Laserfiche WebLink
r r <br /> CONDOR EARTH TECHNOLOGIES INC <br /> 188 Frank West Circle, Suite I <br /> Stockton, CA 95206 <br /> Phone 209.234.0518 <br /> FAX 209.234.0538 <br /> CONDOR www.condorearth.com <br /> June 7, 2013 <br /> Ellis Daniels, President <br /> Valley Steel Construction, Inc. <br /> 3197 S. Parkway Drive <br /> Fresno, CA 93725 <br /> Subject: Soil Testing and Disposal <br /> Proposed Roof Structure at Existing BNSF Facility <br /> 801 Diamond Street <br /> Stockton,California <br /> Condor Project No. 6600A <br /> Dear Mr. Daniels: <br /> This letter report includes the results of soil testing and disposal for the Proposed Roof Structure at <br /> existing BNSF Facility located at 801 Diamond Street in Stockton, California. The general location of the <br /> site is shown on the Figure 1 — Vicinity Map (attached). The project site is located at approximately <br /> Latitude 37.94980 North and Longitude 121.2588° West. Condor Earth Technologies, Inc. (Condor) <br /> performed these activities and prepared this report at the request of Ellis Daniels of Valley Steel <br /> Construction. On April 17, 2013 geotechnical borings were being made to collect samples for the <br /> Geotechnical Engineering Study dated May 3, 2013. Stained and odorous soil was observed by the San <br /> Joaquin County Environmental Health Department (SJCEHD) inspector. SJCEHD requires <br /> containerization, testing, and reporting of materials that are suspected of being contaminated. SJCEHD <br /> requires proper disposal if laboratory testing indicates that the material is contaminated. This letter report <br /> was prepared at your request to meet the requirements of the SJCEHD. A copy of this report will be sent <br /> to the SJCEHD upon your authorization. <br /> 1.0 FIELD WORK <br /> Condor explored subsurface conditions at the site by means of three (3) borings (SB-1 through SB-3) <br /> drilled to depths ranging from approximately 16.5 to 21.5 feet below the existing site grade at the <br /> locations shown on Figure 2—Site Map with Boring Locations (attached). All of the borings were drilled <br /> utilizing the solid-stem auger drilling method. The borings were drilled on April 17, 2013 by West Coast <br /> Exploration, Inc. (C57 License#870761). A Condor representative observed the drilling and sampling of <br /> each boring. <br /> A Condor representative visually classified soil samples and cuttings at the time of drilling using the <br /> Unified Soil Classification System. At the time of our field investigation, groundwater was not <br /> encountered in any of the exploratory borings. Boreholes were backfilled with neat cement for the entire <br /> depth. All borehole abandonments were approved by a SJCEHD inspector. <br /> Stained and odorous was observed in SB-2 from a depth of 0.5 feet to a depth of 5.0 feet. The soil had a <br /> greenish blue color. The soil was put into plastic bags and tested with a photo-ionization detector(PID). <br /> The PID detections were 14 parts per million vapor(ppmv) and 134 ppmv. A sample was collected from <br />