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Sewage treatment plant, major discharger, Newport, New Hampshire. NPDES permit NH0100200 expired Aug 31, 2025; its limits still apply. Last 12 months: over a limit 32 times (last September 2026). Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| October 2025 | Aluminum, total recoverable, monthly average | 170 ug/L | ≤ 87 ug/L | 95% |
| November 2025 | Aluminum, total recoverable, monthly average | 106 ug/L | ≤ 87 ug/L | 22% |
| November 2025 | Copper, total recoverable, monthly average | 14.7 ug/L | ≤ 13.2 ug/L | 11% |
| November 2025 | Phosphorus, total [as P], monthly average | 4.4 mg/L | ≤ 3.6 mg/L | 22% |
| December 2025 | Copper, total recoverable, daily maximum | 21 ug/L | ≤ 17.2 ug/L | 22% |
| December 2025 | Copper, total recoverable, monthly average | 19 ug/L | ≤ 13.2 ug/L | 44% |
| December 2025 | Nitrogen, ammonia total [as N], monthly average | 28 mg/L | ≤ 26.1 mg/L | 7% |
| December 2025 | Phosphorus, total [as P], monthly average | 4 mg/L | ≤ 3.6 mg/L | 11% |
| January 2026 | Copper, total recoverable, daily maximum | 22 ug/L | ≤ 17.2 ug/L | 28% |
| January 2026 | Copper, total recoverable, monthly average | 20.8 ug/L | ≤ 13.2 ug/L | 58% |
| January 2026 | Nitrogen, ammonia total [as N], monthly average | 31.5 mg/L | ≤ 26.1 mg/L | 21% |
| January 2026 | Phosphorus, total [as P], monthly average | 4 mg/L | ≤ 3.6 mg/L | 11% |
| February 2026 | Copper, total recoverable, daily maximum | 32 ug/L | ≤ 17.2 ug/L | 86% |
| February 2026 | Copper, total recoverable, monthly average | 27 ug/L | ≤ 13.2 ug/L | 105% |
| February 2026 | Nitrogen, ammonia total [as N], monthly average | 31 mg/L | ≤ 26.1 mg/L | 19% |
| March 2026 | Copper, total recoverable, daily maximum | 24 ug/L | ≤ 17.2 ug/L | 40% |
| March 2026 | Copper, total recoverable, monthly average | 18.3 ug/L | ≤ 13.2 ug/L | 39% |
| March 2026 | LC50 Static 48Hr Acute Pimephales promelas, monthly average minimum | 72.97 % | ≥ 100 % | 27% |
| March 2026 | Nitrogen, ammonia total [as N], monthly average | 28 mg/L | ≤ 26.1 mg/L | 7% |
| April 2026 | E. coli, thermotol, MF, MTEC, daily maximum | 563.5 #/100mL | ≤ 406 #/100mL | 39% |
| June 2026 | Copper, total recoverable, daily maximum | 48 ug/L | ≤ 17.2 ug/L | 179% |
| June 2026 | Copper, total recoverable, monthly average | 17.2 ug/L | ≤ 13.2 ug/L | 30% |
| August 2026 | Aluminum, total recoverable, monthly average | 92 ug/L | ≤ 87 ug/L | 6% |
| September 2026 | Aluminum, total recoverable, monthly average | 154 ug/L | ≤ 87 ug/L | 77% |
| September 2026 | Copper, total recoverable, daily maximum | 20 ug/L | ≤ 17.2 ug/L | 16% |
| September 2026 | LC50 Static 48Hr Acute Pimephales promelas, monthly average minimum | 71.13 % | ≥ 100 % | 29% |
| September 2026 | Lead, total recoverable, monthly average | < 3.2 ug/L | ≤ 2.3 ug/L | 39% |
| September 2026 | NOEL Static Renewal 7Day Chronic Ceriodaphnia dubia, monthly average minimum | < 8.9 % | ≥ 17.8 % | — |
| September 2026 | Solids, suspended percent removal, monthly average minimum | 65 % | ≥ 85 % | 133% |
| September 2026 | Solids, total suspended, daily maximum | 60 mg/L | ≤ 50 mg/L | 20% |
| September 2026 | Solids, total suspended, monthly average | 38 mg/L | ≤ 30 mg/L | 27% |
| September 2026 | Solids, total suspended, weekly average | 60 mg/L | ≤ 45 mg/L | 33% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | all year |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 30 mg/L | all year |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 45 mg/L | all year |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 50 mg/L | all year |
| BOD, 5-day, 20 deg. C | monthly average | ≤ 325 lb/d | all year |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 542 lb/d | all year |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 488 lb/d | all year |
| BOD, 5-day, 20 deg. C | monthly average | report only (mg/L) | all year |
| pH | minimum | ≥ 6.5 SU | all year |
| pH | maximum | ≤ 8 SU | all year |
| pH | daily maximum | report only (SU) | all year |
| Solids, total suspended | monthly average | ≤ 30 mg/L | all year |
| Solids, total suspended | weekly average | ≤ 45 mg/L | all year |
| Solids, total suspended | daily maximum | ≤ 50 mg/L | all year |
| Solids, total suspended | monthly average | ≤ 325 lb/d | all year |
| Solids, total suspended | daily maximum | ≤ 542 lb/d | all year |
| Solids, total suspended | weekly average | ≤ 488 lb/d | all year |
| Solids, total suspended | monthly average | report only (mg/L) | all year |
| Nitrogen, total [as N] | monthly average | report only (mg/L) | all year |
| Nitrogen, total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, total [as N] | monthly average | report only (lb/d) | all year |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 6.4 mg/L | May–Oct |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 24.3 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 33.5 mg/L | May–Oct |
| Nitrogen, ammonia total [as N] | monthly average | ≤ 26.1 mg/L | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | May–Oct |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | May–Oct |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | report only (lb/d) | May–Oct |
| Nitrogen, ammonia total [as N] | monthly average | report only (lb/d) | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, ammonia total [as N] | monthly average | report only (lb/d) | May–Oct |
| Nitrogen, ammonia total [as N] | monthly average | report only (lb/d) | Jan, Feb, Mar, Apr, Nov, Dec |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | all year |
| Nitrogen, Kjeldahl, total [as N] | monthly average | report only (mg/L) | all year |
| Nitrogen, Kjeldahl, 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 | ≤ 1 mg/L | Jan, Feb, Mar, Nov, Dec |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | Apr–Oct |
| Phosphorus, total [as P] | monthly average | report only (mg/L) | Apr–Oct |
| Phosphorus, total [as P] | monthly average | ≤ 3.6 mg/L | Jan, Feb, Mar, Nov, Dec |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Apr–Oct |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Nov, Dec |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Apr–Oct |
| Phosphorus, total [as P] | daily maximum | report only (mg/L) | Jan, Feb, Mar, Nov, Dec |
| Phosphorus, total [as P] | monthly average | ≤ 5.2 lb/d | Apr–Oct |
| Phosphorus, total [as P] | monthly average | report only (lb/d) | Jan, Feb, Mar, Nov, Dec |
| Phosphorus, total [as P] | monthly average | ≤ 22.5 lb/d | Apr–Oct |
| Phosphorus, total [as P] | monthly average | report only (lb/d) | Jan, Feb, Mar, Nov, Dec |
| Phosphorus, total [as P] | daily maximum | report only (lb/d) | Apr–Oct |
| Phosphorus, total [as P] | daily maximum | report only (lb/d) | Jan, Feb, Mar, Nov, Dec |
| Phosphorus, total [as P] | daily maximum | report only (lb/d) | Apr–Oct |
| Phosphorus, total [as P] | daily maximum | report only (lb/d) | Jan, Feb, Mar, Nov, Dec |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | all year |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | all year |
| Carbon, dissolved organic [as C] | daily maximum | report only (mg/L) | all year |
| Carbon, dissolved organic [as C] | daily maximum | report only (mg/L) | all year |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | all year |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | all year |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | all year |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | all year |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | all year |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | all year |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | all year |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | all year |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | all year |
| Aluminum, total recoverable | monthly average | ≤ 87 ug/L | all year |
| Aluminum, total recoverable | daily maximum | report only (ug/L) | all year |
| Aluminum, total [as Al] | daily maximum | report only (mg/L) | all year |
| Aluminum, total [as Al] | daily maximum | report only (mg/L) | all year |
| Lead, total recoverable | monthly average | ≤ 2.3 ug/L | all year |
| Lead, total recoverable | daily maximum | report only (ug/L) | all year |
| Copper, total recoverable | monthly average | ≤ 13.2 ug/L | all year |
| Copper, total recoverable | daily maximum | ≤ 17.2 ug/L | all year |
| E. coli, thermotol, MF, MTEC | monthly geometric mean | ≤ 126 #/100mL | all year |
| E. coli, thermotol, MF, MTEC | daily 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 | rolling average | ≤ 1.3 MGD | all year |
| BOD, 5-day, percent removal | monthly average minimum | ≥ 85 % | all year |
| Solids, suspended percent removal | monthly average minimum | ≥ 85 % | all year |
| LC50 Static 48Hr Acute Ceriodaphnia dubia | monthly average minimum | ≥ 100 % | all year |
| LC50 Static 48Hr Acute Pimephales promelas | monthly average minimum | ≥ 100 % | all year |
| NOEL Static Renewal 7Day Chronic Ceriodaphnia dubia | monthly average minimum | ≥ 17.8 % | all year |
| Noel Statre 7Day Chronic Pimephales | monthly average minimum | ≥ 17.8 % | all year |
Cited limits by parameter: New Hampshire'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/NH0100200 · MCP: https://passage-data.com/mcp