2020 Water Supply Planning Report to the Minnesota Legislature

Information Item: 2020 Water Supply Planning Report to the Minnesota Legislature

Lanya Ross, Environmental Analyst

Metropolitan Council: September 9, 2020 Water Supply Planning in the Twin Cities Metro Area is a Collaborative Endeavor • 186 Cities and townships • 100+ Water utilities

l~ Groundwater: private wells Groundwater: municipal wells

Groundwater + Surface water: municipal wells, intakes -- -- Surface water: municipal intakes Private (domestic) well 2 Minnesota Statutes 473.1565 METROPOLITAN AREA WATER SUPPLY PLANNING ACTIVITIES; ADVISORY COMMITTEES Enacted 2005

Advisory Planning Recommendations Reports Information Committees

METROPOLITAN 3 COUNC I L Contents

• Water supply at a glance “To me, the greatest value in this partnered approach is that documents like the Master • Shared principles Water Supply Plan (2015) are informed by the real experiences and expertise of the • Collaboration, technical local water suppliers that the public has come to trust for safe and sustainable investigations, planning, and delivery of drinking water.” implementation Mark Maloney, Public Utilities Director, • Outcomes and future work City of Shoreview • Highlights

METROPOLITAN 4 COUNC I L Water Supply at a Glance

• 100+ municipal water supply systems • 1,500 square miles designated for source water protection • 10,000+ miles of local water supply distribution pipe • 60,000 private domestic wells + 5,000 private business wells

Metropolitan Council has a unique role as a planning agency, not as regulator or utility

METROPOLITAN 5 COUNC I L Collaboration

MAWSAC Communities & Counties ------1 Isanti D Subregional Workgroup Sherburne Chisago 1---- 1 Communities ·. ,,., TAC Communities D '···. ·- \ Anoka Wright _ ,_ I ( - ' [ ' I I __~ _, w a~hington -~--1 Hennepin Ramsey '• ' l [ Carver( • -.,/1 } I I ; •·.. S ( ~-/Scott t Dakota ) '' l ; I ' ·~-- ( '· ( --,--7 --, Ll __..':,.\ ' I / · ' I ~ ., .: ~. I - ----'--~--,-- \ I L " . . ) L \'- -'" . L ·.;;:~z-;;)- [. , /,._ . I fi ..., T'j " ,:,.\... l -~-- 1' "- - - \ ., ..-J-L/.,Jr •ti,

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- 1-~ c:===-r·- ,---~:::- [ N ... _ -', METROPOLI TAN 0 10 20 0 C OU NC I L A METROPOLITAN 6 COUNC I L Technical Investigations

2005-2020 “Council funding of studies and Collected and analyzed new geologic, water projects was important because it level, and water chemistry information isn’t always easy to get local city councils to commit funds to 2009-2017 something that reaches beyond Developed and updated Metro Model their borders.” 2020 & 2020 Evaluated of groundwater and surface Steve Albrecht, Former Burnsville Public Works Director interaction 2015-2020 Subregional analyses of alternative water supply approaches METROPOLITAN 7 COUNC I L Planning

WATER SURP.LY P.t!AN -

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Local Vvater Supply Plan Template NEW WELLS DISTRIBUTION WATER TREATMENT Third Generation for 2016-2018 ·-~April 10, JOlJ so+ communities 60+ communities 35+ communities

Source: 2040 Local water supply plan updates submitted as part of community comprehensive plans. Not all local plan updates have been submitted to the Council; this information will be updated as plans are received.

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8 Implementation for Sustainability The Master Water Supply Plan defines water supply sustainability as: • Use of existing water supply infrastructure and investments is maximized • Surface water use is planned and implemented to maintain protected flows • Groundwater used is planned and implemented to: – Maintain aquifer levels consistent with safe-yield conditions (MN Rules 6115.0630) and/or maintain projected surface water flows and water levels – Minimize impacts to groundwater flow directions in areas where groundwater contamination has, or may, result in risks to the public health • Demand that exceeds sustainable groundwater withdrawal rates is supplied by the most feasible combination of efficiency and conservation, surface water, and/or wastewater and stormwater reuse • Legislative changes are made that align agency directions on all aspects of water supply • Water users and suppliers recognize uncertainty and seek to minimize risk METROPOLITAN 9 COUNC I L Highlight: MnTAP Water Efficiency Intern Program • Launched in 2012 • Student interns placed in metro area organizations • Between 2013 and 2017 20 projects made 159 recommendations • As of 2018, the intern recommendations that were \ ,, implemented save 87 million gallons/year and $486,000/year • Still going strong!

METROPOLITAN 10 COUNC I L Highlight: Water Efficiency Grant Program

2015-2017: • 19 communities Council grants help established local water growing communities use 1,190 -I water more efficiently irrigation controllers clothes washers efficiency programs $500,000 Water Efficiency Grants

million n1illion million • 52 million gallons of 4,510 52 gaJJons 18 gallons 4 • 2 gallons TOT AL DEVICES SAVED ANNUALLY SAVED ANNUALLY SAVED ANNUALLY water saved annually REPLACED

2019-2022: • 40 communities (17 returning)

METROPOLITAN 11 COUNC I L Highlight: Regional Groundwater modeling

• Supports regional policy “Encourage the continued development of a metropolitan • Many communities use as a starting groundwater model, as a tool to place for wellhead protection, define aquifers and aquifer saving time and money recharge areas and as a basis for aquifer protection and

- -- - -, aquifer change: 20% ._ management.”

2010 vs. 2040 . f ~' • less ~ pumping 11J,:\'- , . J ,J • : - . ~ I i °': Bloomington 2040 Over 40 feet of • rebound J_ L--.., zr •- 1~ ; ·. .... - ' ~ ' Comprehensive Plan Update I- . -~ ,. .--.. _;_ • ) . ;' No change ...... --. ' ~ -i ,} ,, ; ~· . --~--" ~ Over 40 feet of -½/ _.,,...... -..L. .:--r' 1 decline ,,( _ ____, . ..__ .,...... J

METROPOLITAN 12 COUNC I L Outcomes 1. Better understanding of shared resources and challenges 2. Successful sub-regional collaborative platform to advance water sustainability goals 3. Better management/long-term resiliency of shared resources 4. More resources focused on regional water supply challenges 5. Better equipped to pursue next steps

Community Leadership for Clean Water

RSITY OF M I NNESOTA Driv en to D iscov er'"

METROPOLITAN 13 COUNC I L Examples of Results

Communities participating in Groundwater - Surface Water - Total subregional water supply work 350 ------300 groups: ~ 0

~ Q) 250 20 communities in 2005 versus Cl. Cl) C 200 72 communities in 2002 0 ro (9 150 C 0 100 40 communities receiving ~ grants to establish local water efficiency rebate programs 1940s 1950s 1960s 1970s 1980s 1000s 2000s 2010s

METROPOLITAN 14 COUNC I L Next Step

• Submission of the final report to the Minnesota Legislature as part of Minnesota Water Plan – September 15, 2020

METROPOLITAN 15 COUNC I L Questions

Lanya Ross Environmental Analyst 651-602-1803 [email protected]

Ali Elhassan Manager, Water Supply Planning 651-602-1066 [email protected]

METROPOLITAN 16 COUNC I L