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Appendix C - Engineering
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SEDIMENT RELEASE GUIDELINES a. TEMPORARY DRAINAGE CONTROL FLOWS SHOULD BE
DIVERTED AROUND THE WORK SITE WHERE POSSIBLE.
1. ALL RELEASES OF STORMWATER CAPTURED ONSITE, UNLESS b. ALL DRAINAGE, EROSION AND SEDIMENT CONTROLS TO BE
OTHERWISE NOTED IN THIS STANDARD, MUST NOT EXCEED THE INSTALLED AND BE OPERATIONAL BEFORE COMMENCING
FOLLOWING LIMITS: UP-SLOPE EARTHWORKS.
· 50mg/L OF TOTAL SUSPENDED SOLIDS (TSS) AS A MAXIMUM c. IN AREAS WHERE RUNOFF TURBIDITY IS TO BE CONTROLLED,
CONCENTRATION; EXPOSED SURFACES TO BE EITHER MULCHED, COVERED
· TURBIDITY (NTU) VALUE LESS THAN 10% ABOVE BACKGROUND; WITH EROSION CONTROL BLANKETS OR TURFED IF
· pH VALUE MUST BE IN THE RANGE 6.5 TO 8.5 EXCEPT WHERE, EARTHWORKS ARE EXPECTED TO BE DELAYED FOR MORE
3 AND TO THE EXTENT THAT, THE NATURAL RECEIVING WATERS THAN 14 DAYS.
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TI6337 LIE OUTSIDE THIS RANGE.
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2. THE CONCENTRATION OF TSS RELEASED BY DEWATERING MAY SEDIMENT FENCE
ONLY EXCEED 50mg/L WHERE IT CAN BE DEMONSTRATED AND 10. FOR SEDIMENT FENCE STANDARD DETAIL AND SPECIFICATION
3.94
SUPPORTED THROUGH DOCUMENTATION THAT: REFER TO INTERNATIONAL EROSION CONTROL ASSOCIATION
· FURTHER SIGNIFICANT RAINFALL IS FORECAST TO OCCUR AUSTRALASIA (IECA) BEST PRACTICES STANDARD DRAWINGS
// // // |S| // |S| BEFORE THE TSS CONCENTRATION IS LIKELY TO BE REDUCED TO SF-01 AND SF-02 SEDIMENT FENCE.
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50m TEMPORARY CONSTRUCTION ENTRY/EXIT
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UP · g/L; 11. FOR CONSTRUCTION ENTRY / EXIT STANDARD DETAIL AND
· RELEASING A HIGHER CONCENTRATION OF TOTAL SUSPENDED SPECIFICATION REFER TO INTERNATIONAL EROSION CONTROL
2.0
SOLIDS WILL RESULT IN A BETTER ENVIRONMENTAL OUTCOME ASSOCIATION AUSTRALASIA (IECA) BEST PRACTICES STANDARD
BY PROVIDING STORAGE FOR THE CAPTURE AND TREATMENT OF DRAWINGS EXIT-01 AND EXIT-02 CONSTRUCTION EXIT - ROCK PAD
3.6
RUN-OFF FROM THE IMMINENT RAINFALL AND RUN-OFF. (CONSTRUCTION SITES ONLY), EXIT-03 - ROCK PADS FOR
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· ALL REASONABLE AND PRACTICABLE STEPS HAVE BEEN TAKEN BUILDING SITES AND EXIT-04 AND EXIT-05 CONSTRUCTION EXIT -
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TO TREAT THE WATER WITHIN BEST-PRACTICE TIME FRAMES; VIBRATION GRID.
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· FLOCCULENT HAS BEEN APPROPRIATELY APPLIED AND THE KERB INLET
3.4
CONCENTRATION OF TSS IN THE CAPTURED WATER HAS 12. FOR KERB INLET STANDARD DETAIL AND SPECIFICATION REFER
3.79
POOL POOL DECK DECK LIVING CARPORT PROVIDE TEMPORARY ALREADY SIGNIFICANTLY DECREASED. TO INTERNATIONAL EROSION CONTROL ASSOCIATION
2.2
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RL 2.40 RL 2.76 RL 2.80 RL 2.60 SEDIMENT FENCE. 3. FOR ALL OTHER STORMWATER RELEASES, FLOWS AND AUSTRALASIA (IECA) BEST PRACTICES STANDARD DRAWING
3.
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REFER 031 FOR DETAILS DISCHARGES FROM THE SITE, THE RELEASE LIMIT PRESCRIBED ESC-03 KERB INLET SEDIMENT TRAPS
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IN (1A) ABOVE MUST NOT BE EXCEEDED UNLESS THE REVEGETATION
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DEVELOPMENT IS IN FULL COMPLIANCE WITH THIS STANDARD. 13. FOR REVEGETATION STANDARD SPECIFICATION REFER TO
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WATER VALVE
INTERNATIONAL EROSION CONTROL ASSOCIATION AUSTRALASIA
2.4
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3.74
SEDIMENT CONTROL (IECA) BEST PRACTICES STANDARD DRAWING R-01
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1. ALL SEDIMENT AND EROSION CONTROL MEASURES TO BE IN REVEGETATION GENERAL.
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SW SW ACCORDANCE WITH INTERNATIONAL EROSION CONTROL FIELD INLET
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ASSOCIATION (IECA) AUSTRALIA GUIDELINES AND THE 14. FOR FIELD INLET STANDARD DETAIL AND SPECIFICATION REFER
SPECIFICATIONS. TO INTERNATIONAL EROSION CONTROL ASSOCIATION
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2. SEDIMENT AND EROSION CONTROL DETAILS SHOWN ARE AUSTRALASIA (IECA) BEST PRACTICES STANDARD DRAWING
3.61
MINIMUM REQUIREMENTS. IT IS THE CONTRACTORS ESC-02 GRATED STORMWATER (FIELD) INLET SEDIMENT TRAP.
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RESPONSIBILITY TO INSTALL ADDITIONAL CONTROL MEASURES OPERATION AND MAINTENANCE
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POOL POOL DECK DECK AS DEEMED NECESSARY THROUGHOUT CONSTRUCTION. 15. IN ACCORDANCE WITH NC ESC GUIDELINES, ALL ESC MEASURES
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LIVING CARPORT
RL 2.40 RL 2.76 RL 2.80 RL 2.60 3. THE CONTRACTOR IS RESPONSIBLE TO MAINTAIN ALL SEDIMENT SHALL BE INSPECTED: · AT LEAST DAILY (WHEN WORK IS
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CONTROL DEVICES IN A FUNCTIONAL ORDER AND REPLACE ALL OCCURRING ON SITE) OR WEEKLY (WHEN WORK IS NOT
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BLOCKED SEDIMENT DEVICES AS REQUIRED UNTIL SUCCESSFUL OCCURRING ON SITE) · WITHIN 24 HOURS OF EXPECTED RAIN;
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OFF MAINTENANCE OF WORKS. AND · WITHIN 18 HOURS OF A RAINFALL EVENT (I.E. AN EVENT OF
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4. CONSTRUCTION OF ALL SEDIMENT MANAGEMENT DEVICES TO SUFFICIENT INTENSITY AND DURATION TO MOBILISE SEDIMENT
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THE SATISFACTION OF THE SUPERINTENDENT. SHALL BE ON SITE).
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COMPLETED AND EFFECTIVE PRIOR TO: 16. IN ACCORDANCE WITH NC ESC GUIDELINES, MAINTENANCE OF
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a. STRIPPING OF TOPSOIL AND GRASS. ESC MEASURES SHALL OCCUR IN ACCORDANCE WITH THE
3.41
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b. BULK EARTHWORKS TO THE SITE. FOLLOWING TABLE:
c. SERVICES INSTALLATION.
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d. PAVEMENT CONSTRUCTION
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MAINTENANCE SCHEDULE
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5. ALL SEDIMENT MANAGEMENT MEASURES ARE TO REMAIN IN
TELE PIT
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PLACE UNTIL INSTRUCTION IS RECEIVED IN WRITING FROM THE
TIMEFRAME FOR
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ESC MEASURES COMPLETION OF
CONTROL APPLICATIONS. TRIGGER
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6. THE BULK EARTHWORKS AND SEDIMENT CONTROL LAYOUT PLAN MAINTENANCE
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SHALL BE READ IN CONJUNCTION WITH THE APPROVED WHEN SETTLED
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3.31
PROPOSED TEMPORARY
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DRAWINGS. SEDIMENT EXCEEDS
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CONSTRUCTION ENTRY/EXIT. SEDIMENT BASIN WITHIN 7 DAYS OF
7. PRIOR TO COMMENCEMENT OF CONSTRUCTION APPROVAL IS TO THE VOLUME OF THE
REFER 031 FOR DETAIL (WHERE UTILISED) THE INSPECTION
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BE OBTAINED FROM THE SUPERINTENDENT FOR THE LOCATION SEDIMENT STORAGE
OF THE SITE ACCESS POINT AND WASH DOWN AREA WHICH ARE ZONE
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SW GRATE
3.48
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TO BE MAINTAINED THROUGHOUT THE CONSTRUCTION PERIOD.
DECK LIVING CARPORT
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8. IF SEDIMENT AND EROSION CONTROL DEVICES HAVE BEEN 1/3 OF THE CAPACITY
RL 2.80
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RL 2.76 RL 2.60 OTHER ESC BY THE END OF THE
FOUND TO BE DIFFERENT OR FAILED IN SERVICE, CORRECTIVE OF ESC MEASURES IS
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MEASURES DAY
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ACTION IS TO BE UNDERTAKEN IMMEDIATELY WHICH MAY
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EXCEEDED
3.4
2.0
INCLUDE AMENDMENTS' ADDITIONS TO THE ORIGINAL APPROVED
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EROSION CONTROL PLANS. SUCH AMENDMENTS ARE TO BE
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APPROVED BY SUPERINTENDENT, IF DEEMED NECESSARY AND REPORTING
3.2
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17. CONTRACTOR IS TO PROVIDE AN UPDATED PROGRAM OF ESC
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RELEVANT.
POOL 9. OVERALL MAINTENANCE AND CONTROL OF ALL STAGES OF WORK FOR
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APPROVAL BY THE SUPERINTENDENT.
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3.0
3.16
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DO
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POOL
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ON
2.2
2.8
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3.2
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EL
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UP
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DECK LIVING CARPORT
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RL 2.76 RL 2.80 RL 2.60
KE
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2.4
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LEGEND:
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3. 3.0 EXISTING MAJOR CONTOUR EXISTING WATER VALVE
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2.6
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EXISTING MINOR CONTOUR ADJACENT BOUNDARY
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