rffili©~DI@~@) rtB b r 20\Z

K,C. D.O.E.S .

. DOWNSTREAM ANALYSIS for

TALL CHIEF COUNTRY CLUB RESIDENTIAL PLAT PROJECT

Location: 1313 W. SNOQUALMIE RIVER ROAD

FALL CITY, WA · 98024

DECE1\1BER 23, 2004 Revised March 22, 2007

By

Hagenson Consultants, LLC Seattle, Washington 98136

HC Job No. 200422

K.C Project# L04P0032

VII. APPENDIX

OFF -SITE ANALYSIS (DOWNSTREAM DRAINAGE ANALYSIS)

A review of the County' s Storm and Surface Water Comprehensive Plan shows that the study area lies within the both the Patterson Creek basin and the Snoqualmie River Basin.

Patterson Creek Basin Drainage from the on site hillside is carried in onsite gullies to the valley floor at several locations spaced along the hillside toe. There, it is concentrated in the slough (wetland A) and is thought to flow towards Patterson Creek, some 600 to 800 feet east of the SE property comer. Paterson Creek, in turn, joins the Snoqualmie River within 1000 feet northeast ofthis point.

While K.C. published basin limits support this conclusion, Country Club personnel and locals with many years of experience in the area, report that Patterson Creek floods often over bank and send water northward through wetlanq A onto the Country Club. Floodplain delineations show that this area is within the limits of the common floodplain for both Paterson Creek and the Snoqualmie River. While this condition may exist during high flow events, the preponderance of lower flows may tend to drain toward Patterson Creek, partly due to it's very close proximity to the SE comer of the Site. Nonetheless, arguments may be made that the County basin delineation is suspect, and all of the site flows are generally discharged towards the Snoqualmie basin, to the north and east.

Visual reconnaissance of the downstream system revealed no visible indications of scour, flooding, overtopping, or sedimentation, although frequent flooding normally brings some silt deposition. A review of the County's I-map system and project wetland delineations indicated Wetland A to be a large, Class I wetland, partially onsite and partially offsite. Drainage complaints collected for the project do not indicate any complaints relevant to Patterson Creek.

Snoqualmie River

Drainage from the project and portions of the upstream/o:ffsite hillside are collected in the Country Club golf course wetlands C, D and F. Club personnel report that old mapping indicates these wetlands are connected by a named creek. Geomorphologically, the hillside/valley relationship is likely created by local seismic faults, and this ancient creek bed followed the hillside toe, much the same as it does today.

A series of small channels and a 36" cmp culvert connect these onsite wetlands and discharge runoff to the north, in a channel which had historically been dredged and maintained, but which has recently been neglected. This channel runs due north through the abutting slough for some 1700' to a point where it crosses under the Main St. E. Bridge.

Visual reconnaissance of the downstream system revealed no visible indications of scour, flooding, overtopping, but local deposition of silts and sediment is causing the ditch to aggrade (fill in). A review of the County's I-map system and project wetland delineations indicated Wetland to the north of the site to be a large, Class I wetland. Drainage complaints collected for the project are included in this report in synopsis form. Many of the collected complaints deal with conditions on the opposite (right) bank.

Upstream drainage is currently directed in a sheet flow fashion through heavily wooded and moderately steep terrain toward the valley floor. In several locations, this drainage has concentrated onsite and has created gullies with evidence of sour and/or erosion.

A developed plat exists west of the westerly boundary of the project. However, it lies west of the ridge, such that the plat's drainage is in a separate basin from that of the project.

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Task 1 (2005 KCSWM Pg 2-10) Study Area Definition and Maps

The study area extends from approximately 500 feet upstream to 1/3 mile downstream from the site as shown on the included mapping. A parcel report and map are included as well as Imap topography, Imap drainage complaint mapping, Imap Sensitive Areas Mapping, Imap Hydrographic Information mapping, and appropriate legends.

Task 2 Resource Review Basin Plans- A check of DNR web publishing lists indicates there is no Snoqualamie River nor Patterson Creek Basin Plan. Drainage Studies- The South Fork Snoqualamie River Feasibility Report was pre­empted prior to completion and studied flooding remedies in the North Bend area. Basin Reconnaisance Summary Reports- The Patterson Creek Basin Reconnaisance Report describes land use, geology and stream habitat . There are no apparent project specific relevant findings. Critical Drainage Areas -Imap, FEMA and project specific surveys indicate that portions of the site lie within the Snoqualamie 100 year floodplain FEMA maps -A review of FEMA mapping indicates the site lies within the 1 00 year floodplain. Other Offsite Analysis Reports- A check with DDES Records Staff indicates there are none for this area Sensitive Areas Folio - Imap Sensitive Area Mapping is included herewith and there are floodplains, wetlands, steep slope/Landslide hazards, and aquifer recharge areas noted within the study area

King County: Utstncts and Development Conditions Keport

l.QKing County~_.. •-t411BH ; Comments

PARCEL REPORT Districts and Development Conditions for Parcel number: 0524079002

BY LAW THIS INFORMATION MAY NOT BE USED FOR COMMERCIAL PURPOSES.

Administrative Districts and Areas Address 1313 WEST SNOQUALMIE RIVER RD SE

Jurisdiction King County

Zipcode 98024

Council District:3 King County Council District Council Member: Kathy Lambert

(COUNCIL IN TRANSITION) Phone: (206) 296-1003 Web site

School District Snoqualmie Valley #410

Fire District King County Fire Protection District No. 27

Water District None

Sewer District None

Water and Sewer District None

Water Service Planning Area Fall City Water District

Tribal Lands No

PI annm g f D es1gna 1ons RA-10 (split zoning, check a map to verify)

King County Zoning A-35 (split zoning, check a map to verify) RA-5-SO

Comprehensive Plan Land Use rr

Urban Growth Area Rural

Community Planning Area Snoqualmie

Unincorporated Area Council None

P-Suffix Conditions None

Kroll Map Page 835

Thomas Guide Map Page 599

Agricultural Production District No

Forest Production District No

Roads MPS Zone 143

http://www5.metrokc.gov/reports/dd_report.asp?PIN=0524079002

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3/22/2007

King County: Districts and Development Conditions Report .Page 2 ot 3

Transportation Concurrency Zone 1360

Environmental Areas Snoqualmie River

Drainage Basin and Patterson Creek

Rural Clearing Limits Apply Yes (Verify that the RA-* Zoning is valid)

Snoqualmie River Watershed Name and

Snoqualmie River

Snohomish WRIAName and

Snohomish

7 WRIA Number and

7

10 = 53828 Rating = 4 (NWI)

Wetland 10 = 53848 Rating = 4 (NWI)

10 = 5339 Rating= 2

100-Year Flood Plain Yes

Coal Mine Hazards None mapped

Erosion Hazards Yes

Landslide Hazards Yes

Seismic Hazards Yes

Critical Aquifer Recharge Area Class 2

DOES Permitting Information Assessor Property Characteristics Report

Zoom to Parcel - iMAP (High Speed Internet Connection} Zoom to Parcel - Parcel Viewer {All Internet Connections}

The Information included on this report has been compiled by King County staff from a variety of sources and is subject to change without notice. King County makes no representations or warranties, express or implied, as to accuracy, completeness, timeliness, or rights to the use of such information. King County shall not be liable for any general, special, indirect, incidental, or consequential damages including, but not limited to, lost revenues or lost profits resulting from the use or misuse of the information contained on this report. Any sale of this report or information on this report is prohibited except by written permission of King County.

This report was generated: 3/22/2007 3:59:22 PM

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!The information included on this map has been compiled by King County staff from a variety of sources and is subject to change without notice. !King County makes no representations or warranties, express or Implied, as to accuracy, completeness, timeliness, or rights to the use of such nformation. King County shall not be liable for any general, special, indirect, inciden1al, or consequential damages including, but not limited to, ost revenues or lost profits resulting from the use or misuse of the information contained on this map. Any sale of this map or information on his map is prohibited except by written permission of King County.

King County I GIS Center I News I Services I Comments I Search By visiting this and other KJng County web pages, you expressly agree to be bound by terms and conditions of the site . .IhlLd~i!§,

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DNRP Drainage Complaints and Studies- A listing of all drainage complaints within the area was received from DDES Records Staff and included herewith. Specific complaints were obtained based on their proximity to and/or location within the study area, as well as their specific dates (note complaints older than 10 years are not included per footnote, page 2-11 ). A summary table is included below:

Complaint Address Problem Description Resolution No. 1997-1254 2412 Neal Rd (not in groject sub-basin) Water N/A

Quality issue not pertinent 1998-0259 1530 W Sno- Water Quality Issue- not pertinent "

qualamie Rd 2003-0820 SE 24m Manure discharge to Creek Permitted Manure

Lagoon overflowed In rain event

MAK.tL.'LUU I L:UHM 1\lN\l (;U. WL KU NU. 4U'Lo r. 1

King Cotmty Water and Land Resources CWLR) Division

. 201 S Jackson St, Suite 600 Seattle, ~J\ 9~104-3855

FAX To: tJ.d./ J-4A.~

;:n:c:-m=~

Date:

Number-of pages including cover sheet: ---

From: Cindy Torkelson WLR Stonnwater Services Section Phone:206-29~1900

Fax Number: 206-296-0192

IMPORTANT LEVEL .. t ANALYSIS NOTE: We do not send copies of certaln complaint types that are not relevant such as BCW, FI, FIR Fill and WQA, and we do not send CL and LS types. See key below. Type Sl, S2 and 83 will not be faxed due to size constraints.

TI1e following is a list of complaint types received by the Water and Land Resources Storm. water Services Section. Complaint numbers beginning prior to 1990-XXXX have been archived and a,re. no longer in our possession. They can still be retrieved, if necessary, but will take additional time and may not be beneficial to your. research due to their age, develbpment which has occurred, etc. If you are interested in reviewing the actual complaints, they can be pulled (time pennitting) for your review. Copies can be obtmned for$ . . 15 per page, and $2.00 per page for plans. Keys:

Tme of Investigation c Action Request 'SCW B\iSiPW' for Clem Watet CCF Response to 'Inquiry •CL Claim EH E11furcement on Hold ER. Enforccmt.nt Review PCC,FCR.PCS F•cility Complaints FT SWM Pee Inquiry PIR SWM Fee Review fJH SWM Pee on Hold •LS Lawsun AA Facility EngiroetMg hview !'IDA Neighborhood Drainage ~istll!te WQC W~tuQuslity Complairit WQE Water ~lity EnforQC:lll&llt WQR. Wa11:r Quality Ens\nccring R.evi~w WQA Wab:.t Quality Audit WQO WatuQuality-Othe:-S I ,S2,SN3 Engineering Studies

l'ype ofl'roblem DCA DDM DES OLE DTA INQ MMA MMP MMG MMM MNM MN'W s~ WQB · WQ.O··· ' WQI REM

CiRT NWD

Ocvdopm~n1Construction Drainat;c • Miscellaneous Drainage- E~rion/Sedimentalion Dramage- I..audsUdel&nh MIIVcment Orninpge Technical A,sistancc Drainnge- Oe!l~:rtl Inquiry Malnb:n~nce - Ae.~thetic:s j\i.,m~~<nancc - Plooding Maintenance - General Maintx:nance- Mawi1Ji M11intenancc- Needs Maintenance Maintenance-Noxious Wcecll SWM Fee Questlons Water Quality- Best M1111agetncnl Practices Wattr Quality - Dumping WA!" Qlllllity- Olicit Corrnccrton SWM Fee -!Umensurement

SWM Pee-Grant SWM Pc~New Disco,rnr

*Subject to Public Disclosure requimnl!llls I . R!ceipt of written request for documents 2. Revitw and approval by Prosecming AUOrney's office

K\.. WU<J.J

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"* 1975-0230 c . . FLO

' ~ 197~231 c RIP-RAP

·¥· 1975-0232 c EROSION

-* 1977-0108 c FLOG

,¥1978-<1115 c :.,{1981-0281 c ORNG

~1989-0014 c ORNG

)1(1989..0014 ER DRNG

~1997-1 254 WQR WQA

;1998-0259 WQC CREEK

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2220

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1931

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31529

31529

2412

1530

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NEALRDSE II

NEAL RD SE 11

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40TH ST

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599C1

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FIREWOOD & TOP SOIL IN FLO PLAIN

'(OFF RIW) SYSTEM SILTED

SYSTEM NEEDS SCREEN(OFF RMI).

A~h~GED DISCHARGE OF MANURE INTO

...

Pag11 of 1

599C1

599C1

599C1

S99C1

59902

599C1

599C2

, NIAK. U. LVVI L:VJnll ~liV Il l.V. YI LKU KING COUNTY w AT.€R AND LAND RESOURCES DMSIC~~· q u L D r. f~

DRAINAGE INVESTIGATION REPORT riPe~ ·

OK'd b : FR-ENo. 2003

City ______ State. __ Zip __ _

LOCATION OF PROBLEM. If DIFFORENT: t; a6 .3/fiyf, ~£ ~ t- Oh sc J.t('r1 g I Access Permission Granted 0 Call First (Would Like To Be Present) 0

'\\~q\ h11 ~ .h ~~- co1Rvt, ~ ~v.,~~~~~

Plat name: Lot No: Block No:

Parc:l No.{J'/J,t{ 07'!0/ J Kroll IJfJJ5 Th.Bros: New .. 5J 7C2 •

DJSPosrnoN: Turned to_ on I I by OR: No further action recommended bectt.Use:

_J!.teada.gencyhasbeennotified: /J~II 9-r~~ ¢ ~~!Cof.-n/~ . . .. _ Problem has beeu corrected. _ No problem has been Identified. __ Prior mvestigation'addresses problem:·

SI:E FILE# ---_ Private problem - NDAP will not consider because:

Water originates ons~'te and/or on n ighboring par~I. __ Other (Specify):

DATE CLOSED; I I It I 0 f- By:

;(fi}t"D]) () ~

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lnitiaJ Report ERTS # 537413 Extsmal Remeneo I - · .. ...... __________ , ., ~- · .. ... ---------Callor Information

~irst

• Nome Cindy

BuslnesG Name Eoology NWRO

Addre55 <125-649·7059

Oth!lr Address

City, State. Zip

E·m,il

~rnaiRef. ft.

Middle

WA

Phone Ext Type

Last Callahan

Conndanrial 0

Wh!rp did it happen ·

Bu5iness or Loe11iion: Small Farm

Address SE 24th St

Other Adclre66

City. State, Zip ~All crTY

County, Region KING

Vv'RIA#

\Mate:way Parrarsan Cleek

lalitll(je

Tapa Quad 1:24,000 FALL CrTY

Olrr:ctlon$Jl;ndmarks

R.t!porl#:

WA

N'NRO FS ID

Type longitude

57494

j(206) 949-rns· · ------,M'"'"o...,.b.,..ile ____ :J---, (mile post, ~ss roads •. ~~~.s~lll_ta_niJ_e..;.) ____ ~-------.,.----, River mile 31.2 • Located where the cn!alc croases se 24th St.

What Happehl!d lnc;idenl Date 11/1712003

• Ree9ived Date 1111712003 Time

Medium SURFACE WATER-FRESH

Material UNKNOWN

Quantity Unit

Sour~11 F'ARM/AGRICUL nJRE Caus11 OTHER

Activity UNKNOWN Impact POTENTIAL POLLUTION/RELEASE

Vessol Name Type

Addijional Contact lnformatlon

Name Phone

Morolnfo

Ptimm Potentially Ruponslble Part(

Type

Name

Business Name Adaress

Olh11r Add1'9SG

Clly Phone

Ext

E-mail

First Miadle

Type

US1

Zl~

- c;;iler ;;p~rt~d a7ix inch pipe crossing the creek. Call&t suspeciS th01t man t i~ ti_eing ptin'lpe~ thro119h pipe and could be a J obstruction in creek. I ha-.!e notified Bob Pflafel'ofWDFW(~25-379~09) b~) __ . _ _ ~--·~··· -------------

Mon.dll)', NlJvtmber 17, 2Q05

Entry Pan;on: STEGMAN, GREG Enlry Dale:

••• The llliu.l n:port colltlins only iu.fonnali.on provided tQ l!cQ)ogy from tl\<1

compl~in:un.

1111712003

Pagelu/.2

MAK. rL . l.UUI L:Ul~M K!Nii t;V. VILKV

KING COUNTY

DRAINAGE INVESTIGATION RE:p()RT FJELD INVJi:STIGATION

NAME: ADDRESS: DOE-ERTS PHONE: (42S) 649-7059 & Cdl: (206) .. DATE OF INVESTIGATION: 11~25-03 & 12-INVESTIGATED BY: Virgil Pacampara

I went to the site on 11124/03 to investigate AD illicit discharge at East of30911 Patterson Cteek. That tile CAller suspects_ manure is being pmnped through the pipe. The description of the first location seems does IIDt matched w/ the instroc!ion. I spoke with Cindy Callahan about the complaint. She lW some concern: I) that they injected tb.cmanurr: at rainy season (11117/03) which is not potential. 2) That heovy o>tann occurred~ the following day (ll/l8103). The manure ma.y have bcCll washed-oat to Pattersan Creek impacting the Salman beui.ng creek. 3) That they need to have ~ pe:mit (hydnruli.c permit) when using mechwism of injecting manure as per State Fish&. Wddlife regulations. Tilat they use .flexible pipe attached to 1raGtor out in field and pump to his troctor. It appears that the pipe that 'N8.S been Ulied fur injecting manure was been removed~ during the investigation. The group of Callahan has c:onducted water sn:mple at Patterson !=J."eek and result appetu"S negative at the lower creek. I reviiited the site on 12/22(03. I~ able to locate the property and residence ofMr. Steve Kcllec. 1 used the photogr&phs (St:).d hy Miss Callahan) 11$

reference dnring the ~visit I spoke to Mr. & Mrs. Keller regarding the oomplaint on elicit disehmged and other concerns of:Miss Callahan. The Keller told me that they are conducting the xnnnare injection fntd other falm activities per regulations. They refuacd me to Rob Ryan (K~C Conservation District). Iie is th.e contlct person for dec:isian & managcmnt of the nutrients/ installing manure. Mr. Ryan added that it is usually month3 of spring (or mnnuxe Application IUid, added that it -was unusual for the Kcller to inject during rainy seascm. h appears that they may bave hired CQJ1lra.cW to do the injec;tiQilll of manure last 11/17/03. Mr. Neil Lanning ofWS Dept. of Agricultlre haa infonned me that Mr. Rob Ryan c:ontaaed him reguding the Keller complaint. Per our phone conversation (wl Lmmin&), he told me that 1hey sent-out a letlet to different Conservation Districts &nd to WA State Dairy F~emions about the injections ofmaJillfe .md, it appears that The Keller did not know the letter (send-oat hy WSDA). See copy ofletter on ,file of this complaint :,. ..

Flexible pipe used for in~ manure.

Grassy area

H

NTS

SE 24m Street

( l

MA~. '/.2 . '2 UU/ i : UJ~M KI N\i CU. WL KV

STAT.E OF WASHINGTON

DEPARTMENT OF AGRICULTURE P.O. Box 42560 • OJympi~ Washington 9850~660 • (360) 902.1800

October 27, 2003

TO:

FROM:

Debbie Becker, Western Washington Conservation Districts Ron Shavlik, Western Washington NRCS Offices

Nora Mena, Manager Livestock Nutrient Management Program

SUBJECT: Lagoons

With the recent record rainfalls many lagoons have captured unusually large amounts of precipitation for this time of year. We understand that there may be some facilities that anticipate that they will not have enough capacity remaining to hold manure and normaJ precipitation until next spring when applications would normally start up again.

If remaiDing lagoon capacity is not adequate to avoid over flowing before spring, dairy operators will need to reduce the stored quantities in a manner that avoids any discharge to surface or ground water. One method is ·to make additional field applications when the chance~ of runoff is the lowest possible, rather than being put in a position afhaving to pump during a rain storm in January or February. In working with operators who are concerned over their capacity, we offer the following considerations: '

1) Wait until the ground is not saturated and there is only a low chance of significant rainfall that could cause runoff.

2) Increa~e buffers between application areas and surface waters or ditches to reduce potential fur runoff.

3) Apply at low rates -two light applications to the same ground would be better than one heavy application.

4) Pick fields that are well drained, out of flood prone areas and have a crop, such as grass, in place.

5) Soil temperatures below 50 degrees are preferred, particularly in sensitive groundwater areas

6) Target Nov 15 as the last day for field applications. 7) Operators should notify the District or NRCS staff prior to application

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In working with operators, the Conservation Dlstrict operators on these issues:

I) How much needs to be pumped, 2) Appropriate application rates, 3) Fields identified for application, 4) Adequate buffers from ditches, streams, wetlands, etc., 5) Acceptable days for pumping, and 6) Other site specific requirements that may appropriate.

It will helpful for WSDA staff to be aware of such activity, particularly if we receive complaints about late season applications. Consequently, we would appreciate being notified when these additional applications take-place and by whom Please contact Neil Lanning with a short message stating the dairy name, dairy operators name, and application dates. He can be reached at, nlanning@asr.wa.gov, or at ~60-902-2052.

Our conclusions are (1) Continued maintenance of the major culvert and bridge crossings are important to prevent future flooding. (2) Both the Paterson Creek and Snoquahnie Basins are representative of alluvial valley streams, exhibiting characteristics of both aggradation (in flatter areas such as meadows and ponds) and degradation (in steeper gullies and ravines). The normal geomorphology in this environment creates some areas of stream bank erosions, and some areas of localized pending and flooding. Meeting the storm water flow control and water quality code requirements by directly discharging to the Snoqualamie River before peak flood conditions arise from upstream sources can effectively mitigate impacts from proposed developments.

An offsite Analysis Drainage System Table (98 KCSWM ref 8-B) is included as well as a photo album and photo legend.

Tall Chief Downstream Analysis Photo Index

Photo # Orientation 1 sw

2 SE 3 N 4 NW 5 s 6 NW 7 N 8 NE 9 NE 10 E 11 NE 12 E 13 s 14 sw 15 w 16 NW 17 N 18 E 19 N 20 N 21 s 22 N 23 s

Description SE comer from 15th Tee 18" cmp & ditch along S. Prop Line Offsite gully SE of 15th Green Erosion on west face of Gully Erosion on West face of Gully Typical fairway on back 9 holes, undulating topography Wetland B gully north of 17th Tee Wetland B gully north of 17th Tee Wetland B gully north of 17th Tee Panorama 500' S of Clubhouse Panorama 500' S of Clubhouse Panorama 200' S of Clubhouse Panorama 200' S of Clubhouse Panorama from Snoq. River Road near Wetland A " " " 36" CMP into Wetland F under access road Wetland E outlet into braided slough ditch @ N prop line Slough ditch 200' N of site Slough ditch 600' North of site Bridge crossing @ slougli ditch & E Main St 1700' N of site " Slough from Snoq. River Road near E Main St.

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