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SIERRA LABORATORIES !NC <br /> ' Park Environmental Corporation Sierra Client Nm 10000-92 DateSampied 09/29/92 <br /> 2140 Professional Drive,Suite 130 Sierra Project No SP-310-92 Date Received. 10/0I/92 <br /> ' Roseville,California 95661 Client Project No 1125-11 Date Prepared. 10101-I0/06192 <br /> Client Project. Date Analyzed- 10/01-10/04/92 <br /> N/A i <br /> ' Sample Preparation. EPtL Method 3005 <br /> Sample Analysis EPA Method 7421 Report Date .10/09192 <br /> 1 <br /> ' Matrix/Spike Duplicate Report <br /> Sample Type Liquid <br /> ' Total Lead (Range) <br /> ' Matrix Spice 92 (75-125) <br /> Recovery(%) <br /> Matrix Spike Duplicate 93 (75 125) <br /> Recovery(%) <br /> ' Relative Percent 1 (0-20) <br /> Difference <br /> Quality Control Reference Lumber #55360 <br /> I <br />