Green Building Standards Code - State of California

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APPLICATION MATRICES AND WORKSHEETS WORKSHEET (WS-2) 20% REDUCTION WATER USE CALCULATION TABLE 20% REDUCTION WATER USE CALCULATION TABLE Fixture Type Quantity Flow-rate (gpm) Duration Daily uses Occupants 3, 4 Gallons per day Showerheads X X 5 min. X 1 X = Showerheads residential X X 8 min. X 1 X = Lavatory faucets residential X X 25 min. X 3 X = Kitchen faucets X X 4 min. X 1 X = Replacement aerators X X X X = Wash fountains X X X X = Metering faucets X X .25 min. X 3 X = Metering faucets for wash fountains X X .25 min. X X = Gravity tank type water closets HET 5 High efficiency toilet Flushometer tank water closets Flushometer valve water closets Electromechanical hydraulic water closets X X 1 flush X X 1.28 X 1 flush X X X 1 flush X X X 1 flush X X X 1 flush X 1 male 1 3 female 1 male 1 3 female 1 male 1 3 female 1 male 1 3 female 1 male 1 3 female X = X = X = X = X = Urinals X X 1 flush X 2 male X = Urinals nonwater supplied X 0.0 X 1 flush X 2 male X = Proposed water use = ___________ (BWU from GW-1) × .80 = __________ Allowable water use 1. Except for low-rise residential occupancies, the daily use number shall be increased to three if urinals are not installed in the room. 2. The Flow-rate is from the CEC Appliance Efficiency Standards, California Code of Regulations, Title 24; where a conflict occurs, the CEC standards shall apply. 3. For low-rise residential occupancies, the number of occupants shall be based on two persons for the first bedroom, plus one additional person for each additional bedroom. 4. For nonresidential occupancies, refer to Table A, Chapter 4, 2007 California Plumbing Code, for occupant load factors. 5. Water closet with an effective flush rate of 1.28 gallons or less when tested per ASME A112.19.2 and ASME A112.19.14. 2008 CALIFORNIA GREEN BUILDING STANDARDS CODE 69
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2008 California Green Building Stan
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The California Green Building Stand
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EFFECTIVE USE OF THIS CODE This for
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TABLE OF CONTENTS CHAPTER 9 REFEREN
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ADMINISTRATION repair and replaceme
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ADMINISTRATION SECTION 104 DEPARTME
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Green Building Standards Code - State of California

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