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Tap water quality report

Bonne Terre

EPA monitoring tested this supplier for 101 contaminants and detected 20. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

101
contaminants tested
20
detected
3,537
people served
460
health-based violations
Missouri rankingsLead in MissouriPFAS in Missouri
Water source
Ground water
Ownership
Local government
Counties served
St. Francois

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

460
health-based violations
511
violations on file
1
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2016-10-01 → 2017-09-30
MCL Health-based Resolved 2016-10-01 → 2017-09-30
MCL Health-based Resolved 2016-10-01 → 2017-09-30
MCL Health-based Resolved 2016-10-01 → 2017-09-30
MCL Health-based Resolved 2016-07-01 → 2017-06-30
MCL Health-based Resolved 2016-07-01 → 2017-06-30
MCL Health-based Resolved 2016-07-01 → 2017-06-30
MCL Health-based Resolved 2016-07-01 → 2017-06-30
MCL Health-based Resolved 2016-04-01 → 2017-03-31
MCL Health-based Resolved 2016-04-01 → 2017-03-31

Other contaminants detected

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 this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
158.3 µg/L 12%
of the EPA limit 1300 µg/L
worst single sample: 351 µg/L
87/87 SYR4 2012–2018
Combined Radium (-226 And -228)
13.6 pCi/L 272%
of the EPA limit, at the 95th percentile of samples — 5 pCi/L
worst single sample: 14.2 pCi/L
52/60 SYR4 2012–2019
Gross Alpha, Excl. Radon And U
18.7 pCi/L 125%
of the EPA limit, at the 95th percentile of samples — 15 pCi/L
worst single sample: 21.5 pCi/L
51/58 SYR4 2012–2018
Lead
8.156 µg/L 54%
of the EPA limit 15 µg/L
worst single sample: 33.4 µg/L
32/87 SYR4 2012–2018
Lead
0.0129 mg/L 86%
of the EPA limit 0.0150 mg/L
 20/20 LCR 2024
Nitrate-Nitrite
360 µg/L 3.6%
of the EPA limit 10000 µg/L
 20/36 SYR4 2012–2019
Combined Uranium
1.77906 µg/L 5.9%
of the EPA limit 30 µg/L
worst single sample: 1.8178 µg/L
14/58 SYR4 2012–2018
Barium
62.34 µg/L 3.1%
of the EPA limit 2000 µg/L
worst single sample: 62.7 µg/L
7/7 SYR4 2012–2018
Bromodichloromethane
5.325 µg/L
No EPA limit set
worst single sample: 6.78 µg/L
7/13 SYR4 2012–2019
Chloroform
31.5 µg/L
No EPA limit set
worst single sample: 36.9 µg/L
7/13 SYR4 2012–2019
Dibromochloromethane
2.1675 µg/L
No EPA limit set
worst single sample: 2.5 µg/L
6/13 SYR4 2012–2019
TTHM
40.3 µg/L 50%
of the EPA limit 80 µg/L
worst single sample: 46.8 µg/L
6/7 SYR4 2013–2019
Chromium
5.662 µg/L 5.7%
of the EPA limit 100 µg/L
worst single sample: 5.7 µg/L
5/7 SYR4 2012–2018
Bromoform
0.5990 µg/L
No EPA limit set
worst single sample: 0.6000 µg/L
2/13 SYR4 2012–2019
Dichloroacetic Acid
7.415 µg/L
No EPA limit set
worst single sample: 7.67 µg/L
2/7 SYR4 2013–2019
Trichloroacetic Acid
2.676 µg/L
No EPA limit set
worst single sample: 2.76 µg/L
2/7 SYR4 2013–2019
Dibromoacetic Acid
1.33 µg/L
No EPA limit set
 1/7 SYR4 2013–2019
Fluoride
110 µg/L 2.8%
of the EPA limit 4000 µg/L
 1/7 SYR4 2012–2018
Total Haloacetic Acids (HAA5)
11.8 µg/L 20%
of the EPA limit 60 µg/L
 1/7 SYR4 2013–2019
Xylenes, Total
1.7 µg/L 0%
of the EPA limit 10000 µg/L
 1/7 SYR4 2012–2018
81 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
HUBBARD, BRANDON
Phone
573-358-2254

Frequently asked questions about Bonne Terre

Is Bonne Terre tap water safe to drink?

EPA monitoring detected 20 contaminants in Bonne Terre's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Bonne Terre's water?

EPA monitoring detected Copper, Combined Radium (-226 And -228), Gross Alpha, Excl. Radon And U, Lead, Lead, and others. The full list with the level and data source for each is above.

How many people does Bonne Terre serve?

Bonne Terre reports serving 3,537 people in Missouri, per its EPA record.

Has Bonne Terre had any water quality violations?

The EPA has 511 violations on file for Bonne Terre, of which 460 are health-based (a contaminant limit or required treatment was breached) and 1 remain open. The rest are monitoring or reporting failures.

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.