Replace diffuser on the jet pump every 6 years at a cost of $1.4 K per action (as per 

 Indian River Inlet). For Shinnecock, four actions will be required in the 30-year project 

 life: 



Action 1— P = 



$1.4K(P/F,7%,6) 







$1.4K(0.6528) 



$913.92 



Action 2--P 



$1.4K(P/F,7%,12) 







$1.4K(0.4264) 



$596.96 



Action 3— P = 



$1.4K(P/F,7%,18) 







$1.4 K(0.2788) 



$390.32 



Action 4--P = 



$1.4K(P/F,7%,24) 







$1.4 K(0. 1824) 



$255.36 





Present Value = 



$2,156.56 





Annual Value = 



$2,156.56(A/P,7%,30) 





= 



$2,156.56(0.0837) 





= 



$180.50 



d. Replace balance of jet pump every 6 years at a cost of $21.7 K per action (as per Indian 

 River Inlet). For Shinnecock, four actions will be required in the 30-year project life: 



Action 1--P 



Action 2--P 



Action 3— P 



Action 4--P 



$21.7 K(P/F,7%,6) 

 $21.7K(0.6528) = 

 $21.7K(P/F,7%,12) 

 $21.7K(0.4264) = 

 $21.7K(P/F,7%,18) 

 $21.7 K(0.2788) = 

 $21.7K(P/F,7%,24) 

 $21.7 K(0. 1824) = 

 Present Value = 



$14,165.76 



$9,252.88 



$6,049.96 



$3.958.08 

 $33,426.68 



Annual Value 



$33,426.68(A/P,7%,30) 



$33,426.68(0.0837) 



$2,797.81 



e. Replace 5-ft steel jet pump extensions every 8 years at a cost of $2 K per action (as per 

 Indian River Inlet). For Shinnecock, three actions will be required in the 30-year project 

 life: 



Action 1— P = 



$2 K(P/F,7%,8) 









$2 K(0.5664) 



= 



$1,132.80 



Action 2--P 



$2K(P/F,7%,16) 









$2 K(0.3212) 



= 



$642.40 



Action 3--P = 



$2 K(P/F,7%,24) 









$2K(0.1824) 



= 



$364.80 





Present Value 



= 



$2,140.00 



Appendix 1 Capital Replacement Costs, Alternative 2 



111 



