UPDATED 16.5.23 - 20210153 Maple St Civil Plans

                                                                                                                                                                                                                                                                                                                                                                    BIORENTION GARDEN NOTES:




                                                                                                                                     EXTENDED DETENTION
                                                                                                                                                                                                                                                            PLANTING SPECIES TO PROVIDE EFFECTIVE                                                                    1.  FILTRATION MEDIA TO BE IN ACCORDANCE WITH THE FAWB GUIDELINES FOR SOIL FILTER MEDIA IN BIORENTION




                                                                                                                                        NOMINAL 200MM
                                                                                                                                                                                                                                                            REMOVAL OF NUTRIENTS. PLANT VARIETIES                                                                        SYSTEMS, WATER BY BIORETENTION TECHNICAL DESIGN GUIDELINES AND AS4419 - SOILS FOR LANDSCAPING AND
                                                                                                                                                                                                                                                            AND PLANTING DENSITIES TO ARCHITECTURAL                                                                      GARDEN USE:
                                                            MAINTENANCE HATCH                                                                                                                                                                               SPECIFICATIONS                                                                                            1.1.   SATURATED HYDRAULIC CONDUCTIVITY: 200mm/hr PREFERRED
                                                            SECURE CAPPED END                                                                                                                                                                                                                                                                                         1.2.   PH:                                      5.5-7.5
                                                            WITH SCREWS                                                                                                                                                                                                                                                                                               1.3.   ELECTRICAL CONDUCTIVITY:                 <1.2 dS/m
                                                                                                                                                                                                                                                                                                                                                                      1.4.   NITROGEN CONTENT:                        <800mg/kg
                                                                                                                                                                                                                                                                                                                                                                      1.5.   PHOSPHOROUS CONTENT:                     <40mg/kg
                                                                    1 IN                                                                                                                                                                                                                                                                                              1.6.   ORGANIC CONTENT:                         3%-10%
                                                                           4 MA                                                                                                                                                                                                                                                                                       1.7.   PARTICLE SIZE DISTRIBUTION               CLAY AND SILT 5 - 30% (<0.05mm)
                                                                               X                                                                                                                                                   3
                                                                                                                                                                                                                            1 IN                                                                                                                                                                                      FINE SAND 5 - 30% (0.05 - 0.15mm)
                                                                                                                                                                                                                                                                                                                                                                                   VERY FINE SAND 5 - 30 % (0.05 - 0.15mm)
                                                                                                                                                                                                                                                                                                                                                                                                                      MEDIUM TO COARSE SAND 40 - 60% (0.25 - 1.0mm)
                                                                                                                                                                                                                                                            EXTEND GEOFABRIC 500MM                                                                                                                                    COURSE FINE SAND 7 - 10 % (1.0 - 2.0mm)
                                                                                                                                                                                                                                                             AND PIN UNDER TOPSOIL                                                                                                                                    FINE GRAVEL <3% (2.0 - 3.5%)
                                                                                                                                                                                                                                                                                                                                                                     2. FILTER MEDIA MUST BE FREE FROM WEEDS AND PROPAGATES.
                                                                                                                                                                                                                                                            1000mm FILTER MEDIA                                                                                      3. MEDIA SHALL BE INSTALLED AND COMPACTED LIGHTLY IN TWO LIFTS FOR DEPTHS OVER 500mm.
                                                                                                                                                                                                                                                            (0.45MM AVERAGE PARTICLE SIZE)                                                                           4. THE TOP SURFACE OF EACH LAYER OF MEDIA SHALL BE FREE OF LOCALISED DEPRESSIONS TO ENSURE EVEN
                                                                                                                                                                                                                                                                                                                                                                         DISTRIBUTION OF STORMWATER AVOIDING LOCALISED PONDING.
                                                                                                                                                                                                                                                                                                                                                                     5. TRANSITION LAYER TO COURSE SAND OF TYPICALLY 1mm PARTICLE SIZE DIAMETER WITH <2% FINES AND SIZED TO
                                                                                                                                                                                                                                                                                                                                                                         ENSURE D15 (TRANSITION LAYER) <5 x D85 (FILTER MEDIA).
                                                                                                                                                                                                                                                                                                                                                                     6. DRAINAGE LAYER TO BE COMPRISED OF FINE GRAVEL OF NOMINAL 2mm - 5mm WITH <2% FINES AND MIN
                                                                                                                                                                                                                                                            100mm COARSE SAND TRANSITION                                                                             7. A MINIMUM OF 50mm AGGREGATE TO COVER PERFORATED UNDERDRAINAGE PIPES.
                                                         MAINTENANCE HATCH                                                                                                                                                                                  FILTER MEDIA                                                                                             8. UNDERDRAINAGE TO BE SLOTTED RIGID PIPE (HDPE OR SIMILAR) WITHOUT SOCK OR GEOFABRIC. SLOT WIDTH OF
                                                         SECURE CAPPED END                                                                                                                                                                                  (NOMINAL SIZE 0.5 - 2MM)                                                                                     UNDERDRAINAGE TO BE LESS THAN 2mm.
                                                         WITH SCREWS                                                                                                                                                                                                                                                                                                 9. ALL JUNCTIONS AND CONNECTIONS TO BE APPROPRIATELY SEALED WITH GROUT OR WATERPROOF SEAL.
                                                                                                                                                                                                                                                                                                                                                                     10. IMPERMEABLE LINERS (WHERE SPECIFIED) MAY INCLUDE CLAY, GEOSYNTHETIC BENTONITE CLAY LINERS OR HIGH
                                                                                                                                                                                                                                                                                                                                                                         DENSITY POLY ETHYLENE (HPDE) LINERS, INSTALLED TO MANUFACTURERS SPECIFICATIONS. THE LINER MUST BE
                                                                                                                                                                                                                                                            NOMINAL 200mm GRAVEL DRAINAGE LAYER                                                                          KEYED INTO THE BATTERS AND TO THE EMBANKMENTS, AND SEALED AROUND PROTUSTIONS SUCH AS OUTLET
                                                                                                                                                                                                                                                            (FINE AGG., NOMINAL SIZE 2 - 5MM)                                                                            PIPES.
                                                                                   BIDIM A34 GEOFABRIC OR SIMILAR                    PROVIDE SLOTTED SUBSOIL DRAIN AT
                                                                                   TO BE WRAPPED AROUND                              MIN 0.5% GRADE TO PIT                                                                                                                                                                                                           11. PERMEABLE LINERS (WHERE SPECIFIED) MUST BE USED TO LINE THE OUTSIDE OF THE BIORETENTION SYSTEM. THE
                                                                                    WALLS AND BASE OF FILTER MEDIA                                                                                                                                                                                                                                                       LINE MUST EXTEND AT LEAST 500mm BEYOND THE TOP OF THE SIDES, MUST BE KEYED INTO THE BATTERS AND
                                                                                                                                                                                                                                                                                                                                                                         COVERED BY AT LEAST 200mm OF TOP SOIL.




                                                                                                                                 TYPICAL BIORETENTION AREA DETAIL
                                                                                                                                 NTS                       (REFER 054 FOR FURTHER DETAIL)




                                                             LOW FLOW JUNCTION WITH SCREW CAP DETAIL

                                                                                     ORIFICE PLATE DISK                                                                         OVERFLOW FROM
                                                                                     WITH 55mm ORIFICE                                                                          RAINWATER REUSE TANK
                                                                                                                               150Ø HIGH FLOW OUTLET
                                                 HIGH FLOW OUTLET                          TANK WALL                           AT 1.8M FROM BASE

                                                                                          RETENTION
                                                                                          LEVEL                                      25,000L RAINWATER TANK                                                                                          25,000L RAINWATER TANK

                                             SCREW ON ACCESS CAP


                                               OUTLET TO DRAINAGE                                                                                         ATTENUATION                                                                                         ATTENUATION
                                                         NETWORK                                                                                          VOLUME 25kL                                                                                         VOLUME 25kL




                              ORIFICE DISK TO BE GLUED INSIDE
                              JUNCTION. uPVC OUTLET FROM TANK TO
                              BUTT UP AGAINST ORIFICE DISK

                                                                                                                                                                                                               NOM. 150Ø PIPE




                                                                                                                                  INDICATIVE RAINWATER ATTENTUATION TANK DETAIL
                                                                                                                                   NTS




                                                                                             North Point   Approved                                                                                                                                                                                                                               Project Address                                                    Title
                                                                                                           BEN PARRY
                                                                                                           RPEQ 28084                                                                                                                                                                                                                             45 MAPLE ST, COOROY, QLD 4563                                     DRAINAGE DETAILS SHEET 1 OF 2

                                                                                                           For and on behalf of RECOR Pty Ltd.
                                                                                                           Scale                                                                                                                    ENGINEERING + PROJECT MANAGEMENT                                                                              Client Details                                                    PROJECT NAME:                                    Project Number   Sheet Size
                                                                                                                                                                                                                                    SUNSHINE COAST | BRISBANE | SYDNEY
 B    28/04/23   RFI UPDATE                                                  QT     BP                                                                                                                                             www.recorconsulting.com | ABN 89 647 469 707                                                                   MARK MELVILLE                                                     COOROY NDIS RESIDENTIAL 20210153                                    A1
 A    28/03/22   MCU ISSUE                                                   JAC   BRP
                                                                                                                                        AS SHOWN                                               COPYRIGHT © This drawing is subject to copyright in accordance with the agreement between RECOR Pty Ltd and RECOR's client. This                                                                                     DEVELOPMENT             Drawing Number                             Revision

                                                                                                                                                                                                                                                                                                                                                                                                                                            053                                          B
                                                                                                                                                                                             drawing shall only be used for this specific project. This drawing shall not be used for construction until marked as 'Issued For Construction' in

Rev   Date                   Revision Description                          Drawn Check                                          DO NOT SCALE, IF IN DOUBT ASK                                                                                              the revision description.