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Analyte <br />Method <br />Units <br />MW -002 <br />MW -003 <br />MW -004 <br />DUP -01 <br />RADIOCHEMISTRY <br />Gross Alpha <br />SM 7110B <br />pCi /L <br />110 +/- 10 <br />23 +/- 2 <br />12 +/- <br />10 <br />91 +/- 6 <br />Gross Beta <br />SM 7110B <br />pCi /L <br />56 +/- 3 <br />4.5 +/- 1.4 <br />44 +/- <br />3 <br />41 +/- 4 <br />Radium 226 ** <br />SM 7500 Ra -B <br />pCi /L <br />3.4 +/- 1.1 <br />2.3 +/- 0.8 <br />2.5 +/- <br />1.0 <br />5.6 +/- 1.4 <br />Radium 228 ** <br />EPA Ra -05 <br />pCi /L <br />3.9 +/- 1 <br />0.3 +/ -0.7 <br />3.6 +/- <br />1.0 <br />2.5 +/- 0.9 <br />Total Solids <br />EPA 160.3 <br />mg /L <br />4,850 <br />2,520 <br />4,420 <br />4,800 <br />FIELD PARAMETERS <br />pH <br />Probe <br />pH <br />7.40 <br />7.28 <br />7.38 <br />-- <br />Conductivity <br />Probe <br />us /Cm <br />1,837 <br />2,410 <br />2,130 <br />-- <br />Temperature <br />Probe <br />°C <br />10.8 <br />10.2 <br />9.4 <br />-- <br />Table 1. Result of Quarterly Monitoring, GCC Rio Grande, Inc., Pueblo Cement Plant. Sampling conducted April 13, 2011. — <br />Continued <br />** DRMS Numeric Standards for Radium 226 and Radium 228 are 23.5 pCi /L and pCi /L mg /L, respectively. <br />Notes — Analyses performed by Accutest Laboratory (Formerly Evergreen Analytical). Radiochemistry sub - contracted to Hazen <br />Research. <br />Shaded cells indicate exceedance for gross alpha (15 pCi /1) or combined radium 226 +228 (5 pCi /L) groundwater standards. <br />NA = Not Analyzed <br />pCi /L = picoCuries per liter, mg /L = milligrams per liter, meq /L = milli - equivalents per liter <br />us /Cm = microsiemens per centimeter <br />DUP -01 = Blind duplicate of primary groundwater sample MW -002 <br />3 of 3 <br />