B66/100
MOUNT ZION WSC — Water Quality Report 2026
Serving 2,028 people · Texas
Water Source
Purchased Surface Water
County
—
System ID
TX1990010
Violations
14
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 1.81 mg/L | 1.30 mg/L | Over Limit |
EPA Violation History
3
Violations (last 5yr)
1
Unresolved
1
Health-Related
TIER 3Unresolved
Disinfection byproduct treatment technique failure
When: May 15, 2025Rule: 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 22, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Treatment technique violation
When: October 17, 2024 – April 22, 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 MOUNT ZION WSC
Is MOUNT ZION WSC water safe to drink?
MOUNT ZION WSC water receives a grade of B (66/100), which is considered good. Out of 2 contaminants tested, 1 exceed EPA legal limits. 1 contaminant(s) exceed non-enforceable health goals. The water meets federal safety standards.
What contaminants has MOUNT ZION WSC detected?
2 contaminants were tested in MOUNT ZION WSC's water. Notable contaminants include Copper (90th percentile). 1 exceed EPA legal limits (MCLs). 1 exceed EPA health goals (MCLGs).
Does MOUNT ZION WSC have any EPA violations?
Yes, MOUNT ZION WSC has 14 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, RPT, TT. 3 are health-based violations.
How many people does MOUNT ZION WSC serve?
MOUNT ZION WSC serves approximately 2,028 people, Texas.
What type of water does MOUNT ZION WSC provide?
MOUNT ZION WSC sources its water from purchased surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is TX1990010.
How does MOUNT ZION WSC compare to other utilities in Texas?
MOUNT ZION WSC scores 66/100 with a grade of B (good). This is an above-average performance for utilities statewide. Visit our Texas state page for a full comparison of water systems.