Is Paso Robles, California tap water safe?
7 water systems report serving Paso Robles. Your water depends on which one serves your address. Check your bill if unsure. This list is matched from the ZIP codes in this place, so it may include nearby systems.
B
City of Paso Robles Water Division
Serves 31,176 people · Surface water · Full report →
No health-based violations in the last 5 years; PFOA/PFOS average above the 4 ppt federal limit: PFOA; Lead 90th percentile below the action level (2025).
A
San Miguel Community Services District
Serves 3,019 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2023).
D
Heritage Ranch CSD
Serves 2,956 people · Surface water · Full report →
10 health-based violations in the last 5 years; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
D
Resthaven Mobile Home Park
Serves 99 people · Groundwater · Full report →
19 health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2024).
A
Rancho Salinas Mbwc
Serves 50 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2024).
C
Mustang Springs Mutual Water
Serves 30 people · Groundwater · Full report →
2 health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2024).
A
Ada's Lodges
Serves 25 people · Groundwater · Full report →
No health-based violations in the last 5 years; 2 monitoring/reporting violations; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2024).