Urban Runoff Harvesting - A Local Water Resource for Onsite Landscape Irrigation

摘要

This urban runoff harvesting pilot project would demonstrate how to harvest local water from an underground storm drain running under (or adjacent to) a community park, and use this non-potable water for irrigating a community park, replacing municipal potable water. By tapping into an existing storm drain line, the project would be designed to divert stormwater and dry weather flows from the storm drain into an adjacent storage tank. From the tank, urban runoff would be treated and delivered to thepark's existing irrigation system.Second, the stormwater harvesting and irrigation use pilot project would demonstrate water efficiency and savings over spray irrigation by installing a sub-surface irrigation system under a small test turf patch.This green infrastructure project harvests a local water resource, augments local water supplies, supplants potable water for non-potable purposes, reduces polluted urban runoff discharge to the receiving water body, and helps protect the reliability ofa municipality's water supply.