The amount of water the impervious (i.e. hardtops, like pavement or buildings) part of an ecosystem can hold.
Used to calculate:standing water
Varies by: ecosystem
| Used | ecosystem | Reference | Location: Ecosystem (study period) |
Value | Units | Notes |
|---|
| * | Agricultural field / vegetable garden | Assumed | New York City: Urban Area () | 0 | mm | |
| * | Airfield | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Airport terminal | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Alley | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Apartment building | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Beach | Assumed | New York City: Urban Area () | 0 | mm | |
| * | Bike lane | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Bioswale | Assumed | New York City: Urban Area () | 100 | mm | |
| * | Boulevard (arterial) | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Bridge | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Camp | Assumed | New York City: Urban Area () | 1 | mm | |
| * | Cemetery | Assumed | New York City: Urban Area () | 1 | mm | |
| * | Cistern / rain barrels | Assumed | New York City: Urban Area () | 4.9 | mm | We assume two 65 gallon rain barrels per 100 m area, which is equivalent to capturing 4.9 mm water depth over that 100 m area |
| Cistern / rain barrels | Assumed | New York City: Urban Area () | 56.8 | mm | We assume one 1500 water holding tank per 100 m2 of area, which is equivalent to capturing 56.8 mm of water depth | |
| * | Cliffs and rock outcrops | Assumed | New York City: Urban Area () | 1 | mm | |
| * | Cogeneration plant | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Compost bin | Assumed | New York City: Urban Area () | 0 | mm | |
| * | Computer data center | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Cottages / Mobile home | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Deep water estuary | Assumed | New York City: Urban Area () | 0 | mm | |
| * | Derelict structures | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Diesel power plant | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Disturbed Land | Assumed | New York City: Mannahatta () | 0 | mm | |
| * | Eelgrass meadow | Assumed | New York City: Urban Area () | 0 | mm | |
| * | Elevated train | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Estuary | Assumed | New York City: Urban Area () | 0 | mm | |
| * | Factory | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Freshwater marsh | Assumed | New York City: Urban Area () | 0 | mm | |
| * | Fuel storage tank | Assumed | New York City: Urban Area () | 0 | mm | |
| * | Garage | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Gas station | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Geothermal pump | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Graywater recycling | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Greenhouse / vertical farm | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Green roof | Assumed | New York City: Urban Area () | 100 | mm | |
| * | Hardwood swamp | Assumed | New York City: Urban Area () | 0 | mm | |
| * | Heavy rail line | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Hemlock – northern hardwood forest | Assumed | New York City: Mannahatta () | 0 | mm | |
| * | High salt marsh | Assumed | New York City: Urban Area () | 0 | mm | |
| * | Highway | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Hospital | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Hotel | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Landfill | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Lawn | Assumed | New York City: Urban Area () | 0 | mm | |
| * | Light rail line | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Low salt marsh | Assumed | New York City: Urban Area () | 0 | mm | |
| * | Meadow | Assumed | New York City: Urban Area () | 0 | mm | |
| * | Mixed use: office / residential building | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Mixed use: restaurant / office building | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Mixed use: restaurant / residential building | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Mixed use: restaurant / retail building | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Mixed use: retail / office building | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Mixed use: retail / residential building | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Natural gas power plant | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Oak hickory forest | Assumed | New York City: Mannahatta () | 0 | mm | |
| * | Office building | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Orchard | Assumed | New York City: Urban Area () | 0 | mm | |
| * | Ornamental garden | Assumed | New York City: Urban Area () | 0 | mm | |
| * | Parking lot | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Park savanna | Assumed | New York City: Urban Area () | 0 | mm | |
| * | Paved ball field/court | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Pedestrian bridge | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Pedestrian street / plaza | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Permeable pavers | National Ready Mixed Concrete Association- 2011-Pervious Pavement Design | Global: Urban Landscape (2011) | 87.5 | mm | |
| Permeable pavers | National Ready Mixed Concrete Association- 2011-Pervious Pavement Design | Global: Urban Landscape (2011) | 25 | mm | auto traffic carrying capacity: collector, arterial, traffic-slowed, highway | |
| Permeable pavers | National Ready Mixed Concrete Association- 2011-Pervious Pavement Design | Global: Urban Landscape (2011) | 150 | mm | pedestrian traffic over permeable paver: sidewalks, plazas, courtyards | |
| * | Photovoltaic panels | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Pier | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Pond | Assumed | New York City: Urban Area () | 0 | mm | |
| * | Public assembly hall | Assumed | New York City: Urban Area () | 3 | mm | |
| Puddles on hardtops | NULL REFERENCE | NULL REFERENCE LOCATON: NULL ECOSYSTEM (NULL STUDY PERIOD) | None | DUMMY UNIT | ||
| * | Restaurant | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Retail building | Assumed | New York City: Urban Area () | 3 | mm | |
| * | School or university | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Sewage treatment plant | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Shrub land | Assumed | New York City: Urban Area () | 0 | mm | |
| * | Sidewalk | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Single family home | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Solar energy facility | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Solar heating panels | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Solid waste transfer plant | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Stadium | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Stream | Assumed | New York City: Urban Area () | 0 | mm | |
| * | Streetcar line | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Street (collector) | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Street trees | Assumed | New York City: Urban Area () | 0 | mm | |
| * | Subway | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Swimming pool | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Tidal energy facility | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Traffic slowed street | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Trail | Assumed | New York City: Urban Area () | 0 | mm | |
| * | Tunnel | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Utility yard | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Warehouse | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Waste energy power plant | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Water treatment plant | Assumed | New York City: Urban Area () | 3 | mm | |
| * | Water/wastewater storage tank | Assumed | New York City: Urban Area () | 0 | mm | |
| * | Wind farm | Assumed | New York City: Urban Area () | 3 | mm |