WALLER COUNTY ROAD IMPROVEMENT DISTRICT 1 WWTF
NPDES ID: TX0127264
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
May 31, 2026
E. coli
30% over limit
Discharged 260 MPN/100mL against a permitted limit of 200 MPN/100mL (SINGGRAB)
DMR, Limited - Numeric Violation
E. coli
313% over limit
Discharged 260 MPN/100mL against a permitted limit of 63 MPN/100mL (DAILY AV)
DMR, Limited - Numeric Violation
February 28, 2026
BOD, carbonaceous [5 day, 20 C]
24% over limit
Discharged 6.18 mg/L against a permitted limit of 5 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Solids, total suspended
91% over limit
Discharged 28.7 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
January 31, 2026
Solids, total suspended
16% over limit
Discharged 17.4 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
December 31, 2025
Solids, total suspended
332% over limit
Discharged 64.8 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
253% over limit
Discharged 7.06 mg/L against a permitted limit of 2 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Solids, total suspended
170% over limit
Discharged 162 mg/L against a permitted limit of 60 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
BOD, carbonaceous [5 day, 20 C]
34% over limit
Discharged 6.7 mg/L against a permitted limit of 5 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Solids, total suspended
7% over limit
Discharged 18.89093984 kg/d against a permitted limit of 17.70599985 kg/d (DAILY AV)
DMR, Limited - Numeric Violation
Nitrogen, ammonia total [as N]
32% over limit
Discharged 19.8 mg/L against a permitted limit of 15 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
November 30, 2025
BOD, carbonaceous [5 day, 20 C]
32% over limit
Discharged 6.62 mg/L against a permitted limit of 5 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
Solids, total suspended
57% over limit
Discharged 23.5 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
October 31, 2025
Solids, total suspended
79% over limit
Discharged 26.9 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
September 30, 2025
Solids, total suspended
77% over limit
Discharged 26.6 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
August 31, 2025
Solids, total suspended
42% over limit
Discharged 85 mg/L against a permitted limit of 60 mg/L (SINGGRAB)
DMR, Limited - Numeric Violation
Solids, total suspended
202% over limit
Discharged 45.3 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
July 31, 2025
Solids, total suspended
162% over limit
Discharged 39.3 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
June 30, 2025
Solids, total suspended
111% over limit
Discharged 31.6 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
May 31, 2025
Solids, total suspended
81% over limit
Discharged 27.1 mg/L against a permitted limit of 15 mg/L (DAILY AV)
DMR, Limited - Numeric Violation
April 30, 2025
Solids, total suspended
16% over limit
Discharged 17.4 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
July 13, 2026 (24 days ago)