Utility · TX1011911
SOUTHWEST HARRIS COUNTY MUD 1
SOUTHWEST HARRIS COUNTY MUD 1 (PWSID TX1011911) is an active community water system in Texas serving about 1,581 people through roughly 527 service connections. Its primary source is listed as purchased surface water. Cities/areas associated with this system in EPA geographic data: Houston. In recent EPA records indexed here, we found 9 violation record(s), including 3 health-based and 0 still listed as addressed/unaddressed (not fully resolved). This page summarizes public EPA SDWA/ECHO data for educational purposes. It is not a substitute for your utility’s official Consumer Confidence Report or public notices.
System facts
- PWSID: TX1011911
- Type: Community water system (active)
- Primary source: Purchased surface water
- Owner type: Local government
- Wholesaler flag: No
- Phone (EPA record): 713-864-5466
- Address (EPA record): 2727 ALLEN PKWY STE 1100, Houston 77019
Recent violation records (indexed subset)
Showing up to 40 recent violation identities (2021+ when dated), deduplicated from SDWA_VIOLATIONS_ENFORCEMENT. Status meanings come from EPA’s data dictionary (Resolved / Addressed / Unaddressed / Archived).
| Begin | Contaminant / issue | Violation | Category | Health-based | Status | Result / MCL |
|---|---|---|---|---|---|---|
| 12/01/2021 | Lead and Copper Rule | Public Education | TT | Yes | Resolved | — / MCL TT |
| 10/26/2025 | Public Notice | Public Notification Violation for NPDWR Violation | Other | No | Resolved | — / MCL |
| 10/01/2024 | Lead and Copper Rule | Follow-up Or Routine LCR Tap M/R | MR | No | Resolved | — / MCL TT |
| 06/11/2022 | Public Notice | Public Notification Violation for NPDWR Violation | Other | No | Resolved | — / MCL |
| 06/11/2022 | Public Notice | Public Notification Violation for NPDWR Violation | Other | No | Resolved | — / MCL |
| 04/01/2022 | Lead and Copper Rule | OCCT/SOWT Study/Recommendation | TT | Yes | Resolved | — / MCL TT |
| 03/31/2022 | Lead and Copper Rule | OCCT/SOWT Study/Recommendation | TT | Yes | Resolved | — / MCL TT |
| 01/21/2022 | Public Notice | Public Notification Violation for NPDWR Violation | Other | No | Resolved | — / MCL |
| — | Unspecified | — | No | — | — |
Lead & copper rule sample highlights
Codes PB90 / CU90 in SDWIS typically represent 90th percentile lead/copper monitoring results under the Lead and Copper Rule.
Lead (PB90)
- 12/31/2025: .00251 mg/L
- 12/31/2023: .0119 mg/L
- 12/31/2022: .013 mg/L
- 12/31/2021: .021 mg/L
- 12/31/2005: .0026 mg/L
- 12/31/2002: .006 mg/L
- 12/31/1999: .01 mg/L
- 12/31/1996: .0085 mg/L
FAQs
What does PWSID TX1011911 mean?
A Public Water System Identification number uniquely identifies a system in EPA’s Safe Drinking Water Information System (SDWIS). Texas IDs start with TX.
How current is this page?
Systems and geography reflect the EPA SDWA quarterly snapshot used for this build. Violation rows are a filtered recent subset (generally 2021+) and capped for readability—always confirm on ECHO and your CCR.
What should I do if I see a health-based violation?
Read the dates and status. Contact the utility for context, check for public notices, and review the newest Consumer Confidence Report. For medical concerns, talk with a clinician—this site is educational only.
Do lead/copper samples mean my home is safe?
LCR samples are utility monitoring results (often 90th percentile summary codes like PB90/CU90), not a test of every tap. Home plumbing can differ. Consider a certified lab test if you have reason for concern.
Citations
- EPA SDWIS via ECHO SDWA downloads: systems, geographic areas, violations/enforcement, LCR samples — SDWA Data Download Summary
- Explore the system in EPA tools using PWSID
TX1011911— ECHO home - Learn more about standards: EPA Safe Drinking Water Act