1625 BROADWAY 2016-01-01 MF Import

� ------ — -- --- ---- -- �� KLEINFF.LDER � 2.4 UNDERGROUND STORAGE TANK CLOSURE REPORT BY KA11`E ENVIRONr1ENTAL (lYOVE114I3ER 2000) � The UST closure repori contained infonnatis7 associated with the removal of t��o inactive USTs, a concrete sump, a limiled vohmie of pclroleum-impacled soil and a�i abandoned steel pipe. � Informatiot�presented in the repori pertaining to these activities is brief]y sununarized belo�v. 2.4.1 UST Tairk Closrtres: On Oclober 27, 2000, American Distributing removed an inacti�•e j500-gallon I�eating fuel UST and an inaclive 1,685-gallon heating fuel UST from the subjcct properiy. A4r. Kane was on-site during tl�e UST rcmavals to observr,d the condition of the USTs � and collect the appropriate numUer of post-excavation soil samples. Mr. Kanc reporied that no e:idence of holes, ]cakage or spillage associated with the inactive USTs �vas observed. One � post-excavation soil sample was collected from the UST excavation bencaili Qie base oE each UST. Each soil sample was analyzed for total petroleum hydrocarbons (TPH) as diesel and heating fuel by Ecology method NMTPH-Ux. No evidcnce oF'1'PH was detccicd in the UST � post-escavation soil samples. � 1.4.1 Concrele Srurq� Renro��nl: 1�4r. Kane reporicd the .presence of a concrete sun:p in the floor of the fom�er boiler room of tlte Manufacturing Building (Figure 3). A sludge samplc � collected from die sump detected the presence of elevated levels of TPH (as heavy oil}, siodda,d solvents, and/or mineral spirits. T7ie sludge satnple was also analyzed for volatile organic compounds (VOCs? by EPA Method 8260. Gvidence of elevated VOCs concentrations ��:�.; � detected. One soi.' sa�nple ��as also collected from shallow soil adjacent to the sump and a second soil sample beneath a horizontal pipe near the sump. No evidence of TPH (as heavy oil), � stoddazd solvents, andior mineral spirits �vas detected in these samples. Based on thc elevated TPH a��d VOCs levels associated with the sludge material in the concmle sump, �merald � Service; �u�s contracted to remove the sludge from the concrcte slump for oiT'site disposal. Subsequently, die ccncrete sump and soil beneath the sump to a depd� of approsimately ]0 feet I bgs �vas removed and transporied offsite for disposal. Kane Cnviromncntal reported that a total of 13 tons of excavated soil in the vicinity of thc concrete sump ��as transporied offsite to TPS Teclmologies for them�al desorption. Pollowing removal of the suspected impacted soil beneath Ithe sump, D�Ir. Kane collected one post-excavation soil sa�nple at 10 feet bgs for anal}nica] test�ng. Analytical results ii�dicated no detectable concentrations of TPH. No additional post- � excavation soil samples were performed for VOCs. i 2.4.3 H��drar�lic Oi1-Lnpacled Sor! auri Prpe Remaral: On October ?6, 2000, n4r. Kane � obsen�ed evidence of petroleunrstained soil on the southeast comer of the subject property. The I43360'SFA4R0.76.doc pagc 3 of I i ^ Cop�righl?GU4}Jeinfcldcr Inc. `J �