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Appendix D - Erosion and Sediment Control Plan
Attached to the e-mail Operational Works Application - DA Form 1 - Town Planning Report - Global Stability Assessment Report - Earthworks Compaction Report - Erosion and Sediment Control Plan - 36 Tunba Court Cooroy Mountain.
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Log in to see the plans as drawnEROSION AND SEDIMENT CONTROL PLAN (36 Tunba Court, Cooroy Mountain) SITE FEATURES Overland Flow Construction Area Suggested Total Catchment Calculated Mean Calculated Soil Erosion Sediment Sub-catchment Area (ha) Loss per Area Slope Lossꜞ (t/ha/yr) Hazard Control (t/yr) % Technique² Catchment 1 0.24 623 149 30 High Type 2 1. A = K x R x LS x P x C Equation 1 (IECA 2008, Best Practice Erosion and Sediment) Where: 2. TYPE 1 : Sediment Basin A is the predicted soil loss per hectare per year TYPE 2: Filter tube dam, rock filter dam, K is the soil erodibility factor = 0.017 (sandy clay sub-soils) sediment trench, sediment weir, R is the rainfall erosivity factor = 4217 compost/mulch berm. LS is the slope length/gradient factor as Table E3 (IECA 2008)= 6.69 TYPE 3: Sediment fence mulch berms, P is the erosion control practice factor = 1.3 sediment trap. C is the ground cover and management factor = 1 Client PROJECT TITLE DRAWING TITLE 36 Tunba Court, Cooroy Moun- Erosion and Sediment Control Plan Site Geoff & Tamara Hussin tain (new shed) Features and Catchment Boundaries 19 Central Park Drive, Yandina 4561 www.aussieenvironmental.com.au Drawing No. ESCP01
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Page 2
GENERAL INFORMATION SEDIMENT & EROSION CONTROL GENERAL INSTRUCTIONS
1. This Erosion and Sediment Control Plan (ESCP) is based on the International Erosion Control Association Before commencement of any earthworks or disturbance to the drainage lines, the following erosion
(Australasia) Best Practice Erosion and Sediment Control (2008) document (IEAC Guidelines) and Noosa Council’s Stan- and sediment control measures need to be installed in the following order.
dard and Project Drawings, Plans, Specifications and Schedules. 1. Access tracks for site establishment, side tracks, stockpiles should be located to minimise both
2. The property is surrounded by rural residential properties . Six Mile Creek is approximately 700m downstream from short and long-term soil and vegetation disturbance, while giving appropriate consideration to the
the proposed works.. The project includes cut and fill earthworks, a shed with water tanks and surface drainage. intended purpose of the access and the ability to rehabilitate.
3.. The location of erosion and sediment controls on this plan are indicative only. Exact location and type to 2. Divert all potential stormwater runoff from external catchments away from the construction foot-
be determined on site. NO ESC TO BE INSTALLED OUTSIDE CLEARING LIMITS! CLEARING LIMITS FOR THIS PROJECT ARE print and stockpile areas. Check the ground Contours/drainage lines not shown in the ESCP. Always
THE EXTENT OF EARTHWORKS +1M. ensure separation of clean (external) and dirty (construction) runoff . Always look for opportunities to
4. ALWAYS ENSURE SEPARATION OF CLEAN EXTERNAL RUNOFF AND DIRTY CONSTRUCTION RUNOFF . divert water away from the construction zone.
5. Associated compliance requirements and plans include; 3. Install sediment controls and diversions in the locations shown in ESCP03.
• Associated architectural drawings 4. Once all of the above measures are complete and stable, civil works can commence in accordance
. IEAC (2008) Standard Drawings and Notes for Erosion and Sediment Control. with the plans.
. Geotectnical investigation (Morrison Geotechnic, 30/08/21) 5. Direct all construction runoff to sediment controls before it leaves the site.
6. The area of disturbance is approximately 0.24Ha. An erosion risk assessment (RUSLE) has been completed for this 6. Cover any disturbed areas within 5 days or if rainfall predicted (70% chance of rainfall >5mm within
project. The project is considered high erosion risk mainly due to the steepness of the location 24 Hours or 80% chance of rainfall >10mm within 48 Hours).
7. This ESCP has a focus on managing the erosion protection and sediment capture. 7. Monitoring, maintenance and inspections are to be carried out regularly as required.
8. All controls must be maintained throughout the construction period.
Client PROJECT TITLE DRAWING TITLE
36 Tunba Court, Cooroy Moun- Erosion and Sediment Control Plan
Geoff & Tamara Hussin tain (new shed) General information and instructions
19 Central Park Drive, Yandina 4561
www.aussieenvironmental.com.au Drawing No.
ESCP02
Page 3
EROSION AND SEDIMENT CONTROL PLAN (36 Tunba Court, Cooroy Mountain)
EARTHWORKS PHASE SITE FEATURES
Overland Flow
Construction Area
EROSION AND SEDIMENT CONTROLS
Diversion Channel (refer Standard Drawing DC-01,
Appendix A)
Sediment barrier use Coir logs or Silt fence (refer
Appendix A for Standard Drawings)
ORDER OF WORK
1. Survey and mark boundaries, access, no-go zones, construction
pads, diversion drains, stockpiles and laydown areas,.
2. Install preliminary erosion and sediment controls and clean-water diversions.
3. Strip topsoil, removal of woody vegetation and stockpile
4. Surface levels shall be graded and filled to ensure all stormwater runoff is
directed through erosion and sediment controls and towards the Sediment
Controls
3. Temporary and permanent erosion and drainage controls shall be installed
systematically as works progress.
4. For cut and fill batters , temporary toe drainage will be maintained as works
progress.
5. Batters will be protected as works progress.
6. Cover any disturbed areas within 5 days or if rainfall predicted (70% chance
of rainfall >5mm within 24 Hours or 80% chance of rainfall >10mm within 48
Hours).
Client PROJECT TITLE DRAWING TITLE
36 Tunba Court, Cooroy Moun- Erosion and Sediment Control Plan
Geoff & Tamara Hussin tain (new shed) Earthworks Phase
19 Central Park Drive, Yandina 4561
www.aussieenvironmental.com.au Drawing No.
ESCP03
Page 4
Table 1 – Best Prac�ce land clearing and rehabilita�on requirements.
EROSION AND SEDIMENT CONTROL PLAN (36 Tunba Court, Cooroy Mountain) Risk Best prac�ce requirements
CONSTRUCTION AND FINISHING PHASE All Cases All reasonable and prac�cable steps taken to apply best prac�ce erosion control
measures to completed earthworks, or otherwise stabilise such works, prior to
an�cipated rainfall-including exis�ng unstable, undisturbed, soil surfaces under the
management or control of the building/construc�on works.
Low Disturbed soil surfaces stabilised with minimum 70% cover within 20 days of
comple�on of works within any works within any area of a work site.
Moderate Disturbed soil surfaces stabilised with minimum 75% cover within 20 days of
comple�on of works within any works within any area of a work site.
High Disturbed soil surfaces stabilised with minimum 75% cover within 10 days of
comple�on of works within any works within any area of a work site.
(IECA Guidelines Table 4.4.7)
CONSTRUCTION AND FINISHING STAGE
Finishing works include final surface protections including batter protection,
Longitudinal and transverse drainage protection, final landscaping
and maintenance, final drainage works and progressive removal of erosion and
sediment controls. As per Table 1 this project (high risk) requires 75% cover within
10 days. Temporary controls will not be removed until permanent measures are in
place and site rehabilitation has occurred (at least 70 to 80% of soil surface must
be protected from raindrop erosion). Any areas used for erosion and sediment
control shall be rehabilitated.
All stormwater drainage (i.e. yard stormwater inlets and roof plumbing) during
construction requires protecting. The new shed’s roofs should be temporally or
permanently diverted through the underground stormwater pipes.
EROSION AND SEDIMENT CONTROLS
Diversion Channel (refer Standard Drawing DC-01,
Appendix A) To remain. Protect with topsoil and
Exposed Soil Treatment.- Hydromulch @ 4T/Ha and seed mix (turf Exposed cut batter and table drain - Use soil binder at 1.5parts hydromulch.
mix @ 40kg/Ha binder to 10parts water to protect exposed surfaces. This should
(Maintain until 80% cover) provide 18 months protection. Assess the batter after 18 months Sediment barrier use Coir logs or Silt fence (refer
and if the surfaces are showing signs of erosion re-apply soil Appendix A for Standard Drawings). Remove after
binder or use erosion control blanket. 80% grass cover
Client PROJECT TITLE DRAWING TITLE
36 Tunba Court, Cooroy Moun- Erosion and Sediment Control Plan
Geoff & Tamara Hussin tain (new shed) Building and Construction Phase
19 Central Park Drive, Yandina 4561
www.aussieenvironmental.com.au Drawing No.
ESCP04
Page 5
Appendix A – Standard Drawings [OCR of page images] Appendix A — Standard Drawings
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MATERIALS
FIBRE ROLLS: TYPICALLY 200 TO 250mm
JUTE, COIR OR STRAW ROLL TIED WITH
SYNTHETIC OR BIODEGRADABLE MESH.
STAKES: MINIMUM 25 x 25mm TIMBER
STAKES.
INSTALLATION
1. REFER TO APPROVED PLANS FOR
LOCATIONAND INSTALLATION DETAILS.
IF THERE ARE QUESTIONS OR PROBLEMS
WITH THE LOCATION, DIMENSIONS OR
METHOD OF INSTALLATION CONTACT THE
ENGINEER OR RESPONSIBLE ON-SITE
OFFICER FOR ASSISTANCE.
2. WHEN PLACED ACROSS
NON-VEGETATED OR NEWLY SEEDED
SLOPES, THE ROLLS MUST BE PLACED
ALONG THE CONTOUR.
3. IF PLACED ON OPEN OR LOOSE SOIL,
ENSURE THE FIBRE ROLLS ARE
TRENCHED 75 TO 125mm IN SANDY SOILS
AND 50 TO 75mm IN CLAYEY SOILS.
4. ENSURE THE OUTER MOST ENDS OF
THE FIBRE ROLLARE TURNED UP THE
SLOPE TO ALLOW WATER TO
ADEQUATELY POND UP-SLOPE OF THE
ROLL, AND TO MINIMISE FLOW
BYPASSING.
5. WHEN PLACED ACROSS THE INVERT
OF MINOR DRAINS, ENSURE THE SOCKS
ARE PLACED SUCH THAT.
(i) THE CREST OF THE DOWNSTREAM
ROLL IS LEVEL WITH THE CHANNEL
INVERT AT THE IMMEDIATE UPSTREAM
SOCK (IF ANY);
(ii) EACH ROLL EXTENDS UP THE
CHANNEL BANKS SUCH THAT THE CREST
OF THE FIBRE ROLLAT ITS LOWEST
POINT IS LOWER THAN THE GROUND
LEVELAT EITHER END OF THE ROLL.
6. ENSURE THE ANCHORING STAKES ARE
DRIVEN INTO THE END OF EACH ROLL
AND ALONG THE LENGTH OF EACH ROLL
ATASPACING NOT EXCEEDING 1.2m OR
SIX TIMES THE ROLL DIAMETER,
WHICHEVER IS THE LESSER. A MAXIMUM
STAKE SPACING OF 0.3m APPLIES WHEN
USED TO FORM CHECK DAMS.
7. ADJOINING ROLL MUST BE OVERLAP AT
LEAST 450mm, NOT ABUTTED.
MAINTENANCE
4. INSPECT ALL FIBRE ROLLS PRIOR TO
FORECAST RAIN, DAILY DURING
EXTENDED PERIODS OF RAINFALL,
AFTER SIGNIFICANT RUNOFF
PRODUCING STORMS OR OTHERWISE AT
WEEKLY INTERVALS.
2. REPAIR OR REPLACE DAMAGED FIBRE
ROLLS.
3. REMOVE COLLECTED SEDIMENT AND
DISPOSE OF INA SUITABLE MANNER
THAT WILL NOT CAUSE AN EROSION OR
POLLUTION HAZARD.
REMOVAL
1. ALL EXCESSIVE SEDIMENT TRAPPED
BY THE ROLLS MUST BE REMOVED FROM
THE DRAIN OR SLOPE IF SUCH SEDIMENT
IS LIKELY TO BE WASHED AWAY BY
EXPECTED FLOWS.
2. DISPOSE OF COLLECTED SEDIMENT IN
A SUITABLE MANNER THAT WILL NOT
CAUSE AN EROSION OR POLLUTION
HAZARD.
3. THE BIODEGRADABLE CONTENT OF
THE STRAW ROLLS MAY NOT
NECESSARILY NEED TO BE REMOVED
FROM THE SITE.
4. ALL SYNTHETIC (PLASTIC) MESH OR
OTHER NON READILY BIODEGRADABLE
MATERIAL MUST BE REMOVED FROM THE
SITE ONCE THE SLOPE OR DRAIN IS
STABILISED, OR THE ROLLS HAVE
DETERIORATED TO A POINT WHERE THEY
ARE NO LONGER PROVIDING THEIR
INTENDED DRAINAGE OR SEDIMENT
CONTROL FUNCTION.
Collected sediment
Figure 1 - Typical installation of fibre rolls
Fibre rolls recessed
50 to 75 mm in clayey soils,
or 75 to 125 mm in sandy soils
Drawn: ate:
GMW | Apr-10 | Fibre Rolls
FR-01
Page 7
Catchments & Creeks Pty Lid
(b) Anchoring base of fabric
Woven or I 2000 mm (max) without
composite , tl support wire
sediment
fence fabric
L_
Fabric B
Fabric A
Fabric to fold around each stake one full turn.
Stake B to be drive tightly against Stake A.
The tops of both stakes to be secured with wire.
(c) Joining fabric - Method 1
(d) Installation without backing support
w Fabric 3000 mm (max) with top wire
>| Woven or [Ps OD mesh backing
7 a Straw bale ah Staple/tack Fabric B composite |
. 7 4 300 mm (min) rp sediment P< Post
om NM as, if . % fence fabric
H | 7 at NY? Lo
— rg - Sediment ( Fabric A yoo . 4m (max) *
We er OS Safety cap 200 (min)| | | secure fabric Top wire
~ HS Bis wee “ Support post option 1 hy to wire support
osx! nd SLY ‘ { 1500 mm¢ hardwood stake 4
Support post option 2
is
(e) Spill-through weir
(f) Placement of up-slope straw bale
‘Returns’ placed at 20 m spacing (max) if fence is located
3 m (max) with wire backing,
along the contour, otherwise 5 to 10 m depending on siope
otherwise 2 m (max) 1
Direction of flow 1.5 m (min)
All support posts placed
down-slope of fabric
buried
200 mm
Sediment fence fabric,
not filter cloth or shade cloth (i) Installation of sediment fence
1.5 kg/m steel star picket
(g) Joining fabric - Method 2
(h) Installation with top wire support
Notes:
1. Sediment fence to be installed along a line of constant ground elevation
wherever practical.
2. Both end of the sediment fence to extend up the slope at least 1m.
3. Support post to be spaced a maximum 2m unless the fence is supported
by a top wire or wire mesh backing, in which case 3m maximum spacing.
4. Fence ‘returns’ shail be installed at maximum 20m spacing if fence is
installed along the contour, otherwise 5 to 10m maximum spacing.
5. Minimum 4 staples or tie wires per stake.
Date:
Dec-09
Drawn:
GMW Sediment Fence SF-01
Page 8
INSTALLATION ADDITIONAL REQUIREMENTS FOR TURF THE TURF AND THE SOIL SUCH THAT 3. DISPOSE OF ANY COLLECTED
PLACEMENT: SEEPAGE FLOW BENEATH THE TURF IS SEDIMENT OR FILL IN A MANNER THAT
1. REFER TO APPROVED PLANS FOR AVOIDED. WILL NOT CREATE AN EROSION OR
LOCATION, EXTENT, AND CONSTRUCTION 1. TURF SHOULD BE USED WITHIN 12 POLLUTION HAZARD.
DETAILS. IF THERE ARE QUESTIONS OR HOURS OF DELIVERY, OTHERWISE 9. WATER UNTIL THE SOIL IS WET 100mm
PROBLEMS WITH THE LOCATION, EXTENT, ENSURE THE TURF IS STORED IN BELOW THE TURF THEREAFTER, REMOVAL
OR METHOD OF INSTALLATION, CONTACT CONDITIONS APPROPRIATE FOR THE WATERING SHOULD BE SUFFICIENT TO
THE ENGINEER OR RESPONSIBLE WEATHER CONDITIONS (e.g. A SHADED MAINTAIN AND PROMOTE HEALTHY 1. WHEN THE CONSTRUCTION WORK
ON-SITE OFFICER FOR ASSISTANCE. AREA). GROWTH ABOVE A TEMPORARY DIVERSION
CHANNEL IS FINISHED AND THE AREA IS
2. ENSURE ALL NECESSARY SOIL 2. MOISTENING THE TURF AFTER IT IS MAINTENANCE STABILISED, THE AREA SHOULD BE
TESTING (e.g. SOIL pH, NUTRIENT UNROLLED WILL HELP MAINTAIN ITS APPROPRIATELY REHABILITATED.
LEVELS) AND ANALYSIS HAS BEEN VIABILITY 1. DURING THE SITE'S CONSTRUCTION
COMPLETED, AND REQUIRED SOIL PERIOD, INSPECT THE DIVERSION 2. DISPOSE OF ANY COLLECTED
ADJUSTMENTS PERFORMED PRIOR TO 3. TURF SHOULD BE LAID ON A MINIMUM CHANNEL WEEKLY AND AFTER ANY SEDIMENT OR FILL IN A MANNER THAT
PLANTING. 75mm BED OF ADEQUATELY FERTILISED INCREASE IN FLOWS WITHIN THE WILL NOT CREATE AN EROSION OR
TOPSOIL RAKE THE SOIL SURFACE TO CHANNEL REPAIR ANY SLUMPS, WHEEL POLLUTION HAZARD.
3. CLEAR THE LOCATION FOR THE BREAK THE CRUST JUST BEFORE LAYING TRACK DAMAGE OR LOSS OF
CHANNEL, CLEARING ONLY WHAT IS THE TURF FREEBOARD. 3. GRADE THE AREA AND SMOOTH IT OUT
NEEDED TO PROVIDE ACCESS FOR IN PREPARATION FOR STABILISATION.
PERSONNEL AND CONSTRUCTION 4. DURING THE WARMER MONTHS, 2. ENSURE FILL MATERIAL OR SEDIMENT
EQUIPMENT LIGHTLY IRRIGATE THE SOIL IS NOT PARTIALLY BLOCKING THE 4. STABILISE THE AREA AS SPECIFIED IN
IMMEDIATELY BEFORE LAYING THE TURF. CHANNEL WHERE NECESSARY, REMOVE THE APPROVED PLAN.
4. REMOVE ROOTS, STUMPS, AND OTHER ANY DEPOSITED MATERIAL TO ALLOW
DEBRIS AND DISPOSE OF THEM 5. ENSURE THE TURF IS NOT LAID ON FREE DRAINAGE.
PROPERLY DO NOT USE DEBRIS TO GRAVEL, HEAVILY COMPACTED SOILS, OR 600�m Optional earth embankment
BUILD ANY ASSOCIATED EMBANKMENTS. SOILS THAT HAVE BEEN RECENTLY
1 1
TREATED WITH HERBICIDES. 1000mm �mm! /
to increase flow capacity
5. EXCAVATE THE DIVERSION CHANNEL (min) and/or act as freeboard
TO THE SPECIFIED SHAPE, ELEVATION 6. ENSURE THE TURF EXTENDS UP THE
AND GRADIENT THE SIDES OF THE SIDES OF THE DRAIN AT LEAST 100mm
CHANNEL SHOULD BE NO STEEPER THAN ABOVE THE ELEVATION OF THE CHANNEL Direction
A 2:1 (H:V) IF CONSTRUCTED IN EARTH, INVERT, OR AT LEAST TO A SUFFICIENT
UNLESS SPECIFICALLY DIRECTED WITHIN ELEVATION TO FULLY CONTAIN
of inflow
THE APPROVED PLANS. EXPECTED CHANNEL FLOW
6. STABILISE THE CHANNEL AND BANKS 7. ON CHANNEL GRADIENTS OF 3:1(H:V)
IMMEDIATELY UNLESS IT WILL OPERATE OR STEEPER, OR IN SITUATIONS WHERE
FOR LESS THAN 30 DAYS. IN EITHER HIGH FLOW VELOCITIE$ (i.e. VELOCITY
CASE, TEMPORARY EROSION >1.5m/s) ARE LIKELY WITHIN THE FIRST
PROTECTION (MATTING, ROCK, ETC.) TWO WEEK FOLLOWING PLACEMENT,
a: WILL BE REQUIRED AS SPECIFIED WITHIN SECURE THE INDIVIDUAL TURF STRIPS
� THE APPROVED PLANS OR AS DIRECTED.
I
l"
WITH WOODEN OR PLASTIC PEGS. Figure 1 - Typical profile of diversion channel with bank
7. ENSURE THE CHANNEL DISCHARGES 8. ENSURE THAT INTIMATE CONTACT IS
I Dec-09 I Diversion Channels
Drawn: Date:
� TO A STABLE AREA ACHIEVED AND MAINTAINED BETWEEN
·�,
fi GMW DC-01
cal
UL___________________________________L____L-.-_____.________________,�----"