LOCUST GROVE PUBLIC WORKS AUTH
NPDES ID: OK0022772
X — SNC: Effluent violation (non-monthly average limit)
The facility discharged more of a pollutant than its permit allows, measured over a period other than a monthly average.
This quarter: 8 effluent violations.
Violations
May 31, 2026
E. coli
4826% over limit
Discharged 20000 MPN/100mL against a permitted limit of 406 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
34% over limit
Discharged 3.98 mg/L against a permitted limit of 6 mg/L (MINIMUM)
DMR, Limited - Numeric Violation
E. coli
2004% over limit
Discharged 2651 MPN/100mL against a permitted limit of 126 MPN/100mL (GEO MEAN)
DMR, Limited - Numeric Violation
April 30, 2026
BOD, carbonaceous [5 day, 20 C]
17% over limit
Discharged 11.65 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
38% over limit
Discharged 2800 MPN/100mL against a permitted limit of 2030 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Chlorine, total residual
1% over limit
Discharged 0.1 mg/L against a permitted limit of 0.099 mg/L (INST MAX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
16% over limit
Discharged 17.4 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
15% over limit
Discharged 5.13 mg/L against a permitted limit of 6 mg/L (MINIMUM)
DMR, Limited - Numeric Violation
March 31, 2026
BOD, 5-day, 20 deg. C
31% over limit
Discharged 26.19 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
33% over limit
Discharged 39.9 mg/L against a permitted limit of 30 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
18% over limit
Discharged 35.53 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
67% over limit
Discharged 75 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
February 28, 2026
E. coli
885% over limit
Discharged 20000 MPN/100mL against a permitted limit of 2030 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
202% over limit
Discharged 1905 MPN/100mL against a permitted limit of 630 MPN/100mL (GEO MEAN)
DMR, Limited - Numeric Violation
January 31, 2026
E. coli
25% over limit
Discharged 787 MPN/100mL against a permitted limit of 630 MPN/100mL (GEO MEAN)
DMR, Limited - Numeric Violation
E. coli
18% over limit
Discharged 2400 MPN/100mL against a permitted limit of 2030 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
33% over limit
Discharged 60 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
0% over limit
Discharged 5.99 mg/L against a permitted limit of 6 mg/L (MINIMUM)
DMR, Limited - Numeric Violation
December 31, 2025
Chlorine, total residual
233% over limit
Discharged 0.33 mg/L against a permitted limit of 0.099 mg/L (INST MAX)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
6% over limit
Discharged 5.63 mg/L against a permitted limit of 6 mg/L (MINIMUM)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
117% over limit
Discharged 65 mg/L against a permitted limit of 30 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
135% over limit
Discharged 46.97 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
182% over limit
Discharged 127 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
E. coli
255% over limit
Discharged 7207 MPN/100mL against a permitted limit of 2030 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
217% over limit
Discharged 95.23 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
2217% over limit
Discharged 14600 MPN/100mL against a permitted limit of 630 MPN/100mL (GEO MEAN)
DMR, Limited - Numeric Violation
Solids, total suspended
2% over limit
Discharged 70.61515941 kg/d against a permitted limit of 69.28947942 kg/d (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2025
Oxygen, dissolved [DO]
42% over limit
Discharged 3.5 mg/L against a permitted limit of 6 mg/L (MO MIN)
DMR, Limited - Numeric Violation
Chlorine, total residual
304% over limit
Discharged 0.4 mg/L against a permitted limit of 0.099 mg/L (INST MAX)
DMR, Limited - Numeric Violation
E. coli
319% over limit
Discharged 8500 MPN/100mL against a permitted limit of 2030 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
52% over limit
Discharged 960 MPN/100mL against a permitted limit of 630 MPN/100mL (GEO MEAN)
DMR, Limited - Numeric Violation
October 31, 2025
Chlorine, total residual
496% over limit
Discharged 0.59 mg/L against a permitted limit of 0.099 mg/L (INST MAX)
DMR, Limited - Numeric Violation
E. coli
300% over limit
Discharged 2522 MPN/100mL against a permitted limit of 630 MPN/100mL (GEO MEAN)
DMR, Limited - Numeric Violation
E. coli
885% over limit
Discharged 20000 MPN/100mL against a permitted limit of 2030 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
September 30, 2025
Chlorine, total residual
2122% over limit
Discharged 2.2 mg/L against a permitted limit of 0.099 mg/L (INST MAX)
DMR, Limited - Numeric Violation
E. coli
4826% over limit
Discharged 20000 MPN/100mL against a permitted limit of 406 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
123% over limit
Discharged 281 MPN/100mL against a permitted limit of 126 MPN/100mL (GEO MEAN)
DMR, Limited - Numeric Violation
August 31, 2025
pH
0% over limit
Discharged 6.39 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Numeric Violation
E. coli
4826% over limit
Discharged 20000 MPN/100mL against a permitted limit of 406 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Chlorine, total residual
1011% over limit
Discharged 1.1 mg/L against a permitted limit of 0.099 mg/L (INST MAX)
DMR, Limited - Numeric Violation
E. coli
385% over limit
Discharged 611 MPN/100mL against a permitted limit of 126 MPN/100mL (GEO MEAN)
DMR, Limited - Numeric Violation
July 31, 2025
Solids, total suspended
177% over limit
Discharged 41.5 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
281% over limit
Discharged 85.8 mg/L against a permitted limit of 22.5 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
55% over limit
Discharged 15.46 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
104% over limit
Discharged 70.68416741 kg/d against a permitted limit of 34.64473971 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
14% over limit
Discharged 26.31747178 kg/d against a permitted limit of 23.09497981 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
29% over limit
Discharged 2.573 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
4826% over limit
Discharged 20000 MPN/100mL against a permitted limit of 406 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
3009% over limit
Discharged 3917 MPN/100mL against a permitted limit of 126 MPN/100mL (GEO MEAN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
100% over limit
Discharged 6 mg/L against a permitted limit of 3 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 5.75 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
87% over limit
Discharged 28.1 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
June 30, 2025
pH
0% over limit
Discharged 5.7 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Numeric Violation
E. coli
1893% over limit
Discharged 2511 MPN/100mL against a permitted limit of 126 MPN/100mL (GEO MEAN)
DMR, Limited - Numeric Violation
E. coli
4826% over limit
Discharged 20000 MPN/100mL against a permitted limit of 406 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
15% over limit
Discharged 5.32451196 kg/d against a permitted limit of 4.61717996 kg/d (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2025
pH
0% over limit
Discharged 5.84 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Numeric Violation
E. coli
207% over limit
Discharged 387 MPN/100mL against a permitted limit of 126 MPN/100mL (GEO MEAN)
DMR, Limited - Numeric Violation
E. coli
4826% over limit
Discharged 20000 MPN/100mL against a permitted limit of 406 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
April 30, 2025
BOD, carbonaceous [5 day, 20 C]
31% over limit
Discharged 13.13 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
44% over limit
Discharged 32.4 mg/L against a permitted limit of 22.5 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
E. coli
19% over limit
Discharged 749 MPN/100mL against a permitted limit of 630 MPN/100mL (GEO MEAN)
DMR, Limited - Numeric Violation
E. coli
471% over limit
Discharged 11600 MPN/100mL against a permitted limit of 2030 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 5.94 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
2% over limit
Discharged 23.4849658 kg/d against a permitted limit of 23.09497981 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
108% over limit
Discharged 31.2 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
March 31, 2025
BOD, 5-day, 20 deg. C
87% over limit
Discharged 37.3 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
70% over limit
Discharged 78.30501134 kg/d against a permitted limit of 46.19449961 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
149% over limit
Discharged 74.7 mg/L against a permitted limit of 30 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
33% over limit
Discharged 4.01 mg/L against a permitted limit of 6 mg/L (MO MIN)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 5.65 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Numeric Violation
E. coli
885% over limit
Discharged 20000 MPN/100mL against a permitted limit of 2030 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
61% over limit
Discharged 48.3 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
54% over limit
Discharged 69.2 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 9.4 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Numeric Violation
E. coli
3075% over limit
Discharged 20000 MPN/100mL against a permitted limit of 630 MPN/100mL (GEO MEAN)
DMR, Limited - Numeric Violation
Solids, total suspended
32% over limit
Discharged 91.49416523 kg/d against a permitted limit of 69.28947942 kg/d (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2025
E. coli
885% over limit
Discharged 20000 MPN/100mL against a permitted limit of 2030 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
50% over limit
Discharged 44.9 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
22% over limit
Discharged 4.69 mg/L against a permitted limit of 6 mg/L (MO MIN)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
70% over limit
Discharged 34 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 5.41 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Numeric Violation
Solids, total suspended
70% over limit
Discharged 76.4 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
E. coli
2682% over limit
Discharged 17528 MPN/100mL against a permitted limit of 630 MPN/100mL (GEO MEAN)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
155% over limit
Discharged 76.5 mg/L against a permitted limit of 30 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
January 31, 2025
E. coli
885% over limit
Discharged 20000 MPN/100mL against a permitted limit of 2030 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
19% over limit
Discharged 35.7 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
33% over limit
Discharged 59.7 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
46% over limit
Discharged 3.22 mg/L against a permitted limit of 6 mg/L (MO MIN)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 6.07 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
99% over limit
Discharged 39.8 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Chlorine, total residual
193% over limit
Discharged 0.29 mg/L against a permitted limit of 0.099 mg/L (INST MAX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
76% over limit
Discharged 52.9 mg/L against a permitted limit of 30 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
E. coli
683% over limit
Discharged 4932 MPN/100mL against a permitted limit of 630 MPN/100mL (GEO MEAN)
DMR, Limited - Numeric Violation
December 31, 2024
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.967 MGD against a permitted limit of 0 MGD (DAILY MX)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 7.9 SU against a permitted limit of 9 SU (MAXIMUM)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0 mg/L against a permitted limit of 30 mg/L (WKLY AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.538 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
Oxygen, dissolved [DO]
0% over limit
Discharged 7.1 mg/L against a permitted limit of 6 mg/L (MO MIN)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Overdue
pH
0% over limit
Discharged 6.1 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Overdue
pH
0% over limit
Discharged 6.1 SU against a permitted limit of 6.5 SU (MINIMUM)
DMR, Limited - Numeric Violation
E. coli
0% over limit
Discharged 0 MPN/100mL against a permitted limit of 2030 MPN/100mL (DAILY MX)
DMR, Limited - Overdue
Chlorine, total residual
1% over limit
Discharged 0.1 mg/L against a permitted limit of 0.099 mg/L (INST MAX)
DMR, Limited - Overdue
Chlorine, total residual
1% over limit
Discharged 0.1 mg/L against a permitted limit of 0.099 mg/L (INST MAX)
DMR, Limited - Numeric Violation
Solids, total suspended
0% over limit
Discharged 0 kg/d against a permitted limit of 69.28947942 kg/d (MO AVG)
DMR, Limited - Overdue
E. coli
0% over limit
Discharged 0 MPN/100mL against a permitted limit of 630 MPN/100mL (GEO MEAN)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0 kg/d against a permitted limit of 46.19449961 kg/d (MO AVG)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Overdue
November 30, 2024
BOD, 5-day, 20 deg. C
12% over limit
Discharged 51.62887957 kg/d against a permitted limit of 46.19449961 kg/d (MO AVG)
DMR, Limited - Numeric Violation
E. coli
93% over limit
Discharged 1218 MPN/100mL against a permitted limit of 630 MPN/100mL (GEO MEAN)
DMR, Limited - Numeric Violation
E. coli
8% over limit
Discharged 2200 MPN/100mL against a permitted limit of 2030 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
October 31, 2024
E. coli
7% over limit
Discharged 2180 MPN/100mL against a permitted limit of 2030 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
August 31, 2024
BOD, carbonaceous [5 day, 20 C]
53% over limit
Discharged 15.33 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
53% over limit
Discharged 23 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
37% over limit
Discharged 20.6 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
113% over limit
Discharged 48 mg/L against a permitted limit of 22.5 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
July 31, 2024
E. coli
83% over limit
Discharged 745 MPN/100mL against a permitted limit of 406 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)