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Rfi - P0352-25-003-02-GYMPIE-ST-TEWANTIN
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SEDIMENT RELEASE GUIDELINES
1. ALL RELEASES OF STORMWATER CAPTURED ONSITE, UNLESS OTHERWISE NOTED IN THIS WRAP FILTER
1 METER MAX. STAR PICKETS
STANDARD, MUST NOT EXCEED THE FOLLOWING LIMITS: CLOTH OVER GRATE
· 50mg/L OF TOTAL SUSPENDED SOLIDS (TSS) AS A MAXIMUM CONCENTRATION; DROP INLET
· TURBIDITY (NTU) VALUE LESS THAN 10% ABOVE BACKGROUND; WITH GRATE
· pH VALUE MUST BE IN THE RANGE 6.5 TO 8.5 EXCEPT WHERE, AND TO THE EXTENT THAT, THE
NATURAL RECEIVING WATERS LIE OUTSIDE THIS RANGE. WIRE OR STEEL MESH
2. THE CONCENTRATION OF TSS RELEASED BY DEWATERING MAY ONLY EXCEED 50mg/L WHERE IT (14 GAUGE x 150mm
CAN BE DEMONSTRATED AND SUPPORTED THROUGH DOCUMENTATION THAT: OPENINGS) WHERE
· FURTHER SIGNIFICANT RAINFALL IS FORECAST TO OCCUR BEFORE THE TSS CONCENTRATION IS GEOTEXTILE IS NOT
SELF-SUPPORTING
LIKELY TO BE REDUCED TO 50mg/L;
· RELEASING A HIGHER CONCENTRATION OF TOTAL SUSPENDED SOLIDS WILL RESULT IN A WOVEN GEOTEXTILE
BETTER ENVIRONMENTAL OUTCOME BY PROVIDING STORAGE FOR THE CAPTURE AND
TREATMENT OF RUN-OFF FROM THE IMMINENT RAINFALL AND RUN-OFF.
· ALL REASONABLE AND PRACTICABLE STEPS HAVE BEEN TAKEN TO TREAT THE WATER WITHIN
500 - 600mm
BEST-PRACTICE TIME FRAMES;
· FLOCCULENT HAS BEEN APPROPRIATELY APPLIED AND THE CONCENTRATION OF TSS IN THE STAR PICKET
FITTED WITH WRAP FILTER CLOTH
CAPTURED WATER HAS ALREADY SIGNIFICANTLY DECREASED. RUNOFF OVER GRATE
3. FOR ALL OTHER STORMWATER RELEASES, FLOWS AND DISCHARGES FROM THE SITE, THE SAFETY CAP
WATER WITH 1.5m STAR PICKETS AT MAX.
RELEASE LIMIT PRESCRIBED IN (1A) ABOVE MUST NOT BE EXCEEDED UNLESS THE SEDIMENT 2.5m CENTRES
DEVELOPMENT IS IN FULL COMPLIANCE WITH THIS STANDARD.
SANDBAGS WOVEN GEOTEXTILE
SEDIMENT CONTROL
1. ALL SEDIMENT AND EROSION CONTROL MEASURES TO BE IN ACCORDANCE WITH INTERNATIONAL RUNOFF SELF-SUPPORTING
FLOW
EROSION CONTROL ASSOCIATION (IECA) AUSTRALIA GUIDELINES AND THE SPECIFICATIONS. WATER WITH FILTERED GEOTEXTILE
2. SEDIMENT AND EROSION CONTROL DETAILS SHOWN ARE MINIMUM REQUIREMENTS. IT IS THE SEDIMENT WATER
WATERWAY FLOW
CONTRACTORS RESPONSIBILITY TO INSTALL ADDITIONAL CONTROL MEASURES AS DEEMED DIRECTION OF
NECESSARY THROUGHOUT CONSTRUCTION.
3. THE CONTRACTOR IS RESPONSIBLE TO MAINTAIN ALL SEDIMENT CONTROL DEVICES IN A GEOTEXTILE INLET FILTER TYPE B
FUNCTIONAL ORDER AND REPLACE ALL BLOCKED SEDIMENT DEVICES AS REQUIRED UNTIL EXCAVATION SCALE N.T.S
SUCCESSFUL OFF MAINTENANCE OF WORKS. FILTERED ON SOIL, 150mm x 100mm
4. CONSTRUCTION OF ALL SEDIMENT MANAGEMENT DEVICES TO THE SATISFACTION OF THE WATER TRENCH WITH COMPACTED
SUPERINTENDENT. SHALL BE COMPLETED AND EFFECTIVE PRIOR TO: GEOTEXTILE BACKFILL AND ON ROCK, SET
a. STRIPPING OF TOPSOIL AND GRASS. EARTH BANK EMBEDDED 150mm INTO SURFACE CONCRETE
b. BULK EARTHWORKS TO THE SITE. INTO GROUND PROVIDE WASH WATER FOR
c. SERVICES INSTALLATION. TIMBER SLEEPER OR METAL TRUCKS EXITING SITE
d. PAVEMENT CONSTRUCTION FOR DROP INLETS AT NON-SAG POINTS, GRID 100mm HIGH AND
600mm MIN.
SECTION DETAIL
5. ALL SEDIMENT MANAGEMENT MEASURES ARE TO REMAIN IN PLACE UNTIL INSTRUCTION IS SANDBAGS, EARTH BANK OR EXCAVATION USED SPACED AT 300mm CTS MIN LE
RECEIVED IN WRITING FROM THE SUPERINTENDENT TO REMOVE ALL OR PART OF THE SILT NGTH
TO CREATE ARTIFICIAL SAG POINT 1 0m
CONTROL APPLICATIONS. BERM 300 HIGH MIN
CONSTRUCTION SITE
6. THE BULK EARTHWORKS AND SEDIMENT CONTROL LAYOUT PLAN SHALL BE READ IN GEOTEXTILE INLET FILTER CONSTRUCTION NOTES:
CONJUNCTION WITH THE APPROVED DRAWINGS.
MIN. 1.5m
20m MAX.
7. PRIOR TO COMMENCEMENT OF CONSTRUCTION APPROVAL IS TO BE OBTAINED FROM THE 1. FABRICATE A SEDIMENT BARRIER MADE FROM GEOTEXTILE OR STRAW BALES. EXISTING ROADWAY
SUPERINTENDENT FOR THE LOCATION OF THE SITE ACCESS POINT AND WASH DOWN AREA FLOW
WHICH ARE TO BE MAINTAINED THROUGHOUT THE CONSTRUCTION PERIOD. 2. PICKET SPACING TO BE A MAXIMUM 1.0m CENTRES.
8. IF SEDIMENT AND EROSION CONTROL DEVICES HAVE BEEN FOUND TO BE DIFFERENT OR FAILED STAR PICKETS AT
IN SERVICE, CORRECTIVE ACTION IS TO BE UNDERTAKEN IMMEDIATELY WHICH MAY INCLUDE GEOTEXTILE FABRIC MAX. 2.5m SPACINGS
3. IN WATERWAYS, ARTIFICIAL SAG POINTS CAN BE CREATED WITH SANDBAGS OR EARTH
AMENDMENTS' ADDITIONS TO THE ORIGINAL APPROVED EROSION CONTROL PLANS. SUCH BANKS AS SHOWN IN THE DRAWING. TYPICAL
AMENDMENTS ARE TO BE APPROVED BY SUPERINTENDENT, IF DEEMED NECESSARY AND 50-75mm GRAVEL BED MIN
RELEVANT. 4. DO NOT COVER THE INLET WITH GEOTEXTILES UNLESS THE DESIGN IS ADEQUATE TO 200mm THICK
9. OVERALL
ALLOW FOR ALL WATERS TO BYPASS IT.
a. TEMPORARY DRAINAGE CONTROL FLOWS SHOULD BE DIVERTED AROUND THE WORK SITE RUNOFF FROM PAD DIRECTED TO PLAN
WHERE POSSIBLE. SEDIMENT TRAP
b. ALL DRAINAGE, EROSION AND SEDIMENT CONTROLS TO BE INSTALLED AND BE OPERATIONAL
GEOTEXTILE INLET FILTER A
BEFORE COMMENCING UP-SLOPE EARTHWORKS. SCALE N.T.S
c. IN AREAS WHERE RUNOFF TURBIDITY IS TO BE CONTROLLED, EXPOSED SURFACES TO BE
TEMPORARY CONSTRUCTION VEHICLE EXIT
EITHER MULCHED, COVERED WITH EROSION CONTROL BLANKETS OR TURFED IF SCALE: N.T.S.
EARTHWORKS ARE EXPECTED TO BE DELAYED FOR MORE THAN 14 DAYS.
DIRECTION
DISTURBED 1.5m STAR PICKETS AT
SEDIMENT FENCE TIMBER SPACER TO SUIT KERB-SIDE INLET OF FLOW
AREA MAX. 2.5m CENTRES
10. FOR SEDIMENT FENCE STANDARD DETAIL AND SPECIFICATION REFER TO INTERNATIONAL
EROSION CONTROL ASSOCIATION AUSTRALASIA (IECA) BEST PRACTICES STANDARD DRAWINGS
SF-01 AND SF-02 SEDIMENT FENCE.
TEMPORARY CONSTRUCTION ENTRY/EXIT
11. FOR CONSTRUCTION ENTRY / EXIT STANDARD DETAIL AND SPECIFICATION REFER TO
INTERNATIONAL EROSION CONTROL ASSOCIATION AUSTRALASIA (IECA) BEST PRACTICES
STANDARD DRAWINGS EXIT-01 AND EXIT-02 CONSTRUCTION EXIT - ROCK PAD (CONSTRUCTION
SITES ONLY), EXIT-03 - ROCK PADS FOR BUILDING SITES AND EXIT-04 AND EXIT-05
CONSTRUCTION EXIT - VIBRATION GRID.
KERB INLET GRAVEL-FILLED WIRE MESH OR
12. FOR KERB INLET STANDARD DETAIL AND SPECIFICATION REFER TO INTERNATIONAL EROSION GEOTEXTILE "SAUSAGE"
CONTROL ASSOCIATION AUSTRALASIA (IECA) BEST PRACTICES STANDARD DRAWING ESC-03 UNDISTURBED
KERB INLET SEDIMENT TRAPS
OVERFLOW AREAS
REVEGETATION TIMBER SPACER
RUNOFF
13. FOR REVEGETATION STANDARD SPECIFICATION REFER TO INTERNATIONAL EROSION CONTROL TO SUIT
ASSOCIATION AUSTRALASIA (IECA) BEST PRACTICES STANDARD DRAWING R-01 REVEGETATION WATER WITH
GENERAL. SEDIMENT
FIELD INLET GRADIENT OF
14. FOR FIELD INLET STANDARD DETAIL AND SPECIFICATION REFER TO INTERNATIONAL EROSION DRAIN 1% TO 5% CAN BE CONSTRUCTED ALL BATTER GRADES
CONTROL ASSOCIATION AUSTRALASIA (IECA) BEST PRACTICES STANDARD DRAWING ESC-02 WITH OR WITHOUT 2(H):1(V) MAX.
GRATED STORMWATER (FIELD) INLET SEDIMENT TRAP. SEDIMENT CHANNEL
OPERATION AND MAINTENANCE
15. IN ACCORDANCE WITH IECA GUIDELINES, ALL ESC MEASURES SHALL BE INSPECTED: · AT LEAST DIRECTION STABILISE STOCKPILE SURFACE
GRAVEL-FILLED WIRE MESH FILTERED WATER OF FLOW
SEDIMENT FENCE CONSTRUCTION NOTES:
DAILY (WHEN WORK IS OCCURRING ON SITE) OR WEEKLY (WHEN WORK IS NOT OCCURRING ON
.
EARTH BANK
300mm MIN
OR GEOTEXTILE "SAUSAGE" 2:1
SITE) · WITHIN 24 HOURS OF EXPECTED RAIN; AND · WITHIN 18 HOURS OF A RAINFALL EVENT (I.E. X .) SL
MA OP 1. CONSTRUCT SEDIMENT FENCES AS CLOSE AS POSSIBLE TO BEING PARALLEL TO
AN EVENT OF SUFFICIENT INTENSITY AND DURATION TO MOBILISE SEDIMENT ON SITE).
PE( E( THE CONTOURS OF THE SITE, BUT WITH SMALL RETURNS AS SHOWN IN THE
FLOW O MA
16. IN ACCORDANCE WITH IECA ESC GUIDELINES, MAINTENANCE OF ESC MEASURES SHALL OCCUR SL X.)
IN ACCORDANCE WITH THE FOLLOWING TABLE: 2:1 DRAWING TO LIMIT THE CATCHMENT AREA OF ANY ONE SECTION. THE
2m MIN CATCHMENT AREA SHOULD BE SMALL ENOUGH TO LIMIT WATER FLOW IF
REPORTING MESH & GRAVEL INLET FILTER CONSTRUCTION NOTES:
CONCENTRATED AT ONE POINT TO 50 LITRES PER SECOND IN THE DESIGN
150mm MIN
17. CONTRACTOR IS TO PROVIDE AN UPDATED PROGRAM OF ESC MAINTENANCE AND CONTROL OF
ALL STAGES OF WORK FOR APPROVAL BY THE SUPERINTENDENT. STORM EVENT, USUALLY THE 10-YEAR EVENT.
1. INSTALL FILTERS TO KERB INLETS ONLY AT SAG POINTS. NOTE: ONLY TO BE USED AS TEMPORARY BANK SEDIMENT FENCE
WHERE MAXIMUM UPSLOPE LENGTH IS 80 METRES.
2. CUT A 150mm DEEP TRENCH ALONG THE UPSLOPE LINE OF THE FENCE FOR THE
2. FABRICATE A SLEEVE MADE FROM GEOTEXTILE OR WIRE
BOTTOM OF THE FABRIC TO BE ENTRENCHED.
MESH LONGER THAN THE LENGTH OF THE INLET PIT AND
FILL IT WITH 25mm TO 50mm GRAVEL. DIVERSION DRAIN CONSTRUCTION NOTES: STOCKPILE CONSTRUCTION NOTES:
3. DRIVE 1.5m LONG STAR PICKETS INTO GROUND AT 2.5m INTERVALS (MAX.) AT
1. BUILD WITH GRADIENTS BETWEEN 1% AND 5%. 1. PLACE STOCKPILES MORE THAN 2 (PREFERABLY 5) METRES FROM EXISTING THE DOWNSLOPE EDGE OF THE TRENCH. ENSURE ANY STAR PICKETS ARE
3. FORM AN ELLIPTICAL CROSS-SECTION ABOUT 150mm HIGH
VEGETATION, CONCENTRATED WATER FLOW, ROADS AND HAZARD AREAS. FITTED WITH SAFETY CAPS.
x 400mm WIDE.
2. AVOID REMOVING TREES AND SHRUBS IF POSSIBLE - WORK AROUND THEM.
2. CONSTRUCT ON THE CONTOUR AS LOW, FLAT, ELONGATED MOUNDS. 4. FIX SELF-SUPPORTING GEOTEXTILE TO THE UPSLOPE SIDE OF THE POSTS
4. PLACE THE FILTER AT THE OPENING LEAVING AT LEAST A
3. ENSURE THE STRUCTURES ARE FREE OF PROJECTIONS OR OTHER ENSURING IT GOES TO THE BASE OF THE TRENCH. FIX THE GEOTEXTILE WITH
100mm SPACE BETWEEN IT AND THE KERB INLET. MAINTAIN
IRREGULARITIES THAT COULD IMPEDE WATER FLOW. 3. WHERE THERE IS SUFFICIENT AREA, TOPSOIL STOCKPILES SHALL BE LESS WIRE TIES OR AS RECOMMENDED BY THE MANUFACTURER. ONLY USE
THE OPENING WITH SPACER BLOCKS.
THAN 2 METRES IN HEIGHT. GEOTEXTILE SPECIFICALLY PRODUCED FOR SEDIMENT FENCING. THE USE OF
4. BUILD THE DRAINS WITH CIRCULAR, PARABOLIC OR TRAPEZOIDAL SHADE CLOTH FOR THIS PURPOSE IS NOT SATISFACTORY.
5. FORM A SEAL WITH THE KERB TO PREVENT SEDIMENT
BYPASSING THE FILTER. CROSS-SECTIONS, NOT "V" SHAPED. 4. WHERE THEY ARE TO BE PLACE FOR MORE THAN 10 DAYS, STABILISE
FOLLOWING THE APPROVED ESCP OR SWMP TO REDUCE THE C-FACTOR TO 5. JOIN SECTIONS OF FABRIC AT A SUPPORT POST WITH A 150mm OVERLAP.
6. SANDBAGS FILLED WITH GRAVEL CAN SUBSTITUTE FOR THE 5. ENSURE BANKS ARE PROPERLY COMPACTED TO PREVENT FAILURE. LESS THAN 0.10.
6. BACKFILL THE TRENCH OVER THE BASE OF THE FABRIC AND COMPACT IT
MESH OR GEOTEXTILE PROVIDING THEY ARE PLACED SO
6. COMPLETE PERMANENT OR TEMPORARY STABILISATION WITHIN 10 DAYS 5. CONSTRUCT EARTH BANKS ON THE UPSLOPE SIDE TO DIVERT WATER THOROUGHLY OVER THE GEOTEXTILE.
THAT THEY CAN FIRMLY ABUT EACH OTHER AND
SEDIMENT-LADEN WATERS CANNOT PASS BETWEEN. OF CONSTRUCTION. AROUND STOCKPILES AND SEDIMENT FENCES 1 TO 2 METRES DOWNSLOPE.
MESH & GRAVEL INLET FILTER SEDIMENT FENCE
DIVERSION DRAIN STOCKPILES SCALE: N.T.S.
SCALE N.T.S SCALE N.T.S SCALE N.T.S
NOT FOR CONSTRUCTION
---- ---- ---- ---- ---- North Point Approved Project Address Title
---- ---- ---- ---- ----
E. WHITMORE
12 GYMPIE STREET, TEWANTIN SEDIMENT AND EROSION CONTROL NOTES AND DETAILS
---- ---- ---- ---- ---- 31423 11.11.25
---- ---- ---- ---- ---- For and on behalf of RECOR Pty Ltd.
---- ---- ---- ---- ---- Scale ENGINEERING & PROJECT SERVICES Client Details Project Name Sheet Size
SUNSHINE COAST | BRISBANE
17.02.26
ISSUED FOR OPW APPROVAL
ISSUED FOR OPW APPROVAL CS EW NTS www.recor.au | ABN 89 647 469 707 NOVATO GROUP 7 LOT RESIDENTIAL SUBDIVISION A1
A 11.11.25 ISSUED FOR OPW APPROVAL AY EW COPYRIGHT © This drawing is subject to copyright in accordance with the agreement between RECOR Pty Ltd and RECOR's Project Number Drawing Number Revision
client. This drawing shall only be used for this specific project. This drawing shall not be used for construction until marked as
Rev Date Revision Description Drawn Check DO NOT SCALE, IF IN DOUBT ASK 'Issued For Construction' in the revision description. P0198-25-001 C125 A
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