← San Jose, CA

Tap water quality report

ZIP 95119 — San Jose, CA

EPA monitoring across the 1 water supplier serving ZIP 95119 in San Jose, CA 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.

1
water supplier
110,088
people served
20
contaminants found

What was found in ZIP 95119

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-Nitrite
838000 µg/L 8380%
of the EPA limit, at the 95th percentile of samples — 10000 µg/L
Main supplier: GREAT OAKS WC INC · 110,088 people · 2019
1/1 SYR4
Nitrate
6555 µg/L 66%
of the EPA limit 10000 µg/L
Main supplier: GREAT OAKS WC INC · 110,088 people · 2019
1/1 SYR4
Fluoride
224.5 µg/L 5.6%
of the EPA limit 4000 µg/L
Main supplier: GREAT OAKS WC INC · 110,088 people · 2019
1/1 SYR4
Barium
170 µg/L 8.5%
of the EPA limit 2000 µg/L
Main supplier: GREAT OAKS WC INC · 110,088 people · 2019
1/1 SYR4
Lithium
16 µg/L
No EPA limit set
Main supplier: GREAT OAKS WC INC · 110,088 people · 2025
1/1 UCMR-5
TTHM
12.6 µg/L 16%
of the EPA limit 80 µg/L
Main supplier: GREAT OAKS WC INC · 110,088 people · 2019
1/1 SYR4
Bromoform
8.64 µg/L
No EPA limit set
Main supplier: GREAT OAKS WC INC · 110,088 people · 2019
1/1 SYR4
Gross Beta Particle Activity
4.7 pCi/L
No EPA limit set
Main supplier: GREAT OAKS WC INC · 110,088 people · 2016
1/1 SYR4
Dibromochloromethane
4.04 µg/L
No EPA limit set
Main supplier: GREAT OAKS WC INC · 110,088 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
2.095 µg/L 3.5%
of the EPA limit 60 µg/L
Main supplier: GREAT OAKS WC INC · 110,088 people · 2019
1/1 SYR4
Dibromoacetic Acid
2.085 µg/L
No EPA limit set
Main supplier: GREAT OAKS WC INC · 110,088 people · 2019
1/1 SYR4
Mercury
1.9 µg/L 95%
of the EPA limit 2 µg/L
Main supplier: GREAT OAKS WC INC · 110,088 people · 2019
1/1 SYR4
1,1,1-Trichloroethane
1.55 µg/L 0.8%
of the EPA limit 200 µg/L
Main supplier: GREAT OAKS WC INC · 110,088 people · 2019
1/1 SYR4
Bromodichloromethane
1.1 µg/L
No EPA limit set
Main supplier: GREAT OAKS WC INC · 110,088 people · 2019
1/1 SYR4
Asbestos
0.1900 MFL 2.7%
of the EPA limit 7 MFL
Main supplier: GREAT OAKS WC INC · 110,088 people · 2019
1/1 SYR4
PFHXS
0.0080 µg/L
No EPA limit set
Main supplier: GREAT OAKS WC INC · 110,088 people · 2025
1/1 UCMR-5
Pfpea
0.0047 µg/L
No EPA limit set
Main supplier: GREAT OAKS WC INC · 110,088 people · 2025
1/1 UCMR-5
PFOS
0.0046 µg/L
No EPA limit set
Main supplier: GREAT OAKS WC INC · 110,088 people · 2025
1/1 UCMR-5
Pfhxa
0.0045 µg/L
No EPA limit set
Main supplier: GREAT OAKS WC INC · 110,088 people · 2025
1/1 UCMR-5
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: GREAT OAKS WC INC · 110,088 people · 2023
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 95119

SupplierStatePopulation served
GREAT OAKS WC INC CA 110,088

Frequently asked questions about ZIP 95119 tap water

Is the tap water in ZIP 95119 safe to drink?

EPA testing detected 20 contaminants across the water suppliers serving ZIP 95119. 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 95119?

1 public water supplier report EPA drinking-water monitoring for ZIP 95119. Each is listed above with its population served.

What contaminants are in ZIP 95119's water?

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