Appendix E - Wastewater Report

                            PROPOSED RESIDENTIAL SUBDIVISION
                            9A JIRRIMA CRESCENT, COOROIBAH




Text Figure 4: Proposed layout (Job No.: 62805/A, dated 8/06/2020)


4.0      EXISTING WASTEWATER INFRASTRUCTURE
The existing residence is serviced by an operational aerated wastewater treatment system, which is located
approximately 20 m south of the existing house. It is understood that the system is regularly serviced, with
onsite service tags indicating that the system produces Advanced Secondary standard effluent.
Treated effluent from the system is piped to a surface irrigation area (approximate 300 m²) located south of
the residence, adjacent to the eastern boundary. At the time of inspection there were no indications of
inadequate operation or failure of the system observed (e.g. wet, soft ground; irregular grass growth).
Text Figures 5 and 6 show the existing wastewater treatment infrastructure observed on site.




Text Figure 5: Current wastewater treatment system (aerated HSTP)




4 November 2020
Report No. 20333-001-Rev0                             3