Tapcensus

Chlorine (MRDL) violations in Texas

971 active public water systems in Texas 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
City of Mertens
Hill County
180 6 4
Highland Lakes
Parker County
180 5 1
Knust Godwin
Waller County
180 3 1
Monterrey Oaks
Montgomery County
180 5 1
Prairie Valley Isd
Montague County
180 3 0
Tex Villa Apartments
Lee County
180 6 0
Sunset Water
Moore County
177 3 0
Iaa Fort Worth North
Denton County
176 5 2
1585 & Frankford Discount RV Storage
Lubbock County
175 5 2
Southland Isd
Garza County
175 4 1
Derby Ing
Frio County
174 9 2
Oak Meadows Estates Subdivision
Brazoria County
174 5 0
Lion Elastomers Orange
Orange County
172 2 0
His Hill Ranch Camp
Kendall County
168 4 0
Rocky Point Water System
Denton County
168 4 0
Eola WSC
Concho County
165 7 5
Loving County Water System
Loving County
165 4 0
South Midland County Water System
Midland County
165 10 4
Woodland Estates
Bowie County
165 12 5
Midway Isd
Clay County
164 3 0
Spring Meadow Mobile Home Park
Midland County
163 4 0
Sunnydale WSC
Lamb County
162 4 0
IS Zen Center Lotus Lake
Montgomery County
160 3 0
Kiddie Koop Day Care Center
Bexar County
160 1 0
Chaparral Water System Gillespie
Gillespie County
159 3 1
Lazy River Mobile Home Park
Colorado County
159 6 1
New Danville Community
Montgomery County
159 3 0
Red Rock WSC
Denton County
159 4 3
City of Goree Water System
Knox County
156 3 0
Denton Estates Mobile Home Park
Denton County
156 12 5
Kelton Isd
Wheeler County
155 5 2
Twin Oaks Ranch
Smith County
153 5 2
Alliance Business Park
Tarrant County
150 5 0
Comcast Old Galveston Road
Harris County
150 3 0
Gulf Coast Trades Center
Walker County
150 5 2
H a B WSC
Camp County
150 2 1
Hill Country Montessori School
Kendall County
150 5 1
Lohn WSC
McCulloch County
150 5 0
Mas Katy Islamic Center
Harris County
150 3 1
New Wine Chapel
Fort Bend County
150 9 2
Pleasant Valley Business Park
Kendall County
150 5 1
San Pedro Canyon Subdivision Upper
Val Verde County
150 6 1
Titan Production Equipment
Colorado County
150 4 2
Washburn Community WSC
Armstrong County
150 5 1
Lake Creek Falls
Montgomery County
147 6 2
Thrive Early Learning Academy
Kendall County
147 6 0
Country Oaks Mobile Home Park
Tarrant County
146 6 3
Paisano Mobile Home Park
Jim Wells County
146 6 2
Country Lakes Water Supply
Panola County
144 6 3
North Point Villa
Harris County
144 3 0
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 Texas 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.