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Tap water quality report

Smithville, MO

EPA monitoring detected 23 contaminants across the 2 water suppliers serving Smithville. 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.

2
water suppliers
13,350
people served
23
contaminants found
Missouri rankings Lead in Missouri PFAS in Missouri

What was found in Smithville'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
Chlorite
810 µg/L 81%
of the EPA limit 1000 µg/L
Main supplier: SMITHVILLE PWS · 10,885 people · 2019
1/2 SYR4
Nitrate-Nitrite
730 µg/L 7.3%
of the EPA limit 10000 µg/L
Main supplier: SMITHVILLE PWS · 10,885 people · 2019
1/2 SYR4
Fluoride
660 µg/L 17%
of the EPA limit 4000 µg/L
Main supplier: SMITHVILLE PWS · 10,885 people · 2019
1/2 SYR4
Copper
310 µg/L 24%
of the EPA limit 1300 µg/L
Main supplier: SMITHVILLE PWS · 10,885 people · 2019
2/2 SYR4
Barium
122.85 µg/L 6.1%
of the EPA limit 2000 µg/L
Main supplier: SMITHVILLE PWS · 10,885 people · 2019
1/2 SYR4
TTHM
84.52 µg/L 106%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
Main supplier: SMITHVILLE PWS · 10,885 people · 2019
2/2 SYR4
Chloroform
59.475 µg/L
No EPA limit set
Main supplier: SMITHVILLE PWS · 10,885 people · 2019
2/2 SYR4
Total Haloacetic Acids (HAA5)
59.175 µg/L 99%
of the EPA limit 60 µg/L
Main supplier: SMITHVILLE PWS · 10,885 people · 2019
2/2 SYR4
Dichloroacetic Acid
30.255 µg/L
No EPA limit set
Main supplier: SMITHVILLE PWS · 10,885 people · 2019
2/2 SYR4
Trichloroacetic Acid
23.66 µg/L
No EPA limit set
Main supplier: SMITHVILLE PWS · 10,885 people · 2019
2/2 SYR4
Bromodichloromethane
18.25 µg/L
No EPA limit set
Main supplier: SMITHVILLE PWS · 10,885 people · 2019
2/2 SYR4
Monochloroacetic Acid
15.095 µg/L
No EPA limit set
Main supplier: SMITHVILLE PWS · 10,885 people · 2019
1/2 SYR4
Lead
10.552 µg/L 70%
of the EPA limit 15 µg/L
Main supplier: SMITHVILLE PWS · 10,885 people · 2019
2/2 SYR4
Monobromoacetic Acid
9.3195 µg/L
No EPA limit set
Main supplier: SMITHVILLE PWS · 10,885 people · 2019
1/2 SYR4
Dibromochloromethane
7.066 µg/L
No EPA limit set
Main supplier: SMITHVILLE PWS · 10,885 people · 2019
1/2 SYR4
Chromium
2.872 µg/L 2.9%
of the EPA limit 100 µg/L
Main supplier: SMITHVILLE PWS · 10,885 people · 2019
1/2 SYR4
Dibromoacetic Acid
2.336 µg/L
No EPA limit set
Main supplier: SMITHVILLE PWS · 10,885 people · 2019
1/2 SYR4
Atrazine
1.18 µg/L 39%
of the EPA limit 3 µg/L
Main supplier: SMITHVILLE PWS · 10,885 people · 2019
1/2 SYR4
Arsenic
1.12 µg/L 11%
of the EPA limit 10 µg/L
Main supplier: SMITHVILLE PWS · 10,885 people · 2019
1/2 SYR4
Bromoform
0.8100 µg/L
No EPA limit set
Main supplier: SMITHVILLE PWS · 10,885 people · 2019
1/2 SYR4
Simazine
0.2000 µg/L 5%
of the EPA limit 4 µg/L
Main supplier: SMITHVILLE PWS · 10,885 people · 2019
1/2 SYR4
Pfba
0.0077 µg/L
No EPA limit set
Main supplier: SMITHVILLE PWS · 10,885 people · 2025
1/2 UCMR-5
Lead
0.0027 mg/L 18%
of the EPA limit 0.0150 mg/L
Main supplier: SMITHVILLE PWS · 10,885 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. 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 Smithville

SupplierPopulation served
SMITHVILLE PWS 10,885
CLAY COUNTY PWSD 9 2,465

Frequently asked questions about Smithville tap water

Is Smithville tap water safe to drink?

EPA testing detected 23 contaminants in the water serving Smithville. 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 Smithville?

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

What contaminants are in Smithville's water?

The contaminants EPA monitoring detected in Smithville include Chlorite, Nitrate-Nitrite, Fluoride, 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.