← Atwater, CA

Tap water quality report

ZIP 95301 — Atwater, CA

EPA monitoring across the 1 water supplier serving ZIP 95301 in Atwater, CA detected 27 contaminants. A detection doesn't automatically mean the water is unsafe — see the highest level found below, with the EPA limit for each.

1
water supplier
29,479
people served
27
contaminants found

What was found in ZIP 95301

The highest level seen across the suppliers serving this ZIP, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
17000 µg/L 170%
of the EPA limit, in the worst sample — 10000 µg/L
1/1 SYR4
Fluoride
200 µg/L 5%
of the EPA limit 4000 µg/L
1/1 SYR4
Barium
160 µg/L 8%
of the EPA limit 2000 µg/L
1/1 SYR4
Combined Uranium
15.9728 µg/L 53%
of the EPA limit 30 µg/L
1/1 SYR4
Total Haloacetic Acids (HAA5)
15 µg/L 25%
of the EPA limit 60 µg/L
1/1 SYR4
Trichloroacetic Acid
14 µg/L
No EPA limit set
1/1 SYR4
Arsenic
9.7 µg/L 97%
of the EPA limit 10 µg/L
1/1 SYR4
TTHM
8.3 µg/L 10%
of the EPA limit 80 µg/L
1/1 SYR4
Bromoform
4.5 µg/L
No EPA limit set
1/1 SYR4
Dibromochloromethane
3.2 µg/L
No EPA limit set
1/1 SYR4
Dichloroacetic Acid
3.1 µg/L
No EPA limit set
1/1 SYR4
Dibromoacetic Acid
1.9 µg/L
No EPA limit set
1/1 SYR4
Bromodichloromethane
1.5 µg/L
No EPA limit set
1/1 SYR4
Lead
1.1 µg/L 7.3%
of the EPA limit 15 µg/L
1/1 SYR4
Chloroform
0.5300 µg/L
No EPA limit set
1/1 SYR4
1,2-DIBROMO-3-CHLOROPROPANE
0.1500 µg/L 75%
of the EPA limit 0.2000 µg/L
1/1 SYR4
PFHXS
0.0590 µg/L
No EPA limit set
1/1 UCMR-5
PFOS
0.0450 µg/L
No EPA limit set
1/1 UCMR-5
PFOA
0.0330 µg/L
No EPA limit set
1/1 UCMR-5
Pfpea
0.0270 µg/L
No EPA limit set
1/1 UCMR-5
Pfhxa
0.0250 µg/L
No EPA limit set
1/1 UCMR-5
6:2 Fts
0.0130 µg/L
No EPA limit set
1/1 UCMR-5
Pfhpa
0.0120 µg/L
No EPA limit set
1/1 UCMR-5
Pfba
0.0110 µg/L
No EPA limit set
1/1 UCMR-5
Pfpes
0.0082 µg/L
No EPA limit set
1/1 UCMR-5
PFBS
0.0078 µg/L
No EPA limit set
1/1 UCMR-5
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.

Water suppliers serving ZIP 95301

SupplierStatePopulation served
CITY OF ATWATER CA 29,479

Frequently asked questions about ZIP 95301 tap water

Is the tap water in ZIP 95301 safe to drink?

EPA testing detected 27 contaminants across the water suppliers serving ZIP 95301. 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 95301?

1 public water supplier report EPA drinking-water monitoring for ZIP 95301. Each is listed above with its population served.

What contaminants are in ZIP 95301's water?

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