HARVARD BUSINESS SCHOOL RESIDENCE HALL RENOVATION
NPDES ID: MAG912236
E — SNC: Effluent violation (monthly average limit)
The facility discharged more of a pollutant than its permit allows, based on a monthly average.
Violations
February 28, 2026
Chrysene
2100% over limit
Discharged 0.00286 mg/L against a permitted limit of 0.00013 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Total Group I Polycyclic Aromatic Hydrocarbons
4985% over limit
Discharged 0.017796 mg/L against a permitted limit of 0.00035 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Lead, total recoverable
91743% over limit
Discharged 1.51700007 mg/L against a permitted limit of 0.00165174 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Zinc, total recoverable
732% over limit
Discharged 0.83510004 mg/L against a permitted limit of 0.10033141 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Indeno[1,2,3-cd]pyrene
189131% over limit
Discharged 0.00246 mg/L against a permitted limit of 0.0000013 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Chlordane
621% over limit
Discharged 0.00344 mg/L against a permitted limit of 0.000477 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
4033% over limit
Discharged 0.48270002 mg/L against a permitted limit of 0.01167811 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Arsenic, total recoverable
415% over limit
Discharged 0.02884 mg/L against a permitted limit of 0.0056 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Copper, total recoverable
5976% over limit
Discharged 0.48270002 mg/L against a permitted limit of 0.00794478 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Benzo[k]fluoranthene
10285% over limit
Discharged 0.00135 mg/L against a permitted limit of 0.000013 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Mercury, total recoverable
282% over limit
Discharged 0.00282 mg/L against a permitted limit of 0.000739 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Polychlorinated biphenyls [PCBs]
1764% over limit
Discharged 0.000261 mg/L against a permitted limit of 0.000014 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Benzo[a]pyrene
2584516% over limit
Discharged 0.00336 mg/L against a permitted limit of 1.3e-7 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
15567% over limit
Discharged 4700 mg/L against a permitted limit of 30 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
4,4'-DDT
39700% over limit
Discharged 0.000398 mg/L against a permitted limit of 0.000001 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Benzo[a]anthracene
250669% over limit
Discharged 0.00326 mg/L against a permitted limit of 0.0000013 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, total [as N]
30% over limit
Discharged 13 mg/L against a permitted limit of 10 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Dibenz[a,h]anthracene
435285% over limit
Discharged 0.000566 mg/L against a permitted limit of 1.3e-7 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Lead, total recoverable
3479% over limit
Discharged 1.51700007 mg/L against a permitted limit of 0.04238659 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Iron, total recoverable
1968% over limit
Discharged 103.40000491 mg/L against a permitted limit of 5.00000024 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Turbidity
0% over limit
Discharged 3900 NTU against a permitted limit of 50 NTU (DAILY MX)
DMR, Limited - Numeric Violation
Zinc, total recoverable
739% over limit
Discharged 0.83510004 mg/L against a permitted limit of 0.09951736 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nickel, total recoverable
199% over limit
Discharged 0.12810001 mg/L against a permitted limit of 0.04286079 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
7500% over limit
Discharged 7.6 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
4,4'-DDE
15250% over limit
Discharged 0.000307 mg/L against a permitted limit of 0.000002 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2025
Phosphorus, total [as P]
8% over limit
Discharged 0.108 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
November 30, 2025
Benzo[a]anthracene
3900% over limit
Discharged 0.000052 mg/L against a permitted limit of 0.0000013 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
122% over limit
Discharged 0.222 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
October 31, 2025
Phosphorus, total [as P]
110% over limit
Discharged 0.21 mg/L against a permitted limit of 0.1 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (24 days ago)