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ENVIRON MENTAL <br />Sample Result - Radio <br />Units MCL/ALResult ± ErrorConstituent MDA <br />15/53.87 ± 1.39 1.16 <br />10/28/08:210962 900.0 10/30/08:213426900.0 <br />Note: Samples are held for 3-6 months prior to disposal. <br />Radio Chemistry <br />Gross Alpha <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 = (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 run Uranium. If Gross Alpha's (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 />Description <br />Project <br />Sampled On <br />Sampled By <br />Received On <br />Matrix <br />: STK0850618-001 <br />:3-2955 <br />: October 20, 2008-13:15 <br />: Lois Gunsch <br />: October 20, 2008-13:30 <br />: Drinking Water <br />Field Office <br />Visalia, California <br />TEL: 559/734-9473 <br />Mobile: 559/737-2399 <br />FAX: 559/734-8435 <br />Corporate Offices & Laboratory <br />853 Corporation Street <br />Santa Paula, CA 93060 <br />TEL. 805/392-2000 <br />FAX: 805/525-4172 <br />CA NELAP Certification No. 0111 OCA <br />AT&T <br />Attn: Linda Alexander <br />2300 E Eight Mile Road <br />Stockton, CA 95205-0000 <br />: Newton Road - Radio <br />: PACIFIC BELL UER47 <br />Office & Laboratory <br />2500 Stagecoach Road <br />Stockton, CA 95215 <br />TEL: 209/942-0182 <br />FAX: 209/942-0423 <br />CA ELAP Certification No. 1563 <br />Lab ID <br />Customer ID <br />Office & Laboratory <br />563 E. Lindo Avenue <br />Chico, CA 95926 <br />TEL: 530/343-5818 <br />FAX: 530/343-3807 <br />CA ELAP Certification No. 2670 <br />NovemA,ne?!i:tiWbChemlStS <br />_________________________________________pCi/L_____________ <br />ND=Non-Detected. PQL=Practical Quantitation Limit. Containers: (P) Plastic Preservatives: N/A <br />!O1B <br />Sample Analysis <br />Method Date/ID <br />mel c <br />Sample Preparation <br />Method Date/ID