City Of San Angelo

Tom Green County, TX
TX2260001

Contaminants Exceeding Limits

The following contaminants have exceeded the guideline limits at least once in the past ten years.

  • CO

    Combined Radium (-226 & -228)

    Radium-226 and -228 are radioactive elements that enter water from eroding rock and soil. These naturally occurring contaminants increase the risk of cancer.

    13.565 pci/l
    EPA limit 5.000 pci/l
  • GR

    Gross Beta Particle Activity

    Gross Beta Particle Activity measures radioactivity from beta-emitting particles in water. Sources include nuclear facilities and certain minerals. It increases cancer risk.

    19.029 mrem/yr
    EPA limit 4.000 mrem/yr
  • HA

    Haloacetic acids (HAA9)

    Haloacetic acids are byproducts formed when chlorine disinfectants react with organic matter in water. This group of 9 compounds is regulated due to potential cancer risks.

    139.762 ppb
    EPA limit 60.000 ppb
  • ST

    Strontium

    Strontium is a metal found in rocks and soil that can enter water through erosion or industrial discharge. It can replace calcium in bones, affecting bone health.

    2.100 ppm
    EPA limit 1.500 ppm

Other Contaminants Detected

The following contaminants have been detected, but not exceeded the guideline limits in the past ten years.

Arsenic

5 detections
Avg Result:1.209 ppb
Limit:10.000 ppb

Atrazine

1 detection
Avg Result:0.017 ppb
Limit:3.000 ppb

Barium

14 detections
Avg Result:0.143 ppm
Limit:2.000 ppm

Bromodichloromethane

201 detections
Avg Result:7.385 ppb
Limit:80.000 ppb

Bromoform

201 detections
Avg Result:19.297 ppb
Limit:80.000 ppb

Carbon Tetrachloride

1 detection
Avg Result:0.150 ppb
Limit:5.000 ppb
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Contaminants tested

Contaminants that have been tested but not detected

Summary

People Served
101K
Surface Water
Tom Green County
Data from 2014-2024
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