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Tap water quality report

Bonne Terre, MO

EPA monitoring detected 20 contaminants across the 3 water suppliers serving Bonne Terre. 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
7,085
people served
20
contaminants found
Missouri rankings Lead in Missouri PFAS in Missouri

What was found in Bonne Terre'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
360 µg/L 3.6%
of the EPA limit 10000 µg/L
Main supplier: BONNE TERRE PWS · 3,537 people · 2019
Highest in the city: 640 µg/L — BONNE TERRE PRISON · 3,500 people · 2019
3/3 SYR4
Copper
158.3 µg/L 12%
of the EPA limit 1300 µg/L
Main supplier: BONNE TERRE PWS · 3,537 people · 2018
Highest in the city: 181.6 µg/L — BONNE TERRE PRISON · 3,500 people · 2018
3/3 SYR4
Fluoride
110 µg/L 2.8%
of the EPA limit 4000 µg/L
Main supplier: BONNE TERRE PWS · 3,537 people · 2018
3/3 SYR4
Barium
62.34 µg/L 3.1%
of the EPA limit 2000 µg/L
Main supplier: BONNE TERRE PWS · 3,537 people · 2018
3/3 SYR4
TTHM
40.3 µg/L 50%
of the EPA limit 80 µg/L
Main supplier: BONNE TERRE PWS · 3,537 people · 2019
1/3 SYR4
Chloroform
31.5 µg/L
No EPA limit set
Main supplier: BONNE TERRE PWS · 3,537 people · 2019
2/3 SYR4
Gross Alpha, Excl. Radon And U
18.7 pCi/L 125%
of the EPA limit, at the 95th percentile of samples — 15 pCi/L
Main supplier: BONNE TERRE PWS · 3,537 people · 2018
1/3 SYR4
Lead
8.156 µg/L 54%
of the EPA limit 15 µg/L
Main supplier: BONNE TERRE PWS · 3,537 people · 2018
Highest in the city: 17.245 µg/L — BONNE TERRE PRISON · 3,500 people · 2018
3/3 SYR4
Combined Radium (-226 And -228)
13.6 pCi/L 272%
of the EPA limit, at the 95th percentile of samples — 5 pCi/L
Main supplier: BONNE TERRE PWS · 3,537 people · 2019
3/3 SYR4
Total Haloacetic Acids (HAA5)
11.8 µg/L 20%
of the EPA limit 60 µg/L
Main supplier: BONNE TERRE PWS · 3,537 people · 2019
1/3 SYR4
Dichloroacetic Acid
7.415 µg/L
No EPA limit set
Main supplier: BONNE TERRE PWS · 3,537 people · 2019
1/3 SYR4
Chromium
5.662 µg/L 5.7%
of the EPA limit 100 µg/L
Main supplier: BONNE TERRE PWS · 3,537 people · 2018
3/3 SYR4
Bromodichloromethane
5.325 µg/L
No EPA limit set
Main supplier: BONNE TERRE PWS · 3,537 people · 2019
1/3 SYR4
Trichloroacetic Acid
2.676 µg/L
No EPA limit set
Main supplier: BONNE TERRE PWS · 3,537 people · 2019
1/3 SYR4
Dibromochloromethane
2.1675 µg/L
No EPA limit set
Main supplier: BONNE TERRE PWS · 3,537 people · 2019
1/3 SYR4
Combined Uranium
1.77906 µg/L 5.9%
of the EPA limit 30 µg/L
Main supplier: BONNE TERRE PWS · 3,537 people · 2018
1/3 SYR4
Xylenes, Total
1.7 µg/L 0%
of the EPA limit 10000 µg/L
Main supplier: BONNE TERRE PWS · 3,537 people · 2018
1/3 SYR4
Dibromoacetic Acid
1.33 µg/L
No EPA limit set
Main supplier: BONNE TERRE PWS · 3,537 people · 2019
1/3 SYR4
Bromoform
0.5990 µg/L
No EPA limit set
Main supplier: BONNE TERRE PWS · 3,537 people · 2019
1/3 SYR4
Lead
0.0129 mg/L 86%
of the EPA limit 0.0150 mg/L
Main supplier: BONNE TERRE PWS · 3,537 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 Bonne Terre

SupplierPopulation served
BONNE TERRE PWS 3,537
BONNE TERRE PRISON 3,500
BIG RIVER HILLS LLC 48

Frequently asked questions about Bonne Terre tap water

Is Bonne Terre tap water safe to drink?

EPA testing detected 20 contaminants in the water serving Bonne Terre. 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 Bonne Terre?

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

What contaminants are in Bonne Terre's water?

The contaminants EPA monitoring detected in Bonne Terre include Nitrate-Nitrite, Copper, Fluoride, Barium, TTHM. 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.