Complete Book PDF (4.12MB) - World Bank eLibrary

Annex 4.1 Ethiopian RWS Borehole Study and Perception Survey Results
172
Table 4A.1
Summary of Ethiopian RWS Borehole Construction Variance Study and Perception Survey Results
Site information Depth information Variance Final scores
Suggested
depth
Actual
depth
Depth
invoiced
compared
Actual
depth
compared
Material
type
invoiced
Diameter
invoiced
compared Postconstruction
community
perception
in
from Depth to actual to specified compared to actual
of
specification survey invoiced depth (percentagecentage)
depth (per-
to (percent-
survey Borehole construction
Site Woreda Driller (meters) (meters) (meters)
actual age) variance a outcomes b standards c
0 Omo Nada Private 70 70.0 70 0 0 L 0 low
driller
1 Omo Nada Private 60 excellent good poor
driller
2 Sokoro Private 60 52.5 60 15 –13 L 0 low excellent good poor
driller
3 Kersa Regional
146.0 3 0 low moderate good
enterprise
4 Amaya NGO 60 18.5 55 197 –69 M 0 high problems good good
5 Amaya Private 50 52.0 60 15 4 L 0 low problems good good
driller
6 Amaya NGO 60 44.8 54 21 –25 L 0 moderate excellent good poor
7 Amaya Private
47.4 57 20 L 0 moderate problems good good
driller
8 Nanno failing moderate good
9 Goru Private 60 58.0 57 –2 –3 L 0 low excellent poor good
driller
10 Amaya NGO 60 32.4 47 45 –46 L 0 high problems good poor
11 Amaya NGO 60 42.9 50 17 –29 L 0 moderate excellent good good
50 52.3 54 3 5 L 0 low problems moderate good
12 Amaya Private
driller
community
development
process d