Kempsey Shire CouncilKempsey Shire Council

Will Weir

Environmental Outcomes Officer

BE (Environmental) Hons

Wayne Landkroon

Facilities Management Coordinator

BE (Environmental)Hons

Kempsey Waste Receival & Kempsey Waste Receival & Disposal FacilityDisposal Facility

Site Characteristics (geology and topography)Site Characteristics (geology and topography)

Solid Waste DisposalSolid Waste Disposal

Environmental ManagementEnvironmental Management

SITE LOCATIONSITE LOCATION

SITE CHARCTERISTICSSITE CHARCTERISTICS

SITE TOPOGRAPGYSITE TOPOGRAPGY

SITE GEOLOGYSITE GEOLOGY

Residual Clays overlying Mudstone with Clay LensesKempsey Beds – Lower Permian Aged

Residual Silty Clays exhibit MEDIUM to HIGH PLASTICITY and VERY LOW PERMEABILITY = 5x10-11 ms-1

NSW EPA criteria for landfill cell liners = 1x10-9 ms-1

SITE HYDROGEOLOGYSITE HYDROGEOLOGY

• Groundwater ranges between 12-17mBGS across siteGroundwater ranges between 12-17mBGS across site

• Confined AquiferConfined Aquifer

• Artesian ConditionsArtesian Conditions

SITE LAYOUTSITE LAYOUT

SOLID WASTESOLID WASTE DISPOSALDISPOSAL(NSW EPA License No. 6269)(NSW EPA License No. 6269)

What waste can be accepted at KWR&DF?

 INERT WASTEINERT WASTE

•Virgin Excavated Natural Material (VENM) – EPA ApprovedVirgin Excavated Natural Material (VENM) – EPA Approved

•Building and Demolition WasteBuilding and Demolition Waste

•Asphalt WasteAsphalt Waste

•BiosolidsBiosolids

•Used TyresUsed Tyres

•Office and Packaging WasteOffice and Packaging Waste

What waste can be accepted at KWR&DF?

 SOLID WASTESOLID WASTE•Municipal Waste Municipal Waste

•Biosolids (restricted), Manure and Night Soil Biosolids (restricted), Manure and Night Soil

•Lead Contaminated WasteLead Contaminated Waste

•Cleaned Pesticide, Biocide, Herbicide or Fungicide ContainersCleaned Pesticide, Biocide, Herbicide or Fungicide Containers

•Mechanical Workshop MaterialsMechanical Workshop Materials

•Disposable Nappies, Incontinence Pads and Sanitary Napkins Disposable Nappies, Incontinence Pads and Sanitary Napkins

•Food Waste Food Waste

•Vegetative Waste from Agriculture or Horticulture Vegetative Waste from Agriculture or Horticulture

•Non-Chemical Waste from Manufacturing and ServicesNon-Chemical Waste from Manufacturing and Services

•Soil Soil

What waste CANNOT be accepted at KWR&DF?  

HAZARDOUSHAZARDOUS•Dangerous GoodsDangerous Goods

•Pharmaceuticals and PoisonsPharmaceuticals and Poisons

•Clinical WastesClinical Wastes

•Cytotoxic WasteCytotoxic Waste

•Sharps WasteSharps Waste

•Radioactive WasteRadioactive Waste

•Declared Chemical Waste – EPA Declared Chemical Waste – EPA LISTLIST

•Quarantine MaterialQuarantine Material

LIQUID WASTE LIQUID WASTE

WASTE RECEIVAL TRACKINGWASTE RECEIVAL TRACKING

LANDFILL CELL WITH DAILY COVERLANDFILL CELL WITH DAILY COVER

USED LEAD/ACID BATTERRIESUSED LEAD/ACID BATTERRIES

USED TYRESUSED TYRES

FERROUS WASTEFERROUS WASTE

TIMBERTIMBER

WASTE RECOVERY(Resource NSW Strategy)

Other Wastes Recovered:Other Wastes Recovered:

Green WasteGreen WasteBiosolidsBiosolidsResale ItemsResale ItemsFarm Chemical Containers (Drum Muster)Farm Chemical Containers (Drum Muster)Regional Recycling Pickup CentresRegional Recycling Pickup Centres

•Site Water ManagementSite Water Management

•Landfill Gas – MethaneLandfill Gas – Methane

•Dust and Wind Blown RubbishDust and Wind Blown Rubbish

ENVIRONMENTAL MANAGEMENTENVIRONMENTAL MANAGEMENT

SURFACESURFACE WATER MANAGEMENTWATER MANAGEMENT

LEACHATE MANAGEMENTLEACHATE MANAGEMENT

GROUNDWATERGROUNDWATER & &

SURFACE WATERMONITORINGSURFACE WATERMONITORING

6 Groundwater Quality Monitoring Bores6 Groundwater Quality Monitoring Bores

3 Surface Water Quality Monitoring Points3 Surface Water Quality Monitoring Points

Leachate and Effluent Quality Monitoring PointsLeachate and Effluent Quality Monitoring Points

PEIZOMETERPEIZOMETER

Sampling and AnalysisSampling and AnalysisQuarterly Sampling:Quarterly Sampling:

Alkalinity (as calcium carbonate)AmmoniaArsenicCalciumChlorideConductivity (uS/cm)FluorideIronMagnesium

ManganeseNitratePotassiumSodiumSulphateTemperatureTotal PhenolicsTotal Organic CarbonpH (6.5-8.5)

Total Suspended Solids (in surface waters, 50mg/L)

Units of measure = mg/L unless stated

LANDFILL GASLANDFILL GAS

1.25% v/v Methane

Buildings

Monitoring Bores

Surface Traverse (25m grid)

CASE STUDYCASE STUDY

NSW EPA License Requirement:NSW EPA License Requirement:• Sampling Point #7Sampling Point #7

• Effluent Quality and Volume Monitoring Effluent Quality and Volume Monitoring (Sedimentation Dam)(Sedimentation Dam)

• TSS not greater than 50mg/LTSS not greater than 50mg/L

• Required to sample Required to sample allall discharge from Dam discharge from Dam

• Exceedance are allowed during rain events of 71mm Exceedance are allowed during rain events of 71mm or greater in 5 day period.or greater in 5 day period.

February/March 2003February/March 2003

Rain Event: Rain Event:

• >200mm in 5 day period>200mm in 5 day period

• 73mm in one night73mm in one night

Pollution Reduction programPollution Reduction program

• 1 – Erosion/Sediment Control 1 – Erosion/Sediment Control

• 2 – Repair Erosion Damage2 – Repair Erosion Damage

• 3 – Stabilisation Program3 – Stabilisation Program • 4 – Pump Out/Irrigation System4 – Pump Out/Irrigation System • 5 – Site Operations5 – Site Operations

May 2003May 2003

• Rain Event: 40mmRain Event: 40mm

Capping:Capping:

________Revegetation_________________Revegetation__________________0.5m Topsoil_________________0.5m Topsoil_______________Drainage Layer______________Drainage Layer_______________Bentonite Seal_______________Bentonite Seal____________Gas Drainage Layer__________Gas Drainage Layer_____

SITE CLOSURESITE CLOSURE

QUESTIONSQUESTIONS: