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Tap water quality report

Altus, OK

EPA monitoring detected 21 contaminants across the 3 water suppliers serving Altus. 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.

3
water suppliers
23,564
people served
21
contaminants found
Oklahoma rankings Lead in Oklahoma PFAS in Oklahoma

What was found in Altus'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-Nitrite
2959 µg/L 30%
of the EPA limit 10000 µg/L
Main supplier: ALTUS · 18,717 people · 2019
1/3 SYR4
Chlorite
996.75 µg/L 100%
of the EPA limit 1000 µg/L
Main supplier: ALTUS · 18,717 people · 2019
1/3 SYR4
Copper
630.6 µg/L 49%
of the EPA limit 1300 µg/L
Main supplier: ALTUS · 18,717 people · 2018
Highest in the city: 730 µg/L — ALTUS AFB · 4,617 people · 2018
3/3 SYR4
Fluoride
685 µg/L 17%
of the EPA limit 4000 µg/L
Main supplier: ALTUS · 18,717 people · 2019
1/3 SYR4
TTHM
211.45 µg/L 264%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
Main supplier: ALTUS · 18,717 people · 2019
Highest in the city: 219.4 µg/L — ALTUS AFB · 4,617 people · 2019
3/3 SYR4
Nitrate
210 µg/L 2.1%
of the EPA limit 10000 µg/L
Main supplier: ALTUS · 18,717 people · 2013
1/3 SYR4
Lead
97.6 µg/L 651%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
Main supplier: ALTUS · 18,717 people · 2018
3/3 SYR4
Bromoform
90.62 µg/L
No EPA limit set
Main supplier: ALTUS · 18,717 people · 2019
3/3 SYR4
Dibromochloromethane
82.66 µg/L
No EPA limit set
Main supplier: ALTUS · 18,717 people · 2019
3/3 SYR4
Total Haloacetic Acids (HAA5)
43.615 µg/L 73%
of the EPA limit 60 µg/L
Main supplier: ALTUS · 18,717 people · 2019
Highest in the city: 53.36 µg/L — ALTUS AFB · 4,617 people · 2019
3/3 SYR4
Bromodichloromethane
46.37 µg/L
No EPA limit set
Main supplier: ALTUS · 18,717 people · 2019
Highest in the city: 52.145 µg/L — ALTUS AFB · 4,617 people · 2019
3/3 SYR4
Chloroform
36.95 µg/L
No EPA limit set
Main supplier: ALTUS · 18,717 people · 2019
Highest in the city: 50.3 µg/L — ALTUS AFB · 4,617 people · 2019
3/3 SYR4
Dibromoacetic Acid
26.6 µg/L
No EPA limit set
Main supplier: ALTUS · 18,717 people · 2019
Highest in the city: 35.86 µg/L — ALTUS AFB · 4,617 people · 2019
3/3 SYR4
Trichloroacetic Acid
15.264 µg/L
No EPA limit set
Main supplier: ALTUS · 18,717 people · 2019
3/3 SYR4
Dichloroacetic Acid
13.8 µg/L
No EPA limit set
Main supplier: ALTUS · 18,717 people · 2019
3/3 SYR4
Lithium
11.5 µg/L
No EPA limit set
Main supplier: ALTUS · 18,717 people · 2025
1/3 UCMR-5
Monobromoacetic Acid
7.7825 µg/L
No EPA limit set
Main supplier: ALTUS · 18,717 people · 2019
Highest in the city: 9.94 µg/L — CRETA WATER CORPORATION · 230 people · 2019
3/3 SYR4
Monochloroacetic Acid
5.749 µg/L
No EPA limit set
Main supplier: ALTUS · 18,717 people · 2019
3/3 SYR4
Pfba
0.0055 µg/L
No EPA limit set
Main supplier: ALTUS · 18,717 people · 2025
Highest in the city: 0.0059 µg/L — ALTUS AFB · 4,617 people · 2023
2/3 UCMR-5
PFHXS
0.0033 µg/L
No EPA limit set
Main supplier: ALTUS · 18,717 people · 2025
1/3 UCMR-5
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: ALTUS · 18,717 people · 2024
Highest in the city: 0.00091 mg/L — CRETA WATER CORPORATION · 230 people · 2024
3/3 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 Altus

SupplierPopulation served
ALTUS 18,717
ALTUS AFB 4,617
CRETA WATER CORPORATION 230

Frequently asked questions about Altus tap water

Is Altus tap water safe to drink?

EPA testing detected 21 contaminants in the water serving Altus. 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 Altus?

3 public water suppliers report drinking-water monitoring for Altus, Oklahoma to the EPA. Each is listed above with its population served.

What contaminants are in Altus's water?

The contaminants EPA monitoring detected in Altus include Nitrate-Nitrite, Chlorite, Copper, Fluoride, TTHM. 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.