PCPWSD NO. 2 SUMMER FIELD SUBD WWTP
NPDES ID: MO0125482
E — SNC: Effluent violation (monthly average limit)
The facility discharged more of a pollutant than its permit allows, based on a monthly average.
Violations
March 31, 2026
Nitrogen, ammonia total [as N]
39% over limit
Discharged 16.6 mg/L against a permitted limit of 11.9 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
228% over limit
Discharged 8.53 mg/L against a permitted limit of 2.6 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
7% over limit
Discharged 84 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
December 31, 2025
Chlorine, total residual
900% over limit
Discharged 0.17000001 mg/L against a permitted limit of 0.017 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
90% over limit
Discharged 4.95 mg/L against a permitted limit of 2.6 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
135% over limit
Discharged 2419.6 MPN/100mL against a permitted limit of 1030 MPN/100mL (WKLY AVG)
DMR, Limited - Numeric Violation
September 30, 2025
Solids, suspended percent removal
22% over limit
Discharged 81.67 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
28% over limit
Discharged 7.29 mg/L against a permitted limit of 5.7 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
214% over limit
Discharged 4.085 mg/L against a permitted limit of 1.3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Oxygen, dissolved [DO]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MN)
DMR, Monitor Only - Overdue
Oxygen, dissolved [DO]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AV MN)
DMR, Monitor Only - Overdue
Nitrogen, ammonia total [as N]
14% over limit
Discharged 6.48 mg/L against a permitted limit of 5.7 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
258% over limit
Discharged 4.66 mg/L against a permitted limit of 1.3 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2025
Nitrogen, ammonia total [as N]
28% over limit
Discharged 3.32 mg/L against a permitted limit of 2.6 mg/L (MO AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 6.1 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Numeric Violation
December 31, 2024
Oxygen, dissolved [DO]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MN)
DMR, Monitor Only - Overdue
Oxygen, dissolved [DO]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AV MN)
DMR, Monitor Only - Overdue
September 30, 2024
Oxygen, dissolved [DO]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (DAILY MN)
DMR, Monitor Only - Overdue
Oxygen, dissolved [DO]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AV MN)
DMR, Monitor Only - Overdue
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)