08/0383 - Referral Agency Response - EPA [As Published] · 142008.383

Concurrence Agency Response

EPA Permit number: IPCC01117608

Agency interest: Coastal

Sand Shifting Activity

5. The sand shifting activity and/or associated activities must not cause adverse impacts on the natural
coastal processes of the region.

6. A maximum volume of 60,000m3 of sand may be removed from the borrowed areas within any twelve
(12) month period, provided it is consistent with the net natural littoral drift rates and does not affect the
other approval conditions.

7. Sand is to be only extracted from area labelled ‘Area of Sand Extraction’ and only deposited in area
labelled ‘Area of Sand deposition’ as shown in Figure 1 (Drawing 33020-8-01 E).

8. While the sand shifter can be operated anywhere within the 200m x 55m area depicted east of the river
mouth training wall, its location shall always be sufficiently seaward to provide sufficient beach width so
as not to have detrimental impacts on the dune and vegetation system. ‘The sand shifter is not to cause
any long term recession of the beach profile.

9. No sand is to be removed from the coastal dune system.
10. No sand shall be permanently removed from the active beach system.

11. | The sand shifting activity and/or associated activities must not result in changes to hydrodynamics, tidal
prism and tidal regime of the Noosa River.

12. All practical and reasonable measures must be taken to prevent the occurrence of by-catch associated
with the operation of the sand shifting activity and/or associated activities.

13. | The sand shifter is not to operate below a depth of 8 metres below the natural surface profile or the depth
required to maintain stability of the Noosa River Training wall (whichever is the lesser).

14. Sand shall be placed uniformly along the section of beach to be nourished using the discharge outlets
available and in accordance with the specified plans.

15. All deposited sand shall be clean and free of silt, clay, organic material or any other deleterious substance
and must be of a grain size compatible with the existing beach sand

Acid Sulfate Soils

16. For all works within the Noosa Estuary that may potentially expose acid sulphate soils, an acid sulfate soil
investigation must be performed in accordance with the QASSIT Guidelines (Ahern C.R., Ahern M.R. and
Powell B., 1998, Guidelines for Sampling and Analysis of Lowiand Acid Sulfate Soils (ASS) in
Queensland 1998, Queensland Department of Natural Resources and Mines) or subsequent versions
thereof, prior to commencing the construction works.

17. Construction and operation of the sand shifting facility must comply with the latest edition of the

Environmental Protection Agency’s /nstructions for the Treatment and Management of Acid Sulfate Soils,
2001.

18. Acid sulfate soils must be managed such that contaminants are not directly or indirectly released, as a
result of the construction and operation of the sand shifting activity and/or associated activities, to any
waters or the bed and banks of any waters.

Vegetation and Dune Stability

19. All works must be undertaken in a manner that minimises damage to the vegetation adjacent to the site.

20. The width of clearing of the vegetation for access and construction works is to be minimised and mature
trees are to be retained where possible by minor realignment of the works.

 

Page 4 of 7 ~ Environmental Protection Agency