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<br />MWSI Project <br />Phase II Conjunctive Use Summary Report - DRAFT <br /> <br />August 22, 1995 <br /> <br />APPENDIX A <br /> <br />Well Cost Spreadsheet Explanations <br /> <br />ROW NAME. <br />Explanation / Formula <br /> <br />WELLS REQUIRED. <br />production I (average Q per well · 1,61) <br /> <br />WELL COST' <br />average well depth · well drilling cost · wells required <br /> <br />WELL REDEVELOPMENT COSTS' <br /> <br />[ (well cost · 0.1) + (well cost · 0.0]) ] · inflation factor <br />inflation factor = I + [inflation rate · (current year - I) ] <br /> <br />PUMPING WATER LEVEL IN FT: <br /> <br />year I: static water level + (pumping rate / specific capacity) <br />years 2 - 20: previous years pumping water level + yearly water level decline <br /> <br />AVERAGE TDH (faTAL DYNAMIC HEAD) IN FT: <br />pumping water level + pumping water level · 0.1 + surface pressure · 2,307 <br /> <br />PUMP HP REQUIRED/WELL: <br /> <br />(pumping rate · average TDH) / (3960 · efficiency) <br />efficiency = 0,6 <br /> <br />WELL PUMP COST: <br />1995 · number of wells · [ (pumping rate · average TDH) /(3960 · efficiency) ] .75 <br /> <br />WELL PUMP REPLACEMENT COST: <br />(well pump cost · 0.45) · inflation factor <br /> <br />WELL & PUMP COST <br />well cost + well pump cost +m well redevelopment cost + well pump replacement cost <br /> <br />WELL PUMPING ENERGY COST <br /> <br />[ (1.023 · energy cost · average TDH · production) / 0.6 ] · inflation factor + <br />cost to bring power to well sites <br /> <br />26 <br />