Due to the small scale and nature of the PRCP, it is imperative for the proposed integrated water system to be culturally sensitive and functional in a developing country while meeting the design requirements of the client and the expectations of both the Port Resolution community and visitors. The evaluation of appropriate technologies for a stormwater management, potable water supply and wastewater treatment and disposal system is important in achieving these project objectives. This Feasibility Study examines of existing practices in Vanuatu and other technologies used in other developing nations in the Pacific and Asian regions to assess the practicability and benefit of their incorporation into the integrated water system for the PRCP.
The design specifications of the project were established on the basis of the requirements of the client and the Port Resolution community, information acquired from the literature and data and observations noted from the two week field investigation. As the PRCP is a unique, small scale project being developed in Vanuatu, it was expected that the proposed final system would need to be a simple design which is cost-effective, self-reliant and have low maintenance requirements. Most importantly, the system must be culturally appropriate and reflect the expectations of the Port Resolution community as it will be their asset.
For each evaluated technologies for the stormwater management, potable water supply and wastewater treatment and disposal systems, an evaluation matrix was developed to determine what system best satisfied the design requirements in comparison to the drawn conclusions. The concept behind the evaluation matrix was the lower the overall the ranking, the most appropriate the technology would be for the PRCP. For some systems, this was not the case.
Supplied architectural drawings were used to determine the peak design capacity of the proposed ecotourism resort. As the PRCP is still in the design and development stage, alterations are being made. Therefore, the Feasibility Study and Detailed Design of the final system were based on the finalised Main Building and bungalow plans prior to visiting the site in July, 2013.
The literature identified that stormwater management practices are not common in Vanuatu. Therefore, a range of conservative stormwater management methods were examined to determine their benefit for the project. These methods include guttering, retention pits, water diversion channels and stormwater harvesting. The client deemed it unnecessary for a stormwater management system to be implemented as it was claimed that the natural features of the site mitigated stormwater problem; however, the feasibility study was conducted to provide the client with insight into available options if was not the case.
An assessment of rainwater harvesting was completed as part of the investigation into stormwater management practices. The concept behind rainwater...