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HomeMy WebLinkAboutAppendix N pw://Carollo/Documents/Client/WA/Auburn/9466A00/Deliverables/Appendices/Appendix_Covers.docx City of Auburn Comprehensive Water Plan APPENDIX N SYSTEM ANALYSIS RESULTS Table N.1 - Valley Service Area Storage Evaluation 202120252035 Projected Retail MDD 9.5210.5111.41 Available Sources, mgd Coal Creek Springs 6.98.68.6 West Hill Springs 0.90.90.9 Well 1 3.23.23.2 Well 2 0.00.03.5 Well 3A/B 0.00.04.0 Well 4 3.73.73.7 Well 6 2.72.72.7 Well 7 0.02.55.0 B Street Intertie1.81.81.8 132nd Intertie 1 3.323.323.32 Total Source Capacity22.54 26.79 29.29 Redundant Source Capacity15.6318.1520.65 Reliable Source Capacity22.5426.7929.29 Offsite MDD Supply Academy Service Area1.291.351.44 Lakeland Hills Service Area0.520.000.00 Lea Hill Service Area2.502.632.92 Total Offsite Demands4.313.984.36 Net Redundant or Reliable 11.3214.1716.29 Required Storage, mg Operational0.240.240.24 Equalizing2.382.632.85 Emergency7.726.856.53 Fire Suppression0.960.960.96 Total Required Storage11.3010.6810.58 Existing Storage, mg Reservoir 14.804.804.80 Reservoir 23.433.433.43 Total Existing Storage8.238.238.23 Excess (Deficit) Existing Storage, mg(3.07)(2.45)(2.35) City of Auburn Comprehensive Water Plan 1 2021 2025 2035 Projected Retail MDD 9.5210.5111.41 Available Sources, mgd Coal Creek Springs 6.98.68.6 West Hill Springs 0.90.90.9 Well 1 3.23.23.2 Well 2 0.00.03.5 Well 3A/B 0.00.04.0 Well 4 3.73.73.7 Well 6 2.72.72.7 Well 7 2.5 2.55.0 B Street Intertie1.81.81.8 132nd Intertie 1 0.80.70.4 Total Source Capacity22.5424.1626.37 Redundant Source Capacity15.6315.5217.73 Reliable Source Capacity22.5424.1626.37 Offsite MDD Supply Academy Service Area1.291.351.44 Lakeland Hills Service Area0.520.000.00 Lea Hill Service Area0.000.000.00 Total Offsite Demands 1.811.351.44 Net Redundant, Reliable Supply 13.82 14.17 16.29 Required Storage, mg Operational0.240.240.24 Equalizing2.382.632.85 Emergency5.226.856.53 Fire Suppression0.960.960.96 Total Required Storage8.8010.6810.58 Existing Storage, mg Reservoir 14.804.804.80 Reservoir 23.433.433.43 New Storage0.00 1.001.00 Total Existing Storage8.239.239.23 Excess (Deficit) Existing Storage, mg(0.57)(1.45)(1.35) Shared Storage Lakeland Hills0.540.530.52 Academy1.211.070.87 Lea Hill0.000.000.00 Net Excess (Deficit) Existing Storage, mg 1.18 0.15 0.04 Table N.2 - Valley Service Area Storage Evaluation with Improvements City of Auburn Comprehensive Water Plan 1 Table N.3 - Academy Service Area Storage Evaluation 2013 2021 2025 2035 Projected MDD, mgd1.231.291.351.44 Available Sources, mgd Academy Pump Station 10.440.441.441.44 Academy Pump Station 21.081.081.081.08 Total Source Capacity1.521.522.522.52 Redundant Source Capacity1.521.522.522.52 Reliable Source Capacity1.521.522.522.52 Required Storage, mg Operational0.070.070.070.07 Equalizing0.310.320.340.36 Emergency0.941.060.180.36 Fire Suppression0.960.960.960.96 Total Required Storage2.282.411.551.75 Existing Storage, mg Reservoir 8A1.141.141.141.14 Reservoir 8B1.481.481.481.48 Total 2.622.622.622.62 Excess (Deficit) Existing Storage, mg0.34 0.21 1.07 0.87 City of Auburn Comprehensive Water Plan 1 202120252035 Projected MDD, mgd1.291.351.44 Available Sources, mgd Academy Pump Station 1 1.441.441.44 Academy Pump Station 21.081.081.08 Total Source Capacity2.522.522.52 Redundant Source Capacity2.522.522.52 Reliable Source Capacity2.522.522.52 Required Storage, mg Operational0.070.070.07 Equalizing0.320.340.36 Emergency0.060.180.36 Fire Suppression0.960.960.96 Total Required Storage1.411.551.75 Existing Storage, mg Reservoir 8A1.141.141.14 Reservoir 8B1.481.481.48 Total2.622.622.62 Excess (Deficit) Existing Storage, mg1.21 1.07 0.87 Shared Storage Valley-1.21-1.07-0.87 Net Excess (Deficit) Existing Storage, mg 0.00 0.00 0.00 Table N.4 - Academy Service Area Storage Evaluation with Improvements City of Auburn Comprehensive Water Plan 1 City of Auburn Comprehensive Water Plan 1 Table N.5 - Lea Hill Service Area Storage Evaluation 202120252035 Projected MDD, mgd2.502.632.92 Available Sources, mgd Green River Pump Station5.055.055.05 Lea Hill Pump Station1.731.730.00 132nd Ave SW Intertie3.323.323.32 Total Source Capacity10.1010.108.37 Redundant Source Capacity10.1010.108.37 Reliable Source Capacity10.1010.108.37 Required Storage, mg Operational0.060.060.06 Equalizing0.630.660.73 Emergency0.000.000.00 Fire Suppression0.960.960.96 Total Required Storage1.651.681.75 Existing Storage, mg Reservoir 4A0.590.590.59 Reservoir 4B0.880.880.88 Total1.471.471.47 Excess (Deficit) Existing Storage, mg(0.18)(0.21)(0.28) City of Auburn Comprehensive Water Plan 1 2021 2025 2035 Projected MDD, mgd2.502.632.92 Available Sources, mgd Green River Pump Station 5.055.055.05 Lea Hill Pump Station1.731.730.00 132nd Ave SW Intertie3.323.323.32 Total Source Capacity10.1010.1010.10 Redundant Source Capacity10.1010.108.38 Reliable Source Capacity8.388.388.38 Required Storage, mg Operational0.060.060.06 Equalizing0.630.660.73 Emergency0.000.000.00 Fire Suppression0.960.960.96 Total Required Storage1.651.681.75 Existing Storage, mg Reservoir 4A 0.830.830.83 Reservoir 4B0.880.88 0.92 Total 1.711.711.75 Excess (Deficit) Existing Storage, mg0.06 0.03 0.00 Table N.6 - Lea Hill Service Area Storage Evaluation with Improvements City of Auburn Comprehensive Water Plan 1 Table N.7 - Lakeland Hills Service Area Storage Evaluation 202120252035 Projected MDD, mgd0.780.830.89 Available Sources, mgd Well 50.940.940.94 Well 5A0.260.260.26 Terrace View BPS1.581.581.58 Total Source Capacity2.782.782.78 Redundant Source Capacity2.782.782.78 Reliable Source Capacity1.842.782.78 Required Storage Operational0.030.030.03 Equalizing0.200.210.22 Emergency0.000.000.00 Fire Suppression0.560.560.56 Total Required Storage0.790.800.81 Existing Storage Reservoir 5, mg0.930.930.93 Reservoir 6(1), mg 0.700.700.70 Algona Storage0.300.300.30 Total1.331.331.33 Excess (Deficit) Existing Storage, mg0.54 0.53 0.52 Notes: (1) Excludes 0.15 MG of storage owned by Algona. City of Auburn Comprehensive Water Plan 1 2021 2025 2035 Projected MDD, mgd0.780.830.89 Available Sources, mgd Well 5 0.94 0.940.94 Well 5A0.260.260.26 Terrace View BPS1.581.581.58 Total Source Capacity2.782.782.78 Redundant Source Capacity2.782.782.78 Reliable Source Capacity1.842.782.78 Required Storage Operational0.030.030.03 Equalizing0.200.210.22 Emergency0.000.000.00 Fire Suppression0.560.560.56 Total Required Storage0.790.800.81 Existing Storage Reservoir 5, mg0.930.930.93 Reservoir 6(1), mg 0.700.700.70 Algona Storage0.300.300.30 Total 1.331.331.33 Excess (Deficit) Existing Storage, mg0.54 0.53 0.52 Shared Storage Valley -0.54-0.53-0.52 Net Excess (Deficit) Existing Storage, mg 0.00 0.00 0.00 Notes: Table N.8 - Lakeland Hills Service Area Storage Evaluation with Improvements (1) Excludes 0.15 MG of storage owned by Algona. City of Auburn Comprehensive Water Plan 1