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.O <br /> Analytical Chemists <br /> July 19, 2022 <br /> Lab No. : STK2237377-005 <br /> Luhdorff& Scalmanini, Consulting Eng. Customer No.: 3012023 <br /> Attn:Jeanette Lovelis <br /> 500 First Street Sampled On : May 25, 2022 at 12:10 <br /> Woodland, CA 95695 Sampled By : Ryan Sanchez <br /> Received On : May 25, 2022 at 14:05 <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 205 2.5 mg/L 1 06/03/2022 08:00 ac EPA 200.7 06/03/2022 17:28 ac <br /> Calcium 54 1 mg/L 1 06/03/2022 08:00 ac EPA 200.7 06/03/2022 17:28 ac <br /> Magnesium 17 1 mg/L 1 06/03/2022 08:00 ac EPA 200.7 06/03/2022 17:28 ac <br /> Potassium 1 1 mg/L 1 06/03/2022 08:00 ac EPA 200.7 06/03/2022 17:28 ac <br /> Sodium 72 1 mg/L 1 06/03/2022 08:00 ac EPA 200.7 06/03/2022 17:28 ac <br /> Total Cations 7.3 --- meq/L 1 06/03/2022 08:00 ac EPA 200.7 06/03/2022 17:28 ac <br /> Boron 0.4 0.1 mg/L 1 06/03/2022 08:00 ac EPA 200.7 06/03/2022 17:28 ac <br /> Copper ND 10 ug/L 1 J 06/03/2022 08:00 ac EPA 200.7 06/03/2022 17:28 ac <br /> Iron ND 30 ug/L 1 U 06/03/2022 08:00 ac EPA 200.7 06/03/2022 17:28 ac <br /> Manganese ND 10 ug/L 1 J 06/03/2022 08:00 ac EPA 200.7 06/03/2022 17:28 ac <br /> Zinc ND 20 ug/L 1 U 06/03/2022 08:00 ac EPA 200.7 06/03/2022 17:28 ac <br /> Total Alkalinity(as CaCO3) 180 10 mg/L 1 06/07/2022 10:37 amen SM 2320 B 06/07/2022 15:30 amen <br /> Hydroxide as OH ND 10 mg/L 1 U 06/07/2022 10:37 amen SM 2320 B 06/07/2022 15:30 amen <br /> Carbonate as CO3 ND 10 mg/L 1 U 06/07/2022 10:37 amen SM 2320 B 06/07/2022 15:30 amm <br /> Bicarbonate as HCO3 220 10 mg/L 1 06/07/2022 10:37 amm SM 2320 B 06/07/2022 15:30 amm <br /> Sulfate 79.5 0.5 mg/L 1 1 05/26/2022 13:03 njb EPA 300.0 05/26/2022 20:40 njb <br /> Chloride 80 1 mg/L 1 1 05/26/2022 13:03 njb EPA 300.0 05/26/2022 20:40 Wb <br /> Nitrate as NO3 9.5 0.4 mg/L 1 05/26/2022 13:03 njb EPA 300.0 05/26/2022 20:40 njb <br /> Nitrite as N ND 0.1 mg/L 1 U 05/26/2022 13:03 njb EPA 300.0 05/26/2022 20:40 njb <br /> Nitrate+Nitrite as N 2.1 0.1 mg/L 1 05/26/2022 13:03 njb EPA 300.0 05/26/2022 20:40 njb <br /> Fluoride 0.2 0.1 mg/L 1 05/26/2022 13:03 njb EPA 300.0 05/26/2022 20:40 njb <br /> Total Anions 7.7 - meq/L 1 l 06/07/2022 10:37 amm SM 2320 B 06/07/2022 15:30 amm <br /> pH 7.7 - units 1 T 05/25/2022 14:56 kqp SM 4500-H+B 05/25/2022 14:56 kqp <br /> Specific Conductance 824 1 umhos/cm 1 06/01/2022 08:09 sta SM 2510 B 06/01/2022 08:09 sta <br /> Total Dissolved Solids 470 20 mg/L 1 05/27/2022 17:43 ctl SM 2540 C 05/31/2022 11:52 ctl <br /> Total Dissolved Solids(sum) 533 0 mg/L 1 l 06/03/2022 08:00 ac EPA 200.7 06/03/2022 17:28 ac <br /> MBAS(foaming agents) Negative 0.1 mg/L 1 U 05/26/2022 13:04 jba SM 5540 C 05/26/2022 13:16 jba <br /> Aggressiveness Index 12.1 1 - 1 05/25/2022 14:56 kqp SM 4500-H+B 05/25/2022 14:56 kqp <br /> Langelier Index(20°C) 0.2 1 - 1 05/25/2022 14:56 kqp SM 4500-H+B 05/25/2022 14:56 kqp <br /> Nitrate Nitrogen 2.1 0.1 mg/L 1 05/26/2022 13:03 njb EPA 300.0 05/26/2022 20:40 njb <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 /> I The MS/MSD did not meet QC criteria. <br /> T Exceeded method/regulatory-specific holding time. <br /> ND=Non-Detected, RL=Reporting Level,Dil.=Dilution <br /> Section:Sample Results Page 6 of 10 Page 6 of 10 <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 />