Isn't this the same stuff found in Mountain View by Google? Ah yah it is. https://cumulis.epa.gov/supercpad/SiteProfiles/index.cfm?fuseaction=second.Cleanup&id=

Isn't this the same stuff found in Mountain View by Google? Ah yah it is. https://cumulis.epa.gov/supercpad/SiteProfiles/index.cfm?fuseaction=second.Cleanup&id=0904966#bkground https://cumulis.epa.gov/supercpad/SiteProfiles/index.cfm?fus... So is this chemical very stable and folks just dumped it into pits or something and it seeped into the groundwater? How did it get deep into the earth like that without being degraded or reacting with other stuff down there etc?