Attachment C - Stmwater Man Plan · MCU15/0016

Page 2

 

 

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PROVIDE EVEN 1% GRADING (1:100) ALONG
ENTIRE GRIVEWAY AND DISCHARGE SHEET
FLOW TO TOP OF BIO RETENTION SYSTEM

EASEMENT
SL4.56 EMT A
1L3.250 7.569
—7— §
PANT OA
OES) NAS S00
rT Y FL5.050 — g 7 Me 36
PARKIN
vious paving BINS = /j \) A
ACCESS HATCH 937 ahT
REFER TO L3.35)
LUNCH AREA FFLS.1 10 11 12 13 14 15 17 18 19 20 MANUFACTURER \ 23 24
@ @

=>

 

 

  

 

 

 

 

 

 

eT

PROVIDE ON SITE STORAGE

 

 

 

 

 

 

 

 

 

 

 

pervious paving

 

YW

BICYCLE PARKING

 

 

 

 

i 3

QUOTE BAYS

 

 

 

 

 

  
 
  
 
 
 
 
 
 
  

 

 

 

 

 

 

 

 

 

CHECK LEVELS AND PROVIDE CHANGED LEVELS WITH
1% GRADING AT INVERT.

REMOVE PLANTS WHICH MAY NOT BE APPROPIATE.
COORDINATE PLANTS WITH LANDSCAPE ARCHITECT
AND PRINCIPAL ARCHITECT.

  
   
    
  

|
I

| /
EXISTING BIO RETENTION SYSTEM SUBJECT TO
/ REFURBISHMENT:
1. VEGETATION CAN BE RE-USED WHERE APPROPIATE.
CONFIRM WITH LANDSCAPE ARCHITECT.
2. REMOVE ALL 3 LAYERS AND EXPOSE SUBDRAINAGE
3. RE-ARRANGE SUBDRAINAGE AS PER DETAIL.
SLOTTED PIPES CAN BE RE-USED IF THEY ARE
FABRICATED SLOTS.
4. CONSTRUCT NEW OVERFLOW AND BYPASS CHAMBER
AND JOIN SUBDRAINAGE TO CHAMBER.

  
 
 
   

peopoet FEN MICATION. 514.528” 937 5. PROVIDE NEW SEALED WRAPPING SURROUND ALL
oO WALLS AS PER DETAIL.
T T T T T TH T SeLOW SEAR WH ane TANKS 6. PLACE NEW SLEEPER RETAINING WALLS WHERE
bin REQUIRED
EFFECTIVE STORAGE VOLUME 7. FILL LAYERS AS PER PLAN WITH NEW FILTER-,
OF TOTAL 14,000L TRANSITION— AND DRAINAGE MATERIALS.
nea TANK ASSEMBLEY bin 8. CONSTRUCT INFLOW PIPES AND OUTFLOW PIPES AS
. PER DETAILED DESIGN
TANK MANUFACTURER 9. CONSTRUCT SUFFICIENT ROCK FOREBAY FOR SCOUR
AUSTRALIANTANKS bin PROTECTION.
(www.australiantanks.com.au) /
PROVIDE APPROVED FLAP VALVE AND / /
min 2sqm ROCK FOREBAY FOR
%300 FROM ROOF DRAINAGE TO ——-T7 SCOUR PROTECTION AND VELOCITY
DISCHARGE ON TOP OF BIO _ (tpe00e0 CONCRETE SLAB WITH
RETENTION SYSTEM. FOR DETAILS Ss / EMBEDDED COARSE ROCKS OF
REFER TO BA DESIGN PLANS DIFFERENT SIZES CAN BE USED
of) J
-©- FFLS.100 Hore
L a L | 1 whe
—) l
7 MINIMUM FINISHED
“ FFLS.050 OFFICE RECEPTION SLAB LEVEL
6 uP
1 REQUIRED:
DISPLAY AREA
. ee FFL5.100
= 7
PARKING

Z

XISTING SWALE TO BE SUBJECT TO REFURBISHMENT.

 

PARKING

LUNCH AREA,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PARKING

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BICYCLE PARKNG

 

FLOW (LITRES/SEC.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

60 —-—-— NO RETENTION
50 WITH RETENTION
7 ~
40
7 ~N
30
™N

7 eal nN |
9 T T T ! ! T

2 4 6 8 10 12 14 16 18

TIME (MINS.)

STORMWATER HYDROGRAPH THROUGH PROPOSED MITIGATION TANK
PEAK FLOW MITIGATION THROUGH ON SITE RETENTION TANK

TOTAL PROPOSED TANK VOLUME:
TANK FOR RETENTION:

14,000 LITRES

NOTE: THE PEAK FLOW MITIGATION PROVIDED BY 16,000 LITRES RETENTION VOLUME
ON THE BIO RETENTION SYSTEM HAS NOT BEEN USED AS PART OF THE

CALCULATIONS.

RUNOFF & DETENTION CALCULATIONS:
SITE AREA:

NEW IMPERVIOUS AREA:

ROOF CATCHMENT TO TANK:

MAX INFLOW TO TANK AT DESIGN Q20:

MAXIMUM EVENT:
TIME OF CONCENTRATION:
INTENSITY:

PRE DEVELOPMENT PEAK RUNOFF:
PEAK RUNOFF POST DEVELOPMENT:
REDUCTION REQUIRED:

RETENTION VOLUME REQUIRED:
RETENTION VOLUME PROVIDED:

REDUCTION PROVIDED:

ACCESS
EASEMENT

FTP yp

  
   
   
  

CATCHMENT AREAS[sqm]:

SITE: 3335
ROOF: 1800
HARDSTAND: 1155

LANDSCAPING: 380

3335sqm
2872sqm
min900sqm
60L/sec
Q100

Smin
326mm/hr

266L/s
297L/s (NO RETENTION)
31L/sec

12,000 LITRE
14,000 LITRE

34L/s

DISCLAIMER — ENSURE ORIGINAL SIZE DRAWING IS USED
FOR ASSESSMENT, TENDERING AND CONSTRUCTION.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

[Amd Description Date
Issue Notes Date

For Development Approval] X 20-05-15

For Building Approval

For Tender

For Construction

IAs Constructed

 

pan

 

Hydraulic 3:

 

 

 

 

 

 

 

 

 

 

 

 

 

\-
CONTACT: Reinhold Koenning MiEAust RPEQ No 7023
Moffat Beach, QLD, 4551 AHSCA
email: [email protected]
PH: (07) 5491 4333 FX: (07) 5491 4233
CLIENT :
| & L KIPPEN
ARCHITECT :
LL IAN GORTON DESIGN J
(PRosect: 73 RENE STREET Y
NOOSAVILLE
LIGHT INDUSTRIAL
DRAWING TITLE:
STORMWATER
DRAINAGE
PLAN
Design| RK. | checked | [Date 20—05-—15 | Dwg, No, AMD.
\ SCALE: 1: 200 on At uNo.| 2 of 4 2999-2 J
RPD:— LOT 1 SP 244573

 

 

Page 3

 

 

375 TO ON SITE-

RETENTION TANKS
AT 1L3.775

150 SUBDRAINAGE TO-
LAWFUL POINT OF
DISCHARGE AT IL3.360

500 FILTRATION LAYER:

SLEEPER RETAINING

 

}__200 EXTENDED DETENTION DEPTH

  

 

 

 

 

 

WALL OR
EQUIVALENT
4.45 4.410 4.450
—_ +"

SN
THE ENTIRE BRS TO BE WRAPPED
— IN A WATERPROOF LINER

 

 

 

 

 

 

100 TRANSITION LAYER

1.
2.
3.
4.
5.

200 DRAINAGE LAYER

    
    

 

 

 

 

 

 

 

 

 

 

 

 

 

(ALLOW FOR 60mm FALL IN DRAINAGE PIPES)

3.560
ee 3.360
BIO RETENTION SYSTEM (BRS)
CROSS SECTION
SECTION
SCALE NTS
BIO RETENTION SYSTEM LEVEL
SCHEDULE
EDGE OF SURROUND 4.450
WEIR LEVEL BYPASS 4.410
SURFACE LEVEL OF FILTER 4.160
INVERT LEVEL OF FILTER 3.660
TRANSITION LAYER 3.560
INVERT LEVEL OF DRAINAGE 3.360
INVERT LEVEL OF BYPASS 3.775
MAIN DESIGN PARAMETERS FOR BIO RETENTION SYSTEM:
MINIMUM REQUIRED FILTER SURFACE AREA: 65sqm
EXTENDED RETENTION DEPTH: 250mm
DEPTH OF FILTER LAYER: 5S00mm
DEPTH OF TRANSITION LAYER: 100mm
DEPTH OF SUB-—DRAINAGE LAYER: 200-—260mm

  

NEW HI-FLOW BYPASS CHAMBER DISCHARGING TO RETENTION TANKS

SET OVERFLOW WEIR LEVEL TO 4.410 AND DISCHARGE OVERFLOW DIRECTLY TO

RETENTION TANKS VIA 6375

9375 TO TANKS.

NOTE:
THE ENTIRE TRENCH OF THE BIO RETENTION
SYSTEM SHALL BE WRAPPED WITH AN. IMPERVIOUS:

Ft
2
65sqm BIO RETENTION VEGETATED TREATMENT: -
a
=
=
=
& rN. YN

300 FROM ROOF DRAINAGE.

DRIVEWAY /CARPARK

 

$375 FROM
BYPASS CHAMBER

DIRECTED TO EXISTING
STORMWATER MANHOLE, LAWFUL
POINT OF DISCHARGE.

 

 

   

ACCESS HATCH REFER
TO MANUFACTURER

 

SLEEPER RETAING WALL, WHERE
EEQUIRED

BIO RETENTION SYSTEM (BRS'
PLAN VIEW 1:100

ACCESS HATCH REFER
TO MANUFACTURER

   
   
  
 

 

 

 

 

 

   
  
 

DRAINAGE LAYER TOWARDS

  

cl
USING SCREW CAP.

USE 2+45deg BEND AT
INVERT.

DO NOT USE 90deg BEND!

PIPE IS PERMITTED! SLOTS

SONNECT TO #150

COLLECTOR PIPE, PVC, NO

SLOTS
USE 2e45deg BEND
00 NOT USE 90deg BEND!

TYPICAL #90 SLOTTED PVC WITH
a TO. SURFACE

NOTE:
ONLY PRE_FABRICATED SLOTTED

SLOTYTED PIPE AT 750 SPACING

sd LEAN
= PROVIDE” 1:200 GRADING OF
ay dé / 2 RA
J 2 CHAMBER,
2
“Oy ~
7) e PRODUCED BY HELP OF A
ee, e GRINDER CAN NOT BE
“On, 2 TOLERATED!

BIO RETENTION SYSTEM

4.450 4.450

 

 

DISCLAIMER — ENSURE ORIGINAL SIZE DRAWING IS USED
FOR ASSESSMENT, TENDERING AND CONSTRUCTION.

 

[Amd Description Date

 

 

 

 

 

 

 

 

 

 

 

 

 

 

;

 

 

 

 

 

 

@225 sowmycanon

PIPE AT HIGH LEVEL

100 COMMUNICATION
PIPE AT LOW LEVEL

 

 

 

 

 

 

 

375 OVERFLOW FIXED

TO WALL WITH SS
BRACKETS

SLOW LEAK WITH #100
ORIFICE PLATE

$375 TO LAWFUL POINT - vee
OF DISCHARGE aes ‘

 

 

 

 

 

 

 

 

 

 

RETENTION TANK ASSEMBLEY DETAIL

 

 

SCALE: NTS

 

 

 

 

EXISTING 375 RCP
LAWFUL POINT OF DISCHARGE

Issue Notes Date

 

For Development Approval] X 20-05-15

 

For Building Approval

 

For Tender

 

For Construction

 

 

 

 

As Constructed

 

E Hydraulic 3:

 

\-
contact: Reinhold Koenning MiEAust RPEQ No 7023
PO Box 181
Moffat Beach, QLD, 4551
email: [email protected]
PH: (07) 5491 4333 FX: (07) 5491 4233

 

CLIENT :
| & L KIPPEN

ARCHITECT :
iS IAN GORTON DESIGN

(PROJECT: 73 RENE STREET
NOOSAVILLE
LIGHT INDUSTRIAL

DRAWING TITLE:

 

 

A

 

STORMWATER
QUALITY & QUANTITY
DETAILS

 

 

Design| RK. | checked | Ch [Date 20-05-15 | Dwg, No. AMD,

SCALE : NTS on At uNo.| 3 of 4 2999-3 J
RPD:— LOT 1 SP 244573

 

 

 

 

 

 

 

 

Page 4

 

 

RECOMMENDATIONS FOR ESTABLISHMENT & OPERATION:

PHASE OF ESTABLISHMENT:

The first 2 Years after construction are crucial for the performance of the VBFS.
***Ensure the right plant selection (refer "Healthy Waterways" for plant selection)
**During dry periods provide sufficient watering
“Perform regular weed removal
****Replace not established plants where required
OPERATIONAL PHASE:

e Perform routine inspections of the raingarden (VBFS) to identify any areas of obvious increased sediment deposition, scouring from
storm flows, rill erosion of the batters from lateral inflows and clogging

Perform routine inspections of the inflow systems in particular the grated drain and clean the grated drain regular from debris and litter
Perform routine inspections of the surface of the raingarden and clean from litter and gross pollutants

Remove sediment build ups in the raingarden

Repair any damage from vehicle traffic

Provide regular irrigation/watering during extended dry periods

Remove any invasive weeds at any time

Remove plants that have died and replace them

Perform regular pruning as to Landscape Architects schedule to encourage growth and healthy establishment of plants

Perform vegetation pest minotoring and control as to Landscape Architects schedule

RECOMMENDATION:

THE RAINGARDEN IS PROPOSED TO BE A STORMWATER TREATMENT DEVICE AS OPPOSED TO A NORMAL GARDEN
BED. WE RECOMMEND TO SET UP A SIGN EXPLAINING THE PURPOSE OF THE RAINGARDEN.

WIDTH AS SPECIFIED IN PLAN VEGETATED BIO RETENTION SYSTEM LENGTH AS SPECIFIED INPLAN = WIDTH AS SPECIFIED IN PLAN
Use for mulching: LUCERN, WOODCHIP OR EQUIVALENT.

 

       
       
   
   
   
     
     
   
   
   
   

NOTES:

1. Use LUCERN OR EQUIVALENT for mulching

2. Do not use organic Soils or soil fractions
for filter layer.

3. Provide a suitable irragation system required
for the establishment of the plants and for
use in extended dry periods. Irragation
system shall be supplied from the

harvesting tanks.

4. Do not use any geotextile or related
products between filter and transition or
between transition and drainage layers.

5. Geotextiles may be used in addition to the
impermeable concrete & block surrounds.

6. Provide flush out points for subsurface

drainage.

 

 

FILTER LAYER:

Clay 2-4% (<0,002mm)
Silt 48% (0.002-0.05mm)
Very Fine Sand = -10%(0.05-0.15mm)

Fine Sand 10-25% (0.15-0.25mm)
Med./Coarse Sand 60-70% (0.25-1.0mm)
Coarse Sand 7-10%(1.0-2.0mm)

TRANSITION LAYER:
Coarse Sand 100% 0.5-2 mm

 

 

 

 

 

 

DRAINAGE LAYER

O, OC Fine Gravel 100% 2-5 mm

 

 

 

 

 

   
         
     

 

 

 

 

 

 

Connect subsoil
drainage to stormwater
infrastructure as
specified in plan.

Provide PVC perforated pipe with
diameter as specified in plan.
Minimum 2 off.

 

VEGETATED BIO FILTER STRIP SOIL SPECIFICATION
(NOT TO SCALE)

 

 

NOTES:

1. Provide selected plants as to specification of
"Healthy Waterways” http://www.healthywaterways.org/

2. Provide "FOREBAY’ made of rocks and pebbles. For

scour protection. Refer detailed design for area.

MAINTENANCE PLAN

WATER SENSITIVE URBAN DESIGN TECHNICAL DESIGN GUIDELINES FOR SOUTH EAST
QUEENSLAND (Chapter 5, Item 5.6).

 

The maintenance of the bioretention basin elements involve:

e — Routine inspection of the bioretention basin profile to identify any areas of obvious increased sediment
deposition, scouring from storm flows, rill erosion of the batters from lateral inflows, damage to the profile
from vehicles and clogging of the bioretention basin (evident of "boggy" filter media surface).

e Routine inspection of inflows systems, overflow pits and under-drains to identify and clean any areas of
scour, litter build up and blockages.

e Removal of sediment where it is smothering the bioretention basin vegetation.

e Where a sediment forebay is adopted, removal of accumulated sediment.

Repairing any damage to the profile resulting from scour, rill erosions or vehicle damage by replacement of

appropriate fill (to match onsite soils) and revegetating.

Tilling of the bioretention basin surface, or removal of the surface layer, if there is evidence of clogging.

Regular watering/irrigation of vegetation until plants are established and actively growing.

Removal and management of invasive weeds (herbicides should not be used).

Removal of plants that have died and replacement with plants of equivilant size and species as detailed in

the plant schedule.

Pruning to remove dead or diseased vegetation material and to stimulate growth.

Vegetation pest monitoring and control.

Refer "Water by design" by HEALTHY WATERWAYS.

 

BIO RETENTION
BASIN

THIS BIO RETENTION BASIN REDUCES THE POLLUTION
OF OUR WATERWAYS BY REDUCING THE AMOUNT OF
HEAVY METALS, LITTER, SUSPENDED SOLIDS AND
NUTRIENTS DISCHARGED TO THE

PUMICESTONE PASSAGE.

 

 

 

EDUCATIONAL SIGNAGE LAYOUT

 

 

1800m? q Sig

 

 

 

ROOF

 

BIORETENTION FILTER & RAINGARDEN MAINTENANCE CHECKLIST

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BODY . :
CORPORATE NAME: DATE:
RESPONSIBILITY CENTRE . .
MANAGEMENT NAME: DATE:
OWNER NAME: DATE:
PROVIDE NAME AND DETAILS OF
MONTHLY CONSULTANT IF APPOINTED:
INSPECTION QUARTER
FREQUENCY 6—MONTHLY
DROUGHT
AFTER EVENT
INSPECTION ITEMS YES __|No ACTION REQUIRED

 

 

Overall appearance healthy?

 

Overall appearance clean?

 

Gross litter _on surface?

 

 

Sediment accumulation at inlet?

 

Sediment accumulation on pebble surface?

 

Sediment accumulation at pipe outlets?

 

Sediment accumulation in bypass chamber?

 

 

Erosion at forebay?

 

Erosion at overflow?

 

Any other erosion?

 

 

Damage of support structure?

 

Any other traffic damage present?

 

Damage to grates and lids?

 

 

Visual plant health ok?

 

Weeds apparent? Weeding required?

 

Watering required?

 

Irrigation functional?

 

Replanting required?

 

Mowing/slashing/pruning required?

 

 

Surface clogging visible?

 

Excess ponding evident?

 

Flushing required?

 

Point of discharge inspected (pit/headwall/swale/creek)?

 

 

 

 

OTHER
OBSERVATIONS

 

SIGNATURE & DATE:

 

 

 

1155m? 5
ee

DRIVEWAY

BIO RETENTION SYSTEM

 

 

 

 

RETENTION TANK

TREATMENT TRAIN

RECEIVING WATERWAYS

 

 

 

 

DISCLAIMER — ENSURE ORIGINAL SIZE DRAWING IS USED
FOR ASSESSMENT, TENDERING AND CONSTRUCTION.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

[Amd Description Date
Issue Notes Date

For Development Approval] X 20-05-15

For Building Approval

For Tender

For Construction

As Constructed

 

E Hydraulic ::

 

\-

PO Box 181
Moffat Beach, QLD, 4551
email: [email protected]

PH: (07) 5491 4333 FX: (07) 5491 4233

contact: Reinhold Koenning MiEAust RPEQ No 7023

 

 

 

 

 

 

 

 

 

 

CLIENT :
| & L KIPPEN
ARCHITECT :
LL IAN GORTON DESIGN J
(PRoJect: 73 RENE STREET >
NOOSAVILLE
LIGHT INDUSTRIAL
DRAWING TITLE:
STORMWATER
QUALITY
MAINTENANCE
AND SPECIFICATIONS
Design] RH. checked] hb [Date | 20-05-15 | Dwg. No. ‘AMD.
SCALE : N/A on at u.no.] 4 of 4 2999-4 J

 

 

RPD:— LOT 1 SP 244573