7 ms·$50k for mine last year! Seattle suburbby tomcam 4y ago$50k for mine last year! Seattle suburbTeever 4y agoWhat do you need a septic system for in suburban Seattle?tomcam 4y agoI live 2 miles from Microsoft but in a rural zone. No city sewer.xxpor 4y agoThere are some houses even within the city of Bellevue on septic still.