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Summary of Draft Lake Fenton/Lady Barron Creek Drinking Water Catchment Management Plan

The full version of the Draft Lake Fenton/Lady Barron Creek Drinking Water Catchment Management Plan can be downloaded as a PDF File (9, 212 Kb).

A summary of recommendations and invitation for public review and comment by 28 March 2000 (1, 800 Kb) can also be downloaded as a PDF file

Summary

The Draft Lake Fenton/Lady Barron Creek Drinking Water Catchment Management Plan has been developed by Hobart Water in consultation with a steering committee comprising members from: Department of Primary Industries, Water & Environment (DPIWE); Inland Fisheries Commission; Parks & Wildlife Service (PWS); Forestry Tasmania; Derwent Valley Council; Department of Infrastructure, Energy & Resources and the Derwent Valley community.

The catchment management plan presents a range of management actions that form the basis for immediate, short-term and future catchment protection. The primary aim of the catchment management plan is to present achievable management actions that will maintain the high quality of water in the Lake Fenton/Lady Barron Creek catchment and protect the natural and cultural assets of the catchment.

The catchment management plan provides an overview of the general characteristics of the catchment, the existing jurisdiction that covers the land and water resources of the area, and management actions related to the issues that directly affect or have the potential to directly affect water quality and quantity. The issues include potential turbidity increases resulting from road runoff, landslips, recreational activities, bushfires and forestry operations, and the presence of bacterial and pathogenic contamination of the catchment water resources.

Specific management actions of the Lake Fenton/Lady Barron Creek catchment management plan are:

Water monitoring

In response to suspected turbidity impacts from the Lake Dobson Road, a targeted water monitoring strategy has been proposed for major drainage lines. Details of the monitoring strategy will enable decisions to be made regarding appropriate locations and management actions for road maintenance and stormwater/snowmelt runoff.

Management of State forest

Requirement for ongoing negotiations with Forestry Tasmania to reach consensus on appropriate long-term management within the catchment to protect water quality.

Recreational activities

Prohibition of recreational activities such as swimming, fishing, boating and camping in the catchment in order to minimise the risk of bacteria and pathogens entering the water supply. Appropriate toilet facilities need to be planned for the area. Use of the Lake Fenton to Lake Webster track to be discouraged.

Education program

Introduction of an education program to inform PWS staff, visitors and locals of the existence and extent of coverage of the water catchment and the role they are expected to play in protecting it. This program will include the production of information brochures and installation of water catchment signs.

Access and safety considerations

Access to Lake Fenton, Lady Barron Creek and catchment is to be restricted through the minimisation of car parks in the catchment, construction of fencing where appropriate and installation of security gates on private access roads. Bushwalking is to be managed to minimise the risk of water contamination.

Hydrology program

Undertake a hydrology study of Lake Fenton to determine water inflows from Wombat Moor and water detention times and circulation characteristics within the lake. Such a study would provide an understanding of the residence time of pathogenic micro-organisms in the water supply system and the associated health risks.

Fire management

To protect catchment water quality, a bushfire management plan is to be developed by PWS and Forestry Tasmania in conjunction with Hobart Water for the catchment and surrounding land.

Cultural heritage managemen

The Lake Fenton dam and associated works form an early example of a drinking water supply scheme and should be subject to specialist assessment of cultural values and future management needs to conserve those values. Where any proposed works may impact on undisturbed ground, an Aboriginal heritage survey would need to be conducted.

Environmental flow

To conform with Hobart Water's environmental policy to minimise environmental impact, the effects of drawing water from Lady Barron Creek need to be determined. Under the Water Management Act 1999 the environmental flow requirements of Lady Barron Creek are to be determined by DPIWE staff in consultation with stakeholders.

Annual review

Implementation of several actions in this catchment management plan have been initiated through the cooperative involvement of stakeholders. A test of the effectiveness of the actions will come with continued water monitoring programs within the catchment and periodic performance review. The review process will involve the periodic re-convening of the Lake Fenton/Lady Barron Creek catchment management committee.