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Efficient, Effective, Responsive
Efficient, Effective, Responsive
- Background
- State of the Lakes
- Phosphorus Sources and Reduction Goals
- Scope of Current Projects
- Future Potential Projects
- Requested Actions
- Questions/Comments
Authorization To Amend 2019 Parks Capital Improvement Program Budget - - PowerPoint PPT Presentation
Authorization To Amend 2019 Parks Capital Improvement Program Budget - - PowerPoint PPT Presentation
Efficient, Effective, Responsive Authorization To Amend 2019 Parks Capital Improvement Program Budget For Minnesota Board Of Water And Soil Resources Grant For Lebanon Hills Regional Park Chain Of Lakes Improvement Projects Mike Behan
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- Lebanon Hills Regional Park
(LHRP) has abundant water resources
- 2001 “Superstorm”
- Significant investments in flood
relief infrastructure
- Water quantity issues addressed
- Interest in water quality has
increased
- LHRP Master Plan (2015)
recommended lake study
Background
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- LHRP lakes not currently
impaired
- Plan to restore Schulze,
McDonough, Jensen lakes, provide protection for others
State of the Lakes
2017 Phosphorus Concentrations 2017 Chlorophyll-a Concentrations P Concentration (ug/L) Chl-a Concentration (ug/L) Shallow Lake Standard Shallow Lake Standard Deep Lake Standard Deep Lake Standard
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Phosphorus Sources
- Phosphorus runoff impacts water
quality
- Annually enters lakes from upstream
sources
- Leaches from lake bottom sediments
- Sampling and modeling identify
priority sources
- Projects prioritized based on source
and cost-effectiveness
Phosphorus Loading By Source Phosphorus Load (lbs/yr)
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Phosphorus Reduction Goals
Description Jensen O’Brien Schulze McDonough Holland Current Status Meeting Target Meeting Target Not Meeting Target Not Meeting Target Meeting Target Phosphorus Load Reduction Goal [ percent] 10% 5% 32% 25% 5% Phosphorus Load Reduction Goal [ lbs/ yr] 7 2 14 22 2
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Two Iron-Enhanced Sand Filters
- Jensen Lake (100% of goal)
– Also provides benefits to downstream McDonough Lake
- Schulze Lake (30% of goal)
BWSR Grant $267,000 Parks CIP $66,750 Total Cost $333,750 Aluminum sulfate injection treatment
- Schulze Lake (Remaining 70% of goal)
– Separate project funded through the Eagan-Inver Grove Heights Watershed Management Organization (E-IGHWMO). JPA to be presented for County Board consideration in April 2019.
E-IGHWMO Grant $30,000 Parks CIP $30,000 Total Cost $60,000
Scope of Projects
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- Work with MN DNR for fish stocking in McDonough and
Schulze lakes
- Evaluate needs for remaining projects
- Annual lake monitoring
- Effectiveness monitoring of installed projects
- Perform maintenance of installed projects (as-needed)
Future Projects
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Authorization To Amend 2019 Parks Capital Improvement Program Budget For Minnesota Board Of Water And Soil Resources Grant For Lebanon Hills Regional Park Chain Of Lakes Improvement Projects
Requested Action
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Efficient, Effective, Responsive