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Clean Water Act discharge permit · NPDES MAR05C466

NEWBURYPORT WASTEWATER TREATMENT PLANT, Newburyport, MA: NPDES MAR05C466 discharge permit, effluent exceedances, inspections, penalties

NEWBURYPORT WASTEWATER TREATMENT PLANT, held by Newburyport WWTP, holds NPDES permit MAR05C466. 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.

What the register holds for NEWBURYPORT WASTEWATER TREATMENT PLANT: its NPDES ID, its permit type and status, its its address in Newburyport, Massachusetts. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MAR05C466.

Identity

Facility as filedNEWBURYPORT WASTEWATER TREATMENT PLANT
Permittee as filedNewburyport WWTP
NPDES IDMAR05C466
Permit statusPending
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
AddressNewburyport, MA 01950
Receiving water impaired303(D) Listed
SubwatershedEast Meadow River-Merrimack River (HUC 010700061404)
Other EPA IDs (FRS)RCRA handler MAD981892532; ICIS-AIR source MA0000002512100813

Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES MAR05C466.

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES MAR05C466.

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

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, MAR05C466.

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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 MAR05C466 there.

Nearby on the register

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

What this page shows

The NEWBURYPORT WASTEWATER TREATMENT PLANT, NPDES ID MAR05C466, is one of 72 general permit coverages on EPA's NPDES register in Essex County, this one included. Of those 72 Essex County general permit coverages, 9.7% have a violation on file. The permit sits among 42 NPDES permits in the East Meadow River-Merrimack River subwatershed, this one included, and it has no pollutants under a numeric limit and no pollutants with an effluent exceedance on record.