C48/100
JEFFERSON COUNTY WCID 10 — Water Quality Report 2026
Serving 4,605 people · Texas
Water Source
Surface Water
County
—
System ID
TX1230003
Violations
13
Contaminant Test Results
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.010 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
4
Violations (last 5yr)
4
Unresolved
4
Health-Related
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (running average)
When: July 1, 2025 – September 30, 2025Rule: Stage 2 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (running average)
When: July 1, 2025 – September 30, 2025Rule: Stage 2 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (running average)
When: April 1, 2025 – June 30, 2025Rule: Stage 2 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (running average)
When: April 1, 2025 – June 30, 2025Rule: Stage 2 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov
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 JEFFERSON COUNTY WCID 10
Is JEFFERSON COUNTY WCID 10 water safe to drink?
JEFFERSON COUNTY WCID 10 water receives a grade of C (48/100), which is considered fair. 0 contaminant(s) exceed EPA legal limits and 13 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has JEFFERSON COUNTY WCID 10 detected?
31 contaminants were tested in JEFFERSON COUNTY WCID 10's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).
Does JEFFERSON COUNTY WCID 10 have any EPA violations?
Yes, JEFFERSON COUNTY WCID 10 has 13 EPA violation(s) on record, with the most recent in 2025. Violation types include MCL, TT, MR. 9 are health-based violations.
How many people does JEFFERSON COUNTY WCID 10 serve?
JEFFERSON COUNTY WCID 10 serves approximately 4,605 people, Texas.
What type of water does JEFFERSON COUNTY WCID 10 provide?
JEFFERSON COUNTY WCID 10 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 TX1230003.
How does JEFFERSON COUNTY WCID 10 compare to other utilities in Texas?
JEFFERSON COUNTY WCID 10 scores 48/100 with a grade of C (fair). This score indicates room for improvement compared to other utilities. Visit our Texas state page for a full comparison of water systems.