Water Quality in Rancho Cucamonga, CA (93516)
EPA violation data for public water systems serving ZIP code 93516.
No Health-Based Violations
None of the 18 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There are6 monitoring/reporting violations (missed testing deadlines), all resolved.
Better than 57% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
2,889
Population
18
Water Systems
6
Violations (5yr)
0
Health-Based
Location
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Water Systems Serving This Area (18)
Chino Basin Mwd
Cws - Bakersfield
San Gabriel Valley Wc - Fontana
San Bernardino City
Cucamonga Valley Water District
Ontario Municipal Utilities Company
Bakersfield, City Of
Victorville Water District
San Bernardino Valley Wd
East Valley Water District
West Valley Water District
Hesperia Wd
Caillier Water System
Desert Lake Comm Serv Dist
Darr Water Co
All resolvedArco Ampm
U S Borax, Inc.
Relax Inn
All resolvedContaminants Found
At high levels, nitrate can cause blue baby syndrome in infants.
Similar to nitrate — harmful to infants at high levels.
Missed testing deadlines — not a detection of bacteria.
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2023
How Does This Compare?
Rancho Cucamonga (93516) has more violations than 57% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 6, most of which are monitoring/reporting issues.
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.