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Sewerage Systems, Nicholson, Pennsylvania. NPDES permit PA0064106 expired Apr 30, 2025; its limits still apply. Last 12 months: over a limit 19 times (last June 2026), 29 required values missing, 2 of 21 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| November 2025 | Oxygen, dissolved [DO], instantaneous minimum | 4.3 mg/L | ≥ 5 mg/L | 14% |
| February 2026 | BOD, carb-5 day, 20 deg C, percent removal, monthly average minimum | 74 % | ≥ 85 % | 73% |
| February 2026 | BOD, carbonaceous [5 day, 20 C], monthly average | 43 mg/L | ≤ 25 mg/L | 72% |
| February 2026 | BOD, carbonaceous [5 day, 20 C], weekly average | 79 mg/L | ≤ 40 mg/L | 98% |
| February 2026 | Coliform, fecal general, geometric mean | > 196 #/100mL | ≤ 2000 #/100mL | — |
| February 2026 | Coliform, fecal general, instantaneous maximum | > 2420 #/100mL | ≤ 10000 #/100mL | — |
| February 2026 | Nitrogen, ammonia total [as N], monthly average | 10.1 mg/L | ≤ 9 mg/L | 12% |
| February 2026 | Solids, suspended percent removal, monthly average minimum | 82 % | ≥ 85 % | 20% |
| March 2026 | Coliform, fecal general, geometric mean | > 52 #/100mL | ≤ 2000 #/100mL | — |
| March 2026 | Coliform, fecal general, instantaneous maximum | > 2420 #/100mL | ≤ 10000 #/100mL | — |
| March 2026 | Nitrogen, ammonia total [as N], monthly average | 12.3 mg/L | ≤ 9 mg/L | 37% |
| March 2026 | Oxygen, dissolved [DO], instantaneous minimum | .91 mg/L | ≥ 5 mg/L | 82% |
| April 2026 | Coliform, fecal general, geometric mean | > 16 #/100mL | ≤ 2000 #/100mL | — |
| April 2026 | Coliform, fecal general, instantaneous maximum | > 2420 #/100mL | ≤ 10000 #/100mL | — |
| April 2026 | Nitrogen, ammonia total [as N], monthly average | 12.3 mg/L | ≤ 9 mg/L | 37% |
| May 2026 | Nitrogen, ammonia total [as N], monthly average | 7.9 mg/L | ≤ 3 mg/L | 163% |
| May 2026 | Oxygen, dissolved [DO], instantaneous minimum | 2.79 mg/L | ≥ 5 mg/L | 44% |
| June 2026 | Nitrogen, ammonia total [as N], monthly average | 6.3 mg/L | ≤ 3 mg/L | 110% |
| June 2026 | Oxygen, dissolved [DO], instantaneous minimum | 3.31 mg/L | ≥ 5 mg/L | 34% |
| Parameter | Statistic | Limit | Months | Outfall |
|---|---|---|---|---|
| Oxygen, dissolved [DO] | instantaneous minimum | ≥ 5 mg/L | all year | 001 |
| pH | instantaneous minimum | ≥ 6 SU | all year | 001 |
| pH | instantaneous maximum | ≤ 9 SU | all year | 001 |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year | 001 |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year | 001 |
| Solids, total suspended | monthly average | ≤ 35 lb/d | all year | 001 |
| Solids, total suspended | weekly average | ≤ 53 lb/d | all year | 001 |
| Nitrogen, total [as N] | annual average | report only (mg/L) | all year | 001 |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrogen, total [as N] | annual average | report only (lb/d) | all year | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 3 mg/L | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 9 mg/L | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 3.5 lb/d | May–Oct | 001 |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 10.5 lb/d | Jan, Feb, Mar, Apr, Nov, Dec | 001 |
| Nitrogen, Kjeldahl, total [as N] | annual average | report only (mg/L) | all year | 001 |
| Nitrogen, Kjeldahl, total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrogen, Kjeldahl, total [as N] | annual average | report only (lb/d) | all year | 001 |
| Nitrite + Nitrate total [as N] | annual average | report only (mg/L) | all year | 001 |
| Nitrite + Nitrate total [as N] | daily maximum | report only (mg/L) | all year | 001 |
| Nitrite + Nitrate total [as N] | annual average | report only (lb/d) | all year | 001 |
| Phosphorus, total [as P] | annual 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] | annual average | 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 | ≤ .16 mg/L | all year | 001 |
| Chlorine, total residual | instantaneous maximum | ≤ .37 mg/L | all year | 001 |
| Coliform, fecal general | geometric mean | ≤ 200 #/100mL | May–Sep | 001 |
| Coliform, fecal general | geometric mean | ≤ 2000 #/100mL | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| Coliform, fecal general | instantaneous maximum | ≤ 1000 #/100mL | May–Sep | 001 |
| Coliform, fecal general | instantaneous maximum | ≤ 10000 #/100mL | Jan, Feb, Mar, Apr, Oct, Nov, Dec | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 25 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 40 mg/L | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | ≤ 29 lb/d | all year | 001 |
| BOD, carbonaceous [5 day, 20 C] | weekly average | ≤ 47 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 |
| Solids, total suspended | monthly average | report only (mg/L) | all year | 101 |
| Solids, total suspended | daily maximum | report only (mg/L) | all year | 101 |
| Solids, total suspended | monthly average | report only (lb/d) | all year | 101 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (mg/L) | all year | 101 |
| BOD, carbonaceous [5 day, 20 C] | daily maximum | report only (mg/L) | all year | 101 |
| BOD, carbonaceous [5 day, 20 C] | monthly average | report only (lb/d) | all year | 101 |
Cited limits by parameter: Pennsylvania's rules and the federal ones.
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