EPA Reports

Completed assessment reports are listed and summarised below and are available for download. Click the link to view and download archived reports.

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Note: Appeals are handled by the Appeals Convenor who is independent of the EPA. Information on preparing and lodging appeals, appeal reports and the Minister's decisions on appeals are available on the Office of the Appeals Convenor's website.


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No.Report
99

Factors affecting phosphorus Export from Coastal Plain Drainage into the Peel-Harvey Estuarine System, WA

Status: Final
Release Date: 1 June 1980
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98

The Fish Fauna of the Peel-Harvey Estuarine System

Status: Final
Release Date: 1 October 1980
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97

Aspects of the Biology of Molluscs in the Peel-Harvey Estuarine System, Western Australia

Status: Final
Release Date: 1 October 1980
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93

Report on Phyto Plankton

Status: Final
Release Date: 1 June 1980
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92

The Decomposition of Cladophora

Status: Final
Release Date: 1 June 1980
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91

Report on Cladophora

Status: Final
Release Date: 1 June 1980
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90

Report on sediments and organic detritus in the Peel-Harvey Estuarine System

Status: Final
Release Date: 1 June 1980
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89

The Peel Inlet and Harvey Estuary System Hydrology and Meteorology

Status: Final
Proponent: Department of Conservation and Environment
Release Date: 1 June 1980
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83

Borden Chemical Co resin plant at Bunbury

Status: Final
Proponent: State Energy Commission of Western Australia
Release Date: 1 September 1980
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82

Ord Hydro Power Development Project

Status: Final
Proponent: Department of Conservation and Environment
Release Date: 1 September 1980
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81

Kelsall Report

Status: Final
Release Date: 1 July 1980
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80

Princess Royal Harbour

Status: Final
Proponent: Department of Conservation and Environment
Release Date: 1 July 1980
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79

Guidelines for the Conservation and Management of Wetlands in Western Australia revised edition

Status: Final
Release Date: 1 July 1980
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78

Woodside Petroleum Development Pty Ltd North West Shelf Development Project - Production of Liquified Petroleum Gases

Summary: The Environmental Review and Management Programme prepared by Woodside Petroleum Development Pty Ltd for the North West Shelf Development Project was considered by the Environment Protection Authority and comments forwarded to the Hon Minister for Industrial Development on 3 September 1979.
Status: Final
Release Date: 1 June 1980
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77

Report by the Environmental Protection Authority on a Dredging Proposal at Pelican Rocks, Swan River Estuary

Status: Final
Proponent: Marine and Estuarine Water Quality Criteria Working Group
Release Date: 1 September 1979
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76

Water Quality Criteria for Marine and Estuarine Waters of Western Australia

Status: Final
Release Date: 1 April 1980
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75

Well mixed layer theory

Status: Final
Release Date: 1 April 1980
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74

A Technical Report on the Water Quality of Princess Royal Harbour, Albany WA

Summary: In response to a request by the Albany Waterways Management Advisory Committee, the Department of Conservation and Environment asked the Wetlands Study Group Laboratory, Botany Department, University of Western Australia, to participate with them in a survey of the water quality of Princess Royal Harbour and examine the effect waste discharge might have on this water quality.
Status: Final
Release Date: 1 July 1980
No Appeals
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73

A Study for Sound Management - a summary of the findings of the Cockburn Sound Environmental Study

Summary:

Cockburn Sound's protected waters, being adjacent to metropolitan Perth, have a unique value for the people as a resource: for recreational pursuits, for fishing, for heavy industry and as a harbour.

Aware that undesirable changes in water quality had begun to take place and concerned to maintain the Sound's suitability for multipurpose use, the State Government set aside $500,000 in 1976 to permit a three-year environmental study to be undertaken. The study's primary aim has been to assess the total impact of the various activities affecting the Sound, particularly to examine the effects of natural and man-made pressures on the aquatic environment. These man-made pressures have arisen from the continued rapid expansion of the Perth Metropolitan Area.

The Study is now complete and a comprehensive report has been prepared. It is a large document which has drawn on several scientific and detailed technical reports. This brochure summarises the work of the Study and its conclusions.


Status: Final
Release Date: 1 December 1979
No Appeals
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72

Dampier - Perth Natural Gas Pipeline

Summary: The EPA has concluded that the Draft ERMP has addressed the major areas of environmental impact and is an acceptable document. The Authority believes that there are no environmental factors to cause the State to unfavourably consider the project.
Status: Final
Proponent: State Energy Commission of Western Australia
Release Date: 30 November 1979
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71

Oil spills and the West Australian Marine Environment

Summary: This Bulletin describes current procedures in Western Australia made in response to possible adverse effects of spilt oil on the W.A. marine environment. In addition to the necessity for contingency arrangements for spills from marine transport there exists in W.A. the potential threat of oil pollution from offshore petroleum exploration activities. Marine resources have been identified and forty six environmentally sensitive localities nominated. Procedures for protection of these localities during offshore oil exploration have been formulated.
Status: Final
Release Date: 1 October 1979
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70

An Environmental Review of the 1979 Avon Descent

Status: Final
Release Date: 1 September 1979
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69

North West Shelf Development Project

Summary: The North West Shelf Joint Venture is currently carrying out a feasibility study of the North West Shelf Development Project. The Project comprises offshore gas/condensate production facilities, a marine pipeline and on onshore complex at South Withnell Bay to produce natural gas, liquefied natural gas (LNG) and condensate.
Status: Final
Proponent: Woodside Petroleum Development Pty Ltd
Release Date: 1 September 1979
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68

Kwinana Air Modelling Study - Status Report June 79

Status: Final
Release Date: 1 June 1979
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67

Hydrology, Nutrient Loading and Phytoplankton in Lake Joondalup

Summary:

Lake Joondalup is the focus for increasing urban development, with the establishment of the Joondalup Regional Centre of the Northwest Corridor, on the western shore of the lake (Stephenson, 1977).

As development proceeds, the lake itself will be subjected to many changes which will affect the lake's catchment, the composition of its waters and bottom sediments, its fringing vegetation, its aquatic plants, and its birdlife and other fauna.

The lake will be required to serve diverse functions: to provide an attractive landscape, to provide recreation, to serve as a fauna reserve and to absorb catchment run-off. Unless correctly managed, nuisances such as insect pests, aquatic weeds and noxious odours may develop within the lake system.

In order to manage the area it is necessary to have information about the nature and sources of water in the lake, the levels of nutrients (particularly nitrogen and phosphorus) in the water, and the relationships between these nutrients and aquatic plants.

This information should ideally be obtained from a long-term monitoring programme carried out during development, so that changes can be observed as they occur. Before such a programme is undertaken, however, it is advisable to examine, in the short term, the feasibility of carrying out an ongoing study.

This report presents the results of a feasibility study, commenced on a part-time basis in September 1978 and expanded to a full-time study in January 1979.


Status: Final
Proponent: R A Congdon
Release Date: 1 November 1979
No Appeals
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66

Control of mosquitoes and non-biting midges in Perth and outer urban areas

Summary:

A survey was undertaken to determine the extent of problems caused by mosquitoes and non-biting midges breeding in wetlands in the corridor of development south of Perth. The two mosquito species Aedes vigilax and Aedes camptorhynchus were found to be the major cause of nuisance.

These species breed (either together or separately) on the samphire heath tidal flats along the Swan, Canning, Serpentine, Murray and Collie rivers and also in tidal flats associated with the Peel, Harvey and Leschenault estuaries.

During the study Culex annulirostris and Aedes alboannulatus were identified as mosquitoes that may cause a periodic nuisance around the upper reaches of the Canning River, and around urbanised lakes. Non-biting midges were found to cause a nuisance in residential areas to the north east of Lake Forrestdale and to the north-west of North Lake and Bibra Lake.

Abate insecticide is the only larvicide used. It is employed for the control of both mosquitoes and non-biting midges. Dibrom 14 is also used against mosquitoes, as an aerosol directed against the adults.

The mosquito fish, Gambusia affinis, was found to be widespread and must contribute substantially to mosquito control.

Through a literature search, alternative methods of control were investigated, including alternative chemicals, biological control and source reduction. In this, Abate insecticide, its efficiency in mosquito control and its effects on the environment were evaluated. In comparison with other available insecticides, Abate has relatively low toxicity to non-target organisms and has been found to be acceptable. It is suggested that the source reduction control technique of ditching for control of species breeding on samphire heath, tidal flats, be considered for local evaluation.

It would appear unlikely that there are any further alternative control techniques that could be introduced for either mosquito or chironomid midge control under the local conditions.


Status: Final
Release Date: 1 November 1979
No Appeals
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65

An Inventory of Research and Available Information on Wetlands in Western Australia Revised from Chiffings, 1977

Status: Final
Proponent: A W Chiffings, 1977. J M Brown (Revision)
Release Date: 1 November 1979
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62

Wetlands of the Darling System, Wetland Reserves and their management

Status: Final
Release Date: 1 December 1979
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61

Wetlands of the Darling System, Wetlands in Conservation Reserves National Parks

Status: Final
Release Date: 1 December 1979
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60

Wetlands of the Darling System, The purposes and vestings of wetland reserves

Summary: Report and Recommendations of the Environmental Protection Authority
Status: Final
Release Date: 1 December 1979
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59

Wetlands of The Darling System, Wetlands in Recreation Reserves

Summary: Report and Recommendations of the Environmental Protection Authority
Status: Final
Release Date: 1 December 1979
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58

Kwinana Air Modelling Study Interim Review Report - Summary and guidelines for planning

Summary: Report and Recommendations of the Environmental Protection Authority
Status: Final
Release Date: 1 May 1979
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57

Pilot Chemicals Survey

Summary: Report and Recommendations of the Environmental Protection Authority
Status: Final
Release Date: 1 March 1979
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55

Kwinana Air Modelling Study - Status Report - December 1978

Summary: Report and Recommendations of the Environmental Protection Authority
Status: Final
Release Date: 1 December 1978
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54

Kwinana Air Modelling Study Workshop on March 2, 1978 Intensive Study Papers Presented

Summary: Report and Recommendations of the Environmental Protection Authority
Status: Final
Release Date: 1 December 1978
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53

Yeelirrie Uranium Proposal

Summary: The Environmental Protection Authority has closely examined the proposed development at Yeelirrie from the point of view of the impact of the project on the area, its flora and fauna, and the physiography and people.
Status: Final
Proponent: Western Mining Corporation
Release Date: 31 January 1979
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52

Progress reports on the Peel-Harvey Estuarine System Study

Summary: Report and Recommendations of the Environmental Protection Authority
Status: Final
Release Date: 1 October 1978
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51

Caves in Western Australia

Summary: Report and Recommendations of the Environmental Protection Authority
Status: Final
Release Date: 1 September 1978
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50

Wagerup alumina refinery proposal

Summary: Report and Recommendations of the Environmental Protection Authority
Status: Final
Proponent: Alcoa of Australia Limited
Release Date: 1 November 1978
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47

A review of public submissions received on the Wagerup ERMP

Summary: Report and Recommendations of the Environmental Protection Authority
Status: Final
Release Date: 1 September 1978
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46

Environment Western Australia: The Role of the EPA

Summary: Report and Recommendations of the Environmental Protection Authority
Status: Final
Release Date: 1 September 1978
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45

The Ashfield flats - Present and Potential land Use

Summary: Report and Recommendations of the Environmental Protection Authority
Status: Final
Proponent: Andrew Blair and David Blatchford
Release Date: 1 August 1978
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44

Bauxite mining in the Darling Range Western Australia - A Report to the EPA

Summary:

Alcoa of Australia Limited proposes to establish an alumina refinery at Wagerup, Western Australia. As required by the Alumina Refinery (Wagerup) Agreement and Acts Amendments Act, 1978, the Company submitted to the Minister for Industrial Development an Environmental Review and Management Programme (ERMP) in respect of the refinery to be constructed and the mining associated with it. The Minister has referred the Wagerup Environmental Review and Management Programme (WERMP) to the Environmental Protection Authority for their advice under Section 57 (1) of the Environmental Protection Act, 1971-75. Because the issues involved in the environmental assessment are complex, and some of the most important ever to face the State of Western Australia, the Environmental Protection Authority appointed a Technical Advisory Group to review the document with special reference to the following broad issues:

  • the potential increase in the salinity of stream base flow
  • the impacts of mining on the ecosystem of the Northern Jarrah Forest
  • the need for a determination of the long term land use objectives of the Darling Range.
The Technical Advisory Group was briefed on 28 June, 1978, and this report was presented on 4 August, 1978.
Status: Final
Release Date: 4 August 1978
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43

Notes on the chemical control of adult mosquitoes

Summary: There is now growing acceptance of the importance of wetlands to the environment of the Swan Coastal Plain. As well as providing habitats for water birds, estuaries, rivers, lakes and swamps are highly productive in terms of plant and animal life; and they have great scenic and recreational value. Less well understood is the capacity of wetlands to cleanse polluted waters of contaminants. In the local environment our lakes and swamps are surface expressions of the groundwater, thus the state of the lakes and swamps will reflect the condition of this enormously important resource.
Status: Final
Release Date: 1 November 1978
No Appeals
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42

Key to the Common Mosquito Species in the Perth Metropolitan area

Summary:

There are about 50 species of mosquitoes known to occur in Western Australia. Ten of these are found throughout the whole State, wherever conditions are suitable for them to breed. A further 16 species are restricted to areas north of Geraldton and 23 species occur only in southern areas. Only 11 of the 23 species found in the southern parts of the State are common around Perth.

While mosquitoes are regarded as pests in the Perth area because they cause discomfort and annoyance rather than because they transmit diseases, it is still necessary to take measures to control them in many places. If appropriate control measures are to be taken it is best to know what species of mosquito is causing the nuisance because different species have different responses to weather conditions and different swarming and biting behavior, and thus have different vulnerable points in their life histories. A good understanding of these vulnerable points enhances the development of economical strategies to combat the problem. The purpose of this guide, or key, is to enable that ready identification of adult mosquitoes as a first step towards the implementation of effective control programmes.


Status: Final
Release Date: 1 September 1978
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32

Research into the effects of Bauxite Mining on the Water Resources of the Darling Range

Summary: This report reviews the progress to August 1978 in a series of steering Committee research projects which are examining the effects of bauxite mining on water resources of the Darling Range, Western Australia. The natural environment of the Darling Range jarrah forest and the development of bauxite mining in the region have been adequately described elsewhere. However, key aspects relevant to the work of the Steering Committee have been reviewed in the early sections of this report. Particular emphasis is placed on the variation in quantities of soluble salts which are stored in the soils and also on the impacts, or predicted impacts, of bauxite mining on movement of these salts into water supply dams.
Status: Final
Proponent: Department of Industrial Development
Release Date: 30 September 1978
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1468

Environmental and health performance of waste to energy technologies

Summary:

Advice of the Environmental Protection Authority to the Minister for Environment under Section 16(e) of the Environmental Protection Act 1986

On 16 November 2011, the Minister for Environment wrote to the Chairman of the Environmental Protection Authority (EPA) and the Chairman of the Waste Authority, requesting that the two Authorities investigate the environmental and health performance of waste to energy technologies internationally.

This request sought information on:

  • legislation for the establishment and operation of waste to energy facilities, focussed on emissions, in jurisdictions where these facilities currently exist;
  • current emissions from established and operating best practice facilities; and
  • current and historical level of compliance of these facilities.

The Minister requested that the information gathered be from full-scale, commercial plants that process municipal solid waste (MSW) and from a variety of technology types.

To assist with this investigation, WSP Environment and Energy Ltd were engaged to undertake a technical review of waste to energy plants around the world. These technical reports are attached. The reports provide detailed information to address the issues identified by the Minister for Environment. This advice from the EPA and Waste Authority draws on the technical advice to make recommendations that are relevant to the Western Australian situation.

Appendices:

Summary Report – Waste to Energy - A review of legislative and regulatory frameworks, state of the art technologies and research on health and environmental impacts. (pdf 3.93 Mb)

WSP Waste to Energy Technical Report Stage One (pdf 1.16 Mb)

WSP Waste to Energy Technical Report Stage Two (pdf 5.83 Mb)

WSP Waste to Energy Technical Report Stage Three (pdf 581 kb)


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108

EPA Report on Conservation Reserves - System 7

Summary:

In 1972, the Environmental Protection Authority established the Conservation Through Reserves Committee with terms of reference -

"to review and update the 1962 recommendations of a sub-committee of the Australian Academy of Science (WA) with respect to National Parks and Nature Reserves of the State".

The CTRC divided the State into 12 Systems each representing a natural and demographic entity. The report and recommendations of the CTRC for all Systems other than 6 and 7 were made public during 1975.

This report is the EPA's "Red Book" recommendations on System 7 - the Kimberley.


Status: Final
Release Date: 9 September 1980
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102

Nutrient relations of the wetlands fringing the Peel-Harvey Estuarine System

Status: Final
Release Date: 1 October 1980
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101

Peel-Harvey nutrient budget

Status: Final
Release Date: 1 October 1980
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100

Systems analysis of an estuary

Status: Final
Release Date: 1 October 1980
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