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Cheese, Natural And Processed, Milbank, South Dakota. NPDES permit SD0027987 expired Mar 31, 2017; its limits still apply. Last 12 months: no values over a limit, 2 required values missing, 3 of 15 reports late. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Temperature, water deg. fahrenheit | 30-day average | report only (deg F) | all year |
| Temperature, water deg. fahrenheit | daily maximum | ≤ 90 deg F | all year |
| Temperature, water deg. fahrenheit | value | report only (deg F) | all year |
| Temperature, water deg. fahrenheit | value | report only (deg F) | all year |
| Temp. diff. between samp. & upstrm deg. F | daily maximum | ≤ 2 deg F | all year |
| Flow rate | 30-day average | report only (MGD) | all year |
| Flow rate | daily maximum | report only (MGD) | all year |
| Turbidity | 30-day average | report only (NTU) | all year |
| Turbidity | daily maximum | report only (NTU) | all year |
| Conductivity | 30-day average | report only (umho/cm) | all year |
| Conductivity | daily maximum | report only (umho/cm) | all year |
| Oxygen, dissolved [DO] | daily minimum | ≥ 6.5 mg/L | Jan, Feb, Mar, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec |
| BOD, 5-day, 20 deg. C | 30-day average | ≤ 15 mg/L | all year |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 30 mg/L | all year |
| pH | daily minimum | ≥ 6 SU | all year |
| pH | daily maximum | ≤ 9 SU | all year |
| Alkalinity, total [as CaCO3] | 30-day average | report only (mg/L) | all year |
| Alkalinity, total [as CaCO3] | daily maximum | report only (mg/L) | all year |
| Solids, total suspended | 30-day average | ≤ 20 mg/L | all year |
| Solids, total suspended | daily maximum | ≤ 40 mg/L | all year |
| Oil and grease, hexane extr method | 30-day average | report only (mg/L) | all year |
| Oil and grease, hexane extr method | daily maximum | ≤ 10 mg/L | all year |
| Oil and grease, hexane extr method | daily maximum | ≤ 10 mg/L | all year |
| Nitrogen, total [as N] | 30-day average | report only (mg/L) | all year |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 1 mg/L | all year |
| Nitrogen, ammonia total [as N] | 30-day average | ≤ 1 mg/L | all year |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 1.8 mg/L | all year |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 1.8 mg/L | all year |
| Nitrogen, nitrate total [as N] | 30-day average | ≤ 50 mg/L | all year |
| Nitrogen, nitrate total [as N] | 30-day average | ≤ 50 mg/L | all year |
| Nitrogen, nitrate total [as N] | daily maximum | ≤ 88 mg/L | all year |
| Nitrogen, nitrate total [as N] | daily maximum | ≤ 88 mg/L | all year |
| Nitrogen, Kjeldahl, total [as N] | 30-day average | report only (mg/L) | all year |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year |
| Phosphorus, total [as P] | 30-day average | ≤ 7 mg/L | all year |
| Phosphorus, total [as P] | 30-day average | ≤ 7 mg/L | all year |
| Phosphorus, total [as P] | daily maximum | ≤ 10 mg/L | all year |
| Phosphorus, total [as P] | daily maximum | ≤ 10 mg/L | all year |
| Floating solids, waste or visible foam-visual | daily maximum | report only (Y=0;N=1) | all year |
| E. coli, colony forming units [CFU] | 30-day geometric mean | ≤ 630 #/100mL | May–Sep |
| E. coli, colony forming units [CFU] | daily maximum | ≤ 1178 #/100mL | May–Sep |
| Solids, total dissolved | 30-day average | report only (mg/L) | all year |
| Solids, total dissolved | daily maximum | report only (mg/L) | all year |
| BOD, carbonaceous [5 day, 20 C] | 30-day average | report only (mg/L) | all year |
| BOD, carbonaceous [5 day, 20 C] | 30-day average | report only (mg/L) | all year |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | all year |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | all year |
| Chemical Oxygen Demand [COD] | 30-day average | report only (mg/L) | all year |
| Chemical Oxygen Demand [COD] | 30-day average | report only (mg/L) | all year |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | all year |
| Chemical Oxygen Demand [COD] | daily maximum | report only (mg/L) | all year |
| Oil and grease visual | daily maximum | ≤ 0 N=0;Y=1 | all year |
| IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia | minimum | ≥ 67 % | Apr |
| IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia | minimum | ≥ 55 % | Oct |
| IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia | minimum | ≥ 53 % | Jan, Feb, Mar, Nov, Dec |
| IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia | minimum | ≥ 63 % | May–Sep |
| IC25 Static Renewal 7 Day Chronic Pimephales | minimum | ≥ 63 % | May–Sep |
| IC25 Static Renewal 7 Day Chronic Pimephales | minimum | ≥ 67 % | Apr |
| IC25 Static Renewal 7 Day Chronic Pimephales | minimum | ≥ 53 % | Jan, Feb, Mar, Nov, Dec |
| IC25 Static Renewal 7 Day Chronic Pimephales | minimum | ≥ 55 % | Oct |
Cited limits by parameter: South Dakota's rules and the federal ones.
Same industry: the 7 Food and Kindred Products permits in South Dakota.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/SD0027987 · MCP: https://passage-data.com/mcp