Updated EMP Stage 2_Grasstree Court April 2023

2023 Ecological Management Plan – Grasstree Court – Lot 9



     4. RECEIVING SITE REHABILITATION

4.1 Description and Tenure
The receiver site is located within the Girraween Sports Complex and Nature Refuge located at 100 Eenie Creek Road;
Noosa Heads (off Wallum Lane) and formally known as Lot 1 SP239726. This area is owned by Council ensuring that
the rehabilitation efforts will be preserved indefinitely and located within close proximity to the translocation site. A
formal survey in 2018 located the boundaries for the receiver site and treatment areas (FIGURE B2).

4.2 Treatment Areas
The area designated within this lot to receive the translocation treatments is approximately 3ha of degraded land
mapped as Category X (i.e. non-remnant) vegetation under Queensland state mapping.

The site consisted of a bare hillside in the southern portion (T1). The balance area comprises a weed infested area
with scattered/few emergent trees (T2).

The total area of the receiver site is approximately 3ha.

     •    T1 area is approximately 3000m2.
              o Consists of dune hillside, bare of vegetation with sandy, low nutrient soil.

     •    T2 area is approximately 27000m2.
              o Consists of slight slope, dominated with weedy understory and few emergent trees.

The surrounding vegetation consists of a similar regional ecosystem composition to the subject land. It is made up of a
50/50 ratio of RE12.2.5 and RE12.2.9.

Proximity to the development site, similar land zone, similar surrounding ecology, opportunities/desire 12 for
rehabilitation and long-term ecological benefit and protection justifies the suitability of the rehabilitation site.

4.3 Receiving Site Preparation and Capping
The receiver site has been prepared (in April 2021 and prior to any clearing works at the Lot 6). The receiver site is
ready prior to any clearing works on Lot 9 (Stage 2) of the project area. As at mid-2022, weed control over the balance
area has been under Council control.

The overall works involved weed removal from the surrounding buffer areas, weed removal from the T2 area, scraping
away the top layer of organic material at T2 area to expose clean soil substrate, installation of a mulch bund along the
bottom of the hillside to T2 area and placement of coir logs over T1 area to aid soil retention. Once translocated soil is
placed over entire T1 and T2 area, an irrigation watering system is to be installed.

Access has been granted from Council. Areas have been designated for equipment storage, staff parking, emergency
meeting point and emergency access are set up and signed. The TPZ of trees outside the boundary will have fenced
temporary with “NO GO” or similar signage. A secure storage/work compound has been established in the east.

The T1 area (open dune) has been stabilised with the use of coir logs (secured with stakes), natural vegetation
material and the planting of 350 plants (as tube stock) from nine species This has been completed in September 2022.
Irrigation to this area has positively assisted natural regeneration.

The T2 area has undergone extensive weed removal. An excavator was used to remove the bulk of the weedy lantana
which will be mulched on site. Native trees will be retained with minimum diameter at breast height (DBH) of 25cm.
Retained trees were managed in accordance with AS4970: Protection of Trees on Development Sites to ensure their
survival throughout the works. TPZ’s were established once the overhead height weed layer was removed and staff
could access the trees. All weed material will be mulched on site and used to create erosion control barriers around
the site where needed. The mulch will be treated for weeds via herbicide spray once laid in place. This was completed
in September 2022.




12 Note: part areas identified by Council as in need/preferred for rehabilitation.

                                                                                                                       27