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Tap water quality report

West Plains, MO

EPA monitoring detected 20 contaminants across the 4 water suppliers serving West Plains. 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.

4
water suppliers
15,876
people served
20
contaminants found
Missouri rankings Lead in Missouri PFAS in Missouri

What was found in West Plains'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
1510 µg/L 15%
of the EPA limit 10000 µg/L
Main supplier: WEST PLAINS PWS · 12,864 people · 2019
4/4 SYR4
Copper
76.76 µg/L 5.9%
of the EPA limit 1300 µg/L
Main supplier: WEST PLAINS PWS · 12,864 people · 2019
Highest in the city: 176.09 µg/L — HOWELL OREGON 2 WEST · 1,170 people · 2019
4/4 SYR4
Barium
38.92 µg/L 1.9%
of the EPA limit 2000 µg/L
Main supplier: WEST PLAINS PWS · 12,864 people · 2019
4/4 SYR4
TTHM
30.54 µg/L 38%
of the EPA limit 80 µg/L
Main supplier: WEST PLAINS PWS · 12,864 people · 2019
1/4 SYR4
Total Haloacetic Acids (HAA5)
20.21 µg/L 34%
of the EPA limit 60 µg/L
Main supplier: WEST PLAINS PWS · 12,864 people · 2019
1/4 SYR4
Chloroform
18.565 µg/L
No EPA limit set
Main supplier: WEST PLAINS PWS · 12,864 people · 2019
1/4 SYR4
Lead
11.19 µg/L 75%
of the EPA limit 15 µg/L
Main supplier: WEST PLAINS PWS · 12,864 people · 2019
4/4 SYR4
Monochloroacetic Acid
9.3345 µg/L
No EPA limit set
Main supplier: WEST PLAINS PWS · 12,864 people · 2019
1/4 SYR4
Dichloroacetic Acid
7.482 µg/L
No EPA limit set
Main supplier: WEST PLAINS PWS · 12,864 people · 2019
1/4 SYR4
Bromodichloromethane
6.792 µg/L
No EPA limit set
Main supplier: WEST PLAINS PWS · 12,864 people · 2019
1/4 SYR4
Chromium
2.898 µg/L 2.9%
of the EPA limit 100 µg/L
Main supplier: WEST PLAINS PWS · 12,864 people · 2019
Highest in the city: 6.09 µg/L — HOWELL OREGON COUNTY PWSD 2 NORTH · 1,742 people · 2018
4/4 SYR4
Arsenic
5.286 µg/L 53%
of the EPA limit 10 µg/L
Highest in the city: HOWELL OREGON 2 WEST · 1,170 people · 2017
1/4 SYR4
Trichloroacetic Acid
4.8995 µg/L
No EPA limit set
Main supplier: WEST PLAINS PWS · 12,864 people · 2019
1/4 SYR4
Monobromoacetic Acid
4.79 µg/L
No EPA limit set
Main supplier: WEST PLAINS PWS · 12,864 people · 2019
1/4 SYR4
Dibromochloromethane
3.464 µg/L
No EPA limit set
Main supplier: WEST PLAINS PWS · 12,864 people · 2019
1/4 SYR4
Dibromoacetic Acid
2.408 µg/L
No EPA limit set
Main supplier: WEST PLAINS PWS · 12,864 people · 2019
1/4 SYR4
Combined Radium (-226 And -228)
2.275 pCi/L 45%
of the EPA limit 5 pCi/L
Highest in the city: HOWELL OREGON 2 WEST · 1,170 people · 2018
1/4 SYR4
Bromoform
1.077 µg/L
No EPA limit set
Main supplier: WEST PLAINS PWS · 12,864 people · 2019
1/4 SYR4
PFBS
0.0032 µg/L
No EPA limit set
Main supplier: WEST PLAINS PWS · 12,864 people · 2025
1/4 UCMR-5
Lead
0.0011 mg/L 7.5%
of the EPA limit 0.0150 mg/L
Main supplier: WEST PLAINS PWS · 12,864 people · 2025
Highest in the city: 0.0014 mg/L — HOWELL OREGON 2 WEST · 1,170 people · 2025
4/4 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 West Plains

SupplierPopulation served
WEST PLAINS PWS 12,864
HOWELL OREGON COUNTY PWSD 2 NORTH 1,742
HOWELL OREGON 2 WEST 1,170
HENRYS MHP 100

Frequently asked questions about West Plains tap water

Is West Plains tap water safe to drink?

EPA testing detected 20 contaminants in the water serving West Plains. 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 West Plains?

4 public water suppliers report drinking-water monitoring for West Plains, Missouri to the EPA. Each is listed above with its population served.

What contaminants are in West Plains's water?

The contaminants EPA monitoring detected in West Plains include Nitrate-Nitrite, Copper, Barium, TTHM, Total Haloacetic Acids (HAA5). 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.