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XQL • <br /> ENVIRONMENTACK7 <br /> Analytical Chemists <br /> December 11, 2024 <br /> Lab No. : STK2457040-005 <br /> Luhdorff&Scalmanini, Consulting Eng. Customer No.: 3012023 <br /> Attn:Jeanette Lovelis <br /> 500 First Street Sampled On : November 15, 2024 at 12:05 <br /> Woodland, CA 95695 Sampled By : R. Sanchez <br /> Description Hall Received On : November 15, 2024 at 13:10 <br /> : <br /> Project Water Monitoring Matrix System <br /> Sample Results - Inorganic <br /> General Mineral Date Time Who Method Date Time Who <br /> Total Hardness as CaCO3 198 2.5 mg/L 11/19/2024 12:00 ac Calc. 11/19/2024 20:32 ac <br /> Calcium 53 1 mg/L 1 11/19/2024 12:00 ac EPA 200.7 11/19/2024 20:32 ac <br /> Magnesium 16 1 mg/L 1 11/19/2024 12:00 ac EPA 200.7 11/19/2024 20:32 ac <br /> Potassium 2 1 mg/L 1 11/19/2024 12:00 ac EPA 200.7 11/19/2024 20:32 ac <br /> Sodium 67 1 mg/L 1 11/19/2024 12:00 ac EPA 200.7 11/19/2024 20:32 ac <br /> Total Cations 6.9 1 meq/L 11/19/2024 12:00 ac - 11/19/2024 20:32 ac <br /> Boron 0.4 0.1 mg/L 1 11/19/2024 12:00 ac EPA 200.7 11/19/2024 20:32 ac <br /> Copper ND 10 ug/L 1 U 11/19/2024 12:00 ac EPA 200.7 11/19/2024 20:32 ac <br /> Iron ND 30 ug/L 1 U 11/19/2024 12:00 ac EPA 200.7 11/19/2024 20:32 ac <br /> Manganese ND 10 ug/L 1 U 11/19/2024 12:00 ac EPA 200.7 11/19/2024 20:32 ac <br /> Zinc 20 20 ug/L 1 11/19/2024 12:00 ac EPA 200.7 11/19/2024 20:32 ac <br /> Total Alkalinity(as CaCO3) 180 10 mg/L 1 11/23/2024 20:57 amm SM 4500-H+B 11/23/2024 23:17 amen <br /> Hydroxide as OH ND 10 mg/L 1 U 11/23/2024 20:57 amm SM 4500-H+B 11/23/2024 23:17 amm <br /> Carbonate as CO3 ND 10 mg/L 1 U 11/23/2024 20:57 amm SM 4500-H+B 11/23/2024 23:17 amm <br /> Bicarbonate as HCO3 220 10 mg/L 1 11/23/2024 20:57 amm SM 4500-H+B 11/23/2024 23:17 amm <br /> Sulfate 73.1 0.5 mg/L 1 12/04/2024 15:41 ldm EPA 300.0 12/04/2024 21:28 Win <br /> Chloride 74 1 mg/L 1 b 12/04/2024 15:41 ldm EPA 300.0 12/04/2024 21:28 ldm <br /> Nitrate as NO3 8.9 0.4 mg/L 1 11/19/2024 11:00 ilp SM 4500-NO3 F 11/19/2024 12:47 ilp <br /> Nitrite as N ND 0.1 mg/L 1 U 11/16/2024 15:22 akb SM 4500-NO2 B 11/16/2024 16:00 akb <br /> Nitrate+Nitrite as N 2.0 0.4 mg/L 1 11/19/2024 11:00 Up SM 4500-NO3 F 11/19/2024 12:47 ilp <br /> Fluoride 0.2 0.1 mg/L 1 12/04/2024 15:41 ldm EPA 300.0 12/04/2024 21:28 ldm <br /> Total Anions 7.4 10 meq/L 12/04/2024 15:41 Min _ 12/04/2024 21:28 ldm <br /> pH 8.0 --- units 1 11/15/2024 12:05 rs SM 4500-H+B 11/15/2024 12:05 rs <br /> Specific Conductance 739 1 umhos/cm 1 11/23/2024 20:57 amm SM 4500-H+B 11/23/2024 23:17 amm <br /> Total Dissolved Solids 440 20 mg/L 1 11/19/2024 12:30 ctl SM 2540 C 11/20/2024 10:40 ctl <br /> Total Dissolved Solids(sum) 514 10 mg/L 11/19/2024 12:00 ac Calc. 11/19/2024 20:32 ac <br /> MBAs,Calc.as LAS,MW 320 ND 0.1 mg/L 1 U 11/16/2024 10:36 krh SM 5540 C 11/16/2024 11:44 krh <br /> Aggressiveness Index 12.4 10 --- 11/19/2024 12:00 ac Calc. 11/19/2024 20:32 ac <br /> Langelier Index(20°C) 0.5 20 --- 11/19/2024 12:00 ac Calc. 11/19/2024 20:32 ac <br /> Nitrate Nitrogen 2.0 0.4 mg/L 1 11/19/2024 11:00 ilp SM 4500-NO3 F 11/19/2024 12:47 ilp <br /> DQF Flags Definition: <br /> U Constituent results were non-detect. <br /> b The Blank was positive for constituent but less than the PQL <br /> ND=Non-Detected, RL=Reporting Level*RL adjusted for dilution, Dil.=Dilution <br /> Section:Sample Results Page 11 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.Undo Avenue 3442 Empresa Drive,Suite D 9411 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 /> 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 />