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TABLE 2 (continued) <br /> ANALYTICAL RESULTS OF WATER SAMPLES <br /> Lockeford Beacon <br /> (99/L) <br /> Well TPH as Ethyl- <br /> ID Date Gasoline Benzene Toluene benzene Xylene <br /> MW-3 5-4-94 ND ND ND ND ND <br /> MW-4 6-16-87 711* 20 5 2 1.2 4.1 <br /> 10-7-87 10 7* ND ND ND ND <br /> 4-27-88 20 ND 0 6 ND ND <br /> 7-26-88 ND 06 ND ND ND <br /> 8-2-89 ND ND ND ND ND <br /> 4-16-91 ND ND ND ND ND <br /> 1-26-94 ND ND ND ND ND <br /> 5-4-94 ND ND ND ND ND <br /> MW-5 1-26-94 ND ND 0.77 ND ND <br /> 5-4-94 ND ND ND ND ND <br /> MW-6 1-26-94 ND 27 ND ND 18 <br /> 5-4-94 ND ND ND ND ND <br /> pg/j_ = parts per billroa(ppb) ° Repotted as"Total Volatile Hydrocarbons(modified EPA Method 8015) <br /> ND = None Detected <br /> 5.0 CONCLUSIONS & RECOMMENDATIONS <br /> Low concentrations of petroleum hydrocarbons were detected in water samples from MW- <br /> 2, MW-5 and MW-6 in January 1994. However, in May 1994, petroleum hydrocarbons were <br /> detected only in samples from MW-2 <br /> Impacted groundwater at the site appears to be limited to the area near MW-2 GeoAudit <br /> P <br /> recommends that all wells be re-sampled in August 1994 During stabilization, additional <br /> water should be removed from MW-2. If impacted groundwater ;n the area of MW-2 is <br /> limited, an "extended purge may remove petroleum hydrocarbons to acceptable residual <br /> levels The well should be sampled after approximately 50 gallons of water is removed (if <br /> possible) <br /> 6.0 LIMITATIONS <br /> Our professional services were performed using that degree of care and skull ordinarily <br /> exercised by environmental consultants practicing in this or similar localities The findings <br /> 0-1-r-1 A-&Seiv,oes,1— 9 <br /> t�.ro.a a..w-Q>zvs-,,walls <br />