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. Author manuscript; available in PMC: 2023 Oct 19.

Published in final edited form as: J Am Water Works Assoc. 2022 May 2;114(4):10–21. doi: 10.1002/awwa.1899

Table 1.

Information Considered in WaterSense Labeling

Home Characteristics	Indoor Products/System	Outdoor Products and Services/System	Rating Information
Location	Toilets—gpf	Size of the installed landscape—ft²	HERS_H2O rating (1–100 scale)
Size—conditioned ft²	Lavatory and kitchen faucets—gpm	Size of unimproved area/estimates for future landscaped area—ft²	Predicted indoor/outdoor annual consumption of the rated home (the home as built)
Size—conditioned ft²	Showerheads—gpm
Bedrooms—n	Clothes washers (IWF, capacity)	Presence of automatic irrigation system	Predicted indoor/outdoor annual consumption of the reference home (the standard’s definition of a typical home of the same size and location)
Stories—n	Dishwashers (WF, standard versus compact)	Controller technology (clock timer versus smart controller)
Lot size—ft²	Water softeners	Flow rate/capacity of irrigation systems
Lot size—ft²	Hot water distribution systems (run length and insulation of pipes)	Commissioning/auditing of irrigation systems

IWF—integrated water factor, WF—water factor