Laserfiche WebLink
rte'. <br /> i <br /> � u <br /> L' <br /> NtS rw�rly <br /> 1992 3rd Qtr Aativititn,Situ C'"1013 <br /> Cily of Slu:kt�n,Piro S1at3Pn Nu.6 <br /> sgtamber 22, 1992 <br /> Page 3 <br /> .5011, ItE1iMEIDIATION <br /> Excavation <br /> Pursuant to the approved 3unc 24, 1992 workplan, excavation of suspected diesel impacted soils <br /> ' Energy <br /> was initiated on August 3, 1992. The excava�l°1onnelr�ere presentk was rin alec�n ultinglcapacity. <br /> Associates using an excavator tractor. RESNA p' <br /> Excavated soils were field screened using a photoionisation detector (PID) to detect organic <br /> vapors. Die-el impacted soils were stockpiled and separated froill clean soils based l,poll PID <br /> measurements and field observations (color, o(lor, discoloration}, <br /> nsported and relocated to the City of Stockton Corporation <br /> Hydrocarbon impacted soils were tra <br /> Yard under the authorization of the PHSfEHD for tile intended <br /> teof oil wasroadbase <br /> cd toltht <br /> various City Planning projects. Approximately 450 yards <br /> Corporation Yard. l)ocullle"tation of soil volume_ delivered to the yard is contained in <br /> Attachment 1. <br /> Public utilities (water, sewer, gas, electrical) were temporarily rerouted or tsrned off to allow <br /> excavation activities to Occur. Utility services were restored upon completion of the field work. <br /> CotiHrmation Sampling <br /> On August 7, 1992, five confirmation soil samples were collected from the excavation under the <br /> regulatory guidance of Linda Turkatte of PHSIEHD samples <br /> Two `verify collected <br /> excavation floor and four from tin; sidewalls at appropriate depths to sorce removal <br /> Samples were collected from the bucket of the excavator. Sample locations are shown in Figure <br /> 3. <br /> The samples were placed on ice, labelled, and transported under chain-of-custody protocol to <br /> RESNA's State-certified Environmental Laboratory. Samples were analyzed for benzene, <br /> toluene, ethylbenzene, xylenes (BTEX) and total petroleum by rocaanaly o were detectedns as l (Tin any <br /> utilizing EPA methods 8020 and modified 8015, respec y <br /> sample. Analytical results are summarized in Table 3. Laboratory reports and chain-of-custody <br /> documentation is included in Attachment 2. <br /> QUARTLYWk090192,PRF <br />