8.3 : Commercial Sector Water Consumption




8.3.4 Normalized Annual End Uses of Water in Select Supermarkets in Western United States (1)
Range of Water Use
Fixture/End Use (gal/SF)
Toilets/Urinals 190 - 320
Other/Misc. Indoor (2) 895 - 1,405
Cooling 2,190 - 3,390
Total 3,560 - 5,075
Building Size (SF) 3,8000 - 66,000
Logged average Indoor peak instantaneous
daily use (thousand gal) demand (gpm)
9.71 - 14.33 29.7 - 58.8
Benchmarking Values for Supermarkets (3) N 25th Percentile of Users
Indoor Use with Cooling, gal./SF/year 38 52 - 64
Indoor Use with Cooling, gal./SF/daily transaction 38 9 - 16
Note(s): 1) Water use data for the buildings was collected over a few days. Estimates of annual use were created by accounting for seasonal use and other variables, billing data, and interviews with building managers. 2) Includes water for sinks, spraying vegetables, cleaning, etc. 3) The study derived efficiency benchmarks by analyzing measured data and audit data. The benchmark was set at the lower 25th percentile of users.









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