Table 1 Summary of data collected in 2014, 2015, and 2016 and analysis variables
Data collected | 2014 | 2015 | 2016 |
|---|---|---|---|
Borehole GPS coordinates | ✓ | ✓ | ✓ |
Hand-dug well GPS coordinates | ✓ | ✓ | |
Surface water access point GPS coordinates | ✓ | ✓ | |
Household GPS coordinates | ✓ | ||
Borehole functionality | ✓ | ✓ | ✓ |
Borehole water quality | ✓ | ||
Borehole payment method | ✓ | ✓ |
Analysis variable | Type | Definition | |
|---|---|---|---|
Functionality status | Binary | 1 = functional; 0 = not functional | |
Groundwater quality cluster | Categorical | control = no identified water quality problems; high salinity = elevated total dissolved solids concentration; high iron = elevated iron concentration | |
Payment mechanism | Binary | 1 = proactive; 0 = reactive or none | |
Population served within 300 m | Binary | 1 = 600 + people; 0 = ≤ 600 people | |
Another water source within 300 m | Binary | 1 = present; 0 = absent |