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Tap water quality report

Oak View, CA

EPA monitoring detected 23 contaminants across the 2 water suppliers serving Oak View. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

2
water suppliers
17,806
people served
23
contaminants found
California rankings Lead in California PFAS in California

What was found in Oak View's water

The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate-Nitrite
600000 µg/L 6000%
of the EPA limit, in the worst sample — 10000 µg/L
 1/2 SYR4
Nitrate
14938.6 µg/L 149%
of the EPA limit, in the worst sample — 10000 µg/L
 1/2 SYR4
Fluoride
600 µg/L 15%
of the EPA limit 4000 µg/L
 1/2 SYR4
Barium
134 µg/L 6.7%
of the EPA limit 2000 µg/L
 1/2 SYR4
TTHM
124 µg/L 155%
of the EPA limit, in the worst sample — 80 µg/L
 2/2 SYR4
Chloroform
92.2 µg/L
No EPA limit set
 2/2 SYR4
Total Haloacetic Acids (HAA5)
75 µg/L 125%
of the EPA limit, in the worst sample — 60 µg/L
 2/2 SYR4
Trichloroacetic Acid
38 µg/L
No EPA limit set
 2/2 SYR4
Dichloroacetic Acid
37 µg/L
No EPA limit set
 2/2 SYR4
Lithium
37 µg/L
No EPA limit set
 2/2 UCMR-5
Bromodichloromethane
30 µg/L
No EPA limit set
 2/2 SYR4
Bromoform
29 µg/L
No EPA limit set
 2/2 SYR4
Dibromochloromethane
26 µg/L
No EPA limit set
 2/2 SYR4
Copper
20 µg/L 1.5%
of the EPA limit 1300 µg/L
 1/2 SYR4
Dibromoacetic Acid
11 µg/L
No EPA limit set
 2/2 SYR4
Monochloroacetic Acid
9.1 µg/L
No EPA limit set
 2/2 SYR4
Monobromoacetic Acid
8.6 µg/L
No EPA limit set
 2/2 SYR4
Lead
2.1 µg/L 14%
of the EPA limit 15 µg/L
 1/2 SYR4
Arsenic
2 µg/L 20%
of the EPA limit 10 µg/L
 1/2 SYR4
Chromium
2 µg/L 2%
of the EPA limit 100 µg/L
 1/2 SYR4
Gross Beta Particle Activity
1.47 pCi/L
No EPA limit set
 1/2 SYR4
Selenium
1 µg/L 2%
of the EPA limit 50 µg/L
 1/2 SYR4
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 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 single worst sample on record — 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 Oak View

SupplierPopulation served
CASITAS MUNICIPAL WATER DIST 11,005
OJAI WATER SYSTEM 6,801

Frequently asked questions about Oak View tap water

Is Oak View tap water safe to drink?

EPA testing detected 23 contaminants in the water serving Oak View. 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 Oak View?

2 public water suppliers report drinking-water monitoring for Oak View, California to the EPA. Each is listed above with its population served.

What contaminants are in Oak View's water?

The contaminants EPA monitoring detected in Oak View include Nitrate-Nitrite, Nitrate, Fluoride, Barium, TTHM. The full list, with the highest level found 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.