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Health Advisory

Last updated: October 16, 2017, 1:40 pm

How to help North Bay Wildfire Victims:

Wildfire relief organizations prefer monetary donations at this time. For safety reasons, and to avoid blocking emergency traffic, please don’t bring donations to areas affected by wildfires.

Places to donate in Contra Costa:

The Bay Area Air Quality Management District has declared a health advisory due to heavy smoke from the North Bay Fires. For more information visit

RMP - HASA Chemical

Pittsburg, CA

HASA manufactures sodium hypochlorite (bleach) and distributes other chlorine-based disinfectants for protection of potable and waste water facilities; disinfection of sewage and waste water; disinfection of dairy premises and meat processing plants; bleaching and disinfection of laundry; disinfection of hospital operating rooms and related areas; egg cleaning and sanitization; washing solutions for fresh fruits and vegetables; and disinfection of water contained in swimming pool, spas, hydrotherapy tubs, and recreational water. "Recreational water" is a relatively new term and includes water systems in amusement parks with water slides. Sodium hypochlorite, commonly known as "bleach", is manufactured by reacting liquefied chlorine with dilute caustic solution under controlled conditions of temperature and pressure.

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

Regulated Substances Subject to CalARP/Federal RMP/ISO:

Regulated Substances Program Level CalARP Regulated Federal RMP Regulated ISO Regulated
Chlorine 3 yes yes no