wastewater administrators conference · 2020. 1. 30. · teresa seidel, director, water resources...
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Wastewater Administrators Conference
Teresa Seidel, Director,
Water Resources Division
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Water Resources Division
Protect and Monitor4 Great Lakes and Lake St. Clair11,000 inland lakes76,000 river and stream miles6.5 million acres of wetlands74,000 acres of coastal dunesGroundwater
For swimming, fishing, drinking water, and aquatic ecosystems.
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Water Resources
Update
Division Restructure
Staffing and Priorities
PFAS in Biosolids
High Water Levels
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Division Restructure
• Became EGLE
• Office of Great Lakes Rejoins
• New Field Section Created
• Aligned Programs for Success
• Emerging Pollutants Section
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Staffing and
Priorities
• Onboarding 33 new staff
– 6 NPDES to eliminate backlog
– 12 PFAS
– 3 Water Withdrawal
– 9 Resource
– 1 Enforcement
– 1 Biosolids
– 1 Surface Water Assessment
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PFAS Biosolids Strategy
• Develop and implement a PFAS biosolids strategy in Michigan which takes a thoughtful data driven science-based approach to the issue of PFAS in municipal biosolids until such time as federal criteria is developed by the EPA.
• Evaluate biosolids land application sites and associated risks as necessary.
• Review current science and work collaboratively with stakeholders, EPA, and the Science Advisory Panel to evaluate risk and develop appropriate guidance and criteria.
• In conjunction with IPP Initiative efforts, reach equilibrium in program status that allows majority of WWTPs to maintain option to land apply biosolids. This is contingent on identifying and controlling sources within wastewater collection systems and on the ability to develop the guidance above.
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Statewide Biosolids Study
42 POTWs/WWTPs (Fall/Winter 2018)– Sample Effluent, Influent, and Biosolids
• 20 Largest
• Various Medium and Small WWTPs – 3.0 – 9.0 MGD ( 8 WWTPs)
– 0.5 – 3.0 MGD ( 8 WWTPs)
– 0.2 – 0.4 MGD ( 5 WWTPs)
• Various Treatment Processes
• Some with no Industrial Users (and no IPPs)
– Screen Land Application Fields from Select WWTPs (2019)
• High/Low Concentrations
Evaluate Presence of PFAS in Municipal Wastewater and Biosolids in Michigan:
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Statewide StudyBiosolids Results
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When is it considered industrially impacted?
4 WWTPs with PFOS concentrations near or above 1,000 ppb
• No regulatory criteria to compare against
• WRD determination – suspension of residual management program based on:– Review of land application studies with high PFAS
concentrations (Decatur, Alabama)– Literature review of known concentrations of
PFAS in biosolids – Small to mid-size plants highly influenced by
industrial user inputs– Conservative approach - in the interest of public
health and protection of resources while additional information can be obtained
Biosolids/Sludge
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Biosolids Land
Application
Field Screening
22 Fields Screened – 3 WWTPs with PFOS >1,000 ppb
– 5 WWTPs with PFOS <100 ppb
• Sampled: Soils, groundwater, tile drains, swales, ponding/perched waters, and surface waters
• Developed field prioritization process to screen "worst case scenarios" for each facility
• Range of soils and application history
• Residential wells sampled at one location
• Lapeer reports posted on MPART web site
• Reports pending for remaining fields
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2020 Next Steps
• Establish interim PFAS biosolids concentrations screening levels; these levels can be adjusted periodically as new evaluations are completed.
• Expand biosolids monitoring requirements to select WWTPs.
• Continue to evaluate land application sites as necessary.
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High Water Levels
Grand River 50% of annual flow discharged in 2 months.
Wettest 1, 3, and 5 year period since began recording more than 120 years ago.
Lake Michigan is up 5.5’ since 2013.
Expect Great Lakes to be up 12-18” over Spring 2020.
Annual precipitation 36”; already over 25”.
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High Water Levels
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Historical Water Levels
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Infrastructure Concerns
• Letter sent to NPDES permittees last week via GovDelivery to request vulnerability analysis to minimize impacts:– WWTP bypasses
– Backflow into collection systems
– Increased infiltration and inflow
– Discharges from storm water BMPs
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Michigan Department of
Environment, Great Lakes, and Energy
800-662-9278www.Michigan.gov/EGLE
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