===Emergency Construction Stormwater Application===
...Minnesota Pollution Control Agency (MPCA) in order to receive Construction Stormwater Permit coverage.
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NPDES/SDS permits for construction sites near specially-protected and impaired waters require additional contr
...rant extra protection (special waters) must use additional best management practices and enhanced runoff controls.
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{{alert|Stormwater and rainwater harvest and use systems can improve or maintain watershed hyd
...uld be coordinated with any concurrent or related construction. An example construction sequence is shown below.
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...icipate eventually including information for specific pollution prevention practices.
...ivities within stormwater pollution prevention programs (SWPPPs) and local stormwater programs.
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...on Stormwater General (CSW) Permit]. Check with local officials, Watershed management Organizations (WMOs), and other agencies to determine if there are any addi
...thorized to infiltrate industrial stormwater under an NPDES/SDS Industrial Stormwater Permit issued by the MPCA;
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[[File:Pdf image.png|100px|thumb|alt=pdf image|<font size=3>[https://stormwater.pca.state.mn.us/index.php?title=File:Types_of_green_roofs_-_Minnesota_Storm
...Green roofs create green space for public benefit, energy efficiency, and stormwater retention/ detention.|alert-success}}
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...ices. The list of trees does not include all trees suitable for stormwater management, but the list encompasses the most common trees used.
{{alert|Trees can be an important tool for retention and detention of stormwater runoff. Trees provide additional benefits, including cleaner air, reduction
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[[File:Step pool.jpg|300px|thumb|alt=image of step pool|<font size=3>Stormwater step pool. Courtesy of Limnotech.</font size>]]
...section [[Green Stormwater Infrastructure (GSI) and sustainable stormwater management]].|alert-success}}
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...protection BMPs can be inserted into a catch basin to trap sediment from a construction site before it enters a storm sewer.</font size>]]
...rs or other underground drainage systems. Inlet protection best management practices (BMPs) are fairly inexpensive, easy to construct, and if maintained properl
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The following document was submitted as part of Minnesota Stormwater Manual updates conducted in 2015 and 2016. See [[Acknowledgements for pretr
The following document was submitted in 2013 as part of the [http://stormwater.pca.state.mn.us/index.php/Minimal_Impact_Design_Standards Minimal Impact De
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{{alert|Site in development|alert-under-construction}}
Soils affect stormwater and stormwater management in two ways.
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[[File:Pdf image.png|100px|thumb|alt=pdf image|<font size=3>[https://stormwater.pca.state.mn.us/index.php?title=File:Assessing_the_performance_of_swales_-_
{{alert|Swales can be an important tool for retention and detention of stormwater runoff. Because they utilize vegetation, swales provide additional benefits
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...pretreatment_vegetated_filter_strips vegetated filter strips] and [https://stormwater.pca.state.mn.us/index.php?title=Design_criteria_for_stormwater_ponds#Pretre
...ews required. this is a cost-effective BMP for small surface infiltration practices and can be easily used for retrofits. Photo courtesy of the City of St. Clo
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[[File:Pdf image.png|100px|thumb|alt=pdf image|<font size=3>[https://stormwater.pca.state.mn.us/index.php?title=Special:WhatLinksHere/File:Assessing_the_pe
...ention of stormwater runoff. Because they utilize vegetation, bioretention practices provide additional benefits, including cleaner air, carbon sequestration, i
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[[file:Construction 1.jpg|300px|left|thumb|alt=construction stormwater image</alt>]]
...ate.mn.us/sites/default/files/wq-strm2-81a.pdf 2023 Minnesota Construction Stormwater Permit]</font size>]]
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{{alert|Trees can be an important tool for retention and detention of stormwater runoff. Trees provide additional benefits, including cleaner air, reduction
...tion|bioretention]] practices. However, because of differences in design, construction and maintenance, we have created a separate section for trees.|alert-info}}
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The construction stormwater permit may prohibit infiltration practices on properties where existing contamination in groundwater or soil is presen
==Permit language ([https://stormwater.pca.state.mn.us/index.php?title=MN_CSW_Permit_Section_16_Infiltration_Syste
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...ter bed (see [[Operation and maintenance of iron enhanced sand filter#Post construction operation and maintenance|discussion below]]).
==Construction phase maintenance==
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...r iron loss or plugging in low oxygen or persistently inundated filtration practices.
<!--*[[Construction specifications for iron enhanced sand filter]]
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[[File:Pdf image.png|100px|thumb|alt=pdf image|<font size=3>[https://stormwater.pca.state.mn.us/index.php?title=File:Assessing_the_performance_of_sand_filt
...'</span> and <span title="Effluent typically refers to the water exiting a stormwater BMP. It therefore typically reflects water treated by the device."> '''effl
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