Water Quality in San Luis Obispo, CA (93407)
EPA violation data for public water systems serving ZIP code 93407.
No Health-Based Violations
None of the 4 water systems serving this ZIP have any violations in the past 5 years.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
347
Population
4
Water Systems
0
Violations (5yr)
0
Health-Based
Location
Loading map...
Water Systems Serving This Area (4)
Santa Margarita Recreation Area
Groundwater 50,001 people served
0 violations
San Luis Obispo Water Department
Surface water 47,788 people served
0 violations
City Of Paso Robles Water Division
Surface water 31,176 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Atascadero Mutual Water Co
Groundwater 30,618 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Lead & Copper Levels
Lead (Pb)
Within limit0 ppb measured
Action level: 15 ppb
Sampled: Jan 2025
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.