Resource Equivalency Analysis (REA) implication environmental of groundwater in Kupang East Nusa Tenggara

Abstract

This study aims to conduct an environmental assessment caused by the commercial use of groundwater by the community as landowners in Kupang Province of East Nusa Tenggara, Indonesia. REA methodology to assess and compensate for environmental damage. This method, developed by the National Oceanographic and Atmospheric Administration (NOAA), uses the scale of remediation required to compensate for past, current, and future damage. Therefore, the objective of this study was to design compensation approaches are the services approach (or the resources approach) and the valuation approach (the value-to-value and value-to-cost approach). The results show that the change in residential land is 0.16% or 25 ha. The total area of changed settlement/land built up has decreased the function of land, which was originally secondary/logged-over dry land forest to become settlement/land built up. Furthermore, there was a decrease in secondary/logged-over dry land forest to open field of 0.03% or 3.1 ha, so the total area of secondary/logged-over dry land forest decreased by 0.19% or 28.1 ha. The total present value is 149.54 DShaYs (Ha year's discount service). The value of this credit amount of compensation can be calculated at 246.89 ha. This means that it is sufficient for the restoration of 246.89 ha in 50 years with a recovery time of 10 years so that it is sufficient to restore the community for the loss of 247 ha. The cost per hectare is IDR 5,000,000.00. The compensation fee is IDR 1,235,000,000.00.