MOSSES WASTEWATER TREATMENT FACILITY
NPDES ID: AL0055883
S — SNC: Compliance schedule violation
The facility missed a deadline in its compliance schedule by more than 90 days.
This quarter: 6 effluent violations.
Violations
May 31, 2026
Nitrogen, ammonia total [as N]
29% over limit
Discharged 0.9 mg/L against a permitted limit of 0.7 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
E. coli
303% over limit
Discharged 1200 MPN/100mL against a permitted limit of 298 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
40% over limit
Discharged 0.7 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
April 30, 2026
Nitrogen, ammonia total [as N]
243% over limit
Discharged 2.4 mg/L against a permitted limit of 0.7 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
140% over limit
Discharged 1.2 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
12% over limit
Discharged 5.3 mg/L against a permitted limit of 6 mg/L (DAILY MN)
DMR, Limited - Numeric Violation
March 31, 2026
BOD, carbonaceous [5 day, 20 C]
10% over limit
Discharged 6.6 mg/L against a permitted limit of 6 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
40% over limit
Discharged 0.7 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
139% over limit
Discharged 6000 MPN/100mL against a permitted limit of 2507 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
43% over limit
Discharged 1 mg/L against a permitted limit of 0.7 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
February 28, 2026
Nitrogen, ammonia total [as N]
257% over limit
Discharged 2.5 mg/L against a permitted limit of 0.7 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
160% over limit
Discharged 1.3 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
January 31, 2026
Nitrogen, ammonia total [as N]
357% over limit
Discharged 3.2 mg/L against a permitted limit of 0.7 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
40% over limit
Discharged 0.44492 kg/d against a permitted limit of 0.3178 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
E. coli
52% over limit
Discharged 3800 MPN/100mL against a permitted limit of 2507 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
180% over limit
Discharged 1.4 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2025
Nitrogen, ammonia total [as N]
6% over limit
Discharged 0.33596 kg/d against a permitted limit of 0.3178 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
242% over limit
Discharged 1.71 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
357% over limit
Discharged 3.2 mg/L against a permitted limit of 0.7 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
November 30, 2025
Nitrogen, ammonia total [as N]
260% over limit
Discharged 1.8 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
96% over limit
Discharged 0.62197999 kg/d against a permitted limit of 0.3178 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
614% over limit
Discharged 5 mg/L against a permitted limit of 0.7 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
October 31, 2025
E. coli
135% over limit
Discharged 700 MPN/100mL against a permitted limit of 298 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
September 30, 2025
Nitrogen, ammonia total [as N]
14% over limit
Discharged 0.8 mg/L against a permitted limit of 0.7 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
121% over limit
Discharged 66.9 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
E. coli
638% over limit
Discharged 2200 MPN/100mL against a permitted limit of 298 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
August 31, 2025
Solids, suspended percent removal
65% over limit
Discharged 75.2 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
100% over limit
Discharged 1.4 mg/L against a permitted limit of 0.7 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
E. coli
88% over limit
Discharged 560 MPN/100mL against a permitted limit of 298 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
100% over limit
Discharged 1 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
July 31, 2025
Nitrogen, ammonia total [as N]
380% over limit
Discharged 2.4 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
52% over limit
Discharged 9.1 mg/L against a permitted limit of 6 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
586% over limit
Discharged 4.8 mg/L against a permitted limit of 0.7 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
43% over limit
Discharged 0.454 kg/d against a permitted limit of 0.3178 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Nitrogen, ammonia total [as N]
129% over limit
Discharged 1.6 mg/L against a permitted limit of 0.7 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
120% over limit
Discharged 1.1 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
E. coli
370% over limit
Discharged 1400 MPN/100mL against a permitted limit of 298 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
May 31, 2025
Solids, suspended percent removal
13% over limit
Discharged 83 % against a permitted limit of 85 % (MO AV MN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
100% over limit
Discharged 1 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
86% over limit
Discharged 1.3 mg/L against a permitted limit of 0.7 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
E. coli
4262% over limit
Discharged 13000 MPN/100mL against a permitted limit of 298 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
April 30, 2025
Nitrogen, ammonia total [as N]
80% over limit
Discharged 0.9 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
114% over limit
Discharged 1.5 mg/L against a permitted limit of 0.7 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
March 31, 2025
Nitrogen, ammonia total [as N]
186% over limit
Discharged 2 mg/L against a permitted limit of 0.7 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
180% over limit
Discharged 1.4 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2025
Nitrogen, ammonia total [as N]
443% over limit
Discharged 3.8 mg/L against a permitted limit of 0.7 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
400% over limit
Discharged 2.5 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
42% over limit
Discharged 8.5 mg/L against a permitted limit of 6 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
E. coli
139% over limit
Discharged 6000 MPN/100mL against a permitted limit of 2507 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
January 31, 2025
Nitrogen, ammonia total [as N]
1114% over limit
Discharged 8.5 mg/L against a permitted limit of 0.7 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
620% over limit
Discharged 3.6 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2024
Nitrogen, ammonia total [as N]
157% over limit
Discharged 1.8 mg/L against a permitted limit of 0.7 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
80% over limit
Discharged 0.9 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2024
Nitrogen, ammonia total [as N]
120% over limit
Discharged 1.1 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
271% over limit
Discharged 2.6 mg/L against a permitted limit of 0.7 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
October 31, 2024
E. coli
168% over limit
Discharged 800 MPN/100mL against a permitted limit of 298 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
71% over limit
Discharged 1.2 mg/L against a permitted limit of 0.7 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
pH
0% over limit
Discharged 8.8 SU against a permitted limit of 8.5 SU (DAILY MX)
DMR, Limited - Numeric Violation
August 31, 2024
E. coli
202% over limit
Discharged 900 MPN/100mL against a permitted limit of 298 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
143% over limit
Discharged 1.7 mg/L against a permitted limit of 0.7 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
July 31, 2024
E. coli
236% over limit
Discharged 1000 MPN/100mL against a permitted limit of 298 MPN/100mL (DAILY MX)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
13% over limit
Discharged 5.2 mg/L against a permitted limit of 6 mg/L (DAILY MN)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
214% over limit
Discharged 2.2 mg/L against a permitted limit of 0.7 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
40% over limit
Discharged 0.7 mg/L against a permitted limit of 0.5 mg/L (MO AVG)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (24 days ago)