ENVIRONMENTAL IMPACT STATEMENT OBERON EARTHMOVING Exec Summar · environmental impact statement oberon

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  • ENVIRONMENTAL IMPACT STATEMENT OBERON EARTHMOVING PTY LIMITED

    Executive Summary Middle Creek Quarries

    Report No.930/01

    ES-1

    R. W. CORKERY & CO. PTY. LIMITED

    Executive Summary

    INTRODUCTION

    This Environmental Impact Statement (EIS)

    has been prepared by RW Corkery & Co.

    Pty Limited on behalf of Oberon

    Earthmoving Pty Limited (the Applicant)

    to support a development application for the

    continued operation and extension of

    Middle Creek Quarries (the Quarry).

    The existing Quarry has been operated

    since 2014 under development consent

    DA 10.2010.66.1, which limits disturbance

    to less than 2ha and production to less than

    30 000m3. Figure A identifies the regional

    setting of the Quarry, approximately 3.5km

    west of Oberon on Lot 2 DP 1112479

    (50 Sewells Creek Road), referred to herein

    as the Project Site.

    The proposed extension of the Quarry

    would include progressively increasing the

    extraction area to approximately 15ha (see

    Figure B) and providing for transport of up

    to 250 000tpa of product.

    By virtue of total disturbance exceeding 2ha

    and production exceeding 30 000m3, the

    proposed development is considered

    designated under the provisions of

    Schedule 3(1) of the Environmental

    Planning and Assessment Regulation 2000

    (EP&A Reg). As Designated Development

    for the purpose of extractive industry, the

    Proposal is also classified as Regional

    Development under Part 4 of the State

    Environmental Planning Policy - State and

    Regional Development 2011 by effect of

    Schedule 4A(8) of the Environmental

    Planning and Assessment Act 1979 (EP&A

    Act). As Regional Development, the

    development application will be determined

    by the Joint Regional Planning Panel

    Western Region.

    Figure A Locality Plan and Local

    Setting

    A4/colour

    Dated 02/05/16 Inserted 17/05/16

    This EIS describes the proposed

    modifications to the currently approved

    operations (the Proposal), describes the

    environment within and surrounding the

    Quarry, presents the environmental

    safeguards the Applicant would incorporate

    into the design and operation of the Quarry

    and assesses the impacts (if any) that the

    safeguarded activities would have on the

    local environment.

    The EIS also evaluates the Proposal in

    terms of Ecologically Sustainable

    Development, justifies the Proposal in

    terms of biophysical, economic and social

    considerations and examines the

    consequences of not proceeding with the

    Proposal.

  • OBERON EARTHMOVING PTY LIMITED ENVIRONMENTAL IMPACT STATEMENT

    Middle Creek Quarries Executive Summary

    Report No.930/01

    ES-2

    R. W. CORKERY & CO. PTY. LIMITED

    Figure B Project Site Layout

    A4/colour

    Dated 04/05/16 / Inserted 17/05/16

  • ENVIRONMENTAL IMPACT STATEMENT OBERON EARTHMOVING PTY LIMITED

    Executive Summary Middle Creek Quarries

    Report No.930/01

    ES-3

    R. W. CORKERY & CO. PTY. LIMITED

    THE PROPOSAL

    The Proposal incorporates the following

    key components, identified as relevant on

    Figure B.

    An increase in the extraction area to

    approximately 15ha, further segregated

    into three separate cells.

    Cell 1: an area of approximately

    5.9ha (including the current

    extraction area) extending from the

    existing quarry.

    Cell 2: an area of approximately

    4.4ha incorporating the most

    elevated and northerly section of the

    ridge.

    Cell 3: linking Cells 1 and 2 and

    incorporating an area of

    approximately 4.7ha along the top of

    the ridge.

    An increase in the rate of extraction and

    production up to a maximum of

    150 000tpa with an expected average of

    80 000tpa.

    Campaign crushing and screening of the

    extracted rock (to suit customer

    requirements).

    Importation of:

    raw mulch (up to 25 000tpa);

    ENM (up to 50 000tpa); and

    treated drilling mud generated by

    hydro-excavation methods (up to

    60 000tpa).

    for stockpiling and sale, composting

    blending with extracted gravel, or

    application to the completed extraction

    area as part of rehabilitation of the

    Quarry.

    The combined production of gravel, fill,

    soil, mulch and other specialty products

    would not exceed 250 000tpa.

    Installation of various erosion and

    sediment control features to prevent

    uncontrolled and contaminated discharge

    from the Project Site.

    Progressive rehabilitation of the

    extraction area and other disturbance to

    create a final landform amenable to

    future agricultural, or other agreed, land

    use.

    The extraction operations would be

    undertaken in a similar manner to existing

    operations with erosion and sediment

    controls first established followed by

    vegetation clearing and soil removal (where

    practical) to expose the underlying rock.

    Any non-gravel overburden would be

    removed and stockpiled either for sale as

    select fill or replacement within the final

    landform followed by extraction of the

    gravel. Initially, the rock would be won by

    ripping (using a bulldozer), however, where

    the rock becomes too hard to win by

    ripping, the Applicant would use

    conventional drill and blast methods to

    fracture the rock before ripping and

    extraction.

    As the rock becomes harder at depth, and

    dependent on customer size requirements,

    crushing and screening of the gravel would

    be required. This rock would be loaded to a

    mobile crushing unit, initially located

    within the Crushing, Screening and

    Resource Recovery Area, to reduce the size

    and either separate into specific sizes or

    produce a graded products. Rock which is

    not loaded directly to the crushing unit

    would be placed in stockpiles for future

    crushing. Depending on the specifications

    required by customers, additional screening

    and/or blending with stockpiled overburden,

    imported soils or other products could be

    undertaken.

  • OBERON EARTHMOVING PTY LIMITED ENVIRONMENTAL IMPACT STATEMENT

    Middle Creek Quarries Executive Summary

    Report No.930/01

    ES-4

    R. W. CORKERY & CO. PTY. LIMITED

    Waste materials to be accepted on to the

    Project Site would be classified as follows.

    Organic (Woody) Waste (Raw Mulch).

    Excavated Natural Material (ENM).

    Treated Drilling Mud.

    Each would only be accepted in accordance

    with the relevant Resource Recovery Order

    issued under Part 9 of Protection of the

    Environment Operations (Waste)

    Regulation 2014 (POEO (Waste) Reg) and

    either:

    stockpiled for future sale (without

    modification) within 12 months of

    acceptance;

    applied to land in accordance with the

    relevant Resource Recovery Exemption

    issued under Part 9 of the POEO

    (Waste) Reg;

    screened and blended to produce a

    specialty gravel, fill or soil products; or

    composted.

    Screening / Blending

    From stockpiles, selected ENM and treated

    drilling muds would be screened to either

    remove large rocks and organic material, or

    produce a specific size fraction. The

    screened material would be stockpiled for

    sale or further blending with the Quarry

    gravel to generate a specific gravel/fill

    product.

    Composting

    From stockpiles, raw mulch would be

    chipped, shredded, mulched and screened to

    generate the specific size and consistency

    required for each product. Material

    designated for the production of compost

    would be placed in wind rows for

    pasteurisation (reduction in pathogens and

    plant propagules) and maturation (to

    biological stability) of the compost.

    The proposed composting process would be

    aerobic, to reduce the potential for odours,

    and segregated from other Project Site

    runoff, to prevent pollution of land or water

    off the Project Site.

    Quarry products would be despatched from

    the Project Site via Sewells Creek and

    Abercrombie Roads, towards Oberon and

    beyond. The transportation of quarry

    products would be undertaken

    predominantly using truck and dog trailers

    (50m3/32t), although larger vehicles (up to

    B-double arrangement) or smaller vehicles,

    such as rigid trucks, could be used.

    The Applicant would generally restrict

    extraction and processing operations to

    between 6:30am and 6:30pm, Monday

    Friday and 8:00am to 6:00pm on Saturday.

    Haulage operations are proposed to be

    undertaken 24 hours per day (to

    accommodate deliveries of waste materials

    from facilities which operate 24 hours per

    day).

    The Applicant would adopt a progressive

    approach to the rehabilitation of disturbed

    areas to ensure that, where practicable, as

    extraction is completed, a stable landform is

    finalised and vegetated. The final landform,

    whilst not a replication of the pre-quarry

    landform, would remain sympathetic to the

    local visual aesthetic of cleared grazing