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.
| Violation | Type | Status | Period |
|---|---|---|---|
| MCL | Health-based | Resolved | 2015-07-01 → 2015-09-30 |
| MCL | Health-based | Resolved | 2015-07-01 → 2015-09-30 |
| MCL | Health-based | Resolved | 2015-07-01 → 2015-09-30 |
| MCL | Health-based | Resolved | 2015-07-01 → 2015-09-30 |
| MCL | Health-based | Resolved | 2015-07-01 → 2015-09-30 |
| MCL | Health-based | Resolved | 2015-04-01 → 2015-06-30 |
| MCL | Health-based | Resolved | 2015-04-01 → 2015-06-30 |
| MCL | Health-based | Resolved | 2015-04-01 → 2015-06-30 |
| MCL | Health-based | Resolved | 2015-04-01 → 2015-06-30 |
| MCL | Health-based | Resolved | 2015-04-01 → 2015-06-30 |
PFAS detected
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFOS | 0.0048 µg/L | 2/4 | 2024 |
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Total Haloacetic Acids (HAA5) | 43.3 µg/L 72% of the EPA limit 60 µg/L
worst single sample: 53 µg/L | 59/59 | SYR4 | 2012–2019 |
| TTHM | 120 µg/L 150% of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 140 µg/L | 58/58 | SYR4 | 2012–2019 |
| Bromodichloromethane | 29 µg/L No EPA limit set
worst single sample: 32 µg/L | 55/55 | SYR4 | 2013–2019 |
| Chloroform | 80.3 µg/L No EPA limit set
worst single sample: 100 µg/L | 55/55 | SYR4 | 2013–2019 |
| Dibromochloromethane | 11 µg/L No EPA limit set
worst single sample: 14 µg/L | 55/55 | SYR4 | 2013–2019 |
| Dichloroacetic Acid | 21.35 µg/L No EPA limit set
worst single sample: 27 µg/L | 54/54 | SYR4 | 2013–2019 |
| Trichloroacetic Acid | 26 µg/L No EPA limit set
worst single sample: 31 µg/L | 54/54 | SYR4 | 2013–2019 |
| Copper | 128.11 µg/L 9.9% of the EPA limit 1300 µg/L
worst single sample: 187 µg/L | 22/60 | SYR4 | 2014–2019 |
| Dibromoacetic Acid | 3.045 µg/L No EPA limit set
worst single sample: 3.3 µg/L | 18/54 | SYR4 | 2013–2019 |
| Lead | 0.00090 mg/L 6% of the EPA limit 0.0150 mg/L | 13/13 | LCR | 2025 |
| Monochloroacetic Acid | 2.95 µg/L No EPA limit set
worst single sample: 3 µg/L | 6/54 | SYR4 | 2013–2019 |
| Lead | 6.15 µg/L 41% of the EPA limit 15 µg/L
worst single sample: 6.3 µg/L | 4/62 | SYR4 | 2014–2019 |
| Bromoform | 1.1 µg/L No EPA limit set | 1/55 | SYR4 | 2013–2019 |
30 contaminants tested, none detected
Utility contact
Frequently asked questions about Lake Royale S/D
Is Lake Royale S/D tap water safe to drink?
EPA monitoring detected 14 contaminants in Lake Royale S/D'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 Lake Royale S/D's water?
EPA monitoring detected Total Haloacetic Acids (HAA5), TTHM, Bromodichloromethane, Chloroform, Dibromochloromethane, and others. The full list with the level and data source for each is above.
How many people does Lake Royale S/D serve?
Lake Royale S/D reports serving 5,890 people in Missouri, per its EPA record.
Has Lake Royale S/D had any water quality violations?
The EPA has 322 violations on file for Lake Royale S/D, of which 90 are health-based (a contaminant limit or required treatment was breached) and 7 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.