WP0042692 - Laserfiche WebLink

Home Browse Search

July 26, 2022 Lab No. : STK2239270 San Joaquin County EHD Customer No. : 3017919 Quality Control -Wet Chem MS mg/L 30.00 95.3% 74-126 (CH 2273879-004) MSD mg/L 30.00 95.3% 74-126 MSRPD mg/L 10.00 0.05% :520 MS mg/L 30.00 95.0% 74-126 (VI 2244586-015) MSD mg/L 30.00 95.2% 74-126 MSRPD mg/L 10.00 0.2% <_20 Sulfate 300.0 07/06/2022:207565NJB Blank mg/L ND <0.5 LCS mg/L 50.00 100% 90-110 MS mg/L 100.0 96.1 % 82-124 (CH 2273879-004) MSD mg/L 100.0 96.5% 82-124 MSRPD mg/L 10.00 0.3% <_23 MS mg/L 100.0 87.4% 82-124 (VI 2244586-015) MSD mg/L 100.0 87.9% 82-124 MSRPD mg/L 10.00 0.3% :523 MBAS 5540C 07/06/2022:207716JBA MS mg/L 10.00 100% 90-110 (CC 2282510-001) MSD mg/L 10.00 100% 90-110 MSRPD mg/L 10.00 0.0% :50.1 Definition Blank : Method Blank-Prepared to verify that the preparation process is not contributing contamination to the samples. Dup : Duplicate Sample-A random sample with each batch is prepared and analyzed in duplicate.The relative percent difference is an indication of precision for the preparation and analysis. LCS : Laboratory Control Standard/Sample-Prepared to verify that the preparation process is not affecting analyte recovery. MS : Matrix Spikes-A random sample is spiked with a known amount of analyte.The recoveries are an indication of how that sample matrix affects analyte recovery. MSD : Matrix Spike Duplicate of MS/MSD pair-A random sample duplicate is spiked with a known amount of analyted.The recoveries are an indication of how that sample matrix affects analyte recovery. MSRPD : MS/MSD Relative Percent Difference(RPD)-The MS relative percent difference is an indication of precision for the preparation and analysis. ND : Non-detect-Result was below the DQO listed for the analyte. Explanation 435 Sample matrix may be affecting this analyte.Data was accepted based on the LCS or CCV recovery. Page 7 of 7 Page 7 of 7