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Tap water quality report

Lexington, MO

EPA monitoring detected 22 contaminants across the 1 water supplier serving Lexington. 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.

1
water supplier
4,729
people served
22
contaminants found
Missouri rankings Lead in Missouri PFAS in Missouri

What was found in Lexington'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
3210 µg/L 32%
of the EPA limit 10000 µg/L
Main supplier: LEXINGTON PWS · 4,729 people · 2019
1/1 SYR4
Copper
593.9 µg/L 46%
of the EPA limit 1300 µg/L
Main supplier: LEXINGTON PWS · 4,729 people · 2019
1/1 SYR4
Fluoride
435.49999999999994 µg/L 11%
of the EPA limit 4000 µg/L
Main supplier: LEXINGTON PWS · 4,729 people · 2019
1/1 SYR4
TTHM
75.59499999999997 µg/L 94%
of the EPA limit 80 µg/L
Main supplier: LEXINGTON PWS · 4,729 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
63.15999999999995 µg/L 105%
of the EPA limit, at the 95th percentile of samples — 60 µg/L
Main supplier: LEXINGTON PWS · 4,729 people · 2019
1/1 SYR4
Barium
61.86999999999999 µg/L 3.1%
of the EPA limit 2000 µg/L
Main supplier: LEXINGTON PWS · 4,729 people · 2019
1/1 SYR4
Chloroform
49.8 µg/L
No EPA limit set
Main supplier: LEXINGTON PWS · 4,729 people · 2019
1/1 SYR4
Dichloroacetic Acid
37.5 µg/L
No EPA limit set
Main supplier: LEXINGTON PWS · 4,729 people · 2019
1/1 SYR4
Monochloroacetic Acid
33.22 µg/L
No EPA limit set
Main supplier: LEXINGTON PWS · 4,729 people · 2019
1/1 SYR4
Bromodichloromethane
23.400000000000002 µg/L
No EPA limit set
Main supplier: LEXINGTON PWS · 4,729 people · 2019
1/1 SYR4
Lithium
22.4 µg/L
No EPA limit set
Main supplier: LEXINGTON PWS · 4,729 people · 2025
1/1 UCMR-5
Trichloroacetic Acid
20.420000000000005 µg/L
No EPA limit set
Main supplier: LEXINGTON PWS · 4,729 people · 2019
1/1 SYR4
Dibromochloromethane
15.989999999999998 µg/L
No EPA limit set
Main supplier: LEXINGTON PWS · 4,729 people · 2019
1/1 SYR4
Monobromoacetic Acid
12.3 µg/L
No EPA limit set
Main supplier: LEXINGTON PWS · 4,729 people · 2019
1/1 SYR4
Lead
8.612999999999992 µg/L 57%
of the EPA limit 15 µg/L
Main supplier: LEXINGTON PWS · 4,729 people · 2019
1/1 SYR4
Dibromoacetic Acid
7.558999999999999 µg/L
No EPA limit set
Main supplier: LEXINGTON PWS · 4,729 people · 2019
1/1 SYR4
Atrazine
3.4679999999999995 µg/L 116%
of the EPA limit, at the 95th percentile of samples — 3 µg/L
Main supplier: LEXINGTON PWS · 4,729 people · 2019
1/1 SYR4
Bromoform
3.17 µg/L
No EPA limit set
Main supplier: LEXINGTON PWS · 4,729 people · 2019
1/1 SYR4
Chromium
2.5949999999999998 µg/L 2.6%
of the EPA limit 100 µg/L
Main supplier: LEXINGTON PWS · 4,729 people · 2019
1/1 SYR4
Arsenic
2.44 µg/L 24%
of the EPA limit 10 µg/L
Main supplier: LEXINGTON PWS · 4,729 people · 2019
1/1 SYR4
Mercury
0.6800 µg/L 34%
of the EPA limit 2 µg/L
Main supplier: LEXINGTON PWS · 4,729 people · 2019
1/1 SYR4
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
Main supplier: LEXINGTON PWS · 4,729 people · 2024
1/1 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 Lexington

SupplierPopulation served
LEXINGTON PWS 4,729

Frequently asked questions about Lexington tap water

Is Lexington tap water safe to drink?

EPA testing detected 22 contaminants in the water serving Lexington. 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 Lexington?

1 public water supplier report drinking-water monitoring for Lexington, Missouri to the EPA. Each is listed above with its population served.

What contaminants are in Lexington's water?

The contaminants EPA monitoring detected in Lexington include Nitrate-Nitrite, Copper, Fluoride, 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.