Appendix C - Amended Engineering Plans

DocuSign Envelope ID: 22E128D2-2EDF-46AA-9C51-5EAAE4168E03

       EROSION AND SEDIMENT CONTROL NOTES:                                                                                                           SEDIMENT MANAGEMENT PROGRAM:
       1.       THE CONTRACTOR IS TO TAKE ALL NECESSARY PRECAUTIONS TO CONTROL AND MINIMISE EROSION AND                                              1. CLEARING
                                                                                                                                                                                                                                                                                                                                                                                MIN LE                          BERM (0.3m MIN
                DOWNSTREAM SEDIMENTATION DURING ALL STAGES OF CONSTRUCTION INCLUDING THE MAINTENANCE PERIOD.                                         - INSTALL APPROPRIATE SAFETY FENCING AND SIGNAGE.                                                                                                                                                                                           NGTH 15
                                                                                                                                                                                                                                                                                                                                                                                                          .0m   HIGH)
       2.       NOTWITHSTANDING THE DESIGN SHOWN ON THE DRAWINGS, THE CONTRACTOR IS RESPONSIBLE TO IMPLEMENT                                         - SEDIMENT FENCE, SEDIMENT BASINS AND DIVERSION DRAINS TO BE CONSTRUCTED AS REQUIRED.
                SEDIMENT CONTROL DEVICES USING BEST PRACTICES AS NECESSARY TO MINIMISE THE QUANTITY OF SEDIMENT                                      - EXISTING GRASSED AREAS TO REMAIN WHERE POSSIBLE.                                                                                                                                                                 0.2m
                LEAVING THE SITE.                                                                                                                    - SHAKE DOWN/WASH DOWN BAY AT NOMINATED ENTRY/EXIT POINT ON TRADING POST ROAD AS REQUIRED.                                                                                                                                                                 3.0m
                                                                                                                                                                                                                                                                                                                                                                                                    MIN WIDTH
       3.       SOME VARIATIONS TO THE SPECIFIED CONSTRUCTION SEQUENCE MAY BE NECESSARY IN CERTAIN AREAS TO                                          - CONSTRUCT UPSTREAM CLEAN WATER DIVERSION DRAINS                                                                                                             GEOTEXTILE
                FACILITATE CONSTRUCTION. WHERE THIS IS THE CASE, ANY VARIATION MUST BE APPROVED BY THE                                               - SUPERINTENDENT TO CONFIRM EXTENT OF CLEARING TO CONTRACTOR PRIOR TO COMMENCEMENT OF WORKS.                                                                  FABRIC
                SUPERINTENDENT PRIOR TO IMPLEMENTATION.                                                                                              - REFER ALSO TO VEGETATION MANAGEMENT PLAN.
       4.       AT ALL TIMES THE CONTRACTOR SHALL MONITOR THE PREVAILING WEATHER CONDITIONS AND PROTECT ANY                                          2. EARTHWORKS                                                                                                                                                     RUNOFF FROM PAD DIRECTED                                                     50-75mm
                DOWNSTREAM CONSTRUCTION GULLY INLETS.                                                                                                - SEDIMENT FENCES AND DIVERSION DRAINS TO BE CONSTRUCTED AS REQUIRED                                                                                              TO SEDIMENT TRAP                                                             GRAVEL
       5.       CLEARING OF SITE AND STOCKPILE SITE TO BE DETERMINED ON SITE BY SUPERINTENDENT AND IS TO BE CLEAR OF                                 3. STOCKPILE
                ANY WATER COURSE.                                                                                                                    - SEDIMENT FENCE TO BE ERECTED 5m FROM TOE OF BATTER ON LOW SIDE OF STOCKPILE.
       6.       WHERE POSSIBLE PROVIDE CUT-OFF DRAINS TO DIVERT CLEAN WATER FROM UNDISTURBED CATCHMENT.                                              - CUT OFF DRAIN ON HIGH SIDE TO DIRECT SURFACE RUNOFF AROUND STOCKPILE.
       7.       ALL PERIMETER BANKS/SWALES SHALL HAVE UNINTERRUPTED POSITIVE GRADE TO AN OUTLET.
                                                                                                                                                                                                                                                                                                            TEMPORARY CONSTRUCTION EXIT WASHDOWN DEVICE
                                                                                                                                                     4. MAINTENANCE PERIOD                                                                                                                                                                                                     N.T.S.
       8.       CONSTRUCT WASH DOWN BAY OR SHAKE DOWN AT ENTRY/EXIT TO COUNCIL STANDARDS AND TO THE SATISFACTION                                     - ALL EROSION AND SEDIMENT CONTROL MEASURES SHALL BE INSPECTED:
                OF COUNCIL'S LICENSING AND COMPLIANCE OFFICER.                                                                                         - AT LEAST DAILY (WHEN WORK IS OCCURRING ON SITE) OR WEEKLY (WHEN WORK IS NOT OCCURRING ON SITE)
       9.       THE EXTENT OF GRASSING OR HYDROMULCHING BE DETERMINED BY THE ENGINEER AND SHALL BE SEEDED, AS                                          - WITHIN 24 HOURS OF EXPECTED RAIN; AND
                SPECIFIED, WITHIN SEVEN DAYS OF FINAL TRIMMING.                                                                                        - WITHIN 18 HOURS OF A RAINFALL EVENT                                                                                                                                                                                        REMOVE FABRIC BETWEEN
       10.      THE CONTRACTOR SHALL BE RESPONSIBLE FOR COMPLYING WITH COUNCIL'S REQUIREMENTS IN RELATION TO GRASS                                   - ALL EROSION AND SEDIMENT CONTROL MEASURES SHALL BE MAINTAINED THE SAME DAY WHEN THE CAPACITY OF                                                                                                                              STEEL PICKET IN SAGS
                STRIKE AND GRASS COVERAGE RATES AT THE ON AND OFF MAINTENANCE INSPECTIONS.                                                           THE EROSION AND SEDIMENT CONTROL MEASURE FALLS BELOW 75%.
       11.      ALL MATERIALS TRACKED OR SEDIMENT WASHED ONTO COUNCIL'S ROAD FROM THE DEVELOPMENT ARE TO BE                                          - ANY REPAIRS TO EROSION AND SEDIMENT CONTROL DEVICES ARE TO BE EFFECTED IMMEDIATELY. SEDIMENT
                BROOMED UP AND COLLECTED.                                                                                                            AFTER RAIN IS TO BE CLEANED FROM STREETS AND ALLOTMENTS IMMEDIATELY AND CORRECTIVE ACTION TAKEN
       12.      ALL SEDIMENT CONTROL DEVICES SHALL BE MONITORED, CLEANED AND/OR REPAIRED WHENEVER THE CAPACITY OF                                    TO AVOID A RE-OCCURRENCE OF THE FAILURE.
                THE EROSION AND SEDIMENT CONTROL MEASURE FALLS BELOW 75%.
       13.      ALL EROSION AND SEDIMENT CONTROL MEASURES SHALL BE INSPECTED AT LEAST DAILY (WHEN WORK IS
                OCCURRING ON SITE) OR WEEKLY (WHEN WORK IS NOT OCCURRING ON SITE). WITHIN 24 HOURS OF EXPECTED RAIN                                  CONSTRUCTION SEQUENCE:                                                                                                                                                                                                                           SAND BAGS BOTH SIDES
                AND WITHIN 18 HOURS OF A RAINFALL EVENT AS REQUIRED TO MAINTAIN CONTROL DEVICES.                                                     A.    CONSTRUCT ENTRY AND EXIT POINT TOGETHER WITH SHAKE DOWN DEVICE ON TRADING POST ROAD.                                                                             MESH OR GEOFABRIC                                                         OF OVERFLOW PATH
       14.      ALL TEMPORARY EROSION AND SEDIMENT CONTROL (ESC) MEASURES ARE TO BE MAINTAINED AND FULLY                                             B.    ERECT SEDIMENT FENCES ALONG DOWNSTREAM ADJACENT PROPERTY BOUNDARIES. PLACE BARRIER FENCES                                                                            ON GROUND TO                                                          EXTEND TO BACK OF
                OPERATIONAL DURING THE MAINTENANCE PERIOD, AND ARE TO BE REMOVED AFTER THE SATISFACTORY                                                    AROUND LOTS OR AREAS THAT DO NOT REQUIRE DISTURBANCE TO ENSURE AREAS REMAIN UNDISTURBED.                                                                           REDUCE EROSION                                                          PAVEMENT BOX
                COMPLETION OF AN 'OFF MAINTENANCE' INSPECTION AND PRIOR TO FORMAL ACCEPTANCE BY COUNCIL.                                             C.    CONSTRUCT CLEAN WATER DIVERSION SWALES TO ENSURE UPSTREAM RUNOFF IS DIVERTED AROUND THE SITE.
       15.      NO OBSTRUCTIONS SHALL BE PLACED ON COUNCIL'S PUBLIC ROADS OR GULLY PITS FOR SAFETY REASONS.                                                ALL DIVERSION SWALES ARE TO BE CONSTRUCTED PRIOR TO ANY EARTHWORKS OPERATIONS.                                                                                           SPILL THROUGH WEIR DETAIL
                                                                                                                                                     D.    CLEARING, GRUBBING AND EARTHWORKS OF SEDIMENT BASIN AREAS ONLY.                                                                                                        INSTALL AT ALL SAG POINTS IN SILT FENCES
                                                                                                                                                     E.    CONSTRUCT TEMPORARY SEDIMENT BASINS, WITH NON-DISPERSIVE MATERIAL, SPILLWAY, AND OTHER
                                                                                                                                                           ASSOCIATED WORKS.
                                                                                                                                                     F.    CONSTRUCT DIVERSION DRAINS DIRECTING DIRTY WATER INTO SEDIMENT BASINS.
                                                                                                                                                     G.    CLEARING, GRUBBING AND STRIPPING FOR THE REMAINDER OF THE SITES EARTHWORKS AREAS. DIRECT RUN-OFF                                               SEDIMENT CONTROL FABRIC TO BE                                                          POSTS AT NOMINAL 2.0m
       SEDIMENT BASIN NOTES:                                                                                                                               TO SEDIMENT BASINS.                                                                                                                            'PROPEX' OR SIMILAR APPROVED                                                           CTRS TO BE STEEL PICKET
       1.     SEDIMENT BASIN CONSTRUCTION AND MAINTENANCE TO BE IN ACCORDANCE WITH SOIL EROSION AND SEDIMENT                                         H.    UNDERTAKE EARTHWORKS OPERATIONS..                                                                                                              TOP EDGE TO BE SUITABLY                                                                OR 50 x 50 HARDWOOD
              CONTROL - ENGINEERING GUIDELINES FOR QLD CONSTRUCTION SITES - IEA QLD; AS PER NOOSA SHIRE COUNCIL PSP05                                I.    ERECT SEDIMENT FENCES TO LOTS.                                                                                                                 SUPPORTED BETWEEN POSTS
              CLAUSE 5.2.                                                                                                                            J.    PLACE SEDIMENT FENCES AT BOUNDARIES ADJACENT TO ROADWAYS WHERE LOT SLOPES TOWARDS ROAD.
       2.     FOR THE ENTIRE EMBANKMENT AREA STRIPPING OF VEGETATION AND ANY HIGHLY ORGANIC TOP SOILS AND ANY SOFT                                   K.    TOPSOIL AND GRASS SEED ALL REMAINING LOTS FOLLOWING PROGRESSIVE COMPLETION OF EARTHWORKS IF
              CLAYS TO DEPTHS OF APPROXIMATELY 0.3m IS REQUIRED.                                                                                           DIRECTED BY SUPERINTENDENT.                                                                                                                                                                                                               NOTE:
       3.     THE STRIPPED SURFACE IS TO BE INSPECTED AND TESTED BY A GEOTECHNICAL ENGINEER.                                                         L.    ON COMPLETION OF WORKS AS STATED ABOVE, ESTABLISHMENT OF 70% GRASS COVER AND APPROVAL BY                                                                                                                                                  PROVIDE SMALL UPSTREAM
       4.     SUBJECT TO THE GEOTECHNICAL ENGINEER INSPECTION EXCAVATION OF A CUTOFF KEY ALONG THE EMBANKMENT                                              COUNCIL, REMOVE SEDIMENT BASIN, SEDIMENT TRAPS AND REHABILITATE AREAS. GRASS SEED IMMEDIATELY.                                                                                                                                            RETURNS (2-3m) AT 30m MAX.
              CENTERLINE AT LEAST 0.5m - 1.0m INTO THE FOUNDATION MATERIALS SHALL BE REQUIRED.                                                             PLACE SEDIMENT FENCES TO DOWNSTREAM SIDES OF DISTURBED AREAS.                                                                                                                                                                             SPACINGS ALONG FENCE
                                                                                                                                                                                                                                                                                                                                                                                    700 APPROX




       5.     THE CLAY FILLING FOR THE BASIN SHOULD BE PLACED IN HORIZONTAL LAYERS OF 200mm THICKNESS AND COMPACTED                                  M.    COMPLETE REMAINING EARTHWORKS OPERATIONS TO AREAS WHERE SEDIMENT BASINS AND DIVERSION DRAINS
                                                                                                                                                                                                                                                                                                                                                                                                   FALL
              TO A DENSITY RATIO WITHIN THE RANGE 98% - 102% STANDARD COMPACTION (AS 1289.5.1.1). PLACEMENT MOISTURE                                       HAVE BEEN REMOVED. ENSURE ADEQUATE SEDIMENT FENCES ARE PLACED DOWNSTREAM OF ALL WORKS.
                                                                                                                                                                                                                                                                                                                                                                                    450




              CONTENTS SHOULD BE WITHIN THE RANGE OMC - 1% TO OMC + 2% (WHERE OMC = OPTIMUM MOISTURE CONTENT FOR                                                                                                                                                                                                                           200 X 200
              STANDARD COMPACTION).                                                                                                                  EROSION RISK ASSESSMENT:                                                                                                                                                              TRENCH
       8.     WATER QUALITY SAMPLES MUST BE TAKEN AND ANALYSED PRIOR TO THE RELEASE OF ANY WATER FROM THE SEDIMENT                                   SOIL LOSS ESTIMATE BASED ON REVISED UNIVERSAL SOIL LOSS EQUATION (RUSLE):
              BASINS. WATER QUALITY MUST SATISFY THE FOLLOWING CRITERIA: TSS < 50mg/L, PH BETWEEN 6.5 AND 8.5 AT ALL TIMES.                               A = K x R x LS x P x C EQUATION 1 (IECA 2008) WHERE:                                                                                                                       SEDIMENT FENCE DETAIL
              RESULTS ARE REQUIRED TO BE FORWARDED TO SUPERINTENDENT WITHIN 48 HOURS OF SAMPLING.                                                          R = 3646 (GYMPIE AREA - IECA 2008)                                                                                                                                                                              N.T.S.
       9.     ALL WATER QUALITY SAMPLES DATA INCLUDING DATES OF RAINFALL, DATES OF TESTING AND WATER RELEASE, MUST BE                                                                                                                                                              3.0m WIDE MIN.
                                                                                                                                                           K = 0.025 (IECA 2008 TABLE E4 & E5)
              MAINTAINED IN AN ON-SITE REGISTER. THIS REGISTER IS TO BE MAINTAINED FOR THE DURATION OF THE APPROVED                                                                                                                                                     1 in                                              TOP OF BANK
                                                                                                                                                           LS = 0.79 (IECA 2008 TABLE E3)                                                                                      2                                in 2
              WORKS, AND BE AVAILABLE FOR INSPECTION BY COUNCIL OFFICERS ON REQUEST.                                                                                                                                                                                                                        1
                                                                                                                                                           P = 1.3 (DEFAULT - IECA 2008)
       10.    FLOCCULATION AGENT FOR TYPE 'D' BASIN SHALL BE GYPSUM DOSED AT ABOUT 32kg/100Cum. CONTRACTOR TO HAVE
              SUPPLY OF FLOCCULATION AGENT AVAILABLE ON SITE.
                                                                                                                                                           C = 1 (DEFAULT - IECA 2008)                                                       EXTEND SANDBAGS TO
       11.    FLOCCULATION, TESTING AND DEWATERING IN A NON-EROSIVE MANNER SHALL BE COMPLETED WITHIN 5 BUSINESS DAYS                                                                                                                         BATTER EXTENTS
              FROM A RUN-OFF INCLUDING RAIN EVENT. ANY WATER DISCHARGED FROM THE SEDIMENT BASIN AND RELEASED                                                A = 93.611                                                                                                             GEOTEXTILE                           ROCK LINED BASE, 300mm
              OFF-SITE MUST ACHIEVE THE WATER QUALITY CRITERIA PRIOR TO BEING RELEASED FROM THE SITE.                                                                                                                                                                                                                   THICK. SIZE D50 = 200mm.
       12.    ALL REASONABLE AND PRACTICAL MEASURES SHALL BE TAKEN TO DIRECT STORMWATER TO SEDIMENT BASINS USING                                     SOIL LOSS IS LESS THAN 150t/ha/yr, THEREFORE TYPE '2' SEDIMENT                                                                                                                                                                                                      ROCK FILTER DAM OUTLET STRUCTURE
              CONTOURED CATCH DRAINS.                                                                                                                CONTROLS AREA APPROPRIATE FOR USE ON THIS SITE                                                               EMERGENCY OVERFLOW SPILLWAY                                                                                                                            0.30m HIGH. PROVIDE 100mm DEEP 1m
       13.    WHERE REQUIRED DURING ROAD CONSTRUCTION, SUITABLE GAPS IN THE KERB SHALL BE LEFT IN ORDER TO ALLOW                                                                                                                                                                         N.T.S.                                                                                                                          WIDE WEIR AT EMERGENCY SPILLWAY
              DIVERSION DRAINS AND THE PLACEMENT OF SAND BAGS ACROSS THE ROAD WIDTH TO DIVERT SURFACE FLOWS TO                                                                                                                                                                                                                                                                                                           LOCATION AS HIGHLIGHTED ON
              TEMPORARY SEDIMENT BASINS.                                                                                                                                                                                                                                                                                                                                                                                 LAYOUT PLAN. SPILLWAY SIZED TO
       14.    BASINS INLETS SHALL BE PROTECTED FROM EROSION AND SCOUR BY IMPLEMENTING ROCK OR GEOTEXTILE LINED                                                                                                                                                                                                                                                                                      0.30m                ALLOW FOR Q10 FLOWS
                                                                                                                                                                                                                                        EXISTING SURFACE (INDICATIVE)
              CHUTES.
                                                                                                                                                                                                                                                                                                                                              1 in 2 MAX
       15.    A PRIMARY OUTLET/EMERGENCY SPILLWAY SHALL BE IMPLEMENTED ON EACH SEDIMENT BASIN TO ACCOMMODATE A
              20-YEAR ARI.                                                                                                                                                                                                                                                                                                                                                                                                        1 in 3 MAX
       16.    SEDIMENT BASINS EMERGENCY SPILLWAYS, SPILLWAY CHUTES AND OUTLET CHANNELS FROM THE SEDIMENT BASINS                                                                      SAND BAG PROTECTION
                                                                                                                                                                                     (SAND BAGS TO BE EMBEDDED 50mm,
              SHALL BE ADEQUATELY STABILISED AGAINST EROSION/SCOUR AND REMAIN STRUCTURALLY STABLE UP TO AND
                                                                                                                                                                                     AND ARE TO EXTEND 150mm ABOVE
              INCLUDING THE A 20-YEAR ARI RAIN EVENT".
                                                                                                                                                                                     THE SURFACE LEVEL OF INLET)
       17.    ALL BASINS TO BE SURROUNDED BY TEMPORARY SAFETY FENCING AND WARNING SIGNS SHALL BE ERECTED
                                                                                                                                                                                                                                          STABILISED SIDEWALLS OF                                                                                                                                               EMBANKMENT CORE ROCK. WELL GRADED,
              SURROUNDING THE BASIN AND STEEP, INTERNAL SLOPES SHALL BE AVOIDED.                                                                                                                                                                                                                                                                                                                                HARD, ANGULAR, EROSION RESISTANT
                                                                                                                                                                                                                                          EXCAVATED TRENCH AS NECESSARY
                                                                                                                                                                                                                                          WITH FILTER CLOTH OR EQUIVALENT                                                                                                                                       ROCK MATERIAL 225mm NOMINAL DIAMETER
                                                                                                                                                                                                                                                                                                                                                  VARIES - 0.50m MIN.




                                                                                                                                                                                                                                                                                                                                                                                                  AGGREGATE FILTER. PROVIDE 15 T0
                                                                                                                                                                                                                                                             EXCAVATED TRENCH
                                                                                                                                                                                                                                                                                                                   VARIES - 2.00m MIN.                                                            25mm CLEAN AGGREGATE



                                                                                                                                                      FIELD INLET PROTECTION                                                                                       SEDIMENT TRENCH WITH ROCK FILTER DAM OUTLET N.T.S.
                                                                                                                                                                    N.T.S.                                                                                                                                        N.T.S.
                                                                                                                                                                                                                                                                                                                                                                                                           N.S.C. REF NO. MCU15/0111 & REC15/0031
                                                                                                   DRAWN    STATUS                                                  SCALE                                              CLIENT                                                                                                    PROJECT                                                                          DRAWING TITLE
REVISION      DATE   ISSUE DETAILS                                                DRAWN   DESIGN
   A         21.12.16 ORIGINAL ISSUE                                               HT      BF                                                                                                                                   PALM LAKE WORKS PTY LTD                                                                                   PALM LAKE RESORT                                                               EROSION AND SEDIMENT
   1         06.04.17 ISSUED FOR CONSTRUCTION                                      BF      BF
                                                                                                                       FOR CONSTRUCTION
                                                                                                                                                                         1:250   5        0       5       10   A1                                                                                                                               STAGE 3                                                                CONTROL DETAILS AND NOTES
                                                                                                   DESIGN   APPROVED                                                     1:500                                 A3                                                                                                                   19 TRADING POST ROAD - COOROY
                                                                                                            ANDREW McPHAIL                RPEQ 6921                                                                                                                                                                                                                                                               PROJECT No.                  DRAWING No.   REVISION
                                                                                                                                                                                                                                                                                                                                 DISCLAIMER
                                                                                                                                                                                                                                                                                                                                 ALL DIMENSIONS TO BE CHECKED ON SITE BY CONTRACTOR PRIOR TO                       16-003302                         3204       1
                                                                                                            FOR & ON BEHALF OF CALIBRE CONSULTING (QLD) PTY LTD                                                                                                           C 2015     www.calibreconsulting.co                    CONSTRUCTION. USE WRITTEN DIMENSIONS ONLY, DO NOT SCALE.