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 Department of Environment, Tonga

This National Water, Sanitation and Climate Outlook is a document that can be used to inform

 Department of Environment, Tonga

Different reports on freshwater supply, groundwater pertaining to Lifuka of Ha'apai, Tonga.

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An evaluation of water and sanitation in The Kingdom of Tonga, July 2011

The National Water, Sanitation and Climate Outlook for TOnga identifies the Government's and other stakeholder's priorities to address driving forces of change in these key areas. It is one of many steps required to guide the development and security of a safe water supply and sanitation facilities for the future of Tonga, and will ensure that efforts are focused on supporting sustainable development of water resources for all Tongans.

This report describes the drilling program undertaken during November and December 1997 in the
Pangai – Hihifo and Koulo areas on the island of Lifuka. The purpose of the program was to:
* install seven water salinity monitoring boreholes;
* provide additional training for the Ministry of Works (MOW) drilling crew in the methods used in
the installation of the monitoring system used in this program; and
* instruct the local Tonga Water Board (TWB) staff in monitoring procedures.

Most of the 3000 inhabitants of Lifuka live in four contiguous
villages and have been supplied with water from a well in the middle
of the island since 1976. On commencement of operation, the water
rapidly became too salty for human consumption. The majority of the
island is low-lying and consists of highly porous, uplifted coral
limestone. Hydrogeological assessment found the fresh-water lens to be
very thin and strongly influenced by tidal mixing, sea level changes and
drought. Comparison with the morphology of Bermuda led a search for

e conuence of climate change and seismic events has created signicant environmental problems in
Lifuka, an island of 2,400 people (2011 Census) in Tonga’s Ha’apai Group. e subregion experienced an
earthquake on 3 May 2006 that measured approximately 7.9 on the Richter scale. It resulted in subsidence
of 23 cm of Lifuka Island, eectively creating instant sea-level rise. Erosion had already been already been a
problem on Lifuka for some decades; in the past 40 years, Lifuka has experienced signicant coastal erosion

The Australian Government’s Pacific Adaptation Strategy Assistance Program (PASAP) aims to assist the
development of evidence-based adaptation strategies to inform robust long-term national planning and
decision-making in partner countries. The primary objective of PASAP is: ‘to enhance the capacity of partner
countries to assess key vulnerabilities and risks, formulate adaptation strategies and plans and mainstream
adaptation into decision making’ (PASAP, 2011). A major output of PASAP is: ‘country-led vulnerability

In December 1998, Phase Two of the groundwater pollution study in Tonga was completed. This
Report summarises the activities undertaken to complete the study and presents the outcomes. The
Report relates to the conclusion of field studies commenced in June 1997 that were not completed at
that time due to lack of funds. Field studies, laboratory work and preparation of the results for this
completion of the Phase Two were conducted between August and December 1998

 Department of Environment, Tonga

Annual reports showing arrivals and departures for a given year with breakdowns of migration, tourists, produced by the Statistics Department in collaboration with Department of Customs.

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 Department of Environment, Tonga

Various reports related to the 1996 Census carried out by the Department of Statistics

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 Department of Environment, Tonga

Various reports related to the 2006 Census carried out by the Department of Statistics

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 Department of Environment, Tonga

Various reports related to the 2011 census carried out by the Department of Statistics.

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 Department of Environment, Tonga

This EIA report had been prepared for the major development and upgrade of the inter-island domestic wharf located in Tongatapu Island.

 Department of Environment, Tonga

The development of the haul out and storage facility, especially catering to the requirements of visiting yachts and locally based commercial boats in the Vaipua area on the outskirts of Neiafu, Vava’u.

This EIA is therefore primarily concerned with development activities including the construction of a slipway (92m by 6m) and land clearance of surrounding vegetation as well as specific operational activities with potential negative environmental impacts.