F0/100
WALNUT CREEK SUD — Water Quality Report 2026
Serving 30,364 people · Texas
Water Source
Surface Water
County
—
System ID
TX1840008
Violations
62
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
4
Violations (last 5yr)
2
Unresolved
1
Health-Related
TIER 3Unresolved
Disinfection byproduct treatment technique failure
When: May 1, 2025Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Unresolved
Monitoring / Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: December 30, 2024Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved
Reporting violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 17, 2024 – April 14, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Treatment technique violation
When: October 17, 2024 – April 14, 2025Rule: Ground Water 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 WALNUT CREEK SUD
Is WALNUT CREEK SUD water safe to drink?
WALNUT CREEK SUD water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 62 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has WALNUT CREEK SUD detected?
69 contaminants were tested in WALNUT CREEK SUD's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does WALNUT CREEK SUD have any EPA violations?
Yes, WALNUT CREEK SUD has 62 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, MR, RPT. 51 are health-based violations.
How many people does WALNUT CREEK SUD serve?
WALNUT CREEK SUD serves approximately 30,364 people, Texas.
What type of water does WALNUT CREEK SUD provide?
WALNUT CREEK SUD 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 TX1840008.
How does WALNUT CREEK SUD compare to other utilities in Texas?
WALNUT CREEK SUD 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.