← Covina, CA

Tap water quality report

ZIP 90602 — Covina, CA

EPA monitoring across the 1 water supplier serving ZIP 90602 in Covina, CA detected 25 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
66,045
people served
25
contaminants found

What was found in ZIP 90602

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
5000 µg/L 50%
of the EPA limit 10000 µg/L
1/1 SYR4
Fluoride
320 µg/L 8%
of the EPA limit 4000 µg/L
1/1 SYR4
Barium
110 µg/L 5.5%
of the EPA limit 2000 µg/L
1/1 SYR4
TTHM
27 µg/L 34%
of the EPA limit 80 µg/L
1/1 SYR4
Dibromochloromethane
12 µg/L
No EPA limit set
1/1 SYR4
Bromoform
10 µg/L
No EPA limit set
1/1 SYR4
Total Haloacetic Acids (HAA5)
5.7 µg/L 9.5%
of the EPA limit 60 µg/L
1/1 SYR4
Bromodichloromethane
5.2 µg/L
No EPA limit set
1/1 SYR4
Dibromoacetic Acid
4.1 µg/L
No EPA limit set
1/1 SYR4
Di(2-ethylhexyl) Phthalate
3.8 µg/L 63%
of the EPA limit 6 µg/L
1/1 SYR4
Monochloroacetic Acid
3.7 µg/L
No EPA limit set
1/1 SYR4
Combined Uranium
3.427 µg/L 11%
of the EPA limit 30 µg/L
1/1 SYR4
Arsenic
2.3 µg/L 23%
of the EPA limit 10 µg/L
1/1 SYR4
Chloroform
2.3 µg/L
No EPA limit set
1/1 SYR4
Monobromoacetic Acid
1.5 µg/L
No EPA limit set
1/1 SYR4
cis-1,2-Dichloroethylene
1.4 µg/L 2%
of the EPA limit 70 µg/L
1/1 SYR4
Tetrachloroethylene
1.2 µg/L 24%
of the EPA limit 5 µg/L
1/1 SYR4
Trichloroethylene
0.7100 µg/L 14%
of the EPA limit 5 µg/L
1/1 SYR4
PFOS
0.0130 µg/L
No EPA limit set
1/1 UCMR-5
Pfba
0.0086 µg/L
No EPA limit set
1/1 UCMR-5
PFOA
0.0063 µg/L
No EPA limit set
1/1 UCMR-5
Pfpea
0.0040 µg/L
No EPA limit set
1/1 UCMR-5
PFBS
0.0039 µg/L
No EPA limit set
1/1 UCMR-5
Pfhxa
0.0030 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 90602

SupplierStatePopulation served
SUBURBAN WATER SYSTEMS-WHITTIER CA 66,045

Frequently asked questions about ZIP 90602 tap water

Is the tap water in ZIP 90602 safe to drink?

EPA testing detected 25 contaminants across the water suppliers serving ZIP 90602. 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 90602?

1 public water supplier report EPA drinking-water monitoring for ZIP 90602. Each is listed above with its population served.

What contaminants are in ZIP 90602's water?

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