1. Fairfield University Cost Base Analysis Activity- CMMB
Grace Provenzano
P&G Sachets
● ¢3.5/packet yields 10 Litres
○ ¢7 for 2 packets yields 20 Litres
● 5000 people (20L/person) for a year
● 5000 people x $0.07 x 365 days = $127,750 per year for 5000 people
○ Add lines 4 (B. Travel), 8 (E. Other Direct Costs - vehicle rental/fuel &
maintenance), and 9 (E. Other Direct Costs - storage, distribution,and
transport)
○ Line 4 ($2,860), Line 8 ($9,499), Line 9 ($4,200) = $16,559 added in costs
per year
● $127,750 + $16,559 = $144,309 per year per 5000 people
● 10 year:
○ $144,309 x 10 = $1,443,090 cost after 10 years
Process Water Treatment
● Raw Water Treatment system
○ https://www.samcotech.com/how-much-does-an-industrial-water-treatment
-system-cost/
● 200 Gallons per minute (GPM) system roughly ~$975,000
○ 200G = 757.082L
● 5000 people x 20L x 365 days = 36,500,000 Litres needed for 5000 people
○ 525,600 Minutes/year x 757.082L = 397,922,299L per year produced
■ Greater than amount needed, serves a larger population/ allows for
growth of town (~50,000)
● Added $100,000 for cooling water system
● Added $215,000 (20% of $100k + $975,000) for maintenance and staff
○ $975,000 + $215,000 + $100,000 = $1,290,000 for ~50,000 people
2. ● 10 year:
○ $1,290,000 initial cost + ($215,000 x 9) maintenance/staff costs
■ $3,225,000 cost after 10 years
Borehole Project - 5000L Tank
● Installation cost = $24,479.40
● Maintenance every 3 years = $1,100
○ $367/year per borehole
○ $4,034/ year per 11 boreholes
● 400L/ hour extracted
(chrome-extension://oemmndcbldboiebfnladdacbdfmadadm/https://www.unicef.or
g/wash/files/Code_of_Practice_FINAL.pdf)
● $24,479.40 installation x 11 boreholes = $269,273.40 total cost
● 10 year:
○ $269,273.40 initial cost + ($4,034 x 9) maintenance
■ $305,579.40 cost after 10 years
The graph below plots the Y1 and Y10 data
● Closest intersection is between Y1 and Y10 for Borehole project (Y1:
$269,273.40), (Y10: $305,579.40)
