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State valifornia—Health and Human Servs Agency <br /> Department of Health Services <br /> California <br /> Department or <br /> Health Services <br /> DIANA M.BONTA,R.N.,Dr.P.H. GRAY DAVIS <br /> Director Governor <br /> September 16, 2003 <br /> Re: Change in Leak Test Interval <br /> For Portable Nuclear MoiisturelDensity Gauges <br /> Dear Licensee: <br /> Dote the following change to the radioactive material license: <br /> The Department now requires that Troxler and Humboldt Scientific nuclear gauges be <br /> leak tested at intervals not to exceed six months, in accordance with the manufacturers' <br /> recommendations. The CPN gauges may continue to be leak tested at intervals not to <br /> exceed one year. <br /> Sincerely, <br /> 1 3 - <br /> Gary W. Butner <br /> Senior Health Physicist <br /> Radioactive Materials Licensing <br /> Radiologic Health Branch <br /> Flf'x }'Ottr <br /> PO To learn more about saving energy, visit the following web site: <br /> www.consumerenergycenter.orglflexlindex.html <br />