Tapcensus

Gross Alpha, Excl. Radon and U violations in Texas

66 active public water systems in Texas had a Gross Alpha, Excl. Radon and U violation in the past three years. What Gross Alpha, Excl. Radon and U is and why it matters.

Health effects: Alpha-emitting radionuclides accumulate in bone and soft tissue, delivering sustained internal radiation doses that increase lifetime cancer risk. There is no established safe threshold for ionizing radiation. Individual contributors such as radium-226 and polonium-210 have their own MCLs; gross alpha serves as a cost-effective screening tool that triggers more specific radionuclide analysis when exceeded.

Systems with a Gross Alpha, Excl. Radon and U violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Sky Harbor Ranchettes Water System
Kerr County
66 9 1
Live Oak Hills Subdivision
McCulloch County
65 4 0
Lakeland Services
McCulloch County
63 4 1
Shelby Water
Shelby County
61 14 4
Frio Canon Water
Real County
60 2 1
Houston Suburban Heights MHP
Harris County
60 14 5
Margies MHP
Midland County
60 9 4
Saddle Mountain Water Cooperative
Kerr County
56 1 0
Country View MHP
Lubbock County
54 11 4
Los Botines WSC
Webb County
54 9 3
A & S Water Services
Montgomery County
52 5 2
Emerald Estates
San Jacinto County
49 4 1
McElroy Ranch Water System
Brewster County
45 10 0
Lee Limas Mobile Home Park
El Paso County
39 13 4
Shafter Mine
Presidio County
32 13 4
Waller County MUD 19
Waller County
27 2 0
About this data

A system is counted once if any of its violations in the past three years involved Gross Alpha, Excl. Radon and U, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Gross Alpha, Excl. Radon and U 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.