2005-050-RES WATER CONSERVATION PLAN

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'. Conservation Measure Calculation Procedure Results Reducing unaccounted-for (Dry-year demand) X o to 1.87 gpcd uses (Unacc.-for percentage if over 15%, minus 15%) Reducing indoor water use 20.5 gpcd (Most likely) to 20.5 to 21.7 gpcd due to water-efficient 21.7 gpcd (Advanced) as plumbing fixtures determined bv the TCEO Reducing seasonal water Seasonal use (Avg. use X 2.64 to 7.55 gpcd use 20%) X 7% and 20% Reducing water use through Average use X 2% and 5% 3.77 to 9.44 gpcd I public education programs Reducing dry-year Dry-year irrigation use 2.04 to 3.88 gpcd irrigation use (Dry-year demand - Avg. use) X 10.5% and 20% Total Technical Savings 28.95 to 44.44 gpcd Potential To determine the long-term planning goal, these totals are subtracted from the illY: year water demand (208.1 gpcd for Paris in 2000. Year of initial adoption of Water Conservation Plan). Long-term planning goal = (Dry-year demand) minus (Total Technical Potential) = 208.1 gpcd - 28.95 gpcd = 179.15 gpcd ("Most Likely" conservation scenario) = 208.1 gpcd _ 44.44 gpcd = 163.66 gpcd ("Advanced" conservation scenario) cd These goals are based on a potential reduction in total municipal gallons per capita per day demand by the year 2050. Some of these conservation measures, such as retrofitting of water-conserving plumbing fixtures, will not be realized in the early years of the goal but will result in increasing benefit as we approach the year 2050 when more older homes are re-plumbed and future new homes constructed. A tentative schedule to achieve 100% of the goal by the year 2050 would be: 10% by 2010,17.5% by 2015, 25% by 2020, 37.5% by 2025, 50% by 2030,62.5% by 2035, 75% by 2040, 87.5% by 2045 and 100% by 2050. Prepared by: City of Paris Environmental Services Division, April, 2005 9 .: ' 'I;'