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www.ene dab.com <br />AUWAd &mft &= IOU <br />Helena, MT 877-472-0711 • Billings, NT 800-735-4489 • Casper, WY 888-235-0515 <br />V ARA.GIfR.717s • RseiA ra• cn NALA79-1991 • r.•uam C?stinn n AAA.AAA_991A <br />CLIENT: Cotter Corporation <br />Project: Schwartzwalder Water Monitoring Program Report Date: 07/02/10 <br />Sample Delivery Group: C10060510 CASE NARRATIVE <br />RA226 ANALYSIS <br />The sample specific Minimum Detectable Concentration (MDC) as required by USNRC Regulatory Guide 4.14 could not be <br />achieved due to significant matrix interferences, restricting the volume of sample to be used in the analysis. Please consult <br />with your local regulatory agency prior to using these results for compliance purposes. <br />PREP COMMENTS <br />The prep hold time for the filtration of dissolved metals was exceeded by up to 1.2 days. <br />Page 3 of 58