Combined display of all available logs of Minnesota Stormwater Manual.
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13:52, 11 March 2019 ZKolsumtalkcontribs uploaded File:Sand filtration schematic.jpg(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))
13:52, 11 March 2019 ZKolsumtalkcontribs uploaded File:Downflow dewatering filter.jpg(Downflow dewatering filter constructed from pea gravel. Note sediment filter bag on pipe outlet, which functions as primary removal media. Plastic basin liner extends down stone embankment to basin bottom, allowing downward flows through media while pr...)
13:51, 11 March 2019 ZKolsumtalkcontribs uploaded File:Temporary dewatering sediment trap.jpg(Temporary dewatering sediment trap. Note trap liner, which prevents additional sedimentation via erosion of the banks, and stone berm forebay, which removes large particles before flows enter secondary basin for settling prior to exiting through the ou...)
13:51, 11 March 2019 ZKolsumtalkcontribs uploaded File:Floating skimmer.jpg(Floating skimmer discharge inlets draw clarified water from just below the surface. Note this skimmer rests on a rock berm when the basin is drawn down, to prevent discharge of muddy bottom water and/or clogging. (Source: Lancaster County, PA Conservat...)