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?i Laboratories, Inc. 4 1 <br />'6? Z 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334-5493 Mm. ?0- ".W.- <br />Mount Sneffels Mining Company, LLC ACZ Project ID: L79933 <br /> -_ <br />L79933-01 WG276474 Aluminum (1312) M6010B ICP RA Relative Percent Difference (RPD) was not used for data <br /> validation because the sample concentration is too low for <br /> accurate evaluation (< 1 Ox MDL). <br />WG276402 Aluminum, total (3050) M6010B ICP M3 The spike recovery value is unusable since the analyte <br /> concentration in the sample is disproportionate to the spike <br /> level. The recovery of the associated control sample (LCS <br /> or LFB) was acceptable. <br />WG276458 Antimony (1312) M6020 ICP-MS RA Relative Percent Difference (RPD) was not used for data <br /> validation because the sample concentration is too low for <br /> accurate evaluation (< 10x MDL). <br />WG276433 Antimony, total (3050) M6020 ICP-MS M2 Matrix spike recovery was low, the recovery of the <br /> associated control sample (LCS or LFB) was acceptable. <br />WG276458 Arsenic (1312) M6020 ICP-MS RA Relative Percent Difference (RPD) was not used for data <br /> validation because the sample concentration is too low for <br /> accurate evaluation (< 10x MDL). <br />WG276474 Barium (1312) M6010B ICP RA Relative Percent Difference (RPD) was not used for data <br /> validation because the sample concentration is too low for <br /> accurate evaluation (< 10x MDL). <br />WG276463 Barium, total (3050) M6010B ICP M3 The spike recovery value is unusable since the analyte <br /> concentration in the sample is disproportionate to the spike <br /> level. The recovery of the associated control sample (LCS <br /> or LFB) was acceptable. <br />WG276474 Beryllium (1312) M6010B ICP RA Relative Percent Difference (RPD) was not used for data <br /> validation because the sample concentration is too low for <br /> accurate evaluation (< 1Ox MDL). <br />WG276529 Cadmium (1312) M6010B ICP RA Relative Percent Difference (RPD) was not used for data <br /> validation because the sample concentration is too low for <br /> accurate evaluation (< 1 Ox MDL). <br /> Chromium (1312) M6010B ICP RA Relative Percent Difference (RPD) was not used for data <br /> validation because the sample concentration is too low for <br /> accurate evaluation (< 1 Ox MDL). <br />WG276402 Chromium, total (3050) M6010B ICP M1 Matrix spike recovery was high, the recovery of the <br /> associated control sample (LCS or LFB) was acceptable. <br /> M6010B ICP ZG The ICP Serial Dilution was not used for data validation <br /> because the sample concentration was less than 50 times <br /> the MDL. <br />WG276474 Cobalt (1312) M6010B ICP RA Relative Percent Difference (RPD) was not used for data <br /> validation because the sample concentration is too low for <br /> accurate evaluation (< 1Ox MDL). <br />WG276529 Copper (1312) M6010B ICP RA Relative Percent Difference (RPD) was not used for data <br /> validation because the sample concentration is too low for <br /> accurate evaluation (< 10x MDL). <br />WG276474 Iron (1312) M6010B ICP RA Relative Percent Difference (RPD) was not used for data <br /> validation because the sample concentration is too low for <br /> accurate evaluation (< 10x MDL). <br />WG276463 Iron, total (3050) M6010B ICP M3 The spike recovery value is unusable since the analyte <br /> concentration in the sample is disproportionate to the spike <br /> level. The recovery of the associated control sample (LCS <br /> or LFB) was acceptable. <br />WG276458 Lead (1312) M6020 ICP-MS RA Relative Percent Difference (RPD) was not used for data <br /> validation because the sample concentration is too low for <br /> accurate evaluation (< 1 Ox MDL). <br />WG276433 Lead, total (3050) M6020 ICP-MS MA Recovery for either the spike or spike duplicate was outside <br /> of the acceptance limits; the RPD was within the <br /> acceptance limits. <br />WG276474 Magnesium (1312) M6010B ICP ZG The ICP Serial Dilution was not used for data validation <br /> because the sample concentration was less than 50 times <br /> the MDL. <br />WG276529 Manganese (1312) M6010B ICP RA Relative Percent Difference (RPD) was not used for data <br /> validation because the sample concentration is too low for <br /> accurate evaluation (< 10x MDL). <br />WG276402 Manganese, total (3050) M6010B ICP M3 The spike recovery value is unusable since the analyte <br /> concentration in the sample is disproportionate to the spike <br /> level. The recovery of the associated control sample (LCS <br /> or LFB) was acceptable. <br /> M6010B ICP ZH Serial Dilution exceeded the acceptance criteria. Matrix <br /> interference [physical or chemical] is suspected. <br />REPAD.15.06.05.01 <br />Page 30 of 39