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CLWSC CANYON LAKE SHORES

Texas — Community Water System — PWSID: TX0460019

System Information

PWSIDTX0460019
System NameCLWSC CANYON LAKE SHORES
System TypeCommunity Water System
Water SourceSurface Water
Activity StatusActive
Owner TypePrivate
EPA Region06
Serves SchoolNo
WholesalerYes
First ReportedMar 14, 1980
Last ReportedJan 6, 2026

Location & Contact

StateTexas
CityCANYON LAKE
ZIP Code78133-0005
AddressPO BOX 1742
OrganizationWILLIAMS, AUNDREA
Phone281-726-4520

Population & Service

Population Served44,196
Service Connections14,732

Drinking Water Violations (118)

This water system has 118 violations recorded in the EPA SDWIS database.

Begin Date End Date Contaminant Category Health-Based Major Measured Federal MCL State MCL Status Return to Compliance Rule
Jul 1, 2025 Jul 31, 2025 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Jul 31, 2025 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jul 1, 2025 Jul 31, 2025 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Jul 31, 2025 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jul 1, 2025 Jul 31, 2025 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Jul 31, 2025 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jul 1, 2025 Jul 31, 2025 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Jul 31, 2025 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jul 1, 2025 Jul 31, 2025 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Jul 31, 2025 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jul 1, 2025 Jul 31, 2025 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Jul 31, 2025 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jul 1, 2025 Sep 30, 2025 TTHM MCL Yes No .113 MG/L 0.080 mg/L .08 Archived Sep 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Feb 4, 2025 — TTHM MR No No — 0.080 mg/L — Resolved May 6, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Feb 4, 2025 — TTHM MR No No — 0.080 mg/L — Resolved May 6, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Feb 4, 2025 — TTHM MR No No — 0.080 mg/L — Resolved May 6, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2024 Oct 31, 2024 Revised Total Coliform Rule MON No No — — — Resolved Oct 31, 2024 Revised Total Coliform Rule
Oct 1, 2024 Oct 31, 2024 Revised Total Coliform Rule MON No No — — — Resolved Oct 31, 2024 Revised Total Coliform Rule
Oct 1, 2024 Oct 31, 2024 Revised Total Coliform Rule MON No No — — — Resolved Oct 31, 2024 Revised Total Coliform Rule
Oct 1, 2021 Oct 31, 2021 Revised Total Coliform Rule MON No No — — — Resolved Oct 31, 2021 Revised Total Coliform Rule
Oct 1, 2021 Oct 31, 2021 Revised Total Coliform Rule MON No No — — — Resolved Oct 31, 2021 Revised Total Coliform Rule
Oct 1, 2021 Oct 31, 2021 Revised Total Coliform Rule MON No No — — — Resolved Oct 31, 2021 Revised Total Coliform Rule
Oct 1, 2021 Oct 31, 2021 Revised Total Coliform Rule MON No No — — — Resolved Oct 31, 2021 Revised Total Coliform Rule
Feb 1, 2021 Feb 28, 2021 Surface Water Treatment Rule MR No Yes — — — Resolved Feb 28, 2021 Surface Water Treatment Rule
Feb 1, 2021 Feb 28, 2021 Surface Water Treatment Rule MR No Yes — — — Resolved Feb 28, 2021 Surface Water Treatment Rule
Feb 1, 2021 Feb 28, 2021 Surface Water Treatment Rule MR No Yes — — — Resolved Feb 28, 2021 Surface Water Treatment Rule
Feb 1, 2021 Feb 28, 2021 Surface Water Treatment Rule MR No Yes — — — Resolved Feb 28, 2021 Surface Water Treatment Rule
Jan 1, 2021 Dec 31, 2023 OXAMYL MR No Yes — 0.2 mg/L — Resolved Dec 31, 2023 Synthetic Organic Chemicals
Jan 1, 2021 Dec 31, 2023 Carbofuran MR No Yes — 0.04 mg/L — Resolved Dec 31, 2023 Synthetic Organic Chemicals
Jan 1, 2021 Dec 31, 2023 Carbofuran MR No Yes — 0.04 mg/L — Resolved Dec 31, 2023 Synthetic Organic Chemicals
Jan 1, 2021 Dec 31, 2023 Carbofuran MR No Yes — 0.04 mg/L — Resolved Dec 31, 2023 Synthetic Organic Chemicals
Jan 1, 2021 Dec 31, 2023 Carbofuran MR No Yes — 0.04 mg/L — Resolved Dec 31, 2023 Synthetic Organic Chemicals
Jan 1, 2021 Dec 31, 2023 Aldicarb sulfone MR No Yes — — — Resolved Dec 31, 2023 Synthetic Organic Chemicals
Jan 1, 2021 Dec 31, 2023 Aldicarb sulfone MR No Yes — — — Resolved Dec 31, 2023 Synthetic Organic Chemicals
Jan 1, 2021 Dec 31, 2023 Aldicarb sulfone MR No Yes — — — Resolved Dec 31, 2023 Synthetic Organic Chemicals
Jan 1, 2021 Dec 31, 2023 Aldicarb sulfone MR No Yes — — — Resolved Dec 31, 2023 Synthetic Organic Chemicals
Jan 1, 2021 Dec 31, 2023 Aldicarb sulfoxide MR No Yes — — — Resolved Dec 31, 2023 Synthetic Organic Chemicals
Jan 1, 2021 Dec 31, 2023 Aldicarb sulfoxide MR No Yes — — — Resolved Dec 31, 2023 Synthetic Organic Chemicals
Jan 1, 2021 Dec 31, 2023 Aldicarb sulfoxide MR No Yes — — — Resolved Dec 31, 2023 Synthetic Organic Chemicals
Jan 1, 2021 Dec 31, 2023 Aldicarb sulfoxide MR No Yes — — — Resolved Dec 31, 2023 Synthetic Organic Chemicals
Jan 1, 2021 Dec 31, 2023 OXAMYL MR No Yes — 0.2 mg/L — Resolved Dec 31, 2023 Synthetic Organic Chemicals
Jan 1, 2021 Dec 31, 2023 OXAMYL MR No Yes — 0.2 mg/L — Resolved Dec 31, 2023 Synthetic Organic Chemicals
Jan 1, 2021 Dec 31, 2023 OXAMYL MR No Yes — 0.2 mg/L — Resolved Dec 31, 2023 Synthetic Organic Chemicals
Jan 1, 2021 Dec 31, 2023 Aldicarb MR No Yes — — — Resolved Dec 31, 2023 Synthetic Organic Chemicals
Jan 1, 2021 Dec 31, 2023 Aldicarb MR No Yes — — — Resolved Dec 31, 2023 Synthetic Organic Chemicals
Jan 1, 2021 Dec 31, 2023 Aldicarb MR No Yes — — — Resolved Dec 31, 2023 Synthetic Organic Chemicals
Jan 1, 2021 Dec 31, 2023 Aldicarb MR No Yes — — — Resolved Dec 31, 2023 Synthetic Organic Chemicals
Oct 1, 2012 — Lead and Copper Rule MR No No — TT — Resolved Oct 4, 2013 Lead and Copper Rule
Sep 1, 2010 Sep 30, 2010 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 30, 2010 Total Coliform Rule
Sep 1, 2010 Sep 30, 2010 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 30, 2010 Total Coliform Rule
Sep 1, 2010 Sep 30, 2010 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 30, 2010 Total Coliform Rule
Sep 1, 2010 — Public Notice Other No No — — — Resolved Aug 20, 2018 Public Notice Rule and Revised PN Rule
Sep 1, 2010 — Public Notice Other No No — — — Resolved Aug 20, 2018 Public Notice Rule and Revised PN Rule
Sep 1, 2010 — E. COLI MR No Yes — — — Resolved Feb 11, 2014 Ground Water Rule
Sep 1, 2010 — E. COLI MR No Yes — — — Resolved Feb 11, 2014 Ground Water Rule
Sep 1, 2010 — E. COLI MR No Yes — — — Resolved Feb 11, 2014 Ground Water Rule

About This Water System

Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.

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