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• All storage areas for housekeeping equipment and products should have separate exhausts vented to the outside and should be ventilated and operable under negative pressure. Clarify that the design complies with this credit or estimate the cost of compliance. SAFEGUARDING WATER Credit 1: Water-Conserving Fixtures Install fixtures that use 20% less water than the water usage requirements in the Energy Policy Act of 1992 as follows: Fixture Requirement 20% Reduction Showerhead 2.5 gallons/minute* 2.0 gallons/minute Lavatory Fixture 2.5 gallons/minute* 2.0 gallons/minute Lavatory replacement aerators 2.5 gallons/minute* 2.0 gallons/minute Kitchen faucets 2.5 gallons/minute* 2.0 gallons/minute Kitchen replacement aerates 2.5 gallons/minute* 2.0 gallons/minute Metering faucets 0.25 gailons/cy 0.20 gallons/cy Gravity tank-type toilets 1.6 gallons/flush** 1.3 gallons/flush Flushometer tank toilets 1.6 gallons/flush 1.3 gallons/flush Electromechanical hydraulic toilets 1.6 gallons/flush 1.3 gallons/flush Blowout toilets 1.6 gallons/flush 1.3 gallons/flush Urinals 1.0 gallons/flush 0.8 gallons/flush * At flowing water pressure of 80 pounds per square inch. ** Gravity tank type white 2-piece toilets which bear an adhesive label ("Commercial Use Only") manufactured after January i, 1994 and before January 1, 1997, are 3.5 gallons/flush. The specifications and drawings call for flow control devices for showers to prevent flow over 2.0 gallons/minute and for public lavatories to prevent flow over 0.5 gallons/minute. Also specified are infrared sensors for lavatories. The rest of the fixtures do not meet the 20% reduction requirement. To obtain this credit it must be shown that the total water consumption will be 20% less than it would be using fixtures that meet the requirements of the Energy Policy Act oj1992. Estimate the cost to conduct a consumption calculation based on the demand calculation used to determine the fixture counts and piping sizes. Credit 4: Water-Efficient Landscape Use only plants that are tolerant of climate, soils, and natural water availability, and that do not receive watering from municipal potable water after a period of establishment is complete. • The plants listed on Sheet L 1.0 are native to this climate, however, they will need to be watered after they are established. This credit can be obtained if plants are selected that will not need watering after they are established. If this is not possible, a variance to achieve this credit may be obtained if the following can be documented. Estimate the cost to specify landscaping that will not need to be watered or the cost to document the following information: Container plantings were selected over other types of landscaping to minimize the use of water and avoid the installation of an irrigation system. The types of plants selected for the containers are well adapted to the site, tolerant of climate, soils, and need minimum watering from municipal potable water after establishment. Plants were selected to he(p as windbreaks or decrease noise. A seasonal maintenance schedule has been planned to address specific times for pruning, watering, pest inspection, etc. In addition, mulching and composting will be used to maintain plant health.