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G � <br /> 7005 Condor Earth Technologies , Inc . <br /> ENMRONNENT HEALTH 21663 Brian Lane, Sonora, CA 95370 (209) 532-0361 <br /> PFPM°IT/SFPI/Ir,FS 188 Frank West Circle, Suite 1, Stockton, CA 95206 (209) 2344518 <br /> r <br /> May 11 , 2005 Condor Project No. 1707 C <br /> MONTHLY TREATED WATER DISCHARGE SELF-MONITORING REPORT <br /> APRIL 2005 <br /> CANEPA' S CARWASH, 6230 PACIFIC AVE., STOCKTON, CALIFORNIA <br /> APRIL 2005 DISCHARGE SAMPLING <br /> This is a report of the results of discharge sampling and monitoring events conducted by Condor Earth <br /> Technologies, Inc. (Condor) on April 4, 2005; at the Canepa' s Car Wash site. The equipment began <br /> operation and discharge on November 1 , 2004. Report attachments include laboratory analytical reports <br /> for the April sampling (Attachment A) . <br /> The final discharge point was sampled at the above-referenced site to evaluate treated water quality being <br /> discharged to the sanitary sewer system after treatment through an air-stripper/activated carbon series . <br /> Laboratory analytical results from the treated groundwater sample will be used to monitor and verify <br /> groundwater discharge quality and operational efficiency of the treatment equipment. <br /> OPERATIONAL PARAMETERS <br /> Table 1: Flow and Lower Explosive Limit Field Parameters <br /> o <br /> Temp. PH Total Flow Rate of Flow /o LEL LEL <br /> Date Time <br /> (°C) (field) (gallons) (daily gallons (hexane) (10% exceeded) <br /> average) <br /> 9/30/2004* 14: 00 6. 88 9. 64 350* 0 . 0 0.0 None <br /> 10/31/2004* 12 : 00 NM NM 350* 0 .0 0 .0 None <br /> 11/ 1/2004 14: 00 NM NM 350* 0 .0 -0 . 1 None <br /> 11/30/2004 14: 00 NM 9 .50 107,308 35577 +0 . 1 None <br /> 12/31/2004 14: 00 NM NM 152,581 115460 +1 .4 None <br /> 1/31/2005 15 : 30 20 .53 7 .71 193,015 1 ,304 -2 .7 None <br /> 2/28/2005 17 : 00 NM NM 293 ,456 3 ,587 - 1 .6 None <br /> 3/ 1/2005 16:00 NM NM 299,216 5,760 -0 . 9 None <br /> 3/30/2005 16 : 00 NM NM 2993216 52760 -0 . 9 None <br /> 4/30/2005 13 : 10 NM 9.21 375, 847 27554 - 1 . 9 None <br /> °C = degrees Centigrade NM = Not Measured <br /> *: total flow through the inline flow meter was placed into the storage tank as of this date and was not discharged. <br /> %a 07 CONDOR <br />