ARCHIVED REPORTS_XR0011312 - Laserfiche WebLink

Home Browse Search

TABLE KEY ABBREVIATIONS/SYMBOLS LPH — liquid-phase hydrocarbons µg/1 = micrograms per liter mg/l = milligrams per liter ND = not detected at or above laboratory detection limit DTSC = Department of Toxic Substances Control NIA = not applicable Trace = less than 0.01 foot of LPH in well USTs = underground storage tanks -- not analyzed,measured, or collected TPH-G = total petroleum hydrocarbons with gasoline distinction BTEX =` benzene, toluene, ethylbenzene, and total xylenes TPH-D = total petroleum hydrocarbons with diesel distinction TRPH = total recoverable petroleum hydrocarbons MTBE = methyl tertiary butyl ether TAME T tertiary amyl methyl ether ETBE = ethyl tertiary butyl ether DIPE = di-isopropyl ether TBA = tertiary butyl alcohol -N 1,1-DCA = 1,1-Dichloroethane 1,2-DCA = 1,2-Dichloroethane 1,1-DCE = 1,1-Dichloroethene 1,2-DCE = cis- and trans-l,2-Dichloroethene PCE = tetrachloroethene TCA = trichloroethane TCE = trichloroethene PCB = polychlorinated biphenyls TPPH = total purgeable petroleum hydrocarbons NOTES Elevations are in feet above mean sea level. Groundwater elevation for wells with LPH is calculated as follows: Surface elevation—depth to water+(0.75 x LPH thickness). Concentration Graphs have been modified to plot non-detect results at the reporting limit stated in the official laboratory report. All non-detect results prior to the Second Quarter 2000 were plotted at 0.1 pg/l for graphical display. J=estimated concentration,value is between the Method Detection Limit (MDL)and the Practical Quantitation Limit(PQL) :s REFERENCE TRC began groundwater monitoring and sampling activities in October 2003. Historical data for Fortner BP Oil 11195 was provided by Gettler-Ryan Inc., Dublin, California, in an excel table received in September 2003.