Laserfiche WebLink
i <br /> amec <br /> TABLE A-3 <br /> SUMMARY OF GROUNDWATER SAMPLE ANALYTICAL RESULTS — TPH and VOCs ' <br /> TRACY RAIL YARD SOUTHERN BOUNDARY <br /> Tracy Rail Yard Off Site South Area <br /> Tracy , California <br /> Results reported in micrograms per liter ( p /L <br /> Sam le TPH VOCs <br /> Groundwater Sample <br /> Boring Sample Depth Interval <br /> ID Name Date (feet bgs ) TPH " TPHd TPHd w/Silica Gel TPHmo Benzene Ethylbenzene Toluene Xylene (Total ) Other VOCs <br /> TRY- 18 TRY- 18 08/ 12/2009 20-24 -- < 100 -- -- <br /> <0 . 5 < 1 . 0 < 1 . 0 < 1 . 0 -- <br /> TRY-28 TRY-28 103/08/20101 17-22 -- 120 J < 100 -- < 0 . 5 < 1 . 0 < 1 . 0 < 1 . 0 -- <br /> Notes <br /> 1 . Analytical results for the 2005 and 2008 samples were compiled from tables presented in previous consultants' reports . AMEC Geomatrix, Inc. did not independently review laboratory data sheets . <br /> Samples collected by AMEC Geomatrix, Inc. , in 2009 and 2010 were analyzed by Lancaster Laboratories , Inc . , of Lancaster, Pennsylvania , for TPHd and TPI-Imo using U . S . Environmental Protection <br /> Agency ( U . S . EPA) Method 8015 ; and for BTEX using U . S . EPA Method 82606 . Detected anylytes are shown in bold face-type . <br /> 2 . Laboratory notation : "Samples contain hydrocarbons within the diesel/motor oil range that do not match the diesel/motor oil pattern . " <br /> Abbreviations <br /> -- = not analyzed <br /> < = analyte was not detected at or above the laboratory reporting limit indicated <br /> BTEX = benzene , toulene , ethylbenzene , and xylenes <br /> duplicate = duplicate sample results <br /> bgs = below ground surface <br /> J = target analyte was positively identified ; the associated numerical value is the approximate concentration of analyte in the sample <br /> ND = not detected ; reporting limits vary <br /> R = data rejected due to quality assurance/quality control issues <br /> TPH = total petroleum hydrocarbons <br /> TPI-Id = total petroleum hydrocarbons quantified as diesel <br /> TPI-Ig = total petroleum hydrocarbons quantified as gasoline <br /> TPI-Imo = total petroleum hydrocarbons quantified as motor oil <br /> VOCs = volatile organic compounds <br /> AMEC Geomatrix , Inc . <br /> Page 2 of 2 <br /> X:\16000s\161140\4000 REGULATORY\South_WP_071211 \4 Apnd A\Tbl A-3_GW_TPHBTEX_PAHs.x1sx <br />