SOUTHWEST HARRIS COUNTY MUD 1

HOUSTON, TX · ~1,581 people served

Check your exact address → HOUSTON overview

100

Excellent

PurityRadar safety score

PWSID

TX1011911

State

Texas

City

HOUSTON

Population served

1,581

Primary source

SWP

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 100

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2025. Official EPA record →

Other · EPA contaminant 7500 began Oct 2025 Unaddressed

Monitoring & reporting · Lead & Copper Rule began Oct 2024 Resolved

Other · EPA contaminant 7500 began Jun 2022 Resolved

Treatment technique · Lead & Copper Rule health-based began Apr 2022 Resolved

Treatment technique · Lead & Copper Rule health-based began Mar 2022 Resolved

Other · EPA contaminant 7500 began Jan 2022 Resolved

Treatment technique · Lead & Copper Rule health-based began Dec 2021 Resolved

Monitoring & reporting · Total coliform began Apr 2006 Resolved

Recent enforcement actions

State action · SIA Dec 2025
State action · SOX Mar 2025
State action · SIE Oct 2024
State action · SIA Oct 2024
State action · SO0 Sep 2022
State action · SOX Jul 2022
State action · SOX Jul 2022
State action · SIF Jul 2022

This profile is built from EPA public records for system TX1011911 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.