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ENVIRONMENTAL�AGRICULTURAL <br /> Analytical Chernists <br /> June 10, 2024 <br /> Lab No. : STK2437367-001 <br /> Luhdorff&Scalmanini, Consulting Eng. Customer No.: 3012023 <br /> Attn:Jeanette Lovelis <br /> 500 First Street Sampled On : May 21, 2024 at 09:45 <br /> Woodland, CA 95695 Sampled By : Ryan Sanchez <br /> Description Granite #5 <br /> Received On : May 21, 2024 at 14:25 <br /> : Matrix : System <br /> Project Water Monitoring <br /> Sample Results - Inorganic <br /> EM-M Erf7m� . <br /> General Mineral Date Time Who Method Date Time Who <br /> Total Hardness as CaCO3 278 2.5 mg/L 05/23/2024 13:00 ac Calc. 05/23/2024 18:42 ac <br /> I Calcium 72 1 mg/L 1 05/23/2024 13:00 ac EPA 200.7 05/23/2024 18:42 ac <br /> Magnesium 24 1 mg/L 1 05/23/2024 13:00 ac EPA 200.7 05/23/2024 18:42 ac <br /> Potassium 2 1 mg/L 1 05/23/2024 13:00 ac EPA 200.7 05/23/2024 18:42 ac <br /> ( Sodium 79 1 mg/L 1 05/23/2024 13:00 ac EPA 200.7 05/23/2024 18:42 ac <br /> Total Cations 9.1 1 meq/L 05/23/2024 13:00 ac - 05/23/2024 18:42 ac <br /> Boron 1.0 0.1 mg/L 1 05/23/2024 13:00 ac EPA 200.7 05/23/2024 18:42 ac <br /> Copper ND 10 ug/L 1 U 05/23/2024 13:00 ac EPA 200.7 05/23/2024 18:42 ac <br /> Iron 30 30 ug/L 1 05/23/2024 13:00 ac EPA 200.7 05/23/2024 18:42 ac <br /> Manganese ND 10 ug/L 1 U 05/23/2024 13:00 ac EPA 200.7 05/23/2024 18:42 ac <br /> Zinc ND 20 ug/L 1 U 05/23/2024 13:00 ac EPA 200.7 05/23/2024 18:42 ac <br /> Total Alkalinity(as CaCO3) 200 10 mg/L 1 05/26/2024 14:10 amm SM 4500-H+B 05/27/2024 02:15 amm <br /> Hydroxide as OH ND 10 mg/L 1 U 05/26/2024 14:10 amm SM 4500-H+B 05/27/2024 02:15 amm <br /> Carbonate as CO3 ND 10 mg/L 1 U 05/26/2024 14:10 amm SM 4500-H+B 05/27/2024 02:15 amm <br /> Bicarbonate as HCO3 240 10 mg/L 1 05/26/2024 14:10 amm SM 4500-H+B 05/27/2024 02:15 amm <br /> Sulfate 201 1* mg/L 2 05/22/2024 11:32 ldm EPA 300.0 05/23/2024 01:04 Idm <br /> Chloride 48 1 mg/L 1 05/22/2024 11:32 Idm EPA 300.0 05/22/2024 18:06 ldm <br /> Nitrate as NO3 11.5 0.4 mg/L 1 05/22/2024 11:32 Idm EPA 300.0 05/22/2024 18:06 Idm <br /> Nitrite as N ND 0.1 mg/L 1 U 05/22/2024 11:32 Idm EPA 300.0 05/22/2024 18:06 Idm <br /> Nitrate+Nitrite as N 2.6 0.1 mg/L 1 05/22/2024 11:32 Idm EPA 300.0 05/22/2024 18:06 Idm <br /> Fluoride 0.2 0.1 mg/L 1 05/22/2024 11:32 Idm EPA 300.0 05/22/2024 18:06 Idm <br /> Total Anions 9.7 10 meq/L 05/22/2024 11:32 Idm _ 05/22/2024 18:06 Idm <br /> pH 7.04 --- units 1 05/21/2024 09:45 rs SM 4500-H+B 05/21/2024 09:45 rs <br /> Specific Conductance 927 1 umhos/cm 1 05/26/2024 14:10 amm SM 4500-H+B 05/27/2024 02:15 amm <br /> • Total Dissolved Solids 630 20 mg/L 1 05/23/2024 10:15 ctl SM 2540 C 05/24/2024 11:00 ctl <br /> Total Dissolved Solids(sum) 678 10 mg/L 05/23/2024 13:00 ac Calc. 05/23/2024 18:42 ac <br /> MBAs,Calc.as LAS,MW 320 ND 0.1 mg/L 1 U 05/23/2024 07:10 krh SM 5540 C 05/23/2024 08:20 krh <br /> Aggressiveness Index 11.6 10 --- 05/23/2024 13:00 ac Calc. 05/23/2024 18:42 ac <br /> Langelier Index(20°C) -0.3 20 --- 05/23/2024 13:00 ac Calc. 05/23/2024 18:42 ac <br /> • Nitrate Nitrogen 2.6 0.1 mg/L 1 05/22/2024 11:32 Idm EPA 300.0 05/22/2024 18:06 Idm <br /> • DQF Flags Definition: <br /> U Constituent results were non-detect. <br /> • ND=Non-Detected, RL=Reporting Level*RL adjusted for dilution, Dil.=Dilution <br /> Section:Sample Results Page 2 of 17 Page 2 of 17 <br /> Corporate Offices&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory <br /> 853 Corporation Street 2500 Stagecoach Road 563 E.Undo Avenue 3442 Empresa Drive,Suite D 9415 W.Goshen Avenue <br /> Santa Paula,CA 93060 Stockton,CA 95215 Chico,CA 95926 San Luis Obispo,CA 93401 Visalia,CA 93291 <br /> TEL:(805)392-2000 TEL:(209)942-0182 TEL:(530)343-5818 TEL:(805)783-2940 TEL:(559)734-9473 <br /> Env FAX:(805)525-4172/Ag FAX:(805)392-2063 FAX:(209)942-0423 FAX:(530)343-3807 FAX:(805)783-2912 FAX:(559)734-8435 <br /> CA ELAP Certification No.1573 CA ELAP Certification No.1563 CA ELAP Certification No.2670 CA ELAP Certification No.2775 CA ELAP Certification No.2810 <br />