Drinking water quality · 2024
· Verified
· PWSID TX2260001
What's in San Angelo, TX tap water
1 contaminant in San Angelo, TX's water sat at or above a federal limit, led by TTHM at 1.4x the limit.
- !1 contaminant at or above a federal limit — worst is TTHM at 1.4x
- !1 open monitoring or reporting violation
- !1 contaminant within 20% of a limit
- !12 of 27 core regulated contaminants reported — 15 never appear in this report
+How this score is calculated
Every system starts at 100. Points come off for measured levels, for the federal violation record, and for how much of the core regulated set the utility actually reported. All three inputs are the utility's own published numbers and EPA's own records.
- −18 contaminants at or above a federal limit
- −4 contaminants within 20% of a limit
- −0 open health-based violations
- −3 open monitoring / reporting violations
- −4 health-based violations resolved in the last 5 years
- −11 core regulated contaminants never reported (12/27)
A 90–100 · B 80–89 · C 70–79 · D 60–69 · F below 60. A system reporting under a third of the core set is capped at C however clean its numbers look — a short report is not a clean bill of health.
Full grading methodology, constant for constant →What to worry about
- TTHM1.4× the federal limit66.9–110 ug/L · limit 80 ug/L
Long-term exposure above the federal limit is linked to liver, kidney, and central-nervous-system effects and increased cancer risk.
higher than 95% of U.S. systems
- PFHxS (Perfluorohexane sulfonic acid)97% of the federal limit9.700000000000001 ng/L · limit 10 ng/L
Regulated by the EPA at 10 parts per trillion and included in the PFAS Hazard Index.
higher than 80% of U.S. systems
+16 contaminants were measured and came in below the limitShow all
| Contaminant | Measured | Federal limit |
|---|---|---|
| Chloramine | 3 mg/L | 4 mg/L |
| HAA5 | 13–37.1 ug/L | 60 ug/L |
| Cyanide | 84.2 ug/L | 200 ug/L |
| Lead | 0.00395 mg/L | 0.015 mg/L |
| Arsenic | 2 ug/L | 10 ug/L |
| Barium | 0.22 mg/L | 2 mg/L |
| Copper | 0.132 mg/L | 1.3 mg/L |
| Uranium | 2.9 ug/L | 30 ug/L |
| Fluoride | 0.333–0.333 mg/L | 4 mg/L |
| Nitrate | 0.426 mg/L | 10 mg/L |
| Lithium | 47 ug/L | — |
| Gross Beta Particle Activity | 11.8 pCi/L | 0 pCi/L |
| PFBA | 10.200000000000001 ng/L | — |
| PFBS | 8.4 ng/L | — |
| PFPeA | 3 ng/L | — |
| PFHxA | 4 ng/L | — |
What this report doesn't tell you
15 of the 27 contaminants a community water system normally reports do not appear anywhere in San Angelo, TX's data. Absent is not the same as absent-from-the-water — it means nobody published a number.
+Full detail: PFAS testing, water source, historical monitoring, and the federal violation record
PFAS — EPA UCMR5 (2023–2025)
1 PFAS compound approaching EPA limits in San Angelo, TX
The EPA finalized the first-ever federal drinking-water limits for six PFAS compounds in April 2024. These numbers come straight from EPA's UCMR5 lab dataset — every U.S. system serving more than 3,300 people tested every PFAS sample at an entry point to its distribution system. PFAS not listed below were either tested and not detected, or not yet sampled.
PFHxS (Perfluorohexane sulfonic acid)
● Approaching limit (97%)PFBA
● Detected (no federal limit)PFBS
● Detected (no federal limit)PFPeA
● Detected (no federal limit)PFHxA
● Detected (no federal limit)Where your water comes from · EPA SDWIS
San Angelo, TX's drinking water comes from ground water, drawn from 25 sources.
Source
- INTAKE 3 - LONE WOLF
- NASWORTHY 1 -
- INTAKE 2 - O C FISHER
- OH IVIE
- + 21 more
Treatment
- SWTP -1324 METCALFE ST
- HICKORY PLANT - 301 E AVENUE K
Distribution
Also buys water from COLORADO RIVER MUNICIPAL WATER DISTRICT.
Compliance history
Federal Safe Drinking Water Act violation & enforcement records (EPA SDWIS). A violation is a regulatory determination by the state or EPA — separate from the measured levels above.
- Maximum contaminant level exceededHealth-based5 violations on record · most recent Oct 2024resolved
- Other1 violation on record · most recent Jul 20251 open
Source: EPA SDWIS / ECHO. View the full federal record on EPA ECHO ↗