Clean Water Act discharge permit · NPDES MAR1005K3
SUBSURFACE WORK FOR IMPROVEMENTS TO RYAN PLAYGROUND, CHARLESTOWN, Boston, MA: NPDES MAR1005K3 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
SUBSURFACE WORK FOR IMPROVEMENTS TO RYAN PLAYGROUND, CHARLESTOWN, held by Unified Contracting Inc., holds NPDES permit MAR1005K3. EPA’s file records it issued January 28, 2025 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 SUBSURFACE WORK FOR IMPROVEMENTS TO RYAN PLAYGROUND, CHARLESTOWN: its NPDES ID, its permit type and status, its dates, its address in Boston, Massachusetts. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MAR1005K3.
Identity
| Facility as filed | SUBSURFACE WORK FOR IMPROVEMENTS TO RYAN PLAYGROUND, CHARLESTOWN |
|---|---|
| Permittee as filed | Unified Contracting Inc. |
| NPDES ID | MAR1005K3 |
| 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 | January 28, 2025 |
| Expiration date | February 16, 2027 |
| Issuing agency | U.S. EPA |
| Address | Boston, MA 02129 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Mystic River-Frontal Boston Harbor (HUC 010900010502) |
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 MAR1005K3.
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 MAR1005K3.
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 MAR1005K3 there.
Nearby on the register
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- Every permit record in Massachusetts, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.