Loading...
HomeMy WebLinkAboutPacket Water Work Session Oct 17 2023Whatcom County Council Water Work Session COUNTY COURTHOUSE 311 Grand Avenue, Ste #105 Bellingham, WA 98225-4038 (360) 778-5010 Meeting Agenda Tuesday, October 17, 2023 10:30 AM Civic Center Building Conference Room / Hybrid Meeting HYBRID MEETING - (PARTICIPATE IN -PERSON, SEE REMOTE JOIN INSTRUCTIONS AT www.whatcomcounty.us/joinvirtualcouncil, OR CALL 360.778.5010) COUNCILMEMBERS Barry Buchanan Tyler Byrd Todd Donovan Ben Elenbaas Carol Frazey Kaylee Galloway Kathy Kershner CLERK OF THE COUNCIL Dana Brown -Davis, C.M.C. Council Water Work Session Meeting Agenda October 17, 2023 Call To Order Roll Call Announcements Individuals who require special assistance to participate in the Council's meetings are asked to contact the Council Office at 360.778.5010 at least 96 hours in advance. This committee meeting is also noticed as a meeting of the Whatcom County Council, with the agenda limited to committee business. Meeting Materials AB2023-492 Meeting Materials for the Water Work Session October 17, 2023 Birch Point Sub -Watershed Drainage Study, Birch Bay Village MOU, BBWARM Rate Study Watershed Viewer WRIA 1 Planning Unit update Other Business Adiournment Whatcom County Page 2 Printed on 411512025 • Whatcom County COUNTY COURTHOUSE 311 Grand Avenue, Ste #105 Bellingham, WA 98225-4038 (360)778-5010 • Agenda Bill Master Report File Number: AB2023-492 File ID: AB2023-492 Version: 1 Status: Received File Created: 07/21/2023 Entered by: Department: File Type: Receipt of Document(s) Assigned to: Council Water Work Session Final Action: 10/17/2023 Agenda Date: 10/17/2023 Enactment #: Primary Contact Email: kfelbing@co.whatcom.wa.us TITLE FOR AGENDA ITEM: Meeting Materials for the Water Work Session October 17, 2023 SUMMARY STATEMENT OR LEGAL NOTICE LANGUAGE: None HISTORY OF LEGISLATIVE FILE Date: Acting Body: Action: Sent To: 10/17/2023 Council Water Work Session RECEIVED Attachments: Agenda and Packet for 10.17.2023, Faulstich Presentation, Whatcom County Watershed Portal Whatcom County Page 1 Printed on 4/15/2025 WHATCOM COUNTY PUBLIC WORKS DEPARTMENT ELIZABETH KOSA Director MEMORANDUM NATURAL RESOURCES 322 N. Commercial Street, Suite 110 Bellingham, WA 98225 Telephone: (360) 778-6230 FAX: (360) 778-6231 www. whatcomcounty. us TO: The Honorable Satpal Singh Sidhu, Whatcom County Executive, and Honorable Members of the Whatcom County Council THROUGH: Elizabeth Kosa, Director FROM: Gary S. Stoyka, Natural Resources Program Manager DATE: October 10, 2023 RE: October 17, 2023 Council Water Work Session Please refer to the proposed agenda below for the next Water Work Session. Additional supporting documents may be distributed at or before the meeting. AGENDA Date: Tuesday, October 17, 2023 Time: 10:30 a.m. to 11:30 a.m. Place: Hybrid Meeting: In Person: Civic Center Garden Level Conference Room (322 N. Commercial St., Street Level) Virtual: For instructions on how to watch or participate in this meeting, please visit us at www.whatcomcounty.us/ioinvirtualcouncil or contact the Council Office at 360.778.5010. View meeting schedules, agendas, minutes, videos, and archives at www.whatcom.legistar.com. Time Topic Council Action Background Information Requested Attached 10:30 AM — Birch Point Sub -Watershed Drainage Study, Informational None 11:00 AM Birch Bay Village MOU, BBWARM Rate Study 11:00 AM — Watershed Viewer Informational None 11:15 AM 11:15 AM — WRIA 1 Planning Unit update Informational None 11:30 AM If you have questions, please feel free to call me at (360) 778-6218. cc: Dana Brown -Davis Erika Douglas Cathy Craver Kristi Felbinger John Thompson Doug Ranney Jill Nixon Paula Harris Melissa Donnelly Jennifer Schneider Kraig Olason Roland Middleton Karen Frakes Chris Elder Erin Page Josh Fleischmann Mark Personius Tyler Schroeder Sue Sullivan Brandy Reed Bennett Knox Rirrh R: a 1 0 t HATCUM CC &TER WORK October 17, 2023 9 9 Agenda BBWARM Background/Overview Birch Point Subwatershed Drainage Study Results BBWARM Funding Analysis and Rate Study Memorandum of Understanding (MOU) between Whatcom County and Birch Bay Village Community Club BBWARM Purpose Decrease stormwater impacts (localized flooding/drainage/erosion) Protect and improve water quality and aquatic habitat Overview Community Involvement Community -initiated effort and flooding begins 1999 o Response to State listing Bii 2003 Milestones 2001 - Birch Bay Steering Committee 2004 - Birch Bay Community Plan developed * 2006 - Comprehensive Stormwater Plan completed 0 2007 - BBWARM District (flood subzone) established 0 2008 - Advisory Committee & Funding Resolution adopted 0 2009 - Fees collected, staff hired & work plan developed r 2010 - Full program development & implementation H. STREET RD. BLAINE r 1' # Z e H, E H.STREET RD, SW D w Drayton LU Harbor H YNIE RD, z o , r'' CAR D, VAADGE RD. NE ¢ BADGER RD, 4 � � o NDEN _r C' _/" HAti+ProN RD Y - LYD AY - LYN N R —� } � . m / w w �.- Birch Bay o w � LU GR NDVr " RD. / a E. POLE D, w W.POLE D. / EE z w 1r o Y Z3 a c� �o FERN DA = VIE i z W. AXT AX, ON Rp, ` BBWARM District J Fresh Water z W. SMITH D. SMITH RD. E. SMITH RD, a w Roads 4 X SLAT R RD z � Parks Q I w City Limits ( _ Cf w AN,/YCK RD. 3 BBWARM DistrictI'` C BEyLLINGHAM 0.5 1 2 r`°°''°°�s OMiles Whatcom County Public Works ° February 2010 �;;�:, Core Program Arerq& Mw ❑ Capital Improvement Projects Maintenance &Small Works ❑ Habitat Improvement ❑ Education &Outreach ❑ Water Quality Monitoring Capital Improvement Projects Getting stormwater to the bay without causing problems BBWARM Capital Improvement Projects Charel Cottonwood Cottonwood Terrace Neighborhood Seaview Drive Drive Stormwater Drainage Drainage Stormwater Improvements Improvements Upgrades Improvements $270,000 $468,000 $190,000 $85,000 2011 2013 2015 2017 2012 2014 2016 Hogan Drive & Beachway Birch Point Semiahmoo Drive and Collaborative Drive Upgrades Fern/Park Drainage $20,000 Stormwater System Repair Improvements $244,000 $521,000 Birch Bay Harborview Drive & Pt. Rd & Birch Whitehorn Rd Bay Drive Cottonwood Stormwater Stormwater Drive Stormwater Improvements Improvements Inlet Final Repair $1,050,000 $855,500 $99,430 2019 2021 2023 2018 North Cottonwood Neighborhood Stormwater Improvements $350,000 2020 Birch Bay Drive & Pedestrian Facility (Berm) Contribution $250,000 2022 Emergency Repairs of Charel Terrace and Cottonwood Inlet $60,000 *Construction contract cost only Maintenance & Small Works M o Maximize function of existing public stormwater systems f Address small-scale chronic maintenance and repair projects Provide inspection reports for private stormwater system owners ►. - N - k , Ax -T C� C� J Catch Basin Replacements STo Ira { sa ROPERw rt; NO.TptiE9�f7's7i.. `'�~�_',�..�L _ -.y� r,�� _ +• c`�j�" v �. ,. y ti 5" v .ti i �✓f .� a r f � - r 11r 11 11 Enhancing oving impr • r T r NA r 72 _ r,A - F f 4-1 �� Jy41 _ � • •.. �: �'. �- :--ram ..:.-- BIRCH BAY GARDEN!=-. rooarorew. ^�� .1M NEIGHBORHOOD NATIV m�i LANDSCAPING PROJEC The Neighborhood Native Landscaping Project (NNLP) Is free program that invites hwneowners to convert existing lawns and landscaping into native plant landscaping. Native landscaping offers a beautiful, low-maintenanceyard, protects water quality, and improves habitat Participants will receive free mulch, native piants, and assista nee to plan and permit their project. We are now looking torecrukgroups -of interested neighbors Iivinginthe Birch Bay watershed. Ifyou are interested in participating, fill out the online interest form and sharethelink with your neighbors: hftly,BrrchDayNNLP l7_ 4C 14 BBWARNI (360)778-62301WhaicomCourtlyPublkWorks Sfon waferDwsroa 2022 Participants (5): Birch Bay Village Bay View neighborhood 8,585 sq. ft. 2023 Participants (9): Baycrest neighborhood Halverson Park area 14,421 sq. ft. - TOTAL: 23,006 sq. ft. https:://www.bbwarm.whatcomcounty.org/get-involved/neighborhood-native-landscaping Education & Outreach M& ❑ BBWARM's education and outreach programs seek to increase public awareness of stormwater problems and promote voluntary actions that help protect water quality, aquatic habitat, and stormwater systems. Newsletters © BBWARM VBirch Bay Watershed and Aquatic Resources Management District Birch Bay Watershed & Aquatic Resources Management District October2023 Quarterly Newsletter with Birch Bay Watershed Updates Eileen and Alan are Stewards of Birch Bay! HARMFUL ALGAL BLOOMS L Mane you nah"daho bloomsin Birch Bay. Teneg Creep. w Lake Sewell?Kwn, Ealgpl blooms IHABs1 are o eergrvwlhs of afW :n cooler, Some podilce dangerous lam on hest: or mane water that can sicken or kti people and animals. but even nantm:c - dooms hurt the emcc,nmenf and local «omnies. Health effects range been mid skin rash to serene Ohm or, in rare crcumstances, death. taeosue can am horn inhakng - otswagawsrgconiam:ilatM wMM.v:hakng aebarne dfnplen that COnLaon toxins of from '- eaong n.nated fish or shellfish that Seed m the toioc phyteplankton. halls can be green blue. red or broeat. They coon be scummy p look Me paml on the Harvesting water. Redhdes, biueLgeen algae. and cyanobaclepa are harmhu"Vi Noans that can shellfish? Know sneregimpacl humanheallh aquatic ecosystems, and the economy.Totorm. HABs before you dig! need sunl0t shay morongwalm.and nutrients. iluNeni poElutwn fiom hunan Tbes Always chec4tM makes the pmbkm worse.Wotg to morevere bo seoms occur more that occotters You can 'Aash�ngtm Stale help by pit kin .0 font waste, wash in your reticles al acar wasta manapng yard waste, Depantmenl of health schedugdgmute: aeseptis system irttpechon. and".gferbkier spangly shelll:sh safely Information map al kyoid die water and deep pen and ii wock away d you see an algal Noon, You can yae,-wa.tow dooi report algalbboms to Whatcam Canty Heats and Communty setvrces at 13W 778 arot—loinrann.Mmltor Health DeWrimeni staff mil work mth Rie current status of you to detownim the neat stays. shenbsh ha—ST'ne :n W,nh:ngton. V44• t Bah tiglegtlad alM Agnat¢ Q UWARMMai77162310 L I Annual BBWARM newsletter is ❑ E-newsletter is sent to 560+ subscribers mailed to all rate payers (~5,600) Reports & PublicIntic V- STEWARDS -- ..-4 OF BIRCH BAY!L New. Homeowner Information - -IV BIRCH Y ft HEU & A{IUATV a RESOURCE 5`MANAGEMENT IS I .R, Outreach Events II 1 1,000+ Ibs of trash removed July 5th 4RRmFu ALGAL BLOO iNFe sEssir Wv Amb:. AM - 11 th Annual Run with the Chums - record turnout! Outreach Campaigns Help protect our water. Manage your grass clippings. Iscri (%.W, 1A0 whatcomcounty.us/scooppoop Water Quality Monitoring Mok o Assess current fecal coliform bacteria levels and trends o Identify priority areas for WQ treatment and outreach o Keep shellfish growing areas open for recreational harvest low Whatcom County Public Works Terrell Water Quality Monitoring Stations �- i coln F�: + o _ Loo is Trail Rd. I a Li 8618 r = BB19 6622' of Anderson R m dfeS r•BB11 _ `o 6B21� 1 BB20 BB8 ch L 6615 12 aB7 \ BB / 13136 1 Bitch Bay Lynden Rd. U B65 CBI BRY - ey BB4 B133 Creas Rd �- r Birch Bay — �-- TerO.1 _ �� Tf1iJTBrLP1 Ter0.1` Arnie Rd. Arnie Rd. Arson Rd. a STribTerBC2 of �TribTerBC1 z Ter0.7 R v Ter1.6 Bay Rd. w Bay Rd. 3 N A0 0.5 1 Mile I I I I l l l l Legend • Birch Bay Freshwater Stations • Terrell Freshwater Stations Terrell Creek Terrell Watershed Birch Bay Watershed Gr ndview Rd_ ` ifs O ARCO r Y L m a �Idergrove """ Fox Rd. Ter6.9 somas TribFin0 w Ter7.8 Brown Rd. a m � Ter.&A i ` Alder rove Rd. .0 O Z TribFERNi Lonseth Rd- 0 O Henry Rd. L ` I Te � Thorn Rd. — Map Healed by Wh-- Cw11V Nbk Works, Natwal Reewroee staff. December 21, K15. More info at: bbwarm.whatcomcounty Birch Point Drainage Study 11 • i �_ rr .�I WIA L 1� La PLY h',.. D D 'AWF "i'f Birch Point Subwatershed Drainage Study MR ❑ Identified as a Special Study Area in the girch Bay Birch Bay Subwatershed Master Plans Central North Subwatershed Master Plan ❑ Purpose of the Study: o Improve resolution of drainage system models and further define existing flow characteristics Birch Point, Terrell Creek JTrban Area, and Point W hitehorn Subwatershed Master Plan o Evaluate November 2021 flood and impacts from climate change o Evaluate impacts of future development on flood levels in the study area lk o Develop solutions to resolving flooding �r°w PR4rP problems *More detailed presentation tomorrow night by Tetra Tech! Study Area Located on the north side of Birch Bay within City of Blaine and Whatcom Co. Approximately 1,650 acres Currently a mix of rural and residential land use Study area divided into four "subareas" LIJ V4hatcom County Rogers Slough ' Semiahmoo Uplands and Birch _ Bay Village eikcv cutir eo L Birch Bay Village and Bay Ridge Estate/s X N Miles 0 0.25 0.5 BIRCH BAY Drainage Modeling Refine and update existing computer models Compute volume of stormwater runoff from land surface Compute depth of water and flow rate in system to identify flooding areas Analyzed 100-yea r storm, November 2021 storm, and a climate change scenario DRAYTON HARBOR I S bca«nment I Open Channel = Pipe ® Overland Flow I I i � I I i� I ROGERS SLOUGH- UPPER TRIB IN SUBWXTERSHED SHINTAFFER SUBWATERSHED SEMIAHMOO IjI UPLANDS I If SUB WATERSHED, . /BIRCH BAY VILLAGE SUBWATERR5 HED 7J I BIRCH SAY Miles 0 0.5 1 Land Use — Existing Conditions • Residential housing covers approximately 40% of the subwatershed area currently • Remaining area is undeveloped or rural land use Land Use — Future Conditions DRAYTON HARBOR f i ! LnWa r" r i ROGERS i SHINTAFFER a SLOUGH SUBAREA SUBAREA — --- wcoLx ao SEMIAHMOO UPLANUS AND BIRCH BAY • VILLAGE SUBAREA M - eiar.N no'rvr 4o s' ��spn n5 BIR - B Y V LLAGE� ! g� -ES S,SUBA REA V� "�• P, Y a'J - _ -qo•" MProjeot Subarea Fully Built-oct Lend Zoning - Residential Planned Recreation 3 lotslaom (Bl aln e) - _ General Commercial N Neighborhootl Commercial lRCH BAY Rural Residential5 acre lots Feet I Urban Resldendal4lo[slacre 0 000 2,000 U t— Residendal Medium Oensdy 5 Uldacre 0 • Residential housing will cover approximately 75% of the area in the future • Impervious area will increase with future development Impervious Area Conversion Existing Land Use Condition DRAYTON HARBOR � I I I I � , I I j I 14% IMP. I � ROGERS SLOUGH 8%IMP. 14% IMP. SUBAREA SHINTAFFER SUBAREA SEMIAHMOO UPLANDS AND BIRCH BAY VILLAGE SUBAREA p AdI N N ABIRCH BAY lw lwlw Future Land Use Condition �- DRAYTON HARBOR BIRCH BAY Change in Impervious Area 200 Serniahrnoo Uplands and 18o Birch Bay Village 160 Subarea 140 L � � 120 o U L # 100 CL v '5 80 L Q 9 60 40 20 0 Existing Future m m Birch Bay Village and Bay Ridge Estates Subarea Rogers Slough Subarea Portion of future impervious area in City of Blaine Existing Future Existing Future ■ Unincorporated W hatcom County ■ City of Blaine Shintaffer Subarea m Existing Future 1200 +:;-_, 1000 aj 800 E 4 7 o 600 2y 0 Change in Runoff Volume I Semiahmoo Uplands and Birch Bay Village Subarea at Birch Paint Road M Birch Bay Village and Bay Ridge Estates 5u ba rea at Birch Point Road Rogers Slough Subarea at Birch Bay Drive Total increase in i Future runoff contribution from City of Blaine Existing Future Existing Future Existing Future ■ Unincorporated Whatcom County ■ City of slaine 1 acre-foot = 1 foot of flooding over 1 acre of land (43,560 cubic feet or 326,000 gallons) Shintaffer Subarea at Birch Bay Drive Existing Future Existing & Futur e Conditions Comparison 'a� HORIZON 1 00-year Storm , BAY'RI.DC;'- � ie�i ef 'SAt k �' ,;�' BIRCH BAY•VlLL'AGE Lake, Stormwater Detention Facihly + a# Rt� BIRCH BAY � Open Channel k � • � .. � yam, f � Rpeh Estimated Flood Inundation ,� �;. ' �' N Existing Conditions t �r ry • ., '� .� `� � Feet Future Conditions y °y "` " 600 Ift Existing & Future Conditions Comparison November 2021 Storm aaYrRi.DcE ; r ' .ESTATES y. -41 -fir. - ': ''~r¢ • ��f � kit - •ram R 15AC-ZH ja J„,IRCH SAY UI�LAGE Z • v • Lake ��.-.-..• .-� - . /�V r..,..rs Stormwater Detention Faritily ■ �° ;. ,�ti Open Channel 1P P S` , — Pipe Estimated Flood Inundation . f+'. ' Existing Conditions Future Conditions 81RCH BAY N Feet 600 Existing & Future Conditions Comparison M Existing & Future Conditions Comparison BIRCH P�1N� Ro November 2021 Storm HORIZON F RICHMOND PARK So what can we do about it? F- Stormwater Detention Facility Open Channel = Pipe Estimated Flood Inundation Existing Conditions Future Conditions a; ,9-h P MAIXDiPubai Meeting OT42523 RPPOo dingv3.—d BIRCH BAY Feet 0 400 a- W Proposed Drainage Improvement Projects Developed five projects to resolve flooding Two projects sized to convey future flows Project costs ranged from $77Ok to $2.85M each Includes construction, engineering and administration, permitting, and construction management Does not include land or easement acquisition Proposed Drainage Improvement Projects Existing Open Channel = Existing Pipe Proposed Improvements BIRCH BAYNI VIEW lIJ1 HORIZON Bay Ridge Estates Stormwater _ Richmond Park Stormwater . Improvements Project Improvements Project IL� BAY RIDGE ESTATES RICHMO PARK Rogers Slough Drainage Improvements Project/ 7: Beaver Creek Drainage � IT — Improvements Project Birch Bay Village Stormwater Improvements Project m x BIRCH BAY",111 - m N BIRCH BAY Feet 0 400 800 .- .xc—t Path SaT45233 0,r h 1. Richmond Park Stormwater Improvements EXISTING 0 — Pipe/Culvert cl X� _Ditch 7, W PROPOSED p or CB Type 2 Zr; `r U.1�t- Storm Drain N� RICH MONDQ x �X } - v w Q w �• / �NOF Restore Functioz w n of Pipe = to + ran Q BfRC . N 0 300 600 Y �� ,• �R� i �� ��/F � ' Birch Bay Fee! K ocument Path: S:VT45233 Birch PoinhMXDlPublic Meetln4 21T42523 Richmond k d - Total Cost: $1.77M (Existing) $2.61 M (Future) 2. Roger's Slough Drainage Improvements M I JM11 N PROPOSED D 250 500 •` - Block Culvert Feet I " HO 4 -rf !� ' .`�. R�ZO� _ �=Culvert Ditch Regrade Remove Culvert �- Storm Drain ® CB Type 2 UJ * y Q ..t Pipe/Culvert EXISTING r- y, • f s� G,�e°�`��' Deeper under = Ditch Future Conditions BIRCH POINT LOOP } f . ��. t' Rom' . �� • !� r, ti" t 81RGif BgyDR 24 �r x Kwann Lake .�►�; 4r 4' x 7' Structure (Existing) # � ' ' 5x 8Structure (Future} . o Total Cost: $2.44M (Existing) $2.85M (Future) 3. Birch Bay Village Stormwater Improvements M 1�—BIRCH'POINT R ~_ SALISN Rb w 5 �O CowICHAN RD M PROPOSED Storm Drain ® CB Type 2 - EXISTING P = PipelCulverl Flap Gate = Ditch l �• Kwann Lake ' i ... -. 0 250 SOD Feet Document Path-S?tT4523(BirchPOinAA4XDWubUMesfina21T42523 iAwdeh0V.rnxd o° 0 Birch Bay Total Cost: $1.26M 4. Bay Ridge Estates Stormwater Improvements = I PROPOSED Culvert Ditch Regrade = Storm Drain ® CB Type 1 Q CB Type 2 EXISTINGI " )'• = PipelCulvert W A = Ditch r Deepen, Widen Ditch Replace Ditch 30" ^_CC 409 �rh _ Feet '33 Birch POintIMXDfiPubilc Atino,ZrT42523 �SavR d AP Total Cost: $770K 5. Beaver Creek Drainage Improvements Total Cost: $1.25M Proposed Drainage Improvement Projects =Mhkh M • New pipeline to ba Ro 0 Alk Ah Ak • Replace culvert • Connect Birch Bay • New culverts at • Regrade roadside When can we build them? at Rogers Slough $1.77M (Ex) $2.44M (Ex) $2.61 M (Fu) $2.85M (Fu) to Kwann Lake • Construct bypass at Rogers Slough $1.26M Selder Road • Regrade ditch Total: $8.74M $770k $1.25M 2024-2029 WRIP 2023 —Cottonwood Inlet Final Repair (FEMA) 2024 — Charel Final Repair (FEMA) & Holeman Ave 2025 - Semiahmoo Drive & Normar Place 2026 — Lora Lane Tidegate Modifications 2027 - Birch Point Outfall Repair Maintain schedule for projects already underway and/or previously prioritized by the AC (bluff projects) ❑ 2028 — Richmond Park Stormwater Improvements ❑ 2029 — Roger's Slough Drainage Improvements ❑ 2030 — Birch Bay Village Stormwater Improvements ❑ 2031 — Bay Ridge Estates Stormwater Improvements ❑ 2032 — Beaver Creek Drainage Improvements Add new projects from the Birch Point Drainage Study starting in 2028 2024-2029 WRIP la Project Des riNo.ptio DIatabae BES Pre s Expenditur 2024 2025 2 2027 2029 Total D Nog SWP OSWBB23-02 Charel Terrace Stormwater Ell Repair: Mari le ou0all stabilization to prolecla CN RW RW RW RW RW 13 bluff slope [emergency repair 20221 and permanent 20011 298 $ 350,000 FEMA $ 750,000 stabilization(2023) CH $ 50'000 BBWARM CN CN CN CN CN SWP OSWBB23-03 Holeman Avenue Stormwa[er HE HE HE (PW-11:HE Rep lace CBs, upsze cul verta, 07-242 378 RW RW RW RW $ 905,000 �mprovements -establish ditch Holeman Ave Birch Bay Dr CN $ 300,000 BBWARM CN CN CN CN CN on near CN $ 400,000 FEET CN CN CN CN CN SWP OSWB023-04 Semiahmoo Drive South & -RE $ 35,000 hRl HE $ bU,UUU Outfall Improvements (BP-2, 13P-5]: lJpsize 18-009 PE PE PE PE PE PE 15 culverts and re-esta 50.3 RW $ 15,000 BBWARM CN $ 410,000 Road Fun RW RW RW RW $ 1,355,000 Semiahmoo Drive_ SWP Ili 16 Improv ents (B $ 1,160,000 nstall energy dissi • them z17 How to SWP05WBB23- Ga[eModifica[io Wgoing are e ♦ ♦ • payfor $structureandrepair culvert under Birch SWP OSWBB23- 18 & ❑utfall Improv $ 970,000 culverts and replace CN CN CN CN $ 25g000 BBWARM CN CN erosionCN CN CN CN $ 300.000 REST CN CN PE PE PE $ 660,000 BBWARM HE PE $ 140,000 BBWARM PE SWP OSWB023-00 Richmond Park Stormwater A A A RW RW RW $ 40,000 BBWARM RW PW PW 19 Improvements(SH-21: Address drainage concernsin Richmond Park by re-routing stormwater down Shlntaffer 22-010 425 1 1 (�,Jj 0 CN CN CN CN CN $ 680,000 Road Fun CN $ 2,600,000 Road to a Birch Bay outfall CN CN CN CN CN $ 700,000 BBWARM CN CN CN CN CN CN $ 300,000 PEET CN Roger's Slough Drainage Improvements'_ Re- PE PE PE PE $ 750,000 BBWARM PE PE $ 150,000 BBWAR grade ditches, install new culverts, and replace existing O 29 RW RW RW RW RW RW 20 pipe with concrete box culvert under Birch Point Road 23-002 70.2 CN CN CN CN CN CN $ 1,950,000 BBWAR $ 2,850.000 Into Roger's Slough CN CN CN CN CN CN Birch Bay Village Drainage Improvements' /� /� PE PE PE HE PE $ 35g000 BBWARM PE 21 Llpsize existing culverts and Install new pipe and catch 23-003 52.9 1 O O RW CN CN CN CN CN $ 350,000 basins In Birch Bay Village to reduce flooding �.(i CN CN CN CN CN CN CN CN CN CN CN CN PE PE PE PE PE PE $ 220,000 BBWAR 22 Bay R Ridge Estates Drainage Improvements: Bay and install new culverts and CBs on Birch Point 23-004 46.1 203 CN CN CN RW RW RW $ 220,000 Road and Spider Road to reduce flooding CN CN CN CN CN CN CN CN CN CN CN CN BBWARM Rate Study The BBWARM stormwater program is funded through a service charge based on the amount of impervious surface on each developed parcel in the Birch Bay watershed. Ei A. It has remain unchanged: L since its inception in 2009 10-Year Fund Balance Projections mom ❑ Status quo: Using current project estimates and programmatic costs o No additional revenue besides what's already confirmed (REET, grants, FEMA funding, cost share with Road Fund) o Maintain current BBWARM service fee 4 B BWARM fund will be overspent by 2025 0 10-year fund balance:-$9,844,943 Proposed Proposed Proposed Proposed Proposed Proposed Proposed Proposed Proposed Proposed Proposed Gash Flow Projection Rev/Exp. Rev/Exp. Rev/Exp. Rev/Exp. Rev/Exp. Rev/Exp. Rev/Exp. Rev/Exp. Rev/Exp. Rev/Exp. Rev/Exp. 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 Beginning Balance $1,539,907 $1,169,432 $673,057 -$1,096,943 -$2,796,943 -$3,766,943 -$5,591,943 -$7,481,943 -$8,304,943 -$9,004,943 -59,424,943 Revenue fees and interest $780,000 $780,000 $180,000 $780,000 $780,000 $780,000 $780,000 $180,000 $780,000 $780,000 $780,000 reimbursements -REET $0 $400,000 $200,000 $200,000 $20Q000 $200,000 $200,000 $200,000 $200,000 $200,000 $200,000 reimbursements - FEMAgront $240,625 $170,625 $0 $0 $0 $0 $0 $0 $0 $0 $0 reimbursements - ECYgmnt $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 reimbursements - Rood Fund $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 custshare - Birch Buy Wllage/Normar $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 $0 Total Revenue $1,020,625 $1,350,625 $980,000 $980,000 $98Q000 $980,000 $980,000 $980,000 $980,000 $980,000 $980,000 Build ehareland Build S-h-oand Build Birch Point Build Ray Ridge Expenditures Build Cottonwood Rule- Norma, Build Lora Lane �utfall Build Richmond Park Build Rogers Slough Build Birch Ray Village Estates Build Bearer Creek Build Wooldridge CIP design/survey/permit5 etc $715,000 $340,000 $295,000 $700,000 $750,000 $350,000 $220,000 $343,000 $130,000 $100,000 $100,000 CIP canstr..N_ $125,000 $1,007,000 $1,905,000 $1,430,000 $650,000 $1,905,000 $2,100,000 $910,000 $1,000,000 $750,000 $750,000 progmmmoticsubtotal $550,000 $500,000 $550,000 $SS0,000 $SSQ000 $550,000 $550,000 $550,000 $S50,000 $550,000 $550,000 Total Expenditures $1,390,000 $1,847,000 $2,750,000 $2,680,000 $1,950,000 $2,805,000 $2,870,000 $1,803,000 $1,680,000 $1,400,000 $1,400,000 Net Income/(Loss) -$369,375 -$496,375 -$1,770,000 -$1,700,000 -$970,000 -$1,825,000 -$1,890,000 -$823,000 -$700,000 -$420,000 -$420,000 End of Year Fund Balance $1,169,432 $673,057 -$1,096,943 -$2,796,943 -$3,766,943 -$5,591,943 -$7,461,943 -$6,304,943 -$9,004,943 -$9,424,943 -$9,644,943 CIP Expenditure Projection 2023-2033 $2,000,000 MExpenditures --End of Year Fund Balance $0 2023 2024 25 2026 2027 2028 2029 2030 2031 2032 2033 -$ 2, 000,000 -$4, 000,000 -$ 6, 000,000 \ -$8, 000,000 -$10, 000,000 Inflation Calculator $1 in 2009 is equivalent in purchasing power to about $1.40 today, an increase of $0.40 over 14 years. The dollar had an average inflation rate of 2.44% per year between 2009 and today, producing a cumulative price increase of 40.23%. Percent Impervious Area (Development Density Rance) Monthly Fee Per E U Yearly Fee per E U Low (1-10 %) $5.02 $50.24 Medium (11-50- 0) $ .25 $75.00 High (>5M) $8.71 $104.52 o $84.47 0 $105.17 o $146.57 Total 2023 Service Charge: $790,454 x 40.23% = $1,108,454 Increase of $3181000 per year Rate Study & Funding Analysis I ❑ Why now? Long list of capital projects o Rapidly rising construction costs o More frequent severe storms o Increased pressure from the community to solve drainage issues Need ,. S Rate Study & Funding Analysis Hired FCS Group in August 2023 to conduct rate study Goal: determine amount of revenue required to meet BBWARM's financial obligations. 0 Evaluate rate structure 0 Review existing rate adjustments and exemptions 0 Recover costs associated with runoff contribution from outside district boundaries Research grants and loans (federal infrastructure funds?) 1 � THATCQM COUNTY BIRCH BAY STDRMWATER FUNDING ANALYSIS k _ — NE ON &Jrch Bay i PFY CONSULTING SERV10ES PROVTOM BY- -`FCS GROUP ,.iiuliI n114,11;l•i,l III IS Project Task Sep Oct Nov Dec ■E_ -I■■■■■■■1 MIME■■■: l■■■■■■■■1 ■■■■■■■t_ ]■■■■■1 ■■■■■■■■■■- 'E■■1 ■■■■■■■■■■■■■■■■ ■■■■■■■■■■■■■■■■ Jan Feb Mar Apr May Jun MEMEMEMEMEMEM MEMEMEMEMEMEM M ■■ ■ ■ ■■ ■ ■ ■■ ■ MEMEMEMEMEMEM MEMEMEMEMEMEM ■■■■■■■■■■■■■ ■■■■■■■■■■■■■■■■■ ■■■■■■■■■■■■■■■■■ ■■■■■■■■■■■■■■■■■ ■■■■■■■■■■■■■■■■■ 7■■■■■■■■■■■■■■■■ 'E■■■■■■■■■■■■■ MEMO MEMO MEMO MEMO Task Five: ® modelSpreadsheet ■■■■■■■■■■■■■■■■■■■■r NONE Draft report MFinal Whatcom County and B BVCC share a common interest in working cooperatively to address drainage issues in the community BIRCH BAY VfLLAGE MOU with Birch Bay Village On 10/24 Council agenda MOU Purpose: Identify the parties' respective roles and obligations related to agreed -upon projects that improve stormwater conveyance, reduce flooding and erosion, and improve and protect Birch Bay water quality and habitat Collaborate on design, construction, funding and management of selected projects within BBV and surrounding area MEMORANDUM OF UNDERSTANDING FOR CAPITAL IMPROVEMENT PROJECT COORDINATION WITHIN BIRCH BAY VILLAGE between WH,ATCOM COUNTY ("Courrtq" j, a political subdivision of the State of Washington, and the Birch Bay Village Community Club ("BSVCC" ) WHEREAS, the Birch Bay Village Community Club (SBVCC) is the largest development in the Birch Bay watershed with over 1,100 residential lots; and WHEREAS, the BBVCC has been an active stakeholder participating In comprehensive planning for Birch Bay for nearly two decades: and WHEREAS, Whatcom County Council adopted the Birch Bay Community Plan as a sub- area plan of the Whatcom Ccunty Cc m prehen s ive Plan in 2004, in which Birch Bay Village was identified as a frequently -flooded area with stormwater and drainage issues; and WHEREAS, Ccunty Council Resolution 2006-070 adopted the Birch Bay Cc m prehensive Stormwater Plan, which identifies stormwater issues, recommendations for programmatic solutions, capital improvement projects (CIPs), timelines and funding; and WHEREAS, "Drainage Issues near Roger's Slough at Birch Bay Drive (BV-01p' was listed as a priority capital improvement project in the 2006 Birch Bay Comprehensive Stormwater Plan due to excess runoff causing overflowing ditches and flooding of roadways and back yards; and WHEREAS, the Birch Bay Watershed and Aquatic Resources Management (BBWARM) distriot was established in March 2007 for the purpose of implementing recommendations made in the Comprehensive Stormwater Plan; and WHEREAS, the 13BWARM subzone assessment was implemented in April 2009 and the funds collected are designated for stormwater CIPs in the BBWARM district in addition to other stormwater programmatic program needs; and WHEREAS, in order to implement a CIP program in the Birch Bay watershed, BBWARM hired a Consultant to reevaluate all recommended C I P s from the Comprehensive Stormwater Plan and develop a revised ranking system to prioritize these projects. The "Birch Bay Drive Tide Gate 1 Capacity Issue" (BV-01) was listed as a top 10 priority capital project in the 2009 Birch Bay Watershed Project Screening and Criteria Memorandum; and MOU with Birch Bay Village MR ❑ County will evaluate project proposals based on the following criteria: Furthers the goals of the BBWARM program Provides a benefit to community members outside BBVCC Is the result of collaborative planning Includes provisions for cost sharing Identifies ownership and maintenance responsibilities for both parties MOU with Birch Bay Village Individual projects will be included as addendums to this agreement Will include specific details on: Size and location, financing, permanent and temporary easement requirements, design and construction considerations ❑ Signed by BBVCC's General Manager and County's Public Works Director First addendum: Roger's Slough maintenance? WOO - Questions? Kraig Olason Stormwater Program Manger, Public Works Stormwater o KUIason (Wco.whatcom.wa.us, 360-778-6301 ❑ Holly Faulstich o Natural Resource Specialist III, Public Works Stormwater o HFaulsti(@-w.whu,%.om.wa.L , 360-778-6290