ARCHIVED REPORTS_XR0011995 - Laserfiche WebLink

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V it This assessment has revealed three historical recognized environmental conditions in connection with the site.- 0 ite:• The past use of PCB-containing fluid in the electrical switching stations. • The potential presence of hazardous substances in the steam-tunnel system. • The potential presence of hazardous substances in the demolition debris located in the fill beneath 4.. the current track and field. This assessment has revealed three de minimis conditions in connection with the site: • The stockpiles of soil with concrete debris stored on the southeastern corner of the site. • The presence of a sewer screening station on the site. * The PG&E electrical distribution station using PCB-containing oil located on the site. Additional services included the review of other informational sources. Our site reconnaissance and the file review conducted at the San Joaquin Valley Air Pollution Control District indicated emergency generators that, when used, will emit hazardous air pollutants. The facility housing these emergency generators is located on the adjacent eastern g j property. No pipelines under the State Fire Marshal's jurisdiction were identified. The gas line diagrams provided by Pacific Gas & Electric (PG&E) appear to indicate a two-inch plastic (assumed low-pressure- under 60 pounds per square inch) natural gas line supplies the site from the south side of Park Street, and extends north along Stanislaus Street. According to both the PG&E-provided maps and the facilities maintenance plans, natural gas pipelines are located throughout the site. The PG&E plans also indicate that PG&E has not maintained the natural gas distribution system since 1934 and that an abandoned gas well is located two blocks south of the site. The Department of Oil, Gas, and Geothermal Resources maps indicate that two plugged and abandoned oil and/or gas wells arc located approximately 300 feet south and 500 feet west of the site, respectively. According to the topographic map, aerial photographs, and site reconnaissance,the nearest railroad tracks �. are located approximately 300 feet cast of the site. A sewer screening station is located on the southern portion of the site property. The additional requested service information is discussed in Section 7.0 of this report. No geologic or seismic hazards were identified that are likely to impose significant constraints on the proposed site use. The potential for fault rupture is considered remote, and the potential for soil liquefaction due to seismic shaking is low. Mitigation of seismically induced settlement should be limited to minor strengthening of foundation and slabs. Slope gradients are low, and the potential for slope failure is considered non-existent. The potential of site inundation from flooding of nearby watercourses or failure of reservoirs is considered relatively low. The near-surface soils appear to be moderately to highly compressible or expansive. We recommend a Geotechnical Engineering Study be completed to further assess site-specific soil conditions in accordance to Title 24 prior to design and construction of the proposed site improvements. LIMTTATIONS TO EXECUTIVE SUMMARY This executive summary should only be read in conjunction with the full report text. All terminology is La defined in the Glossary of Terms and Acronyms in Appendix H. The scope of work, significant assumptions, limitations, and exceptions should be understood prior to reading the site-specific information, findings, opinions, and conclusions. 4M �+ i ' CONDOR