Effluent Disposal Approval northern unit

                                        TREATMENT PLANT APPROVAL 15/2019
                                            Plumbing and Drainage Act 2018
                                                  Amendment No.1
                 Approval

                   1. The Advanced Enviro-septic (AES) (“the System”) described in the Specifications and
                      Drawings in the attached Schedule and manufactured by Presby Environmental Inc.
                      Whitefield, New Hampshire (“the manufacturer”) and supplied by Chankar
                      Environmental Pty Ltd (ACN 148 175 455) (“the supplier”) has been assessed in
                      accordance with the Queensland Plumbing and Wastewater Code (QPW Code) dated
                      15th January 2013.

                 2.     The supplier applied to the Chief Executive on 12 February 2020 for an amendment to
                        the system as specified below.

                 3.     Approval is granted for previous Condition 10, to be amended to state: ‘A septic tank
                        conforming to AS/NZS1546.1 and sized in accordance with AS/NZS1547 for the
                        influent hydraulic load from the dwelling is a component of the system’.

                 4.     Approval is granted for an advanced secondary quality wastewater treatment system,
                        subject to compliance by the manufacturer/supplier with the requirements of the
                        Plumbing and Drainage Act 2018 and the conditions of approval detailed below.

                 5.     This approval, the conditions of approval and the Schedule comprise the entire
                        Treatment Plant Approval document.

                 6.     Any modification by the manufacturer/supplier to the design, drawings or
                        specifications scheduled to this approval must be approved by the Chief Executive.

                 Conditions of approval
                 7.     The manufacture, installation, operation, service and maintenance of the systems
                        must be inconformity with the conditions of this Treatment Plant Approval.

                 8.     The advanced secondary quality wastewater treatment system, which is an example
                        of the approved systems, may only be used on premises that generate per day:

                            a) a maximum hydraulic loading of 90L / 3 metre length of AES piping system
                            b) a maximum organic loading of 240mg/L BOD5
                            c) a maximum total suspended solids of 300mg/L.

                   9. The system must continue to meet the requirements of advanced secondary quality
                      wastewater treatment system, producing the following effluent quality —

                            a) 90% of the samples taken must have a BOD5 less than or equal to 10 g/m³
                               with no sample greater than 20 g/m³.
                            b) 90% of the samples taken must have total suspended solids less than or equal
                               to 10g/m³ with no sample greater than 20g/m³.
                   10. Each system must be serviced in accordance with the details supplied in the owner’s
                       operation and maintenance manual.
                                                                                    Treatment Plant Approval
                                                                                Approved by: Lindsay Walker
                                                                                Delegated Authority
                                                                                Department of Housing & Public Works
Document Set ID: 21598877
Version: 1, Version Date: 30/08/2021