W BRANCH SEW AUTH STP
NPDES ID: PA0205869
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: 4 effluent violations.
Violations
May 31, 2026
Nitrogen, ammonia total [as N]
15% over limit
Discharged 14.97 mg/L against a permitted limit of 13.02 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2026
Nitrogen, ammonia total [as N]
222% over limit
Discharged 13.99 mg/L against a permitted limit of 4.34 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
54% over limit
Discharged 22.82711981 kg/d against a permitted limit of 14.79131988 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
119% over limit
Discharged 19.02 mg/L against a permitted limit of 8.68 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
March 31, 2026
Nitrogen, ammonia total [as N]
94% over limit
Discharged 28.63377976 kg/d against a permitted limit of 14.79131988 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
120% over limit
Discharged 19.08 mg/L against a permitted limit of 8.68 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
226% over limit
Discharged 14.17 mg/L against a permitted limit of 4.34 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2026
Nitrogen, ammonia total [as N]
14% over limit
Discharged 16.86609986 kg/d against a permitted limit of 14.79131988 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
39% over limit
Discharged 12.07 mg/L against a permitted limit of 8.68 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
152% over limit
Discharged 10.94 mg/L against a permitted limit of 4.34 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2026
Nitrogen, ammonia total [as N]
38% over limit
Discharged 12.01 mg/L against a permitted limit of 8.68 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
44% over limit
Discharged 6.24 mg/L against a permitted limit of 4.34 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2025
Nitrogen, ammonia total [as N]
4% over limit
Discharged 27.04 mg/L against a permitted limit of 26.04 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2420 MPN/100mL against a permitted limit of 1000 MPN/100mL (INST MAX)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 9 MPN/100mL against a permitted limit of 200 MPN/100mL (GEO MEAN)
DMR, Limited - Numeric Violation
May 31, 2025
Coliform, fecal general
200% over limit
Discharged 3000 MPN/100mL against a permitted limit of 1000 MPN/100mL (INST MAX)
DMR, Limited - Numeric Violation
April 30, 2025
Nitrogen, ammonia total [as N]
15% over limit
Discharged 10.01 mg/L against a permitted limit of 8.68 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
March 31, 2025
Nitrogen, ammonia total [as N]
51% over limit
Discharged 6.55 mg/L against a permitted limit of 4.34 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
49% over limit
Discharged 12.9 mg/L against a permitted limit of 8.68 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
August 31, 2024
Coliform, fecal general
41% over limit
Discharged 1414 MPN/100mL against a permitted limit of 1000 MPN/100mL (INST MAX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
August 1, 2026 (5 days ago)