Clean Water Act discharge permit · NPDES NHR05J01L
PEIRCE ISLAND WASTEWATER TREATMENT FACILITY, Portsmouth, NH: NPDES NHR05J01L discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 7Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
PEIRCE ISLAND WASTEWATER TREATMENT FACILITY, held by City of Portsmouth, holds NPDES permit NHR05J01L. EPA’s file records it issued October 21, 2021 and expiring February 28, 2026. 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 | PEIRCE ISLAND WASTEWATER TREATMENT FACILITY |
|---|---|
| Permittee as filed | City of Portsmouth |
| NPDES ID | NHR05J01L |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Industrial stormwater |
| Issued | October 21, 2021 |
| Expiration date | February 28, 2026 |
| Issuing agency | U.S. EPA |
| Address | Portsmouth, NH 03801 |
| Receiving water impaired | 303(D) Listed |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 7Pollutants on file
- 7Under a numeric limit
- 2With a violation of any kind
- 0With 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 |
|---|---|---|---|---|---|
| 2,3,7,8-Tetrachlorodibenzo-p-dioxin | 2 | 1 | 0 | ||
| Polychlorinated biphenyls [PCBs] | 2 | 1 | 0 | ||
| pH | 4 | 0 | 0 | ||
| Solids, total suspended | 2 | 0 | 0 | ||
| Enterococci | 2 | 0 | 0 | ||
| Mercury, total [as Hg] | 2 | 0 | 0 | ||
| Chemical Oxygen Demand [COD] | 2 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES NHR05J01L.
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 NHR05J01L.
Velarion’s copy of EPA’s ICIS-NPDES files does not 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 NHR05J01L there.
Nearby on the register
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- Every permit record in Portsmouth, 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 15, 2026.