Clean Water Act discharge permit · NPDES MAR05J04T
LAURENCE HANSCOM FIELD/SIGNATURE FLIGHT SUPPORT, Bedford, MA: NPDES MAR05J04T discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 17Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
LAURENCE HANSCOM FIELD/SIGNATURE FLIGHT SUPPORT, held by Signature Flight Support/Massport Airport Authority, holds NPDES permit MAR05J04T. EPA’s file records it issued June 29, 2021 and expiring February 28, 2026. 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.
Identity
| Facility as filed | LAURENCE HANSCOM FIELD/SIGNATURE FLIGHT SUPPORT |
|---|---|
| Permittee as filed | Signature Flight Support/Massport Airport Authority |
| NPDES ID | MAR05J04T |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Industrial stormwater |
| Issued | June 29, 2021 |
| Expiration date | February 28, 2026 |
| Issuing agency | U.S. EPA |
| Address | Bedford, MA 01730 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Upper Shawsheen River (HUC 010700061301) |
| SIC | 4522 – Air Transportation, Nonscheduled |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 17Pollutants on file
- 17Under a numeric limit
- 17With a violation of any kind
- 0With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Oxygen, dissolved [DO] | 1 | 2 | 0 | ||
| Acenaphthylene | 2 | 1 | 0 | ||
| Acenaphthene | 2 | 1 | 0 | ||
| Anthracene | 2 | 1 | 0 | ||
| Benzo[b]fluoranthene | 2 | 1 | 0 | ||
| Benzo[k]fluoranthene | 2 | 1 | 0 | ||
| Benzo[a]pyrene | 2 | 1 | 0 | ||
| Chrysene | 2 | 1 | 0 | ||
| Fluoranthene | 2 | 1 | 0 | ||
| Fluorene | 2 | 1 | 0 | ||
| Indeno[1,2,3-cd]pyrene | 2 | 1 | 0 | ||
| Phenanthrene | 2 | 1 | 0 | ||
| Pyrene | 2 | 1 | 0 | ||
| Benzo[ghi]perylene | 2 | 1 | 0 | ||
| Benzo[a]anthracene | 2 | 1 | 0 | ||
| Dibenz[a,h]anthracene | 2 | 1 | 0 | ||
| Naphthalene | 2 | 1 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MAR05J04T.
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 MAR05J04T.
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
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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 MAR05J04T 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 October 14, 2026.