Tap Water Texas

Utility · TX1010359

HARRIS COUNTY WCID 109

HARRIS COUNTY WCID 109 (PWSID TX1010359) is an active community water system in Texas serving about 10,134 people through roughly 3,540 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 15 violation record(s), including 0 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.

10,134population served
3,540service connections
0health-based viol.
15viol. rows indexed
EPA ECHO facility search tipContaminant guides

System facts

  • PWSID: TX1010359
  • Type: Community water system (active)
  • Primary source: Purchased surface water
  • Owner type: Local government
  • Wholesaler flag: Yes
  • Phone (EPA record): 713-623-4531
  • Address (EPA record): 1300 POST OAK BLVD STE 2400, Houston 77056

Service geography

Cities/areas:

Houston

Counties: Harris

ZIPs served (EPA geo): —

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).

BeginContaminant / issueViolationCategoryHealth-basedStatusResult / MCL
01/01/20212,4,5-TPMonitoring, RegularMRNoArchived— / MCL 0.05 mg/L
01/01/2021Aldicarb sulfoneMonitoring, RegularMRNoArchived— / MCL
01/01/2021OXAMYLMonitoring, RegularMRNoArchived— / MCL 0.2 mg/L
01/01/2021CYANIDEMonitoring, RegularMRNoArchived— / MCL 0.2 mg/L
01/01/2021FluorideMonitoring, RegularMRNoArchived— / MCL 4.0 mg/L
01/01/2021CarbofuranMonitoring, RegularMRNoArchived— / MCL 0.04 mg/L
01/01/2021DinosebMonitoring, RegularMRNoArchived— / MCL 0.007 mg/L
01/01/20211,2-DIBROMO-3-CHLOROPROPANEMonitoring, RegularMRNoArchived— / MCL 0.0002 mg/L
01/01/2021AldicarbMonitoring, RegularMRNoArchived— / MCL
01/01/2021PicloramMonitoring, RegularMRNoArchived— / MCL 0.5 mg/L
01/01/2021ETHYLENE DIBROMIDEMonitoring, RegularMRNoArchived— / MCL 0.00005 mg/L
01/01/20212,4-DMonitoring, RegularMRNoArchived— / MCL 0.07 mg/L
01/01/2021DalaponMonitoring, RegularMRNoArchived— / MCL 0.2 mg/L
01/01/2021Aldicarb sulfoxideMonitoring, RegularMRNoArchived— / 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)

  • 12/31/2024: .00236 mg/L
  • 12/31/2021: .0009 mg/L
  • 12/31/2018: .00299 mg/L
  • 12/31/2015: .00535 mg/L
  • 12/31/2014: .00814 mg/L
  • 12/31/2013: .00911 mg/L
  • 12/31/2007: .0061 mg/L
  • 12/31/2001: .0025 mg/L

Lead explainer →

Copper (CU90)

No LCR copper samples in the extracted slice.

Copper explainer →

FAQs

What does PWSID TX1010359 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