Clean Water Act discharge permit · NPDES MAR1004RO

12, 14 & 24 SOUTH HUNT ROAD, Amesbury, MA: NPDES MAR1004RO discharge permit, effluent exceedances, inspections, penalties

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

12, 14 & 24 SOUTH HUNT ROAD, held by Onyx Corporation, holds NPDES permit MAR1004RO. EPA’s file records it issued August 22, 2023 and expiring February 16, 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 12, 14 & 24 SOUTH HUNT ROAD: its NPDES ID, its permit type and status, its dates, its address in Amesbury, Massachusetts. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MAR1004RO.

Identity

Facility as filed	12, 14 & 24 SOUTH HUNT ROAD
Permittee as filed	Onyx Corporation
NPDES ID	MAR1004RO
Permit status	Effective
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Program	Construction stormwater
Issued	August 22, 2023
Expiration date	February 16, 2027
Issuing agency	U.S. EPA
Address	Amesbury, MA 01913
Subwatershed	East Meadow River-Merrimack River (HUC 010700061404)

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 MAR1004RO.

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 MAR1004RO.

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 MAR1004RO there.

Nearby on the register

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

This EPA permit register page covers NPDES permit MAR1004RO, held by Onyx Corporation for 12, 14 & 24 SOUTH HUNT ROAD in Amesbury, MA, under the construction stormwater program, with an effective status and a Minor Discharger class. The page lists 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance, and it records no effluent or single-event violation for this permit. The permit is listed as issued August 22, 2023 and expiring February 16, 2027, in the East Meadow River-Merrimack River subwatershed (HUC 010700061404).