GREAT FALLS W C CHILDERS WWTP
NPDES ID: SC0021211
D — SNC: Discharge monitoring report not received
The facility didn't submit its required discharge monitoring report.
This quarter: 62 reporting violations.
Violations
April 30, 2026
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0.35412 kg/d against a permitted limit of 158.89999866 kg/d (MO AVG)
DMR, Limited - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 0 mg/L against a permitted limit of 3 mg/L (WKLY AVG)
DMR, Limited - Overdue
Nitrogen, total [as N]
0% over limit
Discharged 0.075 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0.90799999 kg/d against a permitted limit of 238.349998 kg/d (WKLY AVG)
DMR, Limited - Overdue
Nitrogen, total [as N]
0% over limit
Discharged 0.0292376 kg/d against a permitted limit of 0 kg/d (MO AVG)
DMR, Monitor Only - Overdue
Chlorine, total residual
0% over limit
Discharged 0.43 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Overdue
E. coli
0% over limit
Discharged 3.1 MPN/100mL against a permitted limit of 349 MPN/100mL (DAILY MX)
DMR, Limited - Overdue
Chlorine, total residual
0% over limit
Discharged 0.1789668 kg/d against a permitted limit of 2.63319998 kg/d (MO AVG)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 3.2 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Overdue
E. coli
0% over limit
Discharged 0 MPN/100mL against a permitted limit of 800 MPN/100mL (DAILY MX)
DMR, Limited - Overdue
Nitrogen, total [as N]
0% over limit
Discharged 0.075 mg/L against a permitted limit of 0 mg/L (WKLY AVG)
DMR, Monitor Only - Overdue
Chlorine, total residual
0% over limit
Discharged 0.2970976 kg/d against a permitted limit of 5.31179996 kg/d (DAILY MX)
DMR, Limited - Overdue
Oxygen, dissolved [DO]
0% over limit
Discharged 7 mg/L against a permitted limit of 5 mg/L (MINIMUM)
DMR, Limited - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 0 kg/d against a permitted limit of 8.17199993 kg/d (WKLY AVG)
DMR, Limited - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 0 kg/d against a permitted limit of 5.44799995 kg/d (MO AVG)
DMR, Limited - Overdue
pH
0% over limit
Discharged 6.1 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
BOD, 5-day, percent removal
0% over limit
Discharged 100 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Overdue
Nitrogen, total [as N]
0% over limit
Discharged 0.0292376 kg/d against a permitted limit of 0 kg/d (WKLY AVG)
DMR, Monitor Only - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 0 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 1.1 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 10.3 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Overdue
pH
0% over limit
Discharged 7.7 SU against a permitted limit of 8.5 SU (MAXIMUM)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 6.12 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 2.30631998 kg/d against a permitted limit of 158.89999866 kg/d (MO AVG)
DMR, Limited - Overdue
E. coli
0% over limit
Discharged 0 MPN/100mL against a permitted limit of 126 MPN/100mL (30DAVGEO)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 2.90559998 kg/d against a permitted limit of 238.349998 kg/d (WKLY AVG)
DMR, Limited - Overdue
Solids, suspended percent removal
0% over limit
Discharged 98 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Overdue
E. coli
0% over limit
Discharged 1.3 MPN/100mL against a permitted limit of 126 MPN/100mL (30DAVGEO)
DMR, Limited - Overdue
Chlorine, total residual
0% over limit
Discharged 0.48 mg/L against a permitted limit of 1 mg/L (DAILY MX)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.1 MGD against a permitted limit of 0 MGD (WKLY AVG)
DMR, Monitor Only - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.09 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
March 31, 2026
Solids, total suspended
0% over limit
Discharged 7.9 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Overdue
Chlorine, total residual
0% over limit
Discharged 0.2498362 kg/d against a permitted limit of 5.31179996 kg/d (DAILY MX)
DMR, Limited - Overdue
Nitrogen, total [as N]
0% over limit
Discharged 0 kg/d against a permitted limit of 0 kg/d (WKLY AVG)
DMR, Monitor Only - Overdue
Solids, suspended percent removal
0% over limit
Discharged 88 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Overdue
Solids, total suspended
10% over limit
Discharged 49.3 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Overdue
Solids, total suspended
10% over limit
Discharged 49.3 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 7.5 SU against a permitted limit of 8.5 SU (MAXIMUM)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 1.36199999 kg/d against a permitted limit of 238.349998 kg/d (WKLY AVG)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.133 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
Solids, total suspended
0% over limit
Discharged 25.87799978 kg/d against a permitted limit of 238.349998 kg/d (WKLY AVG)
DMR, Limited - Overdue
E. coli
0% over limit
Discharged 1 MPN/100mL against a permitted limit of 126 MPN/100mL (30DAVGEO)
DMR, Limited - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 0 mg/L against a permitted limit of 3 mg/L (WKLY AVG)
DMR, Limited - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 0 kg/d against a permitted limit of 5.44799995 kg/d (MO AVG)
DMR, Limited - Overdue
E. coli
0% over limit
Discharged 0 MPN/100mL against a permitted limit of 800 MPN/100mL (DAILY MX)
DMR, Limited - Overdue
E. coli
0% over limit
Discharged 1 MPN/100mL against a permitted limit of 349 MPN/100mL (DAILY MX)
DMR, Limited - Overdue
Nitrogen, total [as N]
0% over limit
Discharged 0 kg/d against a permitted limit of 0 kg/d (MO AVG)
DMR, Monitor Only - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 0 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 4.08599997 kg/d against a permitted limit of 158.89999866 kg/d (MO AVG)
DMR, Limited - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 0 kg/d against a permitted limit of 8.17199993 kg/d (WKLY AVG)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0.3405 kg/d against a permitted limit of 158.89999866 kg/d (MO AVG)
DMR, Limited - Overdue
Chlorine, total residual
0% over limit
Discharged 0.44 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Overdue
Chlorine, total residual
0% over limit
Discharged 0.48 mg/L against a permitted limit of 1 mg/L (DAILY MX)
DMR, Limited - Overdue
Nitrogen, total [as N]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (WKLY AVG)
DMR, Monitor Only - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 0.65 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 0.179 MGD against a permitted limit of 0 MGD (WKLY AVG)
DMR, Monitor Only - Overdue
Oxygen, dissolved [DO]
0% over limit
Discharged 7 mg/L against a permitted limit of 5 mg/L (MINIMUM)
DMR, Limited - Overdue
Chlorine, total residual
0% over limit
Discharged 0.2069786 kg/d against a permitted limit of 2.63319998 kg/d (MO AVG)
DMR, Limited - Overdue
pH
0% over limit
Discharged 6.1 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
Nitrogen, total [as N]
0% over limit
Discharged 0 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
E. coli
0% over limit
Discharged 0 MPN/100mL against a permitted limit of 126 MPN/100mL (30DAVGEO)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 2.6 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Overdue
BOD, 5-day, percent removal
0% over limit
Discharged 98 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Overdue
July 31, 2025
Phosphorus, total [as P]
23% over limit
Discharged 3.7 mg/L against a permitted limit of 3 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Phosphorus, total [as P]
85% over limit
Discharged 3.7 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2025
Phosphorus, total [as P]
25% over limit
Discharged 2.5 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2025
Solids, total suspended
0% over limit
Discharged 25.2 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 3.2 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 11.2 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Overdue
E. coli
0% over limit
Discharged 0 MPN/100mL against a permitted limit of 126 MPN/100mL (30DAVGEO)
DMR, Limited - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 0.74909999 kg/d against a permitted limit of 8.17199993 kg/d (WKLY AVG)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 4.17679996 kg/d against a permitted limit of 238.349998 kg/d (WKLY AVG)
DMR, Limited - Overdue
BOD, 5-day, percent removal
0% over limit
Discharged 100 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.408 MGD against a permitted limit of 0 MGD (WKLY AVG)
DMR, Monitor Only - Overdue
pH
0% over limit
Discharged 6.1 SU against a permitted limit of 6 SU (MINIMUM)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 1.99759998 kg/d against a permitted limit of 158.89999866 kg/d (MO AVG)
DMR, Limited - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 1.3 mg/L against a permitted limit of 2 mg/L (MO AVG)
DMR, Limited - Overdue
Chlorine, total residual
0% over limit
Discharged 0.349126 kg/d against a permitted limit of 2.63319998 kg/d (MO AVG)
DMR, Limited - Overdue
Chlorine, total residual
0% over limit
Discharged 0.42 mg/L against a permitted limit of 1 mg/L (DAILY MX)
DMR, Limited - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 1.3 mg/L against a permitted limit of 3 mg/L (WKLY AVG)
DMR, Limited - Overdue
Chlorine, total residual
0% over limit
Discharged 0.53572 kg/d against a permitted limit of 5.31179996 kg/d (DAILY MX)
DMR, Limited - Overdue
Chlorine, total residual
0% over limit
Discharged 0.38 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Overdue
Nitrogen, total [as N]
0% over limit
Discharged 27.9 mg/L against a permitted limit of 0 mg/L (WKLY AVG)
DMR, Monitor Only - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.264 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
Nitrogen, total [as N]
0% over limit
Discharged 16.10791986 kg/d against a permitted limit of 0 kg/d (WKLY AVG)
DMR, Monitor Only - Overdue
E. coli
0% over limit
Discharged 1 MPN/100mL against a permitted limit of 349 MPN/100mL (DAILY MX)
DMR, Limited - Overdue
pH
0% over limit
Discharged 7.7 SU against a permitted limit of 8.5 SU (MAXIMUM)
DMR, Limited - Overdue
Nitrogen, total [as N]
0% over limit
Discharged 16.10791986 kg/d against a permitted limit of 0 kg/d (MO AVG)
DMR, Monitor Only - Overdue
E. coli
0% over limit
Discharged 0 MPN/100mL against a permitted limit of 800 MPN/100mL (DAILY MX)
DMR, Limited - Overdue
BOD, 5-day, 20 deg. C
0% over limit
Discharged 1.52 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Overdue
Oxygen, dissolved [DO]
0% over limit
Discharged 7.3 mg/L against a permitted limit of 5 mg/L (MINIMUM)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 36.59239969 kg/d against a permitted limit of 238.349998 kg/d (WKLY AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 13.89239988 kg/d against a permitted limit of 158.89999866 kg/d (MO AVG)
DMR, Limited - Overdue
Solids, suspended percent removal
0% over limit
Discharged 95 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Overdue
Nitrogen, total [as N]
0% over limit
Discharged 27.9 mg/L against a permitted limit of 0 mg/L (MO AVG)
DMR, Monitor Only - Overdue
E. coli
0% over limit
Discharged 1 MPN/100mL against a permitted limit of 126 MPN/100mL (30DAVGEO)
DMR, Limited - Overdue
Phosphorus, total [as P]
0% over limit
Discharged 0.74909999 kg/d against a permitted limit of 5.44799995 kg/d (MO AVG)
DMR, Limited - Overdue
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 16, 2026 (7 hours ago)