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Method Name and Version: Veeder Root Mag Sump Sensors <br />Date of Certification: January 16, 2006 <br />Results of Evaluation of Systems Used for <br />Testing of Sump Containment Vessels <br />This form describes the performance of the leak detection method described below. The <br />evaluation was conducted by a consultant to the manufacturer according to a modification <br />of the Water sensor test procedures described in the U.S. EPA's "Standard Test <br />Procedure for Evaluating Leak Detection Methods: Automatic Tank Gauging Systems." <br />Tank owners using this leak detection system should keep this form on file to provide <br />compliance with the federal regulations. Tank owners should check with State and local <br />agencies to make sure this form satisfies their requirements. <br />Leak Detection Method Description <br />Name Magnetostricitive Discriminating Level Indicating Sump Sensor (Mag <br />Sump Sensor) <br />Version number(s) Sump sensor Form numbers 857080-211, 857080-221, 857080- <br />212 and 857080-222 for use with the TLS -350 Series, EMC Series, EMC Basic, and <br />Red Jacket ProMax <br />Vendor Veeder-Root <br />(Name of Manufacturer) <br />125 Powder Forest Drive, P.O. Box 2003 <br />(Address) <br />Simsbury, CT 06070-7684 (860) 651-2700 <br />(City) (State) (Zip Code) (Phone) <br />Evaluation Results <br />This Leak Detection Method minimum change in level (MLC) that can be detected by <br />The two probes tested for this evaluation are shown in Table 1. <br />Table 1. Performance of Veeder Root Mag Sump Probes <br />Parameter <br />857080-211, and -221 <br />(12 inch probe) <br />857080-212, and -222 <br />(24 inch probe) <br />Standard Deviation (in) <br />0.00130 <br />0.00213 <br />Minimum Level Change <br />0.00291 <br />0.00475 <br />Secondary Containment — Reporting Form Page 1 of 3 <br />