F0/100
CLWSC CANYON LAKE SHORES — Water Quality Report 2026
Serving 44,196 people · Texas
Water Source
Surface Water
County
—
System ID
TX0460019
Violations
75
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
6
Violations (last 5yr)
1
Unresolved
3
Health-Related
TIER 1 — URGENTResolved
Violation related to Nitrate
When: July 1, 2025 – July 31, 2025Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 1 — URGENTResolved
Violation related to Nitrate
When: July 1, 2025 – July 31, 2025Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (running average)
TIER 3Resolved
Failed to conduct Level 2 Assessment
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: February 4, 2025 – May 6, 2025Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 1, 2024 – October 31, 2024Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 1, 2021 – October 31, 2021Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Frequently Asked Questions About CLWSC CANYON LAKE SHORES
Is CLWSC CANYON LAKE SHORES water safe to drink?
CLWSC CANYON LAKE SHORES water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 75 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has CLWSC CANYON LAKE SHORES detected?
54 contaminants were tested in CLWSC CANYON LAKE SHORES's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does CLWSC CANYON LAKE SHORES have any EPA violations?
Yes, CLWSC CANYON LAKE SHORES has 75 EPA violation(s) on record, with the most recent in 2025. Violation types include TT, MCL, MR. 10 are health-based violations.
How many people does CLWSC CANYON LAKE SHORES serve?
CLWSC CANYON LAKE SHORES serves approximately 44,196 people, Texas.
What type of water does CLWSC CANYON LAKE SHORES provide?
CLWSC CANYON LAKE SHORES sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is TX0460019.
How does CLWSC CANYON LAKE SHORES compare to other utilities in Texas?
CLWSC CANYON LAKE SHORES scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Texas state page for a full comparison of water systems.