Conducts food and drink establishment inspections; detects violations; orders corrections to effect compliance with established requirements, recommends alternative design modification and equipping to comply with applicable codes and regulations; processes and insures compliance of applicable portions of building permit applications and plans; advises operators and employees on proper handling procedures and sanitary methods; may obtains samples of products and submits same for laboratory analyses, examinations and tests; conducts foodborne illness investigations; recommends issuance or denial of permits to operate food establishments or suspension or revocation of existing permits; appears and testifies at hearings; prepares related notices to courts, records and correspondence pertaining to duties performed, observations made, violations found and actions taken. Conducts miscellaneous inspections of facilities, including laundry establishments, ambulatory homes for the aged, overnight animal boarding for compliance with pertinent regulations, and recommends issuance or denial of permit to operate; investigates growth of poison oak and other noxious weeds; investigates and adjudicates refuse removal rate disputes between scavenger companies and the public; investigates all complaints regarding the lack of required refuse collection service and/or un-lawful disposal of refuse, debris and garbage accumulation on lots, streets, public places, yards; investigates infestations of rodents and other vermin; investigates mosquito complaints; checks applications and plans for construction of swimming pools; issues permits for small water supplies; inspects for cross connections and approves backflow prevention devices.