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Tap water quality report

Lebanon, MO

EPA monitoring detected 16 contaminants across the 4 water suppliers serving Lebanon. 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
30,087
people served
16
contaminants found
Missouri rankings Lead in Missouri PFAS in Missouri

What was found in Lebanon'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
1533 µg/L 15%
of the EPA limit 10000 µg/L
Main supplier: LEBANON PWS · 15,442 people · 2019
3/4 SYR4
Fluoride
1324 µg/L 33%
of the EPA limit 4000 µg/L
Main supplier: LEBANON PWS · 15,442 people · 2019
1/4 SYR4
Barium
450 µg/L 23%
of the EPA limit 2000 µg/L
Main supplier: LEBANON PWS · 15,442 people · 2019
Highest in the city: 524 µg/L — LACLEDE COUNTY PWSD 3 · 6,075 people · 2019
3/4 SYR4
Copper
55.745 µg/L 4.3%
of the EPA limit 1300 µg/L
Main supplier: LEBANON PWS · 15,442 people · 2019
Highest in the city: 86.7 µg/L — LACLEDE COUNTY PWSD 1 · 8,550 people · 2019
3/4 SYR4
Thallium, Total
17.086 µg/L 854%
of the EPA limit, at the 95th percentile of samples — 2 µg/L
Main supplier: LEBANON PWS · 15,442 people · 2019
1/4 SYR4
Lead
6.272 µg/L 42%
of the EPA limit 15 µg/L
Main supplier: LEBANON PWS · 15,442 people · 2019
Highest in the city: 6.9135 µg/L — LACLEDE COUNTY PWSD 1 · 8,550 people · 2019
3/4 SYR4
TTHM
5.404 µg/L 6.8%
of the EPA limit 80 µg/L
Main supplier: LEBANON PWS · 15,442 people · 2019
1/4 SYR4
Chromium
3.482 µg/L 3.5%
of the EPA limit 100 µg/L
Main supplier: LEBANON PWS · 15,442 people · 2019
Highest in the city: 4.628 µg/L — LACLEDE COUNTY PWSD 1 · 8,550 people · 2019
3/4 SYR4
Cadmium
2.19 µg/L 44%
of the EPA limit 5 µg/L
Highest in the city: LACLEDE COUNTY PWSD 3 · 6,075 people · 2019
1/4 SYR4
Combined Radium (-226 And -228)
2.08 pCi/L 42%
of the EPA limit 5 pCi/L
Main supplier: LEBANON PWS · 15,442 people · 2015
1/4 SYR4
Arsenic
1.95 µg/L 20%
of the EPA limit 10 µg/L
Main supplier: LEBANON PWS · 15,442 people · 2019
1/4 SYR4
Chloroform
1.85 µg/L
No EPA limit set
Main supplier: LEBANON PWS · 15,442 people · 2019
2/4 SYR4
Bromodichloromethane
1.79 µg/L
No EPA limit set
Main supplier: LEBANON PWS · 15,442 people · 2019
2/4 SYR4
Dibromochloromethane
1.312 µg/L
No EPA limit set
Main supplier: LEBANON PWS · 15,442 people · 2019
1/4 SYR4
Bromoform
0.6360 µg/L
No EPA limit set
Main supplier: LEBANON PWS · 15,442 people · 2019
1/4 SYR4
Lead
0.0019 mg/L 13%
of the EPA limit 0.0150 mg/L
Main supplier: LEBANON PWS · 15,442 people · 2024
Highest in the city: 0.0056 mg/L — PLAZA PARK ESTATES MHP · 20 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 Lebanon

SupplierPopulation served
LEBANON PWS 15,442
LACLEDE COUNTY PWSD 1 8,550
LACLEDE COUNTY PWSD 3 6,075
PLAZA PARK ESTATES MHP 20

Frequently asked questions about Lebanon tap water

Is Lebanon tap water safe to drink?

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

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

What contaminants are in Lebanon's water?

The contaminants EPA monitoring detected in Lebanon include Nitrate-Nitrite, Fluoride, Barium, Copper, Thallium, Total. 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.