F3/100
ZAPATA COUNTY WATERWORKS SWTP — Water Quality Report 2026
Serving 13,736 people · Texas
Water Source
Surface Water
County
—
System ID
TX2530002
Violations
22
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
3
Violations (last 5yr)
0
Unresolved
1
Health-Related
TIER 3Resolved
Surface water treatment technique failure
When: July 2, 2024 – September 19, 2024Enforcement: Resolving — corrective action underway
TIER 1 — URGENTResolved
Maximum Contaminant Level Violation
When: June 1, 2023 – June 30, 2023Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2022 – February 8, 2023Enforcement: 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 ZAPATA COUNTY WATERWORKS SWTP
Is ZAPATA COUNTY WATERWORKS SWTP water safe to drink?
ZAPATA COUNTY WATERWORKS SWTP water receives a grade of F (3/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 22 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has ZAPATA COUNTY WATERWORKS SWTP detected?
69 contaminants were tested in ZAPATA COUNTY WATERWORKS SWTP's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does ZAPATA COUNTY WATERWORKS SWTP have any EPA violations?
Yes, ZAPATA COUNTY WATERWORKS SWTP has 22 EPA violation(s) on record, with the most recent in 2024. Violation types include Other, MCL, TT. 18 are health-based violations.
How many people does ZAPATA COUNTY WATERWORKS SWTP serve?
ZAPATA COUNTY WATERWORKS SWTP serves approximately 13,736 people, Texas.
What type of water does ZAPATA COUNTY WATERWORKS SWTP provide?
ZAPATA COUNTY WATERWORKS SWTP 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 TX2530002.
How does ZAPATA COUNTY WATERWORKS SWTP compare to other utilities in Texas?
ZAPATA COUNTY WATERWORKS SWTP scores 3/100 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.