Clean Water Act discharge permit · NPDES MAR1004KT

LINDEN PONDS - PHASE 2A, Hingham, MA: NPDES MAR1004KT discharge permit, effluent exceedances, inspections, penalties

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

LINDEN PONDS - PHASE 2A, held by Callahan, Inc., holds NPDES permit MAR1004KT. EPA’s file records it issued April 12, 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 LINDEN PONDS - PHASE 2A: its NPDES ID, its permit type and status, its dates, its address in Hingham, Massachusetts. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MAR1004KT.

Identity

Facility as filed	LINDEN PONDS - PHASE 2A
Permittee as filed	Callahan, Inc.
NPDES ID	MAR1004KT
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	April 12, 2023
Expiration date	February 16, 2027
Issuing agency	U.S. EPA
Address	Hingham, MA 02043
Receiving water impaired	303(D) Listed
Subwatershed	Weir River-Frontal Hingham Bay (HUC 010900010902)
Other EPA IDs (FRS)	RCRA handler MAR000595520

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

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 MAR1004KT.

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 MAR1004KT.

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, MAR1004KT.

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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 MAR1004KT there.

Nearby on the register

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

The LINDEN PONDS - PHASE 2A storm water construction permit, held by Callahan, Inc. in Hingham, Massachusetts, is one of 11 such permits in Plymouth County on EPA's NPDES register, and 0.0% of those 11 permits carry a violation on file. It also sits among 45 NPDES permits in the Weir River-Frontal Hingham Bay subwatershed, and 40.0% of the 10 storm water construction permits in Plymouth County were issued earlier than this one.