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Tap water quality report

Paradise Valley, AZ

EPA monitoring detected 14 contaminants across the 2 water suppliers serving Paradise Valley. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

2
water suppliers
15,495
people served
14
contaminants found
Arizona rankings Lead in Arizona PFAS in Arizona

What was found in Paradise 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.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
4983 µg/L 50%
of the EPA limit 10000 µg/L
Main supplier: EPCOR - PARADISE VALLEY/SCOTTSDALE · 14,107 people · 2019
Highest in the city: 5300 µg/L — BERNEIL WATER COMPANY · 1,388 people · 2019
2/2 SYR4
Nitrate-Nitrite
4974 µg/L 50%
of the EPA limit 10000 µg/L
Main supplier: EPCOR - PARADISE VALLEY/SCOTTSDALE · 14,107 people · 2019
Highest in the city: 5220 µg/L — BERNEIL WATER COMPANY · 1,388 people · 2018
2/2 SYR4
Fluoride
522 µg/L 13%
of the EPA limit 4000 µg/L
Main supplier: EPCOR - PARADISE VALLEY/SCOTTSDALE · 14,107 people · 2017
2/2 SYR4
Copper
280 µg/L 22%
of the EPA limit 1300 µg/L
Main supplier: EPCOR - PARADISE VALLEY/SCOTTSDALE · 14,107 people · 2017
2/2 SYR4
Lithium
49.6 µg/L
No EPA limit set
Main supplier: EPCOR - PARADISE VALLEY/SCOTTSDALE · 14,107 people · 2024
1/2 UCMR-5
Lead
38.9 µg/L 259%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
Main supplier: EPCOR - PARADISE VALLEY/SCOTTSDALE · 14,107 people · 2017
Highest in the city: 42.25 µg/L — BERNEIL WATER COMPANY · 1,388 people · 2019
2/2 SYR4
Chromium
27.85 µg/L 28%
of the EPA limit 100 µg/L
Main supplier: EPCOR - PARADISE VALLEY/SCOTTSDALE · 14,107 people · 2017
2/2 SYR4
Barium
20 µg/L 1%
of the EPA limit 2000 µg/L
Main supplier: EPCOR - PARADISE VALLEY/SCOTTSDALE · 14,107 people · 2017
Highest in the city: 27.8 µg/L — BERNEIL WATER COMPANY · 1,388 people · 2019
2/2 SYR4
TTHM
20.14 µg/L 25%
of the EPA limit 80 µg/L
Main supplier: EPCOR - PARADISE VALLEY/SCOTTSDALE · 14,107 people · 2019
2/2 SYR4
Arsenic
8.68 µg/L 87%
of the EPA limit 10 µg/L
Main supplier: EPCOR - PARADISE VALLEY/SCOTTSDALE · 14,107 people · 2019
Highest in the city: 10 µg/L — BERNEIL WATER COMPANY · 1,388 people · 2019
2/2 SYR4
Total Haloacetic Acids (HAA5)
2.4 µg/L 4%
of the EPA limit 60 µg/L
Main supplier: EPCOR - PARADISE VALLEY/SCOTTSDALE · 14,107 people · 2019
Highest in the city: 6.84 µg/L — BERNEIL WATER COMPANY · 1,388 people · 2019
2/2 SYR4
Selenium
6.6 µg/L 13%
of the EPA limit 50 µg/L
Main supplier: EPCOR - PARADISE VALLEY/SCOTTSDALE · 14,107 people · 2017
1/2 SYR4
Combined Radium (-226 And -228)
4.5 pCi/L 90%
of the EPA limit 5 pCi/L
Main supplier: EPCOR - PARADISE VALLEY/SCOTTSDALE · 14,107 people · 2014
1/2 SYR4
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: EPCOR - PARADISE VALLEY/SCOTTSDALE · 14,107 people · 2025
Highest in the city: 0.0069 mg/L — BERNEIL WATER COMPANY · 1,388 people · 2025
2/2 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 Paradise Valley

SupplierPopulation served
EPCOR - PARADISE VALLEY/SCOTTSDALE 14,107
BERNEIL WATER COMPANY 1,388

Frequently asked questions about Paradise Valley tap water

Is Paradise Valley tap water safe to drink?

EPA testing detected 14 contaminants in the water serving Paradise 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 Paradise Valley?

2 public water suppliers report drinking-water monitoring for Paradise Valley, Arizona to the EPA. Each is listed above with its population served.

What contaminants are in Paradise Valley's water?

The contaminants EPA monitoring detected in Paradise Valley include Nitrate, Nitrate-Nitrite, Fluoride, Copper, Lithium. 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.