Phase 2 Site Investigation Management Plan : Fire training or AFFF Areas KEY AND POTENTIAL ISSUES POTENTIAL CONTAMINANTS OF CONCERN Soil Heavy Metals (predominantly lead) ASSESSMENT CRITERIA KEY INVESTIGATION CONSIDERATIONS 1. NEPM 1999 (soil) Identify all Fire Pits or AFFF areas (above and below ground) by means of a desk study and walkover survey Fuel/oil spillage can impact soil quality Total Petroleum Hydrocarbons (TPH) 2. ANZECC 2000 (water) VOCs often not found in soil (low partitioning coefficient) but vapour identified (high vapour pressure). Contaminant transfer by direct / indirect contact Benzene, Toluene; Ethyl Benzene, Xylene (BTEX) Contaminant transfer by ingestion / inhalation Polynuclear Aromatic Hydrocarbons (PAH) Dutch Intervention or USEPA 3. EPA 1994 (hydrocarbons) VOCs often found in groundwater. Use of PID instrumentation to monitor air quality of samples criteria may be used in the Groundwater Phenols Fuel/oil spillage can impact groundwater quality Volatile Organic Compounds Contaminant transfer by direct / indirect contact Methylene absence of any published and blue activating (VOC) substances approved Australian guidelines to aid scheduling. Ensure investigation in all areas extend beneath pit depth. Ensure installation of groundwater wells to monitor impacts. Consider what chemicals were used to light the fire. Receptors (MBAS) (Indicator) AFFF Contaminant transfer by ingestion / inhalation Sulfonates AFFF (PFOS) MANAGEMENT CONSIDERATIONS Surface Water Glycol ethers AFFF (DGBE) Operate a permit to work system Fuel/oil spillage can impact surface water quality Surface run off can impact drainage systems Contaminant transfer by direct / indirect contact Legal framework Contaminant transfer by ingestion / inhalation Best practice management Documentation of past, present and proposed activities techniques Air Contaminants may migrate in the form of dust Contaminant transfer by inhalation Use of instrumentation to monitor explosive atmospheres to protect the workforce (use of intrinsically safe equipment). Document Control: Version 1.0 Issued: SMEC, Oct 2007 and migration pathways important with these types of contaminants are particularly