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Tap water quality report

Lake Ozark, MO

EPA monitoring detected 15 contaminants across the 4 water suppliers serving Lake Ozark. 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
12,034
people served
15
contaminants found
Missouri rankings Lead in Missouri PFAS in Missouri

What was found in Lake Ozark'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
Fluoride
862 µg/L 22%
of the EPA limit 4000 µg/L
Main supplier: CAMDEN COUNTY PWSD 4 HORSESHOE BEND · 7,912 people · 2018
3/4 SYR4
Barium
258.6 µg/L 13%
of the EPA limit 2000 µg/L
Main supplier: CAMDEN COUNTY PWSD 4 HORSESHOE BEND · 7,912 people · 2018
Highest in the city: 272.408 µg/L — HIDDEN OAKS ESTATES · 50 people · 2019
4/4 SYR4
Copper
217.7 µg/L 17%
of the EPA limit 1300 µg/L
Main supplier: CAMDEN COUNTY PWSD 4 HORSESHOE BEND · 7,912 people · 2018
4/4 SYR4
Nitrate-Nitrite
116.5 µg/L 1.2%
of the EPA limit 10000 µg/L
Main supplier: CAMDEN COUNTY PWSD 4 HORSESHOE BEND · 7,912 people · 2019
Highest in the city: 190 µg/L — LAKE OZARK PWS · 2,007 people · 2019
4/4 SYR4
Gross Alpha, Excl. Radon And U
15.1 pCi/L 101%
of the EPA limit, at the 95th percentile of samples — 15 pCi/L
Main supplier: CAMDEN COUNTY PWSD 4 HORSESHOE BEND · 7,912 people · 2014
1/4 SYR4
Lithium
11.7 µg/L
No EPA limit set
Main supplier: CAMDEN COUNTY PWSD 4 HORSESHOE BEND · 7,912 people · 2023
1/4 UCMR-5
TTHM
9 µg/L 11%
of the EPA limit 80 µg/L
Main supplier: CAMDEN COUNTY PWSD 4 HORSESHOE BEND · 7,912 people · 2019
1/4 SYR4
Lead
4.121 µg/L 27%
of the EPA limit 15 µg/L
Main supplier: CAMDEN COUNTY PWSD 4 HORSESHOE BEND · 7,912 people · 2018
Highest in the city: 8.939 µg/L — HIDDEN OAKS ESTATES · 50 people · 2019
4/4 SYR4
Chromium
1.724 µg/L 1.7%
of the EPA limit 100 µg/L
Main supplier: CAMDEN COUNTY PWSD 4 HORSESHOE BEND · 7,912 people · 2018
Highest in the city: 5.223 µg/L — HIDDEN OAKS ESTATES · 50 people · 2019
3/4 SYR4
Combined Radium (-226 And -228)
4.475 pCi/L 89%
of the EPA limit 5 pCi/L
Main supplier: CAMDEN COUNTY PWSD 4 HORSESHOE BEND · 7,912 people · 2017
2/4 SYR4
Dibromochloromethane
3.06 µg/L
No EPA limit set
Main supplier: CAMDEN COUNTY PWSD 4 HORSESHOE BEND · 7,912 people · 2019
1/4 SYR4
Bromodichloromethane
2.7705 µg/L
No EPA limit set
Main supplier: CAMDEN COUNTY PWSD 4 HORSESHOE BEND · 7,912 people · 2019
1/4 SYR4
Chloroform
2.166 µg/L
No EPA limit set
Main supplier: CAMDEN COUNTY PWSD 4 HORSESHOE BEND · 7,912 people · 2019
1/4 SYR4
Bromoform
0.8000 µg/L
No EPA limit set
Main supplier: CAMDEN COUNTY PWSD 4 HORSESHOE BEND · 7,912 people · 2019
1/4 SYR4
Lead
0.0017 mg/L 11%
of the EPA limit 0.0150 mg/L
Main supplier: CAMDEN COUNTY PWSD 4 HORSESHOE BEND · 7,912 people · 2024
Highest in the city: 0.0076 mg/L — CAMDEN COUNTY PWSD #4 SHAWNEE BEND · 2,065 people · 2024
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 Lake Ozark

SupplierPopulation served
CAMDEN COUNTY PWSD 4 HORSESHOE BEND 7,912
CAMDEN COUNTY PWSD #4 SHAWNEE BEND 2,065
LAKE OZARK PWS 2,007
HIDDEN OAKS ESTATES 50

Frequently asked questions about Lake Ozark tap water

Is Lake Ozark tap water safe to drink?

EPA testing detected 15 contaminants in the water serving Lake Ozark. 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 Lake Ozark?

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

What contaminants are in Lake Ozark's water?

The contaminants EPA monitoring detected in Lake Ozark include Fluoride, Barium, Copper, Nitrate-Nitrite, Gross Alpha, Excl. Radon And U. 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.