Review of Environmental Factors - Camden Valley Way Upgrade and Liz Kernohan Drive Extension (Final) - Flipbook - Page 137
EROSION AND SEDIMENT CONTROL NOTES
1.
PROVIDE EROSION AND SEDIMENT CONTROL MEASURES DURING CONSTRUCTION TO
COUNCIL STANDARDS AND CONFORMING TO LANDCOM SOILS & CONSTRUCTION Vol 1,
4th EDITION, MARCH 2004.
2.
PREPARE EROSION AND SEDIMENT CONTROL PLAN AND OBTAIN COUNCIL APPROVAL
PRIOR TO WORKS.
3.
ALL PERIMETER CONTROL DEVICES ARE TO BE INSTALLED PRIOR TO WORK
COMMENCING AND BE MAINTAINED DURING CONSTRUCTION. LOCATE SEDIMENT
FENCE WITHIN WORKS BOUNDARY.
4.
CONTRACTOR TO DEFINE ACCESS, STOCKPILE AND OTHER AREAS PRIOR TO WORK
COMMENCING.
5.
PROVIDE A SINGLE POINT OF ACCESS TO THE SITE.
6.
MINIMISE SITE DISTURBANCE AND REDUCE STOCKPILING TO A LEVEL NECESSARY TO
CONSTRUCT THE WORKS. STOCKPILE AREAS, CONSTRUCTION ACCESSES AND NO GO
AREAS TO BE DEFINED AND CONFIRMED PRIOR TO COMMENCEMENT OF WORK.
FENCE NO GO AREAS.
7.
PROVIDE MEASURES AT STOCKPILES TO DIVERT CLEAN WATER AND COLLECT
SEDIMENT DOWNSTREAM, LOCATE STOCKPILES AWAY FROM STORMWATER FLOWS.
8.
PROVIDE AND MAINTAIN PERMANENT GRASSING AS SOON AS POSSIBLE AFTER
CONSTRUCTION. STAGE WORKS AS NECESSARY. GRASS SPECIES SHALL BE TO
COUNCIL REQUIREMENTS. GRASS TURF TABLEDRAINS AND SWALES. MULCH (IF
AVAILABLE FROM SITE CLEARING) AND SEED ALL OTHER DISTURBED AREAS
INCLUDING TRENCHES, WHICH HAVE NOT BEEN TURFED. ON COMPLETION OF WORKS
PROVIDE STRIP TURFING. SEE GENERAL NOTES.
9.
CONTROL DUST BY WINDBREAKS, WATERING ETC.
10.
EROSION AND SILT PROTECTION MEASURES ARE TO BE MAINTAINED AT ALL TIMES.
ADJUST TO SUIT STAGING AND PROGRESS.
11.
HIGH EROSION AREAS, INCLUDING BATTERS TO BE STABILISED WITHIN 7 DAYS OF
COMPLETING OF WORKS AND EARLIER IF DIRECTED BY SUPERINTENDENT.
12.
CONSTRUCT THE BASIN PRIOR TO ANY SITE WORKS INCLUDING CLEARING AND SOIL
DISTURBANCE FOR USE AS A SEDIMENT BASIN DURING CONSTRUCTION.
13.
NO DISTURBED AREAS SHALL REMAIN DENUDED FOR A PERIOD LONGER THAN 20
DAYS.
EROSION AND SEDIMENT CONTROL NOTES
EROSION AND SEDIMENT CONTROL NOTES
22.
PRIOR TO THE CONTROLLED DISCHARGE (E.G. - WATERING ACTIVITIES FROM
EXCAVATIONS AND SEDIMENT BASINS) OF ANY WATER FROM THE SITE DURING
CONSTRUCTION. THE FOLLOWING WATER QUALITY OBJECTIVES MUST BE
ACHIEVED:
TSS - MAXIMUM 50mg/L
TURBIDITY MAXIMUM 50NTU
pH BETWEEN 6 AND 8
< 80% AND > 20% SATURATED DISSOLVED OXYGEN
HAVE NO VISIBLE LITTLE OR WASTE MATTER
NO ODOUR OR VISIBLY PETRO CHEMICAL SHEEN
23.
IF THE CONCENTRATION OF TSS IS HIGHER THAN 50mg/L AFTER 5 DAYS, THE
CONTRACTOR WILL REQUIRE THE USE OF FLOCCULANTS TO ACHIEVE THE TSS
CRITERIA. DOSAGE RATES FOR FLOCCULATION WILL BE DETERMINED ON SITE.
24.
PRIOR TO ANY FORECAST WEATHER EVENT LIKELY TO RESULT IN SEDIMENT LADEN
RUNOFF ON THE SITE. ANY EXISTING DETENTION BASINS/ TRAPS SHALL BE
DE-WATERED TO PROVIDE SUFFICIENT CAPACITY TO CAPTURE SEDIMENT LADEN
WATER FROM SITE PRIOR TO THE WEATHER EVENT.
25.
ANY SEDIMENT LADEN WATER CAPTURED ONSITE MUST BE TREATED TO ENSURE IT
WILL ACHIEVE COUNCIL'S WATER QUALITY OBJECTIVES SPECIFIED IN THESE
CONDITIONS. PRIOR TO ITS RELEASE FROM SITE. A SAMPLE OF THE RELEASED
TREATED WATER MUST BE KEPT ONSITE IN A CLEAR CONTAINER WITH SAMPLE
DATE RECORDED ON IT.
26.
NO ALUMINUM BASED FLOCCULATING/COAGULANTS MAY BE USED ONSITE WITH
THE PRIOR WRITTEN PERMISSION FROM AN APPROPRIATE COUNCIL OFFICER. THE
APPLICANT MUST HAVE A DEMONSTRATED ABILITY TO USE SUCH PRODUCTS
CORRECTLY AND WITHOUT ENVIRONMENTAL HARM PRIOR TO ANY APPROVAL.
27.
THE CHEMICAL/ AGENT (FLOCCULATING/ COAGULANTS) USED IN TYPE D AND TYPE F
BASINS TO TREAT TURBID WATER CAPTURED IN THE BASIN MUST BE APPLIED IN
CONCENTRATIONS SUFFICIENT TO ACHIEVE COUNCIL'S WATER QUALITY
OBJECTIVES. SPECIFIED IN THESE CONDITIONS WITHIN THE 5-DAY RAINFALL DEPTH
USED TO CALCULATE THE CAPACITY OF THE BASIN, AFTER A RAINFALL EVENT.
28.
ALL MANUFACTURES INSTRUCTIONS MUST BE FOLLOWED FOR THE USE OF ANY
CHEMICALS/ AGENTS ONSITE. EXCEPT WHERE APPROVED BY THE RESPONSIBLE
PERSON OR AN APPROPRIATE COUNCIL OFFICER.
29.
SUFFICIENT QUANTITIES OF CHEMICALS/ AGENTS TO TREAT TURBID WATER
(FLOCCULATING/ COAGULANTS) MUST BE PLACED SUCH THAT WATER ENTERING
THE BASIN/ SEDIMENT TRAP MIXES THE CHEMICAL/ AGENTS AND IS CARRIED INTO
THE BASIN/ TRAP.
37.
WRITTEN RECORDS MUST BE KEPT ONSITE OF ESC MONITORING AND MAINTENANCE
ACTIVITIES CONDUCTED DURING THE CONSTRUCTION AND MAINTENANCE PERIODS,
AND BE AVAILABLE TO THE PCA ON REQUEST.
38.
ALL SITE MONITORING DATA INCLUDING RAINFALL RECORDS, DATES OF WATER
QUALITY TESTING, TESTING RESULTS AND RECORDS OF CONTROLLED WATER
RELEASES FROM THE SITE. MUST BE KEPT IN AN ON-SITE REGISTER. THE REGISTER IS
TO BE MAINTAINED UP TO DATE FOR THE DURATION OF THE APPROVED WORKS AND
BE AVAILABLE ON-SITE FOR INSPECTION BY COUNCIL OFFICERS ON REQUEST.
