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Final Permit - Bliss Collector WWTP (#MN0054119) t-wq-wwprm2-20 · LB 1411 · 3/26/21 September 2, 2021 The Honorable Christine Maefsky Mayor, City of Scandia Bliss Collector Wastewater Treatment Facility 14727 209th Street North Scandia, MN 55073-8503 RE: Final SDS Permit Permit No. MN0054119 T032N, R20W, Section 31, Scandia, Washington County, Minnesota Dear Mayor Maefsky: Enclosed is the final permit for the facility identified above. The Minnesota Pollution Control Agency (MPCA) has prepared this permit in accordance with Minn. Stat. chs. 115, 115A, and 116, and Minn. R. chs. 7000 and 7001. No written comments were received during the 60-day public comment period. A request was not made for a public informational meeting or contested case hearing during the 60-day public comment period. If you have any questions regarding any of the terms and conditions of the final permit, please contact Rachel Tucker at 651-757-2853 or by email at rachel.tucker@state.mn.us. Sincerely, Randy Thorson This document has been electronically signed. Randy Thorson, P.E. Supervisor Metro Regional & Infrastructure Financing Unit Municipal Division RT/RT:map Enclosure: Final Permit cc: Ken Cammilleri, City Administrator, City of Scandia (w/enclosure ) Charles Fischer, Public Works Director, City of Scandia (w/enclosure) Ryan Goodman, P.E., City Engineer, Bolton & Menk (w/enclosure) IND20190001 @ 3549 State Disposal System MN0054119 Permittee: City of Scandia Facility name: Bliss Collector Wastewater Treatment Facility City: Scandia County: Washington Issuance date: September 1, 2021 Expiration date: August 31, 2026 The state of Minnesota, on behalf of its citizens through the Minnesota Pollution Control Agency (MPCA), authorizes the Permittee to operate a disposal system at the facility named above, in accordance with the requirements of this permit. The goal of this permit is to reduce pollutant levels in point source discharges and protect water quality in accordance with the U.S. Clean Water Act, Minnesota statutes and rules, and federal laws and regulations. This permit is effective on the issuance date identified above. This permit expires at midnight on the expiration date identified above. Signature: Randy Thorson This document has been electronically signed. for the Minnesota Pollution Control Agency Randy Thorson, P.E. Supervisor Metro Regional & Infrastructure Financing Unit Municipal Division Submit eDMRs Submit via the MPCA e-Services at https://rsp.pca.state.mn.us/TEMPO_RSP/Orchestrate.do?initiate=true Submit WQ reports to: Electronically: wq.submittals.mpca@state.mn.us Include Water quality submittals form: https://www.pca.state.mn.us/sites/default/files/wq-wwprm7-71.docx Or, by mail: Attention: WQ Submittals Center Minnesota Pollution Control Agency 520 Lafayette Road North St. Paul, Minnesota 55155-4194 Whole Effluent Testing (WET) and Pretreatment Annual Reports must be mailed to the WQ Submittals Center Questions on this permit? For eDMR and other permit reporting issues, use the directory listed at the bottom of the DMR page: https://www.pca.state.mn.us/water/discharge-monitoring- reports For specific permit requirements, contact your compliance staff: https://www.pca.state.mn.us/water/wastewater-compliance- and-enforcement-staff-contacts Wastewater Permit Program general questions, contact: MPCA, 651-282-6143 or 1-800-657-3938. Table of Contents Page 1. Permitted facility description ....................................................................................................................................... 3 2. Location map of permitted facility ............................................................................................................................... 4 3. Flow diagram ................................................................................................................................................................ 5 4. Summary of stations and station locations .................................................................................................................. 6 5. Permit requirements .................................................................................................................................................... 7 6. Submittal action summary ......................................................................................................................................... 30 7. Limits and monitoring ................................................................................................................................................ 34 Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 3 of 41 1. Permitted facility description The Bliss Collector Wastewater Treatment Facility (facility) is located at 18925 Manning Trail, Scandia, Minnesota 55073, Washington County. The facility discharges from WS 002 to land via drainfields. The facility is a Class D. The facility is designed to treat effluent from approximately 75 homes. There are 70 individual septic tanks and 46 shared Septic Tank Effluent Pump (STEP) systems through which sewage passes before entering the collection system: • An average wet weather (AWW) flow of 0.0198 million gallons per day (mgd) • 5-day carbonaceous biochemical oxygen demand (CBOD5) of 170 milligrams per liter (mg/L) • total suspended solids (TSS) of 28 mg/L This facility consists of small diameter force main, two lift stations, a stilling basin comprised of three septic tanks in series (7,500 gallons total), a dosing station and three single pass-through sand filter beds, and a dosing station going to a three-cell drainfield trench system. The drainfield system consists of three cells of drop box drainfields with ten laterals each. One or two cells rest at any given time. There are no known bypass points in this system. There are four monitoring wells at this site, one up gradient (GW 001) and three down gradient (GW 004, GW 006, and GW 008). This permit includes a schedule to abandon GW 008 and replace with a new well (GW 018). There are also nine piezometers (GW 009-GW 017). Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 4 of 41 2. Location map of permitted facility Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 5 of 41 3. Flow diagram Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 6 of 41 4. Summary of stations and station locations Station Type of station Local name PLS location GW 001 Well, Upgradient MW - 1s T32N, R20W, S31, NW Quarter of the NE Quarter GW 004 Well, Downgradient MW - 3s T32N, R20W, S31, NW Quarter of the NE Quarter GW 006 Well, Downgradient MW - 4s T32N, R20W, S31, NW Quarter of the NE Quarter GW 008 Well, Downgradient MW - 5d T32N, R20W, S31, NW Quarter of the NE Quarter GW 009 Piezometer, Other Pz. a T32N, R20W, S31, NW Quarter of the NE Quarter GW 010 Piezometer, Other Pz. b T32N, R20W, S31, NW Quarter of the NE Quarter GW 011 Piezometer, Other Pz. c T32N, R20W, S31, NW Quarter of the NE Quarter GW 012 Piezometer, Other Pz. d T32N, R20W, S31, NW Quarter of the NE Quarter GW 013 Piezometer, Other Pz. e T32N, R20W, S31, NW Quarter of the NE Quarter GW 014 Piezometer, Other Pz. f T32N, R20W, S31, NW Quarter of the NE Quarter GW 015 Piezometer, Other Pz. g T32N, R20W, S31, NW Quarter of the NE Quarter GW 016 Piezometer, Other Pz. h T32N, R20W, S31, NW Quarter of the NE Quarter GW 017 Piezometer, Other Pz. i T32N, R20W, S31, NW Quarter of the NE Quarter GW 018 Well, Downgradient Proposed Down gradient Well WS 001 Influent Waste Dosing Station 1 T32N, R20W, S31, NW Quarter of the NE Quarter WS 002 Intermediate: WW to Land Sand Filter Effluent, Dosing Station 2 T32N, R20W, S31, NW Quarter of the NE Quarter WS 004 Intermediate: WW to Land Infiltration Trench A T32N, R20W, S31, NW Quarter of the NE Quarter WS 005 Intermediate: WW to Land Infiltration Trench B T32N, R20W, S31, NW Quarter of the NE Quarter WS 006 Intermediate: WW to Land Infiltration Trench C T32N, R20W, S31, NW Quarter of the NE Quarter Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 7 of 41 5. Permit requirements GW 001 Well, Upgradient Groundwater Well: Large Subsurface Sewage Treatment System Well Monitoring Requirements 5.1.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)] 5.1.2 Sampling Location. [Minn. R. 7001.0150, subp. 2(B)] 5.1.3 Samples for Station GW 001 shall be taken at the groundwater monitoring well with the local name MW - 1s. [Minn. R. 7001.0150, subp. 2(B)] 5.1.4 The Permittee shall submit monitoring results in accordance with the limits and monitoring requirements for this station. If conditions are such that no sample can be acquired, the Permittee shall report "No Flow" or "No Discharge" on Discharge Monitoring Report (DMR) and shall add a Comments attachment to the DMR detailing why the sample was not collected. [Minn. R. 7001.0150, subp. 2(B)] GW 004 Well, Downgradient Groundwater Well: Large Subsurface Sewage Treatment System Well Monitoring Requirements 5.2.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)] 5.2.2 Sampling Location. [Minn. R. 7001.0150, subp. 2(B)] 5.2.3 Samples for Station GW 004 shall be taken at the groundwater monitoring well with the local name MW - 3s. [Minn. R. 7001.0150, subp. 2(B)] 5.2.4 The Permittee shall submit monitoring results in accordance with the limits and monitoring requirements for this station. If conditions are such that no sample can be acquired, the Permittee shall report "No Flow" or "No Discharge" on Discharge Monitoring Report (DMR) and shall add a Comments attachment to the DMR detailing why the sample was not collected. [Minn. R. 7001.0150, subp. 2(B)] GW 006 Well, Downgradient Groundwater Well: Large Subsurface Sewage Treatment System Well Monitoring Requirements 5.3.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)] 5.3.2 Sampling Location. [Minn. R. 7001.0150, subp. 2(B)] 5.3.3 Samples for Station GW 006 shall be taken at the groundwater monitoring well with the local name MW - 4s. [Minn. R. 7001.0150, subp. 2(B)] 5.3.4 The Permittee shall submit monitoring results in accordance with the limits and monitoring requirements for this station. If conditions are such that no sample can be acquired, the Permittee shall report "No Flow" or "No Discharge" on Discharge Monitoring Report (DMR) and shall add a Comments attachment to the DMR detailing why the sample was not collected. [Minn. R. 7001.0150, subp. 2(B)] GW 008 Well, Downgradient Groundwater Well: Large Subsurface Sewage Treatment System Well Monitoring Requirements 5.4.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)], Phases: Phase 2, Phase 1 5.4.2 Sampling Location. [Minn. R. 7001.0150, subp. 2(B)] Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 8 of 41 5.4.3 Samples for Station GW 008 shall be taken at the groundwater monitoring well with the local name MW - 5d. Monitoring and reporting requirements for GW 008 are effective at permit issuance until MPCA notification of the abandonment of the well. [Minn. R. 7001.0150, subp. 2(B)] 5.4.4 The Permittee shall submit monitoring results in accordance with the limits and monitoring requirements for this station. If conditions are such that no sample can be acquired, the Permittee shall report "No Flow" or "No Discharge" on Discharge Monitoring Report (DMR) and shall add a Comments attachment to the DMR detailing why the sample was not collected. [Minn. R. 7001.0150, subp. 2(B)] GW 009 Piezometer, Other Groundwater Well: Large Subsurface Sewage Treatment System Piezometer Monitoring Requirements 5.5.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)] 5.5.2 Sampling Location. [Minn. R. 7001.0150, subp. 2(B)] 5.5.3 Samples for Station GW 009 shall be taken at the piezometer with the local name Pz. a. [Minn. R. 7001.0150, subp. 2(B)] 5.5.4 The Permittee shall submit monitoring results in accordance with the limits and monitoring requirements for this station. If conditions are such that no sample can be acquired, the Permittee shall report "No Flow" or "No Discharge" on Discharge Monitoring Report (DMR) and shall add a Comments attachment to the DMR detailing why the sample was not collected. [Minn. R. 7001.0150, subp. 2(B)] GW 010 Piezometer, Other Groundwater Well: Large Subsurface Sewage Treatment System Piezometer Monitoring Requirements 5.6.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)] 5.6.2 Sampling Location. [Minn. R. 7001.0150, subp. 2(B)] 5.6.3 Samples for Station GW 010 shall be taken at the piezometer with the local name Pz. b. [Minn. R. 7001.0150, subp. 2(B)] 5.6.4 The Permittee shall submit monitoring results in accordance with the limits and monitoring requirements for this station. If conditions are such that no sample can be acquired, the Permittee shall report "No Flow" or "No Discharge" on Discharge Monitoring Report (DMR) and shall add a Comments attachment to the DMR detailing why the sample was not collected. [Minn. R. 7001.0150, subp. 2(B)] GW 011 Piezometer, Other Groundwater Well: Large Subsurface Sewage Treatment System Piezometer Monitoring Requirements 5.7.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)] 5.7.2 Sampling Location. [Minn. R. 7001.0150, subp. 2(B)] 5.7.3 Samples for Station GW 011 shall be taken at the piezometer with the local name Pz. c. [Minn. R. 7001.0150, subp. 2(B)] 5.7.4 The Permittee shall submit monitoring results in accordance with the limits and monitoring requirements for this station. If conditions are such that no sample can be acquired, the Permittee Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 9 of 41 shall report "No Flow" or "No Discharge" on Discharge Monitoring Report (DMR) and shall add a Comments attachment to the DMR detailing why the sample was not collected. [Minn. R. 7001.0150, subp. 2(B)] GW 012 Piezometer, Other Groundwater Well: Large Subsurface Sewage Treatment System Piezometer Monitoring Requirements 5.8.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)] 5.8.2 Sampling Location. [Minn. R. 7001.0150, subp. 2(B)] 5.8.3 Samples for Station GW 012 shall be taken at the piezometer with the local name Pz. d. [Minn. R. 7001.0150, subp. 2(B)] 5.8.4 The Permittee shall submit monitoring results in accordance with the limits and monitoring requirements for this station. If conditions are such that no sample can be acquired, the Permittee shall report "No Flow" or "No Discharge" on Discharge Monitoring Report (DMR) and shall add a Comments attachment to the DMR detailing why the sample was not collected. [Minn. R. 7001.0150, subp. 2(B)] GW 013 Piezometer, Other Groundwater Well: Large Subsurface Sewage Treatment System Piezometer Monitoring Requirements 5.9.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)] 5.9.2 Sampling Location. [Minn. R. 7001.0150, subp. 2(B)] 5.9.3 Samples for Station GW 013 shall be taken at the piezometer with the local name Pz. e. [Minn. R. 7001.0150, subp. 2(B)] 5.9.4 The Permittee shall submit monitoring results in accordance with the limits and monitoring requirements for this station. If conditions are such that no sample can be acquired, the Permittee shall report "No Flow" or "No Discharge" on Discharge Monitoring Report (DMR) and shall add a Comments attachment to the DMR detailing why the sample was not collected. [Minn. R. 7001.0150, subp. 2(B)] GW 014 Piezometer, Other Groundwater Well: Large Subsurface Sewage Treatment System Piezometer Monitoring Requirements 5.10.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)] 5.10.2 Sampling Location. [Minn. R. 7001.0150, subp. 2(B)] 5.10.3 Samples for Station GW 014 shall be taken at the piezometer with the local name Pz. f. [Minn. R. 7001.0150, subp. 2(B)] 5.10.4 The Permittee shall submit monitoring results in accordance with the limits and monitoring requirements for this station. If conditions are such that no sample can be acquired, the Permittee shall report "No Flow" or "No Discharge" on Discharge Monitoring Report (DMR) and shall add a Comments attachment to the DMR detailing why the sample was not collected. [Minn. R. 7001.0150, subp. 2(B)] GW 015 Piezometer, Other Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 10 of 41 Groundwater Well: Large Subsurface Sewage Treatment System Piezometer Monitoring Requirements 5.11.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)] 5.11.2 Sampling Location. [Minn. R. 7001.0150, subp. 2(B)] 5.11.3 Samples for Station GW 015 shall be taken at the piezometer with the local name Pz. g. [Minn. R. 7001.0150, subp. 2(B)] 5.11.4 The Permittee shall submit monitoring results in accordance with the limits and monitoring requirements for this station. If conditions are such that no sample can be acquired, the Permittee shall report "No Flow" or "No Discharge" on Discharge Monitoring Report (DMR) and shall add a Comments attachment to the DMR detailing why the sample was not collected. [Minn. R. 7001.0150, subp. 2(B)] GW 016 Piezometer, Other Groundwater Well: Large Subsurface Sewage Treatment System Piezometer Monitoring Requirements 5.12.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)] 5.12.2 Sampling Location. [Minn. R. 7001.0150, subp. 2(B)] 5.12.3 Samples for Station GW 016 shall be taken at the piezometer with the local name Pz. h. [Minn. R. 7001.0150, subp. 2(B)] 5.12.4 The Permittee shall submit monitoring results in accordance with the limits and monitoring requirements for this station. If conditions are such that no sample can be acquired, the Permittee shall report "No Flow" or "No Discharge" on Discharge Monitoring Report (DMR) and shall add a Comments attachment to the DMR detailing why the sample was not collected. [Minn. R. 7001.0150, subp. 2(B)] GW 017 Piezometer, Other Groundwater Well: Large Subsurface Sewage Treatment System Piezometer Monitoring Requirements 5.13.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)] 5.13.2 Sampling Location. [Minn. R. 7001.0150, subp. 2(B)] 5.13.3 Samples for Station GW 017 shall be taken at the piezometer with the local name Pz. i. [Minn. R. 7001.0150, subp. 2(B)] 5.13.4 The Permittee shall submit monitoring results in accordance with the limits and monitoring requirements for this station. If conditions are such that no sample can be acquired, the Permittee shall report "No Flow" or "No Discharge" on Discharge Monitoring Report (DMR) and shall add a Comments attachment to the DMR detailing why the sample was not collected. [Minn. R. 7001.0150, subp. 2(B)] GW 018 Well, Downgradient Groundwater Well: Large Subsurface Sewage Treatment System Well Monitoring Requirements 5.14.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)], Phases: Phase 4, Phase 3 5.14.2 Sampling Location. [Minn. R. 7001.0150, subp. 2(B)] 5.14.3 Samples for Station GW 018 shall be taken at the new down gradient groundwater monitoring well. Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 11 of 41 Monitoring and reporting requirements for GW 018, identified as Phase 3 in the Limits and Monitoring table, become effective upon MPCA notification of installation of the new well. [Minn. R. 7001.0150, subp. 2(B)] 5.14.4 The Permittee shall submit monitoring results in accordance with the limits and monitoring requirements for this station. If conditions are such that no sample can be acquired, the Permittee shall report "No Flow" or "No Discharge" on Discharge Monitoring Report (DMR) and shall add a Comments attachment to the DMR detailing why the sample was not collected. [Minn. R. 7001.0150, subp. 2(B)] WS 001 Influent Waste Waste Stream: Large Subsurface Sewage Treatment System Influent Monitoring Requirements 5.15.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)] 5.15.2 Sampling Location. [Minn. R. 7001.0150, subp. 2(B)] 5.15.3 Samples for Station WS 001 shall be taken at the first dosing station and shall be representative of total influent flow to the system. [Minn. R. 7001.0150, subp. 2(B)] 5.15.4 The Permittee shall submit monitoring results in accordance with the limits and monitoring requirements for this station. If conditions are such that no sample can be acquired, the Permittee shall report "No Flow" or "No Discharge" on Discharge Monitoring Report (DMR) and shall add a Comments attachment to the DMR detailing why the sample was not collected. [Minn. R. 7001.0150, subp. 2(B)] WS 002 Intermediate: WW to Land Facility Specific Limit and Monitoring Requirements 5.16.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)] 5.16.2 Sampling Location. [Minn. R. 7001.0150, subp. 2(B)] 5.16.3 Samples for Station WS 002 shall be taken at the second dosing station, prior to entering the drainfield. Samples from this station shall be representative of the total facility discharge to land. [Minn. R. 7001.0150, subp. 2(B)] 5.16.4 The Permittee shall submit monitoring results in accordance with the limits and monitoring requirements for this station. If conditions are such that no sample can be acquired, the Permittee shall report "No Flow" or "No Discharge" on Discharge Monitoring Report (DMR) and shall add a Comments attachment to the DMR detailing why the sample was not collected. [Minn. R. 7001.0150, subp. 2(B)] WS 004 Intermediate: WW to Land Facility Specific Limit and Monitoring Requirements 5.17.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)], Phases: Phase 4, Phase 3, Phase 2 5.17.2 Sampling Location. [Minn. R. 7001.0150, subp. 2(B)] 5.17.3 Samples for Station WS 004 shall be taken at a point prior to entering Infiltration Trench A. Monitoring and reporting requirements for WS 004, identified as Phase 2 in the Limits and Monitoring table, become effective upon MPCA notification of the installation of flow monitoring equipment. [Minn. R. 7001.0150, subp. 2(B)] 5.17.4 The Permittee shall submit monitoring results in accordance with the limits and monitoring requirements for this station. If conditions are such that no sample can be acquired, the Permittee shall report "No Flow" or "No Discharge" on Discharge Monitoring Report (DMR) and shall add a Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 12 of 41 Comments attachment to the DMR detailing why the sample was not collected. [Minn. R. 7001.0150, subp. 2(B)] WS 005 Intermediate: WW to Land Facility Specific Limit and Monitoring Requirements 5.18.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)], Phases: Phase 4, Phase 3, Phase 2 5.18.2 Sampling Location. [Minn. R. 7001.0150, subp. 2(B)] 5.18.3 Samples for Station WS 005 shall be taken at a point prior to entering Infiltration Trench B. Monitoring and reporting requirements for WS 005, identified as Phase 2 in the Limits and Monitoring table, become effective upon MPCA notification of the installation of flow monitoring equipment. [Minn. R. 7001.0150, subp. 2(B)] 5.18.4 The Permittee shall submit monitoring results in accordance with the limits and monitoring requirements for this station. If conditions are such that no sample can be acquired, the Permittee shall report "No Flow" or "No Discharge" on Discharge Monitoring Report (DMR) and shall add a Comments attachment to the DMR detailing why the sample was not collected. [Minn. R. 7001.0150, subp. 2(B)] WS 006 Intermediate: WW to Land Facility Specific Limit and Monitoring Requirements 5.19.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)], Phases: Phase 4, Phase 3, Phase 2 5.19.2 Sampling Location. [Minn. R. 7001.0150, subp. 2(B)] 5.19.3 Samples for Station WS 006 shall be taken at a point prior to entering Infiltration Trench C. Monitoring and reporting requirements for WS 006, identified as Phase 2 in the Limits and Monitoring table, become effective upon MPCA notification of the installation of flow monitoring equipment. [Minn. R. 7001.0150, subp. 2(B)] 5.19.4 The Permittee shall submit monitoring results in accordance with the limits and monitoring requirements for this station. If conditions are such that no sample can be acquired, the Permittee shall report "No Flow" or "No Discharge" on Discharge Monitoring Report (DMR) and shall add a Comments attachment to the DMR detailing why the sample was not collected. [Minn. R. 7001.0150, subp. 2(B)] MN0054119 Bliss Collector WWTP Groundwater Station General Requirements 5.20.1 Analysis Requirements. [Minn. R. 7001] 5.20.2 Temperature and pH analyses shall be conducted within 15 minutes of sample collection. [Minn. R. 7053] 5.20.3 Monitoring Wells. [Minn. R. 7001] 5.20.4 The Permittee shall install, maintain and abandon groundwater monitoring wells according to the Minnesota Water Well Construction Code, Minnesota Rules, ch. 4725. Damaged or improperly constructed monitoring wells shall be repaired or properly abandoned and replaced. Information on licensed water well contractors is available from the Minnesota Department of Health. [Minn. R. 4725] Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 13 of 41 5.20.5 The Permittee shall submit a detailed monitoring well log for each monitoring well at the facility and a detailed US Geological Survey topographical map identifying the location of each well upon installation or abandonment of any monitoring wells or as otherwise required. [Minn. R. 7001] 5.20.6 Each monitoring well shall be clearly numbered on the outside of the well with either indelible paint or an inscribed number. [Minn. R. 7001] 5.20.7 The monitoring wells shall be sampled in accordance with "Minnesota Pollution Control Agency, Water Quality Division: Sampling Procedures for Ground Water Monitoring Wells, July 1997, Reviewed and re-approved September 2006" or any updates to this document. A copy of this publication is available on the MPCA website at: http://www.pca.state.mn.us. [Minn. R. 7001] 5.20.8 Grab samples shall be collected at all ground water monitoring points (lysimeters or wells) after stabilization tests are conducted. [Minn. R. 7001] 5.20.9 Prior to well purging and sampling, depths to groundwater shall be measured to the nearest 0.01 foot below the top of the well casing, and groundwater elevations shall be reported to the nearest 0.01 foot above mean sea level. [Minn. R. 7001] 5.20.10 Temperature, specific conductance and pH shall be reported as the final field measurements from well stabilization. [Minn. R. 7001] Waste Stream Station General Requirements 5.21.11 Analysis Requirements. [Minn. R. 7001] 5.21.12 Temperature and pH analyses shall be conducted within 15 minutes of sample collection. [Minn. R. 7053] 5.21.13 Representative Samples. [Minn. R. 7001] 5.21.14 Grab and composite samples shall be collected at a point representative of total influent flow to the system. [Minn. R. 7001] 5.21.15 Nitrogen Limits and Monitoring Requirements. [Minn. R. 7001] 5.21.16 "Total Nitrogen" is to be reported as the summation of the Total Kjeldahl Nitrogen and Total Nitrite plus Nitrate Nitrogen values. [Minn. R. 7001] Compliance Schedule Requirements 5.22.17 The Permittee shall install flow monitoring equipment to monitor the amount of flow directed to each drainfield. The Permittee shall install equipment: Due by 180 days after permit issuance. [Minn. R. 7001] 5.22.18 Upon MPCA notification of the installation of flow monitoring equipment, monitoring and reporting requirements for WS 004, WS 005, and WS 006 will begin and Phase 2 limits and monitoring requirements will become effective. Flow directed to Infiltration Trench A will be reported at WS 004, flow directed to Infiltration Trench B will be reported at WS 005, and flow directed to Infiltration Trench C will be reported at WS 006. [Minn. R. 7001] 5.22.19 The Permittee shall submit a Facility Evaluation Report within one year of permit issuance. The report should summarize the effect of operational changes and nitrogen mitigation efforts on nitrogen treatment. The Permittee shall submit a report: Due by one year after permit issuance. [Minn. R. 7001] 5.22.20 The Facility Evaluation Report should include, but not be limited to: a. A timeline of operational changes and upgrades made to the facility. b. Flow data indicating total gallons per day of effluent applied to each drainfield. c. Testing results from process control samples taken before and after treatment. d. An assessment of the facility's ability to comply with a 10 mg/L Total Nitrite Plus Nitrate limit at the down gradient groundwater monitoring wells. e. Anticipated changes to flow volume or waste type in the next 10 years and an assessment of whether anticipated changes would affect the ability of the facility to comply with a 10 mg/L Total Nitrite Plus Nitrate limit. Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 14 of 41 f. A discussion of any facility upgrades necessary to comply with the 10 mg/L Total Nitrite Plus Nitrate limit. g. A proposed schedule for completion of the necessary upgrades. [Minn. R. 7001] 5.22.21 Upon submittal of the Facility Evaluation Report, the MPCA will confirm with the Permittee which Track shall be followed. Track 1: Attain compliance with final limits If the Facility Evaluation Report indicates the Permittee can comply with a 10 mg/L Total Nitrite Plus Nitrate limit at the down gradient monitoring wells, the Permittee shall replace monitoring well GW 008 and attain compliance with final limits. Track 2: Construction schedule to upgrade facility If the Permittee cannot comply with a 10 mg/L Total Nitrite Plus Nitrate limit at the down gradient monitoring wells, the Permittee will be required to upgrade the wastewater treatment facility and comply with a 10 mg/L Total Nitrogen limit prior to entering the drainfield. [Minn. R. 7001] 5.22.22 Track 1: Attain compliance with final limits. [Minn. R. 7001] 5.22.23 Within 180 days (six months) of submittal of the Facility Evaluation Report, the Permittee shall submit a Groundwater Monitoring Well Abandonment Plan (abandonment plan) for the abandonment and sealing of groundwater monitoring well GW 008; and a Groundwater Monitoring Well Installation Plan (installation plan) for the installation of GW 018 as a replacement monitoring well. [Minn. R. 7001] 5.22.24 Within 90 days (three months) of MPCA approval of the abandonment plan and installation plan, the Permittee shall abandon groundwater monitoring well GW 008 and install the new groundwater monitoring well GW 018. Abandonment must be conducted in accordance with the Minnesota Water Well Construction Code, Minnesota Rules, ch. 4725. [Minn. R. 7001] 5.22.25 Within 30 days of well abandonment, the Permittee shall submit a copy of the well abandonment records for GW 008 to the MPCA. [Minn. R. 7001] 5.22.26 Within 30 days of installation of GW 018, the Permittee shall submit a Groundwater Monitoring Well Installation Report. [Minn. R. 7001] 5.22.27 Upon MPCA notification of abandonment of GW 008 and installation of GW 018, Phase 2 limits and monitoring requirements for GW 008 will end and Phase 3 limits and monitoring requirements for GW 018 will become effective. [Minn. R. 7001] 5.22.28 Within 180 days (six months) of installation of the new well GW 018, the Permittee shall attain compliance with the 10 mg/L Total Nitrite Plus Nitrate limit at GW 004, GW 006, and GW 018, identified as Phase 4 in the Limits and Monitoring section of the permit. [Minn. R. 7001] 5.22.29 Track 2: Construction schedule to upgrade facility. [Minn. R. 7001] 5.22.30 Definitions. [Minn. R. 7001] 5.22.31 "Initiation of operation" means the date that MPCA determines all components of the wastewater treatment system are complete and functioning and the project begins operating for the purposes for which it was planned, designed, and built. [Minn. R. 7001] 5.22.32 "Completion of construction" means all the construction is complete except for minor weather- related components and conforms to the approved plans and specifications and change orders. [Minn. R. 7001] 5.22.33 "Notice to proceed" means a written notice given by the Permittee to the contractor that affixes the contract effective date and the date that the contractor begins performing the work specified in the contract documents. [Minn. R. 7001] 5.22.34 Schedule. [Minn. R. 7001] 5.22.35 Submit Facility Plan or Engineering Report. The Permittee shall submit a Facility Plan or Engineering Report by 365 days (one year) after submittal of the Facility Evaluation Report. If the Permittee is seeking public funding, a Facility Plan should be submitted and approvable, as determined by Minnesota Rule 7077.0272. The Facility Plan or Engineering Report should address Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 15 of 41 facility changes required to comply with a 10 mg/L Total Nitrogen limit prior to entering the drainfield. [Minn. R. 7001] 5.22.36 Modify the Permit. The Permittee shall submit an application and fee for permit modification by 365 days (one year) after submittal of the Facility Plan or Engineering Report. [Minn. R. 7001] 5.22.37 Submit Plans and Specifications. The Permittee shall submit Plans and Specifications for MPCA review and approval by 365 days (one year) after submittal of the Facility Plan or Engineering Report. The Plans and Specifications shall address the chosen alternative from the Facility Plan or Engineering Report. [Minn. R. 7001] 5.22.38 Submit Notice to Proceed. The Permittee shall submit a copy of the Notice to Proceed to the MPCA within 14 days of its execution. [Minn. R. 7001] 5.22.39 Commencement of Construction. The Permittee shall begin construction of the required improvements by 365 days (one year) after submittal of Plans and Specifications and shall notify the MPCA within 14 days of commencement. [Minn. R. 7001] 5.22.40 Submit Notice of Intent to Initiate Operation. The Permittee shall notify the MPCA in writing at least 14 days before the planned initiation of operation date. Following MPCA staff concurrence that the facility is adequately prepared, MPCA staff will notify the Permittee that it may initiate operation of the new or upgraded facility. [Minn. R. 7001] 5.22.41 Submit Initiation of Operation Date. The Permittee shall notify the MPCA in writing within 14 days after the actual initiation of operation date. The Permittee shall comply with all permit requirements and attain final limits within 90 days of the Initiation of Operation date. [Minn. R. 7001] 5.22.42 Submit Notice to Complete Construction. The Permittee shall notify the MPCA in writing at least 14 days before the planned completion of construction date. The MPCA may complete a final inspection. [Minn. R. 7001] 5.22.43 Submit Final Technical Documents. The Permittee shall submit the following to the MPCA within one year after the initiation of operation date: a. An MPCA-approved certification form that is signed by a professional engineer registered in the state of Minnesota stating that the project meets the performance standards. b. A revised operation and maintenance manual or a maintenance plan; or a certificate of completion of an operation and maintenance manual on a form prescribed by the MPCA. At a minimum, this plan shall include a detailed discussion of operation and controls, maintenance, sampling and analysis, problem mitigation, VOC management, personnel records and reporting, and safety. This plan shall be maintained and updated regularly and made available to the MPCA staff upon request. c. A system effectiveness evaluation that summarizes the effectiveness of the treatment facility (including any applicable groundwater monitoring system) as detailed in the plan and specifications approval letter or through communication with the MPCA staff. d. One copy of "as-built" plans and specifications, also known as record drawings, shall be submitted in a format approved by the MPCA. The factsheet titled: "Wastewater Treatment Facility Construction Record Documents, As-built Submittal Requirements" contains specific information regarding the required format of the submittal. The document is located on the MPCA web page at: http://www.pca.state.mn.us/index.php/view-document.html?gid=15492. [Minn. R. 7001] Large Subsurface Treatment System (LSTS) 5.23.44 Unauthorized Discharge. [Minn. R. 7001] 5.23.45 There shall be no unauthorized discharge to the ground surface or surface water from these facilities. [Minn. R. 7001.0030] Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 16 of 41 5.23.46 Prohibitions. [Minn. R. 7001] 5.23.47 The Permittee shall prevent the discharge of any wastes other than sewage into any component of the facility, including septic tanks, advanced treatment systems, and soil treatment systems that could result in damage to the treatment facility or inhibit treatment unless the discharge of such other substances is specifically approved in writing by the MPCA. [Minn. R. 7001] 5.23.48 Sanitary Sewer Extension Permit. [Minn. R. 7001] 5.23.49 The Permittee may be required to obtain a Sanitary Sewer Extension Permit from the MPCA for any addition, extension or replacement to the sanitary sewer. If a sewer extension permit is required, construction may not begin until plans and specifications have been submitted and a written permit is granted except as allowed in Minn. Stat. 115.07, Subd. 3(b). [Minn. R. 7001.0020, D] 5.23.50 Operator Certification. [Minn. R. 7001] 5.23.51 The Permittee shall provide a Class D state certified operator who is in direct responsible charge of the operation, maintenance and testing functions required to ensure compliance with the terms and conditions of this permit. In addition, the certified operator shall maintain a current Service Provider Certification. [Minn. R. 9400] 5.23.52 The Permittee shall provide the appropriate number of operators with a Type IV certification to be responsible for the land application of biosolids or semisolids from commercial or industrial operations. [Minn. R. 7048] 5.23.53 If the Permittee chooses to meet operator certification requirements through a contractual agreement, the Permittee shall provide a copy of the contract to the MPCA, WQ Submittals Center. The contract shall include the certified operator's name, certificate number, service provider certification number, company name if appropriate, the period covered by the contract and provisions for renewal; the duties and responsibilities of the certified operator; the duties and responsibilities of the permittee; and provisions for notifying the MPCA 30 days in advance of termination if the contract is terminated prior to the expiration date. [Minn. R. 9400] 5.23.54 The Permittee shall notify the MPCA within 30 days of a change in operator certification or contract status. [Minn. R. 9400] 5.23.55 Special Requirements. [Minn. R. 7001] 5.23.56 Special Condition - Update O & M Manual. [Minn. R. 7001] 5.23.57 The Permittee is required to have on-site and available an updated Operation and Maintenance manual. This manual shall be available to MPCA staff upon request. [Minn. R. 7001.0150, subp. 3(F)] 5.23.58 Facility Maintenance. [Minn. R. 7001] 5.23.59 The facility shall be adequately protected to prevent damage. [Minn. R. 7001.0150, subp. 3(F)] 5.23.60 Collection System. [Minn. R. 7001] 5.23.61 The collection system shall be properly maintained to minimize inflow, infiltration, exfiltration, and obstructions. A record of all inspections and maintenance operations shall be kept by the Permittee for a minimum of three years. [Minn. R. 7001.0150, subp. 3(F)] 5.23.62 Tank Maintenance. [Minn. R. 7001] 5.23.63 All tanks (primary, secondary, holding, dosing, individual, etc.) associated with this system shall be operated, pumped and maintained to ensure proper system operation and solids management. After every pumping event, all tanks shall be inspected for potential failure (such as cracks, roots, damaged baffles, etc.). Identified problems shall be corrected immediately. [Minn. R. 7001.0150, subp. 3(F)] 5.23.64 The owner of a septic tank or tanks or the owner's agent shall arrange for the removal and proper disposal of septage from all tanks or compartments in which the top of the sludge layer is less than 12 inches below the bottom of the outlet baffle or whenever the bottom of the scum layer is less than three inches above the outlet baffle. All accumulations of sludge, scum, and liquids shall be removed through the maintenance hole. [Minn. R. 7001.0150, subp. 3(F)] 5.23.65 The Permittee shall properly clean the effluent screens as often as needed to maintain an adequate flow rate from the septic tank(s). The Permittee shall keep a record at the facility that indicates the dates that the effluent screens are inspected, removed and cleaned. [Minn. R. 7001.0150, subp. 3(F)] Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 17 of 41 5.23.66 Tanks that are not specifically covered under the Limits & Monitoring section of this permit shall be inspected at least every three years and pumped as necessary unless more restrictive local requirements have been established. [Minn. R. 7001.0150, subp. 3(F)] 5.23.67 Soil Treatment System Maintenance. [Minn. R. 7001] 5.23.68 The soil treatment system(s) shall be adequately fenced. [Minn. R. 7001.0150, subp. 3(F)] 5.23.69 A dense vegetative cover shall be maintained over the soil treatment system(s) at all times during the growing season to prevent the growth of unwanted vegetation such as trees, deep rooted nuisance plants, aquatic vegetation and to prevent erosion. [Minn. R. 7001.0150, subp. 3(F)] 5.23.70 Routine maintenance shall be conducted to discourage the presence of rodents and other burrowing animals and deer on the soil treatment system and to allow inspection of observation ports installed in the soil treatment system(s) inspection pipes. [Minn. R. 7001.0150, subp. 3(F)] 5.23.71 Soil Treatment System Inspection. [Minn. R. 7001] 5.23.72 Ponding depth inspections to determine the condition of each soil treatment system (trench, bed, at-grade, mound, or drip dispersal) /drainfield standpipe shall be conducted every other month during the time the soil treatment system is in use. The inspection of each soil treatment system shall include the identification of wet or saturated areas, depth of effluent ponding in the soil treatment observation ports, evidence of effluent at the surface, frozen components, and measurements in piezometers (if installed). Visual observations shall be recorded and inspection records shall be maintained by the owner for a minimum of three years following each inspection. The results of the inspection are not required to be submitted to the MPCA but shall be made available upon request by MPCA staff. [Minn. R. 7001.0150, subp. 3(F)] 5.23.73 Indications of excessive hydraulic and organic loading to the wastewater treatment facility flow rate include ineffective septic tanks or advanced treatment systems, prolonged saturated soil conditions, vegetative drowning or excessive ground water mounding (observed from piezometers) and exceeding daily permitted flow rates as indicated by flow meters, event counters and running time clocks. [Minn. R. 7001.0150, subp. 3(F)] 5.23.74 Reserve Soil Treatment System. [Minn. R. 7001] 5.23.75 The reserve area for the soil treatment system/drainfield shall be properly protected to prevent the use of, and damage to, the area. The reserve area shall be posted and identified for the public with at least one sign designating its future purpose and the boundaries shall be visibly staked at all corners. In no case may this area be disturbed for any purpose, including vehicle traffic, storage, bike, hiking or ATV trails, playing fields, etc. [Minn. R. 7001.0150, subp. 3(F)] Pretreatment: Undelegated Requirements 5.24.76 Pretreatment - Definitions. [Minn. R. 7049] 5.24.77 An "Individual Control Mechanism" is a document, such as an agreement or permit, that imposes limitations or requirements on an individual industrial user of the POTW. [Minn. R. 7049] 5.24.78 "Significant Industrial User" (SIU) means any industrial user that: a. discharges 25,000 gallons per day or more of process wastewater; b. contributes a load of five (5) % or more of the capacity of the POTW; or c. is designated as significant by the Permittee or the MPCA on the basis that the SIU has a reasonable potential to adversely impact the POTW, or the quality of its effluent or residuals. [Minn. R. 7049] 5.24.79 Pretreatment - Permittee Responsibility to Control Users. [Minn. R. 7049] 5.24.80 It is the Permittee's responsibility to regulate the discharge from users of its wastewater treatment facility. The Permittee shall prevent any pass through of pollutants or any inhibition or disruption of the Permittee's facility, its treatment processes, or its sludge processes or disposal that contribute to the violation of the conditions of this permit or any federal or state law or regulation limiting the release of pollutants from the POTW. [Minn. R. 7049] 5.24.81 The Permittee shall prohibit the discharge of the following to its wastewater treatment facility: Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 18 of 41 a. pollutants which create a fire or explosion hazard, including any discharge with a flash point less than 60 degrees C (140 degrees F); b. pollutants which would cause corrosive structural damage to the POTW, including any waste stream with a pH of less than 5.0; c. solid or viscous pollutants which would obstruct flow; d. heat that would inhibit biological activity, including any discharge that would cause the temperature of the waste stream at the POTW treatment plant headwork's to exceed 40 degrees C (104 degrees F); e. pollutants which produce toxic gases, vapors, or fumes that may endanger the health or safety of workers; or f. any pollutant, including oxygen demanding pollutants such as biochemical oxygen demand, released at a flow rate or pollutant concentration that will cause interference or pass through. [Minn. R. 7049] 5.24.82 The Permittee shall prohibit new discharges of non-contact cooling waters unless there is no cost effective alternative. Existing discharges of non-contact cooling water to the Permittee's wastewater treatment facility shall be eliminated, where elimination is cost-effective, or where an infiltration/inflow analysis and sewer system evaluation survey indicates the need for such removal. [Minn. R. 7049] 5.24.83 If the Permittee accepts trucked-in wastes, the Permittee shall evaluate the trucked in wastes prior to acceptance in the same manner as it monitors sewered wastes. The Permittee shall accept trucked-in wastes only at specifically designated points. [Minn. R. 7049] 5.24.84 Pollutant of concern means a pollutant that is or may be discharged by an industrial user that is, or reasonably should be of concern on the basis that it may cause the permittee to violate any permit limits on the release of pollutants. The following pollutants shall be evaluated to determine if they should be pollutants of concern: pollutants limited in this permit, pollutants for which monitoring is required in this permit, pollutants that are likely to cause inhibition of the Permittee's POTW, pollutants which may interfere with sludge disposal, and pollutants for which the Permittee's treatment facility has limited capacity. [Minn. R. 7049] 5.24.85 Control of Significant Industrial Users. [Minn. R. 7049] 5.24.86 The Permittee shall impose pretreatment requirements on SIUs which will ensure compliance with all applicable effluent limitations and other requirements set forth in this permit or any federal or state law or regulation limiting the release of pollutants from the POTW. These requirements shall be applied to SIUs by means of an individual control mechanism. [Minn. R. 7049] 5.24.87 The Permittee shall not knowingly enter into an individual control mechanism with any user that would allow the user to contribute an amount or strength of wastewater that would cause violation of any limitation or requirement in the permit, or any applicable federal, state or local law or regulation. [Minn. R. 7049] 5.24.88 Monitoring of Significant Industrial Users. [Minn. R. 7049] 5.24.89 The Permittee shall obtain from SIUs specific information on the quality and quantity of the SIU's discharges to the Permittee's POTW. Except where specifically requested by the Permittee and approved by the MPCA, this information shall be obtained by means of representative monitoring conducted by the Permittee or by the SIU under requirements imposed by the Permittee in the SIU's individual control mechanism. Monitoring performed to comply with this requirement shall include all pollutants for which the SIU is significant and shall be done at a frequency commensurate with the significance of the SIU. [Minn. R. 7049] 5.24.90 Reporting and Notification. [Minn. R. 7049] 5.24.91 The Permittee shall submit a pretreatment annual report, due by 31 days after the end of each calendar year following permit issuance if a SIU discharges to the POTW during a given calendar year. [Minn. R. 7049] 5.24.92 The Pretreatment Annual Report shall be submitted on forms provided by the agency or shall provide equivalent information. The Permittee shall submit the pre-treatment report to the following address: Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 19 of 41 MPCA Attn: WQ Submittals Center 520 Lafayette Road North St. Paul, Minnesota 55155-4194. [Minn. R. 7049] 5.24.93 The Permittee shall notify the MPCA in writing of any: a. SIU of the Permittee's POTW which has not been previously disclosed to the MPCA; b. anticipated or actual changes in the volume or quality of discharge by an industrial user that could result in the industrial user becoming an SIU as defined in this chapter; or c. anticipated or actual changes in the volume or quality of discharges by a SIU that would require changes to the SIU's required local limits. This notification shall be submitted within 30 days of identifying the IU as a SIU. Where changes are proposed, they shall be submitted prior to changes being made. [Minn. R. 7049] 5.24.94 Upon notifying the MPCA of a SIU or change in a SIU discharge as required above, the Permittee shall submit the following information on forms provided by the agency or in a comparable format: a. the identity of the SIU and a description of the SIU's operation and process; b. a characterization of the SIU's discharge; c. the required local limits that will be imposed on the SIU; d. a technical justification of the required local limits; and e. a plan for monitoring the SIU which is consistent with monitoring requirements in this chapter. [Minn. R. 7049] 5.24.95 In addition, the Permittee shall, upon request, submit the following to the MPCA for approval: a. additional information on the SIU, its processes and discharge; b. a copy of the individual control mechanism used to control the SIU; c. the Permittee's legal authority to be used for regulating the SIU; and d. the Permittee's procedures for enforcing the requirements imposed on the SIU. [Minn. R. 7049] 5.24.96 The Permittee shall notify MPCA of any of its industrial users that may be subject to national categorical pretreatment standards. [Minn. R. 7049] 5.24.97 This permit may be modified in accordance with Minnesota Rules, ch. 7001 to require development of a pretreatment program approvable under the Federal General Pretreatment Regulation (40 CFR 403). [Minn. R. 7049] Biosolids: Domestic Septage (No Analysis Required) 5.25.98 Authorization. [Minn. R. 7041] 5.25.99 This permit authorizes the Permittee to store and land apply domestic wastewater treatment septage that is defined as biosolids in accordance with the provisions in this chapter and Minn. R. ch. 7041. The conditions for septage treatment and application described in this chapter apply only to septage from domestic residences as described in the permit application. For the purpose of this permit chapter, solids collected in septic tanks are referred to as biosolids. If any commercial or industrial user is added to this permitted facility, the MPCA shall be notified before adding that user to the facility so that appropriate monitoring, treatment and disposal of the septage can be determined. Based on that determination, the Permittee may be required to apply and pay for a permit modification. [Minn. R. 7041] 5.25.100 Permittees who prepare bulk biosolids shall obtain approval of the sites on which bulk biosolids are applied before they are applied unless they are Exceptional Quality Biosolids. Site application procedures are set forth in Minn. R. ch. 7041.0800. [Minn. R. 7041.800] 5.25.101 Compliance Responsibility. [Minn. R. 7041] 5.25.102 The Permittee is responsible for ensuring that the applicable requirements in this chapter and Minn. R. ch. 7041 are met when biosolids are prepared, distributed, or applied to the land. [Minn. R. 7041] Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 20 of 41 5.25.103 Notification Requirements. [Minn. R. 7041] 5.25.104 The Permittee shall provide information needed to comply with the biosolids requirements of Minn. R. ch. 7041 to others who prepare or use the biosolids. [Minn. R. 7041] 5.25.105 Pathogen and Vector Attraction Reduction. [Minn. R. 7041] 5.25.106 Biosolids shall be processed, treated, or be incorporated or injected into the soil to meet pathogen and vector attraction reduction requirements in Minn. R. ch. 7041.1800, subp. 3, items a, b, or c as follows: a. the pH of the septage shall be raised to 12 or higher for 30 minutes by alkali addition and, without the addition of more alkali, shall remain at 12 or higher for 30 minutes; b. the septage is injected and no significant amount of the septage is present on the land surface within one hour after it is injected, or c. the septage is incorporated below the surface of the land within six hours after surface application. [Minn. R. 7041.1800, subp. 3] 5.25.107 The minimum duration between application and harvest, grazing or public access to areas where biosolids have been applied to the land is as follows: a. 14 months for food crops whose harvested parts may touch the soil/biosolids mixture (such as melons, squash, tomatoes, etc.), when biosolids are surface applied, incorporated or injected. b. 20 months or 38 months depending on the application method for food crops whose harvested parts grow in the soil (such as potatoes, carrots, onions, etc.). The 20 month time period is required when biosolids are surface applied or surface applied and incorporated after they have been on the soil surface for at least four (4) months. The 38 month time period is required when the biosolids are injected or surface applied and incorporated within four (4) months of application. c. 30 days for feed crops, other food crops (such as field corn, sweet corn, etc.), hay or fiber crops when biosolids are surface applied, incorporated or injected. d. 30 days for grazing of animals when biosolids are surface applied, incorporated or injected. e. One year where there is a high potential for public contact with the site, (such as a reclamation site located in populated areas, a construction site located in a city, turf farms, plant nurseries, etc.) and 30 days where there is low potential for public contact (such as agricultural land, forest, a reclamation site located in an unpopulated area, etc.) when biosolids are surface applied, incorporated, or injected. [Minn. R. 7041] 5.25.108 Management Practices. [Minn. R. 7041] 5.25.109 The management practices for the land application of biosolids are described in detail in Minn. R. ch. 7041.1200 and shall be followed unless specified otherwise in a site approval letter or a permit issued by the MPCA. [Minn. R. 7041.1200] 5.25.110 Overall management requirements: a. Biosolids shall not be applied to the land if it is likely to adversely affect a threatened or endangered species listed under Section 4 of the Endangered Species Act or its designated critical habitat. b. Biosolids shall not be applied to flooded, frozen or snow covered ground so that the biosolids enter wetlands or other waters of the state. c. Biosolids shall be applied at an agronomic rate. The Agronomic application rate for septage applied to agricultural land, forest, or a reclamation site for a cropping year shall be calculated using the following equation unless determined otherwise by the MPCA. AR = N / 0.0026 Where: AR = Application rate in gallons per acre for the cropping year. N = The maximum available nitrogen application rate in pounds per acre per cropping year required by the crop based on realistic yield goals or nitrogen uptake by vegetation grown on the land minus the amount supplied by other sources such as manure or fertilizer. Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 21 of 41 d. Biosolids shall not be applied within 33 feet of a wetland or waters of the state unless specified otherwise by the MPCA in a permit. [Minn. R. 7041] 5.25.111 Records. [Minn. R. 7041] 5.25.112 The Permittee shall obtain and keep on record items a. through g. for five years and items h. through j. indefinitely: a. The following certification statement for all septage applied to the land: "I certify, under penalty of law, that the information that will be used to determine compliance with the pathogen and vector attraction reduction requirements in part 7041.1800, subp. 3 ____[insert either item a, b, or c], the management practices in part 7041.1200, and the site restrictions in part 7041.1300, subpart 3, item D, has been prepared under my direction and supervision according to the system designed to ensure that qualified personnel properly gather and evaluate the information used to determine that the pathogen and vector attraction reduction requirements have been met. I am aware that there are significant penalties for false certification including the possibility of fine and imprisonment."; b. a description of how the pathogen and vector attraction reduction requirements are met. If alkali addition is used, records shall indicate each container of septage applied is monitored for compliance with subp. 3, item a; c. a description of how management practices and site restrictions are met; d. a record of soil test data as required by part 7041.0800, site approvals, or permits; e. the maximum available nitrogen application rate based on the realistic yield goal of the crop or vegetation grown on the site during the cropping year; f. the number of acres used; g. any other analysis or information required by the MPCA; h. the legal description of the land application site; i. the amount and date of septage applied in gallons per acre and the cumulative dry tons per acre; and j. the amount of arsenic, cadmium, copper, lead, mercury, molybdenum, nickel, selenium, and zinc applied each cropping year and cumulatively expressed in pounds per acre. [Minn. R. 7041] 5.25.113 Reporting Requirements. [Minn. R. 7041] 5.25.114 The Permittee shall submit a biosolids annual report: Due annually, by the 31st of December on a form provided by or approved by the MPCA. The report shall include the requirements in Minnesota Rules, part 7041.1700. [Minn. R. 7041] 5.25.115 The Permittee shall submit a Biosolids Annual Report by December 31 of each year for biosolids storage and/or transfer activities occurring during the cropping year previous to December 31. The report shall indicate whether or not biosolids were transferred and/or stored. If biosolids were transferred, the report shall describe how much was transferred, where it was transferred to, the name of the facility that accepted the transfer and the contact person at that facility. "Cropping year" means a year beginning on September 1 of the year prior to the growing season and ending August 31 the year the crop is harvested. For example, the 2012 cropping year began September 1, 2011, and ended August 31, 2012. [Minn. R. 7041] 5.25.116 The Permittee shall submit the Biosolids Annual Report to: MPCA Submittals Center Minnesota Pollution Control Agency 520 Lafayette Road North St. Paul, Minnesota 55155-4194. [Minn. R. 7041] Total Facility Requirements (SDS) 5.26.117 No Discharge. There shall be no point source discharge to surface water from the permitted activity. [Minn. R. 7001] 5.26.118 Definitions. Refer to the Permit User's Manual found on the MPCA's website (https://www.pca.state.mn.us) for standard definitions. [Minn. R. 7001] Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 22 of 41 5.26.119 Incorporation by Reference. This permit incorporates the following applicable federal and state laws applicable to the Permittee and enforceable parts of this permit: 40 CFR pts. 122.41, 122.42, 136, 403 and 503; Minn. R. chs. 7001, 7041, 7045, 7050, 7052, 7053, 7060, and 7080; and Minn. Stat. chs. 115 and 116. [Minn. R. 7001] 5.26.120 Permittee Responsibility. The Permittee shall perform the actions or conduct the activity authorized by this permit in compliance with the conditions of the permit and, if required, in accordance with the plans and specifications approved by the MPCA. [Minn. R. 7001.0150, subp. 3(E)] 5.26.121 Toxic Discharges Prohibited. Whether or not this permit includes effluent limitations for toxic pollutants, the Permittee shall not discharge a toxic pollutant except according to 40 CFR pts. 400 to 460 and Minn. R. chs. 7050, 7052, 7053 and any other applicable MPCA rules. [Minn. R. 7001.1090, subp. 1(A)] 5.26.122 Nuisance Conditions Prohibited. The Permittee's discharge shall not cause any nuisance conditions including, but not limited to: floating solids, scum and visible oil film, excessive suspended solids, material discoloration, obnoxious odors, gas ebullition, deleterious sludge deposits, undesirable slimes or fungus growths, aquatic habitat degradation, excessive growths of aquatic plants, acutely toxic conditions to aquatic life, or other adverse impact on the receiving water. [Minn. R. 7050.0210, subp. 2] 5.26.123 Property Rights. This permit does not convey a property right or an exclusive privilege. [Minn. R. 7001.0150, subp. 3(C)] 5.26.124 Liability Exemption. In issuing this permit, the State and the MPCA assume no responsibility for damage to persons, property, or the environment caused by the activities of the Permittee in the conduct of its actions, including those activities authorized, directed, or undertaken under this permit. To the extent the State and the MPCA may be liable for the activities of its employees, that liability is explicitly limited to that provided in the Tort Claims Act. [Minn. R. 7001.0150, subp. 3(O)] 5.26.125 The MPCA's issuance of this permit does not obligate the MPCA to enforce local laws, rules, or plans beyond what Minnesota statutes authorize. [Minn. R. 7001.0150, subp. 3(D)] 5.26.126 Liabilities. The MPCA's issuance of this permit does not release the Permittee from any liability, penalty, or duty imposed by Minnesota or federal statutes or rules or local ordinances, except the obligation to obtain the permit. [Minn. R. 7001.0150, subp. 3(A)] 5.26.127 The issuance of this permit does not prevent the future adoption by the MPCA of pollution control rules, standards, or orders more stringent than those now in existence and does not prevent the enforcement of these rules, standards, or orders against the Permittee. [Minn. R. 7001.0150, subp. 3(B)] 5.26.128 Severability. The provisions of this permit are severable and, if any provisions of this permit or the application of any provision of this permit to any circumstance are held invalid, the application of such provision to other circumstances and the remainder of this permit shall not be affected thereby. [Minn. R. 7001] 5.26.129 Compliance with Other Rules and Statutes. The Permittee shall comply with all applicable air quality, solid waste, and hazardous waste statutes and rules in the operation and maintenance of the facility. [Minn. R. 7001] 5.26.130 Inspection and Entry. When authorized by Minn. Stat. ch. 115.04, 115B.17, subd. 4, and 116.091, and upon presentation of proper credentials, the Permittee shall allow the MPCA, or an authorized employee or agent of the MPCA, to enter at reasonable times upon the property of the Permittee to examine and copy books, papers, records, or memoranda pertaining to the construction, modification, or operation of the facility covered by the permit or pertaining to the activity covered by the permit; and to conduct surveys and investigations, including sampling or monitoring, pertaining to the construction, modification, or operation of the facility covered by the permit or pertaining to the activity covered by the permit. [Minn. R. 7001.0150, subp. 3(I)] 5.26.131 Control Users. The Permittee shall regulate the users of its facility to prevent the introduction of pollutants or materials that may result in the inhibition or disruption of the conveyance system, treatment facility or processes, or disposal system that would contribute to the violation of the conditions of this permit or any federal, state, or local law or regulation. [Minn. R. 7001.0150, subp. 3(F)] Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 23 of 41 5.26.132 Sampling. [Minn. R. 7001] 5.26.133 Representative Sampling. The Permittee shall conduct samples and measurements required by this permit as specified in this permit and shall be representative of the discharge or monitored activity. [Minn. R. 7001.0150, subp. 2(B)] 5.26.134 Additional Sampling. If the Permittee monitors more frequently than required, they shall report the results and the frequency of monitoring on their eDMR for that reporting period. [Minn. R. 7001.1090, subp. 1(E)] 5.26.135 Certified/Accredited Laboratory. A laboratory accredited by the Minnesota Department of Health [Minn. R. 4740.2010 through Minn. R. 4740.2120] and/or certified by the MPCA [Minn. R. 7001.4310 through Minn. R. 7001.4390] shall conduct analyses required by this permit, unless approved in writing by the MPCA. A certified/accredited laboratory does not need to complete analyses of dissolved oxygen, pH, temperature, specific conductance, and total residual oxidants (chlorine, bromine). Those analyses shall comply with 40 CFR pt. 136. Dissolved oxygen, pH, and total residual oxidants must be performed on-site. Follow the manufacturer's specifications for equipment maintenance and use. [Minn. R. 4740.2010-4740.2120, Minn. R. 7001.4310-7001.4390] 5.26.136 Sample Preservation and Procedure. Sample preservation and test procedures for the analysis of pollutants shall conform to 40 CFR pt. 136 and Minn. R. 7041.3200. [Minn. R. 7001.0150, subp. 2(B), Minn. R. 7041.3200] 5.26.137 Equipment Calibration. The Permittee shall check and/or calibrate flow meters, pumps, flumes, lift stations, or other flow monitoring equipment used for purposes of determining compliance (within plus or minus ten percent of the true flow values) with permit requirements at least twice annually. [Minn. R. 7001.0150, subp. 2(B & C)] 5.26.138 Maintain Records. The Permittee shall keep the records required by this permit for at least three years, including any calculations, original recordings from automatic monitoring instruments, and laboratory sheets. The Permittee shall extend these record retention periods upon request of the MPCA. The Permittee shall maintain records for each sample and measurement. The records shall include the following information: A. The exact place, date, and time of the sample or measurement; B. The date of analysis; C. The name of the person who performed the sample collection, measurement, analysis, or calculation; D. The analytical techniques, procedures, and methods used; and E. The results of the analysis. [Minn. R. 7001.0150, subp. 2(C)] 5.26.139 Completing Reports. The Permittee shall submit the results of the required sampling and monitoring activities on the forms provided, specified, or approved by the MPCA. The Permittee shall record the information in the specified areas on those forms and in the units specified. Required forms may include a Sample Values Form. If required, the Permittee shall record individual values for each sample and measurement on the Sample Values Form provided by the MPCA. The Permittee shall submit Sample Values Form with the appropriate eDMRs. The Permittee may design and use their own Sample Values Form; however, the Permittee shall not use their form until the MPCA reviews and approves the form. Note: The Permittee shall also record required summary information on their eDMR. Permittee submitted summary information contained only on the Sample Values Form does not comply with reporting requirements. [Minn. R. 7001.0150, subp. 2(B), Minn. R. 7001.1090, subp. 1(D)] 5.26.140 Submitting Reports. The Permittee shall submit eDMRs, Sample Values Forms, and other supplemental attachment forms via MPCA e-Services after the MPCA approves their authorization request. The Permittee shall electronically submit eDMRs, Sample Values Forms, and other supplemental attachment forms by the 21st day of the month following the sampling period or otherwise as specified in this permit. The Permittee shall complete eDMR submittal on or before 11:59 PM of Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 24 of 41 the 21st day of the month following the sampling period or as otherwise specified in this permit. The Permittee shall submit an eDMR for each required station even if no discharge occurred during the reporting period. The Permittee shall submit other reports required by this permit electronically or by mail. The Permittee shall submit reports by the date specified in this permit. For electronic submittals, the Permittee shall submit on or before 11:59 PM on the date specified in this permit. For mailed submittals, the Permittee shall ensure that submittals via U.S. Postal Service or other hand delivery method contain postmarks by the date specified in this permit. Whole Effluent Testing (WET) and Pretreatment Annual Reports must be mailed to the WQ Submittals Center. Electronically: wq.submittals.mpca@state.mn.us Include Water quality submittals form: www.pca.state.mn.us/sites/default/files/wq-wwprm7- 71.docx Or by mail: Attention: WQ Submittals Center Minnesota Pollution Control Agency 520 Lafayette Road North St. Paul, Minnesota 55155-4191. [Minn. R. 7001.0150, subp. 2(B), Minn. R. 7001.0150, subp. 3(H)] 5.26.141 Incomplete or Incorrect Reports. The Permittee shall immediately submit an electronically amended report or eDMR to the MPCA upon discovery by the Permittee or notification by the MPCA that it has submitted an incomplete or incorrect report or eDMR. The amended report or eDMR shall contain the missing or corrected data along with a comment on the eDMR explaining the circumstances of the incomplete or incorrect report. If it is impossible to amend the report or eDMR electronically, the Permittee shall immediately notify the MPCA and the MPCA will provide direction for the amendment submittals. [Minn. R. 7001.0150, subp. 3(G)] 5.26.142 Required Signatures. The Permittee or the duly authorized representative of the Permittee shall sign all eDMRs, forms, reports, and other documents submitted to the MPCA per Minn. R. 7001.0150, subp. 2(D). The person or persons who sign the eDMRs, forms, reports, or other documents shall certify that he or she understands and complies with the certification requirements of Minn. R. chs. 7001.0070 and 7001.0540, including the penalties for submitting false information. A registered professional engineer shall certify technical documents, such as design drawings and specifications, and engineering studies submitted as part of a permit application or by permit conditions. [Minn. R. 7001.0540] 5.26.143 Reporting Limit (RL). The Permittee shall report monitoring results below the RL of a particular instrument as "<" the value of the RL. For example, if an instrument has a RL of 0.1 mg/L and a parameter is not detected at a value of 0.1 mg/L or greater, the Permittee shall report the concentration as "< 0.1 mg/L." The Permittee shall not use "non-detected," "undetected," "below detection limit," or "zero" when reporting results. The MPCA considers these terms as permit reporting violations. Where sample values are less than the RL and the permit requires reporting of an average, the Permittee shall calculate the average as follows: A. If some values are less than (<) the RL, substitute zero for all non-detectable values to use in the average calculation; B. If all values are less than (<) the RL, calculate the average and report as < the RL average concentration; and C. To calculate a mass loading with a less than (<) the RL concentration, use the RL value in the calculation and then add the "<" to the product of the concentration and the volume. [Minn. R. 7001.0150, subp. 2(B)] Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 25 of 41 5.26.144 Records. The Permittee shall, when requested by the MPCA, submit within a reasonable time the information and reports that are relevant to the control of pollution regarding the construction, modification, or operation of the facility covered by the permit or regarding the conduct of the activity covered by the permit. [Minn. R. 7001.0150, subp. 3(H)] 5.26.145 Confidential Information. Except for data determined to be confidential according to Minn. Stat. ch. 116.075, subd. 2, all reports required by this permit are available for public inspection. The MPCA does not consider effluent data confidential. To request the MPCA maintain data as confidential, the Permittee shall follow Minn. R. 7000.1300. [Minn. R. 7000.1300] 5.26.146 Noncompliance and Enforcement. [Minn. R. 7001] 5.26.147 Subject to Enforcement Action and Penalties. Noncompliance with a term or condition of this permit subjects the Permittee to penalties provided by federal and state law set forth in section 309 of the Clean Water Act; United States Code, title 33, section 1319, as amended; and in Minn. Stat. ch. 115.071 and 116.072, including monetary penalties, imprisonment, or both. [Minn. R. 7001.1090, subp. 1(B)] 5.26.148 Criminal Activity. The Permittee shall not knowingly make a false statement, representation, or certification in a record or other document submitted to the MPCA. A person who falsifies a report or document submitted to the MPCA, or tampers with, or knowingly renders inaccurate a monitoring device or method that requires maintenance under this permit is subject to criminal and civil penalties provided by federal and state law. [Minn. R. 7001.0150, subp. 3(G), Minn. R. 7001.1090, subp. 1(G & H), Minn. Stat. ch. 609.671, subd. 1] 5.26.149 Noncompliance Defense. It shall not be a defense for the Permittee in an enforcement action that it would have been necessary to halt or reduce the permitted activity in order to maintain compliance with the conditions of this permit. [40 CFR 122.41(c)] 5.26.150 Effluent Violations. If sampling by the Permittee indicates a violation of any discharge limitation specified in this permit, the Permittee shall immediately make every effort to verify the violation by collecting additional samples, if appropriate, investigate the cause of the violation, and take action to prevent future violations. If the Permittee discovers that noncompliance with a condition of the permit occurred and that the noncompliance could endanger human health, public drinking water supplies, or the environment, the Permittee shall within 24 hours of the discovery of the noncompliance orally notify the Commissioner and submit a written description of the noncompliance within five days of the discovery. If the Permittee discovers other noncompliance that does not explicitly endanger human health, public drinking water supplies, or the environment, the Permittee shall report the description of noncompliance within 30 days of the discovery. If no eDMR is required within 30 days, the Permittee shall submit a written report including the description of noncompliance within 30 days of the discovery of the noncompliance. This description shall include the following information: A. A description of the event including volume, duration, monitoring results, and receiving waters; B. The cause of the event; C. The steps taken to reduce, eliminate, and prevent reoccurrence of the event; D. The exact dates and times of the event; and E. Steps taken to reduce any adverse impact resulting from the event. [Minn. R. 7001.0150, subp. 3(K)] 5.26.151 Upset Defense. In the event of temporary noncompliance with applicable effluent limitation(s) resulting from an upset at the Permittee's facility due to factors beyond the control of the Permittee, the Permittee has an affirmative defense to an enforcement action brought by the MPCA as a result of the noncompliance if the Permittee demonstrates by a preponderance of competent evidence: A. The specific cause of the upset; B. That the upset was unintentional; Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 26 of 41 C. That the upset resulted from factors beyond the reasonable control of the Permittee and did not result from operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventative maintenance, or increases in production which are beyond the design capability of the treatment facilities; D. That at the time of the upset the facility was being properly operated; E. That the Permittee properly notified the Commissioner of the upset in accordance with Minn. R. 7001.1090, subp. 1(I); and F. That the Permittee implemented the remedial measures required by Minn. R. 7001.0150, subp. 3(J). [Minn. R. 7001.1090] 5.26.152 Release. [Minn. R. 7001] 5.26.153 Unauthorized Releases of Wastewater Prohibited. This permit prohibits overflows, discharges, spills, or other releases of wastewater or materials to the environment, whether intentional or not, except for discharges from outfalls specifically authorized by this permit. The MPCA will consider the Permittee's compliance with permit requirements, frequency of release, quantity, type, location, and other relevant factors when determining appropriate action. [40 CFR 122.41, Minn. Stat. ch. 115.061] 5.26.154 Discovery of a Release. Upon discovery of a release, the Permittee shall: A. Take all reasonable steps to immediately end the release; B. Notify the Minnesota Department of Public Safety Duty Officer at 800-422-0798 or 651-649-5451 (metro area) immediately upon discovery of the release. The Permittee may contact the MPCA during business hours at 800-657-3864 or 651-296-6300 (metro area); and C. Recover as rapidly and as thoroughly as possible all substances and materials released or immediately take other action as may be reasonably possible to minimize or abate pollution to waters of the state or potential impacts to human health caused thereby. If the Permittee cannot immediately or completely recover the released materials or substances, the Permittee shall contact the MPCA. If directed by the MPCA, the Permittee shall consult with other local, state, or federal agencies (such as the Minnesota Department of Natural Resources and/or the Wetland Conservation Act authority) for implementation of additional clean up or remediation activities in wetland or other sensitive areas. [Minn. R. 7001.1090] 5.26.155 Sampling of a Release. Upon discovery of a release, the Permittee shall: A. Collect representative samples of the release. The Permittee shall sample the release for permitted effluent parameters and other parameters of concern immediately following discovery of the release. The Permittee may contact the MPCA during business hours to discuss the sampling parameters and protocol. In addition, the Permittee shall collect fecal coliform bacteria samples where the Permittee determines that the release contains or may contain sewage. If the Permittee cannot immediately stop the release, the Permittee shall consult with the MPCA regarding additional sampling requirements. The Permittee shall collect samples at least, but not limited to, two times per week for as long as the release continues; and B. Submit the sampling results on the Release Report located on the MPCA's website at https://www.pca.state.mn.us/water/discharge-monitoring-reports. The Permittee shall submit the Release Report to the MPCA with the next eDMR or within 30 days, whichever is sooner. [Minn. R. 7001.1090] 5.26.156 Bypass. [Minn. R. 7001] 5.26.157 Anticipated Bypass. The Permittee may allow any bypass to occur that does not cause effluent limitation exceedances, but only if the bypass is for essential maintenance to assure efficient operation of the facility. The Permittee shall submit prior notice to the MPCA at least ten days before the date of the bypass, if possible. The notice of the need for an anticipated bypass shall include the following information: A. The proposed date and estimated duration of the bypass; B. The alternatives to bypassing; and Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 27 of 41 C. A proposal for effluent sampling during the bypass. Any bypass wastewater shall enter waters of the state from outfalls specifically authorized by this permit. Therefore, the Permittee shall collect samples at the frequency and location identified in this permit or two times per week for as long as the bypass continues, whichever is more frequent. [40 CFR 122.41(m)(2 & 3), Minn. R. 7001.1090, subp. 1(J)] 5.26.158 This permit prohibits all other bypasses. The MPCA may take enforcement action against the Permittee for a bypass, unless the specific conditions described in Minn. R. 7001.1090 subp. 1(K) and 40 CFR 122.41(m)(4)(i) are met. In the event of an unanticipated bypass, the Permittee shall: A. Take all reasonable steps to immediately end the bypass; B. Notify the Minnesota Department of Public Safety Duty Officer at 800-422-0798 or 651-649-5451 (metro area) immediately upon commencement of the bypass. The Permittee may contact the MPCA during business hours at 800-657-3864 or 651-296-6300 (metro area); C. Immediately take action as may be reasonably possible to minimize or abate pollution to waters of the state or potential impacts to human health caused thereby. If directed by the MPCA, the Permittee shall consult with other local, state, or federal agencies for implementation of abatement, clean up, or remediation activities; and D. Only allow bypass wastewater as specified in this section to enter waters of the state from outfalls specifically authorized by this permit. The Permittee shall collect samples at the frequency and location identified in this permit or two times per week for as long as the bypass continues, whichever is more frequent. The Permittee shall also follow the reporting requirements for effluent violations as specified in this permit. [40 CFR 122.41(m)(4)i, Minn. R. 7001.1090, subp. 1(K), Minn. Stat. ch. 115.061] 5.26.159 Operation and Maintenance. [Minn. R. 7001] 5.26.160 The Permittee shall at all times properly operate and maintain the facilities and systems of treatment and control, and the appurtenances related to them which are installed or used by the Permittee to achieve compliance with the conditions of the permit. Proper operation and maintenance includes effective performance, adequate funding, adequate operator staffing and training, and adequate laboratory and process controls, including appropriate quality assurance procedures. The Permittee shall install and maintain appropriate backup or auxiliary facilities if they are necessary to achieve compliance with the conditions of the permit and, for all permits other than hazardous waste facility permits, if these backup or auxiliary facilities are technically and economically feasible. [Minn. R. 7001.0150, subp. 3(F)] 5.26.161 In the event of a reduction or loss of effective treatment of wastewater at the facility, the Permittee shall control production or curtail discharges to the extent necessary to maintain compliance with the terms and conditions of this permit. The Permittee shall continue this control or curtailment until they restore facility treatment processes or until the Permittee provides an alternative method of treatment. [Minn. R. 7001.1090, subp. 1(C)] 5.26.162 Solids Management. The Permittee shall properly store, transport, and manage biosolids, septage, sediments, residual solids, filter backwash, screenings, oil, grease, and other substances so that pollutants do not enter surface waters or groundwaters of the state. The Permittee shall manage solids in accordance with local, state, and federal requirements. [40 CFR 503, Minn. R. 7041] 5.26.163 Scheduled Maintenance. The Permittee shall schedule maintenance of the treatment works during non-critical water quality periods to prevent water quality degradation, except where the facility requires emergency maintenance to prevent a condition that would be detrimental to water quality or human health. [Minn. R. 7001.0150, subp. 2(B), Minn. R. 7001.0150, subp. 3(F)] 5.26.164 Control Tests. The Permittee shall conduct in-plant control tests at a frequency adequate to ensure compliance with the conditions of this permit. [Minn. R. 7001.0150, subp. 2(B), Minn. R. 7001.0150, subp. 3(F)] 5.26.165 Changes to the Facility or Permit. [Minn. R. 7001] 5.26.166 Permit Modifications. Except as provided under Minn. Stat. ch. 115.07, subd. 1 and 3, no person required by statute or rule to obtain a permit may construct, install, modify, or operate the facility to Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 28 of 41 be permitted, nor shall a person commence an activity for which a permit is required by statute or rule until the MPCA issues a written permit for the facility or activity. Permittees that propose to make changes to the facility or discharge that requires permit modification shall follow Minn. R. 7001.0190. If the Permittee cannot determine whether the proposed changes require a permit modification, the Permittee shall contact the MPCA prior to any action. The MPCA recommends that Permittees submit the application for permit modification to the MPCA at least 180 days prior to the planned change. [Minn. R. 7001.0030] 5.26.167 This permit does not require plans, specifications, and MPCA approval when maintenance dictates the need for installation of new equipment, provided the equipment is the same design size and has the same design intent. For instance, Permittees can replace a broken pipe, lift station pump, aerator, or blower with the same design-sized equipment without MPCA approval. If this permit does not expressly authorize the Permittee proposed construction, the MPCA may require a permit modification. If the proposed construction project requires an Environmental Assessment Worksheet under Minn. R. 4410, no construction shall begin until the MPCA issues a negative declaration and the Permittee receives or implements all approvals. [Minn. R. 7001.0030] 5.26.168 Report Changes. The Permittee shall give advance notice as soon as possible to the MPCA of any substantial changes in operational procedures, activities that may alter the nature or frequency of the discharge, and/or material factors that may affect compliance with the conditions of this permit. [Minn. R. 7001.0150, subp. 3(M)] 5.26.169 Chemical Additives. The Permittee shall receive prior written approval from the MPCA before increasing the use of a chemical additive authorized by this permit, or using a chemical additive not authorized by this permit, in quantities or concentrations that have the potential to change the characteristics, nature, and/or quality of the discharge. The Permittee shall request approval for an increase or new use of a chemical additive at least 60 days, or as soon as possible, before the proposed increase or new use. The Permittee shall include at least the following information for the proposed additive as instructed in the chemical additive approvals section on the MPCA website at https://www.pca.state.mn.us/water/wastewater- additional-guidance-and-information: A. The process for which the additive will be used; B. Safety Data Sheet (SDS) which shall include aquatic toxicity, human health, and environmental fate information for the proposed additive. The aquatic toxicity information shall include at minimum the results of: a) a 48-hour LC50 or EC50 acute study for a North American freshwater planktonic crustacean (either Ceriodaphnia or Daphnia sp.) and b) a 96-hour LC50 acute study for rainbow trout, bluegill, or fathead minnow or another North American freshwater aquatic species other than a planktonic crustacean; C. A complete product use and instruction label; D. The commercial and chemical names and Chemical Abstract Survey (CAS) number for all ingredients in the additive (If the SDS does not include information on chemical composition, including percentages for each ingredient totaling to 100%, the Permittee shall contact the supplier to have this information provided); and E. The proposed method of application, application frequency, concentration, and daily average and maximum rates of use. Upon review of the information submitted regarding the proposed chemical additive, the MPCA may require additional information be submitted for consideration. This permit may be modified to restrict the use or discharge of a chemical additive and include additional influent and effluent monitoring requirements. Approval for the use of an additive shall not justify the exceedance of any effluent limitation nor shall it be used as a defense against pollutant levels in the discharge causing or contributing to the violation of a water quality standard. [Minn. R. 7001.0170] Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 29 of 41 5.26.170 MPCA Initiated Permit Modification, Suspension, or Revocation. The MPCA may modify or revoke and reissue this permit pursuant to Minn. R. 7001.0170. The MPCA may revoke without reissuance of this permit pursuant to Minn. R. 7001.0180. [Minn. R. 7001.0170, Minn. R. 7001.0180] 5.26.171 Total Maximum Daily Load (TMDL) Impacts. The MPCA may require facilities that discharge to an impaired surface water, watershed, or drainage basin to comply with additional permits or permit requirements. These requirements can include additional restriction or relaxation of limits and monitoring as authorized by the CWA 303(d)(4)(A) and 40 CFR ch. 122.44(l)(2)(i), necessary to ensure consistency with the assumptions and requirements of any applicable EPA approved wasteload allocations resulting from TMDL studies. [40 CFR 122.44(I)(2)i] 5.26.172 Permit Transfer. This permit is not transferable to any person without the express written approval of the MPCA after compliance with the requirements of Minn. R. 7001.0190. A person who receives permit transference shall comply with the conditions of this permit. [Minn. R. 7001.0150, subp. 3(N)] 5.26.173 Facility Closure. The Permittee is responsible for closure and post-closure care of the facility. The Permittee shall notify the MPCA of a significant reduction or cessation of the activities described in this permit at least 180 days before the reduction or cessation. The MPCA may require the Permittee to provide a Facility Closure Plan to the MPCA for approval. The MPCA may require a permit modification or reissuance for facility closure that could result in a potential long-term water quality concern, such as the ongoing discharge of wastewater to surface or groundwater. The MPCA may require the Permittee to establish and maintain financial assurance to ensure performance of certain obligations under this permit, including closure, post-closure care, and remedial action at the facility. If the MPCA requires financial assurance, the MPCA shall approve the amount and type of financial assurance, and proposed modifications to previously MPCA-approved financial assurance. [Minn. Stat. ch. 116.07, subd. 4] 5.26.174 Permit Reissuance. If the Permittee desires to continue permit coverage beyond the date of permit expiration, the Permittee shall submit an application for permit reissuance: Due by 180 days prior to permit expiration. [Minn. R. 7001.0040] 5.26.175 If the Permittee does not intend to continue the activities authorized by this permit after the expiration date of this permit, the Permittee shall notify the MPCA in writing at least 180 days before permit expiration. If the Permittee has submitted a timely application for permit reissuance, the Permittee may continue to conduct the activities authorized by this permit, in compliance with the requirements of this permit, until the MPCA takes final action on the application, unless the MPCA determines any of the following: A. The Permittee is not in substantial compliance with the requirements of this permit, or with a stipulation agreement or compliance schedule designed to bring the Permittee into compliance with this permit; B. The MPCA, as a result of an action or failure to act by the Permittee, has been unable to take final action on the application on or before the expiration date of the permit; or C. The Permittee has submitted an application with major deficiencies or has failed to properly supplement the application in a timely manner after being informed of deficiencies. [Minn. R. 7001.0040, Minn. R. 7001.0160] Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 30 of 41 6. Submittal action summary GW 001 Well, Upgradient Groundwater Well: Large Subsurface Sewage Treatment System Well Monitoring Requirements 6.1.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)] GW 004 Well, Downgradient Groundwater Well: Large Subsurface Sewage Treatment System Well Monitoring Requirements 6.2.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)] GW 006 Well, Downgradient Groundwater Well: Large Subsurface Sewage Treatment System Well Monitoring Requirements 6.3.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)] GW 008 Well, Downgradient Groundwater Well: Large Subsurface Sewage Treatment System Well Monitoring Requirements 6.4.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)], Phases: Phase 2, Phase 1 GW 009 Piezometer, Other Groundwater Well: Large Subsurface Sewage Treatment System Piezometer Monitoring Requirements 6.5.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)] GW 010 Piezometer, Other Groundwater Well: Large Subsurface Sewage Treatment System Piezometer Monitoring Requirements 6.6.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)] GW 011 Piezometer, Other Groundwater Well: Large Subsurface Sewage Treatment System Piezometer Monitoring Requirements Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 31 of 41 6.7.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)] GW 012 Piezometer, Other Groundwater Well: Large Subsurface Sewage Treatment System Piezometer Monitoring Requirements 6.8.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)] GW 013 Piezometer, Other Groundwater Well: Large Subsurface Sewage Treatment System Piezometer Monitoring Requirements 6.9.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)] GW 014 Piezometer, Other Groundwater Well: Large Subsurface Sewage Treatment System Piezometer Monitoring Requirements 6.10.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)] GW 015 Piezometer, Other Groundwater Well: Large Subsurface Sewage Treatment System Piezometer Monitoring Requirements 6.11.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)] GW 016 Piezometer, Other Groundwater Well: Large Subsurface Sewage Treatment System Piezometer Monitoring Requirements 6.12.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)] GW 017 Piezometer, Other Groundwater Well: Large Subsurface Sewage Treatment System Piezometer Monitoring Requirements 6.13.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)] GW 018 Well, Downgradient Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 32 of 41 Groundwater Well: Large Subsurface Sewage Treatment System Well Monitoring Requirements 6.14.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)], Phases: Phase 4, Phase 3 WS 001 Influent Waste Waste Stream: Large Subsurface Sewage Treatment System Influent Monitoring Requirements 6.15.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)] WS 002 Intermediate: WW to Land Facility Specific Limit and Monitoring Requirements 6.16.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)] WS 004 Intermediate: WW to Land Facility Specific Limit and Monitoring Requirements 6.17.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)], Phases: Phase 4, Phase 3, Phase 2 WS 005 Intermediate: WW to Land Facility Specific Limit and Monitoring Requirements 6.18.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)], Phases: Phase 4, Phase 3, Phase 2 WS 006 Intermediate: WW to Land Facility Specific Limit and Monitoring Requirements 6.19.1 The Permittee shall submit a monthly DMR: Due by 21 days after the end of each calendar month following permit issuance. [Minn. R. 7001.0150, subp. 2(B)], Phases: Phase 4, Phase 3, Phase 2 MN0054119 Bliss Collector WWTP Compliance Schedule Requirements 6.20.1 The Permittee shall install flow monitoring equipment to monitor the amount of flow directed to each drainfield. The Permittee shall install equipment: Due by 180 days after permit issuance. [Minn. R. 7001] 6.20.2 The Permittee shall submit a Facility Evaluation Report within one year of permit issuance. The report should summarize the effect of operational changes and nitrogen mitigation Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 33 of 41 efforts on nitrogen treatment. The Permittee shall submit a report: Due by one year after permit issuance. [Minn. R. 7001] Biosolids: Domestic Septage (No Analysis Required) 6.21.3 The Permittee shall submit a biosolids annual report: Due annually, by the 31st of December on a form provided by or approved by the MPCA. The report shall include the requirements in Minnesota Rules, part 7041.1700. [Minn. R. 7041] Total Facility Requirements (SDS) 6.22.4 Permit Reissuance. If the Permittee desires to continue permit coverage beyond the date of permit expiration, the Permittee shall submit an application for permit reissuance: Due by 180 days prior to permit expiration. [Minn. R. 7001.0040] Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 34 of 41 7. Limits and monitoring Subject item Parameter Discharge limitations Monitoring requirements Quantity /Loading avg. Quantity /Loading max. Quantity /Loading units Quality /Conc. min. Quality /Conc. avg. Quality /Conc. max. Quality/ Conc. units Frequency Sample type Effective period Notes GW 001 MW - 1s Chloride, Total Monitor only. calendar month maximum milligrams per liter once per month Grab Apr, Jul, Oct GW 001 MW - 1s Elevation of GW Relative to Mean Sea Level Monitor only. instantaneous maximum feet once per month Measurement, Instantaneous Apr, Jul, Oct GW 001 MW - 1s Nitrite Plus Nitrate, Total (as N) Monitor only. calendar month maximum milligrams per liter once per month Grab Apr, Jul, Oct GW 001 MW - 1s Nitrogen, Ammonia, Total (as N) Monitor only. calendar month maximum milligrams per liter once per month Grab Apr, Jul, Oct GW 001 MW - 1s Nitrogen, Kjeldahl, Total Monitor only. calendar month maximum milligrams per liter once per month Grab Apr, Jul, Oct GW 001 MW - 1s pH Monitor only. instantaneous minimum Monitor only. instantaneous maximum standard units once per month Grab Apr, Jul, Oct GW 001 MW - 1s Phosphorus, Total (as P) Monitor only. calendar month maximum milligrams per liter once per month Grab Apr, Jul, Oct GW 001 MW - 1s Specific Conductance Monitor only. instantaneous maximum micromhos per cm once per month Grab Apr, Jul, Oct GW 001 MW - 1s Temperature, Water (C) Monitor only. instantaneous maximum degrees Celsius once per month Grab Apr, Jul, Oct GW 004 MW - 3s Chloride, Total Monitor only. calendar month maximum milligrams per liter once per month Grab Apr, Jul, Oct Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 35 of 41 Subject item Parameter Discharge limitations Monitoring requirements Quantity /Loading avg. Quantity /Loading max. Quantity /Loading units Quality /Conc. min. Quality /Conc. avg. Quality /Conc. max. Quality/ Conc. units Frequency Sample type Effective period Notes GW 004 MW - 3s Elevation of GW Relative to Mean Sea Level Monitor only. instantaneous maximum feet once per month Measurement, Instantaneous Apr, Jul, Oct GW 004 MW - 3s Phase 1, Phase 2, Phase 3 Nitrite Plus Nitrate, Total (as N) Monitor only. calendar month maximum milligrams per liter once per month Grab Apr, Jul, Oct GW 004 MW - 3s Phase 4 Nitrite Plus Nitrate, Total (as N) 10 calendar month maximum milligrams per liter once per month Grab Apr, Jul, Oct GW 004 MW - 3s Nitrogen, Ammonia, Total (as N) Monitor only. calendar month maximum milligrams per liter once per month Grab Apr, Jul, Oct GW 004 MW - 3s Nitrogen, Kjeldahl, Total Monitor only. calendar month maximum milligrams per liter once per month Grab Apr, Jul, Oct GW 004 MW - 3s pH Monitor only. instantaneous minimum Monitor only. instantaneous maximum standard units once per month Grab Apr, Jul, Oct GW 004 MW - 3s Phosphorus, Total (as P) Monitor only. calendar month maximum milligrams per liter once per month Grab Apr, Jul, Oct GW 004 MW - 3s Specific Conductance Monitor only. instantaneous maximum micromhos per cm once per month Grab Apr, Jul, Oct GW 004 MW - 3s Temperature, Water (C) Monitor only. instantaneous maximum degrees Celsius once per month Grab Apr, Jul, Oct GW 006 MW - 4s Chloride, Total Monitor only. calendar month maximum milligrams per liter once per month Grab Apr, Jul, Oct GW 006 MW - 4s Elevation of GW Relative to Mean Sea Level Monitor only. instantaneous maximum feet once per month Measurement, Instantaneous Apr, Jul, Oct Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 36 of 41 Subject item Parameter Discharge limitations Monitoring requirements Quantity /Loading avg. Quantity /Loading max. Quantity /Loading units Quality /Conc. min. Quality /Conc. avg. Quality /Conc. max. Quality/ Conc. units Frequency Sample type Effective period Notes GW 006 MW - 4s Phase 1, Phase 2, Phase 3 Nitrite Plus Nitrate, Total (as N) Monitor only. calendar month maximum milligrams per liter once per month Grab Apr, Jul, Oct GW 006 MW - 4s Phase 4 Nitrite Plus Nitrate, Total (as N) 10 calendar month maximum milligrams per liter once per month Grab Apr, Jul, Oct GW 006 MW - 4s Nitrogen, Ammonia, Total (as N) Monitor only. calendar month maximum milligrams per liter once per month Grab Apr, Jul, Oct GW 006 MW - 4s Nitrogen, Kjeldahl, Total Monitor only. calendar month maximum milligrams per liter once per month Grab Apr, Jul, Oct GW 006 MW - 4s pH Monitor only. instantaneous minimum Monitor only. instantaneous maximum standard units once per month Grab Apr, Jul, Oct GW 006 MW - 4s Phosphorus, Total (as P) Monitor only. calendar month maximum milligrams per liter once per month Grab Apr, Jul, Oct GW 006 MW - 4s Specific Conductance Monitor only. instantaneous maximum micromhos per cm once per month Grab Apr, Jul, Oct GW 006 MW - 4s Temperature, Water (C) Monitor only. instantaneous maximum degrees Celsius once per month Grab Apr, Jul, Oct GW 008 MW - 5d Phase 1, Phase 2 Chloride, Total Monitor only. calendar month maximum milligrams per liter once per month Grab Apr, Jul, Oct GW 008 MW - 5d Phase 1, Phase 2 Elevation of GW Relative to Mean Sea Level Monitor only. instantaneous maximum feet once per month Measurement, Instantaneous Apr, Jul, Oct GW 008 MW - 5d Phase 1, Phase 2 Nitrite Plus Nitrate, Total (as N) Monitor only. calendar month maximum milligrams per liter once per month Grab Apr, Jul, Oct Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 37 of 41 Subject item Parameter Discharge limitations Monitoring requirements Quantity /Loading avg. Quantity /Loading max. Quantity /Loading units Quality /Conc. min. Quality /Conc. avg. Quality /Conc. max. Quality/ Conc. units Frequency Sample type Effective period Notes GW 008 MW - 5d Phase 1, Phase 2 Nitrogen, Ammonia, Total (as N) Monitor only. calendar month maximum milligrams per liter once per month Grab Apr, Jul, Oct GW 008 MW - 5d Phase 1, Phase 2 Nitrogen, Kjeldahl, Total Monitor only. calendar month maximum milligrams per liter once per month Grab Apr, Jul, Oct GW 008 MW - 5d Phase 1, Phase 2 pH Monitor only. instantaneous minimum Monitor only. instantaneous maximum standard units once per month Grab Apr, Jul, Oct GW 008 MW - 5d Phase 1, Phase 2 Phosphorus, Total (as P) Monitor only. calendar month maximum milligrams per liter once per month Grab Apr, Jul, Oct GW 008 MW - 5d Phase 1, Phase 2 Specific Conductance Monitor only. instantaneous maximum micromhos per cm once per month Grab Apr, Jul, Oct GW 008 MW - 5d Phase 1, Phase 2 Temperature, Water (C) Monitor only. instantaneous maximum degrees Celsius once per month Grab Apr, Jul, Oct GW 009 Pz. a Separation to Ground Water Monitor only. instantaneous maximum inches once per month Measurement Apr, Jul, Oct GW 010 Pz. b Separation to Ground Water Monitor only. instantaneous maximum inches once per month Measurement Apr, Jul, Oct GW 011 Pz. c Separation to Ground Water Monitor only. instantaneous maximum inches once per month Measurement Apr, Jul, Oct GW 012 Pz. d Separation to Ground Water Monitor only. instantaneous maximum inches once per month Measurement Apr, Jul, Oct GW 013 Pz. e Separation to Ground Water Monitor only. instantaneous maximum inches once per month Measurement Apr, Jul, Oct Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 38 of 41 Subject item Parameter Discharge limitations Monitoring requirements Quantity /Loading avg. Quantity /Loading max. Quantity /Loading units Quality /Conc. min. Quality /Conc. avg. Quality /Conc. max. Quality/ Conc. units Frequency Sample type Effective period Notes GW 014 Pz. f Separation to Ground Water Monitor only. instantaneous maximum inches once per month Measurement Apr, Jul, Oct GW 015 Pz. g Separation to Ground Water Monitor only. instantaneous maximum inches once per month Measurement Apr, Jul, Oct GW 016 Pz. h Separation to Ground Water Monitor only. instantaneous maximum inches once per month Measurement Apr, Jul, Oct GW 017 Pz. i Separation to Ground Water Monitor only. instantaneous maximum inches once per month Measurement Apr, Jul, Oct GW 018 Proposed Downgradient Well Phase 3, Phase 4 Chloride, Total Monitor only. calendar month maximum milligrams per liter once per month Grab Apr, Jul, Oct GW 018 Proposed Downgradient Well Phase 3, Phase 4 Elevation of GW Relative to Mean Sea Level Monitor only. instantaneous maximum feet once per month Measurement, Instantaneous Apr, Jul, Oct GW 018 Proposed Downgradient Well Phase 3 Nitrite Plus Nitrate, Total (as N) Monitor only. calendar month maximum milligrams per liter once per month Grab Apr, Jul, Oct GW 018 Proposed Downgradient Well Phase 4 Nitrite Plus Nitrate, Total (as N) 10 calendar month maximum milligrams per liter once per month Grab Apr, Jul, Oct GW 018 Proposed Downgradient Well Phase 3, Phase 4 Nitrogen, Ammonia, Total (as N) Monitor only. calendar month maximum milligrams per liter once per month Grab Apr, Jul, Oct Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 39 of 41 Subject item Parameter Discharge limitations Monitoring requirements Quantity /Loading avg. Quantity /Loading max. Quantity /Loading units Quality /Conc. min. Quality /Conc. avg. Quality /Conc. max. Quality/ Conc. units Frequency Sample type Effective period Notes GW 018 Proposed Downgradient Well Phase 3, Phase 4 Nitrogen, Kjeldahl, Total Monitor only. calendar month maximum milligrams per liter once per month Grab Apr, Jul, Oct GW 018 Proposed Downgradient Well Phase 3, Phase 4 pH Monitor only. instantaneous minimum Monitor only. instantaneous maximum standard units once per month Grab Apr, Jul, Oct GW 018 Proposed Downgradient Well Phase 3, Phase 4 Phosphorus, Total (as P) Monitor only. calendar month maximum milligrams per liter once per month Grab Apr, Jul, Oct GW 018 Proposed Downgradient Well Phase 3, Phase 4 Specific Conductance Monitor only. instantaneous maximum micromhos per cm once per month Grab Apr, Jul, Oct GW 018 Proposed Downgradient Well Phase 3, Phase 4 Temperature, Water (C) Monitor only. instantaneous maximum degrees Celsius once per month Grab Apr, Jul, Oct WS 001 Dosing Station 1 BOD, Carbonaceous 05 Day (20 Deg C) Monitor only. calendar month average milligrams per liter once per month Grab Jan-Dec WS 001 Dosing Station 1 Flow Monitor only. calendar month total million gallons 0.0198 calendar month average 0.0297 daily maximum million gallons per day once per day Measurement, Continuous Jan-Dec WS 001 Dosing Station 1 pH Monitor only. calendar month minimum Monitor only. calendar month maximum standard units once per month Grab Jan-Dec Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 40 of 41 Subject item Parameter Discharge limitations Monitoring requirements Quantity /Loading avg. Quantity /Loading max. Quantity /Loading units Quality /Conc. min. Quality /Conc. avg. Quality /Conc. max. Quality/ Conc. units Frequency Sample type Effective period Notes WS 001 Dosing Station 1 Phosphorus, Total (as P) Monitor only. calendar month maximum milligrams per liter once per month Grab Jan-Dec WS 001 Dosing Station 1 Precipitation Monitor only. calendar month total inches once per day Measurement Jan-Dec WS 001 Dosing Station 1 Solids, Total Suspended (TSS) Monitor only. calendar month average milligrams per liter once per month Grab Jan-Dec WS 002 Sand Filter Effluent, Dosing Station 2 BOD, Carbonaceous 05 Day (20 Deg C) Monitor only. calendar month average milligrams per liter once per month Grab Jan-Dec WS 002 Sand Filter Effluent, Dosing Station 2 Chloride, Total Monitor only. calendar month average milligrams per liter once per month Grab Jan-Dec WS 002 Sand Filter Effluent, Dosing Station 2 Nitrite Plus Nitrate, Total (as N) Monitor only. calendar month average milligrams per liter once per month Grab Jan-Dec WS 002 Sand Filter Effluent, Dosing Station 2 Nitrogen, Kjeldahl, Total Monitor only. calendar month average milligrams per liter once per month Grab Jan-Dec Permit issued: September 1, 2021 MN0054119 Permit expires: August 31, 2026 Page 41 of 41 Subject item Parameter Discharge limitations Monitoring requirements Quantity /Loading avg. Quantity /Loading max. Quantity /Loading units Quality /Conc. min. Quality /Conc. avg. Quality /Conc. max. Quality/ Conc. units Frequency Sample type Effective period Notes WS 002 Sand Filter Effluent, Dosing Station 2 Nitrogen, Total (as N) Monitor only. calendar month average milligrams per liter once per month Calculation Jan-Dec WS 002 Sand Filter Effluent, Dosing Station 2 Phosphorus, Total (as P) Monitor only. calendar month average milligrams per liter once per month Grab Jan-Dec WS 002 Sand Filter Effluent, Dosing Station 2 Solids, Total Suspended (TSS) Monitor only. calendar month average milligrams per liter once per month Grab Jan-Dec WS 004 Infiltration Trench A Phase 2, Phase 3, Phase 4 Flow Monitor only. calendar month total million gallons Monitor only. calendar month average Monitor only. calendar month maximum million gallons per day once per day Measurement, Continuous Jan-Dec WS 005 Infiltration Trench B Phase 2, Phase 3, Phase 4 Flow Monitor only. calendar month total million gallons Monitor only. calendar month average Monitor only. calendar month maximum million gallons per day once per day Measurement, Continuous Jan-Dec WS 006 Infiltration Trench C Phase 2, Phase 3, Phase 4 Flow Monitor only. calendar month total million gallons Monitor only. calendar month average Monitor only. calendar month maximum million gallons per day once per day Measurement, Continuous Jan-Dec