OKLAHOMA CITY- S CANADIAN
NPDES ID: OK0038385
S — SNC: Compliance schedule violation
The facility missed a deadline in its compliance schedule by more than 90 days.
Violations
January 31, 2026
BOD, 5-day, 20 deg. C
7% over limit
Discharged 32 mg/L against a permitted limit of 30 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
December 31, 2025
Whole Effluent Toxicity [WET] - C. dubia
44% over limit
Discharged 56 % against a permitted limit of 100 % (7 DA MIN)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
23% over limit
Discharged 37 mg/L against a permitted limit of 30 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
November 30, 2025
BOD, 5-day, 20 deg. C
27% over limit
Discharged 38 mg/L against a permitted limit of 30 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
25% over limit
Discharged 25 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
1% over limit
Discharged 460.35599613 kg/d against a permitted limit of 454.36319618 kg/d (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2025
BOD, 5-day, 20 deg. C
57% over limit
Discharged 47 mg/L against a permitted limit of 30 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
11% over limit
Discharged 50 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
42% over limit
Discharged 645.67879457 kg/d against a permitted limit of 454.36319618 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
10% over limit
Discharged 33 mg/L against a permitted limit of 30 mg/L (MO AVG)
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
September 30, 2025
E. coli
496% over limit
Discharged 2420 MPN/100mL against a permitted limit of 406 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
39% over limit
Discharged 473.43119602 kg/d against a permitted limit of 340.77239714 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
17% over limit
Discharged 26.3 mg/L against a permitted limit of 22.5 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
47% over limit
Discharged 22 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2025
Solids, total suspended
97% over limit
Discharged 1344.6571887 kg/d against a permitted limit of 681.54479427 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
136% over limit
Discharged 106 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
127% over limit
Discharged 51.1 mg/L against a permitted limit of 22.5 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
140% over limit
Discharged 36 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
113% over limit
Discharged 64 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
117% over limit
Discharged 739.24819379 kg/d against a permitted limit of 340.77239714 kg/d (MO AVG)
DMR, Limited - Numeric Violation
July 31, 2025
Solids, total suspended
36% over limit
Discharged 61 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
E. coli
4480% over limit
Discharged 18596 MPN/100mL against a permitted limit of 406 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
108% over limit
Discharged 709.64739404 kg/d against a permitted limit of 340.77239714 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
51% over limit
Discharged 1028.30999136 kg/d against a permitted limit of 681.54479427 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
90% over limit
Discharged 42.7 mg/L against a permitted limit of 22.5 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
E. coli
244% over limit
Discharged 433 MPN/100mL against a permitted limit of 126 MPN/100mL (GEO MEAN)
DMR, Limited - Numeric Violation
Solids, total suspended
43% over limit
Discharged 43 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
100% over limit
Discharged 30 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Nitrogen, ammonia total [as N]
22% over limit
Discharged 5 mg/L against a permitted limit of 4.1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
90% over limit
Discharged 57 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Chlorine, total residual
41% over limit
Discharged 0.14 mg/L against a permitted limit of 0.099 mg/L (INST MAX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
150% over limit
Discharged 56.3 mg/L against a permitted limit of 22.5 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
13% over limit
Discharged 11.2 mg/L against a permitted limit of 9.9 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
56% over limit
Discharged 70 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
26% over limit
Discharged 3.7 mg/L against a permitted limit of 5 mg/L (MINIMUM)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
213% over limit
Discharged 47 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
461% over limit
Discharged 1910.74978395 kg/d against a permitted limit of 340.77239714 kg/d (MO AVG)
DMR, Limited - Numeric Violation
E. coli
1092% over limit
Discharged 4839 MPN/100mL against a permitted limit of 406 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
103% over limit
Discharged 188.95479841 kg/d against a permitted limit of 93.16079922 kg/d (MO AVG)
DMR, Limited - Numeric Violation
E. coli
75% over limit
Discharged 220 MPN/100mL against a permitted limit of 126 MPN/100mL (GEO MEAN)
DMR, Limited - Numeric Violation
Solids, total suspended
246% over limit
Discharged 2361.52638016 kg/d against a permitted limit of 681.54479427 kg/d (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2025
E. coli
2880% over limit
Discharged 12098 MPN/100mL against a permitted limit of 406 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
E. coli
415% over limit
Discharged 649 MPN/100mL against a permitted limit of 126 MPN/100mL (GEO MEAN)
DMR, Limited - Numeric Violation
Solids, total suspended
252% over limit
Discharged 2398.20957985 kg/d against a permitted limit of 681.54479427 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
275% over limit
Discharged 1702.77238569 kg/d against a permitted limit of 454.36319618 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
109% over limit
Discharged 94 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1% over limit
Discharged 93.88719921 kg/d against a permitted limit of 93.16079922 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
57% over limit
Discharged 47 mg/L against a permitted limit of 30 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
97% over limit
Discharged 59 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
110% over limit
Discharged 42 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2025
BOD, 5-day, 20 deg. C
151% over limit
Discharged 1140.72039042 kg/d against a permitted limit of 454.36319618 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
40% over limit
Discharged 28 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
17% over limit
Discharged 35 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
90% over limit
Discharged 57 mg/L against a permitted limit of 30 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
122% over limit
Discharged 1510.9119873 kg/d against a permitted limit of 681.54479427 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
82% over limit
Discharged 82 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
February 28, 2025
BOD, 5-day, 20 deg. C
9% over limit
Discharged 497.17539582 kg/d against a permitted limit of 454.36319618 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
20% over limit
Discharged 24 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
3% over limit
Discharged 31 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2025
Solids, total suspended
27% over limit
Discharged 38 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
31% over limit
Discharged 889.43139253 kg/d against a permitted limit of 681.54479427 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
11% over limit
Discharged 50 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
56% over limit
Discharged 706.74179406 kg/d against a permitted limit of 454.36319618 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
53% over limit
Discharged 46 mg/L against a permitted limit of 30 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
50% over limit
Discharged 30 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2024
Solids, total suspended
3% over limit
Discharged 31 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
57% over limit
Discharged 47 mg/L against a permitted limit of 30 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
65% over limit
Discharged 33 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
31% over limit
Discharged 597.28239498 kg/d against a permitted limit of 454.36319618 kg/d (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2024
Solids, total suspended
3% over limit
Discharged 703.79079409 kg/d against a permitted limit of 681.54479427 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
20% over limit
Discharged 24 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
30% over limit
Discharged 590.65399504 kg/d against a permitted limit of 454.36319618 kg/d (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2024
BOD, 5-day, 20 deg. C
19% over limit
Discharged 405.69439659 kg/d against a permitted limit of 340.77239714 kg/d (MO AVG)
DMR, Limited - Numeric Violation
E. coli
879% over limit
Discharged 3973 MPN/100mL against a permitted limit of 406 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
47% over limit
Discharged 22 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
19% over limit
Discharged 11.8 mg/L against a permitted limit of 9.9 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
76% over limit
Discharged 39.6 mg/L against a permitted limit of 22.5 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
August 31, 2024
E. coli
1092% over limit
Discharged 4839 MPN/100mL against a permitted limit of 406 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Solids, total suspended
91% over limit
Discharged 1299.30258908 kg/d against a permitted limit of 681.54479427 kg/d (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
120% over limit
Discharged 33 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
178% over limit
Discharged 125 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
90% over limit
Discharged 18.8 mg/L against a permitted limit of 9.9 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
109% over limit
Discharged 194.40279837 kg/d against a permitted limit of 93.16079922 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
107% over limit
Discharged 8.5 mg/L against a permitted limit of 4.1 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
109% over limit
Discharged 713.869594 kg/d against a permitted limit of 340.77239714 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
90% over limit
Discharged 57 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
135% over limit
Discharged 52.9 mg/L against a permitted limit of 22.5 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
E. coli
117% over limit
Discharged 273 MPN/100mL against a permitted limit of 126 MPN/100mL (GEO MEAN)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
August 1, 2026 (4 days ago)