Household
|
4-wave Panel
|
Zarqa and Amman (from Jordan Dept. of Statistics (DoS))
|
Survey geocodes selected based on ex ante matching of treated
and control zones, using Census data
Random sampling within sample geocodes
Replacements selected from sample geocodes
|
WNP only – WNP only control
WWNP only – WWNP only control
WNP+WWNP – WNP+WWNP control
Distinct control groups from:
Zarqa
Amman
|
Representative of sample geocodes at baseline, based on comparisons to
Census and other sources
|
3359
3416
3596
3662
|
Enterprise
|
2-wave Panel
|
Zarqa and Amman (from DoS + household referrals)
|
Same geocodes as household sample
Random selection within sample geocodes
Referrals for informal enterprises
Replacements selected from closely neighboring enterprises
|
Same as household (though analysis uses all controls for each group to
maximize statistical power)
|
Representative of sample geocodes at baseline
Informal enterprises likely under-represented (due to low referral
rates)
|
345
418
|
Farm
|
3-wave Panel
|
Jordan Valley and highlands (from DoS)
|
Survey zones selected based on expected differences in exposure to
treated wastewater
Random selection in sample zones
Replacements selected within zones
|
Five locations:
Highlands u/s KTD (↑ river flow)
JV1 North (↑ Non-Compact WW)
JV2 Mid-North (↑ Compact WW)
JV3 North-Central (↑ Compact WW)
JV4 South-Central (little change in WW)
|
Representative of sample zones
|
551
539
539
|
Refugee
|
Single cross-section
|
UNHCR registration list for Zarqa and Amman
|
Priority survey geocodes selected according to household sample, with
augmenting based on treatment status outside hh geocodes
Random sampling by treatment status
Referrals for unregistered refugees
|
Treatment status:
WNP only
WWNP only
Both WNP and WWNP
Controls in Zarqa
Control Amman
|
Representative of registered population in sample areas
Unregistered population likely under-represented (due to low referral
rates)
|
1617
|
Water vendor
|
Single cross-section
|
Shops: Ministry of Health list + canvassing
Tankers: Canvassing
|
Full sampling from canvassed locations
|
None
|
Representative of water vendors in Zarqa and East Amman in 2018
|
320
|
Meter testing
|
Repeat cross-section
|
Meter listing in selected zones
|
Zones selected for variation in JC status, elevation, pressure,
throughput (for survey 1), and JC status and meter replacement (for
survey 2)
Random sample of meters within selected zones
|
Compact and non-Compact zones
|
Not representative
|
37
223
|
Water loss testing
|
Single cross-section
|
Canvassing of land plots in selected areas
|
“Well isolated” zones selected (as suggested by utility)
Comparison of meter registered data to bulk meter inflow
Random sub-sample of meters evaluated to adjust for meter error
|
Meter error testing sub-sample stratified by meter replacement
status
|
Not representative; only relevant to “well isolated” zones
|
1797
|
Key informant interviews
|
Single cross-section
|
Listing of key JC stakeholders
|
Contact to all listed stakeholders
Replacements included as suggested by stakeholders
|
None
|
Representative of institutions, but likely not all perspectives
|
22
|