Sewer & Septic If you notice any of these signs or if you suspect problems with your septic tank system, please contact Ernie's Plumbing & Sewer Service for assistance. One of our friendly professionals will be able to provide your septic system with the proper care it needs. 24 Hour Service - 7 Days Lic. # 802333 Ernie's Plumbing & Sewer Service 4 Goree Court Martinez, CA 94553 Tel: (925) 228-4006 Fax: (925) 228-5243 E-mail: ernies_plu@aol.com (925) 228-5242 Central Contra Costa (510) 758-1900 West Contra Costa (925) 778-0179 East Contra Costa (925) 224-9974 Tri Valley (707) 552-2494 Solano County