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04/15/2002 10 22 5102294238� TELFER OIL COMPANY PAGE 02 <br /> 1 ENVIRONMENTAL HEALTH DEPA► ilv k ._. <br /> iSAN JO,A►.QUIN COUNTS f✓ -11 T, p!r Svprrvrwin <br /> pnou K Herm,ILLH 5 (arl ilurs+nan R I I f ti <br /> Dlrrcrar 304 fast Weber Avenue,ThlCd Fluor Mfkc Ifuggin% K I ll't R 1)t <br /> r ` Al Olin,RE H S. Stockton Cahfornta 95202-2708 ihwglav-w wilum K I l f'� <br /> Progra-M..9rr Telepllune (209)468-3420 It I I I <br /> 1 ap Lsurie A.CO[WIA,RE-KZ <br /> Fax (209) 464-0138 Mark Bar k IN x F 11 ti <br /> Progrmn p{anager Mark H�tru.11��+ k[ II 5 <br /> Jeff SoDkine APR p 2 2002 <br /> Meatrern o31 a spreading Inc. <br /> PO Boal 709 <br /> Martislez, CA 94553 <br /> ' Re, Western 01 and Spreading Site Code 1927 <br /> 19256 N Dewy 99 <br /> Acampo CA 95220 <br /> 1 San Joaquin County Environmental Health Department(EHD)has recemW and revw"d Interim <br /> Summery of Frndmgs(Ihe report)dated April 30,2001 with February 28,2002 Addendum <br /> prepared by Dan Barber Analytical results of the soil samples collected from soil bonng C-2 at <br /> 1 the northeast comer of the property were 9,900 mittigrams per kilogram mg/kg of Total Petroleum <br /> Hydrocarbons e_-_*ctable(TPH-,g)at 35 feet below surface grade(bsg)and 15 50D mg/kg of <br /> TPH-e at 40 fest bsg The results of soil samples from C-4 located at the eastern edge of the <br /> property were 2 930 mg/kg of TPH-e at 25 feet bag,and 1,240 mg/kg of TPH-e at 30 feet bsg <br /> ' Ane"Icaf results of the groundwater samples collected from monitoring well#1 (MW-1)In <br /> January 2002 were 1,200 micrograrns per Igor(µgA)of TPH-diesel The report referenced the <br /> presence of private wells on the north and earl no, bonng properties <br /> The report states that groundwater gradient and clow d+rection was determined using two off-site <br /> imgat[on wells end one ori site well Please be advised that groundwater gradients must be <br /> determined by information from properly constructed monitoring wells not Irrigation or other wells <br /> The extent of the contamination in both sod and groundwater has not been defkled Submit a <br /> ' work plan to EHD that w171 define the extent of the contamination Immediately to comply with San <br /> Joaquin County District Attorney Office requirements Currently MW-t Is The only monitoring well <br /> on este EHD direct&you to nslall at least two additional mon,tonntg wells on site to confirm the <br /> on-este groundwater contamination and to provide data to calculate groundwater gradient flow <br /> 1 dkectlon <br /> EHO directs you to conduct a 2000-foot welt survey and submit the results Including properly <br /> scaled and labeled map,site addresses,any known pumping rates,and any known construction <br /> details of the wells A work plan for a well survey Is not required <br /> If you have any questions contact Jeffrey Wong at(209)488-0335 <br /> 1 Dorms Heran,REBS.Director <br /> Envonmerital Health Department <br /> ' Jaffrayang,Senior REHS T <br /> areagorio,RENS <br /> LOPMft Mitigation tint IV Supervisor <br /> C. RWOCB,Central Valley Region—Mary Hartzell <br /> ' c SJCADA-David Irey <br /> 1 2 d dt'E 'ED 20 S1 .add <br />