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June 13, 2022
4:00 PM - 5:30 PM
Bainbridge Island, WA 98110
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Groundwater Management Plan (GWMP) Working Group

Monday, June 13, 2022

Please click the link below to join the webinar:

Groundwater Management Plan Advisory Sub-Committee 

DATE/TIME:        13 June 2022 / 4:00pm to 5:30pm

Please click the link below to join the meeting: TBA


  • CCAC: Deb Rudnick, Mike Cox
  • ETAC: Charlie Kratzer, Melanie Keenan, Malcom Gander
  • UAC: Andy Maron, Ted Jones
  • COBI: Maureen Whalen

Meeting PurposeGroundwater Management Plan progress

Items for discussion

  1. GW Model Update Contract under preparation. Tasks include (to be confirmed)
    1. updates and improvements to the model grid, code, and recently collected data into the model. Update to MODFLOW 6
    2. sub-basin grid refinements for Manzanita and Springbrook
    3. validate model
    4. 100-year forecast for rate of change of water levels/potential for sea-water intrusion
    5. technical memorandum
    6. public meeting support
    7. Schedule: completed by early September 2022
  2. Early Warning Level data analysis, including 2021 data in progress
  3. Draft chapters 1-4 of the Groundwater Management Plan nearly complete
  4. Any other business


Action Items:



Person(s) Responsible

Date Due






Next meeting: 11 July 2022 4pm to 5:30pm via Zoom

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