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Metropolitan Council. Metropolitan Council Environment Committee Master Water Supply Plan. February 10, 2009. Keith Buttleman Assistant General Manager, Environmental Quality Assurance. Christopher Elvrum Manager, Water Supply Planning. Purpose. Draft Master Water Supply Plan - PowerPoint PPT PresentationTRANSCRIPT
Metropolitan Council
Metropolitan Council Environment Committee
Master Water Supply Plan
February 10, 2009
Christopher Elvrum Manager, Water Supply Planning
Keith ButtlemanAssistant General Manager,
Environmental Quality Assurance
Purpose
Draft Master Water Supply Plan
Public review comments
Master Plan completion schedule
Master Plan Conclusions
Overall supplies are regionally adequate
Some water supply issues will occur using traditional sources
Options available to address potential issues
Early identification of issues critical
Ongoing assessment will guide sustainable water use choices
Goal and Principles
Goal: Ensure a sustainable water supply for current and future generations.
Principles
Water supply integral component of planning
Regional context for local decisions
All hydrologic systems considered
Water quality important
Interjurisdictional cooperation viable option
Cost-effectiveness considered
Wise use critical
Availability Analysis
Population forecasts
Land use
Water use
Climate
Groundwater recharge
Contamination
Aquifer analysis
Water Supply Availability AnalysisIssue Identification
METROPOLITAN AREA WATER SUPPLY MASTER PLAN
Ongoing Evaluation
Conservation Surface Water Evaluation
Metro Model 2
4,913 miles2
Includes entire metro
9 layers
Unconsolidated
Prairie du Chien
St. Lawrence
Ironton-Galesville
Mt. Simon
St. Peter
Jordan Eau Claire
Franconia
Model Questions
Are supplies available where we need them?
Will pumping harm:— neighboring wells— natural resources— the aquifer
How will climate and land use affect future availability?
Planning horizons: 2030, 2050
Municipal water use drives water demand growth
— Non-municipal demand included; no change forecasted
Current sources used for future demand whenever possible
Scope and Assumptions
Water Supply Development Issues
Significant decline in aquifers
Well interference
Impacts on surface waters
Significant uncertainty regarding aquifer extent and productivity
Groundwater contamination and vulnerability to contamination
DRAFT
DRAFT
Reporting Results: Community Water Supply Profiles
Current and projected water use
Current Sources
Available Sources
Issues that need to be addressed
Potential impact to surface waters
Issue Responses
Issue: Potential impact to surface waters
Threshold
>1m predicted decline in surficial aquifer by 2030
Response
• Develop resource protection thresholds
• Daily measurements at wells and resource
Issue Responses
Development of resource protection thresholds
Increased monitoring and data collection
Evaluation of supply alternatives
Increased conservation
Limit withdrawals
- Use alternative source is an option
DRAFT
Components of the Plan
Report
Community Profiles
Issue Responses
Conservation Toolbox
Water Supply Make-A-Map Application
Master Plan Public Comments PeriodNovember 3 – December 16th
Public Meetings 10:00am-Noon:December 2, City of Woodbury City Hall December 3, City of Savage, City HallDecember 4, City of Maple Grove Government Center
Email, US Mail, Voice Mail, Fax• Mail: Metropolitan Council Data Center, 390 N. Robert
Street, St. Paul, MN 55101 • Fax: 651-602-1464 • Public Comment Line: 651-602-1500 • Email: [email protected]• TTY: 651-291-0904
Public Commenters
Public meetings— 46 attendees from:
– 10 cities and townships – counties, – DNR, MDH, EQB, – consultants, non-profits– Metro Cities (AMM), and– Representative Paul Gardner
— 4 Metropolitan Area Water Supply Advisory Committee Members
Letters/emails
Total of 59 commenters
Comments
General Comments
Metro Model 2
Integrating Water Supply with Comprehensive Planning
Development of community Profiles and Issue Responses
Updating the Master Plan
Surface water and Stormwater
General Comments
General support
How does the plan meet the statutory requirements
What are recommendations
Metro Model 2
Model should be recalibrated prior to publication
What were the methods and measures used to ensure the soundness of the Model
Integrating Water Supply with Comprehensive Planning
Support/encourage integration with other comp planning
Do not make water supply a metropolitan system
Community Profiles and Issue Responses
How were the forecasts responses developed
Do not introduce requirements (issue responses) without statutory authority
How were local studies considered
What is the reasonableness test for responses
How will the Master Plan affect non-municipal water appropriators
Implementing the Master Plan
What will the role of the Met Council and DNR be in implementing the plan
How will existing plans and permits be affected
How will the plan be updated
How will local studies be incorporated
Surface Water and Stormwater
Plan focuses on groundwater when 1/3 of population uses surface water
Management of surface water source outside jurisdiction
Support stormwater management activities that recharge groundwater
Map soil contamination to evaluate recharge areas
Comment Responses
Model Recalibration
Add information/clarify plan text— Technical analysis— Integration with Comprehensive Planning— Permitting process— Plan implementation— Relationship to surface water and stormwater
management
Next Steps
Revise Plan – January/February
Update Metro Model 2 – January/February
Update profiles – February/March
Final Advisory Committee Review – March 26
DNR/Met Council Approval – April/May