New Dungowan Dam and Pipeline Community Information Session

New Dungowan

Dam and Pipeline

Community Information SessionLand use, contamination and soils and waste

• Acknowledgement of Country

• Introductions

• Background

• Project update

• Environmental Impact Statement

• Land use

• Contamination and soils

• Waste

• Questions

Agenda

Dungowan Dam wall construction 1954

On behalf of Water Infrastructure NSW

We would like to begin by acknowledging the traditional custodians of the lands on which we

meet today

We pay our respects to elders, past, present and emerging.

Acknowledgment of Country

Background: About the project Project drivers:

Increases in supply allocated to

Tamworth town water

Existing allocations for water

users maintained

New pipeline connecting the new

dam to Calala Water Treatment

Plant

Project Scope:

Project update

• Main line and pressure reducing valve stations design

100% complete

• Major orders placed for HDPE piping and valves

• Field investigations for EIS and Geotech are on hold

during lockdown

• Face-to-face engagement on hold during lockdown –

webinars continue

• All works that can be completed remotely continue

• Progress continues on the Final Business Case

Local business engagement

Insert updated dashboard

Know someone that hasn’t made it to a webinar yet?

Tuesday, 19 October

5pm

Online

Catch-up webinars

Meet the team | Project background | Project overview | Project stages | What to

expect and when | Environmental Impact Statement intro | Staying up to date

Environmental Impact Statement

Project Planning

Factsheets and feedback surveys live on

our website now!

www.water.nsw.gov.au/dungowan-dam


What is it?

Environmental Impact Statement The EIS will go on formal exhibition so you, the community, government agencies and the consent

authorities can make informed submissions on the project.

Before then, we want to talk to you about each draft technical report. This is so we can hear your feedback and answer your questions.

We will then consider your feedback and incorporate it where relevant before the EIS goes on public exhibition.

If you still have feedback when at this point, you can make a formal submission


Land use

What we assessed

• In addition to general investigations and assessment, six individual impacted

properties were inspected, and the landowners were interviewed.

• The properties were chosen to represent a range of geographical locations,

potential project impacts, and types of agricultural operations.

• Inspections looked at things like agricultural uses, current or potential biosecurity

risks, crop types and locations, soil characteristics and vegetation.

6


Land use

What we found

The impact of the project on agricultural productivity at a regional scale

will be small.

The land use assessment found that impacts to be managed will include:

• Individual landowner needs

• Land productivity

• Temporary or permanent changes on land

• Vehicles and machinery being on land

• Potential impacts on livestock

• Biosecurity hazards

• Rehabilitation of land


Land use

How would land impacts be managed?

• Working closely with landowners and businesses to agree and arrange reasonable changes to

cause the least disturbance.

• Use existing roads and tracks

• Be aware and mindful of livestock on or around land

• Close management of biosecurity

• Rehabilitating private land


Contamination and soils

What we assessed

The assessment identifies contaminants of

potential concern and affected areas and

where further assessments may be required.

This assessment involved project site

inspections as well as using available

historical and current records, aerial

photographs, topographic maps, and land title

information.


Contamination and soilsWhat we found

• Low to medium risk of disturbance of

contamination from historical mine

exploration.

• Low to medium risk of effects from a

former sheep dip site.

• Low risk of naturally occurring asbestos.

• Low risk of naturally occurring potential or

actual acid sulphate soils.

• Low risk of acid rock drainage impacts.

• Very low risk of widespread use of

pesticides/herbicides and

contaminated fill material.

• Very low risk of demolition waste or

contaminated soil

• Very low risk of widespread or

significant asbestos contamination.


Contamination and soils

How would contaminations be managed?

• Undertake further assessments to understand the extent of contamination.

• Assign a dedicated Environmental Management Team.

• Appoint an independent environmental auditor.

• Apply strict health, safety and environmental measures.

Measures could include:

• Specialised material storage and transport conditions.

• Materials tracking and records.

• Training and supervision.

• Decontamination processes.

• Management of surface water runoff.


Waste

What we assessed

Waste was assessed by identifying:

• How the project will produce waste.

• What kind of waste will be produced.

• What impacts the waste could have.

• How the impacts could be reduced.

• Opportunities to reuse waste.

• Options for disposing of waste.

Our assessments help us predict waste sources, plan ways to reduce or reuse it and assess disposal

options that reduce environmental impacts.


Waste

What we found

There will be four main types of waste produced

The project will manage

waste in six main ways.


Waste

How would waste be managed?


Waste

How would waste be managed?

In addition to standard waste management strategies, initial investigations have identified ways the

project could reuse materials to reduce waste, including:

• Reusing excavated rock from the spillway in the new embankment.

• Reusing materials from the decommissioned embankment to rehabilitate part of the old reservoir.

• Reusing around 280 tonnes of vegetation toward wildlife habitats.

• Processing and recycling around 13,200 tonnes of vegetation into compost and mulch.

• Reusing water in water trucks to spray areas that could be dusty.

Connect with us

[email protected].

gov.au

1800 318 045 New Dungowan Dam

project group

www.water.nsw.gov.au/dungowa

n-dam

We want your feedback

We would love to hear from you if you have any feedback, suggestions, or insights you can share.

Questions

Thank you

Documents

New Dungowan Dam and Pipeline Community Information Session