Clean Water Act discharge permit · NPDES MAG910699
KENDALL SQUARE SOUTH OF MAIN, Cambridge, MA: NPDES MAG910699 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 31Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
KENDALL SQUARE SOUTH OF MAIN, held by TURNER CONSTRUCTION COMPANY, holds NPDES permit MAG910699, which discharges to Charles River. EPA’s file records it issued April 17, 2017 and expiring April 8, 2022. 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 | KENDALL SQUARE SOUTH OF MAIN |
|---|---|
| Permittee as filed | TURNER CONSTRUCTION COMPANY |
| NPDES ID | MAG910699 |
| 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 |
| Issued | April 17, 2017 |
| Expiration date | April 8, 2022 |
| Address | Cambridge, MA 02142 |
| Receiving water | CHARLES RIVER |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 31Pollutants on file
- 31Under a numeric limit
- 11With a violation of any kind
- 4With 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 |
|---|---|---|---|---|---|
| pH | 20 | 10 | 10 | December 31, 2019 | |
| Solids, total suspended | 10 | 6 | 6 | February 28, 2021 | 333% over the limit |
| Iron, total recoverable | 10 | 2 | 2 | January 31, 2020 | 71% over the limit |
| Zinc, total recoverable | 10 | 1 | 1 | July 31, 2021 | 83% over the limit |
| Cadmium, total recoverable | 10 | 7 | 0 | ||
| Lead, total recoverable | 10 | 7 | 0 | ||
| Copper, total recoverable | 10 | 7 | 0 | ||
| Antimony, total recoverable | 10 | 7 | 0 | ||
| Chromium, trivalent total recoverable | 10 | 7 | 0 | ||
| Mercury, total recoverable | 10 | 7 | 0 | ||
| Chromium, hexavalent tot recoverable | 10 | 7 | 0 | ||
| Chloride, total recoverable | 13 | 0 | 0 | ||
| Nitrogen, ammonia total [as N] | 10 | 0 | 0 | ||
| Cyanide, total [as CN] | 10 | 0 | 0 | ||
| Arsenic, total recoverable | 10 | 0 | 0 | ||
| Selenium, total recoverable | 10 | 0 | 0 | ||
| Nickel, total recoverable | 10 | 0 | 0 | ||
| Silver total recoverable | 10 | 0 | 0 | ||
| Benzo[b]fluoranthene | 10 | 0 | 0 | ||
| Benzo[k]fluoranthene | 10 | 0 | 0 | ||
| Benzo[a]pyrene | 10 | 0 | 0 | ||
| Chrysene | 10 | 0 | 0 | ||
| Indeno[1,2,3-cd]pyrene | 10 | 0 | 0 | ||
| Benzo[a]anthracene | 10 | 0 | 0 | ||
| Dibenz[a,h]anthracene | 10 | 0 | 0 | ||
| BTEX | 10 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 10 | 0 | 0 | ||
| Total Group I Polycyclic Aromatic Hydrocarbons | 10 | 0 | 0 | ||
| Total Group II Polycyclic Aromatic Hydrocarbons | 10 | 0 | 0 | ||
| cis-1,2-Dichloroethylene | 10 | 0 | 0 | ||
| Cyanide, total recoverable | 6 | 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 MAG910699.
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, MAG910699.
Start the watch
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- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
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 MAG910699 there.
Nearby on the register
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- Every permit record in Cambridge, A to Z
- Discharge permits in Massachusetts
- Every permit record in Massachusetts, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.