Velarion Records
Follow this permit Velarion Records emails you this permit’s record, cited to the public filing, and tells you when the register changes it. Free.
We’ll email you a link to confirm. The continuous daily watch on every change is the paid alert. Unsubscribe any time.
Also free: The Pay Desk, the weekly executive pay briefing.

Clean Water Act discharge permit · NPDES MAG360009

NORTHFIELD MOUNTAIN, LLC., Northfield, MA: NPDES MAG360009 discharge permit, effluent exceedances, inspections, penalties

NORTHFIELD MOUNTAIN, LLC. holds NPDES permit MAG360009, which discharges to Connecticut River. EPA’s file records it issued June 13, 2012 and expiring December 31, 2014. 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 NORTHFIELD MOUNTAIN, LLC.: its NPDES ID, its permit type and status, its dates, its address in Northfield, Massachusetts, its receiving water, and 4 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MAG360009.

Identity

Facility as filedNORTHFIELD MOUNTAIN, LLC.
Permittee as filedNORTHFIELD MOUNTAIN, LLC.
NPDES IDMAG360009
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedJune 13, 2012
Expiration dateDecember 31, 2014
AddressNorthfield, MA 01360
Receiving waterCONNECTICUT RIVER
SubwatershedDry Brook-Connecticut River (HUC 010802010503)
Other EPA IDs (FRS)RCRA handler MAD051572451; ICIS-AIR source MA0000002504200139

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

Effluent limits and exceedances

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 measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
pH400
Flow, in conduit or thru treatment plant200
Temperature, water deg. fahrenheit100
Oil & Grease100

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MAG360009.

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 MAG360009.

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, MAG360009.

Start the watch

How often?
  • One permit holder — $99/month
  • One watershed — $2,990/year
  • One state — $4,990/year
  • The whole register — $18,000/year

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 MAG360009 there.

Nearby on the register

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

What this page shows

This public-records page covers NPDES permit MAG360009, held by NORTHFIELD MOUNTAIN, LLC. in Northfield, Massachusetts, which discharges to the Connecticut River. The register lists a permit status of Administratively continued, a Minor Discharger class 4, 0 pollutants under a numeric limit, and 0 pollutants with an effluent exceedance.