TapSafetyReport
B79/100

HARRIS COUNTY MUD 255 — Water Quality Report 2026

Serving 1,185 people · Texas

Water Source
Purchased Surface Water
County
—
System ID
TX1012766
Violations
17

Contaminant Test Results

EPA Violation History

10

Violations (last 5yr)

2

Unresolved

0

Health-Related

TIER 3Unresolved

Disinfection byproduct treatment technique failure

When: July 24, 2025Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Unresolved

Disinfection byproduct treatment technique failure

When: July 24, 2025Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 3Resolved

Exceeded the MCL for disinfection byproducts

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

When: January 1, 2024 – March 31, 2024Enforcement: Resolving — corrective action underway
TIER 3Resolved

Exceeded the MCL for disinfection byproducts

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

When: January 1, 2024 – March 31, 2024Enforcement: Resolving — corrective action underway
TIER 3Resolved

Disinfection byproduct treatment technique failure

When: December 31, 2023 – May 30, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Exceeded the MCL for disinfection byproducts

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

When: January 1, 2023 – March 31, 2023Enforcement: Resolving — corrective action underway
TIER 3Resolved

Exceeded the MCL for disinfection byproducts

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

When: January 1, 2023 – March 31, 2023Enforcement: Resolving — corrective action underway
TIER 3Resolved

Monitoring / Reporting Violation

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

When: December 30, 2022 – October 2, 2023Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Failed to issue ongoing public notification

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

When: October 1, 2022 – September 5, 2023Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved

Monitoring / Reporting Violation

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

When: December 30, 2021 – January 3, 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 HARRIS COUNTY MUD 255

Is HARRIS COUNTY MUD 255 water safe to drink?

HARRIS COUNTY MUD 255 water receives a grade of B (79/100), which is considered good. Out of 1 contaminants tested, none exceed EPA legal limits. The water meets federal safety standards.

What contaminants has HARRIS COUNTY MUD 255 detected?

1 contaminants were tested in HARRIS COUNTY MUD 255's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.

Does HARRIS COUNTY MUD 255 have any EPA violations?

Yes, HARRIS COUNTY MUD 255 has 17 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, MR, MCL. 1 are health-based violations.

How many people does HARRIS COUNTY MUD 255 serve?

HARRIS COUNTY MUD 255 serves approximately 1,185 people, Texas.

What type of water does HARRIS COUNTY MUD 255 provide?

HARRIS COUNTY MUD 255 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 TX1012766.

How does HARRIS COUNTY MUD 255 compare to other utilities in Texas?

HARRIS COUNTY MUD 255 scores 79/100 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.