The San José - Santa Clara Regional Wastewater Facility (RWF) is one of the largest advanced wastewater treatment facilities in the nation and treats water from homes and businesses in the cities of San José, Santa Clara, Milpitas, Campbell, Cupertino, Los Gatos, Monte Sereno, Saratoga, and unincorporated areas within Santa Clara County. Experience: One (1) year experience as a Wastewater Operator II with the City of San José or two (2) years’ experience at a Wastewater treatment facility with similar processes while holding a valid SWRCB Wastewater Grade II or higher license.