SI ENTERPRISES WWTP
NPDES ID: TX0134872
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: 2 effluent violations.
Violations
February 28, 2026
Nitrogen, ammonia total [as N]
120% over limit
Discharged 0.04994 kg/d against a permitted limit of 0.0227 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
Enterococci
6813% over limit
Discharged 2419.6 MPN/100mL against a permitted limit of 35 MPN/100mL (DAILY AV)
DMR, Limited - Numeric Violation
Enterococci
2227% over limit
Discharged 2419.6 MPN/100mL against a permitted limit of 104 MPN/100mL (SINGGRAB)
DMR, Limited - Numeric Violation
Flow, in conduit or thru treatment plant
14% over limit
Discharged 0.00228 MGD against a permitted limit of 0.002 MGD (DAILY AV)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
249% over limit
Discharged 0.269222 kg/d against a permitted limit of 0.07718 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
Solids, total suspended
556% over limit
Discharged 0.74501399 kg/d against a permitted limit of 0.1135 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
January 31, 2026
BOD, carbonaceous [5 day, 20 C]
449% over limit
Discharged 0.424036 kg/d against a permitted limit of 0.07718 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
Solids, total suspended
677% over limit
Discharged 0.88212199 kg/d against a permitted limit of 0.1135 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
December 31, 2025
Nitrogen, ammonia total [as N]
22% over limit
Discharged 0.027694 kg/d against a permitted limit of 0.0227 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
Solids, total suspended
410% over limit
Discharged 0.579304 kg/d against a permitted limit of 0.1135 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
340% over limit
Discharged 0.339592 kg/d against a permitted limit of 0.07718 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
November 30, 2025
Enterococci
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 35 MPN/100mL (DAILY AV)
DMR, Limited - Numeric Violation
Solids, total suspended
316% over limit
Discharged 0.471706 kg/d against a permitted limit of 0.1135 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
126% over limit
Discharged 0.174563 kg/d against a permitted limit of 0.07718 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
Enterococci
Limit violation
Discharged 2419.6 MPN/100mL against a permitted limit of 104 MPN/100mL (SINGGRAB)
DMR, Limited - Numeric Violation
October 31, 2025
Solids, total suspended
523% over limit
Discharged 0.70669639 kg/d against a permitted limit of 0.1135 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
154% over limit
Discharged 0.196128 kg/d against a permitted limit of 0.07718 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
128% over limit
Discharged 0.051756 kg/d against a permitted limit of 0.0227 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
September 30, 2025
BOD, carbonaceous [5 day, 20 C]
21% over limit
Discharged 0.09307 kg/d against a permitted limit of 0.07718 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
Solids, total suspended
210% over limit
Discharged 0.35185 kg/d against a permitted limit of 0.1135 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
August 31, 2025
Solids, total suspended
26% over limit
Discharged 0.14301 kg/d against a permitted limit of 0.1135 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
July 31, 2025
Solids, total suspended
54% over limit
Discharged 23.1 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Solids, total suspended
28% over limit
Discharged 76.6 mg/L against a permitted limit of 60 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
June 30, 2025
BOD, carbonaceous [5 day, 20 C]
14% over limit
Discharged 40 mg/L against a permitted limit of 35 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
60% over limit
Discharged 16 mg/L against a permitted limit of 10 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
April 30, 2025
Solids, total suspended
20% over limit
Discharged 0.1362 kg/d against a permitted limit of 0.1135 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
December 31, 2024
Solids, total suspended
60% over limit
Discharged 0.1816 kg/d against a permitted limit of 0.1135 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
Flow, in conduit or thru treatment plant
85% over limit
Discharged 0.0037 MGD against a permitted limit of 0.002 MGD (DAILY AV)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
18% over limit
Discharged 0.0908 kg/d against a permitted limit of 0.07718 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
November 30, 2024
Flow, in conduit or thru treatment plant
330% over limit
Discharged 0.0086 MGD against a permitted limit of 0.002 MGD (DAILY AV)
DMR, Limited - Numeric Violation
September 30, 2024
Solids, total suspended
2% over limit
Discharged 15.3 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
First flagged
April 14, 2026 (3 months ago)
Last confirmed
August 1, 2026 (4 days ago)