What is being done to clean up the contamination at NAAS Monterey?
At the Casanova Oak Knoll Community Park: An In Situ chemical oxidation treatment process has been installed in the park and is currently in its initial operating phase. To remedy the TCE contamination in the groundwater under the park: • The treatment system extracts groundwater from the TCE plume through an extraction well and sends the water to carbon canisters for treatment. • Once through the filters, the treated water is then sent to an equalization tank. • Ferric Sulfide is then added (if necessary) to the treated water at the equalization tank. • Hydrogen peroxide is added in line and mixed with the treated water. • The treated water is re-injected up and down gradient of the TCE plume through re-injection wells. • The treated water then mixes with naturally occurring iron compounds in the groundwater table to form hydroxyl radicals and break down contaminants. At the Monterey Peninsula Airport: An In Situ biodegradation treatment system is currently in its initial operating ph