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San Joaquin Steel r 2000 Sanguinetti Lane, Stockton, California Remedial Excavation Work Plan 1.0 Project Identification This project will involve the shallow excavation of various areas at San Joaquin Steel where surface spillage of paints and petroleum compounds have occurred (Figure 1). 2.0 Site Description And History San Joaquin Steel is a steel fabrication facility. In June of 1992, Meinfelder obtained surface samples from areas of the San Joaquin Steel property which exhibited obvious paint residues and staining from petroleum compounds (Appendix A). f The property owners have since solicited bids from various companies to remove the Lcontaminated areas, and SEMCO was the successful bidder. SEMCO has requested WIIF to provide the registered professional to oversee the work. 3.0 Site Work Plan SEMCO.proposes.to excavate approximately.77 tons,of oil land..grease contaminated soil �from areas—of samples'P"1; 2,.3, &.-4' The maximum depth of the excavation is expected to be IessTthan three feet (Figure 2). Three laboratory soil samples will be taken from the bottom of the excavation for verification of the of the contamination's vertical limits. The oil and grease contaminated soil will be characterized, manifested and transported to a licensed recycling facility. ,The lea paint residue from the asphalt area in front of the building and in the area of sample R=1 will be removed andtplaced.in a.DOT 17-H drum. The material will-be clraracte`ri;idd,manifested nd transported to a licensed disposal facility. LThe excavations will be logged by a geologist under the direct supervision of a registered professional using the Unified Soil Classification System. The color, texture, moisture, plasticity (if applicable), consistency of the earth materials, pertinent soil or bedrock characteristics and any evidence of contamination will be noted. All water-bearing zones and the depths at which they were encountered will be noted on these logs.