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Alternative Daily Cover (ADC) Investigation Report
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Transcript of Alternative Daily Cover (ADC) Investigation Report
Alternative Daily Cover (ADC)Investigation Report
Report Presentation Overview
REQUIREMENTS
FACILITY SELECTION
METHODOLOGY
FINDINGS
NEXT STEPS
CalRecycle Requirements for ADC California Code of Regulations (CCR), Title 14 and 27
Disposal Reporting System (DRS) Annual Reporting14 CCR § 18810.9
Landfill Record Keeping 27 CCR § 20510 (g)
ADC Application State Minimum Standards 27 CCR § 20690 (a)(1)
Facility SelectionHighest Ratios Reported to DRS in 2012 Top 10 Sites with Highest Total ADC to Waste Disposed Ratios
ADC to disposal ranges: 494% to 16.7%
Highest Processed Green Material ADC to Waste Ratios 8 of 15 sites used processed green material
ADC to disposal ranges: 363.9% to 4.9% Top 5 with highest ADC to waste ratio
ADC to disposal ranges > 25%
Facility Selection - Range of Percentages
Zanker Walker Azusa L and D Portrero Watsonville Rock Creek Vasco Scholl Canyon
Simi Valley Clover Flat Pebbly Beach Calabasas Pumic Valley0.00%
50.00%
100.00%
150.00%
200.00%
250.00%
300.00%
350.00%
400.00%
450.00%
500.00%
Total ADC % of Disposal
Facility Selection - List Azusa Land Reclamation Co. Landfill
Calabasas Sanitary Landfill
City of Watsonville Landfill
Clover Flat Landfill
L and D Landfill
Olinda Alpha Sanitary Landfill
Pebbly Beach (Avalon) Disposal Site
Top 5 Processed Green Material ADC to Waste Disposed Ratio
Potrero Hills Landfill
Pumice Valley Landfill
Rock Creek Landfill
Scholl Canyon Landfill
Simi Valley Landfill & Recycling Center
Vasco Road Sanitary Landfill
Walker Landfill
Zanker Material Processing Facility
Investigation Methodology - Record Review
Review of DRS Reports Selection of Sites Review of Board of Equalization Reports Reviewing Permit Documents
Solid Waste Facility Permit
Report of Disposal Site Information (RDSI)/ Joint Technical Documents (JTD)
ADC Demonstration Projects
Previous Inspection Reports
Investigation Methodology - Facility Review
Facility Inspections Landfill record review Site observation of ADC use Test hole digging
Interviewing Facility Operators Interviewing LEAs
Findings - Facility Variables Density of ADC material Types of ADC Use Frequency of ADC Use Amount of waste disposed Size and Shape of Working/Active Face Waste in Place Density
Findings 2 Facilities Likely Over Used ADC 8 Facilities Mis-reported to DRS
6 Over-reported ADC: No indications of over-use 2 Over-used could not be determined
5 Facilities had No Errors No record keeping or DRS reporting errors were found No indications of over use
Findings – Nature of Mis-reporting
Reporting ADC Accepted as ADC Used Combining ADC Material with Another Recycled Material Reporting Beneficial Reuse as ADC Reporting Intermediate Cover as ADC Including Soil as ADC Using the Incorrect Conversion Factor (tons to cubic yards) Appyling Unapproved ADC.
Next Steps Education and Outreach LEAs & Operators Training – Fall 2014 State Minimum Standards Training Development of DRS Outreach Materials
New DRS Reports and Tools on the CalRecycle Website Enhanced Focus on ADC Use and Record Keeping during CalRecycle’s future 18-month Inspections
Thanks to the Investigation Team!