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April 17, 2013 <br />San Joaquin County PWD -Solid Waste Div. <br />Attn: Michael Carroll <br />1810 E. Hazelton St. <br />Stockton, CA 95205 <br />Description : NC-SW4- <br />Project : NC-WDR-Storm Water <br />Lab ID : STK13 <br />Customer ID : 3-2956 <br />Sampled On :April 2,2013-09:00 <br />Sampled By : Stephanie Kong <br />Received On : April 2, 2013-10:00 <br />Matrix : Surface Water <br />Sample Result - Inorganic <br />Constituent <br />Result <br />PQL <br />Units <br />Note <br />Sample Preparation <br />Method Date/ID I <br />Sample Analysis <br />Method Date/ID <br />Metals, Tata[ <br />Office & Laboratory <br />Field Office <br />853 Corporation Street <br />2500 Stagecoach Road <br />563 E. Lindo Avenue <br />Total Hardness as CaCO3 <br />76.6 <br />2.5 <br />mg/L <br />Stockton, CA 95215 <br />3010 04/04/13:203632 <br />200.7 04/04/13:204847 <br />Calcium <br />15.4 <br />1 <br />mg/1- <br />TEL: (530)343-5818 <br />3010 04/04113:203632 <br />200.7 04/04113:204847 <br />Magnesium <br />9.29 <br />1 <br />mg/L <br />FAX: (805)525-4172 <br />3010 04104/13:203632 <br />200.7 04104113:204847 <br />Vt'et Chernistryp:' <br />CA ELAP Certification No. 1563 <br />CA ELAP Certification No. 2670 <br />CA FLAP Certification No. 2775 <br />Alkalinity (as CaCO3) <br />45.2 <br />10 <br />mg/L <br />2320B 04/04/13:203630 <br />2320B 04/04/13:204848 <br />Bicarbonate <br />55.1 <br />10 <br />mg/L <br />2320B 04/04/13:203630 <br />2320B 04/04/13:204848 <br />Carbonate <br />ND <br />10 <br />mg/L <br />2320B 04/04/13:203630 <br />2320B 04/04/13:204848 <br />Hydroxide <br />ND <br />10 <br />mg/L <br />2320B 04/04/13:203630 <br />2320B 04104/13:204848 <br />Chloride <br />21,4. <br />1 <br />mg/L <br />300.0 04/08113:203864 <br />300.0 04/08/13:205091 <br />COD <br />111 <br />20 <br />mg/L <br />5220B 04/09/13:203840 <br />5220D 04/09/13:205051 <br />Conductivity <br />190 <br />1 <br />umhos/cm <br />2510B 04/03/13:203629 <br />2510B 04/03/13:204771 <br />Oxygen, Dissolved <br />5.71 <br />0.5 <br />mg/L <br />4500-0 G 04/02113:300289 <br />5210B 04/02113:300294 <br />pH <br />6.96 <br />-- <br />units <br />4500-H B 04/02/13:310515 <br />450010 04/02/13:310724 <br />s, To Dissolved <br />.011d <br />148 <br />40 <br />mg/L. <br />2540CE 04104/13:203604 <br />2540C 04/05/13:204850 <br />(TDS) <br />Turbidity <br />1 499 <br />1 0.2 <br />1 NTU <br />I <br />I 2130B 04/03/13:300286 <br />2130B 04/03113:300291 <br />ND=Non-Detected. PQL--Practical Quantitation Linut. Containers: Q , (DOB) DO Bottle, (P) Plastic, (VOA) VOA Preservatives: H2SO4 pH < 2, HNO3 pH <br />< 2, HCl pH < 2 *Surrogate. * PQL adjusted for dilution. <br />C <br />iac <br />Page 4 of 21 <br />Corporate Offices & Laboratory <br />Office & Laboratory <br />Office & Laboratory <br />Office & Laboratory <br />Field Office <br />853 Corporation Street <br />2500 Stagecoach Road <br />563 E. Lindo Avenue <br />3442 Empresa Drive, Suite D <br />Visalia, California <br />Santa Paula, CA 93060 <br />Stockton, CA 95215 <br />Chico, CA 95926 <br />San Luis Obispo, CA 93401 <br />TEL: (559)7349473 <br />TEL: (805)392-2000 <br />TEL: (209)942-0182 <br />TEL: (530)343-5818 <br />TEL: (805)783-2940 <br />Mobile: (559)737-2399 <br />Env FAX: (805)525-41721 Ag FAX (805)392-2063 <br />FAX: (209)942-0423 <br />FAX: (530)343-3807 <br />FAX: (805)525-4172 <br />FAX: (559)734-8435 <br />CA NELAP Certification No. 01110CA <br />CA ELAP Certification No. 1563 <br />CA ELAP Certification No. 2670 <br />CA FLAP Certification No. 2775 <br />