← Roseville, CA

Tap water quality report

ZIP 95678 — Roseville, CA

EPA monitoring across the 1 water supplier serving ZIP 95678 in Roseville, CA detected 11 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
155,612
people served
11
contaminants found

What was found in ZIP 95678

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
1800 µg/L 18%
of the EPA limit 10000 µg/L
Main supplier: CITY OF ROSEVILLE · 155,612 people · 2019
1/1 SYR4
Nitrate-Nitrite
1100 µg/L 11%
of the EPA limit 10000 µg/L
Main supplier: CITY OF ROSEVILLE · 155,612 people · 2018
1/1 SYR4
Fluoride
642 µg/L 16%
of the EPA limit 4000 µg/L
Main supplier: CITY OF ROSEVILLE · 155,612 people · 2019
1/1 SYR4
Barium
160 µg/L 8%
of the EPA limit 2000 µg/L
Main supplier: CITY OF ROSEVILLE · 155,612 people · 2019
1/1 SYR4
Lithium
62.6 µg/L
No EPA limit set
Main supplier: CITY OF ROSEVILLE · 155,612 people · 2024
1/1 UCMR-5
Dalapon
20 µg/L 10%
of the EPA limit 200 µg/L
Main supplier: CITY OF ROSEVILLE · 155,612 people · 2019
1/1 SYR4
TTHM
19.1 µg/L 24%
of the EPA limit 80 µg/L
Main supplier: CITY OF ROSEVILLE · 155,612 people · 2018
1/1 SYR4
Chloroform
17.95 µg/L
No EPA limit set
Main supplier: CITY OF ROSEVILLE · 155,612 people · 2018
1/1 SYR4
Arsenic
3.07 µg/L 31%
of the EPA limit 10 µg/L
Main supplier: CITY OF ROSEVILLE · 155,612 people · 2019
1/1 SYR4
Bromodichloromethane
2.4 µg/L
No EPA limit set
Main supplier: CITY OF ROSEVILLE · 155,612 people · 2018
1/1 SYR4
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: CITY OF ROSEVILLE · 155,612 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 95678

SupplierStatePopulation served
CITY OF ROSEVILLE CA 155,612

Frequently asked questions about ZIP 95678 tap water

Is the tap water in ZIP 95678 safe to drink?

EPA testing detected 11 contaminants across the water suppliers serving ZIP 95678. 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 95678?

1 public water supplier report EPA drinking-water monitoring for ZIP 95678. Each is listed above with its population served.

What contaminants are in ZIP 95678's water?

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