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Example schematic of a chemical treatment and sand filtration system. Using an existing detention basin for pretreatment, is often more cost effective than pretreatment tanks. (Source: Federal Highway Administration US DOT, 2008)

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current13:52, 11 March 2019Thumbnail for version as of 13:52, 11 March 2019629 × 851 (92 KB)ZKolsum (talk | contribs)Example schematic of a chemical treatment and sand filtration system. Using an existing detention basin for pretreatment, is often more cost effective than pretreatment tanks. (Source: Federal Highway Administration US DOT, 2008)

This page was last edited on 11 March 2019, at 13:52.

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