Approximately 92% of households on Fongafale islet have access to septic tanks and pit toilets. However, these sanitary facilities are not built per the design specifications, or they are not suitable for the geophysical characteristics, which results in seepage into the fresh water lens and run-off into coastal waters. A project involving the South Pacific Applied Geoscience Commission (SOPAC) is constructing composting toilets and improving the treatment of sewage sludge from septic tanks on Fongafale in order to reduce the leakage from septic tanks into groundwater, and the ocean and lagoon. In November 2013 the World Bank announced US$6 million in funding to improve the operational safety of the Funafuti International Airport and associated infrastructure. An 800,000-litre water cistern will be constructed to improve storage of drinking water. Borrow Pits Remediation (BPR) project When the airfield, which is now Funafuti International Airport, was constructed during World War II, the coral base of the atoll was withdrawn to use as fill to create the runway. The resulting borrow pits adversely affected the fresh-water aquifer. In the low areas of Funafuti, the sea water can be seen bubbling up through the porous coral rock to form pools with each high tide. Since 1994 a project has been in development to assess the environmental impact of transporting sand from the lagoon to fill all the borrow pits and low-lying areas on Fongafale. In 2013 a feasibility study was carried out and in 2014 the Tuvalu Borrow Pits Remediation (BPR) project was approved. It will result in all 10 borrow pits being filled, leaving Tafua Pond, which is a natural pond. The New Zealand Government funded the BPR project. The project was carried out in 2015, with 365,000 sqm of sand being dredged from the lagoon to fill the holes and ultimately improve water and living conditions on the island. This project increase the usable land space on Fongafale by eight per cent. Tuvalu Coastal Adaptation Project Tuvalu has received funding from the Green Climate Fund (GCF) to develop the Tuvalu Coastal Adaptation Project (TCAP) which has the overall objective of reducing the vulnerability of Tuvalu to the impacts of coastal hazards associated with climate change. The TCAP is a plan to construct hard and soft coastal protection infrastructure to reduce inundation and coastal erosion on the islands of Nanumaga, Nanumea and Funafuti. The implementation of the TCAP on Funafuti is proposed to be