE Applicants are encouraged to submit photographs of the project site, but these DO NOT substitute for drawings THE CORPS OF ENGINEERS AND COAST GUARD REQUIRE DRAWINGS ON 8-112 X 11 INCH SHEETS. LARGER DRAWINGS MAYBE REQUIRED BY OTHER AGENCIES. 7b Describe the purpose of the proposed work and why you want or need to perform it at the site Please explain any specific needs that have influenced the design An arterial road crossing of the linear Thompson Creek system and associated wetlands is necessary to provide access to and between two large upland areas within Yelm City Limits on opposite sides of the creek. Avoidance of the creek and wetlands is not possible because the system extends across the entire length of the property and beyond in both directions. 7c. Describe the potential impacts to characteristic uses of the water body. These uses may include fish and aquatic life, water quality, water supply, recreation and aesthetics. Identify proposed actions to avoid, minimize, and mitigate detrimental impacts and provide proper protection of fish and aquatic life. Identify which guidance documents you have used Attach a separate sheet if additional space is needed. Functional impacts to the Thompson Creek system will be minimal. Existing, small diameter round culvert crossings will be replaced with wide, arched pre-cast concrete culverts that will allow for placement of Habitat Mix along the bottom. Impacts include dredging and refilling of areas under ends of arched culverts; trenching and refilling (temporary) of three utility lines running parallel to the road; and placement of fill (permanent) above the concrete culverts. None of these impacts will negatively affect the aquatic life and water quality of the Creek. Additionally, 0.067 acres (less than one-tenth of an acre) of wetlands will have raised boardwalks over them, the bottom elevation of which will be a minimum one-foot above the ordinary high water line (OHW). Boardwalks will have no negative impacts on aquatic life and water quality and will enhance aesthetics (natural wood design) and passive recreation (part of scenic walkways and wildlife viewing) Existing shade trees will only be removed along the one Thompson Creek portion that will be located within the arched culverts. All existing surface water flow paths will be maintained. Impacts have been minimized by aligning the new road with an existing farm road that presently crosses Thompson Creek and its associated wetlands. Compensation for the area of filled wetlands will be provided through enhancement and restoration of partially and effectively drained wetlands degraded through past drainage activities. A complete Wetlands Mitigation Plan is attached to this JARPA submittal patterned after the Guidelines for Developing Freshwater Wetlands Mitigation Plans and Proposals (March 1994; Publication #94-29) 7d. For in water construction work, will your project be in compliance with the State of Washington water quality standards for turbidity WAC 173 201A-110? 0 YES NO (See USEFUL DEFINITIONS AND INSTRUCTIONS) 8. WIII the project be constructed in stages? YES E] NO Fx Proposed starting date- June 2006 Estimated duration of activity: 4 months 9 Check if any temporary or permanent structures will be placed 2 Fx Waterward of the ordinary high water mark or line for fresh or tidal waters AND/OR Waterward of the mean higher high water for tidal waters? 10 WIII fill material (rock, fill, bulkhead, or other material) be placed Fx~ Waterward of the ordinary high water mark or line for fresh waters? If YES, VOLUME (cubic yards) 1,939 / AREA 0.30 (acres) F1 Waterward of the mean higher high water for tidal waters? If YES, VOLUME (cubic yards) / AREA (acres) ECY 070-15 (Rev 11/04) JARPA Contact the State of Washington Office of Regulatory Assistance for latest version or call 360/407-7037 or 800/917-0043 11 Will material be placed in wetlands? FA] YES NO If YES A Impacted area in acres. 0.30 B Has a delineation been completed? If YES, please submit with application FA] YES EJ NO C Has a wetland report been prepared? If YES, please submit with application 0 YES NO D Type and composition of fill material (e.g , sand, etc.) Native soil E. Material source: on site upland excavation F List all soil series (type of soil) located at the project site, and indicate if they are on the county's list of hydric soils Soils information can be obtained from the natural Resources Conservation Service (NRCS). Spanaway gravelly sandy loam G WILL PROPOSED ACTIVITY CAUSE FLOODING OR DRAINING OF WETLANDS? YES 0 NO If YES, IMPACTED AREA IS ACRES OF DRAINED WETLANDS NOTE If your project will impact greater than % of an acre of wetland, submit a mitigation plan to the Corps and Ecology for approval along with the JARPA form NOTE, A 401 water quality certification will be required from Ecology in addition to an approved mitigation plan if your project impacts wetlands that are. a) greater than'% acre in size, or b) tidal wetlands or wetlands adjacent to tidal water Please submit the JARPA form and mitigation plan to Ecology for an individual 401 certification if a) or b) applies 12. Stormwater Compliance for Nationwide Permits Only- This project is (or will be) designed to meet ecology's most current stormwater manual, or an Ecology approved local stormwater manual E YES NO If YES - Which manual will your project be designed to meet? 1992 DOE Stormwater Manual If NO - For clean water act Section 401 and 404 permits only - Please submit to Ecology for approval, along with this JARPA application, documentation that demonstrates the stormwater runoff from your project or activity will comply with the water quality standards, WAC 173 201(A) 13 Will excavation or dredging be required in water or wetlands? E YES NO If YES: A Volume: 668 (cubic yards) /area 0.08 (acre) B Composition of material to be removed. Spa away gravelly sandy loam/Silty sand C Disposal site for excavated material- Off site D Method of dredging: backhoe 14 Has the State Environmental Policy Act (SEPA) been completed 0 YES EJ NO SEPA Lead Agency City of Yelm SEPA Decision DNS, MDNS, EIS, Adoption, Exemption MDNS Decision Date (end of comment period) May 24, 2005 SUBMIT A COPY OF YOUR SEPA DECISION LETTER TO WDFW AS REQUIRED FOR A COMPLETE APPLICATION 15 List other Applications, approvals or certifications from other federal, state or local agencies for any structures, construction discharges or other activities described in the application (i.e. preliminary plat approval, health district approval, building permit, SEPA review, federal energy regulatory commission license (FERC), Forest practices application, etc.). Also, indicate whether work has been completed and indicate all existing work on drawings NOTE: For use with Corps Nationwide Permits, identify whether your project has or will need an NPDES permit for discharging wastewater and/or stormwater TYPE OF APPROVAL ISSUING AGENCY IDENTIFICATION DATE OF APPLICATION DATE APPROVED COMPLETED9 NO Master Plan City of Yelm MP-0067-05- YL May, 2005 August 2005 2, No Preliminary Plat City of Yelm SUB0068--05YL- May, 2005 August 2005 2, NO 3 16 Has any agency denied approval for the activity you're applying for or for any activity directly related to the activity described herein? F1 YES nx NO If YES, explain. ECY 070-15 (Rev 11/04) JARPA Contact the State of Washington Office of Regulatory Assistance for latest version or call 360/407-7037 or 800/917-0043 4 SECTION B - Use for Shoreline and Corps of Engineers permits only; 17a. Total cost of project This means the fair market value of the project, including materials, labor, machine rentals, etc Total Site Development Cost of Project is $4,000,00. Cost of Work over wetlands and Thompson Creek is $300,000. 17b If a project or any portion of a project receives funding from a federal agency, that agency is responsible for ESA consultation Please indicate if you will receive federal funds and what federal agency is providing those funds. See instructions for information on ESA FEDERAL FUNDING ? YES Ex NO If YES, please list the federal agency 18. Local government with jurisdiction- City of Yelm 19 For Corps, Coast Guard and DNR permits, provide names, addresses and telephone numbers of adjoining property owners, lessees, etc. - Please note: Shoreline Management Compliance may require additional notice - consult your local government NAME ADDRESS PHONE NUMBER Mary Louise Clemens 15030 Longmire St. SE, Yelm, WA 98597 360 352.4272 Crest Builders Inc 9910 Durant St SE, Yelm, WA 98597 Unknown Mark Shaffer Unknown 360-459-8303 James Ramirez Unknown Unknown Richard E Slaughter 14940 Berry Valley Rd. SE, Yelm, WA 98597 360 458.4740 Elaine C Horsak 14820 Berry Valley Rd. SE, Yelm, WA 98597 360 458.5463 Barbara Noonan 14812 Berry Valley Rd. SE, Yelm, WA 98597 Unknown Virgil Baker 14501 Berry Valley Rd SE, Yelm, WA 98597 360.458 7302 Patsy Purvis 14501 Berry Valley Rd. SE, Yelm, WA 98597 360 458 7322 Thurston Highlands, LLC 14508 Berry Valley Rd SE, Yelm, WA 98597 360 493.6004 McKenzie Family, LLC Unknown Unknown Patrick J & Anke Thomas 14508 Berry Valley Rd SE, Yelm, WA 98597 360 753.2955 Conrad Leprowse/Jenise 15009 SR 507 SE, Yelm, WA 98597 Unknown Mugler TVGCC, LLC 15425 Mosman SW, Yelm, WA 98597 Unknown Terra Valley, LLC 14947 Longmire St. SE, Yelm, WA 98597 Unknown Elene H Newby 15105 Longmire St SE, Yelm, WA 98597 Unknown 5 SECTION C - This section MUST be completed for an permit covered b this application 20 Application is hereby made for a permit or permits to authorize the activities described herein I certify that I am familiar with the information contained in this application, and that to the best of my knowledge and belief, such information is true, complete, and accurate I further certify that I possess the authority to undertake the proposed activities I hereby grant to the agencies to which this application is made, the right to enter the above-described location to inspect the proposed, in-progress or completed work. I agree to start work ONLY after all necessary permits have been received. DATE 7 SIGN E OF AP (CANT D 1016 ~oS / ~VltR Li DATE Cl/ : C~ SIGNATURE OF AU HORIZED AGENT 1 HEREBY DESIGNATE TO ACT AS MY AGENT IN MATTERS RELATED TO THIS APPLICATION FOR PERMIT(S) I UNDERSTAND THAT IF A FEDERAL PERMIT IS ISSUED, I MUST SIGN THE PERMIT SIGN RE OF APPLICANT DATE SIGNATURE OF LANDOWNER (EXCEPT PUBLIC ENTITY LANDOWNERS, E G. DNR) THIS APPLICATION MUST BE SIGNED BY THE APPLICANT AND THE AGENT, IF AN AUTHORIZED AGENT IS DESIGNATED 18 U.S C §1001 provides that Whoever, in any manner within the jurisdiction of any department or agency of the United States knowingly falsifies, conceals, or covers up by any trick, scheme, or device a material fact or makes any false, fictitious, or fraudulent statements or representations or makes or uses any false writing or document knowing same to contain any false, fictitious, or fraudulent statement or entry, shall be fined not more than $10,000 or imprisoned not more than 5 years or both. COMPLETED BY LOCAL OFFICIAL A. Nature of the existing shoreline. (Describe type of shoreline, such as marine, stream, lake, lagoon, marsh, bog, swamp, flood plain, floodway, delta; type of beach, such as accretion, erosion, high bank, low bank, or dike, material such as sand, gravel, mud, clay, rock, nprap, and extent and type of bulkheadmg, if any) B. In the event that any of the proposed buildings or structures will exceed a height of thirty-five feet above the average grade level, indicate the approximate location of and number of residential units, existing and potential, that will have an obstructed view- C. If the application involves a conditional use or variance, set forth in full that portion of the master program which provides that the proposed use may be a conditional use, or, in the case of a variance, from which the variance is being sought- These Agencies are Equal Opportunity and Affirmative Action employers For special accommodation needs, please contact the appropriate agency in the instructions ECY 070-15 (Rev 11/04) JARPA Contact the State of Washington Office of Regulatory Assistance for latest version or call 360/407-7037 or 800/917-0043 6 N(SOUALLY C Washington State REACH 5 Project Site Yelm, Washington Thurston County 5 State Map PvE ao PACIFIC FORT LEWI' 510 MILITARY ppp ~ Lacey NISQ RESERVATION Z D INDIAN w N ~ P w RESERVATION o v Q~P~ Mac Cre a ~Q Roy HWY a M oma Terra 510 507 Project Site FORT LEWIS Yelm 702 p MILITARY RESERVATION 61 n 507 o LAT 46'-56'-27" sF LONG. 122'-37'-48" ainier Driving Directions to the Project Site Take 1-5 North/South to Exit 0 111. Follow Marvin Rd. SE to PsOh~ Hwy 510. Follow Hwy 510 East tes to Yelm, Washington. R/per u Location Map _ SCALE: 1"=4000' REFERENCE #200501126 PURPOSE: Provide Pedestrian Access to Location Map PROJECT DESCRIPTION: Fill Wetlands to Neighborhoods Provide Road and Utilities. Accomodate Pedestrian Access with Boardwalks. IN: CITY OF YELM LOCATION: SEC. 24, T17N, RANGE 1E WM Tahoma Terra COUNTY OF: THURSTON, WA APPLICATION BY: Tahoma Terra LLC. SHEET 1 of 13 DATUM: NGVD 29 9 DATE: 10/17/05 DRAWING NAME: 050081ocation.dw TO LACEY RIVER NISQUALL Y so I~~ c~ m yo 89TH AVE. w ~ o cn ct~ Q:: z Cr- CC 0 co CL 93RD AVE. m o = w N o y~~ Tahoma Terra cRFF~ YELM HIGH SCHOOL Project Site RRY VALLEY Lat. N 46 56'27" - Long. W 122° 37'48" RD. E LONGMIRE ST. ~ O - - - O 103RD c: GOLF & VE. COUNTRY CLUB AVE. H 105TH WAY ck:: Q-_ GEORGE RD. FOX HILL a J HWY 507 109TH AVE. c' Q TO McKENNA / • TO RAINIER Vicinity Map _ SCALE: 1"=3000' REFERENCE #200501126 PURPOSE: Provide Pedestrian Access to Vicinity Map PROJECT DESCRIPTION: Fill Wetlands to Neighborhoods Provide Road and Utilities. Accomodate Pedestrian Access with Boardwalks. IN: CITY OF YELM LOCATION: SEC. 24, T17N, RANGE 1E WM Tahoma Terra COUNTY OF: THURSTON, WA APPLICATION BY: Tahoma Terra LLC. SHEET 2 of 13 DATUM: NGVD 29 DATE: 10/17/05 DRAWING NAME: 05008vicinit.dw FASO l Fir 'I' 'Y `s'O 15 14 13 12 11 10 9 8 7 5 4 BER Y VA LE RD. SE 1 V) 3 APPLIC TION l IMPACT AREA. z 2 16 1 LON MIRE ST SE 21 22 S~'yti Project Site 20g0~ 17 18 19 ADJACENT PROPERTY OWNERS (within 300' of Project Site) 1. MARY LOUISE CLEMENS, 15030 LONGMIRE ST. SE YELM 98597 2. CREST BUILDERS INC., 9910 DURANT ST. SE YELM 98597 3. MARK SHAFFER, NO SITE ADDRESS 4. JAMES A. RAMIREZ, NO SITE ADDRESS 5. RICHARD E. SLAUGHTER, 14940 BERRY VALLEY RD. SE YELM 98597 6. RICHARD E. SLAUGHTER, 14940 BERRY VALLEY RD. SE YELM 98597 7. ELAINE C. HORSAK, 14920 BERRY VALLEY RD. SE YELM 98597 8. ELAINE C. HORSAK, 14848 BERRY VALLEY RD. SE YELM 98597 9. BARBARA NOONAN, 14812 BERRY VALLEY RD. SE YELM 98597 10. BARBARA NOONAN, 14747 BERRY VALLEY RD. SE YELM 98597 11. VIRGIL R. & DARLENE E. BAKER LIVING TRUST, NO SITE ADDRESS 12. VIRGIL R. BAKER, 14501 BERRY VALLEY RD. SE YELM 98597 13. PATSY L. PURVIS, 14504 BERRY VALLEY RD. SE YELM 98597 14. PATSY L. PURVIS, 14504 BERRY VALLEY RD. SE YELM 98597 15. THURSTON HIGHLANDS ASS'N LLC, 14508 BERRY VALLEY RD. SE YELM 98597 16. THURSTON HIGHLANDS ASS'N LLC, NO SITE ADDRESS 17. MCKENZIE FAMILY LLC, NO SITE ADDRESS 18 PATRICK J. & ANKE THOMAS, 14628 GEORGE RD. SE YELM 98597 19. CONRAD LEPROWSE/JENISE K. MUGLER, 15009 STATE ROUTE 507 SE YELM 98597 20. TVGCC LLC, 15425 MOSMAN AVE. SW YELM 98597 21. TERRA VALLEY LLC, 14947 LONGMIRE ST. SE YELM 98597 22. ELENE H NEWBY, 15105 LONGMIRE ST. SE YELM 98597 Adjacent Property Owners Map_dk_ NOT TO SCALE REFERENCE #200501126 PURPOSE: Provide Pedestrian Access to Adjacent Property Owners PROJECT DESCRIPTION: Fill Wetlands to Neighborhoods Provide Road and Utilities. Accomodate Pedestrian Access with Boardwalks. IN. CITY OF YELM LOCATION: SEC. 24, T17N, RANGE 1E WM Tahoma Terra COUNTY OF: THURSTON, WA APPLICATION BY: Tahoma Terra LLC. SHEET 3 of 13 DATUM: NGVD 29 DATE- 10/17/05 DRAWING NAME: 05008owners.dw Boardwalk Crossing A I c I ; I iii I 1(I i Boardwalk, Crossing B ~q\\ \ ,M1 btu" ti Road/Utilities _ Crossingg #1 i f- EOMMUNIY x ARK . - _ _-m ARTIFICIAL PICNI _ HYDRONPUT Road/Utilities \ \ '\\SHELTER Crossing #2 Boardwalk Crossing D Boardwalk Crossing C~ Site Plan SCALE: 1"=300 ' REFERENCE #200501126 PURPOSE: Provide Pedestrian Access to Site Plan PROJECT DESCRIPTION: Fill Wetlands to Neighborhoods Provide Road and Utilities. Accomodate Pedestrian Access with Boardwalks. IN: CITY OF YELM Tahoma Terra COUNTY OF: THURSTON, WA LOCATION: SEC. 24, T17N, RANGE 1E WM APPLICATION BY: Tahoma Terra LLC. SHEET 4 of 13 DATUM. NGVD 29 DATE: 10/17/05 DRAWING NAME: 05008site.dw WETLAND, , g' BOARDWALK, 340• S.F. OVER. WETLAND, „B©UNDARY. $ PIN FOUNDATIONS IN WETLAND 4' GRAVEL PATH UP I LAND RESTORED WETLAND \ \ I BOUNDARY PROPOSED RESTORED „THgMP,SQN, t WETLAND WETLAND CREEK COMMON BOUNDARY OF CREEK. AND UPLAND. 4 WETLAND, APPROX. OHW EL. 330 GRA VELi PATH } NOTE: REFER TO. SHEET 13 FOR SUMMARY OF QUANTITIES i Plan View SCALE: 1"=20' 12' OVER CREEK BOTTOM 44 RAIL ON 2x4 SPACERS 3x8 DECKING GUSSET PLATE 6x10 JOIST I oil /1 11 4 11 11 11 111 EX. BOTTOM OF BEAM APPROX. EL 331.0 PROPOSED WETLAND RESTORED WETLAND 6x8 BEAM OHW, APPROX. EL. 330 CREEK PIN FOUNDATION Elevation NOT TO SCALE REFERENCE #200501126 PURPOSE: Provide Pedestrian Access to Boardwalk Crossing A PROJECT DESCRIPTION: Fill Wetlands to Neighborhoods Provide Road and Utilities. Accomodate Pedestrian Access with Boardwalks. IN: CITY OF YELM LOCATION- SEC. 24, T17N, RANGE 1E WM Tahoma Terra COUNTY OF: THURSTON, WA APPLICATION BY: Tahoma Terra LLC. SHEET 5 of 13 DATUM: NGVD 29 DATE: 10/17/05 DRAWING NAME: 05008crossin s.dw 'r- WETLANa-,.;B(lU~1DAI~Y WETLAND BOUNDARY OHW 4' GRAVEL PATH / UPLAND UPLAND j 8' BOARDWALK, 140 S.F. OVER WETLANDS, 3 PIN 4' GRAVEL FOUNDATIONS IN WETLAND PATH 8' BOARDWALK, IEEK' .1 165 S.F. OVER TRIBUTARY WETLANDS, 2 PIN 4' GRAVEL UPLAND FOUNDATIONS IN PATH WETLAND . WETLAND J I BOUNDARY & I NOTE: REFER TO SHEET 13 FOR SUMMARY Plan Vie OHW OF QUANTITIES SCALE: 1°=20' 12' SPAN OVER CREEK OR TRIBUTARY 44 RAIL ON 2x4 SPACERS GUSSET 3x8 DECKING PLATES 6x16 JOIST BOTTOM OF BEAM APPROX. EL 331.0 WETLAND WETLAND OHW, APPROX. EL. 330 6x10 BEAM ---CREEK OR TRIBUTARY - - BOTTOM-- PIN FOUNDATION Elevation NOT TO SCALE REFERENCE #200501126 PURPOSE: Provide Pedestrian Access to Boardwalk Crossing B PROJECT DESCRIPTION: Fill Wetlands to Neighborhoods Provide Road and Utilities. Accomodate Pedestrian Access with Boardwalks. IN. CITY OF YELM LOCATION: SEC. 24, T17N, RANGE 1E WM Tahoma Terra COUNTY OF: THURSTON, WA APPLICATION BY: Tahoma Terra LLC. SHEET 6 of 13 DATUM: NGVD 29 DATE: 10/17/05 DRAWING NAME: 05008crossin s.dw UPLAND UPLAND \ UPLAND 8' GRAVEL V, \•.Y, CREEK 1 PATH 8'. GRAVEL PA TH'- OHW \ . WE TL ANQ, BQUNDARY'' 100' SY: 'OVER: WETLAND,'. 4 PIN FOUNDATIONS."Ik WETLA WETLANQ. WETLAND „B0tJNDARY,:, NQTE•'REFER 0,'-SHEET WETLAND;;'•6;-P„„IN; ,.'8 ~ GRAVEL" \ S:IMMARY D!" •GIUAMTfF~ES !FQ(lf~D 4Tf(JNS. Ifd';- PATH Plan, View' FX." RAILROAD SCALE:. 1"=20' 12' 3x8 DECKING 4x4 RAIL ON GUSSET 2x4 SPACERS 6x16 JOIST PLATES BOTTOM OF BEAM APPROX. EL 331.0 OHW, APPROX. EL. 330 6x10 BEAM J CREEK BOTTOM OR- WETLAND PIN FOUNDATION Elevation REFERENCE #200501126 NOT TO SCALE PURPOSE: Provide Pedestrian Access to Boardwalk Crossing C PROJECT DESCRIPTION: Fill Wetlands to Neighborhoods Provide Road and Utilities. Accomodate Pedestrian Access with Boardwalks. IN. CITY OF YELM LOCATION: SEC. 24, T17N, RANGE 1E WM Tahoma Terra COUNTY OF: THURSTON, WA APPLICATION BY: Tahoma Terra LLC. SHEET 7 of 13 DATUM: NGVD 29 DATE: 10/17/05 DRAWING NAME: 05008crossin s.dw O. COMMUNITY PARK UPLAND 8' AS1'HAL;T;;PA,TH; , WETLAND BOQNDARY'-- WETL'ANp ETL AN W ..."64(1 ARY" , ; PICNIC 5HEt.T~,R 8``sOAb WA'LfG,,, r,` 795 S,F: OVER, BARBEQUE. GRILL.; UPLAND WE;TL"AND,43:, PIN FOUNDATIONS; 1N- WE'~'L"AND, : , , , NOTE: REFER .T0, SHEET' 13, FOP. SUMMARY,,,,, b~' Qt1;9NrIrfES ' ASPHALT P1"an 'view" B ATH., Oki SCALE: 140}-' 12' MAX. Z 44 RAIL ON GUSSET 3x8 DECKING 2x4 SPACERS 6x10 JOIST PLATE 77-7r- I BOTTOM OF BEAM APPROX. EL 331.0774 6x8 BEAM OHW, APPROX. EL. 330 - WETLAND PIN FOUNDATION Section NOT TO SCALE REFERENCE #200501126 PURPOSE: Provide Pedestrian Access to Boardwalk Crossing D PROJECT DESCRIPTION: Fill Wetlands to Neighborhoods Provide Road and Utilities. Accomodate Pedestrian Access with Boardwalks. IN: CITY OF YELM LOCATION: SEC. 24, T17N, RANGE 1E WM Tahoma Terra COUNTY OF. THURSTON, WA APPLICATION BY: Tahoma Terra LLC. SHEET 8 of 13 DATUM: NGVD 29 DATE: 10/17/05 DRAWING NAME: 05008crossin s.dw ryO f o AREA=•915 SE j` o \ (TEMP. IMP CT =ing Utilities p`- r~ OHw LINE #1 WETLAND °oo BgpNDARY,5p,f ~i b ~ ? \ WETLAND BOUNDARY ~ - ~ AREA=3 672 SF AREA=405 SF VOLUME= 990.2 CY y EKE 1 495;,SI` (TEMP. IMPACT)`,VOLUME= -T93:0 ,C`Y AREA=665 SF_ .`VOLUME=,,- 7- °`CY WETLAND AREA=657 SF° BOUNDARY \ 1 VOLUME=„ `178. CY n'AREA=165 SF 1 VOL , UMEoa--c Road/Utilities 1 R / 715 SF Crossing #2 AEA, (TEM IMPACT) AREA=1,584 SF WETLAND VOLUME= 346.4 CY BOUNDARY \ OHW LINE Plan ew SCALE: 1" 80' Road/Utilities Crossing #1 Road/Utilities Crossing #2 SURFACE AREA BETW. WETLAND BOUNDARIES SURFACE AREA BETW. WETLAND BOUNDARIES -PERMANENT IMPACT 3,071 SF -PERMANENT IMPACT 5,167 SF -TEMPORARY IMPACT 1,120 SF -TEMPORARY IMPACT 915 SF TOTAL 4,191 SF TOTAL 6,082 SF PERMANENT VOLUME OF FILL WITHIN WETLAND BOUNDARIES PERMANENT VOLUME OF FILL WITHIN WETLAND BOUNDARIES TOTAL 603.1 CY TOTAL 1,183.2 CY Trench Excavations 10" WATER RE-USE LINE 12" WATER MAIN LINE 12" STEP MAIN LINE SURFACE AREA WITHIN FLOODPLAIN 1,314 SF SURFACE AREA WITHIN FLOODPLAIN 1,344 SF SURFACE AREA WITHIN FLOODPLAIN 1,531 SF SURFACE AREA WITHIN WETLAND SURFACE AREA WITHIN WETLAND SURFACE AREA WITHIN WETLAND BOUNDARIES BOUNDARIES BOUNDARIES -PERMANENT 0 SF -PERMANENT 111.0 SF -PERMANENT 100.1 SF -TEMPORARY 204 SF -TEMPORARY 111.0 SF -TEMPORARY 100.1 SF TOTAL - WETLAND BOUNDARIES 204 SF TOTAL - WETLAND BOUNDARIES 222.0 SF TOTAL - WETLAND BOUNDARIES 201.0 SF VOLUME WITHIN FLOODPLAIN 337.3 CY VOLUME WITHIN FLOODPLAIN 348.4 CY VOLUME WITHIN FLOODPLAIN 4208 CY VOLUME WITHIN WETLAND VOLUME WITHIN WETLAND VOLUME WITHIN WETLAND BOUNDARIES BOUNDARIES BOUNDARIES -PERMANENT 0.0 CY -PERMANENT 28.7 CY -PERMANENT 26.0 CY -TEMPORARY 55.6 CY -TEMPORARY 28.8 CY -TEMPORARY 26.1 CY TOTAL - WETLAND BOUNDARIES 55.6 CY TOTAL - WETLAND BOUNDARIES 57.5 CY TOTAL - WETLAND BOUNDARIES 52.1 CY REFERENCE #200501126 NOTE: REFER TO SHEET 13 FOR SUMMARY OF QUANTITIES PURPOSE. Provide Pedestrian Access to Road/Utilities Crossings 1 & 2 PROJECT DESCRIPTION: Fill Wetlands to Neighborhoods Provide Road and Utilities. Accomodate Pedestrian Access with Boardwalks IN: CITY OF YELM LOCATION: SEC. 24, T17N, RANGE 1E WM Tahoma Terra COUNTY OF: THURSTON, WA APPLICATION BY: Tahoma Terra LLC. SHEET 9 of 13 DATUM: NGVD 29 DATE: 10/17/05 DRAWING NAME:05008roadcross.dw 4" ASPHALTIC CONCRETE PAVEMENT TYP. 4" CRUSHED SURFACING TOP COURSE COMPACTED TO 95% AT 4" LIFTS PROCESS MINERAL 12" BASE COURSE (DOT SPEC. AGGREGATE 9-03.9(3)), COMPACTED TO 95% COMPACTED TO 90% AT 4" LIFTS AT 8' MAX. LIFTS Ln o(0 or_~ J ~ U J W S C~ a d a a < X0.1'3 a 100 YR. STORM a, EL. 331.0 OHW EL. 330.0 a t 'I > x • r ~r ,Q rz*, -t------ ham.. 3 F f ' y ° EL. 324.0 A a ,a EX. 5 of," 12" DEPTH OF 8" HABITAT TYP. DEPTH OF 10" 12" STEP 1%4" BASE COURSE MIX (STREAM WATER RE-USE MAIN & 12" (DOT SPEC. ENHANCEMENT) LINE WATER MAIN 9-03.9(3)), FLOW LINE 4" PERF. ADS PIPE, 2% SLOPE TO COMPACTED TO 95% AT 4" LIFTS (DEPTH EL. 327 OUTFALL DRAINROCK, AROUND 6" PER GEOTECHNICAL 16'-0" SPAN MIN., WRAPPED BY MIRAFI 500 TYP. ENGINEER REPORT) STREAM ENHANCEMENT WILL CONSIST OF 8" DEPTH OF HABITAT MIX (SEE LEAN CONCRETE SIEVE ANALYSIS BELOW AND WILL TOTAL 60 TONS/36 CUBIC YARDS. CAST-IN-PLACE, 3000 PSI, 4: MIN. THICKNESS PERCENT PASSING SIZE 100 4.5-IN. 80-95 2-IN. 50-80 3/4-I1\1. 30-50 NO. 4 SIEVE NOTE. REFER TO SHEET 13 FOR 0-8 NO. 200 SIEVE SUMMARY OF QUANTITIES Road Crossing #1 Section/Elevation REFERENCE #200501126 NOT TO SCALE PURPOSE. Provide Pedestrian Access to Road Crossing #1 PROJECT DESCRIPTION: Fill Wetlands to Neighborhoods Section/Elevation Provide Road and Utilities. Accomodate Pedestrian Access with Boardwalks. IN: CITY OF YELM LOCATION: SEC 24, T17N, RANGE 1E WM Tahoma Terra COUNTY OF. THURSTON, WA APPLICATION BY: Tahoma Terra LLC SHEET 10 of 13 DATUM: NGVD 29 DATE: 10/17/05 DRAWING NAME: 05008roadcross.dw 4" ASPHALTIC CONCRETE PAVEMENT TYP. 4" CRUSHED SURFACING TOP COURSE COMPACTED TO 95% AT 4" LIFTS 12" BASE COURSE (DOT SPEC. PROCESS MINERAL 9-03.9(3)), COMPACTED TO 95% AGGREGATE AT 4" LIFTS COMPACTED TO 90% N AT 8" MAX. LIFTS o~ cr_~ J ~ U J W 100 YR. STORM OHW EL. 330.0 EL. 331.0 V ; k, 7- EL. 324.0 P 1-4 tee. EX. - - - GRADE DEPTH OF 8" HABITAT 12" DEPTH OF 10" J 12" STEP 1/4' BASE COURSE (DOT SPEC. MIX (STREAM TYP. WATER RE-USE MAIN & 12" LINE WATER MAIN 9-03.9(3)), ENHANCEMENT) COMPACTED TO 95% 4" PERF. ADS PIPE, 2% SLOPE TO AT 4" LIFTS (DEPTH FLOW LINE OUTFALL DRAINROCK, AROUND 6" PER GEOTECHNICAL EL. 327 ENGINEER REPORT) MIN., WRAPPED BY MIRAFI 500 TYP. 16'-0" SPAN LEAN CONCRETE STREAM ENHANCEMENT WILL CONSIST OF 8" DEPTH OF HABITAT MIX (SEE CAST-IN-PLACE, 3000 SIEVE ANALYSIS BELOW AND WILL TOTAL 60 TONS/36 CUBIC YARDS. PSI, 4: MIN. THICKNESS PERCENT PASSING SIZE 100 4.5-IN. 80-95 2-IN. 50-80 3/4-I1\1. 30-50 NO. 4 SIEVE NOTE: REFER TO SHEET 13 FOR 0-8 NO. 200 SIEVE SUMMARY OF QUANTITIES Road Crossing #2 Section/Elevation REFERENCE #200501126 NOT TO SCALE PURPOSE: Provide Pedestrian Access to Road Crossing #2 PROJECT DESCRIPTION. Fill Wetlands to Neighborhoods Section/Elevation Provide Road and Utilities. Accomodate Pedestrian Access with Boardwalks IN: CITY OF YELM LOCATION: SEC. 24, T17N, RANGE 1E WM Tahoma Terra COUNTY OF: THURSTON, WA APPLICATION BY: Tahoma Terra LLC. SHEET 11 of 13 DATUM: NGVD 29 DATE: 10/17/05 DRAWING NAME:05008roodcross.dw Restored Wetland NEW HYDROLOGY SUPPLIED TO EFFECTIVELY-DRAINED CONDITIONS, FLOWING FROM ( ENHANCED WETLAND AREAS. PROPOSED RESTORED f 75% OF AREA: 61,139 SF WETLAND OR 1.40 AC BOUNDARY EXISTING OHW LINE X PROPOSED RESTORED WETLAND BOUNDARY Legend PIEZOMETER X II DIVERSION DITCH PHOTO POINT IWATER GAUGE O EXISTING WATER FLOW ' EXISTING BOUNDARIES PROPOSED WATER FLOW OF 'ENHANCED WETLAND DO NOT CHANGE ARTIFICIAL HYDROLOGY INPUT (RECLAIMED WATER) Enhanced ;Wetland \ \ y, ADDITIONAL HYDROLOGY \ k SUPPLIED TO EXISTING A . WETLAND. 100% OF AREA: 303,326 SF OR 6.96 AC EXISTING BOUNDARIES OF ENHANCED = - WETLAND DO NOT CHANGE - r~ Plan SCALE 1 REFERENCE #200501126 PURPOSE: Provide Pedestrian Access to Proposed Mitigation PROJECT DESCRIPTION: Fill Wetlands to Neighborhoods Provide Road and Utilities. Accomodate Compensation Plan Pedestrian Access with Boardwalks. IN: CITY OF YELM LOCATION: SEC. 24, T17N, RANGE 1E WM Tahoma Terra COUNTY OF: THURSTON, WA APPLICATION BY: Tahoma Terra LLC. SHEET 12 of 13 DATUM: NGVD 29 DATE: 10/17/05 DRAWING NAME: 05008miti ation.dw WETLANDS IMPACT TABLE AREAS AND VOLUMES WITHIN WETLAND BOUNDARIES Roads/Utilities Crossings Boardwalk Crossings PERMANENT TEMPORARY OVER WETLANDS TOTAL AREA 8,238 SF 2,035 SF 2,915 SF 13,188 SF (0.30 AC) VOLUME 1,913 CY 26 CY N/A 1,939 CY NOTES: 1. REFER TO SHEETS 5, 6, 7 & 8 FOR BOARDWALK SURFACE AREA QUANTITIES OVER WETLANDS. 2. REFER TO SHEET 9 FOR ROAD/UTILITIES VOLUME QUANTITIES. 3. REFER TO SHEETS 10 & 11 FOR HABITAT MIX VOLUME QUANTITIES IN ROAD CULVERTS. REFERENCE #200501126 PURPOSE: Provide Pedestrian Access to Wetlands Impact Table PROJECT DESCRIPTION: Fill Wetlands to Neighborhoods Provide Road and Utilities. Accomodate Pedestrian Access with Boardwalks. IN: CITY OF YELM Tahoma Terra COUNTY OF: THURSTON, WA LOCATION: SEC. 24, T17N, RANGE 1E WM APPLICATION BY: Tahoma Terra LLC. SHEET 13 of 13 DATUM: NGVD 29 DATE: 10/17/05 DRAWING NAME: 05008im act.dw TUE COOT ComPANY Wetland and Wildlife Consulting Services 416 S Washington Olympia, WA 95501 (360)352-9897 FAX (360) 352-9914 WETLAND MITIGATION PLAN FOR THE TAHOMA TERRA PROJECT SW 1/4, S24 T17N R1E City of Yelm SEPTEMBER 2005 prepared for: Tahoma Terra LLC 4200 Sixth Ave SE Ste 301 Lacey, WA 98503-1000 prepared by: \Net?ana~N+ s~ -L,.. ~ ?v l ric tom.-, i ~ ~~!Y t e `o tl Steve Shanewise, PWS 00099" Senior Ecologist wtla~» TahoAU05 inv CONTENTS Executive Summary ...............................................................1 Project Description .................................................................2 Figure 1: Wetland Impacts Figure 2: Proposed Mitigation Compensation Plan Figure 3: NWI Map Wetland Impacts ....................................................................3 Mitigation Approach ..............................................................5 Performance Standards ..........................................................5 Proposed Mitigation Site .......................................................6 Appendix I: Final Site Plans Construction ...........................................................................1 Vegetation ..............................................................................1 Habitat Features .....................................................................1 Monitoring .............................................................................2 Maintenance ...........................................................................2 Contingency ...........................................................................2 INTRODUCTION EXECUTIVE SUMMARY This project involves a large residential development in the City of Yelm. A new arterial roadway is required to connect two large upland areas on opposite sides of a linear wetland/stream system (Thompson Creek). Wetland impacts are unavoidable because the system extends across the entire property and well beyond in both directions, affording no possibility of avoidance. Total impact area is small (8,238 square feet; 0.19 acres), and impacts have been minimized by focusing the new road along the same alignment as an existing dirt road that currently crosses the wetland/stream system. Mitigation compensation for the impacts will derive from use of reclaimed water from the Yelm Sewage Treatment Plant to enhance one degraded wetland area and restore another effectively drained wetland area. Water flows will be directed into the enhancement area, where they will then continue along the native outfall route before being directed into the restoration area with a shallow ditch. Past agricultural drainage influences (ditching) have reduced the native water regime, and the supplemental water supply is intended to replenish the lost hydrology. The enhanced wetland area will total 303,326 square feet (6.96 acres), while the restored wetland area will total approximately 61,139 square feet (1.40 acres). A detailed Wetlands Inventory Report describing all project wetlands and the delineation methodology used is attached to the JARPA submittal for this project. TAHOMA TERRA WETLAND MITIGATION PLAN THE COOT COMPANY 1 PROJECT DESCRIPTION Project Name: Tahoma Terra Location: SW1/4 S24, T17N, R1E, Thurston County, City of Yelm Responsible Parties: Applicant: Tahoma Terra LLC, 4200 6th Avenue SE 9301, Lacey, WA 98503 Applicant's Agent: Steve Shanewise; The Coot Company; 416 Washington St. SE, Ste 202, Olympia, WA 98501; 360-352-9897; cootco e,ol. wY anet. Overall Project Description This project is a large residential development planned for the City of Yelm. It will involve the construction of approximately 1,000 dwelling units, including a mixture of single-family and multi-family conditions. One small area of commercial development will also be zoned to accommodate a gas station and convenience store needs of the new residents. Development will occur within two large upland areas that lie on either side of a ditched, linear, seasonal, Type 3 stream and wetland system (Thompson Creek). Access between the two large uplands will be achieved with a single arterial crossing of the wetland/stream system. All remaining areas of the wetland/stream system will be protected with buffers and enhanced through vegetation management and surface water augmentation using reclaimed water. The entire property was previously operated as a heavily grazed dairy farm. Wetland Delineation A full Wetlands Inventory Report describing wetland delineation and assessment is provided in a separate document submitted with this Mitigation Plan. In summary, primary wetland conditions that will be federally impacted occur along the Thompson Creek corridor which consists of a large, native wetland swale system with significant sheet flow conditions. However, the native flow was ditched decades ago into a straight, defined channel, probably to dry up areas of shallow marsh condition for "better" grazing. Effectively drained areas now occur, but a breach in the confining, side-cast banks of the level ditch has partially restored the "upper" portion of drained marsh to a technical wetland condition. Salmon use of the ditched channel, termed Thompson "Creek", is identified on 1975 Fisheries WRIA maps, but would seem questionable. The stream only has a limited seasonal connection to its Nisqually River outfall, going dry in spring of most years, and consists of either a Phalaris-choked and/or silt laden channel that would have no potential spawning habitat. All wetland areas, as well as all adjacent upland areas, have been heavily grazed for decades. TAHOMA TERRA WETLAND MITIGATION PLAN THE COOT COMPANY 2 1 r rr1 4i Boardwalk Crossing A i!I j~ _ - Boardwalk ? - i i' _ i _i i i I ! T 'x Crossing B~ r-- 0" ssf Road/Uti ties L--~ Crossin #1~ OMMUNITY 1 'r .PARK - r IiVETLAND, REClARGE~ _ x STREAM i; V ~ P CNib-----, !I `v SHELTER ' Boardwalk s, I "FUT PE" Crossing D,',," Boardwalk Crossing C 3~4E0 =SSG nv \ Site Plan SCALE: 1"=300' PURPOSE: Provide Pedestrian Access to PROJECT DESCRIPTION: Fill Wetlands to Neighborhoods Wetland Impact Areas Provide Road and Utilities. Accomodate Pedestrian Access with Boardwalks. IN: CITY OF YELM LOCATION: SEC. 24, T1-7N, RANGE 1E WM Tahoma Terra COUNTY OR THURSTON, WA APPLICATION BY. Tahoma Terra LLC. FIGURE 1 DATUM: NGVD 29 DRAWING NAME: 05008site.dwg DATE: 09/19/05 10 C _ A \v ii i _ - IT ;7 MIT T Wetland x 75% OF AREA: 61,139 SF OR ~I _ _ Li ; 1.40 AC _ x = '1Il JIM Legend', PIEZOMETER X I' I DIVERSION DITCH \ I PHOTO POINT \ , WATER GAUGE O W UTURE" DIV ° Enhanced 1~~ 4 Wetland 1007. OF AREA: 303,326 SF OR _ 6.96 AC = Plan SCALE: 1"=300 ' PURPOSE: Provide Pedestrian Access to PROJECT DESCRIPTION: Fill Wetlands to Neighborhoods Proposed Mitigation Provide Road and Utilities. Accomodate Compensation Plan Pedestrian Access with Boardwalks. IN: CITY OF YELM LOCATION: SEC. 24, T1-7N, RANGE 1E WM Tahoma Terra COUNTY OF: THURSTON, WA APPUCATION BY. Tahoma Terra LLC. FIGURE 2 DATUM: NGVD 29 DATE: 09/19/05 - DRAWING NAME: 05008siie.dwg PiiBFM F - :va R246x PEMC 44 _ <t 14 a .4 PEMC. PFNiC a1 r fl_ ml-=~? PEMC lp, s ~ • ..'k 4 J,i , • -F - 'PE1ViC ~ ~'G. pEmCX PEW p.w - P55C _ r`}PEMCPU$H 7• Vt~~`~`~ _ PEMC F , - PEMC SS PSSC',< w r Foy. 261, ` SSC PEMC % - _ CSSL SW1A S24 T1 7N R1E TAHOMA TERRA WETLAND MITIGATION PLAN NATIONAL WETLAND INVENTORY MAP N 1:24000 TAE COOT ~OMPAAd Weld W W Wllh BYhp FIGURE 3 WETLAND IMPACTS Two Impact Sources (Figure 1) This project will have one primary source of wetland impact plus one minor source. Fill impacts will be associated with a proposed linear road crossing. Additional, shading will occur from four, elevated pedestrian boardwalks. Detailed plan view and cross-sectioned drawings of all impact areas are provided within the attached JARPA application. Impact Totals Total wetland impacts for the proposed roadway crossing are 8,238 square feet of fill (0.19 acres); volume of fill will be 1,791 cubic yards. Total area of shading beneath the pedestrian walkways is 2,910 square feet (0.06 acres). Existing Water Regime The primary aspect of the water regime for the Thompson Creek system is the high variability between wet and dry conditions. This high variability is most likely due to the porous soils and fluctuation of the groundwater. When the water table is high, heavy precipitation can create a wide band of shallow, sheet-flowing water across the entire stream floodplain and beyond the technical wetland limits. However, if the rains stop, this condition can drain away within hours or a few days. Similarly, when winter water tables begin to drop in spring, wetland areas begin to dry out quickly, and experience much less fluctuation with heavy rain events. Downstream, off-property portions of the creek channel can be dry by March, and on-property shallow marsh areas start going dry in April and May. On-property portions of the ditched creek channel stay wet until early August, but then suddenly go dry within a week or less. To summarize, there's plenty of water in the winter, but habitats dry out too early in spring and summer, especially in the native wetlands that have been drained by the diverted Thompson Creek Channel. Existing Vegetation All wetland impact areas occur as heavily grazed shallow marsh habitats dominated by primarily non-persistent emergents. Polygynum, Sparganium and Eleocharis are the most abundant plants, with lesser quantities of water plantain (Alisma plantago aquatica) and curly dock (Rumex crispus). No woody species occur within the wetland impact areas, and only a narrow band of deciduous shrubs and trees along the ditch banks of the excavated Thompson Creek channel will be impacted by the proposed roadway. The pedestrian crossings of Thompson Creek will also impact a handful of deciduous shrubs within the ditch bank side-cast. Existing Soils All project wetlands that will be impacted occur within Spanaway soils, a deep, somewhat excessively drained series. All ground surfaces within this soil type have been compacted by heavy cattle grazing. TAHOMA TERRA WETLAND MITIGATION PLAN THE COOT COMPANY 3 Existing Wildlife Wildlife use of the wetlands is focused primarily on winter and early spring waterfowl. The abundance of seed-bearing food plants produces large quantities of feed that attract significant numbers of waterfowl. This waterfowl use is mostly focused within the marsh area outside of the proposed roadway fill. Other wildlife use of the habitats is limited due to the lack of persistent growing season surface water. Most shallow marsh animal species are not well adapted to systems that lose sufficient surface water by late spring. In addition, heavy past grazing of the entire landscape detracts from overall wildlife values. Fish use of the ditched creek channel is "seasonal", and any fish "trapped" within on-property portions that stay wet long after down stream portions have gone dry all die when on-property portions finally dry out in August. Wetland Functions Primary functions of the proposed wetland impact areas focus on water quantity and winter waterfowl use. Groundwater recharge is an especially important function for this site given the highly porous soils and the significant surface water inputs from non- porous, upstream wetland systems. Stormwater detention is also high because of the wide, flat floodplain associated with Thompson Creek that fills with water during wet periods. Flood attenuation is less important due to the extensive open grass areas devoid of woody vegetation. Winter and early spring waterfowl use of the wetlands is high, and this site should provide significant food resources to both wintering and migrating waterfowl. Wetland Rating All impacted wetlands qualify for Category II ratings (53 pts) under the 2004 WDOE methodology. TAHOMA TERRA WETLAND MITIGATION PLAN THE COOT COMPANY 4 MITIGATION APPROACH Avoidance Avoidance of wetland impacts from the proposed roadway crossing is not possible. The Thompson Creek system is a linear drainage route extending completely across this property from north to south. Crossing the system as some point is necessary to access hundreds of acres of buildable uplands on the other side. Reduction Reduction of proposed roadway wetland impacts has been applied by focusing the proposed new roadway crossing along an existing dirt road alignment with a fill/culvert creek crossing. Reduction of wetland impacts from the proposed boardwalk crossings has also been applied by locating some of these structures at existing or old crossing points. Compensation (Figure 2) Compensation for all wetland impacts from this project will involve both restoration of drained wetlands and enhancement of existing wetlands. Both compensations aspects will result from the same action of introducing reclaimed water into the wetlands. The additional surface water input will be directed into existing and drained marsh habitats to increase surface water persistence. The enhancement area will have additional water supplied to maintain shallow surface water through the breeding season, while the restoration area will have sufficient saturation restored to meet technical wetland hydrology requirements. The area of wetland enhancement will be 303,326 square feet (6.96 acres), while the area of restored wetland will be approximately 61,139 square feet (1.40 acres). Table: Goals and Objectives The goal of this wetland mitigation plan is to increase hydrology within existing, degraded wetlands and existing, drained wetlands. This objective will be met by maintaining a minimum of six inches of surface water over the enhanced area through July, and a minimum of soil saturation to the surface within the restored area through May. PERFORMANCE STANDARDS Hydrology Surface water depths within the enhanced wetland area will maintain a minimum depth of six inches between 1 December and 31 July. Depth measurements will be taken at a low point in the existing topography within the north half of the enhancement area. (Figure 2) Soil saturation to the surface within the restored wetland area will be maintained from 1 December through 31 May, or, persistent groundwater within twelve inches or less from the surface for this same time period. Piezometers will be placed at two evenly spaced locations within the restored wetland area to monitor groundwater conditions. (Figure 2) d i i TAHOMA TERRA WETLAND MITIGATION PLAN i THE COOT COMPANY 5 k k PROPOSED MITIGATION SITE Site Description A full description of both the restored and enhanced wetland areas is provided in a separate report (Wetlands Inventory for the Tahoma Terra Project. April 2005. The Coot Company) Ownership Both proposed wetland compensation sites are completely within the private property holdings of the overall development. Maintenance of the site in perpetuity will become part of the general landscaping needs of the entire development. A permanent staff will be retained to handle all landscaping needs. Rationale for Choice The proposed wetland mitigation compensation areas were chosen because they are adjacent to the proposed impacts areas, and contained within the same private property holdings. Furthermore, all that the compensation wetland areas lack is sufficient hydrology which can be readily supplied via reclaimed water that will be piped to this project. Finally, much of this supplemental water supplied to the wetlands will subsequently percolate into the landscape soils and help replenish local aquifers. Constraints There are no known constraints to the proposed mitigation compensation plan. The water source will come from reclaimed sewage water ("purple pipe water") that is useable for anything except drinking. A large pipe will be installed within the overall development project to provide for irrigation needs as well as wetland mitigation needs. Current potential flows of reclaimed water available for use average 280,000 gallons/day, and will increase as the proposed residential development is built. This water supply should be more than sufficient to meet the enhancement and restoration requirements. TAHOMA TERRA WETLAND MITIGATION PLAN THE COOT COMPANY 6 APPENDIX I - FINAL SITE PLANS TO WETLAND MITIGATION PLAN FOR THE TAHOMA TERRA PROJECT SEPTEMBER 2005 FINAL SITE PLANS CONSTRUCTION Water Management Supplemental water will be supplied to the wetlands through an artificial "spring" fountain that will discharge into a created stream channel that empties to the enhanced wetland system (Figure 1). This surface water will then flow along the existing outfall path, but will be diverted with a small ditch before it feeds back into the Thompson Creek ditch. This small diversion ditch will direct surface flows into an effectively drained wetland area that was created by the original Thompson Creek ditching. At the end of the proposed restoration, a second small ditch will be constructed to direct any excess surface flows into the Thompson Creek Channel and away from downstream properties. VEGETATION Planting Plans No direct plantings are proposed. The wetland enhancement areas is already vegetated with an array of native shallow marsh plants, it just needs more persistent surface water hydrology to maximize habitat functions and value. The proposed restoration area has remnant patches of shallow marsh plants that should develop rigorous growth with the new supplemental water. In addition, seed source input from the enhancement shallow marsh wetland should allow for recolonization of the drained areas. HABITAT FEATURES Swallow Nest Boxes An assortment of swallow nesting sites, including next boxes for tree and violet-green swallows, and covered shelves for barn swallows will be adapted into the landscape designs for the pedestrian crossings. FINAL SITE PLAN - TAHOMA TERRA MITIGATION I MONITORING Site Inspections Site inspections will be performed periodically during the spring and summer of each year following construction for three years. Monitoring inspections will entail assessment of plant health and vigor, measurement of water level gauges and taking of photographs at fixed points to show overall habitat characteristics at the enhancement and restoration wetland habitats. Because this compensation plan calls only for the introduction of supplemental water to enhance shallow marsh and restore wet meadow wetlands, three years of monitoring should be sufficient to establish success of the endeavor. Piezometers Two data-logger piezometers will be installed within the proposed restoration area to measure groundwater conditions from 1 March through 1 June of the first year following introduction of the supplemental water supply. Annual Report An annual report documenting the monitoring results will be prepared by 1 September of each monitoring year and made available to all agencies requesting the information. MAINTENANCE Woody Plant Control The intent of this wetland enhancement/restoration plan is to promote shallow marsh habitats without significant woody plant species. Past cattle grazing controlled the occurrence of shrubs and trees and kept them from growing in the drier portions of the existing wetland where enhancement and restoration activities are planned. However, in the absence of ungulate grazing, woody wetland species, especially willow, would slowly volunteer and take over the site and convert it from an emergent to a scrub-shrub condition. The proposed additional hydrology that will be introduced to the system may help to control some volunteering of shrubs, but manual maintenance may also be required to keep the habitat in a shallow marsh state. CONTINGENCY Water Regime If hydrology is insufficient to support the performance standards listed for shallow surface water and soil saturation within the enhanced and restored wetland areas respectively, artificial inputs of reclaimed water will be increased until the standards are met. FINAL SITE PLAN - TAHOMA TERRA MITIGATION 2 T E COOT C MANY Wetland and Wildlife Consulting Services 416 S Washington Olympia, V(A 98501 (360) 352-9897 FAX (360) 352-9914 19 September 2005 Washington State Department of Ecology 401 Water Quality Certification P.O. Box 47600 Olympia, WA 98504-7600 RE: 401 Permit, Tahoma Terra Project SW1/4 S24 T17N R1E City of Yelm Dear Sir/Madam: For the purpose of Ecology review of the above referenced project, we are providing 2004 Wetland Rating Forms for Wetland 1 and Wetland 2 identified in our Wetlands Inventory for the Tahoma Terra Project (April 2005). The 2004 rating is not provided for Wetlands 3, the isolated kettle or the off property wetland because these wetlands will not be affected by the proposed development. Sincerely, `\e~~ ©f Wetla~a~+ Steve Shanewise, PWS ``Q o'~~~i .r z ~2', t, y Senior Ecologist ~ry ~,1,y., Enclosures: Rating forms, Wetland 1 and Wetland 2 s v"'`fi~ \e~~` i DRAFT WETLAND RATING FORM - WESTERN WASHINGTON Name of wetland (if known): WC-7T L 44Q 0 ` l TP ~U M ; t, ~R r~ L-C-z Location: SEC: Zq TWNSHP:1 RNGE: (attach map with outline of wetland to rating form) -5 't "A4, Person(s) Rating Wetland: S. St-Mr'>Wisc Affiliation:JAe (,,,,T 6!!! ~ ate of site visif: z,Vs DRAFT SUMMARY OF RATING Category based on FUNCTIONS provided by wetland I II III IV Category I = Score >70 Score for Water Quality Functions 1 ~ Category II core 5 --6 Score for Hydrologic Functions I Category III = core - Score for Habitat Functions r Cateaorv IV = Score < 30 TOTAL score for functions S 3 Category based on SPECIAL CHARACTERISTICS of wetland I II Does not Apply( Final Category (choose the "highest" category from above) Check the appropriate type and class of wetland being rated. A'etland T . e Wetl"o Class Estuarine De ressional Natural Heritage Wetland Riverine Bo Lake-fringe Mature Forest Slope Old Growth Forest Flats Coastal Lagoon Freshwater Tidal Interdunal None of the above Wetland Rating Form - western Washington 1 August 2004 g-~w k as e - z_ ~L. RATER TAI ITT'IF UNCTIONS-; Ini atois;'tfiat; u~et~ancl fiut;~ti faiinprove - Q waf llah - er° R R 1. Does the wetland have the potential to improve water quality? (seep. 50) _ R R 1.1 Area of surface depressions within the riverine wetland that can trap sediments during a flooding event: Depressions cover >3/4 area of wetland points = 8 Depressions cover > 1/2 area of wetland points = 4 Depressions present but cover < 1/2 area of wetland omts = 2 No depressions resent omts = 0 R R 1.2 Characteristics of the vegetation in the wetland: Forest or shrub > 2/3 the area of the wetland points = 8 ` Forest or shrub > 1/3 area of the wetland oints = 6 6 Ungrazed, emergent plants > 213 area of wetland oints = 6 Ungrazed emergent plants > 1/3 area of wetland points = 3 Forest, shrub, and w1 grazed emergent < 1/3 area of wetland points = 0 R Add the points in the boxes above R R 2. Does the wetland have the opportunity to improve water quality? (seepL 53) Answer YES if you know or believe there are pollutants in groundwater or surface water coming into the wetland that would otherwise reduce water quality in str, lakes or groundwater downgradient from the wetland? Note which of the follo ing conditions provide the sources of pollutants. - Grazing in the wetland or within 150ft - Untreated stormwater discharges to wetland - Tilled fields or orchards within 150 feet of wetland - A stream or culvert discharges into wetland that drains developed areas, residential areas, farmed fields, roads, or clear-cut logging - Residential, urban areas, golf courses are within 150 ft of wetland. - The river or stream linked to the wetland has a contributing basin where human activities have raised levels of sediment, toxic compounds or nutrients in the river water above standards for water quality multiplier - Other Z YES multiplier is 2 NO multiplier is 1 R TOTAL - Water Quality Functions Multiply the score from R 1 by R 2 Add score to table on I L:j Comments Wetland Rating Form - western Washington 7 August 2004 -ti SAN `'~-zKy_3_c~".,vEy' e - _ _ _ v=St~iS~~.'~.~~~~=L-'~=~v_^c-"4~Mv-a`~'~~"•_.-'~'~~'kj - H_YDROI~QGIC;F(JNCTEONS ors" W an -dons ~floQaia.-;and stream _ oS ©n 1'ef _ R 3. Does the wetland have the potential to reduce flooding and erosion? (see 54) R R 3.1 Characteristics of the overbank storage the wetland provides: Estimate the average width of the wetland perpendicular to the direction of the flow and the width of the stream or river channel (distance between banks). Calculate the ratio: (width of wetland)/(width of stream). If the ratio is more than 20 points = 9 If the ratio is between 10 - 20 points = 6 If the ratio is 5- <10 points = 4 If the ratio is 1- <5 points = 2 If the ratio is < 1 points =1 R R 3.2 Characteristics of vegetation that slow down waxer velocities during floods: Treat large woody debris as 'forest or shrub Choose the points appropriate for the best description. Forest or shrub for >1/3 area OR Emergent plants > 2/3 area points = 7 Forest or shrub for > 1/10 area OR Emergent plants > 1/3 area p 4 Vegetation does not meet above criteria points = 0 R Add the points in the boxes above R R 4. Does the wetland have the ooyortunity to reduce flooding and erosion? (seep. 57) Answer YES if the wetland is in a location in the watershed where the flood storage, or reduction in water velocity, it provides helps protect downstream proper and aquatic resources from flooding or excessive and/or erosive flows. Note hich of the following conditions apply. V There are human structures and activities downstream (roads, buildings, bridges, farms) that can be damaged by flooding. - There are natural resources downstream (e.g. salmon redds) that can be multiplier damaged by flooding Z - Other (Answer NO if the major source of water to the wetland is controlled by a reservoir or the wetland is tidal fringe along the sides of a dike) YES multiplier is 2 NO multiplier is 1 R TOTAL - Hydrologic Functions Multiply the score from R 3 by R 4 ! Add score to table on p. 1 Comments Wetland Rating Form - western Washington 8 August 2004 - - H 1. Does the wetland have the potential to provide habitat for many species? _ H 1.1 Vegetation structure (seep. 72) Check the types of vegetation classes present (as defined by Cowardin) if the class covers more than 10% of the area of the wetland or acre. Aquatic bed mergent plants Scrub/shrub (areas where shrubs have >30% cover) Forested (areas where trees have >30% cover) Forested areas have 3 out of 5 strata (canopy, sub-canopy, shrubs, herbaceous, moss/ground-cover) Add the number of vegetation types that qualms. If you have: 4 types or more points = 4 Jtypes points = 2 p oints = l~ e points = 0 H 1.2. Hydropgriods (seep. 73) Check the types of water regimes (hydroperiods) present within the wetland. The water regime has to cover more than 10% of the wetland or I/4 acre to count. (see text for descriptions of hydroperiods) _/Permanently flooded or inundated 4 or more types present points = 3 seasonally flooded or inundated 3 types present oints = 2 Occasionally flooded or inundated 2 types present point = 1 Saturated only Permanently flowing stream or river in, or adjacent to, the wetland Seasonally flowing stream in, or adjacent to, the wetland Lake fringe wetland = 2 points Freshwater tidal wetland = 2 points H 1.3. Richness of Plant Species (seep. 75) Count the number of plant species in the wetland that cover at least 10 ft2. (different patches of the same species can be combined to meet the size threshold) You do not have to name the species. Do not include Eurasian Milfoil, reed canarygrass, purple loosestrife, Canadian Thistle If you counted: > 19 species points = 2 List species below if you want to: 5 - 19 species oints = < 5 species points = 0 Wetland Rating Form - western Washington 13 August 2004 H 1.4. Interspersion of habitats (seep. 76) Decided from the diagrams below whether interspersion between types of vegetation (described in H 1. 1), or vegetation types and unvegetated areas (can include open water or mudflats) is high, medium, low, or none. None = 0 points Low = 1 point Moderate = 2 point~~s saip ~ 1 [riparian braided channels] High = 3 points NOTE: If you have four or more vegetation types or three vegetation types and open water the rating is always "high". H 1.5. Special Habitat Features: (seep. 77) Check the habitat features that are present in the wetland. The number of checks is r the number of points you put into the next column. arge, downed, woody debris within the wetland (>4in. diameter and 6 ft long). tanding snags (diameter at the bottom > 4 inches) in the wetland Undercut banks are present for at least 6.6 ft (2m) and/or overhanging vegetation extends at least 3.3 ft (lm) over a stream for at least 33 ft (10m) Stable steep banks of fine material that might be used by beaver or muskrat for denning (>30degree slope) OR signs of recent beaver activity are present At least 1/4 acre of thin-stemmed persistent vegetation or woody branches are present in areas that are permanently or seasonally inundated- (structures for egg-laying by `amphibians) Invasive plants cover less than 25% of the wetland area in each stratum of plants JET 1. 'TO'TAL, Score - potential for providing habi*~at Add the scores in the column above Comments Wetland Rating Form - western Washington 14 August 2004 H 2. Does the wetland have the opportunity to provide habitat for many species? "P . H 2.1 Buffers (seep. 80) Choose the description that best represents condition of buffer of wetland. The highest scoring criterion that applies to the wetland is to be used in the rating. See text for definition of "undisturbed. " - 100 m (330ft) of relatively undisturbed vegetated areas, rocky areas, or open water >95% of circumference. No developed areas within undisturbed part of buffer. (relatively undisturbed also means no-grazing) Points = 5 - 100 m (330 ft) of relatively undisturbed vegetated areas, rocky areas, or open water > 50% circumference. Points = 4 - 50 in (170ft) of relatively undisturbed vegetated areas, rocky areas, or open water >95% circumference. Points = 4 - 100 in (33 Oft) of relatively undisturbed vegetated areas, rocky areas, or open water > 25% circumference, . Points = 3 - 50 in (170ft) of relatively undisturbed vegetated areas, rocky areas, or open water for > 50% circumference. Points = 3 If buffer does not meet any of the three criteria above - No paved areas (except paved trails) or buildings within 25 in (80ft) of wetland > 95% circumference. Light to moderate grazing, or lawns are OK. Points = 2 - No paved areas or buildings within 50m of wetland for >50% circumference. Light to moderate grazing, or lawns are OK. ints = - Heavy grazing in buffer. Points = - Vegetated buffers are <2m wide (6.6ft) for more than 95% of the circumference (e.g. tilled fields, paving, basalt bedrock extend to edge of wetland Points = 0. - Buffer does not meet any of the criteria above. Points =1 H 2.2 Corridors and Connections (seep. 81) H 2.2.1 Is the wetland part of a relatively undisturbed and unbroken vegetated corridor (either riparian or upland) that is at least 150 ft wide, has at least 30% cover of shrubs, forest or native undisturbed prairie, that connects to estuaries, other wetlands or undisturbed uplands that are at least 250 acres in size? (dams in riparian corridors, heavily used gravel roads, paved roads, are considered breaks in the corridor). YES = 4 points (go to H 2.3) NO = go to H 2.2.2 H 2.2.2 Is the wetland part of a relatively undisturbed and unbroken vegetated corridor (either riparian or upland) that is at least 50ft wide, has at least 30% cover of shrubs or forest, and connects to estuaries, other wetlands or undisturbed uplands that are at least 25 acres in size? OR a Lake-fringe wetland, if it does not have an undisturbed corrir as in the question above? YES 2 points o to H 2.3) NO = H 2.2.3 H 2.2.3 Is the wetla within 5 mi (8km) of a brackish or salt water estuary OR within 3 mi of a large field or pasture (>40 acres) OR within 1 mi of a lake greater than 20 acres? YES = 1 point NO = 0 points Wetland Rating Form - westem Washington 15 August 2004 H 2.3 Near or adjacent to other priority habitats listed by WDFW (seep. 82) 7 ich of the following priority habitats are within 33Oft (100m) of the wetland? ee text for a more detailed description of these priority habitats) ~tiparian: The area adjacent to aquatic systems with flowing water that contains ements of both aquatic and terrestrial ecosystems which mutually influence each other. Aspen Stands: Pure or mixed stands of aspen greater than 0.8 ha (2 acres). Cliffs: Greater than 7.6 in (25 ft) high and occurring below 5000 ft. Old-growth forests: (Old-growth west of Cascade crest) Stands of at least 2 tree species, forming a multi-layered canopy with occasional small openings; with at least 20 trees/ha (8 trees/acre) > 81 cm (32 in) dbh or > 200 years of age. Mature forests: Stands with average diameters exceeding 53 cm (21 in) dbh; crown cover may be less that 100%; crown cover may be less that 100%; decay, decadence, numbers of snags, and quantity of large downed material is generally less than that found in old-growth; 80 - 200 years old west of the Cascade crest. Prairies: Relatively undisturbed areas (as indicated by dominance of native plants) where grasses and/or fortis form the natural climax plant community. Talus: Homogenous areas of rock rubble ranging in average size 0.15 - 2.0 in (0.5 - 6.5 ft), composed of basalt, andesite, and/or sedimentary rock, including riprap slides and mine tailings. May be associated with cliffs. -4aves: A naturally occurring cavity, recess, void, or system of interconnected J passages Oregon white Oak: Woodlands Stands of pure oak or oak/conifer associations where canopy coverage of the oak component of the stand is 25%_ Urban Natural Open Space: A priority species resides within or is adjacent to the open space and uses it for breeding and/or regular feeding; and/or the open space functions as a corridor connecting other priority habitats, especially those that would otherwise be isolated; and/or the open space is an isolated remnant of natural habitat larger than 4 ha (10 acres) and is surrounded by urban development. Estuary/Estuary-like: Deepwater tidal habitats and adjacent tidal wetlands, usually semi-enclosed by land but with open, partly obstructed or sporadic access to the open ocean, and in which ocean water is at least occasionally diluted by freshwater runoff from the land. The salinity may be periodically increased above that of the open ocean by evaporation. Along some low-energy coastlines there is appreciable dilution of sea water. Estuarine habitat extends upstream and landward to where ocean-derived salts measure less than 0.5% during the period of average annual low flow. Includes both estuaries and lagoons. Marine/Estuarine Shorelines: Shorelines include the intertidal and subtidal zones of beaches, and may also include the backshore and adjacent components of the terrestrial landscape (e.g., cliffs, snags, mature trees, dunes, meadows) that are important to shoreline associated fish and wildlife and that contribute to shoreline function (e.g., sand/rock/log recruitment, nutrient contribution, erosion control). If wetland has 3 or more priority habitats = 4 points If wetland has 2 priority habitats = 3 points If wetland has 1 priority habitat =1 point No habitats = 0 points Wetland Rating Form - western Washington 16 August 2004 H 2.4 Wetland Landscape (choose the one description of the landscape around the wetland that best fits) (seep. 84) There are at least 3 other wetlands within %2 mile, and the connections between them are relatively undisturbed (light grazing between wetlands OK, as is lake shore with some boating, but connections should NOT be bisected by paved roads, fill, fields, or other development. points = 5 The wetland is Lake-fringe on a lake with little disturbance and there are 3 other lake- fringe wetlands within 1/2 mile points = 5 There are at least 3 other wetlands within 1/2 mile, BUT the connections be m are disturbed points The wetland is Lake-fringe on a lake with disturbance and there are 3 oth - fringe wetland within 1/2 mile points = 3 There is at least 1 wetland within 1/2 mile. points = 2 There are no wetlands within 1/2 mile. points = 0 H 2. TOTAL Score - opportunity for providing habitat Add the scores in the column above Total Score for Habitat Functions - add the points for H 1, H 2 and record the result on Wetland Rating Form -western Washington 17 August 2004 DRAFT WETLAND RATING FORM - WESTERN WASHINGTON Name of wetland (if known): IJ ETO)NO Z - ( A rky yk s tf ~ P A-v ]kE7C-T- Location: SEC: Z TWNSHP: 17 RNGE: 1 6- (attach map with outline of wetland to rating form) S per, `n0 G- Person(s) Rating Wetland: S. YH,4+le Affiliation. ?he Oaf 6-,d-^-, Date of site visit:z-,o5 DRAFT SUMMARY OF RATING Category based on FUNCTIONS provided by wetland I II X III IV Score for Water Quality Functions 2 Category I =Score >70 Category II = Score 51-69 Score for Hydrologic Functions Category III = Score 30-50 Score for Habitat Functions 17 Cate2orv IV = Score < 30 TOTAL score for functions 5.3 Category based on SPECIAL CHARACTERISTICS of wetland I II Does not Applyx Final CategOry (choose the "highest" category from above) ! f Check the appropriate type and class of wetland being rated. ~ ~~Tctlancl Tv ,c _ wetland Class Estuarine De ressional Natural Heritage Wetland Riverine Bo Lake-fringe Mature Forest Slope Old Growth Forest Flats Coastal Lagoon Freshwater Tidal Interdunal None of the above Wetland Rating Form - western Washington 1 August 2004 "~.-.ac • ,^+.,w.-,~' r mom, `~-:3?' ..;.?SY+~.'""e`~p 3t"„+ v=`"""uv "arm.-^ -ry=e "'r ~.s--ar-~,-<.,~va`~',`y z-l-:~~~'~,E".~^~_~'+' ~--.x",.'4v,~`;~"a~~~~~.,c~ '~.`;,~'i: ...s-+- -a~:_..~.~...F.,. .-Y::.~-:e.~-x 1.:.:.~~r.-x -cw-sa -+--..-.rt...,~...__ :-s..,~.~=~ %'v.aw"«.~ .:~ax~.~~"t-y -•rx"-."'.. ~ r ~M H 1. Does the wetland have the potential to provide habitat for many species? H 1.1 Vegetation structure (seep. 72) Check the types of vegetation classes present (as defined by Cowardin) if the class covers more than 10% of the area of the wetland or acre. Aquatic bed E_ mergent plants crab/shrub (areas where shrubs have >30% cover) :~J ,J Forested (areas where trees have >30% cover) Forested areas have 3 out of 5 strata (canopy, sub-canopy, shrubs, herbaceous, Z moss/ground-cover) Add the number of vegetation types that qualms. If you have: 4; types or more points = 4 points = 2 types points = 1 1 type points = 0 H 1.2. Hydroperiods (seep. 73) Check the types of water regimes (hydroperiods) present within the wetland. The water regime has to cover more than 10% of the wetland or acre to count. (see text for descriptions of hydroperiods) /Permanently flooded or inundated 4 or more types present points = 3 Seasonally flooded or inundated 3 types present points = 2 Occasionally flooded or inundated 2 types present point = 1 Saturated only Permanently flowing stream or river in, or adjacent to, the wetland Seasonally flowing stream in, or adjacent to, the wetland Lake-fringe wetland = 2 points Freshwater tidal wetland = 2 points H 1.3. Richness of Plant Species (seep. 75) Count the number of plant species in the wetland that cover at least 10 ftz. (different patches of the same species can be combined to meet the size threshold) You do not have to name the species. Do not include Eurasian Milfoil, reed canarygrass, purple loosestrife, Canadian Thistle If you counted: > 19 species points = 2 List species below if you want to: 5 - 19 species points =_5 < 5 species points = 0 Wetland Rating Form - western Washington 13 August 2004 H 1.4. Interspersion of habitats (seep. 76) Decided from the diagrams below whether interspersion between types of vegetation (described in H 1. 1), or vegetation types and unvegetated areas (can include open water or mudflats) is high, medium, low, or none. None = 0 points Low = 1 point Moderate = 2 point [riparian braided channels] High = 3 points NOTE: If you have four or more vegetation types or three vegetation types and open water the rating is always "high". H 1.5. Special Habitat Features: (seep. 77) heck the habitat features that are present in the wetland. The number of checks is the number ofpoints you put into the next column. arge, downed, woody debris within the wetland (>4in. diameter and 6 ft long). Standing snags (diameter at the bottom > 4 inches) in the wetland Undercut banks are present for at least 6.6 ft (2m) and/or overhanging vegetation extends at least 3.3 ft (1m) over a stream for at least 33 ft (10m) Stable steep banks of fine material that might be used by beaver or muskrat for f denning (>30degree slope) OR signs of recent beaver activity are present _/Alt least'/4 acre of thin-stemmed persistent vegetation or woody branches are present in areas that are permanently or seasonally inundated (structures for egg-laying by / amphibians) y Invasive plants cover less than 25% of the wetland area in each stratum of plants H 1. T'O'TAL Score - potential for providing habitat Add the scores in the column above Comments Wetland Rating Form - western Washington 14 August 2004 H 2. Does the wetland have the opportunity to provide habitat for many species?= H 2.1 Buffers (seep. 80) Choose the description that best represents condition of buffer of wetland. The highest scoring criterion that applies to the wetland is to be used in the rating. See text for definition of "undisturbed. " - 100 m (330ft) of relatively undisturbed vegetated areas, rocky areas, or open water >95% of circumference. No developed areas within undisturbed part of buffer. (relatively undisturbed also means no-grazing) Points = 5 - 100 m (330 ft) of relatively undisturbed vegetated areas, rocky areas, or open water > 50% circumference. Points = 4 - 50 m (170ft) of relatively undisturbed vegetated areas, rocky areas, or open water >95% circumference. Points = 4 - 100 in (33 Oft) of relatively undisturbed vegetated areas, rocky areas, or open water > 25% circumference,. Points = 3 - 50 m (170ft) of relatively undisturbed vegetated areas, rocky areas, or open water for > 50% circumference. Points = 3 If buffer does not meet any of the three criteria above - No paved areas (except paved trails) or buildings within 25 m (80ft) of wetland > 95% circumference. Light to moderate grazing, or lawns are OK. Points = 2 - No paved areas or buildings within 50m of wetland for >50% circumference. Light to moderate grazing, or lawns are OK. Points = 2 - Heavy grazing in buffer. Points =1 - Vegetated buffers are <2m wide (6.6ft) for more than 95% of the circum erence (e.g. tilled fields, paving, basalt bedrock extend to edge of wetland Points = 0. - Buffer does not meet any of the criteria above. Points =1 H 2.2 Corridors and Connections (seep. 81) H 2.2.1 Is the wetland part of a relatively undisturbed and unbroken vegetated corridor (either riparian or upland) that is at least 150 ft wide, has at least 30% cover of shrubs, forest or native undisturbed prairie, that connects to estuaries, other wetlands or undisturbed uplands that are at least 250 acres in size? (dams in riparian corridors, heavily used gravel roads, paved roads, are considered breaks in the corridor). YES = 4 points (go to H 2.3) NO = go to H 2.2.2 H 2.2.2 Is the wetland part of a relatively undisturbed and unbroken vegetated corridor (either riparian or upland) that is at least 50ft wide, has at least 30% cover of shrubs or forest, and connects to estuaries, other wetlands or undisturbed uplands that are at least 25 acres in size? OR a Lake-fringe wetland, if it does not have an undisturbed corridor as in the question above? YES= 2 points (go to H 2.3) NO = H 2.2.3 H 2.2.3 Is the wetland: within 5 mi (8km) of a brackish or salt water estuary OR within 3 mi of a large field or pasture (>40 acres) OR within 1 mi of ter than 20 acres? YES = 1 point NO = 0 points Wetland Rating Form - western Washington 15 August 2004 H 2.3 Near or adjacent to other priority habitats listed by WDFW (seep. 82) W/hich of the following priority habitats are within 33 Oft (100m) of the wetland? ee text for a more detailed description of these priority habitats) Riparian: The area adjacent to aquatic systems with flowing water that contains e, ments of both aquatic and terrestrial ecosystems which mutually influence each other. Aspen Stands: Pure or mixed stands of aspen greater than 0.8 ha (2 acres). Cliffs: Greater than 7.6 in (25 ft) high and occurring below 5000 ft. Old-growth forests: (Old-growth west of Cascade crest) Stands of at least 2 tree species, forming a multi-layered canopy with occasional small openings; with at least 20 trees/ha (8 trees/acre) > 81 cm (32 in) dbh or > 200 years of age. Mature forests: Stands with average diameters exceeding 53 cm (21 in) dbh; crown cover may be less that 100%; crown cover may be less that 100%; decay, decadence, numbers of snags, and quantity of large downed material is generally less than that found in old-growth; 80 - 200 years old west of the Cascade crest. Prairies: Relatively undisturbed areas (as indicated by dominance of native plants) where grasses and/or forbs form the natural climax plant community. Talus: Homogenous areas of rock rubble ranging in average size 0.15 - 2.0 in (0.5 - 6.5 ft), composed of basalt, andesite, and/or sedimentary rock, including riprap slides and mine tailings. May be associated with cliffs. Caves: A naturally occurring cavity, recess, void, or system of interconnected passages Oregon white Oak: Woodlands Stands of pure oak or oak/conifer associations where canopy coverage of the oak component of the stand is 25%. Urban Natural Open Space: A priority species resides within or is adjacent to the open space and uses it for breeding and/or regular feeding; and/or the open space functions as a corridor connecting other priority habitats, especially those that would otherwise be isolated; and/or the open space is an isolated remnant of natural habitat larger than 4 ha (10 acres) and is surrounded by urban development. Estuary/Estuary-like: Deepwater tidal habitats and adjacent tidal wetlands, usually semi-enclosed by land but with open, partly obstructed or sporadic access to the open ocean, and in which ocean water is at least occasionally diluted by freshwater runoff from the land. The salinity may be periodically increased above that of the open ocean by evaporation. Along some low-energy coastlines there is appreciable dilution of sea water. Estuarine habitat extends upstream and landward to where ocean-derived salts measure less than 0.5% during the period of average annual low flow. Includes both estuaries and lagoons. Marine/Estuarine Shorelines: Shorelines include the intertidal and subtidal zones of beaches, and may also include the backshore and adjacent components of the terrestrial landscape (e.g., cliffs, snags, mature trees, dunes, meadows) that are important to shoreline associated fish and wildlife and that contribute to shoreline function (e.g., sand/rock/log recruitment, nutrient contribution, erosion control). If wetland has 3 or more priority habitats = 4 points If wetland has 2 priority habitats = 3 points If wetland has 1 priority habitat =1 _point No habitats = 0 points Wetland Rating Form -western Washington 16 August 2004 H 2.4 Wetland Landscgpe (choose the one description of the landscape around the wetland that best fits) (seep. 84) There are at least 3 other wetlands within %Z mile, and the connections between them are relatively undisturbed (light grazing between wetlands OK, as is lake shore with some boating, but connections should NOT be bisected by paved roads, fill, fields, or other development. points = 5 The wetland is Lake-fringe on a lake with little disturbance and there are 3 other lake- fringe wetlands within %2 mile points = 5 There are at least 3 other wetlands within %2 mile, BUT the connections be> are disturbed omts - The wetland is Lake-fringe on a lake with disturbance and there are 3 other lake- fringe wetland within '/z mile points = 3 There is at least 1 wetland within '/2 mile. points = 2 There are no wetlands within '/z mile. points = 0 H 2. TOTAL Score - opportunity for providing habitat Add the scores in the column above Total Score for Habitat Functions - add the points for H 1, H 2 and record the result on f~ 1 j Wetland Rating Form - western Washington 17 August 2004 e , D D 1. Does the wetland have the potential to improve water quality? (see p. 38)=M: - D 1.1 Characteristics of surface water flows out of the wetland: D Wetland is a depression with no surface water outlet points = 3 Wetland has an intermittently flowing, or highly constricted, outlet oints 2 Z Wetland has an unconstricted surface outlet points = 1 Wetland is flat and has no obvious outlet and/or outlet is a ditch points = 1 D 1.2 The soil 2 inches below the surface is clay, organic, or smells anoxic D (hydrogen sulfide or rotten eggs). YES points = 4 NO lnts = 0 D 1.3 Characteristics of persistent vegetation (emergent, shrub, and/or forest class): D Wetland has persistent, ungrazed, vegetation > = 95% of area points = 5 Wetland has persistent, ungrazed, vegetation > = 112 of area points = 3 !1 Wetland has persistent, ungrazed vegetation > = 1/10 of area points = 1 U Wetland has persistent, un azed vegetation <1/10 of area Lints D1.4 Characteristics of seasonal ponding or inundation. D This is the area of the wetland that is ponded for at least 2 months, but dries out sometime during the year. Do not count the area that is permanently ponded. Estimate area as the average condition S out of 10 yrs. Y Area seasonally ponded is > %z total area of wetland points 4 / Area seasonally ponded is > '/4 total area of wetland porn s = 2 Area seasonally ponded is < %4 total area of wetland points = 0 NOTE: See text or indicators ofseasonal and _permanent inundation.. D Total for D 1 Add the points in the boxes above p D D 2. Does the wetland Lave the opportunity to improve water quality? (seep. 44) Answer YES if you know or believe there are pollutants in groundwater or surface water coming into the wetland that would otherwise reduce water quality in stream y, lakes or groundwater downgradient from the wetland? Note which of the folVoing conditions provide the sources of pollutants. Grazing in the wetland or within 150 ft - Untreated stormwater discharges to wetland - Tilled fields or orchards within 150 ft of wetland - A stream or culvert discharges into wetland that drains developed areas, residential areas, farmed fields, roads, or clear-cut logging - Residential, urban areas, golf courses are within 150 ft of wetland multiplier - Wetland is fed by groundwater high in phosphorus or nitrogen - Other YES multiplier is 2 NO multiplier is 1 D TOTAL - Water Quality Functions Multiply the score from Dl by D2 Add score to table on . 1 Wetland Rating Form - western Washington 5 August 2004 e 3P A;; D 3. Does the wetland have the potential to reduce flooding and erosion? ~ ~s«~ ~ D D 3.1 Characteristics of surface water wso ut of the wetland Wetland has no surface water outlet points = 4 Wetland has an intermittently flowing, or highly constricted, outlet o' = 2 Z Wetland is flat and has no obvious outlet and/or outlet is a small ditch points = 1 Wetland has an unconstricted surface outlet points = 0 D D 3.2 Depth of storage during wet periods Estimate the height of ponding above the bottom of the outlet Marks of ponding are 3 ft or more above the surface points = 7 The wetland is a "headwater" wetland" points = 5 Marks of ponding between 2 ft to < 3 ft from surface points = 5 Marks are at least 0.5 ft to < 2 ft from surface points = Wetland is flat but has small depressions on the surface that trap water points = 1 Marks of ondin less than 0.5 ft points = 0 D D 3.3 Contribution of wetland to storage in the watershed Estimate the ratio of the area of upstream basin contributing surface water to the wetland to the area of the wetland itself. The area of the basin is less than 10 times the area of wetland o'mI 5 3 The area of the basin is 10 to 100 times the area of the wetland oints = 3 The area of the basin is more than 100 times the area of the wetland points = 0 Wetland is in the FLATS class basin = the wetland, b definition points = 5 D Total for D 3 Add the points in the boxes above D D 4. Does the wetland have the opportunity to reduce flooding and erosion? (seep. 49) Answer YES if the wetland is in a location in the watershed where the flood storage, or reduction in water velocity, it provides helps protect downstream property and aquatic resources from flooding or excessive and/or erosive flows. Answer NO if the water coming into the wetland is controlled by a structure such as flood gate, tide gate, flap valve, reservoir etc. OR you estimate that more than 90% o the water in the wetland is from groundwater. Note hich of the following indicators of opportunity apply. - Wetland is in a headwater of a river or stream that has flooding problems - Wetland drains to a river or stream that has flooding problems multiplier - Wetland has no outlet and impounds surface runoff water that might otherwise flow into a river or stream that has flooding problems L - Other YES multiplier is 2 NO multiplier is 1 D TOTAL - Hydrologic Functions Multiply the score from D 3 by D 4 Add score to table on p. 1 Wetland Rating Form - western Washington 6 August 2004