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+ Results of U.S. EPA Alternative Evaluation <br /> Liquid Level Sensor <br /> This form documents the performance of the liquid level sensor described below. The <br /> evaluation was conducted by the equipment manufacturer or a consultant to the <br /> manufacturer according to the U.S. EPA's requirements for alternative protocols. The <br /> full evaluation report also includes a report describing the method, a description of the <br /> evaluation procedures, and a summary of the test data. <br /> Tank owners using this system should keep this form on file to prove compliance with <br /> the federal regulations. Tank owners should check with state and local agencies to <br /> make sure this form satisfies their requirements. <br /> Method Description <br /> Name Single-Point Mini Hydrostatic Sensor <br /> Version number(s) Form No 794380-304 for use with ILS-350 TLS 300 Series, <br /> TLS-350 Series EMC Series EMC Basic Red Jacket ProMax, and Red Jacket <br /> ProPlus <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 Parameters <br /> The sensors listed above were tested for their abilities to respond to liquids when the <br /> sensors are installed in underground storage tank applications. The following <br /> parameters were determined from this evaluation. <br /> Threshold (Lower Detection Limit) - The smallest product thickness that the detector <br /> can reliably detect. <br /> Precision (standard deviation) - Agreement between multiple measurements of the <br /> same product level. <br /> Detection Time - Amount of time the detector must be exposed to product before it <br /> responds. <br /> Fall Time - Amount of time before the detector stops responding after being removed <br /> from the product. <br /> Specificity - Types of products that the sensor will respond to. <br /> PAGE 109 <br />