2005-050-RES WATER CONSERVATION PLAN

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" The TCEQ uses 20.5 gpcd as the most reliable figure to represent the "most likely" conservation scenario. This figure is based upon the estimate that by 2050, 90% of pre- 1990 homes, and all new homes will have been equipped with water conserving fixtures. The figure 21.7 gpcd is used as the "advanced" conservation scenario and is an estimate of the average savings that would result from homes equipped exclusively with water-conserving plumbing fixtures. This figure is considered "advanced" because in a typical city, 100% of homes would not be exclusively equipped with water-conserving fixtures. Results ofTCEQ data yields the following estimations: "Most Likely" Savings by 2050 - 20.5 gpcd "Advanced" Savings by 2050 = 21.7 gpcd Technical Potential Savin!?s Ran!!e = 20.5 to 21.7 !?Dcd III. Reducing Seasonal 'Vater Use: The Texas Water Development Board (TWDB) has calculated seasonal use as a percentage of average annual per capita use for East Texas (20%), West Texas (25%) and a statewide average of22.5%. Seasonal use is calculated by multiplying the average annual gpcd for each water system by the appropriate percentage. The technical potential for reduction uses 7% for the "most likely" scenario and 20% for the "advanced" scenario. Below is the resulting calculation: Annual average per capita use for Paris water system = 188.7 gpcd Geographical location = East Texas Seasonal use = (188.7 X 20%) = 37.74 gpcd Potential reduction in seasonal use (Most Likely scenario) = (37.74 X 7%) = 2.64 gpcd Potential reduction in seasonal use (Advanced scenario) = (37.74 X 20%) = 7.55 gpcd cd IV. Reducing Water Use through Public Education Programs: The technical potential for water conservation through public education programs is estimated to be from 2% ofthe average annual per capita use (most likely) to 5% 7