...al_by_BMPs#References Sources]. NOTE: removal efficiencies are 100 percent for water that is infiltrated.<br>
...ected to calculate credits. The model selected depends on your objectives. For compliance with the Construction Stormwater permit, the model must be based
...al_by_BMPs#References Sources]. NOTE: removal efficiencies are 100 percent for water that is infiltrated.<br>
...cteria; <sup>4</sup> From the International Stormwater BMP database, 2016, for total nitrogen; <sup>5</sup> No data found.</font size>
...s, link to the following page - [[Calculatingcreditsfor dry swale (grass swale)]]
...- Best management practices/Guidance and information/Pollutant removal and credits]]
...x.php/Phosphorus_credits_for_bioretention_systems_with_an_underdrain media for phosphorus].</font size>]]
...ormwater General Permit and meeting TMDL pollutant reduction requirements. Credits can be achieved either by an individual BMP or cumulatively with multiple B
...g field monitoring are found at [[Calculatingcreditsfor dry swale (grass swale)|this link]].
*[[Terminology for swales|Terminology for swales (grass channels)]]
...s, link to the following page - [[Calculatingcreditsfor dry swale (grass swale)]]
...- Best management practices/Guidance and information/Pollutant removal and credits]]
...g field monitoring are found at [[Calculatingcreditsfor dry swale (grass swale)|this link]].
*[[Terminology for swales|Terminology for high-gradient stormwater step-pool swale]]
...wale.jpg|300 px|thumb|alt=photo of a dry swale|<font size=3>Photo of a dry swale. Courtesy of Limnotech.</font size>]]
{{alert|Swales can be an important tool for retention and detention of stormwater runoff. Because they utilize vegetati
...wale.jpg|300 px|thumb|alt=photo of a wet swale|<font size=3>Photo of a wet swale. Courtesy of Limnotech.</font size>]]
{{alert|Swales can be an important tool for retention and detention of stormwater runoff. Depending on design and const
...ific information. Utilizing the table below and cost estimation worksheets for either [[Bioretention device cost estimate worksheet|bioretention]] or [[Su
{{:Cost components for filtration practices}}
*Center for Watershed Protection, 1996. [https://owl.cwp.org/mdocs-posts/design-of-sw-f
..., B.J. Barfield and J.C. Hayes, 1994. ''Design Hydrology and Sedimentology for Small Catchments''.
<font size=3>'''This table shows comparison of phosphorus removal for different BMPs.<sup>a,e,f</sup> Values represent the percent of incoming po
Link to this [[BMP pollutant removal for phosphorus|table]]
...mb|300px|alt=photo of swale with water|<font size=3>A properly functioning swale should drain within 48 hours of a runoff event</font size>]]
{{alert|Swales can be an important tool for retention and detention of stormwater runoff. Because they utilize vegetati
...into single pages shown below. NOTE that we have included links to images for sand filters and swales in the outline below.|alert-info}}
...designed with an [[Glossary#U|underdrain]], which makes them a good option for treating potential stormwater [[glossary#H|hotspots]] (PSHs). They can also
{{alert|Swales can be an important tool for retention and detention of stormwater runoff. Depending on design and const
<font size=4>[[Acknowledgements for dry swale|Acknowledgements]]</font size>
The most frequently cited maintenance concern for filters is surface and [[Glossary#U|underdrain]] clogging caused by organic
...e (O&M). In particular, with filter construction the most important action for preventing operation and maintenance difficulties is to ensure that the con
...ple, [[Information on pollutant removal by BMPs]] and [[Phosphorus creditsfor bioretention systems with an underdrain]]|alert-info}}
see [[Phosphorus creditsfor bioretention systems with an underdrain]]</td>
...mn.us/index.php?title=Filtration '''filtering''']</span>. A typical method for assessing the performance of of BMPs with <span title="An underground drain
An [http://stormwaterbook.safl.umn.edu/ online manual] for assessing BMP treatment performance was developed in 2010 by Andrew Erickso
[[TP and TSS credits and guidance for manufactured treatment devices (mtds)]]
This page provides pollutant removal credits guidance on determining creditsfor manufactured treatment devices (mtds).