Environmental Compliance Staff Our staff is available to answer your questions. Home » Residents » Protecting the Environment » Environmental Compliance Staff Environmental Compliance Coach (Supervisor): Alex Paredeseccoach@unionsanitary.ca.gov (510) 477-7614Environmental Program Coordinator:Marian Gonzalezepcoordinator@unionsanitary.ca.gov (510) 477-7621Address:Union Sanitary District5072 Benson RoadUnion City, CA 94587-2508Phone: (510) 477-7500Fax: (510) 477-7501