FAIRHAVEN W P C F
NPDES ID: MAG590006
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: 6 effluent violations.
Violations
June 30, 2026
Nitrogen, total [as N]
261% over limit
Discharged 204.75399828 kg/d against a permitted limit of 56.74999952 kg/d (ROLL AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
100% over limit
Discharged 22 mg/L against a permitted limit of 11 mg/L (MO AVG)
DMR, Limited - Numeric Violation
LC50 Static Renewal 48Hr Acute Menidia
50% over limit
Discharged 50 % against a permitted limit of 100 % (MO AV MN)
DMR, Limited - Numeric Violation
May 31, 2026
Nitrogen, total [as N]
240% over limit
Discharged 192.94999838 kg/d against a permitted limit of 56.74999952 kg/d (ROLL AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
73% over limit
Discharged 19 mg/L against a permitted limit of 11 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Enterococci
120% over limit
Discharged 77 MPN/100mL against a permitted limit of 35 MPN/100mL (MO GEO)
DMR, Limited - Numeric Violation
March 31, 2026
BOD, 5-day, percent removal
40% over limit
Discharged 79 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
40% over limit
Discharged 79 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
January 31, 2026
Coliform, fecal general
153% over limit
Discharged 658 MPN/100mL against a permitted limit of 260 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2025
Coliform, fecal general
45% over limit
Discharged 378 MPN/100mL against a permitted limit of 260 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Enterococci
47% over limit
Discharged 191 MPN/100mL against a permitted limit of 130 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
November 30, 2025
Coliform, fecal general
38% over limit
Discharged 360 MPN/100mL against a permitted limit of 260 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
27% over limit
Discharged 81 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
October 31, 2025
Nitrogen, total [as N]
219% over limit
Discharged 181.14599848 kg/d against a permitted limit of 56.74999952 kg/d (ROLL AVG)
DMR, Limited - Numeric Violation
September 30, 2025
Nitrogen, ammonia total [as N]
145% over limit
Discharged 27 mg/L against a permitted limit of 11 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, total [as N]
242% over limit
Discharged 193.85799837 kg/d against a permitted limit of 56.74999952 kg/d (ROLL AVG)
DMR, Limited - Numeric Violation
August 31, 2025
Nitrogen, ammonia total [as N]
118% over limit
Discharged 24 mg/L against a permitted limit of 11 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
164% over limit
Discharged 686 MPN/100mL against a permitted limit of 260 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Coliform, fecal general
76% over limit
Discharged 155 MPN/100mL against a permitted limit of 88 MPN/100mL (MO GEO)
DMR, Limited - Numeric Violation
Nitrogen, total [as N]
255% over limit
Discharged 201.57599831 kg/d against a permitted limit of 56.74999952 kg/d (ROLL AVG)
DMR, Limited - Numeric Violation
Enterococci
298% over limit
Discharged 517 MPN/100mL against a permitted limit of 130 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Enterococci
357% over limit
Discharged 160 MPN/100mL against a permitted limit of 35 MPN/100mL (MO GEO)
DMR, Limited - Numeric Violation
July 31, 2025
Nitrogen, ammonia total [as N]
106% over limit
Discharged 22.7 mg/L against a permitted limit of 11 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
41% over limit
Discharged 367 MPN/100mL against a permitted limit of 260 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Enterococci
114% over limit
Discharged 278 MPN/100mL against a permitted limit of 130 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, total [as N]
258% over limit
Discharged 202.93799829 kg/d against a permitted limit of 56.74999952 kg/d (ROLL AVG)
DMR, Limited - Numeric Violation
Enterococci
91% over limit
Discharged 67 MPN/100mL against a permitted limit of 35 MPN/100mL (MO GEO)
DMR, Limited - Numeric Violation
June 30, 2025
Nitrogen, ammonia total [as N]
24% over limit
Discharged 13.6 mg/L against a permitted limit of 11 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, total [as N]
242% over limit
Discharged 194.31199837 kg/d against a permitted limit of 56.74999952 kg/d (ROLL AVG)
DMR, Limited - Numeric Violation
May 31, 2025
Nitrogen, total [as N]
243% over limit
Discharged 194.76599836 kg/d against a permitted limit of 56.74999952 kg/d (ROLL AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
52% over limit
Discharged 16.7 mg/L against a permitted limit of 11 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2025
Solids, suspended percent removal
33% over limit
Discharged 80 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Enterococci
6% over limit
Discharged 37 MPN/100mL against a permitted limit of 35 MPN/100mL (MO GEO)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
20% over limit
Discharged 82 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Enterococci
44% over limit
Discharged 187 MPN/100mL against a permitted limit of 130 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
February 28, 2025
Solids, suspended percent removal
6% over limit
Discharged 84.1 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Enterococci
69% over limit
Discharged 59 MPN/100mL against a permitted limit of 35 MPN/100mL (MO GEO)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
19% over limit
Discharged 82.1 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Enterococci
322% over limit
Discharged 549 MPN/100mL against a permitted limit of 130 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Coliform, fecal general
5% over limit
Discharged 272 MPN/100mL against a permitted limit of 260 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
October 31, 2024
Nitrogen, total [as N]
161% over limit
Discharged 148.00399876 kg/d against a permitted limit of 56.74999952 kg/d (ROLL AVG)
DMR, Limited - Numeric Violation
September 30, 2024
Nitrogen, total [as N]
165% over limit
Discharged 150.36479874 kg/d against a permitted limit of 56.74999952 kg/d (ROLL AVG)
DMR, Limited - Numeric Violation
August 31, 2024
Nitrogen, total [as N]
192% over limit
Discharged 165.70999861 kg/d against a permitted limit of 56.74999952 kg/d (ROLL AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 16, 2026 (3 hours ago)