Changes

==Overview==

==Overview==

[[Rainwater harvesting]] is the process of intercepting, conveying and storing rainfall for future use. The term “rainwater harvesting” (RWH) is used herein to refer to capturing rainfall onto rooftops (i.e. “roofwater”) and stormwater runoff from the ground surface (i.e. “stormwater”), and then reusing for irrigation or other greywater-approved uses. The rain that falls upon a catchment surface, such as a roof, is collected and conveyed into a storage facility. Storage tanks, a common method for storage, range in size from rain barrels for residential land uses (typically 190 to 400 litres in size), to large cisterns for industrial, commercial and institutional land uses. A typical pre-fabricated cistern can range from 750 to 40,000 litres in size. STEP has prepared life cycle costs estimates for each design configuration, based on a 2,000 m² road drainage area, runoff control target of 25 mm depth and 72 hour drainage period, for comparison which can be viewed below. To generate your own life cycle cost estimates customized to the development context, design criteria, and constraints applicable to your site, access the updated [https://sustainabletechnologies.ca/lid-lcct/ LID Life Cycle Costing Tool (LCCT) here].

[[Rainwater harvesting]] is the process of intercepting, conveying and storing rainfall for future use. The term “rainwater harvesting” (RWH) is used herein to refer to capturing rainfall onto rooftops (i.e. “roofwater”) and stormwater runoff from the ground surface (i.e. “stormwater”), and then reusing for irrigation or other greywater-approved uses. The rain that falls upon a catchment surface, such as a roof, is collected and conveyed into a storage facility. Storage tanks, a common method for storage, range in size from rain barrels for residential land uses (typically 190 to 400 litres in size), to large cisterns for industrial, commercial and institutional land uses. A typical pre-fabricated cistern can range from 750 to 50,000 litres in size. STEP has prepared life cycle costs estimates for each design configuration, based on a 2,000 m² roof drainage area, runoff control target of 25 mm depth and 72 hour drainage period, for comparison which can be viewed below. To generate your own life cycle cost estimates customized to the development context, design criteria, and constraints applicable to your site, access the updated [https://sustainabletechnologies.ca/lid-lcct/ LID Life Cycle Costing Tool (LCCT) here].

==Design Assumptions==

==Design Assumptions==