BONO, CITY OF
NPDES ID: AR0020699
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: 7 effluent violations.
Violations
June 30, 2026
Nitrogen, ammonia total [as N]
121% over limit
Discharged 16.6 mg/L against a permitted limit of 7.5 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
104% over limit
Discharged 10.2 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2026
Nitrogen, ammonia total [as N]
131% over limit
Discharged 17.3 mg/L against a permitted limit of 7.5 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
240% over limit
Discharged 17 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2026
Nitrogen, ammonia total [as N]
181% over limit
Discharged 14.6 mg/L against a permitted limit of 5.2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
215% over limit
Discharged 16.4 mg/L against a permitted limit of 5.2 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
521% over limit
Discharged 30.44523974 kg/d against a permitted limit of 4.90319996 kg/d (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2026
Solids, total suspended
30% over limit
Discharged 39 mg/L against a permitted limit of 30 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
52% over limit
Discharged 22.4 mg/L against a permitted limit of 14.7 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
28% over limit
Discharged 15.4 mg/L against a permitted limit of 12 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
10% over limit
Discharged 22 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2000 MPN/100mL against a permitted limit of 2000 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2857 MPN/100mL against a permitted limit of 1000 MPN/100mL (30DA GEO)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
14% over limit
Discharged 12.90721989 kg/d against a permitted limit of 11.3499999 kg/d (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2026
Coliform, fecal general
Limit violation
Discharged 2000 MPN/100mL against a permitted limit of 2000 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2510 MPN/100mL against a permitted limit of 1000 MPN/100mL (30DA GEO)
DMR, Limited - Numeric Violation
January 31, 2026
Coliform, fecal general
Limit violation
Discharged 2000 MPN/100mL against a permitted limit of 2000 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2000 MPN/100mL against a permitted limit of 1000 MPN/100mL (30DA GEO)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
25% over limit
Discharged 18.4 mg/L against a permitted limit of 14.7 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
49% over limit
Discharged 17.9 mg/L against a permitted limit of 12 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2025
Nitrogen, ammonia total [as N]
84% over limit
Discharged 22.1 mg/L against a permitted limit of 12 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
61% over limit
Discharged 23.7 mg/L against a permitted limit of 14.7 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2000 MPN/100mL against a permitted limit of 1000 MPN/100mL (30DA GEO)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2000 MPN/100mL against a permitted limit of 2000 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
November 30, 2025
Coliform, fecal general
Limit violation
Discharged 2000 MPN/100mL against a permitted limit of 1000 MPN/100mL (30DA GEO)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2000 MPN/100mL against a permitted limit of 2000 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
October 31, 2025
Coliform, fecal general
Limit violation
Discharged 1655 MPN/100mL against a permitted limit of 1000 MPN/100mL (30DA GEO)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
23% over limit
Discharged 9.2 mg/L against a permitted limit of 7.5 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
78% over limit
Discharged 8.9 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2000 MPN/100mL against a permitted limit of 2000 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
September 30, 2025
Coliform, fecal general
Limit violation
Discharged 2000 MPN/100mL against a permitted limit of 1000 MPN/100mL (30DA GEO)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2000 MPN/100mL against a permitted limit of 2000 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
78% over limit
Discharged 8.9 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
92% over limit
Discharged 14.4 mg/L against a permitted limit of 7.5 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
August 31, 2025
Coliform, fecal general
Limit violation
Discharged 2000 MPN/100mL against a permitted limit of 2000 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
43% over limit
Discharged 10.7 mg/L against a permitted limit of 7.5 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2000 MPN/100mL against a permitted limit of 1000 MPN/100mL (30DA GEO)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
86% over limit
Discharged 9.3 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
10% over limit
Discharged 4.99399996 kg/d against a permitted limit of 4.53999996 kg/d (MO AVG)
DMR, Limited - Numeric Violation
July 31, 2025
Nitrogen, ammonia total [as N]
25% over limit
Discharged 5.67499995 kg/d against a permitted limit of 4.53999996 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
76% over limit
Discharged 8.8 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2000 MPN/100mL against a permitted limit of 2000 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
39% over limit
Discharged 10.4 mg/L against a permitted limit of 7.5 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2000 MPN/100mL against a permitted limit of 1000 MPN/100mL (30DA GEO)
DMR, Limited - Numeric Violation
June 30, 2025
Coliform, fecal general
140% over limit
Discharged 2395 MPN/100mL against a permitted limit of 1000 MPN/100mL (30DA GEO)
DMR, Limited - Numeric Violation
Coliform, fecal general
51% over limit
Discharged 3020 MPN/100mL against a permitted limit of 2000 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
305% over limit
Discharged 18.38699985 kg/d against a permitted limit of 4.53999996 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
207% over limit
Discharged 23 mg/L against a permitted limit of 7.5 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
250% over limit
Discharged 17.5 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2025
Nitrogen, ammonia total [as N]
212% over limit
Discharged 14.16479988 kg/d against a permitted limit of 4.53999996 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2000 MPN/100mL against a permitted limit of 1000 MPN/100mL (30DA GEO)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
323% over limit
Discharged 31.7 mg/L against a permitted limit of 7.5 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2000 MPN/100mL against a permitted limit of 2000 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
382% over limit
Discharged 24.1 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2025
Coliform, fecal general
Limit violation
Discharged 1095 MPN/100mL against a permitted limit of 1000 MPN/100mL (30DA GEO)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
84% over limit
Discharged 9.03459992 kg/d against a permitted limit of 4.90319996 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
79% over limit
Discharged 9.3 mg/L against a permitted limit of 5.2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2000 MPN/100mL against a permitted limit of 2000 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
121% over limit
Discharged 11.5 mg/L against a permitted limit of 5.2 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
March 31, 2025
Coliform, fecal general
Limit violation
Discharged 2000 MPN/100mL against a permitted limit of 2000 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
38% over limit
Discharged 20.3 mg/L against a permitted limit of 14.7 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
52% over limit
Discharged 18.2 mg/L against a permitted limit of 12 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2025
Nitrogen, ammonia total [as N]
90% over limit
Discharged 27.9 mg/L against a permitted limit of 14.7 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2000 MPN/100mL against a permitted limit of 2000 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
33% over limit
Discharged 15.9 mg/L against a permitted limit of 12 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2025
Coliform, fecal general
Limit violation
Discharged 2000 MPN/100mL against a permitted limit of 2000 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2000 MPN/100mL against a permitted limit of 1000 MPN/100mL (30DA GEO)
DMR, Limited - Numeric Violation
December 31, 2024
Nitrogen, ammonia total [as N]
95% over limit
Discharged 28.6 mg/L against a permitted limit of 14.7 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2000 MPN/100mL against a permitted limit of 2000 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
78% over limit
Discharged 21.4 mg/L against a permitted limit of 12 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 1761 MPN/100mL against a permitted limit of 1000 MPN/100mL (30DA GEO)
DMR, Limited - Numeric Violation
November 30, 2024
Coliform, fecal general
Limit violation
Discharged 2000 MPN/100mL against a permitted limit of 2000 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
84% over limit
Discharged 22.1 mg/L against a permitted limit of 12 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
54% over limit
Discharged 22.7 mg/L against a permitted limit of 14.7 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
October 31, 2024
Nitrogen, ammonia total [as N]
320% over limit
Discharged 31.5 mg/L against a permitted limit of 7.5 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
202% over limit
Discharged 13.71079988 kg/d against a permitted limit of 4.53999996 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
474% over limit
Discharged 28.7 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2687 MPN/100mL against a permitted limit of 1000 MPN/100mL (30DA GEO)
DMR, Limited - Numeric Violation
Coliform, fecal general
81% over limit
Discharged 3610 MPN/100mL against a permitted limit of 2000 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
September 30, 2024
Nitrogen, ammonia total [as N]
128% over limit
Discharged 10.35119991 kg/d against a permitted limit of 4.53999996 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
209% over limit
Discharged 23.2 mg/L against a permitted limit of 7.5 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
342% over limit
Discharged 22.1 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2000 MPN/100mL against a permitted limit of 2000 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
August 31, 2024
Nitrogen, ammonia total [as N]
220% over limit
Discharged 16 mg/L against a permitted limit of 5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2000 MPN/100mL against a permitted limit of 1000 MPN/100mL (30DA GEO)
DMR, Limited - Numeric Violation
Coliform, fecal general
Limit violation
Discharged 2000 MPN/100mL against a permitted limit of 2000 MPN/100mL (7 DA GEO)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
83% over limit
Discharged 8.30819993 kg/d against a permitted limit of 4.53999996 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
153% over limit
Discharged 19 mg/L against a permitted limit of 7.5 mg/L (7 DA AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 15, 2026 (8 hours ago)