TapSafetyReport
C59/100

CITY OF LAGO VISTA — Water Quality Report 2026

Serving 8,698 people · Texas

Water Source
Surface Water
County
—
System ID
TX2270092
Violations
18

Contaminant Test Results

1 contaminant above EPA health goals
ContaminantDetectedLimit (MCL)Status
Lead (90th percentile)
0.002 mg/L0.015 mg/LAbove Goal

EPA Violation History

10

Violations (last 5yr)

8

Unresolved

3

Health-Related

TIER 3Unresolved

Disinfection byproduct treatment technique failure

When: August 31, 2025Rule: Ground Water RuleVerify on EPA.gov
TIER 1 — URGENTUnresolved

Violation related to Nitrate

When: August 1, 2025 – August 31, 2025Rule: Surface Water Treatment RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Unresolved

Missed required monitoring deadline

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: August 1, 2025 – August 31, 2025Rule: Surface Water Treatment RuleVerify on EPA.gov
TIER 1 — URGENTUnresolved

Violation related to Nitrate

When: July 1, 2025 – July 31, 2025Rule: Surface Water Treatment RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved

Missed required monitoring deadline

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 1, 2025 – July 31, 2025Rule: Surface Water Treatment RuleEnforcement: Resolving — corrective action underway
TIER 3Unresolved

Missed required monitoring deadline

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 1, 2025 – July 31, 2025Rule: Surface Water Treatment RuleVerify on EPA.gov
TIER 3Unresolved

Disinfection byproduct treatment technique failure

When: May 1, 2025Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Unresolved

Reporting violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: October 17, 2024Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 2Unresolved

Treatment technique violation

When: October 17, 2024Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved

Surface water treatment technique failure

When: July 1, 2023 – November 16, 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 CITY OF LAGO VISTA

Is CITY OF LAGO VISTA water safe to drink?

CITY OF LAGO VISTA water receives a grade of C (59/100), which is considered fair. 0 contaminant(s) exceed EPA legal limits and 18 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has CITY OF LAGO VISTA detected?

31 contaminants were tested in CITY OF LAGO VISTA's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).

Does CITY OF LAGO VISTA have any EPA violations?

Yes, CITY OF LAGO VISTA has 18 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, TT, MR. 5 are health-based violations.

How many people does CITY OF LAGO VISTA serve?

CITY OF LAGO VISTA serves approximately 8,698 people, Texas.

What type of water does CITY OF LAGO VISTA provide?

CITY OF LAGO VISTA 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 TX2270092.

How does CITY OF LAGO VISTA compare to other utilities in Texas?

CITY OF LAGO VISTA scores 59/100 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.