Rainwater Rewards |
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about this tool | |
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Street address: | |||
City: | |||
Zip: | |||
Could not find a match for the provided address; check your entries and try again. | |||
Selected coordinates: [none; click on map to select] |
Could not find the CENSUS block associated with the provided coordinates;
Try different coordinates or choose a different location selection option. |
The CENSUS BLOCK associated with the selected address or coordinates
is not in our database. Try a different location selection option. |
Selected location: |
Stormwater runoff per rain event | |
Drainage area (acres) | |
% impervious area | |
Impervious area (acres) | |
Amount of rainfall per event (inches) | |
Stormwater runoff per event (ft3) | |
Other location-specific parameters | |
% canopy cover | |
Average annual rainfall (inches) | |
Soil group | |
Value calculation parameters | |
TSS pollution coefficient (mg/L) | |
Phosphorus pollution coefficient (mg/L) | |
Discount rate (%) | |
Scenario length (years) |
In the selected location, buildings, pavement, and other impervious surfaces lead to ft3 of runoff each year. To reduce this runoff, add green infrastructure in step 2 below.
(i) you can add multiple; just select again!
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Area (ft2) | |
Area draining into natural area (ft2) | |
Volume draining into natural area (ft3) |
Drainage area that is impervious (%) |
Number | |
Area draining into cistern (ft2) | |
Volume draining into cistern (ft3) |
Rain barrel cost ($) | |
Drainage area that is impervious (%) | |
Average rainfall per event (in) | |
Annual rainfall per event (in) | |
Volume per cistern (gallons) | |
Total storage volume (ft3) |
Green roof surface area (ft2) | |
Area draining onto green roof (ft2) | |
Volume draining onto green roof (ft3) |
Will roof be installed on a LEED-certified building? | |
Installation cost ($/ft2 | |
Drainage area that is impervious (%) | |
Depth of soil media (ft) | |
Porosity of soil media (%) | |
Volume provided in soil media (ft3) | |
Depth of drainage layer (ft) | |
Porosity of drainage layer (%) | |
Volume provided in drainage layer (ft3) | |
Depth of ponding above surface (ft) | |
Volume provided in ponding layer (ft3) | |
Total volume provided (ft3) |
Basin surface area (ft2) | |
Area draining into basin (ft2) | |
Volume draining into basin (ft3) |
Installation cost ($/ft2 | |
Drainage area that is impervious (%) | |
Depth of soil media (ft) | |
Porosity of soil media (%) | |
Volume provided in soil media (ft3) | |
Depth of drainage layer (ft) | |
Porosity of drainage layer (%) | |
Volume provided in drainage layer (ft3) | |
Depth of ponding above surface (ft) | |
Volume provided in ponding layer (ft3) | |
Total volume provided (ft3) | |
Volume treated (ft3) |
Area of porous pavement (ft2) | |
Area draining onto pavement (ft2) | |
Volume draining onto pavement (ft3) |
Installation cost ($/ft2 | |
Area required to capture all runoff (ft3) | |
Depth of gravel bed (ft) | |
Porosity of gravel bed (%) | |
Total storage volume (ft3) |
Garden surface area (ft2) | |
Area draining into garden (ft2) | |
Volume draining into garden (ft3) |
Installation cost ($/ft2 | |
Drainage area that is impervious (%) | |
Depth of soil media (ft) | |
Porosity of soil media (%) | |
Volume provided in soil media (ft3) | |
Depth of drainage layer (ft) | |
Porosity of drainage layer (%) | |
Volume provided in drainage layer (ft3) | |
Depth of ponding above surface (ft) | |
Volume provided in ponding layer (ft3) | |
Total volume provided (ft3) | |
Percent reduction (%) |
Number | |
Tree size: |
Installation cost ($/planter) | |
Area reduced per tree (ft2) | |
Total impervious area reduced (ft2) |
Infrastructure capacity (ft3): | -- |
Runoff reduced per rainfall event (ft3): | -- of -- |
Runoff reduced (%): | -- |
Runoff reduced per year (ft3) : | -- |
Type | Size | Runoff reduced | Return on investment |
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Stormwater reduced per year: | Return on investment: | ||||
of ft3 | benefits - costs | ||||
ft3 remaining | over years | ||||
Years to payoff: | |||||
Phosphorus pollution reduced: | TSS pollution reduced: | ||||
of lbs annually | of lbs annually | ||||
X | |