Laserfiche WebLink
., Q ] <br /> f y/ <br /> . CA B R I A - ° ��`���D <br /> M January 25, 2005 <br /> Ms. Mary Meays <br /> San Joaquin County E�1 HEAITN <br /> Environmental Health Division ENPE� � SEPiV10ES <br /> 304 East Weber Avenue i <br /> Stockton, California 95202 <br /> Re: Proposed Well Sampling Schedule 2005 <br /> Olympian JV(Jimco Truck Plaza) <br /> 1022 Frontage Road <br /> Ripon,California <br /> Site Code: 1604 ! <br /> I <br /> i <br /> Dear Ms. Meays: <br /> Cambria Environmental Technology, Inc. (Cambria) was recently retained by Olympian JV <br /> (Olympian) to provide environmental services pertaining to the above referenced site. On behalf of <br /> Olympian,Cambria proposes to revise the well sampling schedule to reduce unnecessary field labor <br /> and analytical costs. <br /> Based on our review of existing data, Cambria proposes the following modifications to the well <br /> sampling schedule: <br /> • Hydrocarbons have not been detected in groundwater samples collected from wells MW-3, <br /> MW-4, MW-5, and MW-7 for at least four quarters. As such, Cambria requests that <br /> groundwater sampling frequency be reduced from quarterly to annually for wells MW-3, <br /> MW-4, and<.MW-5f and from quarterly to semi-annually for well MW-7. Please see attached i <br /> table for groundwater analytical results. <br /> • TPHg, TPHd, benzene, toluene, ethylbenzene, and xylenes (BTEX), and methyl tert butyl <br /> ether (MTBE) appear to be the only contaminants of concern. Fuel oxygenates have not 1 <br /> been detected in groundwater samples collected from wells MW-2 through r a <br /> least four quarters (see attached table). As such, Cambria requests that groundwater samples <br /> from all wells be analyzed for only TPHg and TPHd by EPA method 8015M; BTEX andQ <br /> MTBE by EPA method 8021B; and fuel oxygenates by EPA method 8260B. .1 E,1(� 4-'6Dr—a <br /> -LPCIO <br /> see our proposed well sampling schedule for 2005 on the following page. <br /> Cambria <br /> Environmental is f ' <br /> Technology,,Inc. <br /> a �5900 Hollis Street <br /> Suite A • <br /> Emeryville,CA 94608 <br /> Tel(510)420-0700 <br /> fax(510)420-9170 <br /> i <br /> 1 <br />