Agenda - Council - 01/27/2004 - Laserfiche WebLink

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Table 13.7: Projected Wastewater Flows in RTC Commercial/Service Development Co~ercial (Exis~g H~. 10). 32.2 ] 2,000 ~ 64,400 C o~ercial 11.6 2,000 2~,;00 (5e¢¢e/C°nve~ence) Co~ercial (Shopping) 24.4 ~ 1,600 ~ ?,040 Mixed0se (RetaiVO~ce) 30.6 I 2,300 ~ 70,380 Civic Center 3.6 I I3,300 t 47,880 Busmess Ente¢fise ! 35.9 ~ 1,330 I 47,747 T~sit 4.5 ~ 1,330 ~ 5,985 Publi~2~en Space 58.2 ~ 1,500~ 87,300 Total D?eloped Area 201~ 1,320(2) ~ 385,932 (1) ProjeCted water usage based on average emstmg defamed per da3' including irrigation. (2) Average per acre water usage. Appendix I shows the water usage and pumping rates for 2002. Th/s information is combined with the above water usage projections for the RTC site plus the projected water use for the undeveloped Urban Growth Area to determine total projected water demand at 202Oand is summarized in Table 13.8. The projected water use for the undeveloped areas, excluding the RTC site, were based on the wastewater flow projections contained in Item 18 and Appendix G (Wastewater Data) and include a premium for irrigation. Table 13.8:2020 Urban Growth Area Projected Water Use RTC Development~z) 1.631 595 Future Northwest S ub-distr/ct 0.160 58 Future SouthWest S ub-distr/ct i 0.839 306 Future Rum River Distr'/ct Usage I 0.677 I 247 Sub-total Future Usage ' 3.307[ 1,207 Existing Service Area Usage 1.198 [ 437 2020 PROJECTED USAGE [ 4.505 I 1,645 (l) FutUre ,usage esnrnated based on projected [and use and includes msgatian (2) Sam of totals from Tables I8.6 and 18.7. Discussion of Results: Historic records show that overall per capita water usage (including both residential and commercial/industrial) in Ramsey averages between 130. and 150 ~d per capita. The total projected water usage for the RTC development is estimated to be about 1.631 MGD. Dividing tiffs number by the upper usage of 150 gpd y/elds an equivalent design population for the RTC of approximately 10,900. This 13-6