What was found in Mandeville's water
The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Fluoride | 720 µg/L 18% of the EPA limit 4000 µg/L | 13/14 | SYR4 |
| Copper | 700 µg/L 54% of the EPA limit 1300 µg/L | 13/14 | SYR4 |
| Nitrate-Nitrite | 600 µg/L 6% of the EPA limit 10000 µg/L | 11/14 | SYR4 |
| Lead | 80 µg/L 533% of the EPA limit, in the worst sample — 15 µg/L | 14/14 | SYR4 |
| TTHM | 71.4 µg/L 89% of the EPA limit 80 µg/L | 14/14 | SYR4 |
| Chloroform | 64.4 µg/L No EPA limit set | 14/14 | SYR4 |
| Barium | 62 µg/L 3.1% of the EPA limit 2000 µg/L | 4/14 | SYR4 |
| Total Haloacetic Acids (HAA5) | 39.7 µg/L 66% of the EPA limit 60 µg/L | 14/14 | SYR4 |
| Dichloroacetic Acid | 27.7 µg/L No EPA limit set | 14/14 | SYR4 |
| Lithium | 17.1 µg/L No EPA limit set | 4/14 | UCMR-5 |
| Gross Beta Particle Activity | 16.8 pCi/L No EPA limit set | 4/14 | SYR4 |
| Trichloroacetic Acid | 12.3 µg/L No EPA limit set | 13/14 | SYR4 |
| Bromodichloromethane | 12.1 µg/L No EPA limit set | 12/14 | SYR4 |
| Chromium | 10 µg/L 10% of the EPA limit 100 µg/L | 2/14 | SYR4 |
| Dibromoacetic Acid | 7.95 µg/L No EPA limit set | 12/14 | SYR4 |
| Dalapon | 6.258 µg/L 3.1% of the EPA limit 200 µg/L | 3/14 | SYR4 |
| Monobromoacetic Acid | 6 µg/L No EPA limit set | 4/14 | SYR4 |
| Dibromochloromethane | 5.9 µg/L No EPA limit set | 12/14 | SYR4 |
| Monochloroacetic Acid | 5.71 µg/L No EPA limit set | 9/14 | SYR4 |
| Xylenes, Total | 5.2 µg/L 0.1% of the EPA limit 10000 µg/L | 1/14 | SYR4 |
| Selenium | 3.5 µg/L 7% of the EPA limit 50 µg/L | 1/14 | SYR4 |
| Combined Radium (-226 And -228) | 2.91 pCi/L 58% of the EPA limit 5 pCi/L | 8/14 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 2.39 µg/L 40% of the EPA limit 6 µg/L | 10/14 | SYR4 |
| Arsenic | 2 µg/L 20% of the EPA limit 10 µg/L | 6/14 | SYR4 |
| Bromoform | 1.9 µg/L No EPA limit set | 5/14 | SYR4 |
| Asbestos | 1 MFL 14% of the EPA limit 7 MFL | 2/14 | SYR4 |
| Ethylbenzene | 0.9400 µg/L 0.1% of the EPA limit 700 µg/L | 1/14 | SYR4 |
| Hexachlorobenzene | 0.8200 µg/L 82% of the EPA limit 1 µg/L | 3/14 | SYR4 |
| Simazine | 0.6600 µg/L 17% of the EPA limit 4 µg/L | 1/14 | SYR4 |
| Pentachlorophenol | 0.1270 µg/L 13% of the EPA limit 1 µg/L | 1/14 | SYR4 |
| Lead | 0.0030 mg/L 20% of the EPA limit 0.0150 mg/L | 14/14 | LCR |
Water suppliers serving Mandeville
| Supplier | Population served |
|---|---|
| CITY OF MANDEVILLE WATER SUPPLY | 13,000 |
| UTILITIES INC - NORTH PARK WATER SUPPLY | 11,298 |
| UTILITIES INC - KINGSPOINT SUBDIVISION | 6,351 |
| BEAU CHENE WATER SYSTEM | 4,650 |
| UTILITIES INC - LAKE VILLAGE SD | 2,724 |
| UTILITIES INC - GREEN BRIER WATER SUPPLY | 2,250 |
| UTILITIES INC - HUNTWYCK VILLAGE | 2,088 |
| UTILITIES INC - MAGNOLIA FOREST SUBD | 1,635 |
| UTILITIES INC - WOODRIDGE SUBDIVISION | 1,590 |
| UTILITIES INC - QUAIL RIDGE SUBDIVISION | 1,563 |
| UTILITIES INC - OAKMONT SUBD | 612 |
| UTILITIES INC - BEAU VILLAGE | 165 |
| PEARL PLANTATION TOWNHSE | 60 |
| MADISONVILLE ON THE LAKE | 51 |
Frequently asked questions about Mandeville tap water
Is Mandeville tap water safe to drink?
EPA testing detected 31 contaminants in the water serving Mandeville. 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 Mandeville?
14 public water suppliers report drinking-water monitoring for Mandeville, Louisiana to the EPA. Each is listed above with its population served.
What contaminants are in Mandeville's water?
The contaminants EPA monitoring detected in Mandeville include Fluoride, Copper, Nitrate-Nitrite, Lead, TTHM. The full list, with the highest level found 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.