Noosa Council Planning Report - 26 Sallwood Ct, Pinbarren. (3)

    Erosion and Sediment Control Inspection Report




Purpose of Meeting         Erosion and Sediment Control inspection

Project                    26 Sallwood Court, Pinbarren


Prepared By                Luke Hamilton                  Phone No     0412 739 706
Date                       4 March 2022

Present                    Kathy Ford                 Email    [email protected]

                           Luke Hamilton              Email      [email protected]

    Introduction

Aussie Environmental were engaged by Kathy Ford and Andy Roy to review the current level of
erosion and sediment control (ESC) on her property at 26 Sallwood Court, Pinbarren.

Scope and Purpose
Noosa Council as part of their Information Request (OPW21/0032) – Information
Request 4 “Provide an Erosion and Sediment Control Plan completed by a suitably
qualified person detailing erosion and sediment control methods required for the
proposed works.”

A site inspection was completed on site on 4 March 2022 by Certified Professional in Erosion and
Sediment Control (CPESC) being Luke Hamilton (Operations Manager for Aussie Environmental).
It was raining during the inspection with several large rain events (>300mm) occurring over the
prior two weeks. The completed works have held up well with some minor breaches as follows;


-     The drainage channel uphill from the completed works (between the culvert outlets and the
      completed operation works), stormwater breach the existing channel. This area requires silt build-
      up removal and additional rip-rap protection. Apparently, Noosa Council had advised no works to
      occur in this section of the drainage channel.
-     Stormwater did breach a garden bed when the dam over-flowed. Repairs were completed.

Drainage Controls.

-      Permanent drainage/channel protection matched existing rip rap protection which would have been
       hydraulically sized to the upstream catchment, slope and expected flows (i.e. D50=300-400mm).

-      The drainage channel uphill from the works (between the culvert outlets and the completed
       operation works) require removal of silt build-up and additional rip-rap (Rock) drainage protection.


Erosion Controls


-     Garden beds protected with a >100mm layer of organic mulch and planted out.

-     All other areas have been top-soiled and hydromulched with a turf mix