Contra Costa County Water Violations

Contra Costa County in California has 6 active public water systems. Together, these systems have 2 health-based violations on record out of 14 total. Health-based violations indicate a contaminant exceeded EPA limits or required treatment was not performed.

Water System	Population Served	Source	Violations	Health-Based
Brentwood	64,513	Surface Water Purchased	12	2
City of Martinez	30,997	Surface Water Purchased	2	0
City of Antioch	115,074	Surface Water	0	0
City of Pittsburg	62,500	Surface Water Purchased	0	0
Ebrpd Bay Point Regional Shoreline	105	Groundwater	0	0
Tess Farm Market	25	Groundwater	0	0