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ACZ Laboratories, Inc. ' - • • • • <br /> 2773 Downhill Drive Steamboat Springs, CO 80487 (800)334-5493 o • • <br /> Ensero Solutions ACZ Project ID: L77595 <br /> METHOD;ACZ ID WORKNUM PARAMETER QUAL DESCRIPTION <br /> L77595-01 NG558020 Gross Alpha M900.0 RG Sample concentration is less than 5x LLD,RPD was not <br /> used for data validation Replicate Error Ratio(RER)is <br /> less than 2. Precision judged to be in control <br /> Gross Beta M900.0 M1 Matrix spike recovery was high,the recovery of the <br /> associated control sample(LCS or LFB)was acceptable <br /> M900.0 RM For a water matrix,the duplicate precision assessment <br /> (RPD or RER)exceeded the control limit High sediment, <br /> turbidity,or presence of an immiscible liquid attributed to <br /> non-homogeneity of the sample <br /> WG557705 Radium 226,total M903.1 RG Sample concentration is less than 5x LLD,RPD was not <br /> used for data validation. Replicate Error Ratio(RER)is <br /> less than 2. Precision judged to be in control <br /> WG556527 Radium 228,total M904.0 DJ Sample dilution required due to insufficient sample <br /> M904 0 N1 See Case Narrative <br /> M904 0 RG Sample concentration is less than 5x LLD,RPD was not <br /> used for data validation. Replicate Error Ratio(RER)is <br /> less than 2 Precision judged to be in control <br /> L77595-02 WG558020 Gross Alpha M900.0 RG Sample concentration is less than 5x LLD,RPD was not <br /> used for data validation. Replicate Error Ratio(RER)is <br /> less than 2. Precision judged to be in control <br /> Gross Beta M900.0 M1 Matrix spike recovery was high,the recovery of the <br /> associated control sample(LCS or LFB)was acceptable <br /> M900 0 RM For a water matrix,the duplicate precision assessment <br /> (RPD or RER)exceeded the control limit. High sediment, <br /> turbidity,or presence of an immiscible liquid attributed to <br /> non-homogeneity of the sample <br /> WG557705 Radium 226,total M903.1 RG Sample concentration is less than 5x LLD;RPD was not <br /> used for data validation. Replicate Error Ratio(RER)is <br /> less than 2. Precision judged to be in control <br /> WG556527 Radium 228,total M904.0 N1 See Case Narrative <br /> M904.0 RG Sample concentration is less than 5x LLD,RPD was not <br /> used for data validation Replicate Error Ratio(RER)is <br /> less than 2 Precision judged to be in control. <br /> REPAD.15.06.05.01 <br /> L77595-2301171408 Page 19 of 23 <br />