Clean Water Act discharge permit · NPDES NH0100382
HINSDALE WWTP, Hinsdale, NH: NPDES NH0100382 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 20Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
HINSDALE WWTP, held by HINSDALE TOWN OF, holds NPDES permit NH0100382, which discharges to Ashuelot River. EPA’s file records it issued September 28, 2007 and expiring November 30, 2012. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | HINSDALE WWTP |
|---|---|
| Permittee as filed | HINSDALE TOWN OF |
| NPDES ID | NH0100382 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | September 28, 2007 |
| Expiration date | November 30, 2012 |
| Address | Hinsdale, NH 03451 |
| Receiving water | ASHUELOT RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Ashuelot River (HUC 010802010403) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 21Pollutants on file
- 20Under a numeric limit
- 8With a violation of any kind
- 6With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 7 | 38 | 29 | June 30, 2011 | 81% over the limit |
| BOD, 5-day, percent removal | 1 | 25 | 22 | February 29, 2020 | 157% over the limit |
| Solids, suspended percent removal | 1 | 13 | 13 | March 31, 2011 | 175% over the limit |
| Solids, total suspended | 7 | 10 | 9 | March 31, 2008 | 187% over the limit |
| E. coli, thermotol, MF, MTEC | 2 | 8 | 6 | December 31, 2020 | 99,999% over the limit |
| pH | 2 | 1 | 1 | November 30, 2002 | |
| Nitrogen, total [as N] | 0 | 4 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 2 | 0 | ||
| Nitrogen, ammonia total [as N] | 1 | 0 | 0 | ||
| Phosphorus, total [as P] | 1 | 0 | 0 | ||
| Hardness, total [as CaCO3] | 1 | 0 | 0 | ||
| Nickel, total recoverable | 1 | 0 | 0 | ||
| Zinc, total recoverable | 1 | 0 | 0 | ||
| Aluminum, total recoverable | 1 | 0 | 0 | ||
| Cadmium, total recoverable | 1 | 0 | 0 | ||
| Lead, total recoverable | 1 | 0 | 0 | ||
| Chromium, total recoverable | 1 | 0 | 0 | ||
| Copper, total recoverable | 1 | 0 | 0 | ||
| Chlorine, total residual | 1 | 0 | 0 | ||
| LC50 Static 48Hr Acute Ceriodaphnia dubia | 1 | 0 | 0 | ||
| LC50 Static 48Hr Acute Pimephales promelas | 1 | 0 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES NH0100382.
Velarion’s copy of EPA’s ICIS-NPDES files does not yet include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID NH0100382 there.
Nearby on the register
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- Every permit record in Hinsdale, A to Z
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- Every permit record in New Hampshire, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.