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CE <br /> T <br /> CONDOR EARTH TECHNOLOGIES INC. <br /> May 17, 1994 21663 Brian Lane <br /> RO. Box 3905 <br /> Sonora, CA 95370 <br /> Mr. Doug Wilson, Environmental Health Specialist (209)532-0361 <br /> Public Health Services FAX (209) 532-0773 <br /> San Joaquin County Environmental Health <br /> P.O. Box 388 <br /> Stockton, CA 95201-0388 <br /> RE: EL RANCHO ROCK & SAND, INC. QUARRY SITE RECLAMATION <br /> EXCAVATION OF CONCRETE SLABS, PHASE I RECLAMATION <br /> Dear Mr. Wilson: <br /> Condor Earth Technologies, Inc., (Condor) is proceeding with Phase I of the reclamation of the <br /> El Rancho Rock & Sand, Inc., Quarry site per the approved Reclamation Plan and under the <br /> direction of Tom Gau of Development Services. <br /> Condor is prepared to begin excavation of the "concrete pads" and "concrete containment" <br /> illustrated on the attached Drawing #02, Site Grading Plan. These two small concrete pads and <br /> the concrete containment structure for above-ground storage tanks are in an area which was <br /> previously examined by Mr. David Irey, Deputy DA, in September of 1993. This area was <br /> addressed in the report titled Visual Survey with Soil Sampling, September 20, 1993, by <br /> Artesian Environmental Consultants. <br /> Mr. Irey directed EI Rancho, in a telephone conversation to their legal counsel, Ms. Deborah <br /> Fialkowski, on March 4, 1994, to notify the Department of Environmental Health (DEH) of the <br /> time when excavation of these structures was to take place. He stated that this notification will <br /> give the DEH the opportunity to observe the demolition and removal of the structures, and to <br /> take soil samples if they wish. Excavation of these structures will take place under the direction <br /> of a Certified Engineering Geologist from Condor, and samples will be collected by Condor of <br /> any questionable materials encountered. <br /> The attached Drawing # 01, Grading Specifications, states that "A representative of the San <br /> Joaquin County Department of Environmental Health shall be present during the removal of the <br /> concrete pads in case any unanticipated hazardous materials or contamination are uncovered." <br /> This specification was inserted into the subcontractor drawings to prevent any unsupervised <br /> excavation from taking place in this area. Drawing # 01 additionally states that "Should <br /> hazardous materials or contamination be encountered in any excavation, work will cease in that <br /> area." Any remediation of potentially hazardous materials or contamination will take place with <br /> the approval of DEH and as described in the Work Plan to Address Potentially Contaminated <br /> Soils submitted for your review and approval. <br /> ENVIRONMENTAL 0 GEOLOGICAL ENGINEERING • GEOTECHNICAL <br />