VILLAGE OF WATERPROOF WWTP
NPDES ID: LA0033031
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: 2 compliance schedule violations, 2 single-event violations.
Violations
March 31, 2026
Chlorine, total residual
627% over limit
Discharged 0.24 mg/L against a permitted limit of 0.033 mg/L (INST MAX)
DMR, Limited - Numeric Violation
Coliform, fecal general
845% over limit
Discharged 1890 MPN/100mL against a permitted limit of 200 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
93% over limit
Discharged 19.3 mg/L against a permitted limit of 10 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
306% over limit
Discharged 60.88 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
509% over limit
Discharged 60.88 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
40% over limit
Discharged 21 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
373% over limit
Discharged 1890 MPN/100mL against a permitted limit of 400 MPN/100mL (WKAV GEO)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
286% over limit
Discharged 19.3 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2026
BOD, carbonaceous [5 day, 20 C]
206% over limit
Discharged 45.93 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
315% over limit
Discharged 1660 MPN/100mL against a permitted limit of 400 MPN/100mL (WKAV GEO)
DMR, Limited - Numeric Violation
Coliform, fecal general
158% over limit
Discharged 515 MPN/100mL against a permitted limit of 200 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
Solids, total suspended
23% over limit
Discharged 18.5 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
54% over limit
Discharged 15.4 mg/L against a permitted limit of 10 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Chlorine, total residual
264% over limit
Discharged 0.12 mg/L against a permitted limit of 0.033 mg/L (INST MAX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
163% over limit
Discharged 13.15 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
280% over limit
Discharged 38.01 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2026
Nitrogen, ammonia total [as N]
54% over limit
Discharged 15.4 mg/L against a permitted limit of 10 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
315% over limit
Discharged 1660 MPN/100mL against a permitted limit of 400 MPN/100mL (WKAV GEO)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
87% over limit
Discharged 9.35 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
120% over limit
Discharged 22.02 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Chlorine, total residual
203% over limit
Discharged 0.1 mg/L against a permitted limit of 0.033 mg/L (INST MAX)
DMR, Limited - Numeric Violation
Coliform, fecal general
715% over limit
Discharged 1630 MPN/100mL against a permitted limit of 200 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
Solids, total suspended
61% over limit
Discharged 37 mg/L against a permitted limit of 23 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
65% over limit
Discharged 24.82 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
114% over limit
Discharged 32.13 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
December 31, 2025
Nitrogen, ammonia total [as N]
41% over limit
Discharged 14.1 mg/L against a permitted limit of 10 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
158% over limit
Discharged 12.9 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
90% over limit
Discharged 19.03 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
606% over limit
Discharged 1411 MPN/100mL against a permitted limit of 200 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
Coliform, fecal general
315% over limit
Discharged 1660 MPN/100mL against a permitted limit of 400 MPN/100mL (WKAV GEO)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
33% over limit
Discharged 19.98 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
November 30, 2025
Chlorine, total residual
173% over limit
Discharged 0.09 mg/L against a permitted limit of 0.033 mg/L (INST MAX)
DMR, Limited - Numeric Violation
Solids, total suspended
23% over limit
Discharged 18.46 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
513% over limit
Discharged 30.65 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
844% over limit
Discharged 1887 MPN/100mL against a permitted limit of 200 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
Coliform, fecal general
510% over limit
Discharged 2440 MPN/100mL against a permitted limit of 400 MPN/100mL (WKAV GEO)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
48% over limit
Discharged 22.26 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
242% over limit
Discharged 34.2 mg/L against a permitted limit of 10 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
101% over limit
Discharged 20.1 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2025
Nitrogen, ammonia total [as N]
278% over limit
Discharged 37.8 mg/L against a permitted limit of 10 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
388% over limit
Discharged 975 MPN/100mL against a permitted limit of 200 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
242% over limit
Discharged 51.36 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
260% over limit
Discharged 1440 MPN/100mL against a permitted limit of 400 MPN/100mL (WKAV GEO)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
639% over limit
Discharged 36.96 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
408% over limit
Discharged 50.81 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
51% over limit
Discharged 22.58 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2025
BOD, carbonaceous [5 day, 20 C]
335% over limit
Discharged 43.5 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
60% over limit
Discharged 8.02 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
13% over limit
Discharged 17 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
600% over limit
Discharged 1400 MPN/100mL against a permitted limit of 200 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
Chlorine, total residual
112% over limit
Discharged 0.07 mg/L against a permitted limit of 0.033 mg/L (INST MAX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
190% over limit
Discharged 43.5 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
250% over limit
Discharged 1400 MPN/100mL against a permitted limit of 400 MPN/100mL (WKAV GEO)
DMR, Limited - Numeric Violation
August 31, 2025
Coliform, fecal general
300% over limit
Discharged 1600 MPN/100mL against a permitted limit of 400 MPN/100mL (WKAV GEO)
DMR, Limited - Numeric Violation
Solids, total suspended
4% over limit
Discharged 24 mg/L against a permitted limit of 23 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
42% over limit
Discharged 14.2 mg/L against a permitted limit of 10 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
73% over limit
Discharged 17.34 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
196% over limit
Discharged 44.37 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Chlorine, total residual
718% over limit
Discharged 0.27 mg/L against a permitted limit of 0.033 mg/L (INST MAX)
DMR, Limited - Numeric Violation
July 31, 2025
Nitrogen, ammonia total [as N]
27% over limit
Discharged 6.37 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
40% over limit
Discharged 279 MPN/100mL against a permitted limit of 200 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
Chlorine, total residual
82% over limit
Discharged 0.06 mg/L against a permitted limit of 0.033 mg/L (INST MAX)
DMR, Limited - Numeric Violation
Coliform, fecal general
50% over limit
Discharged 600 MPN/100mL against a permitted limit of 400 MPN/100mL (WKAV GEO)
DMR, Limited - Numeric Violation
June 30, 2025
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.0036 MGD against a permitted limit of 0 MGD (WKLY AVG)
DMR, Monitor Only - Overdue
Chlorine, total residual
294% over limit
Discharged 0.13 mg/L against a permitted limit of 0.033 mg/L (INST MAX)
DMR, Limited - Overdue
Chlorine, total residual
294% over limit
Discharged 0.13 mg/L against a permitted limit of 0.033 mg/L (INST MAX)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 0.06356 kg/d against a permitted limit of 5.90199995 kg/d (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 0.03632 kg/d against a permitted limit of 8.62599993 kg/d (MO AVG)
DMR, Limited - Overdue
Coliform, fecal general
610% over limit
Discharged 1420 MPN/100mL against a permitted limit of 200 MPN/100mL (MOAV GEO)
DMR, Limited - Overdue
Coliform, fecal general
610% over limit
Discharged 1420 MPN/100mL against a permitted limit of 200 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
0% over limit
Discharged 0.01362 kg/d against a permitted limit of 2.72399998 kg/d (MO AVG)
DMR, Limited - Overdue
Solids, total suspended
0% over limit
Discharged 2.5 mg/L against a permitted limit of 15 mg/L (MO AVG)
DMR, Limited - Overdue
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 4.6 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Overdue
pH
0% over limit
Discharged 7.4 SU against a permitted limit of 6 SU (INST MIN)
DMR, Limited - Overdue
Coliform, fecal general
255% over limit
Discharged 1420 MPN/100mL against a permitted limit of 400 MPN/100mL (WKAV GEO)
DMR, Limited - Overdue
Coliform, fecal general
255% over limit
Discharged 1420 MPN/100mL against a permitted limit of 400 MPN/100mL (WKAV GEO)
DMR, Limited - Numeric Violation
Solids, total suspended
0% over limit
Discharged 2.5 mg/L against a permitted limit of 23 mg/L (WKLY AVG)
DMR, Limited - Overdue
BOD, carbonaceous [5 day, 20 C]
0% over limit
Discharged 4.6 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 1 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Overdue
pH
0% over limit
Discharged 7.4 SU against a permitted limit of 9 SU (INST MAX)
DMR, Limited - Overdue
Flow, in conduit or thru treatment plant
0% over limit
Discharged 0.0036 MGD against a permitted limit of 0 MGD (MO AVG)
DMR, Monitor Only - Overdue
Nitrogen, ammonia total [as N]
0% over limit
Discharged 1 mg/L against a permitted limit of 10 mg/L (WKLY AVG)
DMR, Limited - Overdue
May 31, 2025
Nitrogen, ammonia total [as N]
19% over limit
Discharged 11.9 mg/L against a permitted limit of 10 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
138% over limit
Discharged 11.9 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)