Response to Council's Information Request · MCU14/0077

 

 

a

Erosion and sediment control devices shall be installed and maintained in 9. The underground drainage system shall be used to convey runoff throughout

accordance with these drawings unless an alternative proposal is approved in construction. All drainage pits shall be constructed prior to placement of TASK AES | FROSION & SEDIMENT CONTROL STORMWATER QUALITY
writing by the superintendent. Additional erosion and sediment controls shall sub-base material and shall contain a suitable cut-out to capture run-off from PERFORMANCE MINIMIZE SOIL EROSION SITE DURING AVOID DETRIMENTAL IMPACT ON THE WATER QUALITY AND AQUATIC ENVIRONMENT OF DOWNSTREAM WATER
also be installed as necessary during construction. base of boxing during construction. AND AT ALL TIMES PREVENT THE TRANSPORT | AND COMPLY WITH, THE ENVIRONMENTAL ACT ON ENVIRONMENTAL PROTECTION POLICY FOR WATER.
All erosion and sedimentation control devices shall be installed prior to 10. The underground drainage system including all pits, pipes and GPT shall be ov oe
stripping topsoil or commencing earthworks anywhere else on site unless cleaned of sediment prior to on maintenance. Unless otherwise approved by STRATEGY * FOLLOW THE STABILIZATION. PROCEDURES » ALL CONTROL MEASURES. SHALL. BE IN PLACE PRIOR TO COMMENCING SITE STRIPING. oe CATER?
otherwise approved by the superintendent. An inspection hold point is the Superintendent all temporary erosion and sediment control measures . PRA THE ESTENT OF STRIPPING 10 THE . ONT Oe Ne STOCKPILES STORED ON SITE SHALL BE PLACE IN PREPARED LOCATIONS,
required at this point prior to the works proceeding. shall be removed at the completion of construction. CONSTRUCTION, * COMPOUNDS SHALL BE IMMEDIATELY ATTENDED TO SO AS TO LIMIT THE POTENTIAL FOR IMPACT
Where erosion and sediment control devices cannot be installed due to 11. However such removal shall not proceed until the site is stabilised to the * ADJACENT ROADWAY ‘SHALL BE REMOVED « PROVIDE CONTROL MEASURES TO PREVENT SOIL EROSION , SCOURING, SEDIMENT TRANSPORT AND
earthworks or other work operations, they shall be installed at the earliest Superintendent's satisfaction. «PROTECT. STORMWATER. DRAINAGE. INLETS DEPOSITION, THESE MEASURE ARE, IDENTIEED IN THE SOIL & EROSION CONTROL PLAN BUT MAY BE
possible date. 12. All construction vehicles shall be cleaned of mud and/or loose dirt prior to BEEN STABAL EO ONT: THE SITE HAS 7 TEMPORARY RETARDATION BASIN
Permanent coverage of disturbed areas with topsoil and turf, hydromulch or leaving the site. * CONCRETING SMALL BE WHOLLY «IN AREAS WHERE RUNOFE TURBIDITY IS 10 BE CONTROLLED, EXPOSED SURFACES SHALL BE MULCHED
mulch (and jute matting if required) is to be undertaken at the earliest 13. No release, or flow is permitted from the site, throughout the earthworks and SHALL BE ALLOWED 70 ORY THEN «PERMANENT CONTROL. MEASURES WILL BE IN PLACE UPON COMPLETION OF CONSTRUCTION, HOWEVER
practical time. construction period, to any waterway, or stormwater drain or drainage line REMOVED FROM SITE. BON ACHIEVED BE REQUIRED OF SOME TEMPORARY FACILITIES UNTIL FULL SITE REHABILITATION HAS
Turf shall be laid behind kerb and channel for full verge width. leading toa waterway or area of native vegetation, unless the level of total MONITORING THE PRINCIPAL CONTRACTOR SHALL AT ALL THE PRINCIPAL CONTRACTOR SHALL ENSURE NO SUSPENDED SOLIDS OR CONTAMINANTS ARE VISIBLE IN
TIMES ENSURE THAT CONTROL DEVICES ARE SURFACE RUNOFF LEAVING THE SITE.

In order to prevent erosion from concentrated flow paths, the contractor shall
follow the following site protection principles:

- Install turf in permanent open drain;

- Install geofabric in temporary open drains where shown on drawing;

- Install sand bags, rock check dams or mulch bunds at 20m centres in all
concentrated flow paths including cut-off drains along kerb and channel,
along sediment fences, mulch or earth bunds except where drains are lined

with turf or geofabric.

All disturbed areas shall be covered with 100mm of topsoil prior to turfing,
seeding, hydromulching or mulching.

All batters 1 on 4 and steeper shall be tined to a depth of 200mm in
accordance with Main Roads specifications prior to topsoiling and mulching
(75mm thick). Batters steeper than 1 on 2 shall also have heavy duty jute

SEDIMENT & EROSION CONTROL NOTES

 

matting installed over the mulch. all other disturbed areas shall be covered

with hydromulch.

LEGEND
Existing storm water

-——_——— Storm Water Drainage

 

 

agi Agi Drain

Floor Waste
8 FWG gully

aa GP1 Gully Pit

—o—_1+-—__. Sediment Fence

-—_—o Boundary

® Diameter

c.0.8. Cleanout to surface

Een Eccentric Enlarger

FFL Finished floor level

GP Gully pit

GMH Gully Man Hole

Ic Inspection Chamber

IL Invert Level

K&C Kerb & Channel

MH Manhole

PO Planter outlet

RPB Real Property Boundary
RPD Real Property description
RWO Rain water outlet

RWH Rain water head

SL Surface Level

Sq Square

SWD Storm water drain

Ta Trench grate transverse bar
TG(I) Trench grate longitudinal bar
u/g Underground

u/s Under slab

u.n.o. Unless noted otherwise

suspended solids does not exceed a concentration of 50 milligrams per litre.

14 An effective water quality self-monitoring program, including at least one
representative measurement of the total suspended solids quality of any flow
or release from the site on each day runoff to water occurs, must be ACTIONS
implemented continuously throughout the life of the works which are the
subject of this approval. Where the findings of the required performance
self-monitoring program indicate that the 50mg/L TSS compliance limit is being
or is likely to be exceeded, remedial action must be taken without delay to
ensure ongoing compliance.

15. Sufficient stockpiles of mulch and/or other similar required erosion and
sediment control materials and stores must be maintained on site at all times
to enable ongoing erosion control, as well as site contingencies e.g. imminent
wet weather, to be dealt with, until commencement of on maintenance.

 

 

 

SEDIMENT AND EROSION CONTROL MANAGEMENT PLAN:

OBJECTIVE:
To minimise erosion on site and ensure sediment is not washed down to the receiving waterways due to construction
activities

LEGISLATION:

Environment Protection Act 1994
Environmental Protection Water Policy 1997
The Integrated Planning Act 1997

RESPONSIBILITY:
The responsibility for all measures regarding the sediment and erosion control during construction shall be with the
CONTRACTOR. The contractor shall appoint one staff member, ideally the foreman to be responsible for:

“the location of drain paths such as swales and trenched, cut off swales, catch drains and perimeter banks. All of
these measures shall ensure the runoff is directed to the sedimentation basin during construction.

“the waste and wash down of materials and goods in particular concrete and cement shall be separated, set to dry
and disposed of

***installation and maintenance of the sediment control fences all around the perimeter as shown in plan

**“control of fences, sandbags and bales as well as the sedimentation basin after each rainfall event

**“control of the entry/exit path and the minimization of sediment transfer to the street in particular control of concrete
and earthmoving vehicles

***supervise other members of staff and lead by example

**“ensure enough litter collection devices are provided for the collection of daily litter such as cans, bottles, paper,
butts and also building material cut offs.

**“ensure all stockpiles for both incoming and outgoing goods in particular soils and sands are clearly marked and not
blocking drain paths and kept neat and clean.

***control the flow path of stormwater at all times during construction and use swales, sandbags, bales and other
measures to ensure the runoff is directed to the sedimentation basin at all times.

ACTIONS:
In case of major rainfall events the following action plan shall be followed and responsibly looked after by the
CONTRACTOR:

**DON'T WAIT UNITL IT IS TOO LATE!
be on site during the rainfall period and monitor the drain paths. Redirect where required.

**check the fences after every rainfall and replace the fences where required. Check and replace all barriers,
bales, sandbags and temporary swales, cut off drains and trenches where required.

*clean out sedimentation material as soon as the moisture content allows it.

**check the receiving pit and improve the barriers if required.

“REMEMBER: EACH RAINFALL IS THE EVENT TO ACTIVELY WATCH AND CONTROL THE RUNOFF!

 

 

 

 

 

 

 

 

 

CORRECTLY INSTALLED AND ADEQUATELY
MAINTAINED, IN PARTICULAR PRIOR TO
FORECAST PERIODS OF RAIN OR STORMS.

 

CORRECTIVE

e« EMPTY AND REPAIR TRAPS REGULARLY.
e REPAIR OR REPLACE DAMAGED CONTROL e REPAIR OR EXTEND CONTROL DEVICES TO OPERATE ADEQUATELY.
DEVICES. e INSTALL ADDITIONAL SEDIMENTS TRAPS TO RETARD SURFACE RUNOFF ACROSS THE WORKS AREA.
e PLACE ADDITIONAL CONTROL DEVICES
WHERE EXISTING INSTALLATIONS ARE
INADEQUATE.

 

REPORTING

 

 

WEEKLY REPORTS BY THE PRINCIPAL

CONTRACTOR TO THE CONSULTANT DETAILING WEEKLY REPORTS BY THE CONTRACTOR TO THE CONSULTANT OUTLINING THE EFFECTIVENESS OF CONTROL
MAINTENANCE PROGRAM, ADDITIONAL WORKS MEASURES AND DETAILS OF ANY CORRECTIVE ACTIONS TAKEN

AND THE PERFORMANCE OF CONTROL

MEASURES.

 

 

 

SEDIMENT & EROSION MANAGMENT PLAN

 

shall be incorporated:

 

temporary structures.

Prior to the commencment of any construction activities the following measures

Provide education of site personnel

Set up action plans as a precaution in case of disturbances occuring DISCLAIMER — ENSURE ORIGINAL SIZE DRAWING IS USED
especially after an unexpected strong rainfall event FOR ASSESSMENT, TENDERING AND CONSTRUCTION.
e Provide regular inspection and maintenance of all structures including the [Amd Description Date

 

 

 

CUT—OFF DRAIN ALONG CONTOUR — LONG TERM
STOCKPILES ONLY (GRADE AT 1 IN 100 max. TO FREE
OUTLET.) STABILIZE ALL EARTHWORKS AREAS WITH TURF.

 

NOTES FOR STOCKPILING:

PRIOR TO CONSTRUCTION THE CONTRACTOR SHALL PROVIDE A
PLAN FOR STOCKPILING, MATERIALS STORAGE AND WASTE
MANAGEMENT. THIS PLAN MAY BE A HAND DRAWN SKETCH BUT

 

 

 

SHALL BE VISIBLEY PLACED IN THE SITE OFFICE. Issue Notes Date
ADVICE: For Development Approval X 21-05-14
. LOCATE STOCK PILES ON LEVEL GROUND AWAY at -~05—
FROM AREAS SUBJECT TO CONCENTRATED For Building Approval x 21-05— 14
OVERLAND FLOW. For Tender
. CONSTRUCT A PERMENENT BANK OR CATCH DRAIN For Construction
ABOVE STOCK PILE TO PROTECT IT FROM UPHILL
RUNOFF. As Constructed
. CONSTRUCT A SEDIMENT FENCE BELOW THE
STOCKPILE TO TRAP SEDIMENTS BEING WASHED
OFF THE PILE.
. PROVIDE ACCESS TO STOCKPILE FROM SIDE SO AS

TO AVOID RUNOFF PASSING THROUGH. E
Hydraulic 3:

PLASTIC SHEET WHEN RAIN OR
HIGH WINDS ARE EXPECTED. ~ . .
contact: Reinhold Koenning MiEAust RPEQ No 7023

PO Box 181

Moffat Beach, QLD, 4551

email: [email protected]

PH: (07) 5491 4333 FX: (07) 5491 4233

 

 

CLIENT :
WILSON CLARK CONSTRUCTIONS
SEDIMENT FENCE AS SPECIFIED ALONG CONTUR ARCHITECT :
(EXTEND 3m min. EACH SIDE OF STOCKPILE. \ COOL ARCHITECTURE J
(Prosect: 10/100 RE Y
STOCKPILES :  10/ NE STREET
NOOSAVILLE
1. PLACE STOCKPILES 5m min. UPSTREAM OF EXISTING VEGETATION,
CONCENTRATED WATER FLOW, ROADS, AND HAZARD AREAS.
2. CONSTRUCT ALONG THE CONTOUR AS LOW, FLAT, ELONGATED DRAWING TITLE:
MOUNDS (2m max. HEIGHT.)
\
ESC
NOTES M)
Design AnH. Checked (Ch. Date 21-05-14 Dwg. No. AMD.
SCALE : N/A ON At UNO, 6 of 6 2864-—OP6 J

 

 

 

RPD:— LOT 10 SP 230643