Passage Data · Check a report · Use it from your AI
Sewage treatment plant, major discharger, Lancaster, New Hampshire. NPDES permit NH0100145 expired Sep 30, 2025; its limits still apply. Last 12 months: over a limit 9 times (last June 2026), 32 required values missing, 2 of 12 reports late. Source: EPA ECHO, Oct 22, 2026.
| Period ending | Parameter | Reported | Limit | Over by |
|---|---|---|---|---|
| December 2025 | Solids, suspended percent removal, minimum | 81 % | ≥ 85 % | 27% |
| January 2026 | BOD, 5-day, percent removal, minimum | 82 % | ≥ 85 % | 20% |
| March 2026 | BOD, 5-day, percent removal, minimum | 50 % | ≥ 85 % | 233% |
| March 2026 | Solids, suspended percent removal, minimum | 82 % | ≥ 85 % | 20% |
| April 2026 | BOD, 5-day, percent removal, minimum | 73 % | ≥ 85 % | 80% |
| April 2026 | Solids, suspended percent removal, minimum | 45 % | ≥ 85 % | 267% |
| April 2026 | Solids, total suspended, daily maximum | 563 lb/d | ≤ 500 lb/d | 13% |
| April 2026 | Solids, total suspended, weekly average | 563 lb/d | ≤ 450 lb/d | 25% |
| June 2026 | BOD, 5-day, percent removal, minimum | 84 % | ≥ 85 % | 7% |
| Parameter | Statistic | Limit | Months |
|---|---|---|---|
| Temperature, water deg. centigrade | daily maximum | report only (deg C) | Jul–Sep |
| 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 | ≤ 300 lb/d | all year |
| BOD, 5-day, 20 deg. C | daily maximum | ≤ 500 lb/d | all year |
| BOD, 5-day, 20 deg. C | weekly average | ≤ 450 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) | Jul–Sep |
| 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 | ≤ 300 lb/d | all year |
| Solids, total suspended | daily maximum | ≤ 500 lb/d | all year |
| Solids, total suspended | weekly average | ≤ 450 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] | daily maximum | report only (mg/L) | Jul–Sep |
| Nitrogen, ammonia total [as N] | daily maximum | report only (mg/L) | Jul–Sep |
| 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 |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | Jul–Sep |
| Carbon, tot organic [TOC] | daily maximum | report only (mg/L) | Jul–Sep |
| Carbon, dissolved organic [as C] | daily maximum | report only (mg/L) | Jul–Sep |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | Jul–Sep |
| Hardness, total [as CaCO3] | daily maximum | report only (mg/L) | Jul–Sep |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | Jul–Sep |
| Cadmium, total [as Cd] | daily maximum | report only (mg/L) | Jul–Sep |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | Jul–Sep |
| Copper, total [as Cu] | daily maximum | report only (mg/L) | Jul–Sep |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | Jul–Sep |
| Lead, total [as Pb] | daily maximum | report only (mg/L) | Jul–Sep |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | Jul–Sep |
| Nickel, total [as Ni] | daily maximum | report only (mg/L) | Jul–Sep |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | Jul–Sep |
| Zinc, total [as Zn] | daily maximum | report only (mg/L) | Jul–Sep |
| Aluminum, total [as Al] | daily maximum | report only (mg/L) | Jul–Sep |
| Aluminum, total [as Al] | daily maximum | report only (mg/L) | Jul–Sep |
| 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 | ≤ 1.2 MGD | all year |
| Chlorine, total residual | monthly average | ≤ 1 mg/L | all year |
| Chlorine, total residual | daily maximum | ≤ 1 mg/L | all year |
| BOD, 5-day, percent removal | minimum | ≥ 85 % | all year |
| Solids, suspended percent removal | minimum | ≥ 85 % | all year |
| LC50 Static 48Hr Acute Ceriodaphnia dubia | monthly average minimum | ≥ 50 % | Jul–Sep |
| LC50 Static 48Hr Acute Pimephales promelas | monthly average minimum | ≥ 50 % | Jul–Sep |
Cited limits by parameter: New Hampshire's rules and the federal ones.
· Save this facility as a site · Superfund sites nearby · Your permits on one board
On EPA ECHO: Facility report · DMR history
Your permit document is the final word. As JSON: /api/v1/permits/NH0100145 · MCP: https://passage-data.com/mcp