What was found in Davis's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 490 µg/L 4.9% of the EPA limit 10000 µg/L Main supplier: DAVIS WATER WORKS · 952 people · 2019 | 1/2 | SYR4 |
| Copper | 295.75 µg/L 23% of the EPA limit 1300 µg/L Main supplier: DAVIS WATER WORKS · 952 people · 2017 | 1/2 | SYR4 |
| TTHM | 76.18 µg/L 95% of the EPA limit 80 µg/L Main supplier: DAVIS WATER WORKS · 952 people · 2019 | 1/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 74.28 µg/L 124% of the EPA limit, at the 95th percentile of samples — 60 µg/L Main supplier: DAVIS WATER WORKS · 952 people · 2019 | 1/2 | SYR4 |
| Chloroform | 73.12 µg/L No EPA limit set Main supplier: DAVIS WATER WORKS · 952 people · 2019 | 1/2 | SYR4 |
| Dichloroacetic Acid | 40.29 µg/L No EPA limit set Main supplier: DAVIS WATER WORKS · 952 people · 2019 | 1/2 | SYR4 |
| Trichloroacetic Acid | 37.24 µg/L No EPA limit set Main supplier: DAVIS WATER WORKS · 952 people · 2019 | 1/2 | SYR4 |
| Lead | 17.1 µg/L 114% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: DAVIS WATER WORKS · 952 people · 2017 | 1/2 | SYR4 |
| Barium | 12.55 µg/L 0.6% of the EPA limit 2000 µg/L Main supplier: DAVIS WATER WORKS · 952 people · 2019 | 1/2 | SYR4 |
| Monochloroacetic Acid | 2.88 µg/L No EPA limit set Main supplier: DAVIS WATER WORKS · 952 people · 2019 | 1/2 | SYR4 |
| Dibromoacetic Acid | 2.38 µg/L No EPA limit set Main supplier: DAVIS WATER WORKS · 952 people · 2019 | 1/2 | SYR4 |
| Bromodichloromethane | 1.96 µg/L No EPA limit set Main supplier: DAVIS WATER WORKS · 952 people · 2019 | 1/2 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 0.9920 µg/L 17% of the EPA limit 6 µg/L Main supplier: DAVIS WATER WORKS · 952 people · 2019 | 1/2 | SYR4 |
| Gross Alpha, Excl. Radon And U | 0.2750 pCi/L 1.8% of the EPA limit 15 pCi/L Main supplier: DAVIS WATER WORKS · 952 people · 2019 | 1/2 | SYR4 |
| Combined Radium (-226 And -228) | 0.1940 pCi/L 3.9% of the EPA limit 5 pCi/L Main supplier: DAVIS WATER WORKS · 952 people · 2013 | 1/2 | SYR4 |
| Lead | 0.0025 mg/L 17% of the EPA limit 0.0150 mg/L Main supplier: DAVIS WATER WORKS · 952 people · 2026 | 2/2 | LCR |
Water suppliers serving Davis
| Supplier | Population served |
|---|---|
| DAVIS WATER WORKS | 952 |
| NORTH LAKES SUBDIVISION | 25 |
Frequently asked questions about Davis tap water
Is Davis tap water safe to drink?
EPA testing detected 16 contaminants in the water serving Davis. 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 Davis?
2 public water suppliers report drinking-water monitoring for Davis, West Virginia to the EPA. Each is listed above with its population served.
What contaminants are in Davis's water?
The contaminants EPA monitoring detected in Davis include Nitrate, Copper, TTHM, Total Haloacetic Acids (HAA5), Chloroform. The full list, with the level at the main supplier 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.