Response to Council's Information Request · MCU14/0077

 

  
   
    
 
  

  
  
     

  

NOTE:

NEW HI-FLOW BYPASS CHAMBER DISCHARGING TO RETENTION TANKS
NOTE:

SET OVERFLOW WEIR LEVEL TO 4.520 AND DISCHARGE OVERFLOW DIRECTLY TO
RETENTION TANKS VIA 225

 
 
 
 

500 WIDE BATTER SURROUNDING BIO
RETENTION SYSTEM

THE ENTIRE TRENCH OF THE BIO RETENTION

SYSTEM SHALL BE WRAPPED WITH AN IMPERVIOUS

LINER

EXISTING AND REFURBISHED

WITH EXISTING 375RCP TO
LAWFUL POINT OF DISCHARGE

5500

32sqm BIO RETENTION VEGETATED TREATMENT
SURFACE AREA

BIO RETENTION SYSTEM (BRS)
PLAN VIEW _1:100

‘TYPICAL:
#100 SLOTTED PVC WITH
CLEANOUT TO SURFACE
USING SCREW CAP.

USE 2#45deg BEND AT
INVERT.

DO NOT USE 90deg BEND!

CONCRETE OVERFLOW CHAMBER

@225 FROM TANKS

 

BIO RETENTION SYSTEM LEVEL

SCHEDULE

 

EDGE OF SURROUND

 

 

 

DRIVEWAY /CARPARK

TYPICAL 100 SLOTTED PVC

WITH CLEANOUT TO SURFACE
PROVIDE 1:200 GRADING OF
DRAINAGE LAYER TOWARDS

CHAMBER.
NOTE:

ONLY PRE FABRICATED SLOTTED

PIPE IS PERMITTED!

SLOTS

PRODUCED BY HELP OF A

GRINDER CAN NOT BE

TOLERATED!

BIO RETENTION SYSTEM

SUBDRAINAGE LAYOUT 1:100

ACCESS HATCH REFER
TO MANUFACTURER

 

 

 

 

 

 

SURFACE 4.570

ve" eee | 4.520

WEIR LEVEL OF EXISTING 4.570

SURFACE LEVEL OF FILTER 4.320

INVERT LEVEL OF FILTER 3,920

INVERT LEVEL OF TRASITION 3.820
INVERT LEVEL OF DRAINAGE! 3.620 TO

LAYER 3.220

INVERT LEVEL OF BYPASS 3.220

CHAMBER

 

     
  
   

 

 

      
 
 

 

 

 

 

   

ACCESS HATCH REFER
TO MANUFACTURER

4.570

 

$225 FROM :

BYPASS CHAMBER

 

-

=

 

 

 

 

 

O

\4

 

225 COMMUNICATIO:
PIPE AT HIGH LEVEL

#100 COMMUNICATIO:
PIPE AT LOW LEVEL

 

ST

N °

BRACKETS

ORIFICE PLATE

 

 

 

 

 

225 OVERFLOW FIXED-—— |

TO WALL WITH SS

SLOW LEAK WITH #100

 

 

 

 

 

 

 

EXISTING 375RCP

—
—\
o
O

  

    
  
 

EXISTING GRATED FIELD INLET TO BE-
MADE GOOD FOR FUNCTION AS

OVERFLOW AND HIGH FLOW BYPASS
CHAMBER, CONCRETE WITH WEIR AT

PARKING

SL4.520 AND HINGED, ELEVATED
GRATE.

THE ENTIRE BRS TO BE WRAPPED————

BATTER OUTSIDE OF-
FILTER MEDIUM
SURFACE AREA.
PROVIDE ROCKS
AND PEBBLES.

 

200 EXTENDED DETENTION DEPTH

4.570

 

 

IN A WATERPROOF MEMBRANE

NOTE:

600 FILTRATION LYER-————S

  
 

 

3.620

 

100 TRANSITION LAYER

 

3.420

 

 

200 DRAINAGE LAYER—————__|

 

 

 
   

@225 FROM ON SITE
RETENTION TANKS

ALL MANHOLE AND CHAMBER
PENETRATIONS REQUIRE
BEING SEALED WITH NON

SHRINK GROUT

ENSURE NO LATERAL

GROUND WATER

AFTER CONSTRUCTION.

WHEEL STOPPER

DETAIL WITH WHEEL STOPPER

 

EXISTING STORMWATER
CHAMBER. MAKE GOOD AND
RISE WEIR LEVEL TO
AHD4.570. CHAMBER WEIR
LEVEL HAS TO BE 50mm
ABOVE BYPASS CHAMBER
WEIR LEVEL!

4.570

 

| 0 RETENTION SYSTEM

 

@225 TO LAWFUL POINT
OF DISCHARGE

 

 

 

 

 

 

RETENTION TANK ASSEMBLEY DETAIL

 

SCALE: NTS

a.
ay4 4
ae

 

 

 

 

EXISTING 375 RCP
LAWFUL POINT OF DISCHARGE

NTS

SO AS TO
FLOWS

S

SCALE 1

BIO RETENTION SYSTEM NOTES
CATCHMENT: HARDSTAND 806m?

¢ FILTER MEDIUM AREA: 40m?

© FORE

e PROVIDE #100 SUBSOIL DRAINAGE WITH

CLEAN

200 EXTENDED DETENTION DEPTH

  

 

 

  

 

BIO RETENTION SYSTEM (BRS)
CROSS SECTION

 

   

XISTING 375 RCP
LAWFUL POINT OF DISCHARGE

 

 

 

TYPICAL 100 SLOTTED PVC
WITH CLEANOUT TO SURFACE
PROVIDE 1:200 GRADING OF
DRAINAGE LAYER TOWARDS
CHAMBER.

NOTE:

ONLY PRE FABRICATED SLOTTED
PIPE IS PERMITTED! SLOTS
PRODUCED BY HELP OF A
GRINDER CAN NOT BE
TOLERATED!

    
   

ECTION
50

BAY AREA: 0.6m?

OUT POINTS AS INDICATED.

ATTER OUTSIDE OF
FILTER MEDIUM
SURFACE AREA.
PROVIDE ROCKS
AND PEBBLES.

 

 

 

 

 

 

 

 

 

    
   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.570 4.520 4.570
Ne ,
SNe
JJ THE ENTIRE BRS TO BE WRAPPED
IN A WATERPROOF LINER
$225 FROM TO ON ste" : 3.620
RETENTION TANKS 2A 3.420
600 FILTRATION LAYER DISCLAIMER — ENSURE ORIGINAL SIZE DRAWING IS USED
100 TRANSITION LAYER FOR ASSESSMENT, TENDERING AND CONSTRUCTION.
200 DRAINAGE LAYER Amd Description Date
| 500 | 3088 500 |
BIO RETENTION SYSTEM (BRS)
CROSS SECTION
SECTION
SCALE 1: 50 C | NEW ARCHITECTURAL LAYOUT; RESPONSE TO RFI 15-10-14
B | NEW ARCHITECTURAL LAYOUT 11-09-14
A__ INVERT LEVEL CHANGED; NOTES CHANGED 03-06-14
Issue Notes Date
For Development Approval X 21-05-14
For Building Approval x 21-05-14
For Tender
_~ 60 ——— NO RETENTION For Construction
SO
a 50 WITH RETENTION As Constructed
{2 40
fe Za ~
5 30 SL
= 20 — .
3 = iat
&* 7 = — Hydraulic 3
= =————_—_
0 T Y . .
2 4 6 8 10 12 14 16 18 contact: Reinhold Koenning MiEAust RPEQ No 7023
PO Box 181
TIME (MINS.) Moffat Beach, QLD, 4551
email: [email protected]
STORMWATER HYDROGRAPH THROUGH PROPOSED MITIGATION TANK PH: (07) 5491 4333 FX: (07) 5491 4233
PEAK FLOW MITIGATION THROUGH ON SITE RETENTION TANK CLIENT :
WILSON CLARK CONSTRUCTIONS
TOTAL PROPOSED TANK VOLUME: ARCHITECT :
TANK FOR RETENTION: 10,000 LITRES LL COOL ARCHITECTURE J
(PROJECT: 10/100 RENE STREET >
NOOSAVILLE
RUNOFF & DETENTION CALCULATIONS:
SITE AREA: 1701sqm
NEW IMPERVIOUS AREA: 1453sqm .
ROOF CATCHMENT TO TANK: 647sqm DRAWING TITLE:
MAX INFLOW TO TANK AT DESIGN Q20: 43L/sec
MAXIMUM. EVENT: Q100 \
TIME OF CONCENTRATION: 5min
INTENSITY: 326mm/hr STORMWATER
QUALITY&QYANTITY
PRE DEVELOPMENT PEAK RUNOFF: 136L/s DETAILS
PEAK RUNOFF POST DEVELOPMENT: 151L/s (NO RETENTION)
REDUCTION REQUIRED: 16L/sec
RETENTION VOLUME REQUIRED: 8,000 LITRE
RETENTION VOLUME PROVIDED: 10,000 LITRE Design HH. Checked (©) | Date 21-05-14 Dwg, No. AMD,
REDUCTION PROVIDED: 23L/s SCALE: 1: 100 onar uno. 3 of 6  2864-OP3 Cy
RPD:— LOT 10 SP 230643