What was found in Pahrump'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 | 895 µg/L 9% of the EPA limit 10000 µg/L Main supplier: GREAT BASIN WATER COMPANY · 12,255 people · 2019
Highest in the city: 3430 µg/L — CHIPMUNK RETREAT · 45 people · 2019 | 11/12 | SYR4 |
| Nitrate-Nitrite | 725.5 µg/L 7.3% of the EPA limit 10000 µg/L Main supplier: GREAT BASIN WATER COMPANY · 12,255 people · 2019
Highest in the city: 2981 µg/L — CHIPMUNK RETREAT · 45 people · 2019 | 11/12 | SYR4 |
| Chloroform | 893.044 µg/L No EPA limit set Highest in the city: COUNTRY VIEW ESTATES GBWC · 1,072 people · 2019 | 3/12 | SYR4 |
| Fluoride | 245 µg/L 6.1% of the EPA limit 4000 µg/L Main supplier: GREAT BASIN WATER COMPANY · 12,255 people · 2019
Highest in the city: 500 µg/L — MOUNTAIN FALLS WATER SYSTEM GBWC · 4,345 people · 2018 | 11/12 | SYR4 |
| Copper | 18.17 µg/L 1.4% of the EPA limit 1300 µg/L Main supplier: GREAT BASIN WATER COMPANY · 12,255 people · 2019
Highest in the city: 317.5 µg/L — SPRING MOUNTAIN MOTOR SPORTS RANCH · 85 people · 2019 | 11/12 | SYR4 |
| Xylenes, Total | 180 µg/L 1.8% of the EPA limit 10000 µg/L Highest in the city: MOUNTAIN FALLS WATER SYSTEM GBWC · 4,345 people · 2019 | 1/12 | SYR4 |
| Barium | 73.725 µg/L 3.7% of the EPA limit 2000 µg/L Main supplier: GREAT BASIN WATER COMPANY · 12,255 people · 2019
Highest in the city: 158.5 µg/L — COUNTRY VIEW ESTATES GBWC · 1,072 people · 2014 | 9/12 | SYR4 |
| Ethylbenzene | 27.5 µg/L 3.9% of the EPA limit 700 µg/L Highest in the city: MOUNTAIN FALLS WATER SYSTEM GBWC · 4,345 people · 2019 | 1/12 | SYR4 |
| Lead | 25.65 µg/L 171% of the EPA limit, at the 95th percentile of samples — 15 µg/L Highest in the city: SPRING MOUNTAIN MOTOR SPORTS RANCH · 85 people · 2019 | 4/12 | SYR4 |
| Lithium | 14.6 µg/L No EPA limit set Highest in the city: CHIPMUNK RETREAT · 45 people · 2025 | 1/12 | UCMR-5 |
| Chromium | 4.914 µg/L 4.9% of the EPA limit 100 µg/L Main supplier: GREAT BASIN WATER COMPANY · 12,255 people · 2019
Highest in the city: 13.645 µg/L — SPRING MOUNTAIN MOTOR SPORTS RANCH · 85 people · 2018 | 8/12 | SYR4 |
| TTHM | 11.63 µg/L 15% of the EPA limit 80 µg/L Highest in the city: PAHRUMP UTILITY COMPANY INC · 985 people · 2019 | 4/12 | SYR4 |
| Selenium | 6.95 µg/L 14% of the EPA limit 50 µg/L Highest in the city: COUNTRY VIEW ESTATES GBWC · 1,072 people · 2014 | 5/12 | SYR4 |
| Bromoform | 5.925 µg/L No EPA limit set Highest in the city: COUNTRY VIEW ESTATES GBWC · 1,072 people · 2019 | 3/12 | SYR4 |
| Combined Uranium | 2 µg/L 6.7% of the EPA limit 30 µg/L Main supplier: GREAT BASIN WATER COMPANY · 12,255 people · 2018
Highest in the city: 5.777 µg/L — DESERT MIRAGE HOMEOWNERS ASSOCIATION · 230 people · 2019 | 11/12 | SYR4 |
| Arsenic | 2.082 µg/L 21% of the EPA limit 10 µg/L Main supplier: GREAT BASIN WATER COMPANY · 12,255 people · 2019
Highest in the city: 4.855 µg/L — COUNTRY VIEW ESTATES GBWC · 1,072 people · 2019 | 9/12 | SYR4 |
| Bromodichloromethane | 4.1875 µg/L No EPA limit set Highest in the city: PAHRUMP UTILITY COMPANY INC · 985 people · 2019 | 4/12 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 3.99 µg/L 67% of the EPA limit 6 µg/L Main supplier: GREAT BASIN WATER COMPANY · 12,255 people · 2019 | 1/12 | SYR4 |
| Total Haloacetic Acids (HAA5) | 3.676 µg/L 6.1% of the EPA limit 60 µg/L Highest in the city: PAHRUMP UTILITY COMPANY INC · 985 people · 2019 | 4/12 | SYR4 |
| Gross Beta Particle Activity | 3.4685 pCi/L No EPA limit set Main supplier: GREAT BASIN WATER COMPANY · 12,255 people · 2018 | 7/12 | SYR4 |
| Dibromochloromethane | 3.3475 µg/L No EPA limit set Highest in the city: PAHRUMP UTILITY COMPANY INC · 985 people · 2019 | 4/12 | SYR4 |
| Trichloroacetic Acid | 3.1 µg/L No EPA limit set Highest in the city: DESERT MIRAGE HOMEOWNERS ASSOCIATION · 230 people · 2019 | 2/12 | SYR4 |
| Dichloroacetic Acid | 2.876 µg/L No EPA limit set Highest in the city: PAHRUMP UTILITY COMPANY INC · 985 people · 2019 | 2/12 | SYR4 |
| Combined Radium (-226 And -228) | 0.8478 pCi/L 17% of the EPA limit 5 pCi/L Main supplier: GREAT BASIN WATER COMPANY · 12,255 people · 2018
Highest in the city: 2.806 pCi/L — COUNTRY VIEW ESTATES GBWC · 1,072 people · 2017 | 9/12 | SYR4 |
| Antimony, Total | 1.88 µg/L 31% of the EPA limit 6 µg/L Highest in the city: ANCHOR IN MHP · 36 people · 2019 | 2/12 | SYR4 |
| Gross Alpha, Excl. Radon And U | 1.61 pCi/L 11% of the EPA limit 15 pCi/L Highest in the city: PAHRUMP UTILITY COMPANY INC · 985 people · 2012 | 1/12 | SYR4 |
| Beryllium, Total | 1.6 µg/L 40% of the EPA limit 4 µg/L Main supplier: GREAT BASIN WATER COMPANY · 12,255 people · 2019 | 1/12 | SYR4 |
| Dibromoacetic Acid | 1.444 µg/L No EPA limit set Highest in the city: COUNTRY VIEW ESTATES GBWC · 1,072 people · 2019 | 2/12 | SYR4 |
| Mercury | 0.2989 µg/L 15% of the EPA limit 2 µg/L Main supplier: GREAT BASIN WATER COMPANY · 12,255 people · 2019 | 1/12 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: GREAT BASIN WATER COMPANY · 12,255 people · 2025
Highest in the city: 0.0030 mg/L — DESERT MIRAGE HOMEOWNERS ASSOCIATION · 230 people · 2018 | 11/12 | 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 Pahrump
| Supplier | Population served |
|---|---|
| GREAT BASIN WATER COMPANY | 12,255 |
| MOUNTAIN FALLS WATER SYSTEM GBWC | 4,345 |
| DESERT UTILITIES | 1,086 |
| COUNTRY VIEW ESTATES GBWC | 1,072 |
| PAHRUMP UTILITY COMPANY INC | 985 |
| DESERT MIRAGE HOMEOWNERS ASSOCIATION | 230 |
| CALVADA MEADOWS GBWC | 112 |
| SPRING MOUNTAIN MOTOR SPORTS RANCH | 85 |
| RANCHO VISTA 4 | 50 |
| RANCHO VISTA 3 | 50 |
| CHIPMUNK RETREAT | 45 |
| ANCHOR IN MHP | 36 |
Frequently asked questions about Pahrump tap water
Is Pahrump tap water safe to drink?
EPA testing detected 30 contaminants in the water serving Pahrump. 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 Pahrump?
12 public water suppliers report drinking-water monitoring for Pahrump, Nevada to the EPA. Each is listed above with its population served.
What contaminants are in Pahrump's water?
The contaminants EPA monitoring detected in Pahrump include Nitrate, Nitrate-Nitrite, Chloroform, Fluoride, Copper. 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.