Clean Water Act discharge permit · NPDES MAG912019
585 THIRD STREET PROJECT, Cambridge, MA: NPDES MAG912019 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 21Pollutants under a numeric limit
- 10Pollutants with an effluent exceedance
585 THIRD STREET PROJECT, held by Suffolk Construction Company, holds NPDES permit MAG912019. EPA’s file records it issued August 2, 2022 and expiring August 1, 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.
Identity
| Facility as filed | 585 THIRD STREET PROJECT |
|---|---|
| Permittee as filed | Suffolk Construction Company |
| NPDES ID | MAG912019 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | August 2, 2022 |
| Expiration date | August 1, 2027 |
| Issuing agency | EPA Region 1 |
| Address | Cambridge, MA 02142 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Charles River-Frontal Boston Harbor (HUC 010900010704) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 21Pollutants on file
- 21Under a numeric limit
- 17With a violation of any kind
- 10With 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 |
|---|---|---|---|---|---|
| Cyanide, total [as CN] | 2 | 14 | 11 | August 31, 2024 | 15,945% over the limit |
| Chloride, total recoverable | 2 | 11 | 8 | August 31, 2024 | 204% over the limit |
| Nitrogen, total [as N] | 2 | 6 | 3 | March 31, 2024 | 230% over the limit |
| Copper, total recoverable | 2 | 6 | 3 | February 29, 2024 | 493% over the limit |
| Lead, total recoverable | 2 | 5 | 2 | September 30, 2023 | 47% over the limit |
| Benzene | 1 | 5 | 2 | November 30, 2023 | 240% over the limit |
| pH | 2 | 2 | 2 | September 30, 2023 | |
| Chrysene | 1 | 4 | 1 | April 30, 2024 | 92% over the limit |
| Turbidity | 1 | 2 | 1 | February 29, 2024 | |
| Solids, total suspended | 1 | 1 | 1 | February 29, 2024 | 300% over the limit |
| Iron, total recoverable | 2 | 3 | 0 | ||
| Chromium, trivalent total recoverable | 1 | 3 | 0 | ||
| Phenol | 1 | 3 | 0 | ||
| Naphthalene | 1 | 3 | 0 | ||
| BTEX | 1 | 3 | 0 | ||
| Total Group I Polycyclic Aromatic Hydrocarbons | 1 | 3 | 0 | ||
| Total Group II Polycyclic Aromatic Hydrocarbons | 1 | 3 | 0 | ||
| Arsenic, total recoverable | 1 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 1 | 0 | 0 | ||
| Solids, total dissolved [TDS] | 1 | 0 | 0 | ||
| Hydrocarbons, total petroleum | 1 | 0 | 0 |
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 MAG912019.
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 MAG912019 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.