Changes

Fill from Section 4.0 of the 2016 Guide!!

[[File:The key elements of LID.gif|thumb|600px|A graphic showing the key benefits for effective LID BMP implementation. These elements along with others should be considered during the planning and design phases of LID implementation (Source: Wikimedia Commons, 2012<ref>Wikimedia Commons. 2012. File:The key elements of LID.gif. http://zoe-s-wiki.wikispaces.com/Low+Impact+Development. https://commons.wikimedia.org/wiki/File:The_key_elements_of_LID.gif</ref>).]]

 

draw on LID I&M Guide section 4 content (see training presentation for ideas for images/photos) and include content on Inspection and Maintenance page under section title of the same name.  Add links to the new page to relevant BMP landing pages under “Design” section titles too.

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==Provide Runoff Pretreatment==

==Provide Runoff Pretreatment==

[[Pretreatment]] refers to techniques or devices used to retain coarse materials suspended in stormwater runoff, either through filtration or settling, before it enters the BMP rendering it inefficient over time. Proper pretreatment extends the operating phase of the BMP’s life cycle by reducing the rate of accumulation of coarse sediment, thus delaying the need for at times expensive structural repairs like unclogging filter beds, pipes and orifices. Common pretreatment devices include [[vegetated filter strips]], [[Enhanced swales|grass swales]], [[geotextile]]-lined inlet filters/liners, [[check dams]], [[forebays]], eavestrough screens or filters, [[Oil and grit separators]] (i.e., hydrodynamic separators) and manholes containing baffles, filters and sumps. One important consideration for pretreatment is that these devices require frequent (i.e., at minimal, annual) sediment and trash removal maintenance and should be easy to access by inspection personnel.

[[Pretreatment]] refers to techniques or devices used to retain coarse materials suspended in stormwater runoff, either through filtration or settling, before it enters the BMP rendering it inefficient over time. Proper pretreatment extends the operating phase of the BMP’s life cycle by reducing the rate of accumulation of coarse sediment, thus delaying the need for at times expensive structural repairs like unclogging filter beds, pipes and orifices. Common pretreatment devices include [[vegetated filter strips]], [[Enhanced swales|grass swales]], [[geotextile]]-lined inlet filters/liners, [[check dams]], [[forebays]], eavestrough screens or filters, [[Oil and grit separators| oil and grit separators]] (i.e., hydrodynamic separators) and catch basins or manholes containing baffles, filters and sumps. One important consideration for pretreatment is that these devices require frequent (e.g., annual) sediment and trash removal maintenance and should be easy to access by personnel, vehicles and equipment needed to perform inspection and maintenance tasks.

 

[[File:Oil-grit separator USGS 2002.png|thumb|350px|Example oil-grit separator USGS 2002 (Wikimedia commons)]]

==Design Low Maintenance Conveyance Systems==

==Design Low Maintenance Conveyance Systems==

==Inclusion of Planting Plans==

==Inclusion of Planting Plans==

[[File:Planting Plan.PNG|500px|thumb|An example of a [https://www.restoreyourshore.ca/sample-planting-plans/ Planting Plan] for a development located near a rural stream bank, listed with appropriate tree and shrubs species for the area with their scientific and common names listed along with the quantity to be planted, plant type and their preferred growing conditions (Source: North Bay-Mattawa Conservation Authority, 2022<ref>North Bay-Mattawa Conservation Authority, 2022. Sample Planting Plans - Rural Stream Bank. Accessed 28 June 2022. https://www.restoreyourshore.ca/sample-planting-plans/</ref>|link=https://www.restoreyourshore.ca/media/1011/rural-stream-bank-temp.pdf]]

[[File:Kortright Planting Plan.PNG|700px|thumb|An example of a [https://wikidev.sustainabletechnologies.ca/images/a/ac/Bio-Retention_Cell-Cell_A_planting_plan_20130415.pdf TRCA project Planting Plan] for a [[Bioretention]]/[[Bioswale]] BMP located at the Kortright Centre, in Vaughan, ON. listed with appropriate [[plants]], [[grasses]], [[trees]] and [[shrubs]] species for the area with their scientific and common names listed along with the quantity to be planted, plant type, site and condition characteristics, flowering assemblages and colours and mature height (Source: TRCA, 2013.)|link=https://wikidev.sustainabletechnologies.ca/images/a/ac/Bio-Retention_Cell-Cell_A_planting_plan_20130415.pdf]]

All vegetated BMP designs should include planting plans that specify [[Plant selection|species]] that can tolerate both wet and dry conditions and, for BMPs that will receive de-icing salt laden runoff during winter, species

All vegetated BMP designs should include planting plans that specify [[Plant selection|species]] that can tolerate both wet and dry conditions and, for BMPs that will receive de-icing salt laden runoff during winter, species

==Inclusion of Sediment Removal Plans==

==Inclusion of Sediment Removal Plans==

As mentioned previously, it is recommended that, where possible, [[pretreatment]] devices be included in BMP designs that help retain coarse sediment and debris in an easily accessible location before it enters the BMP itself. However even with pretreatment devices in place, fine sediment will inevitably reach the BMP and accumulate over time. LID BMP designs need to consider how sediment can be removed from associated manhole sumps, pretreatment devices, inlets and pipes, and include adequate features and routes for access by necessary equipment.  

As mentioned previously, it is recommended that, where possible, [[pretreatment]] devices be included in BMP designs that help retain coarse sediment and debris in an easily accessible location before it enters the BMP itself. However even with pretreatment devices in place, fine sediment will inevitably reach the BMP and accumulate over time. LID BMP designs need to consider how sediment can be removed from associated manhole sumps, pretreatment devices, inlets and pipes, and include adequate features and routes for access by necessary equipment.  

 

{|class="wikitable" style="width:750px;"

{|class="wikitable" style="width:750px;"

|+'''Sediment Removal Equipment per BMP Type'''

|+'''Sediment Removal Equipment per BMP Type'''