DAWSON, CITY OF (DAWSON WPCP)
NPDES ID: GA0021326
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: 16 effluent violations.
Violations
May 31, 2026
BOD, 5-day, 20 deg. C
133% over limit
Discharged 35 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
164% over limit
Discharged 26.4 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
12% over limit
Discharged 265.8 kg/d against a permitted limit of 237 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
260% over limit
Discharged 46 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Coliform, fecal general
500% over limit
Discharged 2400 MPN/100mL against a permitted limit of 400 MPN/100mL (WKAV GEO)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
16% over limit
Discharged 136.8 kg/d against a permitted limit of 118 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
165% over limit
Discharged 52.9 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
1113% over limit
Discharged -82 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Solids, total suspended
127% over limit
Discharged 68 mg/L against a permitted limit of 30 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Coliform, fecal general
60% over limit
Discharged 319 MPN/100mL against a permitted limit of 200 MPN/100mL (MOAV GEO)
DMR, Limited - Numeric Violation
April 30, 2026
BOD, 5-day, 20 deg. C
51% over limit
Discharged 22.7 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
53% over limit
Discharged 30.6 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
507% over limit
Discharged 9 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Solids, total suspended
30% over limit
Discharged 39 mg/L against a permitted limit of 30 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, percent removal
107% over limit
Discharged 69 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
88% over limit
Discharged 18.8 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
February 28, 2026
Solids, suspended percent removal
33% over limit
Discharged 80 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
November 30, 2025
Nitrogen, ammonia total [as N]
31% over limit
Discharged 1.18 mg/L against a permitted limit of 0.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
35% over limit
Discharged 1.82 mg/L against a permitted limit of 1.35 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
69% over limit
Discharged 33.7 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
107% over limit
Discharged 62 mg/L against a permitted limit of 30 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Chlorine, total residual
2900% over limit
Discharged 0.3 mg/L against a permitted limit of 0.01 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
October 31, 2025
Solids, total suspended
10% over limit
Discharged 33 mg/L against a permitted limit of 30 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
154% over limit
Discharged 3.43 mg/L against a permitted limit of 1.35 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
September 30, 2025
BOD, 5-day, 20 deg. C
47% over limit
Discharged 22 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
15% over limit
Discharged 5.1 mg/L against a permitted limit of 6 mg/L (MINIMUM)
DMR, Limited - Numeric Violation
August 31, 2025
BOD, 5-day, 20 deg. C
27% over limit
Discharged 12.7 mg/L against a permitted limit of 10 mg/L (MO AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
22% over limit
Discharged 18.3 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
10% over limit
Discharged 129.8 kg/d against a permitted limit of 118 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
27% over limit
Discharged 25.4 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Numeric Violation
June 30, 2025
Solids, total suspended
26% over limit
Discharged 37.7 mg/L against a permitted limit of 30 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
BOD, 5-day, 20 deg. C
23% over limit
Discharged 18.4 mg/L against a permitted limit of 15 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
15% over limit
Discharged 23 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Numeric Violation
May 31, 2025
Solids, total suspended
98% over limit
Discharged 59.3 mg/L against a permitted limit of 30 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
75% over limit
Discharged 414.5 kg/d against a permitted limit of 237 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
January 31, 2025
Solids, total suspended
25% over limit
Discharged 25 mg/L against a permitted limit of 20 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
7% over limit
Discharged 84 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
218% over limit
Discharged 2.864 mg/L against a permitted limit of 0.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
73% over limit
Discharged 18.5 kg/d against a permitted limit of 10.68 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
204% over limit
Discharged 4.1 mg/L against a permitted limit of 1.35 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, total suspended
1% over limit
Discharged 30.3 mg/L against a permitted limit of 30 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
34% over limit
Discharged 11.42 kg/d against a permitted limit of 8.53 kg/d (MO AVG)
DMR, Limited - Numeric Violation
December 31, 2024
Coliform, fecal general
27% over limit
Discharged 507 MPN/100mL against a permitted limit of 400 MPN/100mL (WKAV GEO)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
144% over limit
Discharged 3.3 mg/L against a permitted limit of 1.35 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
194% over limit
Discharged 2.65 mg/L against a permitted limit of 0.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
13% over limit
Discharged 83 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
Chlorine, total residual
70% over limit
Discharged 0.017 mg/L against a permitted limit of 0.01 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
37% over limit
Discharged 14.6 kg/d against a permitted limit of 10.68 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
18% over limit
Discharged 10.1 kg/d against a permitted limit of 8.53 kg/d (MO AVG)
DMR, Limited - Numeric Violation
November 30, 2024
Nitrogen, ammonia total [as N]
88% over limit
Discharged 1.691 mg/L against a permitted limit of 0.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
88% over limit
Discharged 2.533 mg/L against a permitted limit of 1.35 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
October 31, 2024
Nitrogen, ammonia total [as N]
5% over limit
Discharged 0.949 mg/L against a permitted limit of 0.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
21% over limit
Discharged 1.63 mg/L against a permitted limit of 1.35 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Solids, suspended percent removal
53% over limit
Discharged 77 % against a permitted limit of 85 % (MINIMUM)
DMR, Limited - Numeric Violation
September 30, 2024
Nitrogen, ammonia total [as N]
28% over limit
Discharged 1.15 mg/L against a permitted limit of 0.9 mg/L (MO AVG)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
2% over limit
Discharged 5.9 mg/L against a permitted limit of 6 mg/L (MINIMUM)
DMR, Limited - Numeric Violation
Chlorine, total residual
6900% over limit
Discharged 0.7 mg/L against a permitted limit of 0.01 mg/L (DAILY MX)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
44% over limit
Discharged 1.95 mg/L against a permitted limit of 1.35 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
41% over limit
Discharged 15.1 kg/d against a permitted limit of 10.68 kg/d (WKLY AVG)
DMR, Limited - Numeric Violation
August 31, 2024
Solids, total suspended
17% over limit
Discharged 35 mg/L against a permitted limit of 30 mg/L (WKLY AVG)
DMR, Limited - Numeric Violation
July 31, 2024
Oxygen, dissolved [DO]
2% over limit
Discharged 5.9 mg/L against a permitted limit of 6 mg/L (MINIMUM)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (24 days ago)