← Merced, CA

Tap water quality report

ZIP 95340 — Merced, CA

EPA monitoring across the 1 water supplier serving ZIP 95340 in Merced, CA detected 21 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
93,692
people served
21
contaminants found

What was found in ZIP 95340

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
14656.1 µg/L 147%
of the EPA limit, at the 95th percentile of samples — 10000 µg/L
Main supplier: CITY OF MERCED · 93,692 people · 2019
1/1 SYR4
Nitrate-Nitrite
4910 µg/L 49%
of the EPA limit 10000 µg/L
Main supplier: CITY OF MERCED · 93,692 people · 2019
1/1 SYR4
Barium
480 µg/L 24%
of the EPA limit 2000 µg/L
Main supplier: CITY OF MERCED · 93,692 people · 2019
1/1 SYR4
Fluoride
256 µg/L 6.4%
of the EPA limit 4000 µg/L
Main supplier: CITY OF MERCED · 93,692 people · 2019
1/1 SYR4
Combined Uranium
12.4415 µg/L 41%
of the EPA limit 30 µg/L
Main supplier: CITY OF MERCED · 93,692 people · 2017
1/1 SYR4
Gross Beta Particle Activity
10.23 pCi/L
No EPA limit set
Main supplier: CITY OF MERCED · 93,692 people · 2017
1/1 SYR4
Chloroform
10.12 µg/L
No EPA limit set
Main supplier: CITY OF MERCED · 93,692 people · 2019
1/1 SYR4
TTHM
9.28 µg/L 12%
of the EPA limit 80 µg/L
Main supplier: CITY OF MERCED · 93,692 people · 2019
1/1 SYR4
Arsenic
8.2 µg/L 82%
of the EPA limit 10 µg/L
Main supplier: CITY OF MERCED · 93,692 people · 2019
1/1 SYR4
Dichloromethane
4.42 µg/L 88%
of the EPA limit 5 µg/L
Main supplier: CITY OF MERCED · 93,692 people · 2019
1/1 SYR4
Dibromochloromethane
3 µg/L
No EPA limit set
Main supplier: CITY OF MERCED · 93,692 people · 2019
1/1 SYR4
Bromodichloromethane
2.6 µg/L
No EPA limit set
Main supplier: CITY OF MERCED · 93,692 people · 2019
1/1 SYR4
Tetrachloroethylene
2.53 µg/L 51%
of the EPA limit 5 µg/L
Main supplier: CITY OF MERCED · 93,692 people · 2019
1/1 SYR4
Bromoform
1.6 µg/L
No EPA limit set
Main supplier: CITY OF MERCED · 93,692 people · 2019
1/1 SYR4
Trichloroethylene
0.9930 µg/L 20%
of the EPA limit 5 µg/L
Main supplier: CITY OF MERCED · 93,692 people · 2019
1/1 SYR4
PFHXS
0.0150 µg/L
No EPA limit set
Main supplier: CITY OF MERCED · 93,692 people · 2024
1/1 UCMR-5
1,2-DIBROMO-3-CHLOROPROPANE
0.0140 µg/L 7%
of the EPA limit 0.2000 µg/L
Main supplier: CITY OF MERCED · 93,692 people · 2019
1/1 SYR4
PFOS
0.0089 µg/L
No EPA limit set
Main supplier: CITY OF MERCED · 93,692 people · 2024
1/1 UCMR-5
PFOA
0.0061 µg/L
No EPA limit set
Main supplier: CITY OF MERCED · 93,692 people · 2024
1/1 UCMR-5
Pfhxa
0.0048 µg/L
No EPA limit set
Main supplier: CITY OF MERCED · 93,692 people · 2024
1/1 UCMR-5
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: CITY OF MERCED · 93,692 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 95340

SupplierStatePopulation served
CITY OF MERCED CA 93,692

Frequently asked questions about ZIP 95340 tap water

Is the tap water in ZIP 95340 safe to drink?

EPA testing detected 21 contaminants across the water suppliers serving ZIP 95340. 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 95340?

1 public water supplier report EPA drinking-water monitoring for ZIP 95340. Each is listed above with its population served.

What contaminants are in ZIP 95340's water?

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