F0/100
ZAVALA COUNTY WCID 1 — Water Quality Report 2026
Serving 2,043 people · Texas
Water Source
Groundwater
County
—
System ID
TX2540003
Violations
99
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
1
Violation (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Disinfection byproduct treatment technique failure
When: April 3, 2022 – July 11, 2022Rule: 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 ZAVALA COUNTY WCID 1
Is ZAVALA COUNTY WCID 1 water safe to drink?
ZAVALA COUNTY WCID 1 water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 99 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has ZAVALA COUNTY WCID 1 detected?
1 contaminants were tested in ZAVALA COUNTY WCID 1's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does ZAVALA COUNTY WCID 1 have any EPA violations?
Yes, ZAVALA COUNTY WCID 1 has 99 EPA violation(s) on record, with the most recent in 2022. Violation types include Other, MR, MCL. 81 are health-based violations.
How many people does ZAVALA COUNTY WCID 1 serve?
ZAVALA COUNTY WCID 1 serves approximately 2,043 people, Texas.
What type of water does ZAVALA COUNTY WCID 1 provide?
ZAVALA COUNTY WCID 1 sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is TX2540003.
How does ZAVALA COUNTY WCID 1 compare to other utilities in Texas?
ZAVALA COUNTY WCID 1 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.