What was found in Lower Greasewood'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 |
|---|---|---|---|
| Barium | 2910 µg/L 146% of the EPA limit, at the 95th percentile of samples — 2000 µg/L Main supplier: Greasewood Springs Community Boarding School BIA · 720 people · 2019 | 1/1 | SYR4 |
| Fluoride | 1080 µg/L 27% of the EPA limit 4000 µg/L Main supplier: Greasewood Springs Community Boarding School BIA · 720 people · 2018 | 1/1 | SYR4 |
| Nitrate | 210 µg/L 2.1% of the EPA limit 10000 µg/L Main supplier: Greasewood Springs Community Boarding School BIA · 720 people · 2019 | 1/1 | SYR4 |
| Lithium | 187 µg/L No EPA limit set Main supplier: Greasewood Springs Community Boarding School BIA · 720 people · 2023 | 1/1 | UCMR-5 |
| TTHM | 106.95 µg/L 134% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: Greasewood Springs Community Boarding School BIA · 720 people · 2019 | 1/1 | SYR4 |
| Combined Uranium | 27.42 µg/L 91% of the EPA limit 30 µg/L Main supplier: Greasewood Springs Community Boarding School BIA · 720 people · 2018 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 19.3 µg/L 32% of the EPA limit 60 µg/L Main supplier: Greasewood Springs Community Boarding School BIA · 720 people · 2019 | 1/1 | SYR4 |
| Selenium | 8.71 µg/L 17% of the EPA limit 50 µg/L Main supplier: Greasewood Springs Community Boarding School BIA · 720 people · 2018 | 1/1 | SYR4 |
| Arsenic | 5.83 µg/L 58% of the EPA limit 10 µg/L Main supplier: Greasewood Springs Community Boarding School BIA · 720 people · 2018 | 1/1 | SYR4 |
| Gross Alpha, Excl. Radon And U | 4.26 pCi/L 28% of the EPA limit 15 pCi/L Main supplier: Greasewood Springs Community Boarding School BIA · 720 people · 2018 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 0.7610 pCi/L 15% of the EPA limit 5 pCi/L Main supplier: Greasewood Springs Community Boarding School BIA · 720 people · 2018 | 1/1 | SYR4 |
| Lead | 0.0033 mg/L 22% of the EPA limit 0.0150 mg/L Main supplier: Greasewood Springs Community Boarding School BIA · 720 people · 2025 | 1/1 | LCR |
| 2,3,7,8-TCDD | 0.000011 µg/L 35% of the EPA limit 0.000030 µg/L Main supplier: Greasewood Springs Community Boarding School BIA · 720 people · 2018 | 1/1 | SYR4 |
Water suppliers serving Lower Greasewood
| Supplier | Population served |
|---|---|
| Greasewood Springs Community Boarding School BIA | 720 |
Frequently asked questions about Lower Greasewood tap water
Is Lower Greasewood tap water safe to drink?
EPA testing detected 13 contaminants in the water serving Lower Greasewood. 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 Lower Greasewood?
1 public water supplier report drinking-water monitoring for Lower Greasewood, Arizona to the EPA. Each is listed above with its population served.
What contaminants are in Lower Greasewood's water?
The contaminants EPA monitoring detected in Lower Greasewood include Barium, Fluoride, Nitrate, Lithium, 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.