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Tap water quality report

ZIP 73402 — Ardmore, OK

EPA monitoring across the 2 water suppliers serving ZIP 73402 in Ardmore, OK detected 34 contaminants. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier below, with the EPA limit for each.

2
water suppliers
36,143
people served
34
contaminants found

What was found in ZIP 73402

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

ContaminantLevel vs EPA limitSuppliersSource
Nitrate-Nitrite
525 µg/L 5.3%
of the EPA limit 10000 µg/L
Main supplier: ARDMORE · 24,893 people · 2019
Highest in the ZIP: 2812.5 µg/L — SOUTHERN OKLA WATER CORP · 11,250 people · 2019
2/2 SYR4
Fluoride
390 µg/L 9.8%
of the EPA limit 4000 µg/L
Main supplier: ARDMORE · 24,893 people · 2013
Highest in the ZIP: 933.5 µg/L — SOUTHERN OKLA WATER CORP · 11,250 people · 2019
2/2 SYR4
Chlorite
824 µg/L 82%
of the EPA limit 1000 µg/L
Highest in the ZIP: SOUTHERN OKLA WATER CORP · 11,250 people · 2016
1/2 SYR4
Copper
77.545 µg/L 6%
of the EPA limit 1300 µg/L
Main supplier: ARDMORE · 24,893 people · 2019
Highest in the ZIP: 240.05 µg/L — SOUTHERN OKLA WATER CORP · 11,250 people · 2018
2/2 SYR4
TTHM
103.19 µg/L 129%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
Main supplier: ARDMORE · 24,893 people · 2019
Highest in the ZIP: 169.25 µg/L — SOUTHERN OKLA WATER CORP · 11,250 people · 2019
2/2 SYR4
Barium
62.8 µg/L 3.1%
of the EPA limit 2000 µg/L
Main supplier: ARDMORE · 24,893 people · 2013
Highest in the ZIP: 136 µg/L — SOUTHERN OKLA WATER CORP · 11,250 people · 2019
2/2 SYR4
Total Haloacetic Acids (HAA5)
73.96 µg/L 123%
of the EPA limit, at the 95th percentile of samples — 60 µg/L
Main supplier: ARDMORE · 24,893 people · 2019
Highest in the ZIP: 104.4 µg/L — SOUTHERN OKLA WATER CORP · 11,250 people · 2019
2/2 SYR4
Chloroform
86.515 µg/L
No EPA limit set
Main supplier: ARDMORE · 24,893 people · 2019
Highest in the ZIP: 97.31 µg/L — SOUTHERN OKLA WATER CORP · 11,250 people · 2019
2/2 SYR4
Trichloroacetic Acid
45.41 µg/L
No EPA limit set
Main supplier: ARDMORE · 24,893 people · 2019
Highest in the ZIP: 56.21 µg/L — SOUTHERN OKLA WATER CORP · 11,250 people · 2019
2/2 SYR4
Lithium
46.4 µg/L
No EPA limit set
Highest in the ZIP: SOUTHERN OKLA WATER CORP · 11,250 people · 2025
1/2 UCMR-5
Dichloroacetic Acid
29.55 µg/L
No EPA limit set
Main supplier: ARDMORE · 24,893 people · 2019
Highest in the ZIP: 45.81 µg/L — SOUTHERN OKLA WATER CORP · 11,250 people · 2019
2/2 SYR4
Bromodichloromethane
22.145 µg/L
No EPA limit set
Main supplier: ARDMORE · 24,893 people · 2019
Highest in the ZIP: 40.44 µg/L — SOUTHERN OKLA WATER CORP · 11,250 people · 2019
2/2 SYR4
Lead
4.361 µg/L 29%
of the EPA limit 15 µg/L
Main supplier: ARDMORE · 24,893 people · 2019
Highest in the ZIP: 30.54 µg/L — SOUTHERN OKLA WATER CORP · 11,250 people · 2018
2/2 SYR4
Dibromochloromethane
16.44 µg/L
No EPA limit set
Main supplier: ARDMORE · 24,893 people · 2019
Highest in the ZIP: 28.04 µg/L — SOUTHERN OKLA WATER CORP · 11,250 people · 2019
2/2 SYR4
Gross Alpha, Excl. Radon And U
1.6765 pCi/L 11%
of the EPA limit 15 pCi/L
Main supplier: ARDMORE · 24,893 people · 2019
Highest in the ZIP: 9.64 pCi/L — SOUTHERN OKLA WATER CORP · 11,250 people · 2019
2/2 SYR4
Gross Beta Particle Activity
6.4705 pCi/L
No EPA limit set
Main supplier: ARDMORE · 24,893 people · 2019
Highest in the ZIP: 7.316 pCi/L — SOUTHERN OKLA WATER CORP · 11,250 people · 2019
2/2 SYR4
Bromoform
1.745 µg/L
No EPA limit set
Main supplier: ARDMORE · 24,893 people · 2019
Highest in the ZIP: 7.055 µg/L — SOUTHERN OKLA WATER CORP · 11,250 people · 2019
2/2 SYR4
Monochloroacetic Acid
3.39 µg/L
No EPA limit set
Main supplier: ARDMORE · 24,893 people · 2019
Highest in the ZIP: 6.74 µg/L — SOUTHERN OKLA WATER CORP · 11,250 people · 2019
2/2 SYR4
Dibromoacetic Acid
3.8915 µg/L
No EPA limit set
Main supplier: ARDMORE · 24,893 people · 2019
Highest in the ZIP: 6.296 µg/L — SOUTHERN OKLA WATER CORP · 11,250 people · 2019
2/2 SYR4
Combined Uranium
1.68 µg/L 5.6%
of the EPA limit 30 µg/L
Main supplier: ARDMORE · 24,893 people · 2019
Highest in the ZIP: 4.673 µg/L — SOUTHERN OKLA WATER CORP · 11,250 people · 2019
2/2 SYR4
Arsenic
4.622 µg/L 46%
of the EPA limit 10 µg/L
Highest in the ZIP: SOUTHERN OKLA WATER CORP · 11,250 people · 2019
1/2 SYR4
Chromium
3.95 µg/L 4%
of the EPA limit 100 µg/L
Highest in the ZIP: SOUTHERN OKLA WATER CORP · 11,250 people · 2019
1/2 SYR4
Monobromoacetic Acid
1.404 µg/L
No EPA limit set
Main supplier: ARDMORE · 24,893 people · 2019
Highest in the ZIP: 3.2585 µg/L — SOUTHERN OKLA WATER CORP · 11,250 people · 2019
2/2 SYR4
Combined Radium (-226 And -228)
3.2225 pCi/L 64%
of the EPA limit 5 pCi/L
Highest in the ZIP: SOUTHERN OKLA WATER CORP · 11,250 people · 2019
1/2 SYR4
Selenium
1 µg/L 2%
of the EPA limit 50 µg/L
Highest in the ZIP: SOUTHERN OKLA WATER CORP · 11,250 people · 2019
1/2 SYR4
Toluene
0.9345 µg/L 0.1%
of the EPA limit 1000 µg/L
Highest in the ZIP: SOUTHERN OKLA WATER CORP · 11,250 people · 2019
1/2 SYR4
Dichloromethane
0.6000 µg/L 12%
of the EPA limit 5 µg/L
Main supplier: ARDMORE · 24,893 people · 2018
1/2 SYR4
Mercury
0.2140 µg/L 11%
of the EPA limit 2 µg/L
Highest in the ZIP: SOUTHERN OKLA WATER CORP · 11,250 people · 2019
1/2 SYR4
2,4-D
0.1600 µg/L 0.2%
of the EPA limit 70 µg/L
Main supplier: ARDMORE · 24,893 people · 2019
1/2 SYR4
6:2 Fts
0.0112 µg/L
No EPA limit set
Highest in the ZIP: SOUTHERN OKLA WATER CORP · 11,250 people · 2025
1/2 UCMR-5
Pfba
0.0064 µg/L
No EPA limit set
Highest in the ZIP: SOUTHERN OKLA WATER CORP · 11,250 people · 2025
1/2 UCMR-5
Pfpea
0.0052 µg/L
No EPA limit set
Highest in the ZIP: SOUTHERN OKLA WATER CORP · 11,250 people · 2025
1/2 UCMR-5
Pfhxa
0.0034 µg/L
No EPA limit set
Highest in the ZIP: SOUTHERN OKLA WATER CORP · 11,250 people · 2025
1/2 UCMR-5
Lead
0.00067 mg/L 4.5%
of the EPA limit 0.0150 mg/L
Main supplier: ARDMORE · 24,893 people · 2026
Highest in the ZIP: 0.0029 mg/L — SOUTHERN OKLA WATER CORP · 11,250 people · 2024
2/2 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.

Water suppliers serving ZIP 73402

SupplierStatePopulation served
ARDMORE OK 24,893
SOUTHERN OKLA WATER CORP OK 11,250

Frequently asked questions about ZIP 73402 tap water

Is the tap water in ZIP 73402 safe to drink?

EPA testing detected 34 contaminants across the water suppliers serving ZIP 73402. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.

Which water suppliers serve ZIP 73402?

2 public water suppliers report EPA drinking-water monitoring for ZIP 73402. Each is listed above with its population served.

What contaminants are in ZIP 73402's water?

EPA monitoring detected Nitrate-Nitrite, Fluoride, Chlorite, Copper, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.