Sanitation Districts

The Public Works Department - Special Districts Section has administrative oversight of County Sanitation District No. 6 treatment facility in the Stonehurst Subdivision located in Martinez. 

Contact Information for Contra Costa County Sanitation District No.6 in Stonehurst: 
(925) 313-2286

Contact Information for Sanitary Districts in Contra Costa County including Central Contra Costa Sanitary District, West County Wastewater District, and others: 
See pages 19-21 (link)