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December 27, 2012 Lab ID : STK1251139-002 <br /> Customer ID : 3-2956 <br /> San Joaquin County PWD-Solid Waste Div. <br /> Attn: Michael Carroll Sampled On : December 3,2012-09:45 <br /> 1810 E. Hazelton St. Sampled By : Stephanie Kong <br /> Stockton, CA 95205 Received On : December 3,2012-14:10 <br /> Matrix : Surface Water <br /> Description : HL-S2-DWN- - <br /> Project : HL-WDR-Surface Water <br /> Sample Result-Inorganic <br /> Constituent ResultPQL Units Note Sample Preparation Sample Analysis <br /> Method Date/M Method Date/M <br /> Metals,To <br /> Total Hardness as CaCO3 35.9 2.5 mg/L 3010 12/06/12:213544 200.7 12/10/12:218153 <br /> [ Calcium 8.32 1 mg/L 3010 12/06/12:213544 2003 12/10/12:218153 <br /> Magnesium 3.67 1 mg/L 3010 12/06/12:213544 200.7 12/10/12:218153 <br /> Wet Chemis <br /> Alkalinity(as CaCO3) 29.9 10 mg/L 2320E 12/05/12:213498 2320E 12/05/12:217963 <br /> Bicarbonate 36.6 10 mg/L 2320B 12/05/12:213498 2320B 12/05/12:217963 <br /> Carbonate ND 10 mg/L 2320E 12105112:213498 2320E 12/05/12:217963 <br /> Hydroxide ND 10 mg/L 2320E 12105/12:213498 2320E 12105/12:217963 <br /> Chloride 5.25 1 mg/L 300.0 12/07/12:213710 300A 12/08/12:218188 <br /> COD 92.3 20 mg/L 5220B 12/17/12:213956 5220D 12/17/12:218174 <br /> ® Conductivity 108 1 umhos/cm 2510E 12/05/12:213503 2510E 12/05112:217897 <br /> Oxygen,Dissolved 5.54 0.5 mg/L 4500-0 G 12/03/12:300882 5210B 12/03/12:300902 <br /> pH 6.11 — Units 4500-H B 12/03/12:300881 4500HB 12!03/12:300901 <br /> Solids,Total Dissolved 80.4 40 mg/L 2540CE 12/07/12:213589 25400 12n0/12:218110 <br /> (TDS) <br /> Turbidity 103 1 0.2 1 NTU 2130B 12/03/12:300859 2130B 12/03/12:300879 <br /> ND=Non-Ducted.PQL=Practical Quantitation Limit Containers:0,(DOB)DO Bottle,(P)Plastic,(VOA)VOA Preservatives:H2SO4 pH<2,HNO3 pH <br /> <2,HCl pH<2$Surrogate.*PQL adjusted for dilution. <br /> ' R Page 9 of 28 <br /> Corporate Offices&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory Field Office <br /> 853 Corporation Street 2500 Stagecoach Road 563 E.Undo Avenue 3442 Empresa Drive,Suite D Visalia,California <br /> Santa Pau a,CA 93060 Stockton,CA 95215 Chico,CA 95926 San Luis Obispo,CA 93401 TEL:(559)734-9473 <br /> TEL:(805)392-2000 TEL(209)942-0182 TEL:(530)343-5818 TEL:(805)783-2940 Mobile:(559)737-2399 <br /> Env FAX(805)525-4172/Ag FAX:(805)392-2063 FAX:(209)942-0423 FAX(530)343-3807 FAX:(605)5254172 FAX:(559)734-8435 <br /> CA NELAP Certification No.0111 OCA CA ELAP Certification No.1563 CA ELAP Certification No.2670 CA ELAP Certification No.2-775 <br />