What was found in Chino Valley'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 | 3630 µg/L 36% of the EPA limit 10000 µg/L Main supplier: CHINO VALLEY TOWN OF · 2,742 people · 2019
Highest in the city: 7540 µg/L — MOUNTAIN VIEW MHP · 160 people · 2019 | 9/10 | SYR4 |
| Nitrate-Nitrite | 3598 µg/L 36% of the EPA limit 10000 µg/L Main supplier: CHINO VALLEY TOWN OF · 2,742 people · 2019
Highest in the city: 7253 µg/L — MOUNTAIN VIEW MHP · 160 people · 2017 | 7/10 | SYR4 |
| Fluoride | 327.5 µg/L 8.2% of the EPA limit 4000 µg/L Main supplier: CHINO VALLEY TOWN OF · 2,742 people · 2018
Highest in the city: 388.5 µg/L — INSCRIPTION CANYON WATER COMPANY · 566 people · 2017 | 8/10 | SYR4 |
| Copper | 92 µg/L 7.1% of the EPA limit 1300 µg/L Main supplier: CHINO VALLEY TOWN OF · 2,742 people · 2017
Highest in the city: 351.6 µg/L — ACME WATER - YAVAPAI ESTATES · 243 people · 2019 | 9/10 | SYR4 |
| TTHM | 12.525 µg/L 16% of the EPA limit 80 µg/L Main supplier: CHINO VALLEY TOWN OF · 2,742 people · 2019
Highest in the city: 77.02 µg/L — INSCRIPTION CANYON WATER COMPANY · 566 people · 2019 | 9/10 | SYR4 |
| Lead | 9.4 µg/L 63% of the EPA limit 15 µg/L Main supplier: CHINO VALLEY TOWN OF · 2,742 people · 2017
Highest in the city: 54.56 µg/L — CHINO VALLEY PARK · 65 people · 2019 | 9/10 | SYR4 |
| Nitrite | 52 µg/L 5.2% of the EPA limit 1000 µg/L Highest in the city: INSCRIPTION CANYON WATER COMPANY · 566 people · 2017 | 1/10 | SYR4 |
| Barium | 8.545 µg/L 0.4% of the EPA limit 2000 µg/L Main supplier: CHINO VALLEY TOWN OF · 2,742 people · 2018
Highest in the city: 39.85 µg/L — INSCRIPTION CANYON WATER COMPANY · 566 people · 2017 | 8/10 | SYR4 |
| Total Haloacetic Acids (HAA5) | 1.825 µg/L 3% of the EPA limit 60 µg/L Main supplier: CHINO VALLEY TOWN OF · 2,742 people · 2019
Highest in the city: 27.35 µg/L — INSCRIPTION CANYON WATER COMPANY · 566 people · 2019 | 6/10 | SYR4 |
| Arsenic | 7.61 µg/L 76% of the EPA limit 10 µg/L Main supplier: CHINO VALLEY TOWN OF · 2,742 people · 2018
Highest in the city: 12.245 µg/L — MOUNTAIN VIEW MHP · 160 people · 2019 | 8/10 | SYR4 |
| Chromium | 7.07 µg/L 7.1% of the EPA limit 100 µg/L Main supplier: CHINO VALLEY TOWN OF · 2,742 people · 2018
Highest in the city: 11.78 µg/L — CHINO MEADOWS II · 2,350 people · 2012 | 7/10 | SYR4 |
| Bromoform | 3.64 µg/L No EPA limit set Main supplier: CHINO VALLEY TOWN OF · 2,742 people · 2019
Highest in the city: 7.8 µg/L — CHINO VALLEY PARK · 65 people · 2019 | 6/10 | SYR4 |
| Selenium | 5 µg/L 10% of the EPA limit 50 µg/L Main supplier: CHINO VALLEY TOWN OF · 2,742 people · 2018 | 1/10 | SYR4 |
| Dibromochloromethane | 3.45 µg/L No EPA limit set Main supplier: CHINO VALLEY TOWN OF · 2,742 people · 2019 | 2/10 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 0.9500 µg/L 16% of the EPA limit 6 µg/L Main supplier: CHINO VALLEY TOWN OF · 2,742 people · 2019
Highest in the city: 1.8 µg/L — ROAD RUNNER MHP · 60 people · 2017 | 2/10 | SYR4 |
| Dibromoacetic Acid | 1.1 µg/L No EPA limit set Main supplier: CHINO VALLEY TOWN OF · 2,742 people · 2019
Highest in the city: 1.5 µg/L — CHINO VALLEY PARK · 65 people · 2019 | 2/10 | SYR4 |
| Bromodichloromethane | 1.49 µg/L No EPA limit set Main supplier: CHINO VALLEY TOWN OF · 2,742 people · 2019 | 1/10 | SYR4 |
| Combined Uranium | 1.2 µg/L 4% of the EPA limit 30 µg/L Main supplier: CHINO VALLEY TOWN OF · 2,742 people · 2015 | 1/10 | SYR4 |
| Combined Radium (-226 And -228) | 0.9900 pCi/L 20% of the EPA limit 5 pCi/L Main supplier: CHINO VALLEY TOWN OF · 2,742 people · 2019 | 1/10 | SYR4 |
| Chloroform | 0.9000 µg/L No EPA limit set Main supplier: CHINO VALLEY TOWN OF · 2,742 people · 2019 | 1/10 | SYR4 |
| Gross Alpha, Excl. Radon And U | 0.6000 pCi/L 4% of the EPA limit 15 pCi/L Main supplier: CHINO VALLEY TOWN OF · 2,742 people · 2015 | 1/10 | SYR4 |
| Pentachlorophenol | 0.5400 µg/L 54% of the EPA limit 1 µg/L Highest in the city: INSCRIPTION CANYON WATER COMPANY · 566 people · 2019 | 1/10 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: CHINO VALLEY TOWN OF · 2,742 people · 2023
Highest in the city: 0.00060 mg/L — WHISPERING WINDS APARTMENTS · 60 people · 2025 | 10/10 | 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 Chino Valley
| Supplier | Population served |
|---|---|
| CHINO VALLEY TOWN OF | 2,742 |
| CHINO MEADOWS II | 2,350 |
| APPALOOSA WATER COMPANY | 600 |
| INSCRIPTION CANYON WATER COMPANY | 566 |
| ACME WATER - YAVAPAI ESTATES | 243 |
| QUAIL RIDGE DWID | 179 |
| MOUNTAIN VIEW MHP | 160 |
| CHINO VALLEY PARK | 65 |
| ROAD RUNNER MHP | 60 |
| WHISPERING WINDS APARTMENTS | 60 |
Frequently asked questions about Chino Valley tap water
Is Chino Valley tap water safe to drink?
EPA testing detected 23 contaminants in the water serving Chino Valley. 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 Chino Valley?
10 public water suppliers report drinking-water monitoring for Chino Valley, Arizona to the EPA. Each is listed above with its population served.
What contaminants are in Chino Valley's water?
The contaminants EPA monitoring detected in Chino Valley include Nitrate, Nitrate-Nitrite, Fluoride, 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.