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Former Manna Pro Site Page 6 <br /> Quarterly Groundwater Monitoring Report <br />' Project No 207 2 <br /> 12 November 1999 <br />' in June of this year While the bearing of groundwater flow remains generally <br /> consistent, the current depiction of the groundwater surface as shown in Figure <br />' 3, is substantially different than prior maps prepared by other companies This <br /> difference is primarily attributable to the adjustments in the recorded horizontal <br /> and vertical positions of the well which are reflective of the recently completed <br /> 1 survey (see Appendix Q Generally, the direction of groundwater flow is to the <br /> north east, which is also consistent with the direction observed in the Cutter <br /> Lumber site which is adjacent to the north It also appears that there is an area <br /> 1 centered near MW-3 with a substantial depression in the groundwater surface <br /> The bottom of the depression appears to be about 6 inches lower than the <br /> regional trend would normally suggest <br /> Based on the field data obtained in this monitoring event, the overall <br /> groundwater gradient and bearing of flow as determined in a 3-point calculation <br /> rfrom wells MW-4, MW-8 and MW-9 is 0 0032 ft/ft on a bearing of N56oE This <br /> compares favorably with the gradient calculated for the Cutter Lumber site on 5 <br />' October, 1999 which was N480E at 0 0046 ft/ft <br /> 3.4 Waste Disposal <br /> The purge water which was temporarily stored in DOT approved drums on the <br /> site will be removed for recycling prior to the next monitoring by American <br /> Valley Waste Oil, a licensed hazardous water hauler <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> • <br /> 1 2937 Veneman Ave,#11240 Geo-Phase Environmental Inc Phone (209) 569-0293 <br /> Modesto, CA 95356 Fax (209) 569-0293 <br /> 1 <br />