Laserfiche WebLink
i <br /> EN <br /> E <br /> i;i' m ailn Cakhved <br /> i:'':" .. <br /> DEC 'I_ D 1991 <br /> December 16, 1991 LNVIROiNVIE:NTAL HEALTH <br /> PE',M.1T/SER ICES <br /> Mr. Chuck Carmel <br /> ARCO Products Company <br /> 2000 Alameda de las Pulgas <br /> post Office Box 5811 017-5690-03{1 <br /> San Mateo,California 94402 <br /> Subject; Status of Groundwater Extraction System, ARCO Station 2133, <br /> Stockton, California <br /> Dear Mr. Cannel: <br /> e results Of the <br /> This letter presents the current status of the groundwa'•er extraction system <br /> O)Stan 2133 ocated at <br /> groundwater discharge sampling at ARCO Products Company( is a sumanmY of the <br /> 2908 Benjamin Holt Drive in Stockton,California. listed cn,.onologically November <br /> activities related to the discharge of groundwater at the ns from October 16 through n <br /> 15, 199 <br /> 1. Table 1 presents a summery of the detected constituents for the extraction system,and <br /> the laboratory reports are presented in Exhibit A. <br /> le for laboratory analysis of total petroleum hydrocarbons <br /> 1012.31,91 Collected effluent water sasnp and metals. <br /> (TPH) and benzene, ethylbenzene,toluene.and xylenes (BE= <br /> 11/06/91 Sampled extraction system for BM and TPH. <br /> this re <br /> porting period (31. days)was approximately 5.0 gallons per <br /> The average daily flow during P period was 224,000 gallons. The zone of capture of this <br /> minute(gpm). The total flow for chis pe11 <br /> extraction system with a LO.Srgpm flow urin a Novemberextraction <br /> to November 15,81991• The ave age <br /> the flow rate was reduced to 5.5 9Pm g stem was shut down for maintenance. <br /> flow rate is lower than 5.5 gpm because the system <br /> -M, following calculations show average pounds per day of each constituent discharged to the <br /> sanitary sewer. <br /> 5690,r0RR PJJ&XM-2 <br />