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Results of Alternative Evaluation <br /> Liquid Filled Interstitial Monitoring for Double-Wall <br /> Pipelines <br /> Liquid Filled Interstitial Monitoring for Double-Wall Pipelines Liquid Filled Interstitial <br /> Monitoring for Double-Wall Pipelines <br /> This form tells whether the pipeline tightness testing method described below complies <br /> with the performance requirements of the federal underground storage tank regulation. <br /> The evaluation was conducted by an independent testing organization for the <br /> manufacturer according to the guidelines established for alternative protocols described <br /> in the preface to the U.S. EPA'S "Standard Test Procedure for Evaluating Leak <br /> Detection Methods: Nonvolumetric Tank Tightness Testing Methods." The full <br /> evaluation report also includes a form describing the method and a form summarizing <br /> the test data. <br /> Tank owners using this leak detection system should keep this form on file to prove <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 /> Method Description <br /> Name Dualoy Pipe Monitoring System <br /> Version Brine filled interstice <br /> Vendor Ameron International Fiberglass-Composite Pipe Division <br /> 5301 Hollister, Suite 200 <br /> (street address) <br /> Houston TX 77040 1-713-690-7777 <br /> (city) (state) (zip) (phone) <br /> Evaluation Results <br /> This method, which declares a pipeline to be leaking when loss or gain of brine <br /> in the reservoir is sufficient to trigger an alarm . Estimated volume 1.0 liter <br /> change, depending on spacing of sensors. <br /> Time to alarm with a leak rate of 0.1 gal/h 1,75 hrs <br /> Based on the results above this method (X) does ( ) does not meet the federal <br /> performance standards established by the U.S. Environmental Protection Agency (0.10 <br /> gallon per hour at P(D) of 95% and P(FA) of 5%). <br /> Liquid Filled Interstitial Monitoring—Results Forms Page 1 of 4 <br />