SOUTHWOOD ESTATES WWTP
NPDES ID: TX0093823
E — SNC: Effluent violation (monthly average limit)
The facility discharged more of a pollutant than its permit allows, based on a monthly average.
Violations
March 31, 2026
E. coli, colony forming units [CFU]
63% over limit
Discharged 649 MPN/100mL against a permitted limit of 399 MPN/100mL (SINGGRAB)
DMR, Limited - Numeric Violation
Solids, total suspended
3% over limit
Discharged 15.38 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
February 28, 2026
Nitrogen, ammonia total [as N]
42% over limit
Discharged 21.3 mg/L against a permitted limit of 15 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
January 31, 2026
Solids, total suspended
52% over limit
Discharged 22.75 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
E. coli, colony forming units [CFU]
5965% over limit
Discharged 24200 MPN/100mL against a permitted limit of 399 MPN/100mL (SINGGRAB)
DMR, Limited - Numeric Violation
Solids, total suspended
0% over limit
Discharged 39.3 mg/L against a permitted limit of 60 mg/L (SINGGRAB)
DMR, Limited - Overdue
November 30, 2025
Solids, total suspended
63% over limit
Discharged 98 mg/L against a permitted limit of 60 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
Solids, total suspended
123% over limit
Discharged 33.38 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
October 31, 2025
Nitrogen, ammonia total [as N]
11% over limit
Discharged 3.32 mg/L against a permitted limit of 3 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
6% over limit
Discharged 15.9 mg/L against a permitted limit of 15 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
September 30, 2025
E. coli, colony forming units [CFU]
507% over limit
Discharged 2420 MPN/100mL against a permitted limit of 399 MPN/100mL (SINGGRAB)
DMR, Limited - Numeric Violation
August 31, 2025
E. coli, colony forming units [CFU]
5% over limit
Discharged 420 MPN/100mL against a permitted limit of 399 MPN/100mL (SINGGRAB)
DMR, Limited - Numeric Violation
July 31, 2025
E. coli, colony forming units [CFU]
765% over limit
Discharged 3450 MPN/100mL against a permitted limit of 399 MPN/100mL (SINGGRAB)
DMR, Limited - Numeric Violation
April 30, 2025
E. coli, colony forming units [CFU]
1830% over limit
Discharged 7700 MPN/100mL against a permitted limit of 399 MPN/100mL (SINGGRAB)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
July 13, 2026 (23 days ago)