What was found in Hawthorne'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 |
|---|---|---|---|
| Fluoride | 1460 µg/L 37% of the EPA limit 4000 µg/L Main supplier: HAWTHORNE UTILITIES · 2,876 people · 2019
Highest in the city: 1900 µg/L — HAWTHORNE ARMY DEPOT · 300 people · 2017 | 3/3 | SYR4 |
| Nitrate | 1125 µg/L 11% of the EPA limit 10000 µg/L Main supplier: HAWTHORNE UTILITIES · 2,876 people · 2019
Highest in the city: 1800 µg/L — WALKER LAKE GID · 450 people · 2019 | 3/3 | SYR4 |
| Nitrate-Nitrite | 1135 µg/L 11% of the EPA limit 10000 µg/L Main supplier: HAWTHORNE UTILITIES · 2,876 people · 2019
Highest in the city: 1230 µg/L — WALKER LAKE GID · 450 people · 2018 | 3/3 | SYR4 |
| Copper | 3 µg/L 0.2% of the EPA limit 1300 µg/L Main supplier: HAWTHORNE UTILITIES · 2,876 people · 2019
Highest in the city: 394.8 µg/L — HAWTHORNE ARMY DEPOT · 300 people · 2019 | 3/3 | SYR4 |
| TTHM | 2.55 µg/L 3.2% of the EPA limit 80 µg/L Main supplier: HAWTHORNE UTILITIES · 2,876 people · 2019
Highest in the city: 142.25 µg/L — HAWTHORNE ARMY DEPOT · 300 people · 2019 | 3/3 | SYR4 |
| Barium | 37.25 µg/L 1.9% of the EPA limit 2000 µg/L Main supplier: HAWTHORNE UTILITIES · 2,876 people · 2019
Highest in the city: 70.85 µg/L — WALKER LAKE GID · 450 people · 2018 | 3/3 | SYR4 |
| Bromoform | 1.875 µg/L No EPA limit set Main supplier: HAWTHORNE UTILITIES · 2,876 people · 2019
Highest in the city: 65.8 µg/L — WALKER LAKE GID · 450 people · 2019 | 3/3 | SYR4 |
| Dibromochloromethane | 0.7310 µg/L No EPA limit set Main supplier: HAWTHORNE UTILITIES · 2,876 people · 2019
Highest in the city: 50.5 µg/L — HAWTHORNE ARMY DEPOT · 300 people · 2019 | 3/3 | SYR4 |
| Bromodichloromethane | 34 µg/L No EPA limit set Highest in the city: HAWTHORNE ARMY DEPOT · 300 people · 2019 | 2/3 | SYR4 |
| Combined Uranium | 26.8 µg/L 89% of the EPA limit 30 µg/L Main supplier: HAWTHORNE UTILITIES · 2,876 people · 2019
Highest in the city: 29.2 µg/L — HAWTHORNE ARMY DEPOT · 300 people · 2019 | 3/3 | SYR4 |
| Chloroform | 27.6 µg/L No EPA limit set Highest in the city: HAWTHORNE ARMY DEPOT · 300 people · 2019 | 1/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 16.9 µg/L 28% of the EPA limit 60 µg/L Main supplier: HAWTHORNE UTILITIES · 2,876 people · 2019
Highest in the city: 23.4 µg/L — HAWTHORNE ARMY DEPOT · 300 people · 2019 | 3/3 | SYR4 |
| Trichloroacetic Acid | 16.9 µg/L No EPA limit set Main supplier: HAWTHORNE UTILITIES · 2,876 people · 2019
Highest in the city: 21 µg/L — WALKER LAKE GID · 450 people · 2019 | 3/3 | SYR4 |
| Dibromoacetic Acid | 13.04 µg/L No EPA limit set Highest in the city: WALKER LAKE GID · 450 people · 2019 | 2/3 | SYR4 |
| Selenium | 6 µg/L 12% of the EPA limit 50 µg/L Main supplier: HAWTHORNE UTILITIES · 2,876 people · 2019
Highest in the city: 12.7 µg/L — WALKER LAKE GID · 450 people · 2018 | 3/3 | SYR4 |
| Arsenic | 4 µg/L 40% of the EPA limit 10 µg/L Main supplier: HAWTHORNE UTILITIES · 2,876 people · 2019
Highest in the city: 12.25 µg/L — WALKER LAKE GID · 450 people · 2018 | 3/3 | SYR4 |
| Monochloroacetic Acid | 12.12 µg/L No EPA limit set Highest in the city: HAWTHORNE ARMY DEPOT · 300 people · 2019 | 1/3 | SYR4 |
| Dichloroacetic Acid | 11.2 µg/L No EPA limit set Highest in the city: HAWTHORNE ARMY DEPOT · 300 people · 2019 | 1/3 | SYR4 |
| Gross Beta Particle Activity | 4.3635 pCi/L No EPA limit set Main supplier: HAWTHORNE UTILITIES · 2,876 people · 2014
Highest in the city: 10.94 pCi/L — WALKER LAKE GID · 450 people · 2016 | 2/3 | SYR4 |
| Lead | 4.02 µg/L 27% of the EPA limit 15 µg/L Highest in the city: HAWTHORNE ARMY DEPOT · 300 people · 2019 | 2/3 | SYR4 |
| Chromium | 1.85 µg/L 1.9% of the EPA limit 100 µg/L Main supplier: HAWTHORNE UTILITIES · 2,876 people · 2019
Highest in the city: 2.9 µg/L — WALKER LAKE GID · 450 people · 2018 | 2/3 | SYR4 |
| Monobromoacetic Acid | 2.6 µg/L No EPA limit set Highest in the city: HAWTHORNE ARMY DEPOT · 300 people · 2019 | 2/3 | SYR4 |
| Combined Radium (-226 And -228) | 1.4764 pCi/L 30% of the EPA limit 5 pCi/L Main supplier: HAWTHORNE UTILITIES · 2,876 people · 2017
Highest in the city: 2.0625 pCi/L — WALKER LAKE GID · 450 people · 2015 | 2/3 | SYR4 |
| Mercury | 0.6400 µg/L 32% of the EPA limit 2 µg/L Highest in the city: HAWTHORNE ARMY DEPOT · 300 people · 2018 | 1/3 | SYR4 |
| Thallium, Total | 0.5000 µg/L 25% of the EPA limit 2 µg/L Highest in the city: WALKER LAKE GID · 450 people · 2018 | 1/3 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: HAWTHORNE UTILITIES · 2,876 people · 2024
Highest in the city: 0.0030 mg/L — HAWTHORNE ARMY DEPOT · 300 people · 2025 | 3/3 | LCR |
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 the
system's samples — over 100% is worth reading, but is not by itself a
violation.
Formal violations are listed separately.
These are the utilities' own EPA-reported results, not a city-wide
average. A detection means the lab measured the
substance — it isn't the same as exceeding a legal limit. Hover a source
tag to see the EPA program and years behind each figure.
Water suppliers serving Hawthorne
| Supplier | Population served |
|---|---|
| HAWTHORNE UTILITIES | 2,876 |
| WALKER LAKE GID | 450 |
| HAWTHORNE ARMY DEPOT | 300 |
Frequently asked questions about Hawthorne tap water
Is Hawthorne tap water safe to drink?
EPA testing detected 26 contaminants in the water serving Hawthorne. 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 Hawthorne?
3 public water suppliers report drinking-water monitoring for Hawthorne, Nevada to the EPA. Each is listed above with its population served.
What contaminants are in Hawthorne's water?
The contaminants EPA monitoring detected in Hawthorne include Fluoride, Nitrate, Nitrate-Nitrite, Copper, TTHM. 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.