Free pet vaccine and microchip clinic offered July 19 Contra Costa Animal Services, Joybound People & Pets and the city of Walnut Creek are offering a free pet vaccine and microchip clinic for Contra Costa County residents on Sunday, July 19 at Tice Valley Community Gym. The clinic starts at 9 a.m. and is first come, first served. It will be in the parking lot of the gym located at 2055