Laserfiche WebLink
1 <br /> G. Gasoline Analysis <br /> ' Beginning March 4, 1988, samples of product have <br /> been regularly collected from test pits and wells. <br /> Daily sample collection from wells T3 , T4, T8, Til, <br /> ' T12, SP2 and SP3 began on March 8 . Samples have <br /> been tested for API gravity in the field then <br /> stored. Selected samples have been subjected to <br /> ' laboratory analysis for hydrocarbon characterization <br /> (by gas chromatograph) and lead, sulfur and gum <br /> ' content. Individual laboratory reports are <br /> presented in Appendix H. <br /> All samples have been identified as gasoline, <br /> ' although several have also shown indications of a <br /> small amount (less than 10%) of diesel fuel. API <br /> gravity measurements show a decreasing trend, <br /> ' indicative of weathering (Table 2) . <br /> On March 4, samples of gasoline from wells T4 , Tll <br /> and T12 had lead levels characteristic of unleaded <br /> ' gasoline (less than 0. 05 gm/gallon or 13 .2 mg/1) . A <br /> sample from T3 on March 4 had a much higher level, <br /> ' indicative of leaded gasoline. Samples from T3 , T11 <br /> and T12 on March 18 all had lead levels indicative <br /> of leaded gasoline. The lead concentrations are in <br /> ' the range that would be expected from "recent <br /> vintage" leaded gasoline, subsequent to the January <br /> ' 1, 1986 0. 1 gram/gallon (26.4 mg/1) lead limitation. <br /> ' - 16 - <br />