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2.0 QUARTERLY MONITORING <br /> tAs per Cleanup and Abatement Order No. 90-702 , SUN TECH <br /> sampled seven monitoring wells on March 26, 1992, located on, <br /> or within, the vicinity of the GLDM property located at 16 <br />' Cherokee Lane, Lodi , California. <br /> The groundwater samples were analyzed by a California certified <br /> laboratory (Sherwood Labs Corp. ) using EPA method 602 for BTEX <br /> I analysis, with a detection limit of 0. 3 ug/Kg, and EPA method <br /> 5030/Mod. 8015 for TPH-Gasoline analysis, with a detection limit <br /> of 50. 0 ug/L. (See Table 8 and Appendix C) . <br />' TABLE 8 <br /> GROUNDWATER SAMPLE ANALYSES <br /> (3-26-92 ) <br /> SAMPLE LOCATION/CONCENTRATION <br /> MW-4 MW-6 MW-7 MW-10 MW-11 MW-12 MW-13 BLANK <br />' (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) <br /> B 4475 .0 ND ND ND ND ND ND ND <br /> T 3650 .0 ND ND ND ND ND ND ND <br />' E 650 .0 ND ND ND ND ND ND ND <br /> X 1975.0- ND ND ND ND ND ND ND <br /> TPH-G 56000. 0 ND ND 65 . 0 ND ND ND ND <br /> I <br /> NOTE: ND Represents none detected <br /> 3.0 GROUNDWATER FLOW DIRECTION <br /> Site groundwater elevations and flow direction were <br /> determined based on water level measurements taken from seven <br />' monitoring wells located on or within the vicinity of the <br /> subject property, March 26, 1992 (Table 9 ) . Monitoring well <br /> 3 was clogged with debris , and therefore a measurement was <br /> not taken. <br /> Based on these measurements, the groundwater flow direction <br /> was determined to be in a Southeasterly direction. A Kriging <br /> program was used to' generate a groundwater flow direction <br /> map, which has been included as Figure 3 . <br /> I <br /> E <br /> STE Project No. 4001 <br /> Page 6 <br /> I <br />