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Step 6: Has Historical Monitoring for Radium-226 Been Completed? <br />Yes - No additional monitoring is required except for Radium-228. Skip to Step 7 <br />□ No - Monitoring for Radium-226 is Required. Please answer the following question: <br />□ Yes - monitoring completed. Please fill out Table 3 below. <br />Table 3 - Radium-226 Data <br />Radium-226 Result (pCi/L)Sample Date <br />Step 7: Initial Monitoring for Radium-228 <br />All community water systems must complete the initial monitoring requirement for Radium-228 <br />PhoneSignature <br />Page 3 of 3 <br />Note: After the initial monitoring for Radium-228 is completed, water systems will only need to monitor for <br />Radium-226 and Radium-228 if the measured Gross Alpha particle activity minus Uranium exceeds 5 pCi/L. The <br />reduced monitoring frequency for Radium-226 and Radium-228 would be based on the combined Radium value <br />(i.e. Radium-226 + Radium-228), and would be determined when the analysis results for Radium-228 become <br />available. <br />■ The system must complete four consecutive quarters1 of Radium-228 monitoring for this source by <br />December 31,2007. <br />Have four consecutive quarters of Radium-226 monitoring been completed for this source since January 1, <br />2001? <br />04iz <br />Namefof Water System Representative <br />Is the Gross Alpha particle activity minus Uranium < 5 pCi/L, based on the four-quarter average/composite of <br />[GA + (0.84x CE)] - Uranium (from Table 2, fourth column)? <br />□ No - The system must complete four consecutive quarters1 of Radium-226 monitoring for this source <br />by December 31, 2007.