Tapcensus

Chlorine (MRDL) violations in Utah

6 active public water systems in Utah had a Chlorine (MRDL) violation in the past three years. What Chlorine (MRDL) is and why it matters.

Health effects: Acute high-dose exposure to chlorinated water can cause eye and nose irritation, stomach discomfort, and nausea. Chronic exposure above the MRDL is primarily a concern because elevated chlorine accelerates formation of trihalomethanes and haloacetic acids, which are associated with increased cancer risk over time.

Systems with a Chlorine (MRDL) violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Hanna Water & Sewer Improvement District
Duchesne County 		405 4 0
Camp Wapiti (elks)
Tooele County 		200 2 1
Aneth Community School Bia
Aneth · County 		192 2 0
Navajo Mountain Community Boarding School Bia
Navajo Mountain · County 		163 3 0
High Creek Water CO
Cache County 		120 5 0
Pole Patch Water System
Weber County 		80 6 1
About this data

A system is counted once if any of its violations in the past three years involved Chlorine (MRDL), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Chlorine (MRDL) alone.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Utah records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.