Coarse soil definition
Coarse soil means a surface soil containing soil texture classes sand, loamy sand or sandy loam.
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Contaminated soil means any soil which has been exposed to an organic or inorganic contaminant in excess of standards prescribed or adopted by the Minister, and that has caused, is causing, or may cause an adverse effect;
Diatomaceous earth filtration means a process resulting in substantial particulate removal in which a precoat cake of diatomaceous earth filter media is deposited on a support membrane (septum), and while the water is filtered by passing through the cake on the septum, additional filter media known as body feed is continuously added to the feed water to maintain the permeability of the filter cake.
HEPA filter means high-efficiency particulate air filters that are rated to achieve a minimum initial particle-removal efficiency of 99.97 per cent using ASTM F 1471– 93 or equivalent standard;
Lead-contaminated soil means bare soil that contains lead at or in excess of levels identified by the
Perfluoroalkyl and polyfluoroalkyl substances or “PFAS” means a class of fluorinated organic chemicals containing at least one fully fluorinated carbon atom.