The Delta Diablo Board of Directors will hold a public hearing on Thursday, June 26, 2025, at 5:30 p.m., in the Board Room at 2500 Pittsburg-Antioch Highway, Antioch, California, to consider adoption of proposed rate increases for wastewater utility services. A summary of the proposed rates and associated financial needs and information, and instructions for protesting the rate increases (if…

Purchasing Division       

All buildings, both residential and commercial, located within the Delta Diablo (District) service area are required to hook up to the public sewer, provided that one is available within 300 feet of the plumbing system of the premises.  Prior to hooking up a sewer or premises, approval and a permit must be obtained from the District.  You can apply for a sewer permit online at https://www.…

The Delta Household Hazardous Waste Collection Facility has reopened with special COVID-19 safety requirements. Please be aware of the following requirements before visiting the facility:

LEAF SEASON IS HERE!

Wastewater treatment processing is one of the most highly-regulated industries in the nation.  It is designed to remove pollutants to protect public health and local waterways, with pretreatment being an essential component of helping reduce pollutants at their source. 

What is FOG?
FOG is a pollution prevention term for fats, oils, and grease.  Restaurants and other food service establishments (FSEs) use FOG in their kitchens and improper management of FOG can lead to costly and unpleasant sewer blockages.