Laserfiche WebLink
Section: Quality ControlSection: Quality Control <br />This Page is to be Stamped <br /> <br />January 23, 2023 <br />Republic Services Lab No.: STK2257928 <br />Customer No.: 3008692 <br /> <br />Quality Control - Wet Chem <br />Constituent Method Date/ID Type Units Conc.QC Data DQO Note <br />Wet Chem <br />Solids, Total Dissolved 2540 C 12/28/2022:214547CTL Blank mg/kg ND <200 <br />LCS mg/kg 10110 97.6 %N/A <br />(STK2257928-010)Dup mg/kg 1.5%N/A <br />Nitrate + Nitrite as N 300 12/29/2022:200045LDM Blank mg/kg ND <20 <br />LCS mg/kg 200.0 99.1 %85-115 <br />MS mg/kg 400.0 101 %19-212 <br />(STK2257928-010)MSD mg/kg 400.0 101 %19-212 <br />MSRPD mg/kg 500.0 0.3%≤33 <br />Nitrogen, Total Kjeldahl 351.2 01/12/2023:200303STA Blank mg/kg ND <25 <br />LCS mg/kg 300.0 75.3 %31-149 <br />MS mg/kg 300.0 4440 %<¼ <br />(VI 2260032-001)MSD mg/kg 300.0 3060 %<¼ <br />MSRPD mg/kg 300.0 26.5%≤80 <br />MS mg/kg 300.0 219 %<¼ <br />(CH 2290402-001)MSD mg/kg 300.0 405 %<¼ <br />MSRPD mg/kg 300.0 5.2%≤80 <br />Nitrate + Nitrite as N 4500NO3F 01/18/2023:200552LFS Blank mg/kg ND <20 <br />LCS mg/kg 112.2 91.0%20 <br />MS mg/kg 56.09 90.5%10-150 <br />(STK2257928-007)MSD mg/kg 56.09 91.2%10-150 <br />MSRPD mg/kg 56.09 0.6%≤0 435 <br />BOD 5210B 01/12/2023:200313SJV RgBlk mg/kg 0.28 20 <br />LCS mg/kg 198.0 113%84.6-115 <br />(STK2257928-004)Dup mg/kg 4.28%15.9 <br />Definition <br /><¼:High Sample Background - Spike concentration was less than one forth of the sample concentration. <br />Blank :Method Blank - Prepared to verify that the preparation process is not contributing contamination to the samples. <br />DQO :Data Quality Objective - This is the criteria against which the quality control data is compared. <br />Dup :Duplicate Sample - A random sample with each batch is prepared and analyzed in duplicate. The relative percent difference is an <br />indication of precision for the preparation and analysis. <br />LCS :Laboratory Control Standard/Sample - Prepared to verify that the preparation process is not affecting analyte recovery. <br />MS :Matrix Spikes - A random sample is spiked with a known amount of analyte. The recoveries are an indication of how that sample matrix <br />affects analyte recovery. <br />MSD :Matrix Spike Duplicate of MS/MSD pair - A random sample duplicate is spiked with a known amount of analyted. The recoveries are an <br />indication of how that sample matrix affects analyte recovery. <br />MSRPD :MS/MSD Relative Percent Difference (RPD) - The MS relative percent difference is an indication of precision for the preparation and <br />analysis. <br />ND :Non-detect - Result was below the DQO listed for the analyte. <br />RgBlk :Method Reagent Blank - Prepared to correct for any reagent contributions to sample result. <br />Explanation <br />435 :Sample matrix may be affecting this analyte. Data was accepted based on the LCS or CCV recovery. <br />Corporate Offices & Laboratory <br />853 Corporation Street <br />Santa Paula, CA 93060 <br />TEL: (805)392-2000 <br />Env FAX: (805)525-4172 / Ag FAX: (805)392-2063 <br />CA ELAP Certification No. 1573 <br />Office & Laboratory <br />2500 Stagecoach Road <br />Stockton, CA 95215 <br />TEL: (209)942-0182 <br />FAX: (209)942-0423 <br />CA ELAP Certification No. 1563 <br />Office & Laboratory <br />563 E. Lindo Avenue <br />Chico, CA 95926 <br />TEL: (530)343-5818 <br />FAX: (530)343-3807 <br />CA ELAP Certification No. 2670 <br />Office & Laboratory <br />9415 W. Goshen Avenue <br />Visalia, CA 93291 <br />TEL: (559)734-9473 <br />FAX: (559)734-8435 <br />CA ELAP Certification No. 2810 <br />Office & Laboratory <br />3442 Empresa Drive, Suite D <br />San Luis Obispo, CA 93401 <br />TEL: (805)783-2940 <br />FAX: (805)783-2912 <br />CA ELAP Certification No. 2775 <br />ENVIRONMENTAL AGRICULTURAL <br />Analytical Chemists