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September lq, 1978 <br />Project l\6 -l.3 <br />-2- <br />The disposal trench was constructed with a leachate drain which discharges <br />to a sump at the south end of the trench. Since the site was opened in <br />January 1978' measurable quantities of leachate have not accumulated in ` <br />the sump' <br />Table 2 below, provides information on the Barium/Strontium scrubber sludge <br />generated by FMC Corp. (Modesto) and approved for disposal in FMC - Trench #1 <br />at the northeast corner of the site. <br />Quantity Hin, Elevation <br />Date (cu.yds.) Type of Discharge <br />May 2680 Group \ 15/ <br />June 1460 <br />July 1420 <br />Aug' 1940 n n o <br />Measurbh)e quantities of leachate have not accumulated in the sump at the <br />south end of FMC - Trench #\. <br />Monitoring wells fl, #2 and #1 were checked on September 14, 1978, Each of <br />the wells were found to be dry as a result of declining groundwater levels <br />over the summer months. When groundwater samples become available from <br />the monitoring wells, barium and strontium will be added to the list of <br />constituents programmed for analys|s. This will provide an additional <br />safeguard against migration from the FMC - trench, <br />|f'you'have any questions regarding the contents of this monitoring report, <br />please call. We apologize for our failure to comply with the monitoring/ <br />reporting schedule established in our discharge requirements and will correct <br />this oversight with future reports. <br />Respectfully submitted, <br />BETA ASSOCIATES <br />Jack E. McCol!ough <br />JEM:'b <br />cc: Forward, Inc., Attn: Mr. Greg Basso <br />FMC Corp., Attn: Mr. Dale Buwlln <br />. <br />