Clean Water Act discharge permit · NPDES MA0004898
KENDALL GREEN ENERGY LLC, Cambridge, MA: NPDES MA0004898 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MajorDischarger class
- 17Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
KENDALL GREEN ENERGY LLC, held by MIRANT KENDALL LLC, holds NPDES permit MA0004898, which discharges to Charles Riv ( & Via Broad Canal ). EPA’s file records it issued September 26, 2006 and expiring November 30, 2011. 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 | KENDALL GREEN ENERGY LLC |
|---|---|
| Permittee as filed | MIRANT KENDALL LLC |
| NPDES ID | MA0004898 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | September 26, 2006 |
| Expiration date | November 30, 2011 |
| Address | Cambridge, MA 02142 |
| Receiving water | CHARLES RIV ( & VIA BROAD CANAL ) |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Charles River-Frontal Boston Harbor (HUC 010900010704) |
| Other EPA IDs (FRS) | RCRA handler MAD000846238; ICIS-AIR source MA0000002511900093 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 18Pollutants on file
- 17Under a numeric limit
- 13With a violation of any kind
- 8With 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 | 18 | 70 | 54 | January 31, 2011 | |
| Chlorine, total residual | 14 | 26 | 15 | June 30, 2016 | 64,900% over the limit |
| Temperature, water deg. fahrenheit | 30 | 30 | 10 | June 30, 2024 | 9% over the limit |
| Temp. diff. between samp. & upstrm deg. F | 2 | 7 | 7 | March 31, 2010 | 255% over the limit |
| Heat [winter] [per hour] | 8 | 7 | 4 | April 30, 2012 | 1,459% over the limit |
| Heat [summer] [per hour] | 8 | 10 | 3 | July 31, 2012 | 1,437% over the limit |
| Oil & Grease | 2 | 3 | 1 | January 31, 2020 | 62% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 1 | 1 | July 31, 2003 | 5% over the limit |
| Flow rate | 21 | 13 | 0 | ||
| Production, total, megawatts | 0 | 6 | 0 | ||
| Conductivity | 8 | 4 | 0 | ||
| Oxygen, dissolved [DO] | 8 | 4 | 0 | ||
| Solids, total suspended | 2 | 2 | 0 | ||
| LC50 Static 48Hr Acute Ceriodaphnia dubia | 8 | 0 | 0 | ||
| LC50 Static 48Hr Acute Pimephales promelas | 8 | 0 | 0 | ||
| Noael Statre 7Day Chronic Arbacia | 8 | 0 | 0 | ||
| Noael Statre 7Day Chronic Menidia | 8 | 0 | 0 | ||
| Priority Pollutants | 2 | 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 MA0004898.
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 MA0004898 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.