Difference between revisions of "Category:Level 3 - General information, reference, tables, images, and archives/Tables/Sand filter, iron enhanced sand filter, media filter"

Alleviating compaction from construction activities > Category:Level 3 - General information, reference, tables, images, and archives/Tables/Sand filter, iron enhanced sand filter, media filter

<span title="Filtration of stormwater through a sand filtering material whose purpose is to remove pollution from runoff"> '''[https://stormwater.pca.state.mn.us/index.php?title=Filtration Sand filters]'''</span>, also called media filters, are suitable for all land uses, as long as the <span title="The total drainage area, including pervious and impervious surfaces, contributing to a BMP"> '''[https://stormwater.pca.state.mn.us/index.php?title=Contributing_drainage_area_to_stormwater_BMPs contributing drainage areas]'''</span> are limited (e.g., typically less than 5 acres). Media filters are not as aesthetically appealing as <span title="Bioretention, also called rain gardens, is a terrestrial-based (up-land as opposed to wetland) water quality and water quantity control process. Bioretention employs a simplistic, site-integrated design that provides opportunity for runoff infiltration, filtration, storage, and water uptake by vegetation. Bioretention areas are suitable stormwater treatment practices for all land uses, as long as the contributing drainage area is appropriate for the size of the facility. Common bioretention opportunities include landscaping islands, cul-de-sacs, parking lot margins, commercial setbacks, open space, rooftop drainage and street-scapes (i.e., between the curb and sidewalk). Bioretention, when designed with an underdrain and liner, is also a good design option for treating Potential stormwater hotspots. Bioretention is extremely versatile because of its ability to be incorporated into landscaped areas. The versatility of the practice also allows for bioretention areas to be frequently employed as stormwater retrofits."> '''bioretention'''</span>, which makes them more appropriate for commercial or light industrial land uses or in locations that will not receive significant public exposure. Media filters are particularly well suited for sites with high percentages of impervious cover (e.g., greater than 50 percent). Media filters can be designed with an <span title="An underground drain or trench with openings through which the water may percolate from the soil or ground above"> '''underdrain'''</span>, which makes them a good option for treating potential <span title="Stormwater Hotspots (PSHs) are activities or practices that have the potential to produce relatively high levels of stormwater pollutants"> '''[https://stormwater.pca.state.mn.us/index.php?title=Potential_stormwater_hotspots stormwater hotspots]'''</span> (PSHs). They can also be installed underground to prevent the consumption of valuable land space (often an important retrofit or redevelopment consideration). Vegetative filters can be incorporated into landscaped areas, providing dual functionality.

[[Category:Level 3 - Best management practices/Structural practices/Sand filter]]