Laserfiche WebLink
AC~ Laboratories, Inc. <br />2773 Downhill Drive Steamboat Springs, CO 80481 (800J 334-5493 <br />ProjectlD: 837454 <br />ACZ Project ID: L65384 <br />.- <br />ACZ Laboratories, Inc. (ACZ) received 4 miscellaneous samples from Seneca Coal Company on October 1, 2007. The <br />samples were received in good condition. Upon receipt, the sample custodian removed the samples from the cooler, <br />inspected the contents, and logged the samples into ACZ's computerized Laboratory Information Management System <br />(LIMB). The samples were assigned ACZ LIMB project number L65384. The custodian verified the sample information <br />entered into the computer against the chain of custody (COC) forms and sample bottle labels. <br />All analyses were performed within EPA recommended holding times <br />These samples were analyzed for inorganic parameters. The individual methods are referenced on both, the ACZ invoice <br />and the analytical reports. The extended qualifier reports may contain footnotes qualifying specific elements due to QC <br />failures. In addition the following has been noted with this specific project: <br />1. This project has been revised to qualify the potentially dissolved Chromium on L65384-03. The client questioned the <br />value based on historical results. ACZ reviewed th raw data and determined that there was an earlier run that indicated <br />value was actually I .GG than tietarfinn An attempt was made to re-ana yze but al! appropriate containers a een <br />disposed. ACZ believes the problem to be a interferent from the carrier gas ArCI which has the same mass/charge ratio as <br />Chromium. Future samples wilt be run utilizing the collision cell mode which corrects for this interference. <br />rccrHU.uo.uo.vo.u i <br />L65334: Page 2 of l2 <br />Seneca Coal Company January 25, 2008 <br />