This article explains the Leadership in Energy and Environmental Design (LEED) points available for integrating a properly designed rainwater harvesting system into your home or building.
SS Credit 6.1 – Stormwater Quantity Control, 1 Point
Intent – Limit disruption of natural hydrology by reducing impervious cover, increasing on-site infiltration, reducing or eliminating pollution from stormwater runoff and eliminating contaminants.
RWH Application = Capturing runoff and storing for reuse keeps water on site, reducing runoff completely.
SS Credit 6.2 – Stormwater Quality Control, 1 Point
Intent – Limit disruption and pollution of natural water flows by managing stormwater runoff.
Rainwater Harvesting – Stop pollutants from leaving your site by storing runoff and reusing for irrigation or other nonpotable applications.
WE Credit 1 – Water Efficient Landscaping, 2-4 Points
Intent – Limit of eliminate the use of potable water or other natural surface of subsurface water resources available on or near project site for landscape irrigation. Reduce by 50% (2 points) or eliminate (4 points).
– Create water efficient landscaping by harvesting rainwater for re-use
WE Credit 2 – Innovative Wastewater Technologies, 2 Points
Intent – Reduce wastewater generation and potable water demand (50% reduction) while increasing the local aquifer recharge through the use of nonpotable water on-site wastewater treatment.
– Capture and re-use water for nonpotable applications like toilet flushing, process water, wash water, etc.
WE Credit 3 – Water Efficiency, 2-4 Points
Intent – Furthur increase water efficiency within buildings to reduce the burden on municipal water supply and wastewater systems. Reduce by 30% (2 points), reduce by 35% (3 points) or reduce by 40% (4 points).
– Reuse harvested rainwater for nonpotable water applications such as toilet flushing
MR Credit 4 – Recycled Content, 1-2 Points
Intent – Increase the demand for building products and incorporate recycled content materials. The sum of post-consumer recycled content plus one-half of the pre-consumer content constitutes at least 10% (1 point) or 20% (2 points), based on cost, of the total value of the materials in the projects.
– Steel in the most recycled material in the world
– Up to 80% recycled content is aboveground or belowground metal cistern
– Steel reinforcing ribs (SRPE cisterns) have 50-80% recycled content by weight
Assembled by Rainwater Resources – 2011