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:
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