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CHRONOLOGY <br /> See prior reportsfor priod from 03/31/92 to 12/01/92 x <br /> 12/01/92 <br /> r <br /> Collect influent ' and effluent samples of theI system fors:� <br /> analysis at WEGE laboratory. Flow rate 87 cfm.: ' t - <br /> Drain water from vapor lines . ` G <br /> i 12/07/92 <br /> Collect influent and effluent samples of th'e° system for .', <br /> analysis at WEGE laboratory. Flow rate 87 cfm., `' <br /> 5 Drain water from vapor lines . <br /> 12/09/92 <br /> Collect influent and effluent samples of the system, and vapor <br /> samples from -VSB3 , VSB5, VSB9, VSB11 and MW5 °for analysis atf <br /> Il WEGE laboratory. Flow rate 72 cfm. <br /> Drain water from vapor lines . Change out. carboh'icanisters. <br /> 01/13/93 <br /> Collect influent and effluent samples of the system, and vapor <br /> samples from VSB3,'• VSB5, VSB9, VS211 and MW5 for analysis at4 <br /> WEGE laboratory. Flow rate 85 . 39cfm. <br /> Drain water from vapor lines. Change out carbon; canisters . . F <br /> 02/23/93 " l <br /> Collect influent and effluent samples of thesystem, and vapor <br /> samples from VSB3 , VSB5, VSB9, VSB11 and MW5 for analysis at'! a <br /> WEGE laboratory. Flow rate 94 .21cfm. Add carbon canister. <br /> 03/15/93 I, <br /> I' Collect influent and effluent samples of the! system, and E <br /> vapor samples from VSB3 , VSB5, VSB9, and MW5 far analysis at 'i } <br /> WEGE laboratory. Flow rate 89 . 73 cfm. Add carbon canister. Jr <br /> f <br /> 4 <br /> t <br /> 1 . <br /> page 2 of R604 , 04/07/93 <br /> I� is f <br /> ' t <br />