350 E. KENDALL F LLC (KENDALL SQUARE GARAGE), CAMBRIDGE
NPDES ID: MAG912031
E — SNC: Effluent violation (monthly average limit)
The facility discharged more of a pollutant than its permit allows, based on a monthly average.
This quarter: 3 effluent violations.
Violations
May 31, 2026
Cyanide, total [as CN]
92% over limit
Discharged 0.01 mg/L against a permitted limit of 0.0052 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Chloride, total recoverable
226% over limit
Discharged 750 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2026
Chloride, total recoverable
140% over limit
Discharged 551 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2026
Chloride, total recoverable
234% over limit
Discharged 769 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 8.4 SU against a permitted limit of 8.3 SU (MAXIMUM)
DMR, Limited - Numeric Violation
February 28, 2026
Chloride, total recoverable
234% over limit
Discharged 769 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, total [as N]
20% over limit
Discharged 12 mg/L against a permitted limit of 10 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
January 31, 2026
Nitrogen, total [as N]
50% over limit
Discharged 15 mg/L against a permitted limit of 10 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Chloride, total recoverable
233% over limit
Discharged 767 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2025
Chloride, total recoverable
153% over limit
Discharged 582 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2025
Chloride, total recoverable
140% over limit
Discharged 553 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2025
Chloride, total recoverable
211% over limit
Discharged 716 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2025
Chloride, total recoverable
210% over limit
Discharged 713 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2025
Chloride, total recoverable
102% over limit
Discharged 464 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
July 31, 2025
Chloride, total recoverable
45% over limit
Discharged 334 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, total [as N]
60% over limit
Discharged 16 mg/L against a permitted limit of 10 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Flow, in conduit or thru treatment plant
38% over limit
Discharged 0.623 MGD against a permitted limit of 0.451 MGD (DAILY MX)
DMR, Limited - Numeric Violation
June 30, 2025
Chloride, total recoverable
80% over limit
Discharged 415 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2025
Chloride, total recoverable
117% over limit
Discharged 498 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2025
Chloride, total recoverable
108% over limit
Discharged 478 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2025
Chloride, total recoverable
263% over limit
Discharged 835 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, total [as N]
10% over limit
Discharged 11 mg/L against a permitted limit of 10 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2025
Cyanide, total [as CN]
967% over limit
Discharged 0.0555 mg/L against a permitted limit of 0.0052 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Cyanide, total [as CN]
382% over limit
Discharged 0.10600001 mg/L against a permitted limit of 0.022 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, total [as N]
250% over limit
Discharged 35 mg/L against a permitted limit of 10 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Chloride, total recoverable
273% over limit
Discharged 858 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2025
Nitrogen, total [as N]
59% over limit
Discharged 15.9 mg/L against a permitted limit of 10 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Chloride, total recoverable
4% over limit
Discharged 893 mg/L against a permitted limit of 860 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Cyanide, total [as CN]
280% over limit
Discharged 0.0836 mg/L against a permitted limit of 0.022 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Chloride, total recoverable
288% over limit
Discharged 893 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Cyanide, total [as CN]
1508% over limit
Discharged 0.0836 mg/L against a permitted limit of 0.0052 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2024
Chloride, total recoverable
182% over limit
Discharged 648 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2024
Chloride, total recoverable
257% over limit
Discharged 820 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2024
Chloride, total recoverable
200% over limit
Discharged 690 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2024
Chloride, total recoverable
163% over limit
Discharged 604 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2024
Chloride, total recoverable
69% over limit
Discharged 388 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
July 31, 2024
Chloride, total recoverable
61% over limit
Discharged 370 mg/L against a permitted limit of 230 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Flow, in conduit or thru treatment plant
7% over limit
Discharged 0.481 MGD against a permitted limit of 0.451 MGD (DAILY MX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)