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Refuse Systems, Northville, Michigan. NPDES permit MI0045713 expired Oct 1, 2026; its limits still apply. Last 12 months: no values over a limit, 2 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | Mar |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | Jan, Feb, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | Mar |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | Jan, Feb, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec |
| Temperature, water deg. fahrenheit | monthly average | report only (deg F) | Mar |
| Temperature, water deg. fahrenheit | daily maximum | report only (deg F) | Mar |
| Thermal Discharge | monthly average | ≤ .1 MBTU/hr | Mar |
| Thermal Discharge | daily maximum | report only (MBTU/hr) | Mar |
| Oxygen, dissolved [DO] | daily minimum | ≥ 6 mg/L | Apr |
| Oxygen, dissolved [DO] | daily minimum | ≥ 7 mg/L | Jan, Feb, Mar, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec |
| pH | daily minimum | ≥ 6.5 SU | all year |
| pH | daily maximum | ≤ 9 SU | all year |
| Solids, total suspended | monthly average | ≤ 20 mg/L | May–Nov |
| Solids, total suspended | monthly average | ≤ 30 mg/L | Jan, Feb, Mar, Apr, Dec |
| Solids, total suspended | daily maximum | ≤ 30 mg/L | May–Nov |
| Solids, total suspended | daily maximum | ≤ 45 mg/L | Jan, Feb, Mar, Apr, Dec |
| Solids, total suspended | monthly average | ≤ 17 lb/d | May–Nov |
| Solids, total suspended | monthly average | ≤ 25 lb/d | Jan, Feb, Mar, Apr, Dec |
| Solids, total suspended | daily maximum | ≤ 25 lb/d | May–Nov |
| Solids, total suspended | daily maximum | ≤ 38 lb/d | Jan, Feb, Mar, Apr, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.5 mg/L | Apr |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .5 mg/L | May–Nov |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.5 mg/L | Jan, Feb, Mar, Dec |
| Nitrogen, ammonia total [as N] | daily maximum | = 10 mg/L | Apr |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 2 mg/L | May–Nov |
| Nitrogen, ammonia total [as N] | daily maximum | = 10 mg/L | Jan, Feb, Mar, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.3 lb/d | Apr |
| Nitrogen, ammonia total [as N] | monthly average | ≤ .4 lb/d | May–Nov |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 2.1 lb/d | Jan, Feb, Mar, Dec |
| Nitrogen, ammonia total [as N] | daily maximum | = 8.4 lb/d | Apr |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 1.7 lb/d | May–Nov |
| Nitrogen, ammonia total [as N] | daily maximum | = 8.4 lb/d | Jan, Feb, Mar, Dec |
| Phosphorus, total [as P] | monthly average | ≤ 1 mg/L | all year |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year |
| Phosphorus, total [as P] | monthly average | ≤ .8 lb/d | all year |
| Phosphorus, total [as P] | daily maximum | report only (lb/d) | all year |
| Cyanide [A] | monthly average | = 5.2 ug/L | all year |
| Cyanide [A] | daily maximum | = 44 ug/L | all year |
| Cyanide [A] | monthly average | = .004 lb/d | all year |
| Cyanide [A] | daily maximum | = .04 lb/d | all year |
| Equipment inspection - visual | value | report only (N=0;Y=1) | all year |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year |
| Perfluorooctanoic acid (PFOA) | daily maximum | report only (ug/L) | all year |
| Perfluorooctanesulfonate | daily maximum | report only (ug/L) | all year |
| Perfluorobutanesulfonic acid (PFBS) | daily maximum | report only (ug/L) | all year |
| Mercury, total [as Hg] | monthly average | report only (ng/L) | all year |
| Mercury, total [as Hg] | daily maximum | report only (ng/L) | all year |
| Mercury, total [as Hg] | monthly average | report only (lb/d) | all year |
| Mercury, total [as Hg] | daily maximum | report only (lb/d) | all year |
| Mercury, total [as Hg] | 12-month average | ≤ 2 ng/L | all year |
| Mercury, total [as Hg] | 12-month average | ≤ .0000017 lb/d | all year |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 4 mg/L | May–Nov |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 10 mg/L | May–Nov |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 60 mg/L | Apr |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 44 mg/L | Jan, Feb, Mar, Dec |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 3 lb/d | May–Nov |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 8.3 lb/d | May–Nov |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 50 lb/d | Apr |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | ≤ 37 lb/d | Jan, Feb, Mar, Dec |
| Outfall observation,visual, y/n response | value | report only (N=0;Y=1) | all year |
Cited limits by parameter: Michigan's rules and the federal ones.
Same industry: the 13 Refuse Systems permits in Michigan.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/MI0045713 · MCP: https://passage-data.com/mcp