← Green Valley, AZ

Tap water quality report

ZIP 85629 — Green Valley, AZ

EPA monitoring across the 4 water suppliers serving ZIP 85629 in Green Valley, AZ detected 20 contaminants. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier below, with the EPA limit for each.

4
water suppliers
49,575
people served
20
contaminants found

What was found in ZIP 85629

The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
2460 µg/L 25%
of the EPA limit 10000 µg/L
Main supplier: COMMUNITY WC OF GREEN VALLEY · 22,085 people · 2019
Highest in the ZIP: 8700 µg/L — GW FARMERS WATER CO - CONTINENTAL · 5,592 people · 2019
4/4 SYR4
Nitrate-Nitrite
2442.5 µg/L 24%
of the EPA limit 10000 µg/L
Main supplier: COMMUNITY WC OF GREEN VALLEY · 22,085 people · 2019
Highest in the ZIP: 4010 µg/L — GW FARMERS WATER CO - CONTINENTAL · 5,592 people · 2018
3/4 SYR4
Fluoride
1725 µg/L 43%
of the EPA limit 4000 µg/L
Main supplier: COMMUNITY WC OF GREEN VALLEY · 22,085 people · 2019
4/4 SYR4
Lithium
166 µg/L
No EPA limit set
Main supplier: COMMUNITY WC OF GREEN VALLEY · 22,085 people · 2024
4/4 UCMR-5
Copper
126 µg/L 9.7%
of the EPA limit 1300 µg/L
Main supplier: COMMUNITY WC OF GREEN VALLEY · 22,085 people · 2018
4/4 SYR4
Barium
20 µg/L 1%
of the EPA limit 2000 µg/L
Main supplier: COMMUNITY WC OF GREEN VALLEY · 22,085 people · 2019
Highest in the ZIP: 64.7 µg/L — GW FARMERS WATER CO - CONTINENTAL · 5,592 people · 2018
3/4 SYR4
Arsenic
8.705 µg/L 87%
of the EPA limit 10 µg/L
Main supplier: COMMUNITY WC OF GREEN VALLEY · 22,085 people · 2019
Highest in the ZIP: 10 µg/L — GW SAGUARO DIST WATER CO - LAS QUINTAS · 3,720 people · 2019
4/4 SYR4
TTHM
9.605 µg/L 12%
of the EPA limit 80 µg/L
Main supplier: COMMUNITY WC OF GREEN VALLEY · 22,085 people · 2019
4/4 SYR4
Selenium
4.9 µg/L 9.8%
of the EPA limit 50 µg/L
Main supplier: COMMUNITY WC OF GREEN VALLEY · 22,085 people · 2019
1/4 SYR4
Lead
4.57 µg/L 30%
of the EPA limit 15 µg/L
Main supplier: COMMUNITY WC OF GREEN VALLEY · 22,085 people · 2018
4/4 SYR4
Xylenes, Total
0.7000 µg/L 0%
of the EPA limit 10000 µg/L
Main supplier: COMMUNITY WC OF GREEN VALLEY · 22,085 people · 2019
Highest in the ZIP: 2.78 µg/L — GW FARMERS WATER CO - CONTINENTAL · 5,592 people · 2019
2/4 SYR4
Combined Uranium
2.7 µg/L 9%
of the EPA limit 30 µg/L
Highest in the ZIP: SAHUARITA WATER COMPANY · 18,178 people · 2016
1/4 SYR4
Total Haloacetic Acids (HAA5)
2.385 µg/L 4%
of the EPA limit 60 µg/L
Main supplier: COMMUNITY WC OF GREEN VALLEY · 22,085 people · 2019
2/4 SYR4
Di(2-ethylhexyl) Phthalate
1.92 µg/L 32%
of the EPA limit 6 µg/L
Main supplier: COMMUNITY WC OF GREEN VALLEY · 22,085 people · 2019
1/4 SYR4
Bromoform
1.855 µg/L
No EPA limit set
Main supplier: COMMUNITY WC OF GREEN VALLEY · 22,085 people · 2019
1/4 SYR4
Dibromochloromethane
1.765 µg/L
No EPA limit set
Main supplier: COMMUNITY WC OF GREEN VALLEY · 22,085 people · 2019
1/4 SYR4
Gross Alpha, Excl. Radon And U
1 pCi/L 6.7%
of the EPA limit 15 pCi/L
Highest in the ZIP: SAHUARITA WATER COMPANY · 18,178 people · 2016
1/4 SYR4
Bromodichloromethane
0.8850 µg/L
No EPA limit set
Main supplier: COMMUNITY WC OF GREEN VALLEY · 22,085 people · 2019
1/4 SYR4
Combined Radium (-226 And -228)
0.4950 pCi/L 9.9%
of the EPA limit 5 pCi/L
Main supplier: COMMUNITY WC OF GREEN VALLEY · 22,085 people · 2016
1/4 SYR4
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: COMMUNITY WC OF GREEN VALLEY · 22,085 people · 2024
Highest in the ZIP: 0.00048 mg/L — GW SAGUARO DIST WATER CO - LAS QUINTAS · 3,720 people · 2023
4/4 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.

Water suppliers serving ZIP 85629

Frequently asked questions about ZIP 85629 tap water

Is the tap water in ZIP 85629 safe to drink?

EPA testing detected 20 contaminants across the water suppliers serving ZIP 85629. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.

Which water suppliers serve ZIP 85629?

4 public water suppliers report EPA drinking-water monitoring for ZIP 85629. Each is listed above with its population served.

What contaminants are in ZIP 85629's water?

EPA monitoring detected Nitrate, Nitrate-Nitrite, Fluoride, Lithium, Copper, and others across this ZIP's suppliers. The full list with levels and sources is above.