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_ ENVIRONMENTAL TECNNOLOG/ES ' 3.0 SOM TYPES AND CLASSIFICATION The landfill is permitted by CIWMB as a Class II and III waste management facility. Two State ' agencies are responsible for the classification of wastes in California: The Department of Health Services (DOHS), and the State Water Resources Control Board, together with the nine Regional Water Quality Control Boards. The DOHS basically classifies wastes as hazardous and non- hazardous, while the Water Boards classify wastes as either designated or non-designated. The classification of a contaminated soil will determine the appropriate WMU for disposal. The PHS as the local enforcement agency (LEA) is responsible for enforcing compliance with CIWMB ' requirements at the landfill. The following classes of waste can be accepted at the Forward Landfill, as indicated in the ' RWQCB's WDR Order No.: 89-148: • non-hazardous solid waste, including contaminated soil below designated ' concentrations in Class III WMU D and H • non-hazardous petroleum hydrocarbon soil in Class II WMU G and Class III ' WMUS • hazardous waste with a variance from DOHS, in a Class II WMU � S • designated wastes that are established to the satisfaction of the RWQCB t0 have ' a low potential for degrading water quality, in a Class III WMU • sewage and water-treatment waste, in certain portions of Class III WMUs D and Alt( • liquid and semi-solid wastes,in proposed Class II surface impoundment s `( WMU F • shredder waste, in Class III WMUs D and H • wood and coal ash waste, in Class II WMU E ' • friable asbestos in Class III WMUs D and H. ' Four types of contaminated soils have been derived from the list of waste above. The following are the contaminated soil types, as well as the condition of acceptance, to be accepted at the landfill. ' 5 7255 Soroni Drive-Oakland,California,USA 94611 ' TEL(415)339-1543-FAX(415)339-6775