Laserfiche WebLink
R R N „ <br /> {1 ' L 1 i O W 1 � A N D 1 a ! •* s i t t <br /> ` <br /> C A L D W E L L <br /> February 14, 1994 <br /> Mr Chuck Carmel <br /> ARCO Products Company <br /> Post Office Box 5811 <br /> San Mateo, California 94402 017-7484-01/1 <br /> Subject Third 1993 Quarterly Report for ARCO Station 434 <br /> 501 Kettleman Lane, Lodi, California Site Code 1341 <br /> Dear Mr Carmel <br /> This report presents groundwater monitoring results and summarizes the progress of the soil <br /> vapor and groundwater extraction and treatment operations for the third quarter of 1993 at <br /> ARCO Products Company (ARCO) Station 434, located at 501 Kettleman Lane in Lodi, <br /> Calitornia Monitoring was performed on August 23, and 24, 1993, by Emcon Associates <br /> (Emcon) The remediation system data were collected by Brown and Caldwell personnel <br /> This report was prepared under Task Order 434-93-5 <br /> There are six on-site monitoring wells (W-lA, W-2, W-2A, W-2B, W-3, and W-9) and eight <br /> off-site monitoring wells (W-4, W-5, W-6, W-7, W-8, W-10, W-11, and W-12) (Figure 1) <br /> All monitoring wells were measured and sampled except W-2 (due to an obstruction), and <br /> W-2A and W-4 (due to lack of water) W-2 appears to be bio-fouled, and several attempts , <br /> to mechanically unplug it have not been successful It will be drilled out and reconstructed <br /> in the spring of 1994 <br /> Field and Analytical Methods <br /> Emcon personnel measured depth-to-water, purged each well, and collected groundwater <br /> samples at the site Static water Ievels were measured prior to purging Prior to sampling, <br /> the wells were purged of a minimum of three well volumes, or until evacuated, using a <br /> This report was prepared in accordance with the standards of the environmental consulting industry at the tone it was <br /> prepared It should not be relied upon by parties other than those for whom it was prepared, and then onl) to the ettent <br /> of the scope of work which %as authorized This report does not guarantee that no additional environmental <br /> conimnmation beyond that described to this report ertsts at the site <br /> 748IIREP0RTS%AUCe93QTR RPT <br /> Environmental Engineering And Consulting Analytical Services <br /> 9616 MICRON. a1ENUE P 0 Box 134a9 SACROIENTO CA 9)813 3449 <br /> (916) 444 0123 Fax {916) 856 )2 7 7 <br />