{{alert|Filtration practices can be an important tool for detention of stormwater runoff and treatment of pollutants in stormwater ru
...iltration. However, the practice still functions as a filtration practice. For more information on practices with a raised underdrain, [https://stormwater
{{alert|Infiltration practices can be an important tool for retention and detention of stormwater runoff and treatment of pollutants in
...ert|Infiltration of stormwater, where appropriate, is a preferred practice for managing stormwater runoff, as it reduces pollutants reaching receiving wat
...guidance for using the MIDS calculator|Links to pages providing guidance]] for using BMPs in the MIDS calculator are found at the end of this list of term
*'''Channel length (LC)''': This is an input for using swale in the MIDS calculator. This is the length of the swale channel
...ng|300px|thumb|alt=symbol for swale with no underdrain|<font size=3>Symbol for Swale main channel (without an underdrain) used in the MIDS calculator.</fo
For a swale main channel BMP (no underdrain), stormwater can be retained throug
...x|thumb|alt=Symbol for tree trench system-treebox|<font size=3>Symbol used for the tree trench system/box (w/o underdrain) BMP in the MIDS calculator. Not
For a tree trench system/box without an underdrain, stormwater runoff captured
|+Recommended pollutant removal efficiencies, in percent, for green roofs.<br>
...ected to calculate credits. The model selected depends on your objectives. For compliance with the Construction Stormwater permit, the model must be based
<td>[[Infiltration design guideline - Observation well|Observation well]]</td>
*All infiltration beds should be designed with overflow spillway for extreme storm events
...ts. For detailed guidance or additional information, see the links section for each model.
[[File:mids logo.jpg|300px|right|thumb|alt=image of Minimal Impact Design Standards logo]]
...ntion basin (with underdrain)) used in MIDS calculator|<font size=3>Symbol for Bioretention basin (with underdrain) used in MIDS calculator.</font size>]]
...d tab for Bioretention basin (with underdrain).The user must input a value for impervious area or the BMP will not provide volume and pollutant reduction.
[[File:Symbol for tree trench with underdrain.jpg|300px|thumb|alt=symbol for tree trench system-treebox with underdrain|<font size=3>Symbol used in the
...ltrated water are removed, while pollutants are removed through filtration for the water that flows through an underdrain. All pollutants in water lost t
...g|300px|thumb|alt=Symbol for swale with underdrain.png|<font size=3>Symbol for Swale main channel (with underdrain) used in the MIDS calculator.</font siz
...tab for Swale main channel (with underdrain). The user must input a value for impervious area or the BMP will not provide volume and pollutant reduction.
...ortant tool for retention and detention of stormwater runoff. Depending on design and construction, swales may provide additional benefits, including cleaner
...s are discussed on this page. For information on temporary check dams used for sediment control, [[Sediment control practices - Check dams (ditch checks,
...ng better site design priciples|<font size=3>Schematic showing better site design principles</font size>]]
...[Better site design|better site design]] approaches that could be eligible for water quality volume reduction [[Overview of stormwater credits|stormwater
...e considered negligible. See [[Calculating credits for stormwater ponds]]. For more information on sedimentation processes, [https://stormwaterbook.safl.u
...ithout damaging the underlying roof system. Green roofs create green space for public benefit, energy efficiency, and stormwater retention/ detention."> '
...0 px|thumb|alt=picture of turf reinforcement mats|<font size=3>Examples of turf reinforcement mats. Source: [http://www.dot.ca.gov/hq/LandArch/16_la_design
...e mesh that are processed into three dimensional reinforcement matrices, a design that serves permanent and critical applications where site conditions excee
...site plan reviews]. Permittees must perform and document site plan reviews for construction projects that disturb one acre or more of land. The site plan
...mwater site plan review under the MS4 and Construction Stormwater Permits. For each site plan review performed, permittees must document the project name,
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