Original source · versioned page text
A6880 - Eng - June 2024
Original PDF page 18, section 1. The text section number identifies this passage in the reader.
BIORETENTION BASIN NOTES: 150 150
· VEGETATION TO COMPLY WITH THE REQUIREMENTS OF APPENDIX "A" OF
100
"HEALTHY WATERWAYS WATER SENSITIVE URBAN DESIGN" TO LOAMY 'TYPE 1' GRATE. BIORETENTION BASIN 'B1'
BIO BASIN OVERFLOW LEVEL WEIR LEVEL
SOILS. REFER TO LANDSCAPE ARCHITECTS PLANS FOR DETAILS. REFER LONG SECTIONS REFER IPWEAQ D-0050
REFER DETAIL TOTAL AREA = 27m2
· FAWB (FACILITY FOR ADVANCING WATER BIOFILTRATION) ACCREDITED VEGETATION TO COMPLY WITH THE
200
FILTER MEDIA LEVEL FILTER AREA = 20m2
CERTIFICATION FOR FILTRATION MEDIA TO BE FORWARDED TO THE REQUIREMENTS OF APPENDIX A OF 'HEALTHY
BATTER STABILIZED/PINNED
ENGINEER PRIOR TO PLACEMENT. WATERWAYS WATER SENSITIVE URBAN DESIGN'
WITH JUTE MATE OR
TO LOAMY SOILS. REFER LANDSCAPE
SIMILAR APPROVED SURFACE LEVEL
· SUBSOIL DRAINAGE PIPES TO BE UNSOCKED SLOTTED uPVC LAID AT 1:200 EXTENDED DETENTION LEVEL WEIR LEVEL ARCHITECTS DETAILS
MINIMUM GRADE RL7.00 MIN RL6.90 RL6.90
SURFACE LEVEL
0.2
· ALL RIGHT ANGLE SUBSOIL PIPE BENDS ARE TO BE CREATED USING 2x 45°
BENDS . RL6.70
1
150
3 MAX SANDY LOAM. HYDRAULIC CONDUCTIVITY
· INSPECTION HOLD POINTS FOR BIORETENTION BASIN CONSTRUCTION ARE
0.5
AS FOLLOWS. NOTE : GRATE TO BE HOT DIP 200mm/hr IN ACCORDANCE WITH 'GUIDELINE
1. COMPLETION OF BULK EARTHWORKS. PIPE DIAMETER AS NOMINATED GALVANISED. WITH 10 SIDE PLATES SPECIFICATION FOR SOIL MEDIA IN
AND 50*6 BARS AT 50 CRS. TOP SOIL LAYER BIORETENTION SYSTEMS, FACILITY FOR
2. COMPLETION OF SUBSOIL DRAINAGE SYSTEM.
0.1
3. COMPLETION OF COARSE SAND TRANSITION LAYER.
SECTION ADVANCING WATER BIOFILTRATION.'
0.2
REFER DRAINAGE RL5.90
4. COMPLETION OF SANDY LOAM FILTRATION MEDIA LAYER.
LONGSECTIONS
150 150 FOR PIT SIZES & COARSE SAND
· FLUSH OUT POINTS ARE TO BE FITTED WITH A FIXED INSPECTION OPENING 100 DIA SLOTTED uPVC PIPE LAID 2m CTRS AT
CLASS TRANSITION LAYER
50
CAP. SCREW ON CAPS ARE NOT ACCEPTABLE. 0.5% FALL. DISCHARGE TO STORMWATER
150
GEOFABRIC TO BE PROVIDED SYSTEM TANK. PROVIDE 100mm DIA CAPPED
· SANDY LOAM FILTRATION MEDIA LAYER IS TO BE PROTECTED BY A AROUND BIORETENTION MEDIA uPVC FLUSH OUT POINTS AT HEAD OF LINE
GEOFABRIC LAYER OR APPROVED EQUIVALENT FOR THE DURATION OF 5mm SCREENINGS
CONSTRUCTION.
IMPERMEABLE LAYER 'VISQUEEN OR APPROVED
· THE FOLLOWING QA IS TO BE PROVIDED BY THE CONTRACTOR
50
SIMILAR' TO BE PROVIDED AROUND
- PHOTOGRAPHS OF GEOFABRIC LINING INSTALLED BIORETENTION BASIN B1 BIORETENTION MEDIA
- PHOTOGRAPHS OF FIRST DRAINAGE LAYER INSTALLED SCALE 1 : 20 (A1)
150
- PHOTOGRAPHS OF SUBSOIL DRAINS AND RISERS INSTALLED
- AS CON SURVEY OF SUBSOIL DRAINS AND RISERS INSTALLED (NOTE
MINIMUM FALLS) GRATE TO BE HEAVY DUTY
BOUNDARY
PROPERTY
- PHOTOGRAPHS OF FIRST DRAINAGE LAYER INSTALLED HOT DIP GALVANISED.
- PHOTOGRAPHS OF FILTER LAYER INSTALLED IPWEAQ TYPE 1
- FILTER MATERIAL TEST RESULTS (INCLUDING PERMEABILITY) PROPOSED SECURITY FENCE
PLAN TO MANUFACTURERS SPEC
BIO BASIN RAISED GRATED PIT DETAIL
SCALE 1:20
SCREW CAP AND CONCRETE SURROUND
FLUSH OUT POINT. 45deg BEND. REFER VEGETATION TO COMPLY WITH THE REQUIREMENTS OF
TO WSUD-003 FOR DETAILS APPENDIX A OF 'HEALTHY WATERWAYS WATER
SENSITIVE URBAN DESIGN' TO LOAMY SOILS. REFER
PROPOSED RETAINING WALL 'RW2' BIORETENTION BASIN 'B2'
ALL LIDS/GRATES TO LANDSCAPE ARCHITECTS DETAILS
REFER EW04 FOR DETAILS TOTAL AREA = 48m2
0.2
MIN
TOP OFF WALL BATTER STABILIZED/PINNED
3
1
BE BOLT DOWN TYPE FIX FILTER CLOTH TO FACE OF WALL RL6.85 WITH JUTE MATE OR HEIGHT VARIES
300mm WIDE WITH MIN 100mm COVER IN FILTER MEDIA AREA = 40m2 SIMILAR APPROVED RL6.55 TO RL6.75
ACCORDANCE WITH WATER BY DESIGN
100DIA SLOTTED EXTENDED DETENTION LEVEL WEIR LEVEL
GUIDELINES 'BIORETENTION TECHNICAL
uPVC PIPE. RL6.25 RL6.25
DESIGN GUIDELINES FIGURE 33 SOLUTION 2'
SURFACE LEVEL
0.2
EXISTING
SURFACE RL6.05
1500 MAX
100mm
1
cover
VARIES
3 MAX
RL6.70 TO RL5.80
0.5
300mm
TYPICAL CLEANOUT POINT DETAIL SANDY LOAM. HYDRAULIC CONDUCTIVITY
200mm/hr IN ACCORDANCE WITH 'GUIDELINE
SCALE 1 : 20 (A1)
0.1
SPECIFICATION FOR SOIL MEDIA IN
IMPERMEABLE LAYER 'VISQUEEN OR
BIORETENTION SYSTEMS, FACILITY FOR
0.2
APPROVED SIMILAR' TO BE PROVIDED RL5.25
ADVANCING WATER BIOFILTRATION.'
AROUND BIORETENTION MEDIA
COARSE SAND 100 DIA SLOTTED uPVC PIPE LAID 2m CTRS AT
TRANSITION LAYER 0.5% FALL. DISCHARGE TO STORMWATER
SYSTEM TANK. PROVIDE 100mm DIA CAPPED
5mm SCREENINGS uPVC FLUSH OUT POINTS AT HEAD OF LINE
BIORETENTION BASIN B2
SCALE 1 : 20 (A1)
NOTE: ONLY DRAWINGS MARKED "FOR CONSTRUCTION" AND BEARING AN ORIGINAL SIGNATURE SHALL BE USED FOR CONSTRUCTION Design:
PURPOSES.
PBL PROJECT: DRAWING TITLE:
Brah 101 pty ltd t/a Alta Projects
Drawn: PBL
A.B.N. 91 611 354 511 WATER QUALITY DETAILS
FOR APPROVAL Date: MAY 2024 26 Memorial Avenue, Cotton Tree PROPOSED KINETIC BUS DEPOT DEVELOPMENT
NOT FOR CONSTRUCTION PO Box 559, Cotton Tree, QLD, 4558 Revision Sheet
Checked:. . . . . . . . . . .
Tel (07) 5475 4125 Fax (07) 5479 1607 at 5 PRODUCTION STREET, NOOSAVILLE DRAWING No:
A6880/24/WQ02 A 2 of 2
STEVEN HARRISON
Email: [email protected]
A 20/06/2024 ISSUE FOR APPROVAL PBL S.H.
.......................
DIRECTOR APPROVAL Datum AHD
Web: http://www.alta.net.au for INTEGRAL CONSTRUCTION
REV DATE DESCRIPTION BY CHKD RPEQ - 4784 A1 SHEET SIZE FILENAME : A6880-24-WQ02 - WATER QUALITY DETAILS.dwg - DATE : 20/6/24 - 3:18pm - XREF's: H-Approved-SH; H-Checked-SH Council Ref: .......................
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