← Laguna Hills, CA

Tap water quality report

ZIP 92692 — Laguna Hills, CA

EPA monitoring across the 3 water suppliers serving ZIP 92692 in Laguna Hills, CA detected 13 contaminants. A detection doesn't automatically mean the water is unsafe — see the highest level found below, with the EPA limit for each.

3
water suppliers
390,325
people served
13
contaminants found

What was found in ZIP 92692

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
Trichloroacetic Acid
486 µg/L
No EPA limit set
3/3 SYR4
Dichloroacetic Acid
157 µg/L
No EPA limit set
3/3 SYR4
Bromoform
89 µg/L
No EPA limit set
3/3 SYR4
TTHM
78.5 µg/L 98%
of the EPA limit 80 µg/L
3/3 SYR4
Dibromochloromethane
51.9 µg/L
No EPA limit set
3/3 SYR4
Lithium
50.1 µg/L
No EPA limit set
3/3 UCMR-5
Total Haloacetic Acids (HAA5)
35.7 µg/L 60%
of the EPA limit 60 µg/L
3/3 SYR4
Chloroform
33.8 µg/L
No EPA limit set
3/3 SYR4
Bromodichloromethane
30.4 µg/L
No EPA limit set
3/3 SYR4
Dibromoacetic Acid
15.3 µg/L
No EPA limit set
3/3 SYR4
Monobromoacetic Acid
1.8 µg/L
No EPA limit set
1/3 SYR4
Pfba
0.0067 µg/L
No EPA limit set
1/3 UCMR-5
Lead
0.00080 mg/L 5.3%
of the EPA limit 0.0150 mg/L
3/3 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 92692

SupplierStatePopulation served
MOULTON NIGUEL WATER DISTRICT CA 170,236
SANTA MARGARITA WATER DISTRICT CA 168,289
EL TORO WATER DISTRICT CA 51,800

Frequently asked questions about ZIP 92692 tap water

Is the tap water in ZIP 92692 safe to drink?

EPA testing detected 13 contaminants across the water suppliers serving ZIP 92692. 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 92692?

3 public water suppliers report EPA drinking-water monitoring for ZIP 92692. Each is listed above with its population served.

What contaminants are in ZIP 92692's water?

EPA monitoring detected Trichloroacetic Acid, Dichloroacetic Acid, Bromoform, TTHM, Dibromochloromethane, and others across this ZIP's suppliers. The full list with levels and sources is above.