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I <br /> N PAR <br />' N FRP <br /> Y Other(report name) Closure Summary Report- 13 September 2004 <br /> IY Well and boring logs <br /> 11 Y Best Available Technology(BAT)used or an explanation for not using BAT, <br />' Tanks removed,over-excavation <br /> 12 Y Reasons why"background"was/is unattainable using BAT, <br /> Analytes of concern were not detected in ground water samples collected from the monitoring well <br />' network during the ground water investigation Petroleum hydrocarbons remaining beneath the site <br /> appear to pose minimal risk to human health and beneficial use of ground water down-gradient from <br /> the site.Additionally drinking water at and near the site is supplied by the California Water Service <br /> 13 Y Mass balance calculation of substance treated versus that remaining, <br />' Approximately 4,477 pounds TPH-d remaining in soil <br /> 14 Y Assumptions, parameters, calculations and model used in risk assessments, and fate and transport modeling, <br /> I 15 Y Rationale why conditions remaining at site will not adversely impact water quality,health, or other beneficial <br /> uses, and <br /> 16 NIA WET or TCLP results <br /> lieComments <br /> I By <br /> Date <br /> I <br /> I <br /> • <br />