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Erosion and Sediment Control Plan | January 2012 1

Erosion and Sediment Control Plan

Proposed Commercial Plant Nursery Lot 1 SP123456, SIDE ROAD, GARBUTT

NLV Consulting Pty Ltd January 2012 Authored by: Nadine Venturato


Erosion and Sediment Control Plan

Proposed Commercial Plant Nursery

Lot 1 SP123456, SIDE ROAD, GARBUTT

Introduction This Erosion and Sediment Control Plan (the Plan) has been prepared to provide a set of Best Practice

site management procedures to control the severity and extent of soil erosion for a Commercial Plant

Nursery proposed on Lot 1 SP123456, Side Road, Garbutt.

Intent

The purpose of this Plan is to minimise soil and erosion and the discharge of sediment to land and

waterways as a result of the commercial development. It is designed to restrict pollutant transport during

the earthworks and construction phase, as well as the operational phase of the project.

The plan will meet this objective by ensuring that best practice environmental management measures are

incorporated into all stages of the operations of the development.

Scope

The Plan applies to all construction operations that disturb material or have the potential to result in

environmental harm as a result of the migration of materials from its original location.

General Conditions applying to the development site

1. Domestic water is not to be used for plant production.

2. Pollutants generated from hardstand areas of the Upper Catchment must drain to a suitably sized

gross pollutant trap (GPT) prior to release to kerb and channel on either Main Road or Side

Road.

3. Finished slopes on the Upper and Lower Catchments of the development site must have a

minimum fall of 0.01%.

4. No water is allowed to pool on site, with the exception of use of sediment basins, bioretention

basins, or similar structures to prevent the loss of sediments and nutrients from the site. This

does not preclude the use of a pond to grow aquatic plants.

5. Pollutants generated from the Lower Catchment must pass through a suitably sized bioretention

basin before entering the receiving waters of the Bohle River. Excess water from the lower level

of the site will be treated to achieve the requirements of Councils stormwater quality guidelines.

The Bioretention basin is to be no less than 2% of the Lower Catchment, as per Council’s Water

Sensitive Urban Design Guidelines for the Coastal Dry Tropics.

6. The slope separating the Upper and Lower Catchments will need to be suitably rehabilitated to

provide bank stabilisation, noise attenuation, and visual screening.

7. A construction and maintenance plan is to be included for each erosion, drainage, or sediment

control measures adopted for the site.

8. The erosion and sediment control plan shall consider the methods of stabilising the structures

used to conduct the discharge water from the site, and the incorporation of temporary and

permanent controls into site management.


Site Conditions

Nature of the site

The site of approximately 2.5 ha is bounded on the southeast by Main Road which is the major road

access through the suburb. It is bounded on the south-western side by Side Road and on the east

and west by existing industrial enterprises. In the north, the site drops down to a drainage reserve

adjacent to the Bohle River (Figure 1, Error! Reference source not found.). The south-eastern part of

the site, the “Upper catchment” with local relief of about 1.3 ha, lies between elevations 7.0 – 8.5 m

AHD and has a gentle slope towards Main Road. At the northern end, the Upper Catchment slopes

steeply down to a “Lower Catchment” of about 1 ha that lies between elevations of 4.0 and 6.5 AHD

(Error! Reference source not found.).

The whole site is underlain by clay-rich alluvial sediments of the Bohle River. The upper level of the

site lies on high river terrace that has not been flooded since European settlement in the region. The

lower level (R.L below 6.0m) lies on the actively accreting floodplain of the Bohle River and can be

expected to be flooded by a 1 in 5 year rainfall event. Land lying below R.L. 2.5 m is inundated by

normal 4.1 m high tides.

Soils of the development site

Soils of the Upper Catchment

The soils of the Upper Catchment are typical sodic duplex soils of the Older Alluvium of the

Townsville Coastal Plain (Murtha & Hopley, 1975). Dark greyish brown topsoils of silty loam texture

pass at depths as shallow as 0.1 – 0.3 m into mottled, dark greyish brown and yellowish brown

subsoils of medium-heavy clay texture and low permeability; the heavy subsoil textures are

maintained to depths of 3-4 m and lime nodules are commonly found in the subsoils below depths of

0.6 – 0.9 m.

A detailed description of a typical soil profile from the Upper Catchment, borehole LC2 is given in

Table 1, the intersection of a water table at 4.1 m depth prevented deeper description of the soil. The

main chemical properties of the soil are set out in Table 2 in which soil test results that lie outside the

desirable range of soil properties for amenity horticulture are highlighted.

Soils of the Lower Catchment

The soils of the Lower Catchment are poorly drained, grey cracking clays. The surfaces of these soils

crack dramatically on drying and were observed in profile VRP1 to extend to a depth of 60 cm below

which the soil was moist and non-cracking (Table 4). Soil profile VRP1 is typical of those found on

the Lower Catchment. Predominantly grey colours in soil mottles and the occurrence of iron and

manganese nodules in the subsoils indicate extremely poor internal drainage within the soil profile.

The soils of the Lower Catchment are both saline and sodic.

Acid Sulphate Soils

Despite the low altitude of the site and an increase in soil acidity down soil profile VRP1 (Table 4),

preliminary studies found no significant change in field pH of oxidised soil samples collected down to

depths of 2.3 m at the north eastern (downslope) end of the lower level of the site. This indicates that

there were no actual or potential acid sulphate soils underlying the site at a depth of 1 m more than

the base of any planned excavation, as is required by the Queensland Government’s acid sulphate

soil assessment guidelines for lands below 5 m AHD.


Weeds

Weed survey identified a thick ground cover in the upper catchment of mixed grass species. These

were predominately guinea grass, Megathyrsus maximus and wire grasses, Sporobolus spp. The

lower catchment contained a similar thick ground cover to the upper catchment.

Guinea grass is an undesirable weed of up to 1.5m tall, and is not a declared plant under the Land

Protection (Pest and Stock Route Management) Act 2002. It is spread by machinery and vehicles,

livestock and animals. It is an invader of disturbed degraded soils. The grass out competes native

grasses and is undesirable on the proposed development site. Methods of control include chemical

control, mechanical removal or removal of contaminated topsoil. Further information can be found at

www.deedi.qld.gov.au.

Weedy Sporobolus grasses are robust, tufted, perennial grasses growing up to 2 m tall. They are

difficult to distinguish from other pasture grasses before maturity. However, the leaves are noticeably

tougher than any other species. They can also be difficult to identify from the other native

Sporobolus grasses. Native Sporobolus grasses tend to be shorter, softer and have less dense seed

heads than giant rat’s tail grass. Five (5) introduced Sporobolus spp are declared as a Class 2 weed

species in the State of Queensland and require the landowner to treat the species. It is an offence for

the owner of the property to remove reproductive plant material from the property without a valid

permit. Sporobolus spp. favours poor degraded soil conditions and overgrazing. Seeds are very

small and each plant has the ability to reproduce over 85000 seeds each reproductive cycle season.

These seeds are easily dispersed by earthmoving and slashing machinery, livestock and fast flowing

overland flow water, introduced and native species and vehicles.

Due to the presence Sporobolus spp on site, all machinery entering and existing the site must have a

Weed Declaration and follow weed wash down procedures as identified in Appendix H. A weed

wash down facility will be developed for the site. All imported materials require a weed declaration

form to be completed. No materials containing Class 1 or 2 declared weed material will be accepted

on the site.

Nature of the Climate

The Townsville area has a tropical climate with two distinct seasons; one wet, the other dry.

According to the Bureau of Meteorology the average annual rainfall is 1143 mm through an average

91 rain days, most of which falls in the six-month “wet season” November to April period. Due to the

“hit or miss” nature of tropical lows and thunderstorms, there is a considerable variation from year to

year. Earthwork and soil exposure should be avoided during the wet season, where possible.

Performance Criteria Water discharged from the site is to comply with Environmental Protection Water Policy 2009 to

ensure that no detrimental impacts on water quality and the environment occur during the

construction phase.

The quality of discharge from the site to satisfy the following Water Quality Objectives (WQOs):

Release Criteria:

• An increase in suspended solids within surface waters contained in Bohle River – upstream of

site to downstream of site – of less than 10%.

• Water pH released from a controlled sediment basin outflow must be within the range 6.5 to

8.5.


• Suspended Solids released from controlled sediment basin outflows must be no greater than

250mg/L (Recommendation for Townsville Soils as 50mg/l is not achievable and background

water samples generally in excess of 50mg/l).

• Oils and Grease – no visible films or odour.

• Litter – no visible litter washed or blown from the site.

Responsibility The responsible person on the site is the site owner of the property. They have:

• Overall responsibility for the on-site implementation of the erosion and sediment control plan;

• Receives advice from, and gives directions to the Site Foreman;

• Identifies risks and hazards associated with the erosion and sediment control program;

• Initiates action to upgrade on-site erosion and sediment control works, where required;

• Responsibility for expenditure on site works, especially Contingency Funds set aside for

emergency repairs and urgent upgrades of control works, as needed;

• Provides advice to the ‘Qualified Professional’ for use in regular Monthly Reports and a

Completion Report to Townsville City Council.

• Has overall responsibility for the on-site implementation of this erosion and sediment control

plan.

The Site Foreman will be responsible for overseeing all site works. They are:

• Responsible for best management practices at the site;

• Ensure the effective operation of all erosion and sediment control structures, especially when

wet weather is forecast;

• Reports to the ‘Responsible Person’ on potential erosion risk and active erosion hazards at

the site;

• Must hold a Certificate of Attainment in erosion and sediment control works (a 2-day industry

course).

Prior to the commencement of any work on site, all operators and site workers will receive a site

induction on the erosion and sediment control plan.

Erosion and Sediment Control Plan The permanent and temporary SESC measures required during the construction of the development

and beyond are shown in the plans contained in Appendix B. The construction will be done in two

stages, for each catchment area, a plan has been drawn showing the required measures for each

stage. The details and Standard Drawings for each SESC measure used can be found in Appendix

C.

Erosion Control

Soil and stockpile management

• Topsoils are stripped from the site to a depth of 100 mm.

• Due to weed infestation of the top layer, topsoil will be buried to a depth greater than 300 mm or

removed from the site

• Topsoil will be imported to the site for respreading on areas to be turfed, revegetated or

landscaped.

• Stockpile heaps will be from 1-2 metres in height for topsoil.


• A sediment fence will be placed down slope of any stockpiles 2 metres from the toe of the

stockpile.

Dust suppression

• Site generation dust problems will be controlled by a water truck during the construction period.

Compost Blankets

• Compost blanket mix will be applied to the lower catchment as shown on sheet 4 of 5 once topsoil

has been removed. Drip irrigation will be installed prior to installation of compost blanket. Seed

mix will be a mix of cover crop (sterile species), native grasses, shrubs and trees native to the

area.

Establishment of grass areas

• On completion of major earthworks and establishment of hard areas (driveways, building locations

etc), topsoil will be spread over areas marked as being turfed. The areas will be marked as no go

zones and turf will be laid. All areas of turf will be irrigated with permanent irrigation. All irrigation

water will be sourced from onsite bore and water tanks.

• Where a delay of greater than one (1) weeks will occur, then seedless hydromulch will be applied

to the area to provide a temporary cover.

Drainage control

Catch Drains and perimeter banks.

• Catch drains will be installed around the perimeter of the site to contain water on-site as shown on

the plans.

• Retaining walls will be used as perimeter banks in some areas with water then flowing to catch

drains.

• Catch drains will also be placed at the toe of the landscape mounds being installed along the

property boundary on Main Road and Side Road. These areas will drain to a sediment basin,

unless they are clean water diversion drains, which will drain as per plans.

• Catch drains will be lined with turf reinforcement mats (assumed flow velocity is 2.5 m/s).

• Stabilisation of the catch drain will be a priority and will be undertaken at the start of the works.

Chute and Outlet structures

• All culverts and chute outlet structures will be protected with rock to reduce water velocity. They

will be constructed in accordance to the plans.

• All chutes will be concrete lined or pipes.

Commercial plants area/s

• Commercial plant area will be a gravel permeable area with plastic underline. The commercial

plant area will be shaped to enable water to be captured and drain from the upper catchment to

the lower catchment sediment basin.

• Irrigation water for the commercial plant area will be sourced from tank water, bore water and

water from the sediment / bioretention basin. Once earthworks and drainage works are

completed, the plastic and gravel will be placed down to stabilise the area.

Bioretention basins

• All dirty water from the site will drain through a bioretention basin prior to leaving the site, with the

exception of part of the lower catchment which will drain to catch drains prior to leaving the site.

This water should be clean water.

• The hard surface areas, including roads will drain to a bio-retention area.

• All roof water will drain to water tanks for reuse throughout the site as irrigation water.


Gross Pollutant Trap

A CDS Unit Gross Pollutant Trap will be installed. The proposed CDS0708 unit is proposed for the

project area with a design catchment of 2ha for the Upper Catchment. Rocla to supply design

specification for the GPT. Information is supplied in Appendix I.

Sediment Control

Construction entry/exits

• Entry and exit is limited on the site, with a shaker ramp equal to 1.5 lengths of the maximum

vehicle tyre circumference on site. The entry exit will become the permanent customer entry / exit

to the site and the shaker ramp will be removed and replaced with a culvert, once the main site

entrance has been established and finalised.

• In addition to the shaker ramps, each point will be stabilised with 75mm crushed rock.

Sediment trap

• A sediment basin will be constructed on the eastern corner of the site and all top catchment site

water (excluding clean water and commercial plant sales area water) will be directed to this

location using catch drains.

• The basin will be a Type D (wet basin).

• Water will need to be flocculated before release to Main Road curb and guttering.

• Due to dispersive nature of soils, spillway will be made from imported non-dispersive soil and

stabilised with concrete spillway.

• The top catchment sediment basin will be converted to a bio-retention basin upon completion of

site stabilisation.

• An additional bioretention basin will be constructed at the end of the customer entrance and along

the edge of the internal roads.

• A sediment basin will be constructed on the lower catchment in the natural depression. Water

from the commercial display area and water from the lower catchment exposed areas will be

directed to this basin.

• This basin will be a Type D (wet basin).

• Water will be flocculated before release to the gully which flows into the Bohle River system.

• Due to the dispersive nature of the soils, spill way will be stabilised with a concrete spillway and

rock protection.

• The basin will be converted into a bio-retention basin upon completion of the stabilisation works

on site.

Construction, Maintenance and Reporting Strategy

Installation Sequence, Witness, Hold and End Points

Stage 1 – Soil amelioration and major earthworks

Commence during the Townsville Region dry season, starting May.

1. Install temporary sediment controls, including catch drains, stabilised access point, stockpile pad,

site office, weed wash down site and sediment basin in the upper catchment, as shown in SESC-

SK2.

Lower Catchment

1. Install temporary sediment controls in the lower catchment.

2. Install retaining walls between the lower and upper catchment, including the access road between

the lower and upper catchments.


3. Establish sediment basin in the lower catchment area, install lower retaining walls.

4. Remove all topsoil from the lower catchment area and use material to backfill area for lower area

as shown on Sheet 2 and 3 of SESC-SK2. Area will be covered with impermeable cover and to

prevent weed growth.

5. Stockpile any excess material for off-site disposal. (weed declaration form required).

6. Install permanent drainage requirements.

7. Apply gypsum to exposed subsoils of the lower catchment at a rate of 12.7 t/ha.

8. Install irrigation area in preparation for compost blanket. Irrigation water supply will be obtained

from sediment basin and substituted from water bore located on upper catchment in dry periods.

9. Apply compost blanket (CBT) to areas identified on sheet 3 of SESC-SK2, in accordance with

design plans shown in Appendix D.

10. Additional controls will be installed on an as needs basis as identified by the site foreman and

responsible person.

Upper Catchment

1. Establish landscape mounds along Side Road and Main Road, including removal of topsoil for

work area and burial where possible or removal from the site.

2. Install mounds along front of Upper Catchment using imported topsoil. Undertake tests of

imported topsoil to check if meets desired growing parameters. If not soil is to be treated

accordingly.

3. Install catch drains and required temporary controls not already established.

4. Remove all remaining topsoil from the site and undertake major earthworks to establish desired

contours. Topsoil can be buried in areas where hardstand areas will be established, or disposed

of from the site.

5. Apply gypsum at a rate of 13.2 t/ha to all soils in the upper catchment.

6. Install all proposed hardstand and drainage requirements.

7. Prepare commercial display area and install future drainage requirements for future expansion or

display area. Commercial display area drainage to drain to lower catchment bioretention basin

(currently sediment basin).

Stage 2

Lower Catchment

1. Establish bioretention basin.

2. Lay hardstand area as required for lower catchment and permanent access to bioretention basin.

3. Build required structures.

4. Monitor establishment of lower catchment area, undertake weed maintenance and water

requirements. Repair as required.

5. Establish lower catchment buildings.

Upper Catchment

1. Undertake landscaping of landscape mounds and install irrigation, plant with desired plants and

mulch.

2. Establish all remaining hardstand areas, construct general purpose shed, toilets, water tanks and

concrete storage bins for bulk potting mix supplies.

3. Import topsoil to all areas requiring turf.

4. Install irrigation to proposed turf areas (bore water)

5. Establish turf area along north eastern boundary.

6. Establish bioretention drains along the access road.

7. Establish car park (stockpile site) and sales office (move site office to shed)

8. Import remaining topsoil and lay turf as shown on plans.

9. Install remaining bioretention basins and establish.


10. Remove all temporary controls from the site and monitor.

General Details

Clean up of general site litter on a weekly basis, prior to anticipated heavy rainfall and after significant

rainfall events >25 mm / 24 hours).

Landscaping activities and revegetation to occur as soon as practical after completion of earthworks

and construction activities within the immediate area and must achieve a minimum of 70% coverage

of all erodible surfaces.

Only appropriate herbicides and fertilisers to be used.

The storage and handling of flammable and combustible liquids is managed in accordance with

AS1940-1993.

Dust Suppression

The control of dust will primarily be achieved through the use of water carts. However any area

expected to be untouched for a period of fourteen days or more will be vegetated with quick growing

sterile millet or similar plantings.

Inspection Test Plan

An inspection test plan will be used to monitor the installation of each ESC structure. The Site

Foreman will complete the plan. The plan can be found in Appendix E.

Monitoring Erosion and sediment control (ESC) measures to be inspected daily by the site manager (or

nominated representative) during periods of runoff-producing rainfall, and de-silted, repaired and

amended as appropriate to maintain the WQOs. The monitoring checklist can be found in Appendix F.

1) Daily site inspections, during periods of runoff-producing rainfall must include:

• all drainage, erosion and sediment control measures;

• occurrences of excessive sediment deposition (whether on-site or off-site);

• all site discharge points.

2) Weekly site inspections must include:



• occurrences of construction materials, litter or sediment placed, deposited, washed or blown

from the site, including deposition by vehicular movements;

• litter and waste receptors;

• oil, fuel and chemical storage facilities.

3) Site inspections immediately prior to anticipated runoff-producing rainfall must include:


• all temporary (e.g. over-night) flow diversion and drainage works.

4) Site inspections immediately following runoff-producing rainfall must include:

• treatment and de-watering requirements of sediment basins;

• sediment deposition within sediment basins and the need for its removal;



• occurrences of construction materials, litter or sediment placed, deposited, washed or blown

from the site, including deposition by vehicular movements;


• occurrences of excessive erosion, sedimentation, or mud generation around the site office, car

park and material storage areas.

5) In addition to the above, monthly site inspections must include:

• surface coverage of finished surfaces (both area and percentage cover);

• health of recently established vegetation;

• proposed staging of future site clearing, earthworks and site/soil stabilisation.

Water quality monitoring must be carried out on any controlled discharge of water from a sediment

basin, including water pH and suspended solids.

Water quality monitoring at the nominated monitoring stations must be carried out monthly and

following significant rainfall (>25mm in 72hrs).

The parameters to be tested for waters collected at monitoring stations must include: temperature,

dissolved oxygen, pH, specific conductance, salinity, turbidity, suspended solids, and litter.

Note that additional water quality monitoring maybe required if the WQOs are not being met.

Auditing ESCP reviews are to be carried out on a monthly basis to assess the implementation strategy. A

checklist is to be completed which assesses the strategies listed above. Refer to Appendix F.

Identification of Incident or Failure Non-compliance with agreed performance criteria will be identified by:

1) Visual inspections identifying:

• build-up of sediment off the site;

• excessive sediment build-up on the site;

• excessive erosion on the site;

• release of construction material from the site;

• poor vegetation establishment;

• poorly maintained, damaged or failed ESC devices.

2) Deteriorated water quality identified by the Environmental Consultant as being attributable to the

construction activities.

Corrective Action After any identification of incident or failure, the source/cause is to be immediately located and the

following measures implemented:

• Build-up of sediment off the site – the material must be collected and disposed of in a manner

that will not cause ongoing environmental nuisance or harm; then on-site ESC measures

amended, where appropriate, to reduce the risk of further sedimentation.

• Excessive sediment build-up on the site – collect and dispose of material, then amend up-

slope drainage and/or erosion control measures as appropriate to reduce further occurrence.

• Severe or excessive rill erosion – investigate cause, control up-slope water movement, re-

profile surface, cover dispersive soils with a minimum 100mm layer of non-dispersive soil, and

stabilise with erosion control blankets and vegetation as necessary.

• Off-stream erosion – fill rills, vegetate and install velocity control measures.

• In-stream erosion – consult appropriate hydraulic/waterway consultant for advice.


• Release of construction material from the site – collected and disposed of in a manner that will

not cause ongoing environmental nuisance or harm; then inspect litter and waste receptors.

• Poor vegetation growth or soil coverage – plant new vegetation and/or mulch as required.

Newly planted and previously planted areas may require supplementary watering and

replanting.

• Sediment fence failure – replace and monitor more frequently. Regular failures may mean that

the sediment fence location, alignment or installation may need to be amended.

• If the release of excessive sediment and/or other materials off the site occurs, or water quality

monitoring indicates levels are not within the WQOs, clean up deposition, and inspect all

control measures.

• If the release of excessive sediment and/or other materials off the site is identified during two

consecutive site inspections, or water quality monitoring indicates levels not within the WQOs

on two consecutive monthly tests, then review and revise the ESCP, or otherwise reduce the

rate, extent and/or duration of soil exposure.

• If monitored levels within any sediment basin does not conform to the release criteria for:

• suspended solids – flocculate and retest;

• pH – add acid if pH is too high, or add hydrated lime if pH is too low, and retest.

Reporting Reports will be submitted monthly during the construction at each stage. The reporting will include:

• Construction Contractor site manager’s report; and

• Environmental Consultant’s water quality monitoring report.

Reporting will conform to Townsville City Council standards and identify performance of the

implementation strategy, monitoring, identification of incidents and failure, and necessary/adopted

corrective action. Reports will be submitted to the owner (or their appointed representative) monthly

for submission to the Townsville City Council.

Signed Statement

I have reviewed the attached Soil Erosion and Sediment Control Plan. I certify that it adequately meets the above key requirements (with stated qualifications, where appropriate). Name: Nadine L Venturato

Signed: NLVenturato TCC / CPESC Accreditation No.: 123456789 Date: 31 January 2012


Bibliography

CSIRO (2012). GYPSY Discounted cash flow analysis for application of gypsum to sodic soils under

sugarcane, http://www.clw.csiro.au/products/gypsy/

IECA, (2008). Best Practice Erosion and Sediment Control, International Erosion Control Association

(Australasia), Piction NSW.

Murtha, G. G., & Hopley, D. (1975). The Quaternary deposits of Townsville coastal plain. Townsville,

Australia: Dept. of Geography, James Cook University of North Queensland.

Queensland Government, (2011), Fact Sheet – Giant rat’s tail grass and other weedy Sporobolus

species – Declared Class 2 Pest Plant, Queensland Government.

Queensland Government, (2007), Fact Sheet – Guinea grass Invasive plants and animals,

Biosecurity Queensland.

Queensland Government, (2000), Queensland checklist for Cleandown Procedures, Queensland

Weed Seed Spread Project, July 2000, Department of Natural Resources, Queensland

Government

Townsville City Council, (2011), WSUD Technical Design Guidelines for the Coastal Dry Tropics

(Townsville) – Technical Design Guidelines for Stormwater Management, Townsville City

Council, QLD.

Townsville City Council, (2011), Water Sensitive Urban Design for the Coastal Dry Tropics

(Townsville): Design Objectives for Stormwater Management, Townsville City Council, QLD.


APPENDIX A: SOIL ANALYSIS


Table 1: Main field morphological properties of soil profile LC2 from the Upper Catchment of the proposed development, Garbutt. Location of Profile LC2 is shown on Error! Reference

source not found.. Soil colour

Depth

(m)

Name

(if known)

Name and Munsell soil colour code for moist

(m) and dry (d) soil

Relative

amount

(visual %)

Size (mm) Shape Lithology

0 - 0.20 A1 Dark greyish brown (10YR 4/2 m; 10YR 7/2 d) with few, fine,

strong brown (7.5YR 5/6 m) mottles along rootlet channels

Silty loam nil 5.0 clear Massive; moist and firm; weakly rootlet penetrated.

0.20 - 0.45 B21 Strongly mottled: dark greyish brown (10YR 4/2 m) with many,

medium-fine, yellowish brown (10YR 5/6 m) mottles that

disappear gradually with depth

Medium heavy clay nil 6.0 diffuse Moist and plastic

0.45 - 0.75 B22 Dark greyish brown (10YR 4/2 m) Medium heavy clay nil 8.5 sharp Moist and plastic. Similar to the B21 horizon, but no mottles

and more alkaline.

0.75 - 2.00 B23k Brown (10YR 4/3 m) Gravelly medium

heavy clay

10% 1 - 25 mm rounded lime nodules 8.5 diffuse

2.0 - 4.1 + B24k Mottled: Light olive brown (2.5Y 5/4 m) with some medium-

fine , yellowish brown (10YR 6/3 m) and brown (10YR 4/3 m)

mottles between 2.0 and 2.5 m depth

Gravelly heavy clay 15% 5 - 15 mm rounded lime nodules 7.5 sharp Mottles and lime nodules increase in size and abundance with

depth. Watertable intersected at 4.1 m depth.

Field pH

Nature of

lower

boundary

of horizon

Comments

Soil horizon

Field texture

Coarse fraction

Table 2: Main chemical properties of soil profile LC2, Upper Catchment of the proposed development, Garbutt. Values shown in the tan coloured cells are lower and blue cells are higher than desirable values for revegetation works.

Upper

sample

limit

Lower

sample

limit

pH

(1:5 Water)

Electrical

ConductivityChloride

Organic

Carbon

Nitrate

Nitrogen

Phosphorus

(Colwell)

Sulfate

Sulfur

MCP

Cation

Exchange

Capacity

Exch.

Calcium

Exch.

Magnesium

Exch.

Potassium

Exch.

Sodium

Exch.

Calcium

Exch.

Magnesium

Exch.

Potassium

Salt-

corrected

exch.

sodium

Calcium /

Magnesium

Gypsum

requirement

(GYPSY

program)

cm cm dS/m mg/kg % mg/kg mg/kg mg/kg meq/100g meq/100g meq/100g meq/100g meq/100g % % % % Ratio t / ha

6.5 - 7.0 < 0.25 dS/m< 300 mg/kg

> 2 % mg/kg > 40 mg/kg10 - 80 mg/kg

> 4 meq/100g

>1 meq/100g

> 0.15 meq/100g

> 0.3 meq/100g

meq/100g 60 - 80 % 15 -25 % 2 - 4 % < 6 % 3 - 7 t / ha

LC2.01 0 20 5.9 0.03 14 1.0 2 5 6 5.5 2.8 2.0 0.31 0.2 51.0 36.4 5.6 4 1.4 13.2LC2.03 45 60 8.5 0.16 150 1 16.5 6.0 7.2 0.22 3.1 36.4 43.6 1.3 17 0.8 13.2LC2.05 75 90 9.2 0.26 302 1 32.8 17.0 9.1 0.23 6.5 51.8 27.7 0.7 18 1.9

LC2.08 160 200 9.2 0.74 680 1 28.8 12.0 9.1 0.30 7.4 41.7 31.6 1.0 20 1.3

LC2.10 250 300 9.2 0.65 600 1 25.5 10.0 8.2 0.31 7.0 39.2 32.2 1.2 22 1.2

Exchangeable cations (%) Calculations

Desirable value

Sample

No.

Sample depth Acidity, alkalinity, and salinity Macronutrients Exchangeable cations (meq / 100 g soil)


Table 3: Main field morphological properties of soil profile VRP1, Lower Catchment of the proposed development, Garbutt. Location of Profile VRP1 is shown on Error! Reference source not found..

Soil colour

Depth

(cm)

Name

(if

known)

Name and Munsell soil colour code for

moist (m) and dry (d) soil

Relative

amount

(visual %)

Size

(mm)Shape Lithology

0 - 30 A11 Very dark grey (10YR 3/1m) with few, fine, faint, dark

yellowish brown (5YR 4/3m) mottles

Light medium

clay

nil 6.7 clear Dry and hard, coarse subangular blocky structure. Wide (15 - 20

mm) surface cracks extend to a depth of 60 cm.

30 - 60 A12 Very dark greyish brown (10YR 3/2m) with many, fine-

medium, reddish brown (5YR 4/4m) mottles

Light medium

clay

nil 6.7 clear Similar to the above horizon but with more reddish mottles.

60 - 120 B Very dark grey (10YR 3/1m) to dark grey (2.5Y 4/1m) at

depth; few strong brown (7.5YR 4/6m) mottles along

rootlet holes.

Light clay nil 6.7 gradual Moist and plastic

120 - 180 C1 Mottled: grey (2.5Y 5/1m) with many medium - fine,

yellowish brown mottles that increase in size and

abundance with depth.

Gritty light clay 5 2 - 6 rounded iron and

manganese

6.2 gradual Moist and plastic.

180 - 280 + C2 Coarsely mottled: strong brown (7.5YR 4/6m) to yellowish

brown (10YR 6/8m) with many grey (2.5Y 5/1m) mottles.

Gritty ight clay 10 2 - 10 rounded iron and

manganese

5.8 Moist and plastic. Manganese and ironstone nodulesas above, but

more abundant and larger. Water table intersected at 2.8 m depth.

Nature of lower

boundary of horizon

Comments

Soil horizon

Field texture

Coarse fraction

(materials > 2 mm: gravel, nodules, etc)

Field pH

Table 4: Main chemical properties of soil profile VRP1, Lower Catchment of the proposed development, Garbutt. Values shown in the tan coloured cells are lower and blue cells are higher than desirable values for revegetation works.

Upper sample lim

it

Lower sample lim

it

pH (1:5

Water)

Electrical

Conductivity

Chloride

Organic Carbon

Nitrate Nitrogen

Phosphorus

(Colwell)

Sulfate Sulfur

MCP

Cation Exchange

Capacity

Exch. Calcium

Exch. Magnesium

Exch. Potassium

Exch. Sodium

Exch. Calcium

Exch. Magnesium

Exch. Potassium

Salt-corrected exch.

sodium

Calcium /

Magnesium

Gypsum

requirement (GYPSY

program)

dS/m mg/kg % mg/kg mg/kg mg/kg meq/100g Ratio t / ha

6.5 - 7.0 < 0.25 < 300 > 2 > 40 10 - 80 > 4 >1 > 0.15 > 0.3 60 - 80 15 -25 2 - 4 < 6 3 - 7

VRP 1.01 0 30 6.9 0.44 380 1.1 10 64 65 26.3 13.0 9.9 0.46 2.9 49 38 2 11 1.3 12.7VRP 1.03 60 90 6.1 0.87 580 13 29.3 13.0 12.0 0.44 3.9 44 41 2 13 1.1 12.7VRP 1.10 270 285 5.6 2.22 540 4 37.3 15.0 15.0 0.56 6.5 40 40 2 17 1.0

Sample No.

Sample depth Acidity, alkalinity, salinity Macronutrients

Desirable value:

cm percent

Exchangeable cations (meq / 100 g soil) Exchangeable cations (%) Calculations

meq/100g


APPENDIX B: ESCP DRAWINGS


Figure 1 The landscape context of the Development site, Garbutt. Site dimensions are given in Error! Reference source not found.


Figure 2: Topography superimposed over a satellite image of the site of the proposed development site at Garbutt. Contour interval is 0.25 m. Data supplied by Townsville City Council.


Drainage control techniques

Technique Code Symbol Technique Code Symbol

Catch Drain CD Chute CH

Diversion Channel

DC Flow Diversion Bank

DB

Level Spreader

LS

Outlet Structure

OS

Recessed Rock Check Dam

RRC Rock Check Dam

RCD

Sandbag Check Dam

SBC Slope Drain SD

Bridge TBC

Culvert TCC

Temporary Downpipe

TD

Ford TFC

Triangular Ditch Check

TDC

Drainage control – channel/chute lining techniques


Cellular Confinement System

CCS

Erosion Control Mat

ECM

Geosynthetic lining

GEO

Grass lining GC

Grass Pavers GP

Hard Armouring

HA

Rock lining RR

Rock Mattress

RM

Turfing T

Turf Reinforcement Mat

TRM


Instream flow control techniques


Cofferdam Dam

Floating Silt Curtain

FSC

Geo Log Log Isolation Barrier

IB

Sediment Fence Isolation Barrier

SFB

Erosion control techniques


Bonded Fibre Matrix

BFM

Cellular Confinement System

CCS

Compost Blanket

CBT

Erosion Control Blanket

ECB

Gravelling Gravel

Heavy Mulching

MH

Light Mulching

M

Poly-acrylamide

Poly

Revegetation R

Rock Mulching

MR

Soil Binders SBS

Surface Roughening

SR


Sediment control techniques


Buffer Zones BZ

Check Dam Sediment Trap

CDT

Coarse Sediment Trap

CST

Compost Berm

CB

Fibre Roll FR Filter Fence FF

Filter Sock FS Filter Tube Dam

FTD

Grass Filter Strips

GFS

Modular Sediment Trap

MST

Mulch Berm MB Rock Filter Dam

RFD

Sediment Basin

SB

Sediment Fence – woven fabric

SF

Sediment Trench

SS

Sediment Weir

SW

Stiff Grass Barrier

SGB Straw Bale Barrier

SBB

U-Shaped Sediment Trap

UST


Sediment control – entry/exit control techniques


Construction Exit

Exit

Rock Pad Exit

Vibration Grid Exit

Wash Bay Exit

Sediment control – roadside kerb inlet control techniques


Gully Bag GB

On-grade Kerb Inlet Sediment Trap

OG

Sag Inlet Sediment Trap

SA

Sediment control – field (drop) inlet control techniques


Block & Aggregate Drop Inlet Protection

BA

Excavated Drop Inlet Protection

EX

Fabric Drop Inlet Protection

FD

Fabric Wrap Inlet Protection

FW

Filter Sock Drop Inlet Protection

FS

Gully Bag GB

Mesh & Aggregate Drop Inlet Protection

MA

Rock & Aggregate Drop Inlet Protection

RA


De-watering sediment control techniques


Filter Bag FB

Filter Fence FF

Filter Pond FP

Filter Tube FT

Filter Tube Dam

FTD

Grass Filter Bed

GFB

Portable Sediment Tank

PST

Settling pond SEP

Stilling Pond STP ̅ Sump Pit SP

Instream sediment control techniques


Filter Tube Barrier

FTB

Modular Sediment Barrier

MSB

Rock Filter Dam

RFD

Sediment Filter cage

SFC

Sediment Weir

SW


APPENDIX C: ESCP DETAILS


APPENDIX D: CALCULATIONS

Catch Drain Design Calculations

• Due to the nature of the site and small catchment, calculations have not been undertaken for

catch drains. The following design criteria has been adopted based on channel slopes:

1% or less

o Flat Bottom Trapezoidal drain – Either turf, concrete lined, or mixture of both

(depending on location)

o Design width = 1.8 m

o Excavated channel depth = 0.25m

o Maximum design flow depth = 0.2m

1 to 4%

o Flat Bottom Trapezoidal drain – Reinforced turf (Imported topsoil to be applied)

o Design width = 1.8 m

o Excavated channel depth = 0.25m to 0.4m

o Maximum design flow depth = 0.2m to 0.3m

Greater than 4%

o Catch drains will not be used


Sediment Basin Design Calculation’s

Top Catchment Sediment Basin Criteria

• A Type D sediment basin is required for this site.

• Expected design life of the sediment basin is 6 months, however the sediment basin will be

converted to a bio-retention basin on completion of major earthworks and landscaping of the

site.

• The basin will be discharging to the Bohle River which is considered ‘sensitive receiving

waters’. The Bohle River catchment flows into the Great Barrier Reef.

o Y% = 85%

o K1 = 23.2%

o K2 = 12.6

(Source: Table B4 – IECA, 2009)

• Townsville rainfall intensity (1yr, 120hr) – 1.92mm/hr


• Default 5-day rainfall depth = 57.1 mm (85th %)


• Catchment area is described as:

o Top Catchment

• Sub-soils of medium-heavy clay texture. A soil coefficient of 0.74 has been

adopted for construction stage.

• Topsoil will be removed from the site. Topsoil will be imported to the site which

will be a sandy loam mix.

o Bottom catchment

• Sub-soils of gray cracking clay and have a clay texture. Topsoil coefficient of

0.74 for construction stage.

• No topsoil to be imported to bottom catchment. Soil to be ameliorated and

compost blanket used.


• Sediment storage Volume for Type D = 50% of settling volume

Minimum volume of the upper settling zone is defined by:

Vs = 10 x R(y%,5-day) x Cv x A

Where:

Vs = Volume of the settling Zone (m3)

R(y%,5-day) = y%, five day rainfall depth (mm)

Cv = Volumetric runoff co-efficient

A = Effective catchment surface area connected to the basin (Ha)


Calculations:

Top Catchment Sediment Basin

Top Catchment = 1.5 Ha

Adopt a Sediment Pond Depth of 3m.

Settling Zone Height of 1.6m (minimum 600mm)

Sediment storage zone height of 1.4m

Sizing of Settlement Zone

Vs = 10 x 57.1 x 0.74 x 1.5

Vs = 633.81 m3

Sizing of Sediment Storage:

633.81 m3 / 2 = 316.9 m3

Sizing of Sediment Basin:

Total Storage Volume = 633.81 m3 + 316.9 m3 = 950.72 m3

Length to width ration = 1:3

Adopted depth = 3 m

Adopted Width = 10.5 m

Adopted Length = 31.5 m

Note: Safety is not considered an issue on this site (non-residential and away from public display

area), therefore fencing will not be installed, however vegetated screening will be applied and a safety

ladder will be installed to enable a person to exist the basin in the event that someone would fall in.


Bottom Catchment Sediment Basin

Bottom Catchment Area = 1 Ha

Adopt a Sediment Pond Depth of 1.5 m.

Settling Zone Height of 0.8 m (minimum 600mm)

Sediment storage zone height of 0.7 m

Sizing of Settlement Zone

Vs = 10 x 57.1 x 0.74 x 1

Vs = 422.54m3

Sizing of Sediment Storage:

422.54m3 / 2 = 211.27m3

Sizing of Sediment Basin:

Total Storage Volume = 422.54m3 + 211.27m3 = 633.81m3

Length to width ration = 1:3

Adopted depth = 1.5m

Adopted Width = 11m

Adopted Length = 33m

Safety is not considered an issue in the lower catchment and basin will not be fenced.

Landscaping of sediment basin / bio-retention basin areas:

A landscaping plan is being prepared by a landscape architect in accordance with Appendix A of the

WSUD Technical Design Guidelines for the Coastal Dry Tropics (Townsville).


APPENDIX E: INSPECTION TEST PLAN


Table 5: Inspection Test Plan (ITP) for Construction of ESCP

Construction Activity

Description Installation Removal Hold Point (yes / no)

Date Hold/Witness Point Signature

Planning / Development Approval

Approval of Environmental Management Plan including ITPs for the SESCP (#1)

Prior to commencing works on site.

N/A Yes

All stages Site specific Environmental induction of all workers

Prior to worker commencing on site

N/A No

Construction Exit SESC-SK2 Sheet 2 Start of project Upon sealing of all roadways. Yes Construction exit SESC-SK2 Sheet 2 Start of project Upon sealing of all roadways Yes Perimeter Catch Drain

SESC-SK2 Sheet 2 Start of project Permanent Yes

Sediment Fences SESC-SK2 Sheet 2 Start of project After completion of project fence catchment area stabilised.

Yes

Sediment Basin Top Catchment

SESC-SK2 Sheet 2 Start of project Convert to bio-retention basin Final stage

Yes

Sediment Basin Bottom Catchment

SESC-SK2 Sheet 2 Start of project Convert to bio-retention basin Final stage.

Yes

Construction of retaining walls

SESC-SK2 Sheet 2 Prior to major earthworks. Permanent Yes

Removal of topsoil SESC-SK2 Sheet 2 Prior to installation of retaining walls

Permanent Yes

Construction of site office

SESC-SK2 Sheet 2 After removal of topsoil from area at start of project

Temporary No

Weed Wash down bay

SESC-SK2 Sheet 2 Start of project Permanent Yes

Installation of turf SESC-SK2 Sheet 4 Within 10 days of completion of works in each area

Permanent Yes

Compost Blanket SESC-SK2 Sheet 4 Upon completion of earthworks in each area.

Permanent Yes

Landscaping – Mounds

SESC-SK2 Sheet 4 Within 5 days of completion of earth mounds

Permanent Yes

Bioretention basins SESC-SK2 Sheet 4 Upon completion of turfing and sealing of roads

Permanent Yes

Catch Drains SESC-SK2 Sheet 4 After completion of major earthworks.

Permanent Yes

Kerb Inlet Sediment Trap

Not on plan – along Side and Main Roads.

Prior to commencement of works

Temporary Yes

Gross pollutant trap

SESC-SK2 Sheet 4 Upon completion of major earthworks

Permanent Yes


APPENDIX F: MONITORING CHECKLIST


Weekly Site Inspection

Location:_________________________________________________________________________________

Inspection Officer:____________________________________________ Date: _______________________

Signature: _______________________________________

Item Consideration Assessment

1 Public roadways clear of sediment

2 Entry/exit pads clear of excess sediment deposition

3 Entry/exit shaker ramps clear of excess sediment deposition

4 The construction site is clear of litter and unconfined rubbish

5 Adequate stockpiles of emergency ESC materials exist on site

6 Site dust is being adequately controlled

7 Appropriate drainage and sediment controls have been installed prior to new areas being cleared or disturbed

8 Up-slope “clean” water is being appropriately diverted around/through the site.

9 Drainage lines are free of soil scour and sediment deposition.

10 No areas of exposed soil are in need of erosion control

11 Earth batters are free of rill erosion

12 Compost blanket is not being displaced by water erosion

13 Excess topsoil has been removed from site and is not being stored on site

14 Long-term stockpiles are protected from wind, rain and stormwater flow with appropriate drainage and erosion controls.

15 Sediment fences are operational and free from damage

16 Sediment fences are correctly installed

17 Sediment-laden stormwater is not flowing “around” sediment fences or other sediment traps.

18 All sediment traps are free of excessive sediment deposition

19 Sediment basins are function and not built up with excess sediment deposition.

20 All reasonable and practicable measures are being taken to control sediment runoff from the site.

21 Stabilised surfaces have a minimum 70% soil coverage

22 The site is adequately prepared for imminent storms

23 All soil surfaces are being appropriately prepared (ie pH, nutrients, roughness and density) prior to revegetation.

24 All gutters and inlet pits on Side and Main Road are free from sediment deposition from the site.

25 All ESC measures are in proper working order.

26 Any incidents of environmental harm have been documented and reported as required.


APPENDIX G: TCC PLAN EVALUATION

CHECKLIST


Townsville City Council

Soil Erosion and Sediment Control Plan Checklist

Project Name: Proposed Commercial Plant Nursery

Site Address: Side Road, Garbutt

Name of the ‘Qualified Professional submitting this form: Nadine L Venturato

Address: 123 Main Road, Townsville

Phone: 07 4712 3456

TCC ESC Accreditation No.: 123456789

Responsible Person:

Phone: 02 3456 7890

TCC ESC Accreditation no.: 987654321

Train Site Foreman:

Phone: 01 2345 6789

TCC ESC Accreditation no.: 456789012

Item Qualification

(where appropriate)

General items required:

1. A summary statement is provided of the scope of the work to be

performed. ��

2. The plan shows project site boundaries, easement boundaries,

adjoining roadways, a scale, north direction, and a legend using

standard ESC symbols.

��

3. Existing topographic contours over the site and existing water

movement pathways are shown on a plan. ��

4. Locations of stabilised construction access points and associated

drainage and sediment controls are shown. ��

5. Locations of site office, car park(s), and stockpiles and associated

drainage and sediment controls are shown. ��

6. Proposed limits of disturbance during construction activities;

fencing or other protection provided for non-disturbance areas;

retained ground cover vegetation, trees, and grass buffer zones

specified.

��

7. Locations of areas of high erosion risk and/or critical

environmental values are shown. N/A

8. Evidence is provided that a site risk assessment has been

completed, including the time of disturbance relative to climatic,

soil, and site conditions; earthworks avoided during the wet

season; a design storm and local background water quality have

been considered in the design.

��

9. Site preparation and initial land clearing strategies are described,

including ESC controls to be installed prior to disturbance. ��

10. General soil description as identified from published soil maps

used in the soil investigation for the site. ��

11. Local soil types are provided, identifying the limitations of both

topsoils and subsoils determined through soil testing; soil test

result sheets are appended for chemical analyses of topsoil and

��


subsoil samples.

12. Evidence is provided that areas of potentially problem soils have

been considered in the design, including strategies to deal with:

steep slopes, saline soils, dispersive soils, extremely acidic or

alkaline soils, acid sulphate soils.

��

Drainage, erosion, and sediment control measures should include:

13. A unique identifying code has been assigned to each ESC

structure (to be shown on the plan and used as labels at the site) ��

14. Clean water is diverted around the site; clean and contaminated

water flowing over the site are separated; temporary and

permanent drainage and erosion controls are specified;

stormwater is diverted away from site entrances and exits; use of

hay bales is minimised / avoided.

��

15. Measures to control drainage discharge from the site have been

specified. Site plans must show that no water flowing across a

disturbed surface is allowed to leave the site without passing

through a sediment control structure or process. Sediment

basins, sediment fences, or other measures have been specified

to trap sediment on site; by-pass flows from sediment control

structures are discharged onto stable areas; access to ESC

structures is specified for sediment removal and maintenance;

flocculants are specified for dispersive soil materials trapped in

sediment basins.

��

16. Construction and drainage plans are provided for each stage of

site works, including: locations of cut and fill areas, temporary or

permanent sediment basins, modifications to site contours and

water movement pathways, and incorporation of temporary

measures into the permanent drainage layout.

��

17. Full design and construction details (e.g. minimum channel

grades, water velocities, channel linings, basin sizes) are

specified for all ESC measures, including calculation sheets for

the sizing of erosion and sediment control measures.

��

18. An Implementation Schedule is given, specifying the timeframe

and sequence of works to be carried out. The Schedule includes:

the layout and staging of proposed works to minimise the area

and duration of exposure of disturbed surfaces; the installation

and removal sequences for all ESC measures; areas requiring

temporary cover or revegetation during construction delays.

��

19. Specifications are included for temporary erosion and sediment

control measures to be adopted: dust suppression techniques to

be used during construction; measures to be installed at the end

of each working day; measures to be used in case of impending

storms or emergency situations; temporary stabilising measures

(mulching, revegetation, or other) for disturbed surfaces if work is

delayed on those surfaces for more than 14 days.

��

Site revegetation, rehabilitation, maintenance, and monitoring requirements: 20. A Progressive Site Revegetation and Rehabilitation Plan is

included, listing methods for: the selective handling of topsoil;

topsoil depth and treatments; subsoil management; selection of

grass, legume, or other plant varieties; planting methods; rates

given for seeding, fertiliser, irrigation, mulch, and other planting

strategies to be used.

��

21. A Site Maintenance Plan is included listing performance standards

for temporary and permanent ESC structures and the ��


maintenance of vegetation covers (e.g. irrigation, weeding,

fertilising,).

22. A Plan for Monitoring Site Condition is provided for a nominated

period after the construction phase, including: a draft ITP for

assessing the erosional status of all disturbed lands; the condition

of drainage, erosion, and sediment control structures; the

discharge water quality, including locations of monitoring stations;

measures of revegetation success.

��

Operational issues should specify:

23. Statements of Intent are included for key operations ��

24. Contact details are given at the top of this form for a 'Qualified

Professional', a 'Responsible Person', and a 'Site Manager' who

will jointly implement the ESC Plan; responsibilities defined for

changes in the ESC Plan and its implementation.

��

25. A Contingency Fund has been established to cover the cost of

emergency repairs to ESC measures. ��

26. Witness, Hold, and End Points are defined and list the personnel

involved and verification methods (photo, site inspection, A). ��

27. A checklist is provided for Weekly Site Inspections. ��

28. A mechanism has been set in place to provide Monthly Reports to

Townsville City Council by the ‘Qualified Professional’, in

consultation with the ‘Responsible Person’.

��

29. A Completion Report will be submitted to Townsville City Council

by the ‘Qualified Professional’ in consultation with the

‘Responsible Person’.

��

30. The TCC Erosion and Sediment Control Plan Checklist has been

completed before submission of the plan for Council approval. ��

31. Any other relevant information required by Townsville City Council

has been provided in order to allow a proper assessment of the

Erosion and Sediment Control Plan.

��

I have reviewed the attached Erosion and Sediment Control Plan. I certify that it meets the above key

requirements (with stated qualifications, where appropriate).

Signature: N L Venturato

Name: Nadine Venturato Date: 28/01/2012

Townsville City Council ESC accreditation number: 1232456789


APPENDIX H: WEED HYGIENE PROCEDURE

Compliance with the Land Protection (Pest and Stock Route Management) Act 2002

Class 2 plants

It is illegal to fail to provide a Weed Hygiene Declaration or other written notice before supplying a thing that

is, or could be, contaminated with the following Class 2 declared plants:

• parthenium (Parthenium hysterophorus)

• prickly acacia (Acacia nilotica)

• giant rat's tail grass (Sporobolus pyramidalis and S. natalensis)

• American rat's tail grass (Sporobolus jacquemontii)

• giant Parramatta grass (Sporobolus fertilis)

• Parramatta grass (Sporobolus africanus).

Both the supplier and receiver need to keep a copy of the written notice for five years.

Failure to supply a written notice can incur a penalty of up to $40,000.

Moving contaminated vehicles and their loads (on roads)

It is an offence to move or transport a vehicle on a road, if it is known, or ought to be known, that it or its load

is contaminated with a declared plant, unless the load is contained.

Reasonable steps must be taken to prevent weed seeds from escaping. Examples of reasonable steps

include cleaning your vehicle and covering contaminated loads. Failure to do so can incur a penalty of up to

$15,000.


Source: Queensland Government, (2000), Queensland checklist for Cleandown Procedures, Queensland

Weed Seed Spread Project, July 2000, Department of Natural Resources, Queensland Government


APPENDIX I: GROSS POLLUTANT TRAP

Gross Pollutant Trap Information Sheet

The owner proposes to install a CDS Unit Gross Pollutant Trap. The proposed CDS0708 unit is proposed for

the project area with a design catchment of 2ha for the Upper Catchment. Rocla to supply design

specification for the GPT.

erosion and sediment control plan - creek to coral plan2012.pdf · 2017. 9. 6. · erosion and...

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