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Clean Water Act discharge permit · NPDES MAC020412

HOPKINTON SEWER COLLECTION SYSTEM, Hopkinton, MA: NPDES MAC020412 discharge permit, effluent exceedances, inspections, penalties

HOPKINTON SEWER COLLECTION SYSTEM, held by Hopkinton Sewer Collection System, holds NPDES permit MAC020412. EPA’s file records it issued February 28, 2022 and expiring April 30, 2027. 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 HOPKINTON SEWER COLLECTION SYSTEM: its NPDES ID, its permit type and status, its dates, its address in Hopkinton, Massachusetts. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MAC020412.

Identity

Facility as filedHOPKINTON SEWER COLLECTION SYSTEM
Permittee as filedHopkinton Sewer Collection System
NPDES IDMAC020412
Permit statusEffective
Permit typeAssociated permit record
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedFebruary 28, 2022
Expiration dateApril 30, 2027
AddressHopkinton, MA 01748
SubwatershedHeadwaters Sudbury River (HUC 010700050101)
Other EPA IDs (FRS)RCRA handler MAR000650846

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 MAC020412.

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 MAC020412.

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, MAC020412.

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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 MAC020412 there.

Nearby on the register

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

What this page shows

The HOPKINTON SEWER COLLECTION SYSTEM permit is one of 3 associated permit records on EPA's NPDES register in Middlesex County, including this one. It also sits among 51 NPDES permits in the Headwaters Sudbury River subwatershed, this one included, and it lists 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance.