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Jim Barton - Status Update, Groundw� Treatment System Speedy Foods age 1 <br /> i <br /> From: "John Lane" <jlane@groundzeroanalysis.com> <br /> To: "Barton, Jim" <BartonJ@rb5s.swrcb.ca.gov>, "Wong, Jeff' <jwong@sjcehd.com> <br /> Date: 612105 10:58AM <br /> Subject: Status Update, Groundwater Treatment System, Speedy Foods <br /> Jim and Jeff: <br /> This email is to follow up on the voicemail I left for Jim yesterday <br /> (06101105). The groundwater treatment system at the Speedy Foods site <br /> was shut down on 05/31/05 at approximately 18:30 for the following <br /> reasons: <br /> . i <br /> 1. Treatment system sample results for sample collected 05/23/05 showed <br /> breakthrough of carbon unit C2, the lead unit, at approximately 2.3 ppb <br /> MTBE;while also showing breakthrough of the trail unit (C1) at.52 ppb - <br /> MTBE resulting in an apparent discharge to the ground surface. These <br /> results are somewhat anomalous since you would expect to see <br /> breakthrough occur in the lead unit prior to the trail unit. Also, <br /> based upon a preliminary carbon usage analysis, the carbon usage from <br /> C1 should have been well less than 500 pounds, less than 114 capacity. <br /> Upon confirming the preliminary results with the laboratory late on <br /> 05131105,we resampled the EFF and C2 and submitted samples to the <br /> laboratory on 06101105. i will keep you informed of the re-test as <br /> soon as results are available. . <br /> 2. Upon our regular weekly O&M visit earlier on 05131105, the tenant <br /> indicated that the San Joaquin County Mosquito &Vector Control <br /> District had concerns regarding ponded water in the field. It appears <br /> that work by CalTrans has altered our discharge area resulting in <br /> visual ponding of water, We need to evaluate alternate discharge <br /> methods, such as an infiltration gallery or infiltration wells. This <br /> should be discussed with Jim Barton upon his return. <br /> Respectfully, <br /> John Lane <br /> Ground Zero Analysis, Inc. ' <br /> 1714 Main Street <br /> - Escalon,CA 95320-1927 <br /> (209)838-9888 Phone ` <br /> (209)838-9883 Fax <br />