A project plan must be submitted with each rebate application to demonstrate the selection, use, and anticipated outcomes of the practices. The project plan may be hand drawn.

Site Plan

• Draw site to scale and include dimensions, property line, and street address.
• Show direction of water flow off roof tops and landscapes with arrows.
• Determine catchments.
• Identify areas that require irrigation.
• Label surface areas of hardscapes, identified rainwater practice(s), and associated potential storage volume.

Site Analysis

• Assess site conditions to determine rainwater harvesting goals.
• Use supply and demand calculations to size and locate rain tank(s).
• Use gutter and downspouts to convey the water to the storage.
• Provide retention area(s) for overflow from rain tank(s).
• Take advantage of hardscapes to catch water and redistribute to planted areas.
• Soil can serve as a catchment by grading the surface to increase and direct runoff.
• Strive for zero runoff with no rain to run off your property.

View Example of Level 1 Project Plan
Simple (Passive) Rain Garden

Collection – roof, patio, sidewalks
Distribution System – gutter and downspouts, channels, ditches, swales
Landscape Holding Area – concave depressions, the addition of berms, moats, or soil terracing

View Example of Level 2 Project Plan
Complex (Active) Rain Tank

Collection – roof
Conveyance – direct water from catchment area to storage
Storage – rain tank
Filter – gutter debris screen, downspout debris screen and filter, diverter, first flush, roof washer, etc.