Attachment B - Engineering Technical Note · 132008.1128.04

                                                             SUNRISE BEACH RETIREMENT AND AGED CARE DEVELOPMENT




                                                                                                                    CONTINUED


Importantly, the original network analysis was carried out with an additional 10% contingency. The total EP from the
development was modelled off 602EP as nominated in Table 3. The proposed design reduces the EP allowance to 542.3 EP.
As such the proposed design falls within the current approved network model assumptions, resulting in no net impact on the
network.
Noting that the proposed design results in a reduction in GFA, but an increase in the number of beds within the facility, a
sensitivity check has been carried out on the EP allowance based on the increase in number of beds (from 96 to beds to 102
beds). This assessment has is provided in Table 4 below:
Table 4: EP comparison based on number of beds


                              Approved Design                                     Proposed Design
                                                          Total EP + 10%
                                   Total EP                                            Total EP           Net Difference EP
                                                           Contingency
   Aged Care Facility               233.7                       257                      248.3                   8.7

The total EP under the proposed design has been calculated by apportioning the original EPs up (96 to 102). The total EP under
this sensitive check is 248.3EP, which falls within the 257EP allowed for form this site in the original network model.
As such the proposed design results in no net impact on the water and sewerage network modelled in the Water and
Wastewater Network Investigation (18-001942-WER01(B)).

CONCLUSION:
This technical memorandum has been prepared to support the proposed Minor Change application for the Sunrise Beach RAC
development site. This memorandum provides information in relation to the engineering aspects of the proposed development.
Based on the above we note that the changes proposed are minor in nature and do not fundamentally effect the engineering
elements of the development, both internally and externally.
If you have any questions, please do not hesitate to contact the undersigned.
Yours sincerely
Calibre Professional Services Pty Ltd




Shaun Pilcher
Principal Engineer - Urban Development

ATTACHMENTS
1. Engineering Drawings




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