2008-04-23_GENERAL DOCUMENTS - M1977247 (2)

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• • ACZ Laboratories, Inc. 410 2773 Downhill Drive Steamboat Springs, CO 80487 (800) 334 -5493 Matheson Mining Consultants ACZ ID WORKNUM _ PARAMETER METHOD QUAL DESCRIPTION MA Recovery for either the spike or spike duplicate was outside of the acceptance limits; the RPD was within the acceptance limits. RA Relative Percent Difference (RPD) was not used for data validation because the sample concentration is too low for accurate evaluation (< 10x MDL). M2 Matrix spike recovery was low, the recovery of the associated control sample (LCS or LFB) was acceptable. 325.2 / SM4500CI -E RA Relative Percent Difference (RPD) was not used for data validation because the sample concentration is too low for accurate evaluation (< 10x MDL). WG241669 Coliforms, fecal SM9222D - Membrane Filter HE Analysis performed past holding time. Method holding time is less than or equal to 7 days and sample was received with less than half of the holding time remaining (refer to item C5 of ACZ's Terms & Conditions). WG241971 Fluoride SM4500F -C RA Relative Percent Difference (RPD) was not used for data validation because the sample concentration is too low for accurate evaluation (< 10x MDL). WG241702 Nitrate /Nitrite as N, dissolved M353.2 - Automated Cadmium RA Relative Percent Difference (RPD) was not used for data Reduction validation because the sample concentration is too low for accurate evaluation (< 10x MDL). Nitrite as N, dissolved M353.2 - Automated Cadmium RA Relative Percent Difference (RPD) was not used for data Reduction validation because the sample concentration is too low for accurate evaluation (< 10x MDL). WG242032 Nitrogen, ammonia M350.1 - Automated Phenate RA Relative Percent Difference (RPD) was not used for data validation because the sample concentration is too low for accurate evaluation (< 10x MDL). WG242149 Sulfate 375.4 - Turbidimetric M4 The spiked sample required a dilution such that the spike recovery calculation does not provide useful information. The recovery of the associated control sample (LCS or LFB) was acceptable. 375.4 - Turbidimetric RD For a solid matrix, the duplicate RPD (spike or matrix) exceeded the control limit, which is attributable to the non - homogeneity of the sample. WG241741 Total Alkalinity SM2320B - Titration B4 Target analyte detected in blank at or above the acceptance criteria. L68214-01 WG241703 Mercury, dissolved WG242095 Acidity as CaCO3 WG242149 Chloride REPAD.15.06.05.01 M245.1 CVAA SM2310B - Titration 325.2 / SM4500CI -E I norganic Extended ualifier Report ACZ Project ID: L68214 L68214: Page 35 of 51