97 results
 Department of Environment, Tonga

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

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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

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

This EIA report has thus been prepared by the Ministry of Environment and Communications with technical assistance from the JICA Preparatory Survey. The requirements stipulated in the Environmental Impact Assessment Regulations, 2010, and JICA’s “Guidelines for Environmental and Social Considerations (2010)” were referred in the process.

 Department of Environment, Tonga

The Tonga State of the Environment 2018 report has been developed to answer three key questions related
to the environment of Tonga, and is based on seven thematic areas:
• What is the current condition of the Tongan environment?
• What are the risks the Tongan environment faces and what measures have been put forward to minimise them? This could provide lessons for Tonga.
• Where is the environment of Tonga headed based on the assessed thematic areas?

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 Secretariat of the Pacific Regional Environment Programme

This dataset hosts 31 individual environmental indicator assessments that are in the **State of Environment and Conservation in the Pacific Islands : 2020 Regional report.**

Regional indicators are used to understand the current status of conservation in the region and to establish a process for periodic reviews of the status of biodiversity and implementation of environmental management measures in the Pacific islands region.

Each Pacific regional indicator is assessed with regard to:

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DEFINITION : Trend in consumption of ozone depleting substances (ODS)

PURPOSE : Tracks countries progress to phasing out ODS. Ozone depleting substances destroy the earth’s ozone which protects the earth from UV radiation

DESIRED OUTCOME : Negative trend in ODS consumption

DEFINITION : Trend in percentage production of energy from renewable sources

PURPOSE : Energy generation is a major source of GHG emissions. Pacific island countries also have limited capacity for oil and gas storage and are therefore highly vulnerable to fluctuations in fossil fuel price and availability

DESIRED OUTCOME : Positive trend in energy production from renewable sources

DEFINITION : Annual per capita generation of municipal solid waste

PURPOSE : Accurate measurement of per capita waste generation for better waste management

DESIRED OUTCOME : Stabilisation and subsequent negative trend in household waste generated