Clean Water Act discharge permit · NPDES NHR1001AS

PEIRCE ISLAND WWTF UPGRADE, Portsmouth, NH: NPDES NHR1001AS discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
0Pollutants under a numeric limit
0Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

PEIRCE ISLAND WWTF UPGRADE, held by City of Portsmouth, NH, holds NPDES permit NHR1001AS. EPA’s file records it issued August 6, 2021 and expiring February 15, 2022.

PEIRCE ISLAND WWTF UPGRADE, Portsmouth, New Hampshire: Coverage under a general permit NHR1001AS, held by City of Portsmouth, NH; Construction stormwater; Administratively continued (past its expiration date and still in force until reissued); issued August 6, 2021, term to February 15, 2022, by U.S. EPA.

New Hampshire holds 1,239 Construction stormwater coverages of this permit type in EPA’s file; 112 were issued before NHR1001AS.

Coverages issued nearest NHR1001AS

August 4, 2021: PROMOCENTRIC, Newmarket, NHR1001AM, held by Masaran Group, LLC
August 4, 2021: PLEASANT VIEW FARM, Epping`, NHR1001AN, held by Lewis Builders Development, Inc
August 4, 2021: COMMERCIAL RETAIL & WAREHOUSE, Newfields, NHR1001AO, held by Hayden Equipment c/o John Hayden
August 4, 2021: SOMERSWORTH FIRE STATION RENOVATIONS, Somersworth, NHR1001AP, held by Harvey Construction Corporation
August 6, 2021: GLENNCLIFF HOME POTABLE WATER SYSTEM - PHASE 2, Benton, NHR1001AR, held by ME Latulippe Inc
August 6, 2021: CHESTER GRAVEL PIT, Chester, NHR1001AT, held by Groundhog Landscaping, Inc.
August 23, 2021: 2021 D108 TRANSMISSION LINE STRUCTURE REPLACEMENT PROJECT, Keene, NHR1001B3, held by Michels Power, Inc.
August 24, 2021: APPLE RIDGE APARTMENTS - PHASE 2, Rochester, NHR1001B5, held by Alvin J. Coleman & Son, Inc.
August 25, 2021: NH EYE ASSOCIATES, Manchester, NHR1001B6, held by Bennett Landscaping LLC
August 31, 2021: PENNICHUCK WATER SOLAR, Nashua, NHR1001BB, held by iSUN Energy, LLC

Other permits in Portsmouth

100 DURGIN LANE, Portsmouth: 01R10I044, minor permit, permit term to February 16, 2027
100 DURGIN LANE, Portsmouth: 01R10I045, minor permit, permit term to February 16, 2027
100 NEW HAMPSHIRE AVENUE, Portsmouth: NHR1001US, minor permit, permit term to February 16, 2027
100 NEW HAMPSHIRE AVENUE, Portsmouth: NHR1001UT, minor permit, permit term to February 16, 2027
105 BARTLETT STREET - MULTIFAMILY DEVELOPMENT, Portsmouth: NHR10020X, minor permit, permit term to February 16, 2027
105 BARTLETT STREET - MULTIFAMILY DEVELOPMENT, Portsmouth: NHR10021B, minor permit, permit term to February 16, 2027
200 CHASE DRIVE, Portsmouth: NHR100247, minor permit, permit term to February 16, 2027
2021 E194, U181, & 3135 TRANSMISSION LINE STRUCTURE REPLACEMENT, Portsmouth: NHR1001F9, minor permit, permit term to February 16, 2027
2021 E194, U181, & 3135 TRANSMISSION LINE STRUCTURE REPLACEMENT PROJECT, Portsmouth: NHR1001EG, minor permit, permit term to February 15, 2022
282 CORPORATE DRIVE, Portsmouth: 01R10I02P, minor permit, permit term to February 16, 2027

What the register holds for PEIRCE ISLAND WWTF UPGRADE: its NPDES ID, its permit type and status, its dates, its address in Portsmouth, New Hampshire. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES NHR1001AS.

Identity

Facility as filed	PEIRCE ISLAND WWTF UPGRADE
Permittee as filed	City of Portsmouth, NH
NPDES ID	NHR1001AS
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	Construction stormwater
Issued	August 6, 2021
Expiration date	February 15, 2022
Issuing agency	U.S. EPA
Address	Portsmouth, NH 03801
Receiving water impaired	303(D) Listed

Effluent limits and exceedances

0Pollutants on file
0Under a numeric limit
0With a violation of any kind
0With an effluent exceedance

EPA’s limits and effluent violation files hold no pollutant row for NPDES NHR1001AS.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES NHR1001AS.

Inspections

EPA’s inspection file holds no inspection for NPDES NHR1001AS.

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 NHR1001AS.

Watch this permit

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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

Of the 57 storm water construction permits in Portsmouth, 0.0% have a violation on file, and PEIRCE ISLAND WWTF UPGRADE is counted among them. Among those same 57 permits, 3.5% carry an issue date earlier than this permit. Portsmouth's storm water construction permits on EPA's NPDES register total 57, with PEIRCE ISLAND WWTF UPGRADE included.