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Clean Water Act discharge permit · NPDES MAR1005N2

INTERMEDIATE HIGH PIPELINE IMPROVEMENTS CP1 SECTION 75A & 47, Watertown, MA: NPDES MAR1005N2 discharge permit, effluent exceedances, inspections, penalties

INTERMEDIATE HIGH PIPELINE IMPROVEMENTS CP1 SECTION 75A & 47, held by P. Gioioso & Sons, Inc., holds NPDES permit MAR1005N2. EPA’s file records it issued March 26, 2025 and expiring February 16, 2027. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

What the register holds for INTERMEDIATE HIGH PIPELINE IMPROVEMENTS CP1 SECTION 75A & 47: its NPDES ID, its permit type and status, its dates, its address in Watertown, Massachusetts. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MAR1005N2.

Identity

Facility as filedINTERMEDIATE HIGH PIPELINE IMPROVEMENTS CP1 SECTION 75A & 47
Permittee as filedP. Gioioso & Sons, Inc.
NPDES IDMAR1005N2
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedMarch 26, 2025
Expiration dateFebruary 16, 2027
Issuing agencyU.S. EPA
AddressWatertown, MA 02135
Receiving water impaired303(D) Listed
SubwatershedCharles River-Frontal Boston Harbor (HUC 010900010704)

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 MAR1005N2.

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 MAR1005N2.

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, MAR1005N2.

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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 MAR1005N2 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

What this page shows

Watertown has 20 storm water construction permits under EPA's NPDES program, and 0.0% of them have a violation on file. INTERMEDIATE HIGH PIPELINE IMPROVEMENTS CP1 SECTION 75A & 47 lies in the Charles River-Frontal Boston Harbor subwatershed (HUC 010900010704), which lists 384 NPDES permits including this permit. Of the 20 Watertown storm water construction permits, 80.0% were issued before this permit.