20150922 LPP Pump Station and GST Locations (Future Items)Lower Pressure Plane Pump StationSeptember 22, 2015ALTERNATIVESSITESANALYSIS
Presentation Agenda•Water Supply Evaluation Timeline •Recap Previous Options•Identify Alternative Sites•Site Analysis •Cost Comparison•Recommended Path Forward•Q&A
Water Supply Evaluation Timeline2005 –First W/WW Master Plan Shows All NTMWD Supply2010 –W/WW Plan Update Shows All NTMWD Supply7/2013 –Town Authorizes LPP Supply Study7/2014 –Meeting w/ UTRWD Finalizes LPP Study1/2015 –Town Authorizes Current LPP Alignment Study200520182018 –Projected In‐Service Date for LPP PS and EST
Lower Pressure Plane EvaluationCost ComponentsNTMWD(Evaluation)UTRWD(Evaluation)NTMWD (LPP Site Shift)UTRWD (Backup)Capital Improvement Cost$ 63,077,700 $ 48,856,200 $ 0M ‐$ 4M $ 5M ‐$ 7M30 year Pumping Costs(2011 Peaking Factor)$154,184,808 $168,005,118<$ 9M ‐$ 11 M>‐TOTAL$ 217 Million $ 217 Million $ 208M ‐$ 210M $ 222M ‐$ 224MEvaluation did not include Lower Bois d’Arc (NTMWD) or Lake Ralph Hall (UTRWD)
Recap –Pump Station LocationsPotential 2ndNTMWD Connection PointFM 1385DNTPrestonCoitCusterMove the Pump Station to this AreaOriginal Pump Station Location
Alternate Sites
Alternate Sites –Option 2Coit380
Alternate Sites –Option 3Coit380Rogers MS
Site Analysis•Pros to Options 1‐3–Less Total Pipeline Length–Second Connection w/ NTMWD–Lower Life Cycle Energy Costs•Cons to Options 1‐3–Requires New Property–Accelerated Capital Costs –Tank and Control Valve/Meter–Higher Tank Costs –Mostly Buried
Cost ComparisonsCost ItemOption 1 (LaCima/Willow Ridge)Option 2 (Richland & Prosper Commons)Option 3 (East of Rogers M.S.)Option 4 (Custer Rd. Site)Initial Capital $25.8M $28.2M $26.9M $21.7MFuture Capital $7.5M $6.7M $5.0M $9.5M50‐Yr. Pumping $8.6M $6.9M $6.2M $17.5MTotal $41.9 $41.8M $38.1M $48.7MCosts are based on high level concepts for comparison purposes in 2015 dollars. Future Capital only includes tank and control vaults since pump station capacity expansions are equal. Pipeline easement costs are not included. A area of 8 acres was utilized in all costs for PS property
Q&A