HAMSHIRE WWTP
NPDES ID: TX0116441
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: 1 effluent violation.
Violations
April 30, 2026
Oxygen, dissolved [DO]
10% over limit
Discharged 3.6 mg/L against a permitted limit of 4 mg/L (MO MIN)
DMR, Limited - Numeric Violation
March 31, 2026
E. coli
72% over limit
Discharged 217 MPN/100mL against a permitted limit of 126 MPN/100mL (DAILY AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
4% over limit
Discharged 8.3 mg/L against a permitted limit of 8 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
February 28, 2026
Nitrogen, ammonia total [as N]
4% over limit
Discharged 8.3 mg/L against a permitted limit of 8 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
E. coli
117% over limit
Discharged 866 MPN/100mL against a permitted limit of 399 MPN/100mL (SINGGRAB)
DMR, Limited - Numeric Violation
E. coli
252% over limit
Discharged 443 MPN/100mL against a permitted limit of 126 MPN/100mL (DAILY AV)
DMR, Limited - Numeric Violation
January 31, 2026
Nitrogen, ammonia total [as N]
51% over limit
Discharged 12.1 mg/L against a permitted limit of 8 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
E. coli
13% over limit
Discharged 143 MPN/100mL against a permitted limit of 126 MPN/100mL (DAILY AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
3% over limit
Discharged 15.5 mg/L against a permitted limit of 15 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
December 31, 2025
E. coli
507% over limit
Discharged 2420 MPN/100mL against a permitted limit of 399 MPN/100mL (SINGGRAB)
DMR, Limited - Numeric Violation
E. coli
29% over limit
Discharged 163 MPN/100mL against a permitted limit of 126 MPN/100mL (DAILY AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
28% over limit
Discharged 10.2 mg/L against a permitted limit of 8 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
November 30, 2025
Nitrogen, ammonia total [as N]
15% over limit
Discharged 17.2 mg/L against a permitted limit of 15 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
98% over limit
Discharged 15.8 mg/L against a permitted limit of 8 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
October 31, 2025
Nitrogen, ammonia total [as N]
43% over limit
Discharged 11.4 mg/L against a permitted limit of 8 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
7% over limit
Discharged 16 mg/L against a permitted limit of 15 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
65% over limit
Discharged 1.4 mg/L against a permitted limit of 4 mg/L (MO MIN)
DMR, Limited - Numeric Violation
September 30, 2025
Oxygen, dissolved [DO]
68% over limit
Discharged 1.3 mg/L against a permitted limit of 4 mg/L (MO MIN)
DMR, Limited - Numeric Violation
E. coli
2% over limit
Discharged 129 MPN/100mL against a permitted limit of 126 MPN/100mL (DAILY AV)
DMR, Limited - Numeric Violation
July 31, 2025
E. coli
33% over limit
Discharged 167 MPN/100mL against a permitted limit of 126 MPN/100mL (DAILY AV)
DMR, Limited - Numeric Violation
June 30, 2025
Flow, in conduit or thru treatment plant
7% over limit
Discharged 0.06 MGD against a permitted limit of 0.056 MGD (DAILY AV)
DMR, Limited - Numeric Violation
March 31, 2025
E. coli
10% over limit
Discharged 138 MPN/100mL against a permitted limit of 126 MPN/100mL (DAILY AV)
DMR, Limited - Numeric Violation
February 28, 2025
E. coli
1% over limit
Discharged 127 MPN/100mL against a permitted limit of 126 MPN/100mL (DAILY AV)
DMR, Limited - Numeric Violation
E. coli
45% over limit
Discharged 579 MPN/100mL against a permitted limit of 399 MPN/100mL (SINGGRAB)
DMR, Limited - Numeric Violation
January 31, 2025
E. coli
30% over limit
Discharged 163.8 MPN/100mL against a permitted limit of 126 MPN/100mL (DAILY AV)
DMR, Limited - Numeric Violation
December 31, 2024
E. coli
67% over limit
Discharged 210 MPN/100mL against a permitted limit of 126 MPN/100mL (DAILY AV)
DMR, Limited - Numeric Violation
November 30, 2024
E. coli
226% over limit
Discharged 411 MPN/100mL against a permitted limit of 126 MPN/100mL (DAILY AV)
DMR, Limited - Numeric Violation
E. coli
3% over limit
Discharged 411 MPN/100mL against a permitted limit of 399 MPN/100mL (SINGGRAB)
DMR, Limited - Numeric Violation
September 30, 2024
E. coli
1821% over limit
Discharged 2420 MPN/100mL against a permitted limit of 126 MPN/100mL (DAILY AV)
DMR, Limited - Numeric Violation
E. coli
507% over limit
Discharged 2420 MPN/100mL against a permitted limit of 399 MPN/100mL (SINGGRAB)
DMR, Limited - Numeric Violation
August 31, 2024
E. coli
3% over limit
Discharged 130 MPN/100mL against a permitted limit of 126 MPN/100mL (DAILY AV)
DMR, Limited - Numeric Violation
Oxygen, dissolved [DO]
15% over limit
Discharged 3.4 mg/L against a permitted limit of 4 mg/L (MO MIN)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (24 days ago)