Att11 - Land Suitability (effluent) Report

                  Low plume (<500mm),
                                                                                               Distribution laterals with above ground
                                                                                                                                         Installation Notes:
                  large / heavy droplet dome                             Max spacing
                  sprinkler with max spray                               4000mm.               sprinkler heads.
                  diameter of <2000mm.                                                                                                   1. This drawing must be read in conjunction with the corresponding
                                                                                                     Minimum of 150mm cover material.    Future-Plus Environmental report.
                                                                                                                                         2. All work must comply with AS/NZ 1547, Queensland Plumbing and
                            N.S.L                                                                                                        Wastewater Code, Standard Plumbing and Drainage Regulation 2003,
                                                                                                                                         Plumbing and Drainage Act 2002 and local government guidelines.
                150mm min
                                                                                                                                         3. There is to be sufficient fall from the existing / proposed facilities to the
                                                                                                                                         treatment plant to enable sanitary drains to gravity feed to the connection
                                                                                                                                         point.
                                                                                                                                         4. Delivery pipe should be lilac stripe 25mm or similar polypipe and
                                                                                                                                         should be buried to a minimum depth of 150mm in good quality natural or
                                                                                                                                         imported topsoil.
                                                                                                                                         5. A filter is to be installed on the delivery pipe to prevent clogging.
                                                                                                                                         6. A check valve is to be installed on the delivery pipe.
                                                                                                                                         7. A distribution valve is to be installed (upslope of the irrigation area) to
                          For clay soils, the irrigation area is to be                   Irrigation area is to be planted with           provide even distribution to the irrigation area(s) and to the laterals.
                          scarified and treated with 1kg/m2 of                           non-intrusive, water-tolerant trees, shrubs,    8. Any depressions within the irrigation area are to be filled with soil of the
                          gypsum.                                                        groundcovers and / or turf to maximise          same category as Horizon A.
                                                                                         nutrient uptake and evapotranspiration.
                                                                                                                                         9. Laterals must be laid parallel with the natural contours of the land.
                                                                                                                                         10. Control valves are to be placed on each sprinkler to ensure even
                                                                                                                                         distribution.
                                                                                                                                         11. Sprinklers should be spaced no more than 4000mm apart and no less
                                         Diversion Drain /
                                         Mound
                                                                                                                                         than 2000mm from the irrigation area boundary.
                                                                                                                                         12. Irrigation areas should be ripped to a minimum depth of 400mm
                                                                                                      Low plume (<500mm),
                                                                                                                                         where possible.
                                                        Cut Off Drain
                                                                                                      large / heavy droplet dome         13. A diversion drain / mound is to be constructed upslope of the irrigation
                                                                                                      sprinkler with max spray           area.
                                                                                                      diameter of <2000mm.               14. A retention mound is to be constructed downslope of the irrigation
                                                                                                                                         area.
                                                                                                                                         15. All stormwater is to be diverted away from the proposed irrigation
                                                                                                                                         area.
                                                                                                                                         16. If applicable, any existing sewage treatment plant(s) and effluent
                            Sloping Site - greater than 1:10                                                                             disposal system is to be decommissioned.
                            Where slope exceeds 10%, advice is to be sought from FPE prior to installation.                              17. Where not already established, the irrigation area is to be planted with
                                                                                                                                         non-intrusive vegetation that is tolerant to wet conditions and has a high
                                                                                                                                         evapotranspiration capacity. Seek advice from your local nursery.
                                                                                                                                         18. Where not already established, turf or mulch is to be applied to the
                                                                              STANDARD DRAWING                                           irrigation area.
                                                                         Surface Spray Irrigation System                                 19. The boundary of the irrigation area should be clearly delineated (e.g.
                                                                                                                                         through planting) to deter human and animal access.
                                                                                                                                         20. All vehicles and hooved animals are to be kept off the irrigation area.
                                                                                                                                         21. A minimum of two warning signs should be placed within each
                                                                                          Not to Scale.                                  irrigation area with wording such as ‘Recycled Water – Avoid Contact –
FPE Ref: WW02
                                                                         Figure measurements to take precedence over scale               DO NOT DRINK’.
                                                                                         measurements.