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Figure 5: <br /> Graph showing concentrations of chloroform <br /> at the All Pure Chemical, Tracy Facility(4/91 - 8/94) <br /> (Data from APC Quarterly Monitoring Reports, RESNA) <br /> 3000 2600 ugn <br /> 2500 <br /> E <br /> 0 <br /> 0 2000 <br /> `o O MW-1 <br /> r � <br /> _ ■MW-2 <br /> _ 1500 ■MW-3 <br /> ° <br /> 0 ■MW-4 <br /> o <br /> a <br /> c <br /> 1000 <br /> c <br /> 0 <br /> 500 <br /> MCL= 100 <br /> - _ . - - - - - - - - - - - - - - - - - - - - - - --- - - -- - - - -- - - - - - -- - - - --- <br /> Jul. 91 Jan. 92 Jul. 92 Mar. 93 Aug. 93 Mar. 94 Aug. 94 <br /> Sampling period <br /> Tracy Well Survey <br />