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Tap water quality report

Desoto, MO

EPA monitoring detected 16 contaminants across the 3 water suppliers serving Desoto. 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
6,690
people served
16
contaminants found
Missouri rankings Lead in Missouri PFAS in Missouri

What was found in Desoto'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
Copper
180.89999999999978 µg/L 14%
of the EPA limit 1300 µg/L
Main supplier: DESOTO PWS · 6,400 people · 2019
Highest in the city: 240.7999999999998 µg/L — BAISCH NURSING CENTER · 80 people · 2018
3/3 SYR4
Barium
133.04999999999998 µg/L 6.7%
of the EPA limit 2000 µg/L
Main supplier: DESOTO PWS · 6,400 people · 2019
Highest in the city: 141.7 µg/L — BAISCH NURSING CENTER · 80 people · 2017
3/3 SYR4
Fluoride
130 µg/L 3.3%
of the EPA limit 4000 µg/L
Main supplier: DESOTO PWS · 6,400 people · 2019
2/3 SYR4
Chromium
8.0775 µg/L 8.1%
of the EPA limit 100 µg/L
Main supplier: DESOTO PWS · 6,400 people · 2019
3/3 SYR4
Lead
6.714999999999996 µg/L 45%
of the EPA limit 15 µg/L
Main supplier: DESOTO PWS · 6,400 people · 2019
3/3 SYR4
Gross Alpha, Excl. Radon And U
4.56 pCi/L 30%
of the EPA limit 15 pCi/L
Highest in the city: BAISCH NURSING CENTER · 80 people · 2019
1/3 SYR4
Cadmium
4.5525 µg/L 91%
of the EPA limit 5 µg/L
Main supplier: DESOTO PWS · 6,400 people · 2019
1/3 SYR4
TTHM
2.7030000000000003 µg/L 3.4%
of the EPA limit 80 µg/L
Main supplier: DESOTO PWS · 6,400 people · 2019
1/3 SYR4
Arsenic
1.37 µg/L 14%
of the EPA limit 10 µg/L
Main supplier: DESOTO PWS · 6,400 people · 2019
Highest in the city: 1.52 µg/L — BRIARWOOD UTILITIES · 210 people · 2017
3/3 SYR4
Dichloroacetic Acid
1.2455 µg/L
No EPA limit set
Main supplier: DESOTO PWS · 6,400 people · 2019
1/3 SYR4
Combined Radium (-226 And -228)
1.1 pCi/L 22%
of the EPA limit 5 pCi/L
Main supplier: DESOTO PWS · 6,400 people · 2016
1/3 SYR4
Bromodichloromethane
0.9825 µg/L
No EPA limit set
Main supplier: DESOTO PWS · 6,400 people · 2019
1/3 SYR4
Chloroform
0.9440 µg/L
No EPA limit set
Main supplier: DESOTO PWS · 6,400 people · 2019
1/3 SYR4
Dibromochloromethane
0.8310 µg/L
No EPA limit set
Main supplier: DESOTO PWS · 6,400 people · 2019
1/3 SYR4
Mercury
0.2100 µg/L 11%
of the EPA limit 2 µg/L
Main supplier: DESOTO PWS · 6,400 people · 2019
1/3 SYR4
Lead
0.0015 mg/L 9.7%
of the EPA limit 0.0150 mg/L
Main supplier: DESOTO PWS · 6,400 people · 2025
Highest in the city: 0.0077 mg/L — BRIARWOOD UTILITIES · 210 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 Desoto

SupplierPopulation served
DESOTO PWS 6,400
BRIARWOOD UTILITIES 210
BAISCH NURSING CENTER 80

Frequently asked questions about Desoto tap water

Is Desoto tap water safe to drink?

EPA testing detected 16 contaminants in the water serving Desoto. 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 Desoto?

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

What contaminants are in Desoto's water?

The contaminants EPA monitoring detected in Desoto include Copper, Barium, Fluoride, Chromium, Lead. 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.