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i <br /> Third Quarter 2001 Groundwater Monitoring Report <br /> Moore Petroleum Bulk Plant,5491 F Street,Banta,California <br /> ' Page 5 <br /> Analytical results are summarized in Table 2. Figures 4 through 9 are isoconcentration maps for <br /> TPHg, TPHd, TPH kerosene, TPH motor oil, sum of oxygenates, and naphthalene, respectively. <br /> The laboratory analytical reports and chain-of-custody forms are included in Appendix C. <br /> All purged and recovered liquids are stored temporarily on site in Department of Transportation- <br /> approved, 55-gallon drums pending removal from the site by a licensed hauler to an appropriate <br /> disposal facility. <br /> CONCLUSIONS AND RECOMMENDATIONS <br /> Groundwater analytical results indicate shallow groundwater beneath the site has been impacted <br /> by petroleum hydrocarbons. The domestic well remains non-detect for all analyzed constituents. <br /> • MW-1: Motor Oil, MTBE, TAME, and TBA were detected this quarter. Motor oil <br /> was a historic high for this location. <br /> • MW-2: Continues to be below detection limits except for the first detection of motor <br /> oil at 610 micrograms per liter(ug/L). <br /> • n-detect and MTBE was detected at 19 ug/L this <br /> MW-3: Motor oil decreased to no <br /> quarter. All other constituents were non-detect. <br /> MW-4A: All analyzed constituents were below detection limits except for MTBE, <br /> which was detected at 62 ug/L. <br /> • MW-5: All analyzed constituents were below detection limits except for motor oil, <br /> which was detected for the first time at 1,000 ug/L. <br /> MTE was <br /> • MW-7: TPHg and TPHd were again present within historical <br /> eo Was detected at 8B2 ug/L <br /> ges <br /> detected for the first time at this location. Naphtha <br /> confirming the TPHd detection. <br /> • <br /> oto oil, TPH kerosene, MTBE, and TBA were detected this <br /> MW-8: TPHg, TPH m <br /> event. TPH kerosene was detected for the first time at 1,900 ug/L and TPH motor oil <br /> and TBA were historic highs. <br /> • MW-9: TPHg and TPH kerosene were detected this quarter. TPH kerosene was <br /> detected for the first time at 480 ug/L. <br /> • MW-10: TPHg and TPHd were detected this quarter. MTBE remains below detection <br /> limits for the second quarter in a row. <br /> 1 <br />