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Sewage treatment plant, major discharger, Post Falls, Idaho. NPDES permit ID0025852, in force until Dec 31, 2028. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Temperature, water deg. centigrade | monthly average | report only (deg C) | all year |
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year |
| Oxygen, dissolved [DO] | monthly average | report only (mg/L) | all year |
| Oxygen, dissolved [DO] | instantaneous minimum | report only (mg/L) | all year |
| Oxygen, dissolved [DO] | monthly average | report only (mg/L) | all year |
| Oxygen, dissolved [DO] | instantaneous minimum | report only (mg/L) | all year |
| pH | instantaneous minimum | ≥ 6.5 SU | all year |
| pH | daily maximum | ≤ 9 SU | all year |
| pH | instantaneous minimum | report only (SU) | all year |
| pH | instantaneous maximum | report only (SU) | all year |
| pH | instantaneous minimum | report only (SU) | all year |
| pH | instantaneous maximum | report only (SU) | all year |
| Alkalinity, total [as CaCO3] | monthly average | report only (mg/L) | all year |
| Alkalinity, total [as CaCO3] | daily maximum | report only (mg/L) | all year |
| Alkalinity, total [as CaCO3] | monthly average | report only (mg/L) | all year |
| Solids, total suspended | monthly average | ≤ 30 mg/g | all year |
| Solids, total suspended | weekly average | ≤ 45 mg/g | all year |
| Solids, total suspended | monthly average | ≤ 1303 lb/d | all year |
| Solids, total suspended | weekly average | ≤ 1955 lb/d | all year |
| Solids, total suspended | monthly average | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | average | ≤ 255 lb/d | Oct |
| Nitrogen, ammonia total [as N] | monthly average | report only (lb/d) | all year |
| Nitrogen, ammonia total [as N] | daily maximum | report only (lb/d) | all year |
| Nitrogen, ammonia total [as N] | monthly average | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year |
| Phosphorus, total [as P] | average | ≤ 3.19 lb/d | Oct |
| Phosphorus, total [as P] | monthly average | report only (lb/d) | all year |
| Phosphorus, total [as P] | daily maximum | report only (lb/d) | all year |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year |
| Carbon, dissolved organic [as C] | monthly average | report only (mg/L) | all year |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | all year |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year |
| Hardness, total [as CaCO3] | monthly average | report only (mg/L) | all year |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year |
| Calcium, dissolved [as Ca] | monthly average | report only (mg/L) | all year |
| Magnesium, dissolved [as Mg] | monthly average | report only (mg/L) | all year |
| Sodium, dissolved [as Na] | monthly average | report only (mg/L) | all year |
| Potassium, dissolved [as K] | monthly average | report only (mg/L) | all year |
| Chloride [as Cl] | monthly average | report only (mg/L) | all year |
| Sulfate, dissolved [as SO4] | monthly average | report only (mg/L) | all year |
| Cadmium, total [as Cd] | monthly average | report only (ug/L) | all year |
| Cadmium, total [as Cd] | daily maximum | report only (ug/L) | all year |
| Copper, total [as Cu] | monthly average | report only (ug/L) | all year |
| Copper, total [as Cu] | daily maximum | report only (ug/L) | all year |
| Copper, total [as Cu] | monthly average | report only (ug/L) | all year |
| Copper, total [as Cu] | daily maximum | report only (ug/L) | all year |
| Lead, total [as Pb] | monthly average | report only (ug/L) | all year |
| Lead, total [as Pb] | daily maximum | report only (ug/L) | all year |
| Lead, total [as Pb] | monthly average | report only (ug/L) | all year |
| Lead, total [as Pb] | daily maximum | report only (ug/L) | all year |
| Silver, total [as Ag] | monthly average | report only (ug/L) | all year |
| Silver, total [as Ag] | daily maximum | report only (ug/L) | all year |
| Zinc, dissolved [as Zn] | monthly average | report only (ug/L) | all year |
| Zinc, dissolved [as Zn] | daily maximum | report only (ug/L) | all year |
| Zinc, total [as Zn] | monthly average | ≤ 82.39 ug/L | all year |
| Zinc, total [as Zn] | daily maximum | ≤ 120.23 ug/L | all year |
| Zinc, total [as Zn] | monthly average | ≤ 3.58 lb/d | all year |
| Zinc, total [as Zn] | daily maximum | ≤ 5.22 lb/d | all year |
| Chlorophyll A | monthly average | report only (ug/L) | all year |
| Chlorophyll A | daily maximum | report only (ug/L) | all year |
| Chlorophyll A | monthly average | report only (ug/L) | all year |
| Chlorophyll A | daily maximum | report only (ug/L) | all year |
| Nitrogen, total Kjeldahl | monthly average | report only (ug/L) | all year |
| Nitrogen, total Kjeldahl | daily maximum | report only (ug/L) | all year |
| Chlorine, total residual | monthly average | ≤ 127 ug/L | Jul–Sep |
| Chlorine, total residual | monthly average | ≤ 244 ug/L | Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec |
| Chlorine, total residual | daily maximum | ≤ 294 ug/L | Jul–Sep |
| Chlorine, total residual | daily maximum | ≤ 565 ug/L | Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec |
| Chlorine, total residual | monthly average | ≤ 5.3 lb/d | Jul–Sep |
| Chlorine, total residual | monthly average | ≤ 10.2 lb/d | Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec |
| Chlorine, total residual | daily maximum | ≤ 13.6 lb/d | Jul–Sep |
| Chlorine, total residual | daily maximum | ≤ 23.6 lb/d | Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec |
| E. coli | monthly geometric mean | ≤ 126 #/100mL | all year |
| E. coli | instantaneous maximum | ≤ 406 #/100mL | 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 |
| 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 |
| PER-AND POLYFLUOROALKYL SUBSTANCES | daily maximum | report only (ug/L) | all year |
| Enterococci | monthly geometric mean | ≤ 35 #/100mL | all year |
| Enterococci | instantaneous maximum | ≤ 130 #/100mL | all year |
| Polychlorinated biphenyls [PCB] pg/L | daily maximum | report only (pg/L) | Feb, May, Aug, Nov |
| Polychlorinated biphenyls [PCB] pg/L | daily maximum | report only (pg/L) | Feb, May, Aug, Nov |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 25 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 40 mg/L | all year |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 369 lb/d | Feb–Oct |
| BOD, carbonaceous [5 day, 20 C] | average | ≤ 255 lb/d | Oct |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 1086 lb/d | Jan, Nov, Dec |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 679 lb/d | Feb–Oct |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 1738 lb/d | Jan, Nov, Dec |
| BOD, carbonaceous [5 day, 20 C] | monthly 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] | monthly average | report only (mg/L) | all year |
| BOD, carbonaceous, percent removal | monthly average minimum | ≥ 85 % | all year |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year |
| IC25 Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | monthly average | ≤ 16.5 Ratio (alert, not enforceable) | Feb, May, Aug, Nov |
| IC25 Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | daily maximum | ≤ 16.5 Ratio (alert, not enforceable) | Feb, May, Aug, Nov |
| IC25 Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | monthly average | ≤ 16.5 Ratio (alert, not enforceable) | Feb, May, Aug, Nov |
| IC25 Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | daily maximum | ≤ 16.5 Ratio (alert, not enforceable) | Feb, May, Aug, Nov |
Cited limits by parameter: Idaho's rules and the federal ones.
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On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/ID0025852 · MCP: https://passage-data.com/mcp