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Table 1

Weights and scores applied for the LoF and CoF index calculations

LoF index
CoF index
ScoreSC (–)Age (years)WQI (–)Energy density (kWh/MG of pumped water)aMaximum monthly water production (MG)aNumber of critical connections (–)
0.80 < SCRATIO ≤1.00 0–9 <50 <1,000 0–19.99 0–2 
0.60 < SCRATIO ≤0.80 10–19 50–99.99 1,001–2,000 20–39.99 3–5 
0.40 < SCRATIO ≤0.60 20–29 100–199.99 2,001–3,000 40–59.99 6–8 
0.20 < SCRATIO ≤0.40 30–39 200–299.99 3,001–4,000 60–79.99 9–11 
0 < SCRATIO ≤0.20 40+ ≥300 >4,000 80+ 12+ 
LoFwell AHP weights 0.431 0.132 0.437  0.648 0.352 
LoFwell+pump AHP weights 0.347 0.117 0.369 0.167 0.648 0.352 
LoF index
CoF index
ScoreSC (–)Age (years)WQI (–)Energy density (kWh/MG of pumped water)aMaximum monthly water production (MG)aNumber of critical connections (–)
0.80 < SCRATIO ≤1.00 0–9 <50 <1,000 0–19.99 0–2 
0.60 < SCRATIO ≤0.80 10–19 50–99.99 1,001–2,000 20–39.99 3–5 
0.40 < SCRATIO ≤0.60 20–29 100–199.99 2,001–3,000 40–59.99 6–8 
0.20 < SCRATIO ≤0.40 30–39 200–299.99 3,001–4,000 60–79.99 9–11 
0 < SCRATIO ≤0.20 40+ ≥300 >4,000 80+ 12+ 
LoFwell AHP weights 0.431 0.132 0.437  0.648 0.352 
LoFwell+pump AHP weights 0.347 0.117 0.369 0.167 0.648 0.352 

a1 MG (Million Gallon) = 3,785.4 m3.

Final AHP weight values are shown in italics.

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