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' The ICP-AES analysis performed on the liquid media (filtrate) indicated a <br /> low solubility for nine out of the ten constituents (refer to Table 7-2 and Page <br /> ' 2 of the Halliburton Project Report in Appendix Q. The low solubility for <br /> barium would suggest that a portion of barium present is in the form of barite <br /> (barium sulfate). Also, the low solubility for chromium would suggest that the <br /> ' highly soluble chromium IV form is not a concern. Only selenium indicated <br /> a high solubility based on the filtrate results. Because the solid medium <br /> contained a low concentration of selenium, it appears that the 77.7 mg/L <br /> (ppm) in the filtrate may be a result of outside sources such as the on-site <br /> water supply. <br /> ' Fish bioassay data and other chemical and physical properties data furnished <br /> by Pozzolanic, along with the Material Safety Data Sheet (MSDS) for bulk <br /> Pozmix® A are presented under Appendix E. <br /> 8.0 SURFACE RESTORATION AND DISPOSAL OF GROUT SPOIL <br /> The pavement surface in the locations of abandoned Wells MW-1,3,4,5 and 6 were restored <br /> by repaving with an asphalt cold-patch mix as shown in Photograph #27, Figure 6. The <br /> ' surface around abandoned Monitoring Well MW-2 was backfilled with clean site excavation <br /> because this well was located within a landscape area. <br /> The pavement and excavation materials removed from the locations MW-1, 3, 4, 5 and 6 <br /> along with grout spoils were hauled off site and disposed as re-cycled construction debris <br /> at the Cal Waste Facility in Lodi, California. <br /> 9.0 LIMITATIONS <br /> The abandonment of the six groundwater monitoring wells at 1200 East Victor Road in <br /> ' Lodi, California was completed in general accordance with the BSK Work Plan approved <br /> and permitted by SJPHS on May 28, 1992.. <br /> The data reported herein is intended for the exclusive information of Overhead Door <br /> Corporations, SJPHS and RWQCB. Accordingly, any other user of this report agrees that <br /> BSK, its subsidiary, and subcontractors shall not be liable for any loss or damage regardless <br /> ' of cause resulting from the use of the data reported herein. <br /> Our services are based on sound well abandonment practices of the industry and for the <br /> local area of practice. No other warranty, expressed or implied is made. <br /> 17 � <br /> &Associates <br />