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ENVIRONMENTALI '.­_.­ AGRICULTURAL <br /> Analytical Chemists <br /> December 9, 2022 <br /> Lab No. : STK2256435-005 <br /> Luhdorff& Scalmanini, Consulting Eng. Customer No.: 3012023 <br /> Attn:Jeanette Lovelis <br /> 500 First Street Sampled On : November 15, 2022 at 12:10 <br /> Woodland, CA 95695 Sampled By : Ryan Sanchez <br /> Received On : November 15, 2022 at 13:45 <br /> Description Hall Matrix : System <br /> Project Water Monitoring <br /> Sample Results - Inorganic <br /> General Mineral Date Time Who Method Date Time Who <br /> Total Hardness as CaCO3 215 2.5 mg/L 1 11/18/2022 15:00 ac EPA 200.7 11/18/2022 19:36 ac <br /> Calcium 58 1 mg/L 1 11/18/2022 15:00 ac EPA 200.7 11/18/2022 19:36 ac <br /> Magnesium 17 1 mg/L 1 11/18/2022 15:00 ac EPA 200.7 11/18/2022 19:36 ac <br /> Potassium 2 1 mg/L 1 11/18/2022 15:00 ac EPA 200.7 11/18/2022 19:36 ac <br /> Sodium 73 1 mg/L 1 11/18/2022 15:00 ac EPA 200.7 11/18/2022 19:36 ac <br /> Total Cations 7.5 --- meq/L 1 11/18/2022 15:00 ac EPA 200.7 11/18/2022 19:36 ac <br /> Boron 0.4 0.1 mg/L 1 11/18/2022 15:00 ac EPA 200.7 11/18/2022 19:36 ac <br /> Copper ND 10 ug/L 1 J 11/18/2022 15:00 ac EPA 200.7 11/18/2022 19:36 ac <br /> Iron ND 30 ug/L 1 J 11/18/2022 15:00 ac EPA 200.7 11/18/2022 19:36 ac <br /> Manganese ND 10 ug/L 1 U 11/18/2022 15:00 ac EPA 200.7 11/18/2022 19:36 ac <br /> Zinc ND 20 ug/L 1 J 11/18/2022 15:00 ac EPA 200.7 11/18/2022 19:36 ac <br /> Total Alkalinity(as CaCO3) 180 10 mg/L 1 11/28/2022 14:56 amm SM 4500-H+B 11/28/2022 21:37 sta <br /> Hydroxide as OH ND 10 mg/L 1 U 11/28/2022 14:56 amm SM 4500-H+B 11/28/2022 21:37 sta <br /> Carbonate as CO3 ND 10 mg/L 1 U 11/28/2022 14:56 amm SM 4500-H+B 11/28/2022 21:37 sta <br /> Bicarbonate as HCO3 220 10 mg/L 1 11/28/2022 14:56 amm SM 4500-H+B 11/28/2022 21:37 sta <br /> Sulfate 77.9 0.5 mg/L 1 12/03/2022 19:36 Idm EPA 300.0 12/04/2022 05:31 Idm <br /> Chloride 81 1 mg/L 1 b 12/03/2022 19:36 Idm EPA 300.0 12/04/2022 05:31 Idm <br /> Nitrate as NO3 9.4 0.4 mg/L 1 11/16/2022 13:00 Ifs SM 4500-NO3 F 11/16/2022 15:29 Ifs <br /> Nitrite as N ND 0.2 mg/L 1 U 11/16/2022 13:00 Ifs SM 4500-NO3 F 11/16/2022 15:27 Ifs <br /> Nitrate+Nitrite as N 2.1 0.4 mg/L 1 11/16/2022 13:00 Ifs SM 4500-NO3 F 11/16/2022 15:29 Its <br /> Fluoride 0.2 0.1 mg/L 1 b 12/03/2022 19:36 ]dm EPA 300.0 12/04/2022 05:31 ]dm <br /> Total Anions 7.7 --- meq/L 1 b 11/28/2022 14:56 amm SM 4500-H+B 11/28/2022 21:37 sta <br /> pH 7.95 --- units 1 T 11/28/2022 14:56 amm SM 4500-H+B 11/28/2022 21:37 sta <br /> Specific Conductance 760 1 umhos/cm 1 11/28/2022 14:56 amm SM 4500-H+B 11/28/2022 21:37 sta <br /> Total Dissolved Solids 470 20 mg/L 1 11/17/2022 09:35 ctl SM 2540 C 11/18/2022 11:32 ctl <br /> Total Dissolved Solids(sum) 538 0 mg/L 1 b 11/18/2022 15:00 ac EPA 200.7 11/18/2022 19:36 ac <br /> MBAS(foaming agents) ND 0.1 mg/L 1 U 11/16/2022 15:14 jba SM 5540 C 11/16/2022 16:49 jba <br /> Aggressiveness Index 12.4 1 1 11/28/2022 14:56 amm SM 4500-H+B 11/28/2022 21:37 sta <br /> Langelier Index(20°C) 0.5 1 1 11/28/2022 14:56 amm SM 4500-H+B 11/28/2022 21:37 sta <br /> Nitrate Nitrogen 2.1 0.4 mg/L 1 11/16/2022 13:00 Ifs SM 4500-NO3 F 11/16/2022 15:29 Ifs <br /> DQF Flags Definition: <br /> J Reported value is estimated;detected at a concentration below the PQL and above the laboratory MDL. <br /> U Constituent results were non-detect. <br /> b The Blank was positive for constituent but less than the PQL <br /> T Exceeded method/regulatory-specific holding time. <br /> ND=Non-Detected, RL=Reporting Level, Di1.=Dilution <br /> Section:Sample Results Page I I of 17 Page 11 of 17 <br /> Corporate Offices&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory <br /> 853 Corporation Street 2500 Stagecoach Road 563 E.Lindo 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 />