[hammock]

There are at least eight different sites in Mountain View https://www.epa.gov/superfund/search-superfund-sites-where-y...

Separately, there are many orgs which track and map the TCE plumes in the groundwater and you can find that info as well through google

[akiselev]

Note that the map only shows National Priority List sites. They're considered to be the most polluted but that doesn't mean that sites not on the NPL list aren't also a concern (my county only has one NPL site but over a dozen non-NPL contaminated areas)