What was found in Midlothian'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 |
|---|---|---|---|
| Chlorite | 1610 µg/L 161% of the EPA limit, in the worst sample — 1000 µg/L | 1/3 | SYR4 |
| Fluoride | 1530 µg/L 38% of the EPA limit 4000 µg/L | 3/3 | SYR4 |
| Nitrate | 1460 µg/L 15% of the EPA limit 10000 µg/L | 3/3 | SYR4 |
| Copper | 990 µg/L 76% of the EPA limit 1300 µg/L | 3/3 | SYR4 |
| Nitrate-Nitrite | 320 µg/L 3.2% of the EPA limit 10000 µg/L | 2/3 | SYR4 |
| Lithium | 179.5 µg/L No EPA limit set | 3/3 | UCMR-5 |
| Cyanide | 156 µg/L 78% of the EPA limit 200 µg/L | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 142 µg/L 237% of the EPA limit, in the worst sample — 60 µg/L | 3/3 | SYR4 |
| TTHM | 123 µg/L 154% of the EPA limit, in the worst sample — 80 µg/L | 3/3 | SYR4 |
| Dichloroacetic Acid | 97.4 µg/L No EPA limit set | 3/3 | SYR4 |
| Barium | 89 µg/L 4.5% of the EPA limit 2000 µg/L | 3/3 | SYR4 |
| Bromoform | 63.4 µg/L No EPA limit set | 3/3 | SYR4 |
| Chloroform | 55.2 µg/L No EPA limit set | 3/3 | SYR4 |
| Nitrite | 51.5 µg/L 5.1% of the EPA limit 1000 µg/L | 1/3 | SYR4 |
| Dibromochloromethane | 42.2 µg/L No EPA limit set | 3/3 | SYR4 |
| Bromodichloromethane | 33.6 µg/L No EPA limit set | 3/3 | SYR4 |
| Trichloroacetic Acid | 28.1 µg/L No EPA limit set | 3/3 | SYR4 |
| Lead | 27 µg/L 180% of the EPA limit, in the worst sample — 15 µg/L | 3/3 | SYR4 |
| Chromium | 21 µg/L 21% of the EPA limit 100 µg/L | 3/3 | SYR4 |
| Dibromoacetic Acid | 18.3 µg/L No EPA limit set | 3/3 | SYR4 |
| Monochloroacetic Acid | 16.3 µg/L No EPA limit set | 3/3 | SYR4 |
| Monobromoacetic Acid | 6.9 µg/L No EPA limit set | 3/3 | SYR4 |
| Gross Beta Particle Activity | 6.5 pCi/L No EPA limit set | 2/3 | SYR4 |
| Selenium | 5.7 µg/L 11% of the EPA limit 50 µg/L | 3/3 | SYR4 |
| Xylenes, Total | 5.01 µg/L 0.1% of the EPA limit 10000 µg/L | 2/3 | SYR4 |
| Arsenic | 2.06 µg/L 21% of the EPA limit 10 µg/L | 3/3 | SYR4 |
| Combined Radium (-226 And -228) | 1.5 pCi/L 30% of the EPA limit 5 pCi/L | 1/3 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 1.5 µg/L 25% of the EPA limit 6 µg/L | 3/3 | SYR4 |
| Ethylbenzene | 0.8600 µg/L 0.1% of the EPA limit 700 µg/L | 1/3 | SYR4 |
| Atrazine | 0.7900 µg/L 26% of the EPA limit 3 µg/L | 2/3 | SYR4 |
| Mercury | 0.5220 µg/L 26% of the EPA limit 2 µg/L | 1/3 | SYR4 |
| Thallium, Total | 0.3700 µg/L 19% of the EPA limit 2 µg/L | 2/3 | SYR4 |
| Simazine | 0.3500 µg/L 8.8% of the EPA limit 4 µg/L | 2/3 | SYR4 |
| Antimony, Total | 0.2100 µg/L 3.5% of the EPA limit 6 µg/L | 1/3 | SYR4 |
| Pfba | 0.0124 µg/L No EPA limit set | 3/3 | UCMR-5 |
| Pfpea | 0.0101 µg/L No EPA limit set | 3/3 | UCMR-5 |
| Pfhxa | 0.0090 µg/L No EPA limit set | 3/3 | UCMR-5 |
| PFOS | 0.0062 µg/L No EPA limit set | 1/3 | UCMR-5 |
| PFBS | 0.0049 µg/L No EPA limit set | 3/3 | UCMR-5 |
| PFOA | 0.0048 µg/L No EPA limit set | 1/3 | UCMR-5 |
| Lead | 0.0044 mg/L 29% of the EPA limit 0.0150 mg/L | 3/3 | LCR |
| Pfhpa | 0.0039 µg/L No EPA limit set | 1/3 | UCMR-5 |
Water suppliers serving Midlothian
| Supplier | Population served |
|---|---|
| CITY OF MIDLOTHIAN | 27,699 |
| MOUNTAIN PEAK SUD | 23,988 |
| SARDIS LONE ELM WSC | 20,736 |
Frequently asked questions about Midlothian tap water
Is Midlothian tap water safe to drink?
EPA testing detected 42 contaminants in the water serving Midlothian. 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 Midlothian?
3 public water suppliers report drinking-water monitoring for Midlothian, Texas to the EPA. Each is listed above with its population served.
What contaminants are in Midlothian's water?
The contaminants EPA monitoring detected in Midlothian include Chlorite, Fluoride, Nitrate, Copper, Nitrate-Nitrite. 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.