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TABLE rCONTINUED) ANALYTICAL RESULTS: GROUNDWATER MOORE PETROLEl1M 5491 F STREET, BANTA,CALIFORNIA (W rleslllts iln pot s-perinion) Monitoring Date Total Petroleum Hydrocarbons Aromatic Volatile Organics Well Collected Gasoline Diesel Motor Benzene Toluene Ethyl- J Total Oil benzene Xylenes MW-5 07/06/90 0.160 < 0.0076 < 0.0058 0.0017 07/06/90+ 0.150 < 0.0070 < 0.0059 0,0017 02/01/91* < < -_ < < < 04/23/91* < < --- < < < < 07/22/91- < 0.160 --- < < < < 10/21/91 0.11 0.22 «0.5 0.0025 < < < 01/17/92 < < -- < < < < 04/15/92 < < ___ < < < < 07/27/92 0.06 < --- < < < < 10/20/92 0.12** 0.28 --- < < < < 01/22/93 < < < < < < 04/09/93 < 0.61 --- 0.0008 < MW-6 < < < 07/06/90 < < --- < < < 02/01/91* < < ___ < ` 04/23/91* < < --- --- < < < 05/29/91 --- < < 07/22/91* < < --- < —10/21/91 < < «0.5 < < < < 01/17/92 < < < < < 04/16/92 < < ___ < < 07/27/92 < < __ < < < 10/20/92 < < --- < < < < 01/22/93 < 0.21 --- < < < < 04/09/93 < 0.07 — < < < < DW-1 01/22/93+ < < < < < < NOTES: + - Domestic well located at 5451 F Street. Not sampled/not analyzed. < - Below Practical Quantitation Reporting Umits(POL)per"Tri-Regional Board Staff Recommendations for Preliminary Evaluation and investigation of Underground Tank Sites"(August 10,1990). (PQL for BTEX-0.0005 ppm,TPH,as gasoline and diesel-0.05 ppm)or as Indicated In laboratory reports. - Below Indicated detection limit. Gasoline and diesel were reported as total purgeable petroleum hydrocarbons. - The positive result for petroleum hydrocarbon as gasoline appears to be due to the presence of heavier hydrocarbon rather than gasoline. FLH - Floating liquid hydrocarbons. The groundwater analytical results prior to February 1,1991,are summarized from work conducted by previous consultants. Aegis Environmental,inc. 90-099/June 17,1993