WEST HARRIS COUNTY MUD NO 11 WWTF

NPDES ID: TX0111937

S — SNC: Compliance schedule violation

The facility missed a deadline in its compliance schedule by more than 90 days.

Violations

February 28, 2026

Copper, total [as Cu]

6% over limit

Discharged 0.0156 mg/L against a permitted limit of 0.0147 mg/L (DAILY AV)

DMR, Limited - Numeric Violation

March 31, 2025

BOD, carbonaceous [5 day, 20 C]

8% over limit

Discharged 27 mg/L against a permitted limit of 25 mg/L (DAILY MX)

DMR, Limited - Numeric Violation

February 28, 2025

E. coli

264% over limit

Discharged 727 MPN/100mL against a permitted limit of 200 MPN/100mL (DAILY MX)

DMR, Limited - Numeric Violation

First flagged

April 14, 2026 (3 months ago)

Last confirmed

July 13, 2026 (23 days ago)