Laserfiche WebLink
Step 4: Has Historical Monitoring for Uranium Been Completed? <br />Table 2 - Uranium Data <br />Column 3Column 2Column I <br />Sample Date <br />□ Quarterly if the average/composite of the monitoring results is greater than 20 pCi/L <br />Page 2 of 3 <br />fife®. <br />Have four consecutive quarters of Uranium monitoring been completed for this source since January 1, 2001? <br />0" Yes - monitoring completed. Please fill out Table 2 below. <br />□ No - The system must complete four consecutive quarters1 of Uranium monitoring for this source by <br />December 31,2007. <br />□ One sample every three years if the average/composite of the monitoring results is greater than 10 pCi/L <br />but less than or equal to 20 pCi/L <br />Uranium Result <br />(pCi/L) <br />GA Result + (0.84 x C^) <br />(Copy values from Table 1 Column 5) <br />□ One sample every nine years if the average/composite of the monitoring results is below 1 pCi/L <br />.'-tl One sample every six years if the average/composite of the monitoring results is greater than or equal to 1 <br />pCi/L but less than or equal to 10 pCi/L. <br />Average/composite <br />on the four-quarter average/composite of GA + (0.84 x CE) <br />Step 5: Determination of Reduced Monitoring Frequency for Uranium6 <br />The reduced monitoring frequency is based on the average/composite shown in Table 2, Column 2. <br />Choose the appropriate frequency below. <br />5>. 3/ X. < ■ J <br />.s'- fr' <br />If the Gross Alpha particle activity is > 5 pCi/L, based on the four-quarter average or composite of <br />GA + (0.84 x CE) from Table 1, then monitoring for Uranium is required. <br />Step 3: Can the Gross Alpha Measurements be Used to Satisfy the Monitoring <br />Requirements for Uranium and Radium-226? <br />The Gross Alpha measurement may be substituted for Radium-226 and Uranium analyses if the four-quarter <br />average/composite of the Gross Alpha result plus 0.84 x CEA does not exceed 5 pCi/L (See Table 1, Column <br />5). Please answer the following question: <br />Is Gross Alpha particle activity < 5 pCi/L, based <br />from Table 1? <br />□ Yes - No additional monitoring is required except for Radium-228. Skip to Step 7 <br />M1no - Go to Step 4. <br />__________Column 4____________ <br />[GA + (0.84 x CE)] - Uranium <br />(To calculate the GA minus Uranium <br />value the analysis results for GA and <br />Uranium must come from the same <br />sample) <br />6 Use the average of the four Uranium analysis results or the result of the composited sample in Table 2 Column 2 to <br />determine the reduced monitoring frequency for this source.