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04/20/R0 <br />18'44 <br />$415 783 1512 <br />TRACE <br />ANALYSIS01i <br />Trace Analysis <br />Laboratory, Inc. <br />LOG NO.: <br />8512 <br />DATE <br />SAMPLED: <br />3/30/90 <br />DATE <br />RECEIVED: <br />3/30/90 <br />i <br />DATE <br />EXTRACTED: <br />4/4/90, 4/10/90 <br />and <br />4/11/90 <br />DATE <br />ANALYZED: <br />4/10/90, 4/11/90, and 4/12/90 <br />DATE <br />REPORTED: <br />4/18/90 <br />PAGE: <br />Thirty <br />Sample <br />Type,: Soi <br />3871 <br />30 <br />2 <br />3873 <br />Method and <br />Concen- <br />Detection Concen- <br />Detection <br />Concen- <br />Detection ; <br />Constituent <br />Units <br />Jjion <br />Limit <br />IT <br />Limit Limit <br />tration <br />Ljmii . <br />EPA Method <br />7420: <br />Lead <br />ug/kg <br />< 4,000 <br />4,000 <br />< 4,000 <br />4,000 <br />< 4,000 <br />4,000 <br />EPA Method <br />7471: <br />Mercury <br />ug/kg <br />21 <br />20 <br />< 20 <br />20 <br />< 20 <br />20 <br />EPA Method <br />7520: <br />Nickel <br />ug/kg <br />4,200- <br />4,000 <br />4,200 <br />4,000 <br />< 4,000 <br />4,000 <br />EPA Method <br />7741: <br />Selenium <br />ug/kg <br />140 <br />50 <br />610 <br />50 <br />410 <br />50 <br />EPA Method <br />7760: <br />Silver <br />ug/kg <br />< 2,000 <br />2,000 <br />< 2,000 <br />2,000 __._ <br /><,2•1000, <br />2,000 <br />EPA Method <br />7841: <br />' <br />Thallium <br />ug/kg <br />< 50 <br />50 <br />< 50 <br />50 <br />< 50 <br />50 <br />EPA Method <br />7950: <br />Zinc <br />ug/kg <br />23,000 <br />700 <br />26,000 <br />700 <br />25,000-, <br />700 <br />