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Sustainable Water Supplies WS - Jeremiah Asher


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North Central Region One Water Action Forum

Published in: Environment
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Sustainable Water Supplies WS - Jeremiah Asher

  1. 1. Institute of Water Research MICHIGAN STATE UNIVERSITY Michigan’s Water Withdrawal Assessment Tool Sustainable Water Supplies: Preserving and Conserving a Critical Resource One Water Action Forum – Dec 12, 2018 Jeremiah Asher, Assistant Director Institute of Water Research Michigan State University 12/12/2018 125 5,500 35,000
  2. 2. Great Lakes Compact (Great Lakes–St. Lawrence River Basin Water Resources Compact) • 10 year anniversary of legislation that prevents diversions of water from the Great Lakes (Dec 8, 2008) • The compact details how the states manage the use of the Great Lakes Basin's water supply and builds on the 1985 Great Lakes Charter and its 2001 Annex. • Interstate Agreement between Illinois, Indiana, Michigan, Minnesota, New York, Ohio, Pennsylvania and Wisconsin. • Focus on: • Preventing significant adverse resource impacts • Ban on new or increase diversions from the Great Lakes • Protection and efficient management of water resources
  3. 3. 1981 Powder River Coal Company divert GL water to Wyoming 1982 USACOE studies diversion from GL to replenish Ogallala Aquifer 2001 Michigan Billboard – Concern for diversions of water from the Great Lakes
  4. 4. Managing Michigan’s Water Resources 2006 and 2009 Michigan Water use legislation PA 33-36 Require large capacity water withdrawers (over 70 gpm) to use of a screening tool to assess withdrawal impacts Withdrawals could have no adverse resource impact Water Withdrawal Assessment Tool
  5. 5. Unique Approach Groundwater Advisory Council – representing stakeholders from industry, agricultural, state, non profit and universities Goal to use science to inform policy, prevent adverse resource impacts, and minimize the burden of the applicant and state to permit every proposed new high capacity withdrawal
  6. 6. Accounting Database Management Zones Groundwater Depletion Model Fish Response Model Stream Flow Models Registration A B C D User Proposed Withdrawal MDEQ, MDNR, USGS, MSU-IWR Developed a screening tool to assess the impact of new high capacity water withdrawals > 70 gpm
  7. 7. 0 0.2 0.4 0.6 0.8 1 0 0.25 0.5 0.75 1 Proportion of index flow removed Proportion A B C D Adverse Resource Impact Gradient of increasing risk Interpreting the Fish Curves With an Eye to Policy Characteristic Fish Thriving Fish 90% 80%
  8. 8. Use of Water Withdrawal Assessment Tool • Nearly 5,000 registrations and site specific reviews 0 10 20 30 40 50 2009201020112012201320142015201620172018 PERCENT YEAR Percent of Withdrawals Needing Site Review 24 80 105 275 294 204 156 165 190 162100 232 341 588 594 351 221 307 240 228 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 Registrations and Site Reviews by Year Site Review Registration • Michigan has riparian water rights, so if a watershed is depleted, water user committees are to be formed
  9. 9. Questions