ROCHELLE, CITY OF (NORTHWEST WPCP)
NPDES ID: GA0024244
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: 13 effluent violations.
Violations
June 30, 2026
BOD, 5-day, 20 deg. C
4% over limit
Discharged 28 mg/L against a permitted limit of 27 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
53% over limit
Discharged 2.8 mg/L against a permitted limit of 6 mg/L (MINIMUM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
133% over limit
Discharged 1.4 mg/L against a permitted limit of 0.6 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
175% over limit
Discharged 58.69 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
38% over limit
Discharged 79.34 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
111% over limit
Discharged 1.9 mg/L against a permitted limit of 0.9 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
5% over limit
Discharged 18.89 mg/L against a permitted limit of 18 mg/L (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2026
Solids, total suspended
55% over limit
Discharged 46.63 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
29% over limit
Discharged 58 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
202% over limit
Discharged 54.73 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
April 30, 2026
Solids, total suspended
17% over limit
Discharged 52.5 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
183% over limit
Discharged 57.53 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Solids, total suspended
27% over limit
Discharged 38.22 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
March 31, 2026
Nitrogen, ammonia total [as N]
117% over limit
Discharged 1.95 mg/L against a permitted limit of 0.9 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
5% over limit
Discharged 31.56 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
78% over limit
Discharged 1.07 mg/L against a permitted limit of 0.6 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
157% over limit
Discharged 61.41 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
15% over limit
Discharged 31 mg/L against a permitted limit of 27 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
February 28, 2026
Nitrogen, ammonia total [as N]
213% over limit
Discharged 1.88 mg/L against a permitted limit of 0.6 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
24% over limit
Discharged 37.13 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
8% over limit
Discharged 48.5 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
2% over limit
Discharged 18.35 mg/L against a permitted limit of 18 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
6% over limit
Discharged 28.5 mg/L against a permitted limit of 27 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
184% over limit
Discharged 57.45 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
261% over limit
Discharged 3.25 mg/L against a permitted limit of 0.9 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
January 31, 2026
Solids, suspended percent removal
133% over limit
Discharged 65.12 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
213% over limit
Discharged 1.88 mg/L against a permitted limit of 0.6 mg/L (MO AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 8.3 SU against a permitted limit of 8 SU (MAXIMUM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
161% over limit
Discharged 2.35 mg/L against a permitted limit of 0.9 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
December 31, 2025
Nitrogen, ammonia total [as N]
306% over limit
Discharged 3.65 mg/L against a permitted limit of 0.9 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
170% over limit
Discharged 59.43 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
20% over limit
Discharged 82.07 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
285% over limit
Discharged 2.31 mg/L against a permitted limit of 0.6 mg/L (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2025
Nitrogen, ammonia total [as N]
122% over limit
Discharged 2 mg/L against a permitted limit of 0.9 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
20% over limit
Discharged 21.59 mg/L against a permitted limit of 18 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
37% over limit
Discharged 0.82 mg/L against a permitted limit of 0.6 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
43% over limit
Discharged 78.55 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
153% over limit
Discharged 62.03 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 10.3 SU against a permitted limit of 8 SU (MAXIMUM)
DMR, Limited - Numeric Violation
Solids, total suspended
10% over limit
Discharged 49.5 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
7% over limit
Discharged 29 mg/L against a permitted limit of 27 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
25% over limit
Discharged 37.5 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2025
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
Solids, suspended percent removal
179% over limit
Discharged 58.17 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
8% over limit
Discharged 5.55 mg/L against a permitted limit of 6 mg/L (MINIMUM)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 8.7 SU against a permitted limit of 8 SU (MAXIMUM)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
11% over limit
Discharged 30 mg/L against a permitted limit of 27 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
10% over limit
Discharged 19.82 mg/L against a permitted limit of 18 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
32% over limit
Discharged 59.5 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
19% over limit
Discharged 82.2 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
September 30, 2025
pH
0% over limit
Discharged 9.1 SU against a permitted limit of 8 SU (MAXIMUM)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
57% over limit
Discharged 76.5 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Solids, total suspended
20% over limit
Discharged 36 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
249% over limit
Discharged 47.66 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
7% over limit
Discharged 19.24 mg/L against a permitted limit of 18 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
59% over limit
Discharged 2.48 mg/L against a permitted limit of 6 mg/L (MINIMUM)
DMR, Limited - Numeric Violation
August 31, 2025
Solids, suspended percent removal
207% over limit
Discharged 53.98 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
43% over limit
Discharged 3.45 mg/L against a permitted limit of 6 mg/L (MINIMUM)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 10.8 SU against a permitted limit of 8 SU (MAXIMUM)
DMR, Limited - Numeric Violation
July 31, 2025
Oxygen, dissolved [DO]
16% over limit
Discharged 5.02 mg/L against a permitted limit of 6 mg/L (MINIMUM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
18% over limit
Discharged 1.18 kg/d against a permitted limit of 1 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
162% over limit
Discharged 60.75 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
88% over limit
Discharged 1.69 mg/L against a permitted limit of 0.9 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 10.8 SU against a permitted limit of 8 SU (MAXIMUM)
DMR, Limited - Numeric Violation
Solids, total suspended
16% over limit
Discharged 34.89 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
47% over limit
Discharged 0.88 mg/L against a permitted limit of 0.6 mg/L (MO AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Solids, suspended percent removal
148% over limit
Discharged 62.78 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Solids, total suspended
24% over limit
Discharged 37.22 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
6% over limit
Discharged 47.5 mg/L against a permitted limit of 45 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 10.4 SU against a permitted limit of 8 SU (MAXIMUM)
DMR, Limited - Numeric Violation
May 31, 2025
Oxygen, dissolved [DO]
21% over limit
Discharged 4.75 mg/L against a permitted limit of 6 mg/L (MINIMUM)
DMR, Limited - Numeric Violation
Solids, total suspended
4% over limit
Discharged 31.13 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 10.2 SU against a permitted limit of 8 SU (MAXIMUM)
DMR, Limited - Numeric Violation
April 30, 2025
pH
0% over limit
Discharged 10.8 SU against a permitted limit of 8 SU (MAXIMUM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
13% over limit
Discharged 0.68 mg/L against a permitted limit of 0.6 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
72% over limit
Discharged 74.27 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
7% over limit
Discharged 5.6 mg/L against a permitted limit of 6 mg/L (MINIMUM)
DMR, Limited - Numeric Violation
March 31, 2025
Nitrogen, ammonia total [as N]
269% over limit
Discharged 3.69 kg/d against a permitted limit of 1 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 10.2 SU against a permitted limit of 8 SU (MAXIMUM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
367% over limit
Discharged 4.2 mg/L against a permitted limit of 0.9 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
35% over limit
Discharged 3.9 mg/L against a permitted limit of 6 mg/L (MINIMUM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
435% over limit
Discharged 3.21 mg/L against a permitted limit of 0.6 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
241% over limit
Discharged 2.73 kg/d against a permitted limit of 0.8 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
4% over limit
Discharged 84.38 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
February 28, 2025
Solids, suspended percent removal
46% over limit
Discharged 78.16 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
30% over limit
Discharged 4.19 mg/L against a permitted limit of 6 mg/L (MINIMUM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
406% over limit
Discharged 4.55 mg/L against a permitted limit of 0.9 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
555% over limit
Discharged 3.93 mg/L against a permitted limit of 0.6 mg/L (MO AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 9.1 SU against a permitted limit of 8 SU (MAXIMUM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
231% over limit
Discharged 3.31 kg/d against a permitted limit of 1 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
264% over limit
Discharged 2.91 kg/d against a permitted limit of 0.8 kg/d (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2025
Oxygen, dissolved [DO]
13% over limit
Discharged 5.2 mg/L against a permitted limit of 6 mg/L (MINIMUM)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
170% over limit
Discharged 59.44 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
572% over limit
Discharged 6.05 mg/L against a permitted limit of 0.9 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
150% over limit
Discharged 2 kg/d against a permitted limit of 0.8 kg/d (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
155% over limit
Discharged 2.55 kg/d against a permitted limit of 1 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 9.4 SU against a permitted limit of 8 SU (MAXIMUM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
688% over limit
Discharged 4.73 mg/L against a permitted limit of 0.6 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2024
Oxygen, dissolved [DO]
33% over limit
Discharged 4 mg/L against a permitted limit of 6 mg/L (MINIMUM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
182% over limit
Discharged 2.54 mg/L against a permitted limit of 0.9 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 8.5 SU against a permitted limit of 8 SU (MAXIMUM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
208% over limit
Discharged 1.85 mg/L against a permitted limit of 0.6 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
15% over limit
Discharged 1.15 kg/d against a permitted limit of 1 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
56% over limit
Discharged 76.53 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
November 30, 2024
Nitrogen, ammonia total [as N]
100% over limit
Discharged 1.8 mg/L against a permitted limit of 0.9 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
56% over limit
Discharged 76.59 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
67% over limit
Discharged 2 mg/L against a permitted limit of 6 mg/L (MINIMUM)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 8.2 SU against a permitted limit of 8 SU (MAXIMUM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
107% over limit
Discharged 1.24 mg/L against a permitted limit of 0.6 mg/L (MO AVG)
DMR, Limited - Numeric Violation
October 31, 2024
Solids, suspended percent removal
55% over limit
Discharged 76.82 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
45% over limit
Discharged 3.29 mg/L against a permitted limit of 6 mg/L (MINIMUM)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 8.7 SU against a permitted limit of 8 SU (MAXIMUM)
DMR, Limited - Numeric Violation
September 30, 2024
Oxygen, dissolved [DO]
57% over limit
Discharged 2.58 mg/L against a permitted limit of 6 mg/L (MINIMUM)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 9.2 SU against a permitted limit of 8 SU (MAXIMUM)
DMR, Limited - Numeric Violation
August 31, 2024
pH
0% over limit
Discharged 8.7 SU against a permitted limit of 8 SU (MAXIMUM)
DMR, Limited - Numeric Violation
Solids, total suspended
9% over limit
Discharged 32.75 mg/L against a permitted limit of 30 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
92% over limit
Discharged 71.21 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Coliform, fecal general
8% over limit
Discharged 430 MPN/100mL against a permitted limit of 400 MPN/100mL (WKAV GEO)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
57% over limit
Discharged 2.56 mg/L against a permitted limit of 6 mg/L (MINIMUM)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (4 months ago)
Last confirmed
August 16, 2026 (8 hours ago)