>“Twenty-three soil vapor extraction wells have been built, along with a carbon adsorption treatment facility,” the EPA reports. “Groundwater is being extracted

>“Twenty-three soil vapor extraction wells have been built, along with a carbon adsorption treatment facility,” the EPA reports. “Groundwater is being extracted, treated by air stripping, and discharged into Calabazas Creek.” What are the possible side-effects of transferring ground water in quantity to surface waters? The CIR report is also worth reading. http://cironline.org/reports/cleanup-silicon-valley-superfund-site-takes-environmental-toll-6149 http://cironline.org/reports/cleanup-silicon-valley-superfun... >Waste begets waste. At every step along the trail, treatment leaves behind a new batch of waste that needs to be shipped somewhere else. At one stop, a plant in Wisconsin creates more waste than it takes in. I wonder if biological technologies can take some of the "zero sum" out of this system? The technology doesn't have to be particularly 'high' either; perchlorate rocket fuels (which btw are also present in lethal quantities in the regolith of Mars) are broken down by... wait for it... composting. http://www.denix.osd.mil/edqw/upload/GEOSYNTEC_BIO_P2.PDF http://www.denix.osd.mil/edqw/upload/GEOSYNTEC_BIO_P2.PDF