Clean Water Act discharge permit · NPDES NH0100986
PITTSFIELD WASTEWATER TREATMENT FACILITY, Pittsfield, NH: NPDES NH0100986 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 20Pollutants under a numeric limit
- 13Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
PITTSFIELD WASTEWATER TREATMENT FACILITY, held by PITTSFIELD W W T F, holds NPDES permit NH0100986, which discharges to Suncook River. EPA’s file records it issued September 25, 2002 and expiring November 30, 2007.
PITTSFIELD WASTEWATER TREATMENT FACILITY, Pittsfield, New Hampshire: Individual permit NH0100986, held by PITTSFIELD W W T F; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued September 25, 2002, term to November 30, 2007; discharges to SUNCOOK RIVER.
- Solids, total suspended: 8 limits, 65 violations of any kind, 56 effluent exceedances, latest August 31, 2023, largest 163% over the limit.
- pH: 2 limits, 23 violations of any kind, 21 effluent exceedances, latest April 30, 2009.
- Solids, suspended percent removal: 1 limit, 13 violations of any kind, 13 effluent exceedances, latest April 30, 2001, largest 560% over the limit.
- Phosphorus, Total As P: 0 limits, 9 violations of any kind, 9 effluent exceedances, latest May 31, 2016, largest 567% over the limit.
- Chlorine, total residual: 2 limits, 16 violations of any kind, 8 effluent exceedances, latest January 31, 2010, largest 81% over the limit.
- E. coli, thermotol, MF, MTEC: 2 limits, 10 violations of any kind, 8 effluent exceedances, latest June 30, 2001, largest 99,999% over the limit.
- NOEL Static Renewal 7Day Chronic Ceriodaphnia dubia: 1 limit, 9 violations of any kind, 7 effluent exceedances, latest September 30, 2022, largest 99,999% over the limit.
- Noel Statre 7Day Chronic Pimephales: 1 limit, 6 violations of any kind, 5 effluent exceedances, latest December 31, 2007, largest 99,999% over the limit.
- LC50 Static 48Hr Acute Ceriodaphnia dubia: 1 limit, 5 violations of any kind, 4 effluent exceedances, latest June 30, 2002, largest 32% over the limit.
- LC50 Static 48Hr Acute Pimephales promelas: 1 limit, 5 violations of any kind, 4 effluent exceedances, latest June 30, 2004, largest 31% over the limit.
- BOD, 5-day, percent removal: 1 limit, 3 violations of any kind, 2 effluent exceedances, latest August 31, 1999, largest 560% over the limit.
- BOD, carbonaceous [5 day, 20 C]: 8 limits, 3 violations of any kind, 1 effluent exceedance, latest December 31, 2002, largest 262% over the limit.
- Nitrogen, ammonia total [as N]: 0 limits, 1 violation of any kind, 1 effluent exceedance, latest June 30, 2015, largest 45% over the limit.
- Flow, in conduit or thru treatment plant: 2 limits, 4 violations of any kind, 0 effluent exceedances.
- Nickel, total recoverable: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- Cadmium, total recoverable: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- Chromium, total recoverable: 1 limit, 2 violations of any kind, 0 effluent exceedances.
- Zinc, total recoverable: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Aluminum, total recoverable: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Lead, total recoverable: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Copper, total recoverable: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Nitrogen, ammonia, total [as NH3]: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- August 17, 2023: Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment (EP6).
- June 8, 2021: Monitoring Violations - Improper Analysis or Lab Error (ST6).
New Hampshire holds 48 Publicly owned treatment works coverages of this permit type in EPA’s file; 15 were issued before NH0100986. PITTSFIELD W W T F holds 3 permits in New Hampshire.
Other permits held by PITTSFIELD W W T F
- PITTSFIELD WASTEWATER TREATMENT FACILITY, Pittsfield: NHG580022, issued December 1, 2021
- PITTSFIELD W W T F, Pittsfield: NHL100986, issued January 1, 2021
Coverages issued nearest NH0100986
- September 27, 2000: DOVER/HUCKLEBERRY HILL W W T F, Dover, NH0101311, held by DOVER-HUCKLEBERRY HILL W W T P
- September 29, 2000: CITY OF SOMERSWORTH, Somersworth, NH0100277, held by SOMERSWORTH W P C F
- December 5, 2000: FARMINGTON WWTP, Farmington, NH0100854, held by FARMINGTON W W T P
- January 31, 2002: GREENVILLE W W T F, Greenville, NH0100919
- June 7, 2002: MERIDEN VILLAGE WATER DISTRICT, Plainfield, NH0101168, held by Meriden Village Water District
- November 20, 2002: TROY WASTEWATER TREATMENT PLANT, Troy, NH0101052, held by TROY W W T P
- August 11, 2004: DERRY W W T P, Derry, NH0100056
- November 23, 2005: LEBANON WWTF, West Lebanon, NH0100366, held by LEBANON W W T F
- November 23, 2005: WATERVILLE VALLEY ADVANCED W W T F, Waterville Valley, NH0100781, held by WATERVILLE VALLEY W W T P
- April 3, 2006: WHITEFIELD WWTP, Whitefield, NH0100510, held by WHITEFIELD W W T P
PITTSFIELD WASTEWATER TREATMENT FACILITY among its neighbors
EPA’s permit file holds 3 discharge permits in the Perry Brook-Suncook River subwatershed (HUC 010700060501), NH0100986 among them. Its county holds 70, 6 of them major permits; NH0100986 is a major permit.
Other permits in the Perry Brook-Suncook River subwatershed (HUC 010700060501)
- PITTSFIELD W W T F, Pittsfield: NHL100986, minor permit, permit term to December 31, 2025
- PITTSFIELD WASTEWATER TREATMENT FACILITY, Pittsfield: NHG580022, minor permit, discharging to SUNCOOK RIVER, permit term to November 30, 2026
Identity
| Facility as filed | PITTSFIELD WASTEWATER TREATMENT FACILITY |
|---|---|
| Permittee as filed | PITTSFIELD W W T F |
| NPDES ID | NH0100986 |
| 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 25, 2002 |
| Expiration date | November 30, 2007 |
| Address | Pittsfield, NH 03263 |
| Receiving water | SUNCOOK RIVER |
| Subwatershed | Perry Brook-Suncook River (HUC 010700060501) |
Effluent limits and exceedances
- 22Pollutants on file
- 20Under a numeric limit
- 22With a violation of any kind
- 13With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 8 | 65 | 56 | August 31, 2023 | 163% over the limit |
| pH | 2 | 23 | 21 | April 30, 2009 | |
| Solids, suspended percent removal | 1 | 13 | 13 | April 30, 2001 | 560% over the limit |
| Phosphorus, Total As P | 0 | 9 | 9 | May 31, 2016 | 567% over the limit |
| Chlorine, total residual | 2 | 16 | 8 | January 31, 2010 | 81% over the limit |
| E. coli, thermotol, MF, MTEC | 2 | 10 | 8 | June 30, 2001 | 99,999% over the limit |
| NOEL Static Renewal 7Day Chronic Ceriodaphnia dubia | 1 | 9 | 7 | September 30, 2022 | 99,999% over the limit |
| Noel Statre 7Day Chronic Pimephales | 1 | 6 | 5 | December 31, 2007 | 99,999% over the limit |
| LC50 Static 48Hr Acute Ceriodaphnia dubia | 1 | 5 | 4 | June 30, 2002 | 32% over the limit |
| LC50 Static 48Hr Acute Pimephales promelas | 1 | 5 | 4 | June 30, 2004 | 31% over the limit |
| BOD, 5-day, percent removal | 1 | 3 | 2 | August 31, 1999 | 560% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 8 | 3 | 1 | December 31, 2002 | 262% over the limit |
| Nitrogen, ammonia total [as N] | 0 | 1 | 1 | June 30, 2015 | 45% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 4 | 0 | ||
| Nickel, total recoverable | 1 | 2 | 0 | ||
| Cadmium, total recoverable | 1 | 2 | 0 | ||
| Chromium, total recoverable | 1 | 2 | 0 | ||
| Zinc, total recoverable | 1 | 1 | 0 | ||
| Aluminum, total recoverable | 1 | 1 | 0 | ||
| Lead, total recoverable | 1 | 1 | 0 | ||
| Copper, total recoverable | 1 | 1 | 0 | ||
| Nitrogen, ammonia, total [as NH3] | 1 | 1 | 0 |
Inspections, violations and enforcement
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| August 17, 2023 | Dry-weather SSO, no discharge to waters of the U.S., not permit compliant, no endangerment | EP6 |
| June 8, 2021 | Monitoring Violations - Improper Analysis or Lab Error | ST6 |
Inspections
EPA’s inspection file holds no inspection for NPDES NH0100986.
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
EPA’s informal enforcement file holds no action for NPDES NH0100986.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.