13.2 The Wallis Lake Estuary Management Committee - Great Lakes ...

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Wallis Lake Estuary Management Plan E.6.1 Employ a river keeper or other paid worker to maintain and restore vegetation in riparian zones E.6.2 E.6.3 M.6.1 Conduct a riparian Concentrate revegetation and restoration Implement the Lower vegetation assessment efforts in priority areas identified in E.6.2 Wallamba River rivercare plan It is preferable (but not essential – indicated by the dashed lines here) that a river keeper be employed (action E.6.1) to coordinate efforts to assess (E.6.2) and revegetate/restore (E.6.3) riparian vegetation and to implement the Lower Wallamba River rivercare plan. C.4.1 Develop best practice guidelines for human-dolphin interactions C.4.2 Consider erecting signage summarising boat operator guidelines developed in C.4.1 for when dolphins are encountered Best practice guidelines for human-dolphin interactions, including persons in water and in powered vessels (action C.4.1), need to be developed and adopted prior to their communication via signage at major boat ramps (action C.4.2). S.1.1 Conduct a contour study of the island/entrance area S.1.2 Prepare an REF/EIS and conduct urgent dredging operations It is important that an initial contour study of the lake (action S.1.1) be conducted prior to any dredging operations (action S.1.2) so that the rate of infilling can be monitored for future planning and cost/benefit analyses. S.2.1 Assess stormwater drains for impacts of sediment build-up S.2.2 Dredge or excavate sediment build-up at stormwater drains identified in S.2.1 Stormwater drains must be assessed and prioritised (action S.2.1) prior to dredging or excavation works (action S.2.2) to remove excess sediment build-up that is impacting upon aquatic habitat. 96
Wallis Lake Estuary Management Plan S.3.1 Continue investigations into establishing a permanent sand deposit area on Tern Island S.3.2-3 Prepare maintenance dredging protocols for oyster leases, navigation channels and stormwater drains AND rehabilitate Cockatoo and Godwin Islands Before any maintenance-dredging program is developed (actions S.3.2-3), a permanent sand deposit area must be operational (action S.3.1) to accommodate the dredged material. M.2.1 M.2.2-3 Assess and quantify island erosion Predict future island erosion and investigate installing appropriate bank protection structures An assessment of current patterns of island erosion (action M.2.1) will provide a benchmark against which to assess any possible benefits of future bank protection structures (actions M.2.2-3). 97
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13.2 The Wallis Lake Estuary Management Committee - Great Lakes ...

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