PLUMMER, CITY OF - PLUMMER WWTP
NPDES ID: ID0022781
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: 10 effluent violations.
Violations
May 31, 2026
Phosphorus, total [as P]
166% over limit
Discharged 0.34800002 mg/L against a permitted limit of 0.13100001 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
56% over limit
Discharged 0.093978 kg/d against a permitted limit of 0.060382 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
472% over limit
Discharged 0.28600001 mg/L against a permitted limit of 0.05 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2026
Phosphorus, total [as P]
660% over limit
Discharged 0.38000002 mg/L against a permitted limit of 0.05 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
402% over limit
Discharged 0.65700003 mg/L against a permitted limit of 0.13100001 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
80% over limit
Discharged 0.28602 kg/d against a permitted limit of 0.1589 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
162% over limit
Discharged 0.158446 kg/d against a permitted limit of 0.060382 kg/d (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2026
Phosphorus, total [as P]
98% over limit
Discharged 0.240166 kg/d against a permitted limit of 0.121218 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
141% over limit
Discharged 0.24100001 mg/L against a permitted limit of 0.1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
90% over limit
Discharged 0.57200003 mg/L against a permitted limit of 0.30100001 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
67% over limit
Discharged 0.60835999 kg/d against a permitted limit of 0.364562 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
February 28, 2026
Phosphorus, total [as P]
39% over limit
Discharged 0.13900001 mg/L against a permitted limit of 0.1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2026
Phosphorus, total [as P]
145% over limit
Discharged 0.89437999 kg/d against a permitted limit of 0.364562 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
47091% over limit
Discharged 57.20399952 kg/d against a permitted limit of 0.121218 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
285% over limit
Discharged 1.16000006 mg/L against a permitted limit of 0.30100001 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
December 31, 2025
Phosphorus, total [as P]
644% over limit
Discharged 0.44946 kg/d against a permitted limit of 0.060382 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
48% over limit
Discharged 0.074 mg/L against a permitted limit of 0.05 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
1160% over limit
Discharged 2.00213998 kg/d against a permitted limit of 0.1589 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
816% over limit
Discharged 1.20000006 mg/L against a permitted limit of 0.13100001 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
September 30, 2025
Phosphorus, total [as P]
227% over limit
Discharged 0.42800002 mg/L against a permitted limit of 0.13100001 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
44% over limit
Discharged 0.086714 kg/d against a permitted limit of 0.060382 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
522% over limit
Discharged 0.31100001 mg/L against a permitted limit of 0.05 mg/L (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2025
Phosphorus, total [as P]
10% over limit
Discharged 0.11000001 mg/L against a permitted limit of 0.1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
July 31, 2025
Phosphorus, total [as P]
1222% over limit
Discharged 0.66100003 mg/L against a permitted limit of 0.05 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
411% over limit
Discharged 0.81265999 kg/d against a permitted limit of 0.1589 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
372% over limit
Discharged 0.285112 kg/d against a permitted limit of 0.060382 kg/d (MO AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Phosphorus, total [as P]
372% over limit
Discharged 0.285112 kg/d against a permitted limit of 0.060382 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
411% over limit
Discharged 0.81265999 kg/d against a permitted limit of 0.1589 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
1222% over limit
Discharged 0.66100003 mg/L against a permitted limit of 0.05 mg/L (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2025
Phosphorus, total [as P]
1370% over limit
Discharged 0.73500003 mg/L against a permitted limit of 0.05 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
417% over limit
Discharged 0.311898 kg/d against a permitted limit of 0.060382 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
176% over limit
Discharged 0.43811 kg/d against a permitted limit of 0.1589 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
54289% over limit
Discharged 71.25000338 mg/L against a permitted limit of 0.13100001 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
April 30, 2025
Phosphorus, total [as P]
953% over limit
Discharged 0.63559999 kg/d against a permitted limit of 0.060382 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
1548% over limit
Discharged 0.82400004 mg/L against a permitted limit of 0.05 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
220% over limit
Discharged 0.50848 kg/d against a permitted limit of 0.1589 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
1030% over limit
Discharged 1.48000007 mg/L against a permitted limit of 0.13100001 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
March 31, 2025
Phosphorus, total [as P]
18% over limit
Discharged 0.142556 kg/d against a permitted limit of 0.121218 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
43% over limit
Discharged 0.14300001 mg/L against a permitted limit of 0.1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
18% over limit
Discharged 2.95 mg/L against a permitted limit of 2.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2025
Nitrogen, ammonia total [as N]
11% over limit
Discharged 8.62 mg/L against a permitted limit of 7.8 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
58% over limit
Discharged 0.191134 kg/d against a permitted limit of 0.121218 kg/d (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2025
Phosphorus, total [as P]
6% over limit
Discharged 0.31900002 mg/L against a permitted limit of 0.30100001 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
28% over limit
Discharged 0.155722 kg/d against a permitted limit of 0.121218 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
5% over limit
Discharged 0.381814 kg/d against a permitted limit of 0.364562 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
114% over limit
Discharged 0.21400001 mg/L against a permitted limit of 0.1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2024
Phosphorus, total [as P]
21% over limit
Discharged 0.44038 kg/d against a permitted limit of 0.364562 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
November 30, 2024
Phosphorus, total [as P]
194% over limit
Discharged 0.14700001 mg/L against a permitted limit of 0.05 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
92% over limit
Discharged 4.8 mg/L against a permitted limit of 2.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
21% over limit
Discharged 0.19295 kg/d against a permitted limit of 0.1589 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
36% over limit
Discharged 0.082174 kg/d against a permitted limit of 0.060382 kg/d (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2024
E. coli, MTEC-MF
65% over limit
Discharged 387 MPN/100mL against a permitted limit of 235 MPN/100mL (INST MAX)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
671% over limit
Discharged 1.01000005 mg/L against a permitted limit of 0.13100001 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
74% over limit
Discharged 0.104874 kg/d against a permitted limit of 0.060382 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
34% over limit
Discharged 3.34 mg/L against a permitted limit of 2.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
26% over limit
Discharged 9.8 mg/L against a permitted limit of 7.8 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
89% over limit
Discharged 0.300548 kg/d against a permitted limit of 0.1589 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
August 31, 2024
Phosphorus, total [as P]
31% over limit
Discharged 0.20884 kg/d against a permitted limit of 0.1589 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
276% over limit
Discharged 9.4 mg/L against a permitted limit of 2.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
36% over limit
Discharged 0.082174 kg/d against a permitted limit of 0.060382 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
517% over limit
Discharged 0.80800004 mg/L against a permitted limit of 0.13100001 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
528% over limit
Discharged 0.31400001 mg/L against a permitted limit of 0.05 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli, MTEC-MF
21% over limit
Discharged 285 MPN/100mL against a permitted limit of 235 MPN/100mL (INST MAX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
173% over limit
Discharged 21.3 mg/L against a permitted limit of 7.8 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
August 1, 2026 (5 days ago)