skip to content, health centers and clinics, search, accessibility statement

Breaking News

Health Advisory Lifted for Pittsburg and Antioch

Last updated: 5:39 a.m. Friday, March 27, 2015

The health advisory for Pittsburg and Antioch has been lifted. The advisory was issued for people with respiratory sensitivities this morning after a chemical release at Dow Chemical in Pittsburg. Contra Costa HazMat staff are investigating the incident. More information will be posted as it becomes available.

RMP - Bollman Water Treatment Plant

Concord, CA

Contra Costa Water District's Ralph D. Bollman Water Treatment Plant was constructed in 1968 and is located at 2015 Bates Avenue in Concord. The facility uses aqueous ammonia to treat the water to meet the required water quality standards. The Bollman WTP is operated and maintained 24 hours a day.

Regulated Substances Subject to CalARP/Federal RMP/ISO:
Regulated Substance Program Level CalARP Regulated Federal RMP Regulated ISO Regulated
Aqueous Ammonia (PDF) 1 yes no no