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ENVIRONMENTAC�AGRICULTURAL <br /> Analytical Chemists <br /> March 30, 2015 Lab ID : STK1532135-001 <br /> Customer ID : 3-13758 <br /> Paul Abbate <br /> 14301 S. Roberts Rd. Sampled On : March 3, 2015-12:35 <br /> Stockton, CA. 95206 Sampled By : Tyler Sommerville <br /> Received On : March 3, 2015-13:40 <br /> Matrix : Ground Water <br /> Description : Surland Well <br /> Project : Surland Well <br /> Sample Result-Radio <br /> Constituent Result Error MDA Units MCL/AL Sample Preparation Sample Analysis <br /> Method Date/ID Method Date/ID <br /> Radio Chemistry <br /> # 03/09/15-08:00 03/10/15-16:00 <br /> Gross Alpha 4.90±2.16 1.93 pCi/L 15/5 900.0 2P1502727 9000 ZA1503914 <br /> Uranium# 2.14± 1.01 0.300 pCi/L 20 908.0 0/2/15-076 9 908.0 03/505- 222240 <br /> ND=Non-Detected.PQL=Practical Quantitation Limit.Containers:(AGT)Amber Glass TFE-Cap,(P)Plastic,(VOA)VOA Preservatives:Monochloracetic <br /> Buffer,H2SO4 pH<2,HNO3 pH<2+PQL adjusted for dilution. <br /> MDA=Minimum Detectable Activity(Calculated at the 95%confidence level)=Data utilized by DHS to determine matrix interference. <br /> MCL/AL=Maximum Contamination Level/Action Level.Alpha's Action Level of 5 pCi/L is based on the Assigned Value(AV). <br /> AV=Assigned Value(Gross Alpha Result+(0.84 x Error)).CCR Section 64442:Drinking Water Compliance Note:Do the following <br /> If Gross Alpha's(AV)exceeds 5 pCi/L on Uranium.If Gross Alphas(AV)minus Uranium exceeds 5 pCi/L run Radium 226. <br /> Drinking Water Compliance: - <br /> Gross Alpha(AV)minus Uranium is less than or equal to 15 pCi/L <br /> Uranium is less than or equal to 20 pCi/L <br /> Radium 226+Radium 228 is less than or equal to 5 pCi/L <br /> Note:Samples are held for 3-6 months prior to disposal. <br /> Page 9 of 22 <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 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 />