Water Quality in San Luis Obispo, CA (93409)
EPA violation data for public water systems serving ZIP code 93409.
No Health-Based Violations
None of the 6 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.
2,952
Population
6
Water Systems
1
Violations (5yr)
0
Health-Based
Location
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Water Systems Serving This Area (6)
Santa Margarita Recreation Area
San Luis Obispo Water Department
City Of Paso Robles Water Division
Atascadero Mutual Water Co
California Mens Colony
All resolvedShandon County - Inactive
Contaminants Found
Lead & Copper Levels
Lead (Pb)
Within limitSampled: Jan 2025
How Does This Compare?
San Luis Obispo (93409) 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.
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.