Attachment I - Updated Engineering Report & SWMP

2.0    EXISTING SITE CONDITIONS

The site is located on 30-32 Doonella Street, Tewantin (Lot 32 RP893427 and Lot
903 T 1631). At present the site is vacant and is covered by grassed vegetation.
The site is approximately 2539m2 with a slope from the North to South at
approximately 6.5% towards Doonella Street frontage into existing stormwater
infrastructure. The site historically contained residential/holiday dwellings and
hardstand parking areas.


3.0    BULK EARTHWORKS

       3.1    Cut and Fill and Erosion/Sediment Control

       The proposed development will require cut to spoil offsite to create a
       building platform for the proposed semi-basement and building structures.
       Approximately 2,500m3 of spoil will be carted offsite and disposed of
       legally.

       An erosion and sediment control plan will be prepared prior to the
       commencement of construction.

       3.2    Potential Acid Sulphate Soils (PASS)

       The sites bulk earthworks are above RL 5.0m and therefore an acid sulphate
       soils investigation is not warranted.


4.0    SERVICES

       4.1    Water Reticulation

       The proposed development shall be serviced by an existing 100mm water
       main within the northern verge of Doonella Street. A 50mm domestic meter
       and 100m fire service meter are proposed by hydraulics consultant Pdd.
       Internal sub metering will be provided for commercial and residential
       tenancies.

       Refer to preliminary infrastructure drawings in Appendix B for service
       connection locations.

       4.2    Sewerage

       The proposed development is to be serviced by the existing 150mm gravity
       sewer main which runs along the northern verge of Doonella Street. A
       single 150mm stub shall be provided from an existing manhole on the south
       east corner. Internal plumbing shall be provided with this development.
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A6035/21/Engineering Report/30-32 Doonella Street, Tewantin                  Page 2 of 9
May 2021    WM/tk
                                    Alta Projects P/L