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l� u J P n ENV/RONMEWAL TECHNOL061ES When processing a request to bring contaminated soil to the landfill, Forward will follow the procedural pathway depicted on Figure 2. This process involves a careful characterization and evaluation of the contaminated soil to determine its soil type, as discussed in Section 3. The determination of the soil type will control whether Forward may use its self -implementing procedures or must seek regulatory approval. In order to determine the contaminated soil acceptance procedure, information about the soil chemical history will be collected by Forward, after the contaminated soil generator completes a contaminated soil description form (CSDF) and other waste characterization documents. Upon receipt of a completed contaminated soil document package from the generators of the contaminated soil, Forward will evaluate the CSDF for sufficiency and contaminated soil classification and type. Forward will then make a decision as to the acceptability of the contaminated soil, in accordance with the decision procedures described in Section 5.4. 5.1 Pathways for Contaminated fAcceptance Available historical chemical data on all contaminated soil proposed for disposal at the Fo Landfill will be provided by generators through completion of a contaminated soil chemi description • (CSDF). If the information is determined by Forward to be representative and sufficient to determine the classification and type of soil (criteria for determination are discussed in Section 5.4), a decision will be made by Forward as to acceptance of the contaminated soil. Four different pathways (Pathways 1 through 4) have been identified for determining the acceptability of an imminent contaminated soil. These pathways are subsets of the flowchart in ' Figure 2 (Flowchart 2) and are shown in Figures 2A through 2D. Pathways 1 and 2 will follow the self -implementing procedures described here, whereas Pathways 3 and 4 will require case- by-case review by the RWQCB and PHS. The soil types for the various pathways and the corresponding disposal WMU are summarized in Figure 3. Pathway 1(shown in Figure 2A) applies to non -hazardous contaminated soil for Class III WMUs and includes contaminated soil Types I and amely those with: iT • below designated levels of metal contaminated soils • petroleum hydrocarbon soil with TPH below 100 ppm 64 • PNA-contaminated soils with total PNA concentrations below 10 ppm 10 7255 Soroni Drive* Oakland, California, USA 94611 TEL(415)339-1543- FAX(415)339-6775