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ENVIRONMENTAL AGRICULTURAL Analytical Chemists July 2, 2021 Lab ID : STK2139039 Simplot Growers Solution Customer : 3-14814 Quality Control - Inorganic Constituent Method Date/ID Type Units Conc. QC Data DQO Note Metals Phosphorus 3050 06/29/21:207296JZA Blank mg/kg ND <5 LCS mg/kg 200.0 105 % 80-120 MS mg/kg 194.2 484% <1/4 (V12144514-00I) MSD mg/kg 190.5 334% <1/4 MSRPD mg/kg 38.10 4.8% <30 PDS mg/kg 196.1 643% 75-125 430 Sodium 3050 06/29/21:207296JZA Blank mg/kg ND <50 LCS mg/kg 600.0 110% 85-115 MS mg/kg 582.5 246% 75-125 435 (V12144514-001) MSD mg/kg 571.4 223% 75-125 435 MSRPD mg/kg 38.10 4.9% <20.0 PDS mg/kg 588.2 229% 75-125 430 Phosphorus 6010B 06/30/21:209986AC CCV ppm 5.000 104% 90-110 CCB ppm -0.001 0.1 CCV ppm 5.000 103% 90-110 CCB ppm 0.001 0.1 CCV ppm 5.000 93.8% 90-110 CCB ppm 0.004 0.1 Sodium 6010B 06/30/21:209986AC >131>0:1>CCI UUUUUU C-)C-WUUU ppm 25.00 102% 90-110 ppm 0.16 1.0 ppm 25.00 101% 90-110 PPIrl 0.17 1.0 ppm 25.00 93.5 % 90-110 ppm 0.21 1.0 Wet Chem PH 4500HB 06/29/21:209912J8A CCV units 8.000 101 % 95-105 CCV units 8.000 101 % 95-105 9045C (STK2138791-001) Dup units 0.2% 5.84 Definition PDS : PDS failed, matrix - Post Diges ion Spike (PDS) not within Acceptance Range (AR) because of matrix interferences affecting this analyte. Data was accepted based on the LCS recovery. CCV : Continuing Calibration Verification - Analyzed to verify the instrument calibration is within criteria. CCB : Continuing Calibration Blank - Analyzed to verify the instrument baseline is within criteria. Blank : Method Blank - Prepared to verify that the preparation process is not contributing contamination to the samples. 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 analyte. The recoveries are an indication of how that sample matrix affects analyte recovery. D up : 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. 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. High Sample Background - Spike concentration was less than one forth of the sample concentration. DQO : Data Quality Objective - This is the criteria against which the quality control data is compared. Explanation 430 : Post Digestion Spike (PDS) not within Acceptance Range (AR) because of matrix interferences affecting this analyte. Data was accepted based on the LCS recovery. 435 : Sample matrix may be affecting this analyte. Data was accepted based on the LCS or CCV recovery. Page 9 of 9 Corporate Offices & Laboratory 853 Corporation Street Santa Paula, CA 93060 TEL: (805)392-2000 Env FAX: (805)525-4172 / Ag FAX: CA ELAP Certification No. 1573 Office & Laboratory 2500 Stagecoach Road Stockton, CA 95215 TEL: (209)942-0182 (805)392-2063 FAX: (209)942-0423 CA ELAP Certification No. 1563 Office & Laboratory 563 E. Lind° Avenue Chico, CA 95926 TEL: (530)343-5818 FAX: (530)343-3807 CA ELAP Certification Office & Laboratory 3442 Empresa Drive, Suite D San Luis Obispo, CA 93401 TEL: (805)783-2940 FAX: (805)783-2912 No. 2670 CA ELAP Certification No. 2775 Office & Laboratory 9415W. Goshen Avenue Visalia, CA 93291 TEL: (559)734-9473 FAX: (559)734-8435 CA ELAP Certification No. 2810