Laserfiche WebLink
f <br /> CHRONOLOGY <br /> Ron's Corral SITE CODE: 500074 <br /> 26485 N Thornton Road <br /> Thornton CA 95686 <br /> 6/2/93 Two 1000 gal underground storage tanks removed today. <br /> 6123/93 Removal report submitted to this agency. Analytical laboratory <br /> results of removal indicate some contamination present at the east <br /> end of the tank excavation. All Benzene results were ND at <br /> detection limits of .5 and .05 ppm. Results of pit water grab sample <br /> was ND for Benzene at detection of 3 ppb. <br /> 7/6/93 URF (UAR) #93-U36 and prop 65 #93-094 filed. / <br /> } <br /> 7/7/93 PHS/EHD issued notification that facility exceeds LUFT leaching <br /> potential based on 2300 ppb TPI-Ig in pit grabwater sample and <br /> less than 5 feet to groundwater. <br /> 11/12193 Notice of Reimbursement issued to RP <br /> 11/19/93 Installed 3 monitoring wells. Attempt at delimiting soil contamination <br /> by trenching in an east west and north south direction east of the <br /> former tank location. Over excavated 150 yds' of soil from beneath { <br /> the former UST's and dispenser island. <br /> s <br /> 8/18/94 PIER submitted by WKA for work completed on 11/99/93. Extent <br /> of soil contamination delimited. Additional assessment of <br /> groundwater recommended because wells installed north and east <br /> of the site have low levels of contamination. <br /> 2116-17/95 Hydropunch investigation conducted <br /> 5/4/95 Report of secondary investigation submitted to PHS/EHD. Results <br /> of investigation are inconclusive due to the presence of an <br /> unknown contaminant which causes the lab to raise detection <br /> limits. Benzene is ND at detection limits ranging from 15 ppb to .3 <br /> ppb <br /> 4/11195 SWRCB issued LOC <br /> AW <br />