← Vista, CA

Tap water quality report

ZIP 92083 — Vista, CA

EPA monitoring across the 1 water supplier serving ZIP 92083 in Vista, CA detected 15 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.

1
water supplier
132,430
people served
15
contaminants found

What was found in ZIP 92083

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
Fluoride
683.5 µg/L 17%
of the EPA limit 4000 µg/L
Main supplier: VISTA IRRIGATION DISTRICT · 132,430 people · 2013
1/1 SYR4
TTHM
57.464999999999975 µg/L 72%
of the EPA limit 80 µg/L
Main supplier: VISTA IRRIGATION DISTRICT · 132,430 people · 2019
1/1 SYR4
Lithium
52 µg/L
No EPA limit set
Main supplier: VISTA IRRIGATION DISTRICT · 132,430 people · 2023
1/1 UCMR-5
Total Haloacetic Acids (HAA5)
22.705 µg/L 38%
of the EPA limit 60 µg/L
Main supplier: VISTA IRRIGATION DISTRICT · 132,430 people · 2019
1/1 SYR4
Bromodichloromethane
19.6 µg/L
No EPA limit set
Main supplier: VISTA IRRIGATION DISTRICT · 132,430 people · 2019
1/1 SYR4
Dibromochloromethane
18.904999999999998 µg/L
No EPA limit set
Main supplier: VISTA IRRIGATION DISTRICT · 132,430 people · 2019
1/1 SYR4
Chloroform
18.739999999999984 µg/L
No EPA limit set
Main supplier: VISTA IRRIGATION DISTRICT · 132,430 people · 2019
1/1 SYR4
Dichloroacetic Acid
11.004999999999999 µg/L
No EPA limit set
Main supplier: VISTA IRRIGATION DISTRICT · 132,430 people · 2019
1/1 SYR4
Bromoform
8.2 µg/L
No EPA limit set
Main supplier: VISTA IRRIGATION DISTRICT · 132,430 people · 2019
1/1 SYR4
Trichloroacetic Acid
6.4 µg/L
No EPA limit set
Main supplier: VISTA IRRIGATION DISTRICT · 132,430 people · 2019
1/1 SYR4
Dibromoacetic Acid
5.9 µg/L
No EPA limit set
Main supplier: VISTA IRRIGATION DISTRICT · 132,430 people · 2019
1/1 SYR4
Monochloroacetic Acid
5.17 µg/L
No EPA limit set
Main supplier: VISTA IRRIGATION DISTRICT · 132,430 people · 2019
1/1 SYR4
Arsenic
3.17 µg/L 32%
of the EPA limit 10 µg/L
Main supplier: VISTA IRRIGATION DISTRICT · 132,430 people · 2013
1/1 SYR4
Monobromoacetic Acid
1.4849999999999999 µg/L
No EPA limit set
Main supplier: VISTA IRRIGATION DISTRICT · 132,430 people · 2019
1/1 SYR4
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: VISTA IRRIGATION DISTRICT · 132,430 people · 2024
1/1 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 92083

SupplierStatePopulation served
VISTA IRRIGATION DISTRICT CA 132,430

Frequently asked questions about ZIP 92083 tap water

Is the tap water in ZIP 92083 safe to drink?

EPA testing detected 15 contaminants across the water suppliers serving ZIP 92083. 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 92083?

1 public water supplier report EPA drinking-water monitoring for ZIP 92083. Each is listed above with its population served.

What contaminants are in ZIP 92083's water?

EPA monitoring detected Fluoride, TTHM, Lithium, Total Haloacetic Acids (HAA5), Bromodichloromethane, and others across this ZIP's suppliers. The full list with levels and sources is above.