Clwsc Canyon Lake Shores

ZipCheckup's reading of EPA records for Clwsc Canyon Lake Shores (TX0460019): 5 health-based violations recorded since 2021. While 16 violations did appear in Clwsc Canyon Lake Shores's monitoring record, none is listed as unresolved; the utility serves approximately 44,196 residents. A closed violation record does not by itself establish compliance with every current EPA standard.

Data: EPA SDWIS

System Overview

Clwsc Canyon Lake Shores (EPA ID: TX0460019) is a community water system in Texas that serves approximately 44,196 people from surface water sources.

This system provides water to 5 ZIP codes across 5 communities.

Violation History

Status breakdown for accepted records with record years 2021-2026: 13 resolved, 3 archived, 0 addressed, and 0 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.

Recent Violations

Contaminants Detected

The following contaminants have been flagged in EPA records for this water system:

Health Risk Details

Haloacetic Acids (HAA5) (EPA limit: 0.06 mg/L)

Increased risk of cancer

Treatment options (verify a product is certified to reduce this contaminant): granular activated carbon (GAC), carbon block filter, reverse osmosis. Find the right filter →

Lead & Copper

EPA Lead and Copper Rule evidence attributed directly to this water system:

No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.

Radon Risk in Service Area

5 of 5 ZIP records with known zones are in EPA Radon Zone 3.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

ZIP Codes Served

Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by TX or modeled from parcel and building-footprint data.

• 78070 - Spring Branch
• 78133 - Canyon Lake
• 78163 - Bulverde
• 78606 - Blanco
• 78623 - Fischer

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Clwsc Canyon Lake Shores (TX0460019) on EPA.gov.

Frequently Asked Questions

Is Clwsc Canyon Lake Shores water safe to drink?

The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Clwsc Canyon Lake Shores; its 16 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.

How many people does Clwsc Canyon Lake Shores serve?

Clwsc Canyon Lake Shores serves approximately 44,196 people across 5 ZIP codes in Texas.

Where does Clwsc Canyon Lake Shores get its water?

The primary water source is surface water.

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  author = {{ZipCheckup}},
  title  = {{Clwsc Canyon Lake Shores (TX): 5 Health Violations}},
  year   = {n.d.},
  url    = {https://zipcheckup.com/water-system/tx0460019/}
}