Water Quality in Rancho Cucamonga, CA (92392)

EPA violation data for public water systems serving ZIP code 92392.

No Health-Based Violations

None of the 23 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There is1 monitoring/reporting violation (missed testing deadlines), all resolved.

Better than 29% of US ZIP codes.

Based on EPA compliance data. Not a substitute for an official water quality report from your utility.

65,429

Population

23

Water Systems

1

Violations (5yr)

0

Health-Based

Location

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Water Systems Serving This Area (23)

Chino Basin Mwd

Groundwater 300,000 people served
0 violations

San Gabriel Valley Wc - Fontana

Surface water 237,700 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

San Bernardino City

Groundwater 214,665 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

Cucamonga Valley Water District

Surface water 211,069 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

Ontario Municipal Utilities Company

Purchased surface water 185,010 people served
0 violations
Lead tested: 0.6 ppb (limit: 15 ppb)

Victorville Water District

Purchased surface water 135,983 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

San Bernardino Valley Wd

Groundwater 109,608 people served
0 violations

East Valley Water District

Surface water 108,629 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

West Valley Water District

Surface water 104,498 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

Hesperia Wd

Groundwater 100,744 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

Peggy Sue'S Diner

Groundwater 1,019 people served
0 violations

Baldy Mesa County

Purchased surface water 518 people served
0 violations

San Bernardino Co Service Area

Purchased surface water 100 people served
0 violations

Prime Desert Properties

Groundwater 100 people served
0 violations

Wonderful Memories Daycare

Groundwater 26 people served
0 violations

Caltrans - First Fountain

Groundwater 25 people served
0 violations

J W Lewis

Groundwater 25 people served
0 violations

Bec Apartments

Groundwater 25 people served
0 violations

Alpine Store

All resolved
Groundwater 25 people served
1 violation (5yr) · All resolved

Jeremy S

Groundwater 25 people served
0 violations

North American Drilling

Groundwater 25 people served
0 violations

Caltrans - Second Fountains

Groundwater 25 people served
0 violations

Baldy Mesa Cwd - Inactive

Groundwater 0
0 violations

Contaminants Found

Revised Total Coliform RuleMonitoring

Missed testing deadlines — not a detection of bacteria.

1 violation
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
0 ppb measured Action level: 15 ppb

Sampled: Jan 2023

How Does This Compare?

Rancho Cucamonga (92392) has more violations than 29% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 1, most of which are monitoring/reporting issues.

Fewer violations 29th percentile More violations

Water Filter Recommendations

No contaminant issues detected. For general protection, a basic carbon filter removes common impurities like chlorine and sediment. Look for NSF/ANSI 42 certified products.

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