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Sewage treatment plant, major discharger, Mountain Top, Pennsylvania. NPDES permit PA0045985, in force until Jun 30, 2030. Last 12 months: over a limit once (last February 2026), 154 required values missing. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| February 2026 | Solids, total suspended, daily maximum | 22.1 mg/L | ≤ 15 mg/L | 47% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen, dissolved [DO] | instantaneous minimum | ≥ 6 mg/L | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year | 001 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (mg/L) | all year | 001 |
| BOD, 5-day, 20 deg. C | monthly average | report only (lb/d) | all year | 001 |
| BOD, 5-day, 20 deg. C | daily maximum | report only (lb/d) | all year | 001 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 001 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | monthly average | ≤ 10 mg/L | all year | 001 |
| Solids, total suspended | daily maximum | ≤ 15 mg/L | all year | 001 |
| Solids, total suspended | monthly average | ≤ 346.9 lb/d | all year | 001 |
| Solids, total suspended | weekly average | ≤ 520.4 lb/d | all year | 001 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 001 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 001 |
| Solids, total suspended | monthly average | report only (lb/d) | all year | 001 |
| Solids, total suspended | daily maximum | report only (lb/d) | all year | 001 |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 1.93 mg/L | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 5.79 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 3.86 mg/L | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 11.58 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 66.9 lb/d | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 200.8 lb/d | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 133.9 lb/d | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | ≤ 401.7 lb/d | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrite + Nitrate total [as N] | monthly average | report only (mg/L) | all year | 001 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 001 |
| Phosphorus, total [as P] | monthly average | report only (lb/d) | all year | 001 |
| Carbon, tot organic [TOC] | monthly average | report only (mg/L) | all year | 001 |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | all year | 001 |
| Carbon, tot organic [TOC] | monthly average | report only (lb/d) | all year | 001 |
| Carbon, tot organic [TOC] | daily maximum | report only (lb/d) | all year | 001 |
| Chromium, hexavalent [as Cr] | monthly average | report only (ug/L) | all year | 001 |
| Chromium, hexavalent [as Cr] | daily maximum | report only (ug/L) | all year | 001 |
| Chromium, hexavalent [as Cr] | monthly average | report only (lb/d) | all year | 001 |
| Chromium, hexavalent [as Cr] | daily maximum | report only (lb/d) | all year | 001 |
| Copper, total [as Cu] | monthly average | report only (ug/L) | all year | 001 |
| Copper, total [as Cu] | daily maximum | report only (ug/L) | all year | 001 |
| Copper, total [as Cu] | monthly average | report only (lb/d) | all year | 001 |
| Copper, total [as Cu] | daily maximum | report only (lb/d) | all year | 001 |
| Manganese, total [as Mn] | monthly average | report only (ug/L) | all year | 001 |
| Manganese, total [as Mn] | daily maximum | report only (ug/L) | all year | 001 |
| Manganese, total [as Mn] | monthly average | report only (lb/d) | all year | 001 |
| Manganese, total [as Mn] | daily maximum | report only (lb/d) | all year | 001 |
| Zinc, total [as Zn] | monthly average | ≤ .206 mg/L | all year | 001 |
| Zinc, total [as Zn] | daily maximum | ≤ .321 mg/L | all year | 001 |
| Zinc, total [as Zn] | monthly average | ≤ 7.14 lb/d | all year | 001 |
| Zinc, total [as Zn] | daily maximum | report only (lb/d) | all year | 001 |
| Aluminum, total [as Al] | monthly average | report only (ug/L) | all year | 001 |
| Aluminum, total [as Al] | daily maximum | report only (ug/L) | all year | 001 |
| Aluminum, total [as Al] | monthly average | report only (lb/d) | all year | 001 |
| Aluminum, total [as Al] | daily maximum | report only (lb/d) | all year | 001 |
| Hexachlorobutadiene | monthly average | report only (ug/L) | all year | 001 |
| Hexachlorobutadiene | daily maximum | report only (ug/L) | all year | 001 |
| Hexachlorobutadiene | monthly average | report only (lb/d) | all year | 001 |
| Hexachlorobutadiene | daily maximum | report only (lb/d) | all year | 001 |
| Ultraviolet light intensity | instantaneous minimum | report only (uW/cm2) | all year | 001 |
| Flow, in conduit or thru treatment plant | monthly average | report only (MGD) | all year | 001 |
| Flow, in conduit or thru treatment plant | daily maximum | report only (MGD) | all year | 001 |
| Chlorine, total residual | monthly average | ≤ .05 mg/L | all year | 001 |
| Chlorine, total residual | instantaneous maximum | ≤ .13 mg/L | all year | 001 |
| E. coli | instantaneous maximum | report only (#/100mL) | all year | 001 |
| Nitrogen, Total | monthly total | report only (lb) | all year | 001 |
| Nitrogen, Total | annual total | report only (lb) | all year | 001 |
| Nitrogen, Total | monthly total | report only (lb) | all year | 001 |
| Nitrogen, Total | annual total | ≤ 76318 lb | all year | 001 |
| Nitrogen, Ammonia Total | monthly total | report only (lb) | all year | 001 |
| Nitrogen, Ammonia Total | annual total | report only (lb) | all year | 001 |
| Nitrogen, Kjeldahl Total | monthly total | report only (lb) | all year | 001 |
| Nitrite Plus Nitrate Total | monthly total | report only (lb) | all year | 001 |
| Phosphorus, Total | monthly total | report only (lb) | all year | 001 |
| Phosphorus, Total | annual total | report only (lb) | all year | 001 |
| Phosphorus, Total | monthly total | report only (lb) | all year | 001 |
| Phosphorus, Total | annual total | ≤ 10185 lb | all year | 001 |
| Perfluorooctanoic acid (PFOA) | quarterly average | report only (ng/L) | all year | 001 |
| Perfluorooctanoic acid (PFOA) | daily maximum | report only (ng/L) | all year | 001 |
| Perfluorooctanoic acid (PFOA) | quarterly average | report only (lb/d) | all year | 001 |
| Perfluorooctanoic acid (PFOA) | daily maximum | report only (lb/d) | all year | 001 |
| Perfluorooctanesulfonate | quarterly average | report only (ng/L) | all year | 001 |
| Perfluorooctanesulfonate | daily maximum | report only (ng/L) | all year | 001 |
| Perfluorooctanesulfonate | quarterly average | report only (lb/d) | all year | 001 |
| Perfluorooctanesulfonate | daily maximum | report only (lb/d) | all year | 001 |
| Perfluorobutanesulfonic acid (PFBS) | quarterly average | report only (ng/L) | all year | 001 |
| Perfluorobutanesulfonic acid (PFBS) | daily maximum | report only (ng/L) | all year | 001 |
| Perfluorobutanesulfonic acid (PFBS) | quarterly average | report only (lb/d) | all year | 001 |
| Perfluorobutanesulfonic acid (PFBS) | daily maximum | report only (lb/d) | all year | 001 |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) | quarterly average | report only (ng/L) | all year | 001 |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) | daily maximum | report only (ng/L) | all year | 001 |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) | quarterly average | report only (lb/d) | all year | 001 |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) | daily maximum | report only (lb/d) | all year | 001 |
| Coliform, fecal general | geometric mean | ≤ 2000 #/100mL | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Coliform, fecal general | geometric mean | ≤ 200 #/100mL | May–Sep | 001 |
| Coliform, fecal general | instantaneous maximum | ≤ 10000 #/100mL | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Coliform, fecal general | instantaneous maximum | ≤ 1000 #/100mL | May–Sep | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 10 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 15 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 346.9 lb/d | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 520.4 lb/d | all year | 001 |
| BOD, carb-5 day, 20 deg C, percent removal | monthly average minimum | ≥ 85 % | all year | 001 |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year | 001 |
| Oxygen demand, chem. [high level] [COD] | instantaneous maximum | report only (mg/L) | all year | 002 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 002 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 002 |
| Solids, total suspended | instantaneous maximum | ≤ 100 mg/L | all year | 002 |
| Oil & Grease | instantaneous maximum | ≤ 30 mg/L | all year | 002 |
| Nitrogen, total [as N] | instantaneous maximum | report only (mg/L) | all year | 002 |
| Nitrogen, Kjeldahl, total [as N] | instantaneous maximum | report only (mg/L) | all year | 002 |
| Phosphorus, total [as P] | instantaneous maximum | report only (mg/L) | all year | 002 |
| Iron, total [as Fe] | instantaneous maximum | report only (mg/L) | all year | 002 |
| Oxygen demand, chem. [high level] [COD] | daily maximum | report only (mg/L) | all year | 003 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 003 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 003 |
| Solids, total suspended | instantaneous maximum | ≤ 100 mg/L | all year | 003 |
| Oil & Grease | instantaneous maximum | ≤ 30 mg/L | all year | 003 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 003 |
| Nitrogen, Kjeldahl, total [as N] | instantaneous maximum | report only (mg/L) | all year | 003 |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | all year | 003 |
| Iron, total [as Fe] | instantaneous maximum | report only (mg/L) | all year | 003 |
| Parameter | New limit | New or tighter | Median, last 12 months | × new limit |
|---|---|---|---|---|
| Copper, total [as Cu], daily maximum | 0.58 lb/d | new | 0.1 lb/d (8 values) | 0.172× |
| Copper, total [as Cu], daily maximum | 16.6 ug/L | new | 0.00588 ug/L (8 values) | 0.000354× |
| Copper, total [as Cu], monthly average | 0.32 lb/d | new | 0.095 lb/d (8 values) | 0.297× |
| Copper, total [as Cu], monthly average | 9.2 ug/L | new | 0.0045 ug/L (8 values) | 0.000489× |
| Hexachlorobutadiene, daily maximum | 0.041 ug/L | new | 0.28 ug/L (8 values, 8 below detection) | — |
| Hexachlorobutadiene, daily maximum | 0.001 lb/d | new | 7 lb/d (8 values, 8 below detection) | — |
| Hexachlorobutadiene, monthly average | 0.0009 lb/d | new | 5.5 lb/d (8 values, 8 below detection) | — |
| Hexachlorobutadiene, monthly average | 0.026 ug/L | new | 0.28 ug/L (8 values, 8 below detection) | — |
Cited limits by parameter: Pennsylvania's rules and the federal ones.
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