Updated 2026-10-15

County water report

Tom Green County Water Quality

Name: Tom Green County Water Quality Data (2026)
Creator: PurityMap
License: https://creativecommons.org/licenses/by/4.0/

Tom Green County, Texas: one city report built from EPA and utility records. A county has many suppliers; each city shows the system that serves it.

Find my system Open on the map Private wells in Tom Green County

Across the county's systems

Highest result for each contaminant

One row per contaminant: the highest result any system in the county reported, against its limit. Open a row for the systems behind it.

LithiumCITY OF SAN ANGELO10 µg/L EPA health reference level (screening, not a legal limit) · US EPA50.1 µg/L

CITY OF SAN ANGELO50.1 µg/LSample date: 2023-04-19 to 2024-01-17

Perfluorohexanesulfonic acid (PFHxS)CITY OF SAN ANGELO10 ng/L federal MCL (2024) · US EPA9.7 ng/L

CITY OF SAN ANGELO9.7 ng/LSample date: 2023-04-19 to 2024-01-17

Lead (90th percentile)CITY OF SAN ANGELO15 µg/L federal action level · US EPA3.95 µg/L

CITY OF SAN ANGELO3.95 µg/LMonitoring period: 2022–2024

Perfluorobutanesulfonic acid (PFBS)CITY OF SAN ANGELO2,000 ng/L EPA health advisory (screening, not a legal limit) · US EPA8.4 ng/L

CITY OF SAN ANGELO8.4 ng/LSample date: 2023-04-19 to 2024-01-17

Perfluorohexanoic acid (PFHxA)CITY OF SAN ANGELO400,000 ng/L Michigan EGLE state MCL (strictest US state) · Michigan EGLE4 ng/L

CITY OF SAN ANGELO4 ng/LSample date: 2023-04-19 to 2024-01-17

Perfluorobutanoic acid (PFBA)CITY OF SAN ANGELONo federal or state limit; shown for transparency10.2 ng/L

CITY OF SAN ANGELO10.2 ng/LSample date: 2023-04-19 to 2024-01-17

Perfluoropentanoic acid (PFPeA)CITY OF SAN ANGELONo federal or state limit; shown for transparency3 ng/L

CITY OF SAN ANGELO3 ng/LSample date: 2023-04-19 to 2024-01-17

24 PFAS tested, none detected in this systemShow

Tested in this system: CITY OF SAN ANGELO

11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)
1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)
1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)
1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)
9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)
Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)
Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)
Perfluoro-3-methoxypropanoic acid (PFMPA)
Perfluoro-4-methoxybutanoic acid (PFMBA)
Perfluorodecanoic acid (PFDA)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanesulfonic acid (PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorononanoic acid (PFNA)
Perfluorooctanesulfonic acid (PFOS)
Perfluorooctanoic acid (PFOA)
Perfluoropentanesulfonic acid (PFPeS)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic acid (PFTrDA)
Perfluoroundecanoic acid (PFUnA)

1 city

Cities ranked by the records

1
San AngeloCITY OF SAN ANGELO
PFAS detected, within limitLead below action level
Open city report →

Showing 1 of 1 cities · scores are system-level, not tap tests

Ranked by the Purity Score of each city's main water system, highest first. Scores belong to water systems; there is no county score. The score is computed only from contaminants measured in the published EPA record, so this ranks the record, not which city's water is safest. How the score works.

PFAS in Tom Green CountyPFAS detected in 1 of 1 city; none had a sample above a 2024 EPA limit

4.0 ng/L federal MCL · PFOS, ng/LPFAS in Texas

Lead

0of 1 city above the 15 µg/L action level

Based on each system's 90th-percentile result. Lead from household plumbing isn't in this record.

Lead in Texas

Who supplies the county

Largest water systems

San AngeloCITY OF SAN ANGELO · TX2260001
105,229 served

Questions

Frequently asked

How does Tom Green County tap water compare across cities?

PurityMap ranks 1 city in Tom Green County by the Purity Score of each city's main water system, computed only from contaminants measured in the published EPA record. Scores belong to water systems, not to cities. The highest published score is San Angelo's main water system: CITY OF SAN ANGELO · PWSID TX2260001 · Purity Score 76 (Good) · Confidence: moderate · Assessed at the water-system level. The ranking compares the records, not which city's water is safest, and your own tap can differ with household plumbing.

How many Tom Green County cities had a PFAS sample above a 2024 EPA limit?

None of the 1 Tom Green County city report had a PFAS sample above a 2024 EPA limit in EPA's UCMR 5 testing. PFAS were detected below the limit in 1.

Is there lead in Tom Green County tap water?

Utilities report lead as a 90th-percentile result from home taps. 1 of 1 Tom Green County cities reported a value above zero, and none was above the 15 µg/L federal action level. Lead usually comes from a building's own pipes and fixtures, so only a test at your tap tells you what you drink.

Next step

Follow Tom Green County's water

Get an email when a city record in the county changes.

Find my water

FOLLOW THIS COUNTY

Record changes only

We email when places in Tom Green County get new results. Unsubscribe any time.

Follow Tom Green County's water →