Difference between revisions of "LID Opportunities in Residential Types"

Latest revision as of 18:17, 15 March 2019

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LID opportunities on residential land

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-[[File:House_Figure_1.png|thumb|Residential LID options]]
+#REDIRECT[[LID opportunities on residential land]]
-On residential lands, hard surfaces such as the roof, patio, walkways and driveways can all be targeted to collect, treat, and infiltrate runoff. The practices you choose will vary depending on neighbourhood and site constraints [[LINK]] and landscape ideals identified during market research
-[[LINK]].
-This chapter will provide examples of residential landscape alternatives and LID retrofits that are options for a municipal program. For a good “how to” resource for homeowner LID installation, see TRCA’s Greening Your Grounds: A Homeowners Guide to Stormwater Landscaping Projects, available for purchase at [http://TRCA.on.ca TRCA.on.ca].
-==Landscape Alternatives==
-Landscape alternatives capture rainfall in leafy green foliage. This allows for infiltration, filtration, and evapotranspiration of rainfall and runoff. Landscape alternatives can be designed to require little maintenance and less irrigation after establishment than sod lawns. They are a great water conservation tool.
-Landscape alternatives allow homeowners to customize their property’s landscape to their liking. A guiding principal when designing landscape alternatives is “the right plant for the right place”. Use of both native and non-native plants is acceptable as long as the non-native plants are not invasive and do not require frequent watering. There are various landscape alternatives available, including:
-*Fusion Landscaping®
-*Xeriscaping
-*Tree Clusters
-===Fusion Landscaping®===
-A great example of a landscape alternative is the Region of Peel’s Fusion Landscaping® program. Fusion Landscaping® combines the lush splendour of traditional gardens with modern, eco-friendly plants. This program uses local market research and social marketing to promote behavioural change, address residents’ unique needs, and reduce outdoor water use. For more information, see [http://peelregion.ca/watersmart peelregion.ca/watersmart]
-===Xeriscaping===
-Xeriscaping refers to landscaping, plantings and gardening practices that reduce or eliminate the need for watering. Synonymous with terms such as water-conservative, xeriscaping was originally promoted in areas with perennial water shortages.
-With xeriscaping, plants are selected based on their ability to survive with little water. Additional benefits include reducing water bills, lower maintenance requirements, better plant survival and aesthetics during drought periods. Xeriscaping can be used alone or it can be combined with a larger residential LID program.
-===Tree Clusters===
-Tree clusters are another residential landscape alternative. They provide some of the function of forested areas by intercepting rainfall and allowing for evapotranspiration and infiltration of stormwater runoff. Tree clusters improve water quality, generate organic soils, absorb greenhouse gases, and provide shade for homes. Tree clusters require larger lot sizes and preferably no overhead wires. They can be planted as a standalone feature or part of a larger residential LID landscape.
-==Rain Gardens==
-On the outside, [[rain gardens]] look like a typical garden. However, their function is much greater than a normal garden. Rain gardens are landscaped areas that include a surface depression of approximately 150 mm (6 inches) that allows runoff from residential property to collect and easily absorb into the ground. Within the rain garden a special type of soil, bioretention media, is used to improve the amount of water that gets absorbed by the garden and infiltrated into the native soils.
-Location is very important to a functioning rain garden. When looking at potential locations, look for low areas where runoff can be easily be directed into the garden. Rain gardens are a great option for residential LID retrofits because homeowners can customize the garden to suit theirdesired style. They can be planted with a variety of vegetation including [[Shrubs: List| shrubs]], [[Graminoids: List|grasses]] and [[Perennials: List|flowers]].
-A well-designed rain garden can be maintained with minimal care which is a great marketing point for homeowners. In the first two years, the plants will need watering to ensure they become established. After this establishment period, the garden should only need simple maintenance such as weeding.
-==Permeable Pavement==
-[[Permeable pavement]] are surfaces that encourage infiltration. They can be used in place of conventional asphalt or concrete pavement. These alternatives contain pores, spaces or joints that allow stormwater to pass through to a stone base where it is infiltrated into the underlying native soil or temporarily detained. Types of permeable pavement include:
-*Pervious concrete
-*Porous asphalt
-*Permeable interlocking concrete pavers (PICP, or just permeable pavers)
-Permeable pavement can be used for both driveways and walkways. When infiltrating driveway runoff, confirm whether your residential neighbourhood is in a wellhead protection area. Driveway runoff should not be infiltrated if in a wellhead protection area due to the risk of groundwater contamination. Contact your local Conservation Authority for more information on wellhead protection areas.
-Focus on aesthetic appeal when marketing permeable pavers to homeowners. They come in a variety of colours and shapes, and can be laid out to form patterns or designs that enhance the landscape of residential properties.
-Permeable pavement may also appeal to homeowners because it typically has a longer life span that traditional asphalt. As well, light coloured pavers typically require less winter maintenance. Water and snow generally seep through the joints of the pavers before ice can form. This reduces the amount of salt homeowners need to use on their driveways, walkways or patios.
-==Soakaways and Infiltration Trenches==
-Soakaways, also known as [[infiltration galleries]] and dry wells, are excavations in native soil that are filled with clean granular stone. Soakaways are typically designed with a perforated pipe inlet from a relatively clean water source, such as a roof or pedestrian area. When possible, soakaways should be installed in areas where native soils allow for infiltration. If poorly draining soils are present, an underdrain can be installed to remove standing water.
-Where lot size is a constraint, a linear variation known as [[infiltration trenches]] can be used. This technique may be appropriate for sites where retrofit space is limited to long strips between buildings or along property lines.
-==Rainwater Harvesting==
-Rainwater harvesting is the process of collecting and storing rainwater for future use. Harvested water can be used for a variety of indoor and outdoor non-potable uses with minimal treatment. Rainwater harvesting provides an easy and lowcost option for homeowners to reduce the volume of runoff conveyed from their properties to the municipal storm sewer system.
-===Rainwater harvesting systems===
-[[Rainwater harvesting]] systems collect rainwater from roof runoff and store it until it is needed. These systems are typically used for irrigation, however with additional equipment and proper treatment this water can be used for indoor purposes like toilet flushing and laundry. By using rainwater around the home residents can reduce their water bills while also reducing the amount of stormwater runoff entering the storm sewer system.
-Rainwater storage tanks come in a variety of dimensions and shapes to accommodate both the size and desired aesthetics of residential properties. They can fit unobtrusively against the home, buried underground, or even placed below a deck.
-===Rain Barrels===
-While they provide similar functions to rainwater harvesting systems, [[rain barrels]] have much more limited storage space. Rain barrels are installed at the outlet of downspouts and intercept water draining down roofs. Water collected in rain barrels can be used for irrigation. Rain barrels come in a variety of shapes, sizes and styles. Residents can choose a style of rain barrel that is best suited to their home and personal tastes. For example, rain barrels can be decorated to create garden art.

Difference between revisions of "LID Opportunities in Residential Types"

Latest revision as of 18:17, 15 March 2019

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