r - part - usaid

costs applicabre to a3 area sxzk as the Say Region, ~ h e ~ a e
relatively Lam- .# - m .t~&er I o?: wey? ,,s have Seen constructed
relatively close together a$:d accessibPe over good roads, These
costs are shown in sIzmzrl- Ec,m in Table P*4.?, and in detailed
fom In Appendix 4.4.3. :he other version represe~ts the costs
applicable to aE area scch as the Central Range, where a few
wells are spread o ~ t aver r vagc area, end are accessible aver
extre~ely soor roads, These costs are s5own in sumary form in
?able 2-4-93, and in detailed fun In Appendix 4,4.4,
Three eleaents zake G; the a~zs21 operating costs of walls.
In the Bay Region, h e direcr cost of operating the pump
canstitutes 57% of Ebe total; rox:ine maintenance constitutes
afmast 8%; and major averhauls constitute alaost 35% (Figure
2+4.10)* The proportions are ngt sig~ificantly different for
the Cezcral Ranqa, though the actual casts are higher (Figure
2*4-11).
In the follovizg disc~ssion, the overall assximptions are
explained first, foLloxed by a detailed explanation sf the
assuaptions made for e~ck of the three elenents costed.
fonbining t constructioz costs, operation and maintenance
costs, an8 revenues coilecZed, esza3lks3es the amortization
potential, wkicb is discussed iz Section 4-3.
The variables znd asszspcions used in this analyqis are
basically the same as in tke well construction costing model,
2nd are *isczssed in Section 4.2.;. The assuziptions concerning
ve2iclc costs azd life expectancy $re as sec out in Table 9 of
Appe3dlces 4 .4.1 and 4.4.2.
The same wage rates as iz the yell zonstrcctian costing
nods;, wkich are sig2ifican:ly bigher than chose currently paid
to W3A skaff who are zct enployed cn =he Groxndwater Project,
kave been used fcr all staff except gz~p attendants. Using
actual w-" 40 salary rates xed~ces %he total cost of annual
operatic: and naintezexe for o x ciiesei-equipped well in the
3ay Region by So.Sk.2400 (YSS33). This reFresents 1% of tAe
:oral annl~al cost, and Is z3t, tkerefore, significant.
The naintenazce sched~les assuzed are ix line with those
rec~xnended in the well mai~tenance ~anuals produced by the
Fro j ect .
4.2.2. Opesating Costs.
Dperatizg CCS~S f~r a weL1 equl.p_=sd xith a diesel. puap are
considered to consist of rke wzges ?aid ro tke pump aztendant
and assistazt, tke cosz of fue: used by the puap, and the cost