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.
90
health-based violations
119
violations on file
2
still open
| Violation | Type | Status | Period |
|---|---|---|---|
| MCL | Health-based | Resolved | 2020-01-01 → 2020-03-31 |
| MCL | Health-based | Resolved | 2020-01-01 → 2020-03-31 |
| MCL | Health-based | Resolved | 2020-01-01 → 2020-03-31 |
| MCL | Health-based | Resolved | 2020-01-01 → 2020-03-31 |
| MCL | Health-based | Resolved | 2019-10-01 → 2019-12-31 |
| MCL | Health-based | Resolved | 2019-10-01 → 2019-12-31 |
| MCL | Health-based | Resolved | 2019-10-01 → 2019-12-31 |
| MCL | Health-based | Resolved | 2019-07-01 → 2019-09-30 |
| MCL | Health-based | Resolved | 2019-07-01 → 2019-09-30 |
| MCL | Health-based | Resolved | 2019-07-01 → 2019-09-30 |
PFAS detected
PFAS are industrial “forever chemicals”. These are the EPA's latest
nationwide test results (2023–2025).
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.
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Bromodichloromethane | 35.77 µg/L No EPA limit set
worst single sample: 38.4 µg/L | 87/87 | SYR4 | 2012–2019 |
| Chloroform | 83.55 µg/L No EPA limit set
worst single sample: 141 µg/L | 87/87 | SYR4 | 2012–2019 |
| Dibromochloromethane | 16.17 µg/L No EPA limit set
worst single sample: 36.6 µg/L | 87/87 | SYR4 | 2012–2019 |
| TTHM | 128.45 µg/L 161% of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 169 µg/L | 78/78 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 22.62 µg/L No EPA limit set
worst single sample: 34.8 µg/L | 73/74 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 34 µg/L No EPA limit set
worst single sample: 35.2 µg/L | 71/74 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 66.85 µg/L 111% of the EPA limit, at the 95th percentile of samples — 60 µg/L
worst single sample: 73.8 µg/L | 71/74 | SYR4 | 2012–2019 |
| Copper | 148.4 µg/L 11% of the EPA limit 1300 µg/L
worst single sample: 429 µg/L | 68/68 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 4.995 µg/L No EPA limit set
worst single sample: 10.4 µg/L | 44/74 | SYR4 | 2012–2019 |
| Bromoform | 7.3765 µg/L No EPA limit set
worst single sample: 7.97 µg/L | 38/87 | SYR4 | 2012–2019 |
| Monobromoacetic Acid | 14.42 µg/L No EPA limit set
worst single sample: 18.8 µg/L | 38/74 | SYR4 | 2012–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 21/21 | LCR | 2025 |
| Atrazine | 5.6285 µg/L 188% of the EPA limit, at the 95th percentile of samples — 3 µg/L
worst single sample: 5.79 µg/L | 18/33 | SYR4 | 2012–2019 |
| Lead | 3.243 µg/L 22% of the EPA limit 15 µg/L
worst single sample: 5.13 µg/L | 18/68 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 3490 µg/L 35% of the EPA limit 10000 µg/L | 16/16 | SYR4 | 2012–2019 |
| Barium | 368.2 µg/L 18% of the EPA limit 2000 µg/L
worst single sample: 511 µg/L | 8/8 | SYR4 | 2012–2019 |
| Fluoride | 746 µg/L 19% of the EPA limit 4000 µg/L
worst single sample: 760 µg/L | 8/8 | SYR4 | 2012–2019 |
| Arsenic | 7.2975 µg/L 73% of the EPA limit 10 µg/L
worst single sample: 8.77 µg/L | 6/8 | SYR4 | 2012–2019 |
| Chromium | 4.715 µg/L 4.7% of the EPA limit 100 µg/L
worst single sample: 5 µg/L | 6/8 | SYR4 | 2012–2019 |
| Simazine | 0.4270 µg/L 11% of the EPA limit 4 µg/L
worst single sample: 0.4300 µg/L | 3/33 | SYR4 | 2012–2019 |
| Lithium | 33.9 µg/L No EPA limit set | 3/4 | UCMR-5 | 2024 |
| 2,4-D | 0.2500 µg/L 0.4% of the EPA limit 70 µg/L | 1/10 | SYR4 | 2012–2019 |
| Antimony, Total | 1.39 µg/L 23% of the EPA limit 6 µg/L | 1/8 | SYR4 | 2012–2019 |
| Selenium | 19.7 µg/L 39% of the EPA limit 50 µg/L | 1/8 | SYR4 | 2012–2019 |
| Tetrachloroethylene | 1.56 µg/L 31% of the EPA limit 5 µg/L | 1/9 | SYR4 | 2012–2019 |
| Trichloroethylene | 2.89 µg/L 58% of the EPA limit 5 µg/L | 1/9 | SYR4 | 2012–2019 |
71 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-TP4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaBhc-GammaBenzeneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneCombined Radium (-226 And -228)DichloromethaneDalaponDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonochloroacetic AcidNetfosaaNfdhaNmefosaaOxamylPFBSPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramStyreneThallium, TotalTolueneToxapheneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene
Utility contact
Frequently asked questions about Boonville
Is Boonville tap water safe to drink?
EPA monitoring detected 28 contaminants in Boonville'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 Boonville's water?
EPA monitoring detected Bromodichloromethane, Chloroform, Dibromochloromethane, TTHM, Trichloroacetic Acid, and others. The full list with the level and data source for each is above.
How many people does Boonville serve?
Boonville reports serving 7,964 people in Missouri, per its EPA record.
Has Boonville had any water quality violations?
The EPA has 119 violations on file for Boonville, of which 90 are health-based (a contaminant limit or required treatment was breached) and 2 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.