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0 0 <br /> ENVIRONMENTAL HEALTH DEPARTMENT <br /> SAN JOAQUIN COUNTYsQ•_ �oG Unit Supervisors <br /> Donna K.Heran,R.E.H.S. Carl Borgman,R.E.H.S. <br /> -� 304 East Weber Avenue.Third Floor <br /> y. ' Director Mike Huggins,R.E.H.S.,R.D.I. <br /> K I Al Olsen,R.E.H.S. Stockton, California 9 '_02-?708 <br /> Dou_las W.Wilson,R.E.H.S. <br /> • �•. �P Program Manager Telephone: (209) 465-3420 Margaret Lagorio,R.E.H.S. <br /> S6 -6RLaurie A.Cotulla,R.E.H.S. Robert McClellon,R.E.H.S. <br /> Program Manager Fax: ('_09) 464-01 i$ dark Barcellos,R.E.H.S. <br /> May 7,2004 Sent Certified and U.S.Mail �- <br /> Judy McCambell <br /> Tandy Corporation FILE COPY <br /> 100 Throckmorton St.,Suite 811 <br /> Fortworth,TX 76102 <br /> RE: Monitoring and reporting requirements for gas monitoring probes at Turnpike Rd.south of <br /> Downing Rd.,Stockton,CA.(APNs: 17517018, 17517019,17519001.) <br /> In accordance with Titre 27 California Code of Regulations (27 CCR). Section 20933(a), and Section <br /> 20934(a), the San Joaquin County Environmental Health Department (EHD) is requiring quarterly <br /> monitoring and reporting for the gas monitoring probes constructed at Turnpike Ftd.,south of Downing Rd. <br /> The following sections explain requirements that must be met. <br /> 27 CCR, Section 20933; Monitoring Frequency ! <br /> (a)At a minimum,quarterly monitoring is required.The EA may require more frequent <br /> monitoring based upon site specific factors in section 20923(a)(2). When more frequent <br /> monitoring is necessary,the requiring agency shall notify the operator. <br /> 27 CCR, Section 20934;Reporting <br /> (a)The results of gas monitoring shall be submitted to the EA within ninety(90)days of sampling, <br /> provided that compliance levels are maintained. When compliance levels are exceeded at any <br /> probe,the requirements of section 20937 shall apply.The monitoring reports shall include: <br /> (1) the concentrations of the methane,as measured at each probe and within each on-site <br /> structure; <br /> (2) the concentrations of specified trace gases,if required; <br /> (3) the documentation of date, time, barometric pressure, atmospheric temperatures, <br /> general weather conditions,and probe pressures; <br /> (4) the names of sampling personnel, apparatus utilized, and a brief description of the <br /> methods used;and <br /> (5) a numbering system to correlate monitoring results to a corresponding probe <br /> location. <br /> The EHD is requiring quarterly sampling of the gas probes to be performed within thirty(30)days of <br /> receipt of this letter. The results of the gas monitoring are fo be submitted to the EHD within ninety <br /> (90)days of sampling provided that compliance levels are maintained. <br /> If you have any questions regarding this letter,please contact Ted Tasiopoulos R.E.H.S.at(209)953-7698. <br /> Sincerely, <br /> C"'k'_ <br /> Robert McClellon,Supervisor R.E.H.S. <br /> Environmental Health Department <br /> CC:John Macanas,CIWMB,MS-20 <br /> 1 <br /> N . .� <br />