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1 significant they will be subjected to data recovery excavations using the methods outlined above for hand excavation. 1 4.0 POTENTIAL ENVIRONMENTAL CONCERNS ' Along with the REC's and HREC's from the Phase I already stated in section 3.2.1 above the following aspects of the Site were discovered. A site reconnaissance was conducted by David Wood on December 3, 2004 and ' December 21, 2005. Several environmental concerns were observed during these Site visits. • An abandoned well exists at 517 East Hazelton St. This well needs to be ' destroyed to protect the groundwater aquifer. This well may be the water wells shown in the middle of the block on the 1895 Sanborn Fire Map. ' • Several houses have Asbestos Containing Building Materials (ACBM). Because of the age of the houses more ACBM are expected to be found in ceiling tiles, siding,wall and ceiling texture,transit flue pipes and within other building ' materials used in the fabrication of these houses. SUSD is required to identify manage and remediate ACBM prior to-demolition activities. • Routine car maintenance is occurring on at least two properties. Because of the ' nature of auto repair, small quantities of automotive fluids (grease, gasoline, antifreeze, etc.) may have been released into the environment resulting in potential localized contamination. ' • A transformer was located between the sidewalk and the street at 525 E. Hazelton, APN 149-085-14. The identification number on the pole and the transformer had been destroyed. In a fax received on January 4,2005 from Mr. Steve Okamoto ' from PG&E,he states that"PG&E is unaware of the existence of PCB's in the transformers at the above location" and that"this pole and transformer is scheduled to be removed as part of the Spanos Elementary Project". ' 5.0 ENVIRONMENTAL SETTING t 5.1 General Geologic Conditions and Topography The United States Geographical Service (USGS) Topographical Maps show the terrain as nearly level. EDR®Radius Map with GeoCheck® shows the elevation to be 18 feet above sea level and the area within 1 mile of the Site sloping 5 feet north to south and 13 feet east to west. No geologic or seismic hazards were noted and the potential for fault rupture or soil liquefaction due to seismic shaking is low(Condor, 2003) 5.2 General Soil Conditions ' The Soil Conservation Service (SCS) State Soil Geographic Database (STATSGO) classify the soils in the area as clayey with very slow infiltration rates. Soil layer information is found in Table 4. 1 ' PEA Workplan 12 Spans Elementary School January 18,2006 1