The 2020 State of Environment Report is the first for Papua New Guinea.
Various report by Asian Development Bank across various sectors in Papua New Guinea
In urban areas, responsibility for providing piped water and sewerage services in the nation’s capital, Port Moresby, lies with Eda Ranu, and for the remaining provincial and district towns with Water PNG (formerly the PNG Water Board). Service provision to these areas are estimated to be 89% access to safe water (little change from 87% in 1990), and 57% access to safe sanitation (down from 89% in 1990)1. Access to services in urban areas struggle to keep up in the face of rapid urban population expansion.
Environmental Protection Authority. Coastal Water Quality Report
Different reports on freshwater supply, groundwater pertaining to Lifuka of Ha'apai, Tonga.