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<br />, , <br /> <br />) <br /> <br />6. <br /> <br />conservation opportunities. Potential water savings and <br />resulting cost savings may be realized in domestic and <br />kitchen uses. <br /> <br />The following utility costs were used to compute the <br />potential savings of water-conservation measures. <br /> <br />Water cost of $0.60 per 1,000 gallons. <br /> <br />Wastewater costs of $1.66 per 1,000 gallons of water <br />used. <br /> <br />Electrical energy costs of $0.0609 per kilowatt-hour. <br /> <br />Natural gas energy cost of $0.340l per hundred cubic <br />feet. <br /> <br />-------OOmestic Use - The largest water usage 1den~1f1ed at the <br />facilities was domestic use, amounting to approximately 55% <br />of the total water use. Two water-conservation measures <br />could be implemented to reduce the domestic water consumption <br />) at the facilities, installation of flow restrictors on flush <br />valve toilets and 1.0 gpm faucet aerators on all sink <br />faucets. Some of these water saving efforts, such as the <br />installation of the flow restrictors for flush valve toilets, <br />have already begun. The following summary identifies the <br />potential water and sewer savings as well as estimated <br />investment costs for these modifications. <br /> <br />The installation of flowrestrictors on the flush- <br />valve toilets will reduce the average water <br />consumption per flush by 1 gallon. This would result <br />in an annual water savings of approximately 364.000 <br />gallons, or an annual cost savings for water and <br />sewer of $820. One time cost of these flow <br />restrictors is estimated at $990. <br /> <br />The installation of 1.0 gpm faucet aerators will also <br />result is water and sewer savings, along with energy <br />savings for heating the water. This would amount to <br />a water savings of about 338,000 gallons per year. <br />The water and sewer savings alone would amount to <br />about $860 per year, more than Off-setting the one <br />time cost of about $375 for these aerators. Energy <br />savings would be an added bonus. <br /> <br />Kitchen Uses - The kitchen area, although amounting to a very <br />small portion to total water use at these facilities, was the <br />only area where water leaks were noticed during the site <br />visits. The operation and maintenance of the kitchen is not <br />normally considered part of the duties of the building <br />