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QC Batch ID: MP4494 <br />Matrix Type: AQUEOUS <br />Prep Date: <br />BLANK RESULTS SUMMARY <br />Part 2 - Method Blanks <br />Login Number: D22645 <br />Account: CONCECOK - Contour Consulting Engineering <br />Project: GCC <br />04/18/11 <br />Methods. EPA 200.8 <br />Units: ug /1 <br />MB <br />Metal RL IDL MDL raw final <br />Aluminum 50 .28 5.7 <br />Antimony 0 40 .002 .059 0.0020 <0.40 <br />Arsenic 0.80 .098 .31 0.55 <0.80 <br />Barium 2.0 .007 .18 <br />Beryllium 0.20 .015 .032 <br />Boron 40 1.9 1.5 <br />Cadmium 0.10 .045 .053 - 0.095 <0.10 <br />Calcium 400 3.6 15 <br />Chromium 2.0 .041 .16 <br />Cobalt 0.20 .0065 .02 <br />Copper 2.0 .021 .36 0.35 <2.0 <br />Iron 40 1.6 9.8 <br />Lead 0.50 .0024 .039 - 0.0080 <0.50 <br />Magnesium 100 .13 6.4 <br />Manganese 1.0 .014 .12 <br />Molybdenum 1.0 .0087 .018 <br />Nickel 2.0 .0057 .042 <br />Phosphorus 60 3.6 2.9 <br />Potassium 200 4 5.3 <br />Selenium 0.40 .15 .096 0.23 <0.40 <br />Silver 0.10 .0016 .0017 - 0.0010 <0.10 <br />Sodium 500 1.6 12 <br />Strontium 20 .0079 .095 <br />Thallium 0.20 .029 .01 - 0.0050 <0.20 <br />Tin 10 .012 .12 <br />Titanium 2.0 .069 .2 <br />Uranium 0 20 .00076 .0031 <br />Vanadium 1.0 .1 .64 <br />Zinc 10 .077 .67 <br />Associated samples MP4494: D22645 -1FA, D22645 -2FA, D22645 -3FA, D22645 -4FA, D22645 -5FA <br />Results < IDL are shown as zero for calculation purposes <br />( *) Outside of QC limits <br />(anr) Analyte not requested <br />Page 1 <br />48 of 68 <br />• ▪ AGGu <br />022645 <br />