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Table 4, continued <br /> Analytical Results of Groundwater Samples Acquired <br /> from Monitoring Wells MW-1 ,' MW-2 , ,.and MW-3 at <br /> 275 Grant Line Road, Tracy, CA <br /> Sample Date <br /> & Depth to TPH-D TPH-G B T E X TOG <br /> Water ( ft ) (.ppb) (ppb) (ppb). (ppm) <br /> ---------------------------------------------------- ------ <br /> MW-3 <br /> 06/23/94 N. D. N.D. N . D. N. D. N . D. N.'D. N.A. <br /> 7 . 65 ' <br /> -------------------------- <br /> Meth.od <br /> Detection 50 50 0 . 5 0 . 5 0 . 5 0 . 5 0 . 5 <br /> Limit <br /> - ------------------------------------------------------------ <br /> TPH-'D . . . Total Petroleum Hydrocarbons as Diesel <br /> TPH-G. . . Total Petroleum Hydrocarbons as Gasoline. <br /> TOG. . . Total Oil and Grease <br /> BTEX. . . Benzene, toluene, ethylbenzene, total xylenes <br /> ppm. . . Parts per million <br /> ppb. . . Parts .per. billion (1 ppm = 1 , 000 'ppb) <br /> N . D . . . . Not detected <br /> N.A. . . . No analysis performed <br /> SUMMARY OF OTHER ENVIRONMENTAL ACTIVITIES PERFORMED DURING <br /> THE PAST QUARTER <br /> The direction of groundwater flow and hydraulic gradient <br /> -have been calculated. for the June, 1994. sampling 'event . <br /> ;Groundwater continues to flow to thenortheast . Infor- <br /> mation regarding the methodology used to determine the <br /> direction of flow and -hydraulic gradient is presented in <br /> Appendix B . <br /> ENVIRONMENTAL COMPLIANCE ACTIVITIES SCHEDULED FOR THE NEXT <br /> DARTER <br /> EPM will complete the Problem Statement requested by <br /> PHS/EHD . Placement of the interim remediation system <br /> disc <br /> ribed to PHS/EHD will be postponed until PHS comments <br /> upon the Problem' Statement document . <br /> EPM has spoken with Mr . Michael Infurna, PHS/EHD Inspector <br /> for the Pestana Trust property at 2360 East Street , Tracy <br /> about moving the 40 cubic. yards of soil excavated at 275 <br /> Page 9 <br />