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Ms. Jeanne Zolezzi <br /> April 12, 1996 <br /> Page 4 of 4 <br /> J <br /> Recommendations <br /> Because there is no evidence that operations on the property have contributed to the poor , <br /> re conal water <br /> qty <br /> uali and there are no increasing or decreasing, trends in the well chemistry { <br /> data in over five years of monitoring additional well sampling is unlikely to further our <br /> understanding of the site. Given the discontinuation of(pickling operations and the fact that f <br /> this portion of Stockton is not a rainwater recharge area it is unlikely that the salt present <br /> in the shallow low permeablility soils will migrate. Additionally, since these wells could <br /> potentially serve as conduits for the introduction of contaminants to the shallow Groundwater { <br /> zone it is.recommended that wells MW-6, MW-7 andIMW-8 be abandoned. <br /> I <br /> Considering the total time operations occurred oril site (since 1977) any significant <br /> mobilization of salt in the soils would probably already!il have occurred. Current operations <br /> are unlikely to have any impact on salt migration. While covering of the site with an asphalt <br /> surface would provide an additional measure of protection it is not critical at this time. A <br /> more important consideration would be the development of a drainage plan which prevents <br /> off-site runoff from coming onto the site, particularlyfrom the adjacent Londen Produce <br /> operation. No other special considerations should' be required other than standard <br /> prevention of repeated flooding or creating prolonged II standing water conditions. <br /> If you would like to discuss this site or any specific recommendations please contact me at <br /> your convenience. <br /> Respectfully, <br /> 'i <br /> Russell W. Juncal <br /> CA Registered Geologist no. 3864 <br /> CA Certified Hydrogeologist no. 171 <br /> Attachments I-IV <br /> RWJ/lkl <br /> { <br /> f <br /> I <br /> I <br />