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Clean Water Act discharge permit · NPDES MAR1004ZN

SOUTH SHORE NATURAL SCIENCE CENTER, Norwell, MA: NPDES MAR1004ZN discharge permit, effluent exceedances, inspections, penalties

SOUTH SHORE NATURAL SCIENCE CENTER, held by Jay McGilvray, holds NPDES permit MAR1004ZN. EPA’s file records it issued January 17, 2024 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 SOUTH SHORE NATURAL SCIENCE CENTER: its NPDES ID, its permit type and status, its dates, its address in Norwell, Massachusetts. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MAR1004ZN.

Identity

Facility as filedSOUTH SHORE NATURAL SCIENCE CENTER
Permittee as filedJay McGilvray
NPDES IDMAR1004ZN
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedJanuary 17, 2024
Expiration dateFebruary 16, 2027
Issuing agencyU.S. EPA
AddressNorwell, MA 02061
SubwatershedBound Brook-Frontal The Gulf (HUC 010900020103)

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

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES MAR1004ZN.

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 MAR1004ZN.

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, MAR1004ZN.

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 MAR1004ZN there.

Nearby on the register

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