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Conocolne <br /> 4.126 East Washingtm Street. <br /> stookts".California <br /> Summary of Air Monitoring Analytical Results <br /> mg/m3) <br /> Influent Laborato <br /> Consultant <br /> Concentrations Analytical <br /> Sam lin Date <br /> 1989 October ND<1000 NR Trace Analysis DERS <br /> 1990 February 4 000 NR Trace Analysis DERS <br /> June 3,900 NR Trace Analysis DERS <br /> August 5,400 NR Trace Analysis DERS <br /> September 7,600 NR Trace Analysis DERS <br /> October 3,700 NR Trace Analysis DERS <br /> November 8,100 NR Trace Analysis DERS <br /> December 3,900 NR Trace Analysis DERS <br /> 1991 January 3,200 NR Trace Analysis DERS <br /> February 6,200 NR Trace Analysis DERS <br /> March 7,000 NR Trace Analysis DERS <br /> April 4,100 NR Trace Analysis DERS <br /> May 33,000 NR Trace Analysis DERS <br /> June 8,300 NR Trace Analysis DERS <br /> July 16,000 NR Trace Analysis DERS <br /> August 11,000 NR Trace Analysis DERS <br /> September 9,700 NR Trace Analysis DERS <br /> 1992 October 23,000 NR Trace Analysis DERS <br /> November 9,600 NR Trace Analysis DERS <br /> • December 33,000 NR Trace Analysis DERS <br /> 1993 January 8,800 NR Trace Analysis DERS <br /> February 13,000 NR Trace Analysis DERS <br /> March 1,800 NR Trace Analysis DERS <br /> 1994 July 1,700 NR Trace Analysts Sunnver <br /> August 2,100 NR Trace Analysis Sunriver <br /> September 1,900 NR Trace Analysis Sunnver <br /> October 2,600 NR Trace Analyses SECOR International Inc <br /> November 2,000 NR Trace Analyses SECOR International Inc <br /> December 2,200 NR Trace Analysis SECOR International Inc <br /> 1995 January NA NA Trace Analysis SECOR International Inc <br /> February 47 ND<30 Trace Analyses SECOR International Inc <br /> March NA NA Trace Analysts SECOR International Inc <br /> April 67 ND<30 Trace Analyses SECOR International Inc <br /> May 870 ND<30 Trace Analyses SECOR International Inc <br /> June NA NA Trace Analyses SECOR International Inc <br /> July NA NA Quanterra SECOR International Inc <br /> August 97 2 Quanterra SECOR International Inc <br /> September NA NA Quanterra SECOR International Inc <br /> October 210 52 Quanterra SECOR International Inc <br /> November 190 ND<4 1 Quanterra SECOR International Inc <br /> December 220 17 Quanterra SECOR International Inc <br /> TPHg-Total Petroleum Hydrocarbons as gasoline using EPA Method 8015(modified)for data prsented prior to June 1995 <br /> and the EPA TO-3 Method was used for data presented from July 1995 to present <br /> DERS-DuPont Environmental Remediation Seances <br /> NA-Not Available <br /> ND-Not Detected above the laboratory detection limit <br /> NR-Not Required by San Joaquin Valley Unified Air Pollution Control District until January 1995 <br /> - Results reported in ppmv <br />