ROCKFORD WWTP
NPDES ID: AL0062278
S — SNC: Compliance schedule violation
The facility missed a deadline in its compliance schedule by more than 90 days.
This quarter: 4 effluent violations.
Violations
May 31, 2026
E. coli
7589% over limit
Discharged 9688.4 MPN/100mL against a permitted limit of 126 MPN/100mL (MO AVG)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
14% over limit
Discharged 4.29 mg/L against a permitted limit of 5 mg/L (DAILY MN)
DMR, Limited - Numeric Violation
E. coli
16139% over limit
Discharged 48392 MPN/100mL against a permitted limit of 298 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
96% over limit
Discharged 6.48 mg/L against a permitted limit of 3.3 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
January 31, 2026
E. coli
1677% over limit
Discharged 9736.4 MPN/100mL against a permitted limit of 548 MPN/100mL (MO AVG)
DMR, Limited - Numeric Violation
E. coli
1830% over limit
Discharged 48392 MPN/100mL against a permitted limit of 2507 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
December 31, 2025
E. coli
1830% over limit
Discharged 48392 MPN/100mL against a permitted limit of 2507 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
119% over limit
Discharged 13.8 mg/L against a permitted limit of 6.3 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
E. coli
2116% over limit
Discharged 12142.5 MPN/100mL against a permitted limit of 548 MPN/100mL (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
21% over limit
Discharged 54.5 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
31% over limit
Discharged 80.33 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
September 30, 2025
Oxygen, dissolved [DO]
5% over limit
Discharged 4.75 mg/L against a permitted limit of 5 mg/L (DAILY MN)
DMR, Limited - Numeric Violation
August 31, 2025
Nitrogen, ammonia total [as N]
99% over limit
Discharged 0.89437999 kg/d against a permitted limit of 0.44946 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
227% over limit
Discharged 7.2 mg/L against a permitted limit of 2.2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
13% over limit
Discharged 4.36 mg/L against a permitted limit of 5 mg/L (DAILY MN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
761% over limit
Discharged 28.4 mg/L against a permitted limit of 3.3 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
July 31, 2025
BOD, carbonaceous [5 day, 20 C]
4% over limit
Discharged 26.1 mg/L against a permitted limit of 25 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
9510% over limit
Discharged 12108 MPN/100mL against a permitted limit of 126 MPN/100mL (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
414% over limit
Discharged 1.53905999 kg/d against a permitted limit of 0.29964 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1392% over limit
Discharged 32.83 mg/L against a permitted limit of 2.2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
16139% over limit
Discharged 48392 MPN/100mL against a permitted limit of 298 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
22% over limit
Discharged 81.71 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Solids, total suspended
176% over limit
Discharged 124 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
16% over limit
Discharged 7.09147994 kg/d against a permitted limit of 6.12899995 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
456% over limit
Discharged 2.49699998 kg/d against a permitted limit of 0.44946 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
61% over limit
Discharged 48.33 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
60% over limit
Discharged 1.99 mg/L against a permitted limit of 5 mg/L (DAILY MN)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
2% over limit
Discharged 38.4 mg/L against a permitted limit of 37.5 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
1224% over limit
Discharged 43.7 mg/L against a permitted limit of 3.3 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
June 30, 2025
E. coli
992% over limit
Discharged 3255 MPN/100mL against a permitted limit of 298 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
325% over limit
Discharged 9.36 mg/L against a permitted limit of 2.2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
5% over limit
Discharged 0.31553 kg/d against a permitted limit of 0.29964 kg/d (MO AVG)
DMR, Limited - Numeric Violation
E. coli
940% over limit
Discharged 1310.75 MPN/100mL against a permitted limit of 126 MPN/100mL (MO AVG)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
27% over limit
Discharged 3.63 mg/L against a permitted limit of 5 mg/L (DAILY MN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
433% over limit
Discharged 17.6 mg/L against a permitted limit of 3.3 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
52% over limit
Discharged 0.68099999 kg/d against a permitted limit of 0.44946 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
May 31, 2025
Nitrogen, ammonia total [as N]
290% over limit
Discharged 8.58 mg/L against a permitted limit of 2.2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
12% over limit
Discharged 4.38 mg/L against a permitted limit of 5 mg/L (DAILY MN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
715% over limit
Discharged 26.9 mg/L against a permitted limit of 3.3 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
170% over limit
Discharged 0.80811999 kg/d against a permitted limit of 0.29964 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
333% over limit
Discharged 1.94765998 kg/d against a permitted limit of 0.44946 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
April 30, 2025
Nitrogen, ammonia total [as N]
13% over limit
Discharged 0.338684 kg/d against a permitted limit of 0.29964 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
2% over limit
Discharged 4.92 mg/L against a permitted limit of 5 mg/L (DAILY MN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
436% over limit
Discharged 17.7 mg/L against a permitted limit of 3.3 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
224% over limit
Discharged 7.12 mg/L against a permitted limit of 2.2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
57% over limit
Discharged 0.70369999 kg/d against a permitted limit of 0.44946 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
February 28, 2025
Nitrogen, ammonia total [as N]
94% over limit
Discharged 12.2 mg/L against a permitted limit of 6.3 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
December 31, 2024
Nitrogen, ammonia total [as N]
18% over limit
Discharged 4.94 mg/L against a permitted limit of 4.2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
68% over limit
Discharged 10.6 mg/L against a permitted limit of 6.3 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
November 30, 2024
Oxygen, dissolved [DO]
6% over limit
Discharged 4.71 mg/L against a permitted limit of 5 mg/L (DAILY MN)
DMR, Limited - Numeric Violation
E. coli
865% over limit
Discharged 24196 MPN/100mL against a permitted limit of 2507 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
289% over limit
Discharged 3.33689997 kg/d against a permitted limit of 0.85805999 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
124% over limit
Discharged 9.4 mg/L against a permitted limit of 4.2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
273% over limit
Discharged 23.5 mg/L against a permitted limit of 6.3 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
E. coli
851% over limit
Discharged 5212.2 MPN/100mL against a permitted limit of 548 MPN/100mL (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
38% over limit
Discharged 0.78678199 kg/d against a permitted limit of 0.57204 kg/d (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2024
Nitrogen, ammonia total [as N]
564% over limit
Discharged 21.9 mg/L against a permitted limit of 3.3 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
278% over limit
Discharged 1.69795999 kg/d against a permitted limit of 0.44946 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
E. coli
8019% over limit
Discharged 24196 MPN/100mL against a permitted limit of 298 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
15% over limit
Discharged 4.25 mg/L against a permitted limit of 5 mg/L (DAILY MN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
765% over limit
Discharged 19.03 mg/L against a permitted limit of 2.2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
4745% over limit
Discharged 6105.25 MPN/100mL against a permitted limit of 126 MPN/100mL (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
350% over limit
Discharged 1.34928799 kg/d against a permitted limit of 0.29964 kg/d (MO AVG)
DMR, Limited - Numeric Violation
September 30, 2024
E. coli
1733% over limit
Discharged 2309.5 MPN/100mL against a permitted limit of 126 MPN/100mL (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
87% over limit
Discharged 0.83989999 kg/d against a permitted limit of 0.44946 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
189% over limit
Discharged 6.35 mg/L against a permitted limit of 2.2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
2990% over limit
Discharged 9208 MPN/100mL against a permitted limit of 298 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
125% over limit
Discharged 7.43 mg/L against a permitted limit of 3.3 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
33% over limit
Discharged 0.399974 kg/d against a permitted limit of 0.29964 kg/d (MO AVG)
DMR, Limited - Numeric Violation
August 31, 2024
Oxygen, dissolved [DO]
6% over limit
Discharged 4.68 mg/L against a permitted limit of 5 mg/L (DAILY MN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
391% over limit
Discharged 16.2 mg/L against a permitted limit of 3.3 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
241% over limit
Discharged 7.5 mg/L against a permitted limit of 2.2 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
105% over limit
Discharged 0.92161999 kg/d against a permitted limit of 0.44946 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
32% over limit
Discharged 0.394072 kg/d against a permitted limit of 0.29964 kg/d (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
August 1, 2026 (5 days ago)