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Breaking News

Flaring at Chevron in Richmond

Last updated: 10 p.m. Thursday, December 18, 2014

The flaring has currently stopped at Chevron in Richmond but there may be intermittent flaring this evening. Flaring is a controlled burn off of gas. Our Hazardous Materials staff assessed the situation and determined a shelter-in-place was not needed.

Preferred Drug List

Contra Costa Health Plan has adopted a Preferred Drug List (PDL). Starting July 15, 2002 all new prescriptions for CCHP patients (except permanent County employees) must be taken from our PDL formulary or be accompanied by a Medication Prior Authorization Request (PA) form. Both of these documents are available for download in PDF format:


The Preferred Drug List is the prescription drug formulary for the Contra Costa Health Plan.






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