Case Study: Olympia, WA: $1.00 2009 Water and Sewer bill: $230,725 Spokane, WA $0.25 Everett, WA: $0.46 El Paso, TX: $0.60 Boston, MA: $1.05 San Diego, CA: $1.38 Geneva, Switzerland: $1.95 Glasgow, UK: $2.86Source: “The World’s Water 2008-2009” by Peter H. Gleick
(165) 3.5 GPF water closetsand bed pan washers werereplaced with 1.6 GPFwater closets and 1.1 / 1.6GPF dual-flushflushometers (37% water-use reduction)Rebate: $85,653 (75% ofcost)
(260) 1.6 GPF onlyflushometers on water closetsand bed pan washers werereplaced with 1.6 / 1.1 GPFdual-flush valve and handleretrofit kits (20% water-usereduction)Rebate: $17,746 (75% of cost)2009 LEED Water Efficiency• Commercial Toilet Prerequisite: 20% less than 1.6 GPF baseline
WaterlessStandard (1.0 GPF)One Pint (.125 GPF)2009 LEED WaterEfficiency (WE)• Commercial Urinal Prerequisite: 20% less than 1.0 GPF baseline
“We have to hit efficiency harder thanever. We need another thirty to fiftyyears to solve the supply problems…buton the demand side we can get way downthe field right now” Mike Davis, Pacific Northwest National Laboratory (PNNL) scientist from Hot, Flat, and Crowded; Why we need a green revolution—and how it can renew America by Thomas L. Friedman.