Clean Water Act discharge permit · NPDES NH0100544
SUNAPEE W W T F, Sunapee, NH: NPDES NH0100544 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 23Pollutants under a numeric limit
- 14Pollutants with an effluent exceedance
SUNAPEE W W T F holds NPDES permit NH0100544, which discharges to Sugar River. EPA’s file records it issued February 21, 2007 and expiring April 30, 2012. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | SUNAPEE W W T F |
|---|---|
| Permittee as filed | SUNAPEE W W T F |
| NPDES ID | NH0100544 |
| 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 | February 21, 2007 |
| Expiration date | April 30, 2012 |
| Address | Sunapee, NH 03782 |
| Receiving water | SUGAR RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Long Pond Brook-Sugar River (HUC 010801060405) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 26Pollutants on file
- 23Under a numeric limit
- 26With a violation of any kind
- 14With 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 |
|---|---|---|---|---|---|
| pH | 2 | 38 | 32 | March 31, 2015 | |
| E. coli, thermotol, MF, MTEC | 2 | 40 | 20 | July 31, 2021 | 99,999% over the limit |
| BOD, 5-day, 20 deg. C | 7 | 92 | 16 | July 31, 2023 | 244% over the limit |
| Solids, total suspended | 7 | 69 | 15 | March 31, 2020 | 736% over the limit |
| Phosphorus, total [as P] | 8 | 13 | 11 | July 31, 2023 | 175% over the limit |
| NOEL Static Renewal 7Day Chronic Ceriodaphnia dubia | 1 | 11 | 6 | December 31, 2022 | 99,999% over the limit |
| Chlorine, total residual | 2 | 10 | 4 | March 31, 2014 | 3,446% over the limit |
| BOD, 5-day, percent removal | 1 | 12 | 3 | July 31, 2023 | 33% over the limit |
| LC50 Static 48Hr Acute Pimephales promelas | 2 | 8 | 3 | March 31, 2007 | 32% over the limit |
| Oil & Grease | 1 | 8 | 2 | March 31, 2003 | 189% over the limit |
| Lead, total recoverable | 3 | 7 | 2 | June 30, 2007 | 108% over the limit |
| Solids, suspended percent removal | 1 | 6 | 2 | January 31, 2010 | 53% over the limit |
| Noel Statre 7Day Chronic Pimephales | 2 | 7 | 1 | June 30, 2007 | 99,999% over the limit |
| LC50 Static 48Hr Acute Ceriodaphnia dubia | 1 | 6 | 1 | June 30, 2016 | 37% over the limit |
| Aluminum, total recoverable | 1 | 17 | 0 | ||
| Nitrogen, ammonia total [as N] | 2 | 13 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 8 | 0 | ||
| Hardness, total [as CaCO3] | 1 | 6 | 0 | ||
| Zinc, total recoverable | 1 | 6 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 0 | 6 | 0 | ||
| Cadmium, total recoverable | 3 | 5 | 0 | ||
| Nickel, total recoverable | 1 | 5 | 0 | ||
| Chromium, total recoverable | 1 | 5 | 0 | ||
| Copper, total recoverable | 1 | 5 | 0 | ||
| Nitrogen, total [as N] | 0 | 4 | 0 | ||
| Nitrite + Nitrate total [as N] | 0 | 2 | 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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| August 21, 2019 | Monitoring Violations - Improper Analysis or Lab Error | ST6 |
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
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, NH0100544.
Start the watch
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- One watershed — $2,990/year
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How we handle your data → Privacy
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 NH0100544 there.
Nearby on the register
- Discharge permits in Sunapee
- Every permit record in Sunapee, A to Z
- Discharge permits in New Hampshire
- Every permit record in New Hampshire, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.