Clean Water Act discharge permit · NPDES MAL100668

CONCORD WWTP, Concord, MA: NPDES MAL100668 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
0Pollutants under a numeric limit
0Pollutants with an effluent exceedance

CONCORD WWTP holds NPDES permit MAL100668. EPA’s file records it issued January 1, 2021 and expiring December 31, 2025. 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 CONCORD WWTP: its NPDES ID, its permit type and status, its dates, its address in Concord, Massachusetts. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MAL100668.

Identity

Facility as filed	CONCORD WWTP
Permittee as filed	CONCORD WWTP
NPDES ID	MAL100668
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Associated permit record
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Program	Biosolids
Issued	January 1, 2021
Expiration date	December 31, 2025
Address	Concord, MA 01742
Receiving water impaired	303(D) Listed
Subwatershed	Hop Brook-Sudbury River (HUC 010700050104)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

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 MAL100668.

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 MAL100668.

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.

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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 MAL100668 there.

Nearby on the register

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

This public-records page covers NPDES permit MAL100668 for CONCORD WWTP in Concord, Massachusetts, which EPA's file records as issued January 1, 2021 and expiring December 31, 2025, with a status of administratively continued. The page lists a minor discharger class, 0 pollutants under a numeric limit, and 0 pollutants with an effluent exceedance, and it reports no violation in EPA's effluent violation or single-event violation files for this permit.