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
Oak Creek II
Montgomery County
144 3 1
West Park Addition
Parker County
144 5 1
American Legion Mia Post 231
Grayson County
141 6 4
Arrowhead Water System
Wilson County
141 4 0
Crown Mountain WSC
Real County
141 2 0
Green Acres Mobile Home Park
El Paso County
141 5 0
Lone Pine Subdivision
Galveston County
141 4 2
Whispering Oaks Water Coop
Hunt County
141 10 0
Austin White Lime McNeil Plant & Quarry
Travis County
140 2 0
Meyersville School
DeWitt County
140 4 2
Skywater WSC
Castro County
140 9 6
Candelaria WSC
Presidio County
138 7 3
Chaparral Place Water System
Montgomery County
138 5 1
Heritage Estates
Grayson County
138 6 0
Rocky Creek Estates
Harris County
138 1 0
Country Oaks Arbor MHP
Brazoria County
135 1 0
Fowlerton WSC
La Salle County
135 6 2
Hawk Ridge
Wise County
135 3 0
Ranch Hand Apartments
Randall County
135 4 0
Sun Ranch Water System
Fort Bend County
135 3 0
Triangle Metal & Manufacturing CO
Harris County
134 6 3
Hill Country Lakes RV Campground
Travis County
132 4 0
Meachen Meadows Subdivision Water System
Montgomery County
132 3 0
Telge Terrace Mobile Home Subdivision
Harris County
132 1 0
Havenwood Nature School
Hays County
130 4 0
Horseshoe Bend Estates
Wichita County
130 2 1
Mullin Independent School District
Mills County
130 6 2
Adrian Municipal Water System
Oldham County
129 6 2
Autumn Acres Water System
Montgomery County
129 5 1
Escondido Creek Water System
Kleberg County
129 2 1
Ponder Acres Water System
Denton County
129 4 0
Singing Meadows Subdivision
Wise County
129 2 0
Southern Oaks Water System
Liberty County
129 3 1
Northgate Mobile Home Park 1
Ector County
126 5 0
Alleyton Resource CO
Fort Bend County
125 4 1
Boerne Medical Complex
Kendall County
125 5 0
Valley Prestressed Products
Colorado County
125 4 2
Hamilton Estates Water System
Harris County
123 12 5
Strawberry Estates
Wise County
123 2 1
Sunset Bay
Aransas County
123 3 2
Bear Springs Trails Subdivision
Bandera County
120 1 0
Binford Place Subdivision
Harris County
120 10 2
Eldorado Water
Matagorda County
120 4 3
Friendly Oaks WSC
Tarrant County
120 5 2
Koch Heat Transfer
Harris County
120 3 0
Saint Stephens Episcopal Church & School
Hays County
120 3 1
T L Water Jones Acres
Wise County
120 11 2
Umbarger Community Water Supply
Randall County
120 6 1
West Bastrop Village MUD
Bastrop County
120 2 0
Centerline WSC
Burleson County
118 2 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 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.