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MPCA Rulemaking Project for Source-Separated Organic Compost (SSOC) Facilities

MPCA Rulemaking Project for Source-Separated Organic Compost (SSOC) Facilities. Stakeholder Meeting for Focused Feedback February 10, 2012. http://www.pca.state.mn.us/jsri8b0. w-swrule2-05. Agenda. Introduction and Goal of Meeting (5 minutes) Overview of Rule Process (5 minutes)

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MPCA Rulemaking Project for Source-Separated Organic Compost (SSOC) Facilities

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  1. MPCA Rulemaking Project for Source-Separated Organic Compost (SSOC) Facilities Stakeholder Meeting for Focused Feedback February 10, 2012 http://www.pca.state.mn.us/jsri8b0 w-swrule2-05

  2. Agenda • Introduction and Goal of Meeting (5 minutes) • Overview of Rule Process (5 minutes) • Outline Siting Issues to Discuss (10 minutes) • Stakeholder Input (150 minutes) • Summary/Conclusions/Next Steps (10 minutes) During webcast email comments/questions to: yolanda.letnes@state.mn.us

  3. Introduction & Goal of Meeting • Dave Benke—Resource Management and Assistance Division Director • Steve Giddings—Prevention & Solid Waste Management Section Manager • Rick Patraw—Community and Business Assistance Section Manager • Milt Thomas—Facilitator • Other MPCA Staff

  4. Overview of Rules Process: Tentative Rule Schedule • Request for Comments: 7/26/10, 10/17/11 • Dual Notice (DN) – December 2012 • Final Adoption: • with hearing - 6 months after DN • w/o hearing - 3 months after DN

  5. Siting Related Topics • 5 foot separation to groundwater • 500 feet of horizontal separation • Soil permeability requirement • Pad requirements • Compost Maturity

  6. 5’ separation to the groundwater 7035.2555 subp. 3: An owner or operator may not establish or construct a source-separated waste composting facility in the following areas: (B) within five feet of a water table • The water table is defined in Minn. R. 7035.0300 • Generally top of saturated zone • Perched groundwater tables will be considered on a site by site basis

  7. 500’ separation to neighbors 7035.2555 subp. 3: An owner or operator may not establish or construct a source-separated waste composting facility in the following areas: (C) A minimum of 500 feet horizontal separation distance from the facility to the nearest residence, place of business or public contact area. • Requires 500 feet between all permitted waste activity areas and the nearest neighbor.

  8. Soil Permeability Requirement 7035.2836 subp. 8(G): at a minimum, the site should have a net of five feet of native soil with a maximum permeability of 1.4 x 10-4 cm/sec • The permeability throughout the entire 5 feet of soil must be less than 1.4 x 10-4 cm/sec • If there is more than 5 feet of soil, the net permeability of the soil must be less than 1.4 x 10-4 cm/sec • MPCA is considering using Soil Type/Classification instead of specific permeability

  9. Pad Requirements Is there more than 5’ of native soil to the groundwater?? NO No Siting Allowed YES Pad required Does that 5’ of soil have a net permeability less than 1.4x10-4 cm/sec?? NO Option #1: Soil Pad Place at least 1’ of soil with a permeability of less than 1x10-5cm/sec (must have at least 5’ to groundwater) YES Option #2: Geomembrane Install liner system defined in 7035.2836 subp. 4 No pad required

  10. Pad Requirements • If a pad is required, • Must be at least 2’ of soil with a permeability less than 1 x 10-5 cm/sec • There must be at least 5’ of soil between the final grade and groundwater • Tipping area, active composting and screening must be done on a pad • Storage of mature compost does not require a pad

  11. Compost Maturity Maturity is defined in Minn. R. 7035.2836 • 60% decomposition as determined by an ignition-loss analysis and one method approved by the commissioner including, but not limited to: • Solvita (7-8) • C/N ratio (10:1 to 20:1) • Other MPCA approved methods

  12. Stakeholder Input

  13. Summary/Conclusions/Next Steps • Send comments regarding 2/10/12 meeting to Yolanda Letnes no later than 2/24/12

  14. Variance Process Minn. R. 7000.7000 • Applicant may apply for variances for: • Grounds of economic burden • Grounds that compliance is not technically feasible

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