A Rainwater Harvesting and Treatment System for Domestic Use and Human Consumption in Native Communities in Amazonas (NW Peru): Technical and Economic Validation

Table 9

Economic analysis of catchment systems.

Benefits and costs
Initial investment	S/2,600
Systems maintenance (year)	S/70
Benefits (annual)	S/1,260
NPSV	S/1,911
SIRR	36%
B/C	S/1.73

NPSV = net present social value, SIRR = social internal rate of return, and B/C = benefit cost.