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Tap water quality report

Atascosa, TX

EPA monitoring detected 24 contaminants across the 1 water supplier serving Atascosa. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

1
water supplier
13,857
people served
24
contaminants found
Texas rankings Lead in Texas PFAS in Texas

What was found in Atascosa's water

The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
11100 µg/L 111%
of the EPA limit, at the 95th percentile of samples — 10000 µg/L
Main supplier: ATASCOSA RURAL WSC · 13,857 people · 2019
1/1 SYR4
Fluoride
2386 µg/L 60%
of the EPA limit 4000 µg/L
Main supplier: ATASCOSA RURAL WSC · 13,857 people · 2017
1/1 SYR4
Nitrate-Nitrite
1410 µg/L 14%
of the EPA limit 10000 µg/L
Main supplier: ATASCOSA RURAL WSC · 13,857 people · 2019
1/1 SYR4
Copper
647 µg/L 50%
of the EPA limit 1300 µg/L
Main supplier: ATASCOSA RURAL WSC · 13,857 people · 2019
1/1 SYR4
Barium
149.25 µg/L 7.5%
of the EPA limit 2000 µg/L
Main supplier: ATASCOSA RURAL WSC · 13,857 people · 2019
1/1 SYR4
Gross Alpha, Excl. Radon And U
17.35 pCi/L 116%
of the EPA limit, at the 95th percentile of samples — 15 pCi/L
Main supplier: ATASCOSA RURAL WSC · 13,857 people · 2019
1/1 SYR4
Lithium
13.6 µg/L
No EPA limit set
Main supplier: ATASCOSA RURAL WSC · 13,857 people · 2025
1/1 UCMR-5
TTHM
11.145 µg/L 14%
of the EPA limit 80 µg/L
Main supplier: ATASCOSA RURAL WSC · 13,857 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
10.375 µg/L 17%
of the EPA limit 60 µg/L
Main supplier: ATASCOSA RURAL WSC · 13,857 people · 2019
1/1 SYR4
Gross Beta Particle Activity
8.54 pCi/L
No EPA limit set
Main supplier: ATASCOSA RURAL WSC · 13,857 people · 2019
1/1 SYR4
Bromoform
6.54 µg/L
No EPA limit set
Main supplier: ATASCOSA RURAL WSC · 13,857 people · 2019
1/1 SYR4
Selenium
6.5 µg/L 13%
of the EPA limit 50 µg/L
Main supplier: ATASCOSA RURAL WSC · 13,857 people · 2019
1/1 SYR4
Dibromoacetic Acid
5.5 µg/L
No EPA limit set
Main supplier: ATASCOSA RURAL WSC · 13,857 people · 2019
1/1 SYR4
Chloroform
4.79 µg/L
No EPA limit set
Main supplier: ATASCOSA RURAL WSC · 13,857 people · 2019
1/1 SYR4
Lead
4.546 µg/L 30%
of the EPA limit 15 µg/L
Main supplier: ATASCOSA RURAL WSC · 13,857 people · 2019
1/1 SYR4
Combined Uranium
4.515 µg/L 15%
of the EPA limit 30 µg/L
Main supplier: ATASCOSA RURAL WSC · 13,857 people · 2019
1/1 SYR4
Combined Radium (-226 And -228)
4.3875 pCi/L 88%
of the EPA limit 5 pCi/L
Main supplier: ATASCOSA RURAL WSC · 13,857 people · 2019
1/1 SYR4
Dichloroacetic Acid
4.15 µg/L
No EPA limit set
Main supplier: ATASCOSA RURAL WSC · 13,857 people · 2019
1/1 SYR4
Dibromochloromethane
3.95 µg/L
No EPA limit set
Main supplier: ATASCOSA RURAL WSC · 13,857 people · 2019
1/1 SYR4
Bromodichloromethane
3.945 µg/L
No EPA limit set
Main supplier: ATASCOSA RURAL WSC · 13,857 people · 2019
1/1 SYR4
Thallium, Total
2.36 µg/L 118%
of the EPA limit, at the 95th percentile of samples — 2 µg/L
Main supplier: ATASCOSA RURAL WSC · 13,857 people · 2019
1/1 SYR4
Trichloroacetic Acid
2.1 µg/L
No EPA limit set
Main supplier: ATASCOSA RURAL WSC · 13,857 people · 2019
1/1 SYR4
Monobromoacetic Acid
1.1 µg/L
No EPA limit set
Main supplier: ATASCOSA RURAL WSC · 13,857 people · 2019
1/1 SYR4
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
Main supplier: ATASCOSA RURAL WSC · 13,857 people · 2025
1/1 LCR
Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of the system's samples — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Atascosa

SupplierPopulation served
ATASCOSA RURAL WSC 13,857

Frequently asked questions about Atascosa tap water

Is Atascosa tap water safe to drink?

EPA testing detected 24 contaminants in the water serving Atascosa. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Atascosa?

1 public water supplier report drinking-water monitoring for Atascosa, Texas to the EPA. Each is listed above with its population served.

What contaminants are in Atascosa's water?

The contaminants EPA monitoring detected in Atascosa include Nitrate, Fluoride, Nitrate-Nitrite, Copper, Barium. The full list, with the level at the main supplier and the data source, is in the table above.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.