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

We have a new look!

Level 1 Alert lasting longer than 20 minutes or with odors
Notification Only - Flaring incident at Marathon Martinez that may be Seen by the surrounding community.
June 8, 2023, 10:56 pm

RMP - Brentwood Water Treatment Plant

Oakley, CA

Contra Costa Water District's City of Brentwood Water Treatment Plant was constructed in 2008 and is located at 3760 Neroly Rd. in Oakley. The facility uses sodium hypochlorite and aqueous ammonia to treat the water to meet the required water quality standards. The City of Brentwood WTP is operated and maintained 24 hours a day.

For additional information regarding this facility's operations and most recent audit results, please view the Audit Summary - English | Spanish (PDF)

Regulated Substances Subject to CalARP/Federal RMP/ISO:
Regulated Substance Program Level CalARP Regulated Federal RMP Regulated ISO Regulated
Aqueous Ammonia (PDF) 2 yes no no