Summary of major changes (Assessment of Site Contamination) Measure - PDF document

National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection Summary of major changes (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National 1. Asbestos Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2. Health risk assessment and investigation levels 3. Assessing petroleum hydrocarbon contamination 4. Ecological risk assessment and investigation levels National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection Summary of major changes (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National 1. Asbestos Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2. Health risk assessment and investigation levels 3. Assessing petroleum hydrocarbon contamination 4. Ecological risk assessment and investigation levels

National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection Assessing petroleum hydrocarbons (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Site assessment will require consideration of: Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 1. Health Screening Levels (HSLs) 2. Ecological Screening Levels (ESLs) 3. Management Limits Schedule B1 http://upload.wikimedia.org/wikipedia/commons/0/08/Ethylbenzene.PNG National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection Health Screening Levels (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National The variation proposes to adopt the HSLs developed by Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment CRC CARE Protection (Assessment of Site Contamination) Measure April Four HSL reports - • Summary • Technical HSLs apply to exposure via: development • vapour inhalation • Application • Sensitivity Analysis • direct soil contact Toolbox Soil, groundwater & soil gas: • limited by maximum solubility in soil porewater or groundwater (petroleum mixtures) or vapour pressure

National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection Health Screening Levels (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National • Johnson and Ettinger vapour intrusion model for Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment vapour transport processes CSIRO report Protection (Assessment of Site Contamination) Measure April • Australian exposure parameters (reasonable max) • Site-specific approach if conditions outside range Vapours Residual contamination Checklist - Application Accumulated product Dissolved plume report Groundwater flow Greg Davis, CSIRO Land and Water Schedules B1 and B2 and Toolbox National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection Health Screening Levels (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National • Limitations and Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April uncertainties in approach • Multiple lines of evidence – indoor air, soil gas, soil & groundwater • Vapour intrusion assessment framework � 30m screen � CSM Schedules B1 & B2 and Toolbox

National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection Health Screening Levels (HSLs) (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 • Four land-use settings note HSL B applies to National Environment Protection (Assessment of Site Contamination) Measure April 2011 National ground floor residents Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April • Representative soil texture: sand/silt/clay � Grain size and saturation porosity • Contamination source depth: soil and groundwater • Biodegradation factors x10, x100 if certain criteria are met: maximum slab size and O 2 availability (>5%) CSIRO and Application reports Schedule B1 and Toolbox National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection Health Screening Levels (HSLs) (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Protection (Assessment of Site Contamination) Measure April 2011 National • Application report Basement Crawl-space Slab Environment Protection (Assessment of Site Contamination) Measure April 2011 National Environment Indoor Air – check list Protection (Assessment of Site Contamination) Measure April – basement Vadose Zone Vapour Migration Soil Gas • Sensitivity Analysis report Contamination (residual or mobile NAPL) – soil moisture Groundwater Contamination conditions Davis 2010, adapted from USEPA 2002 – scale factors Schedule B1 and Toolbox