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Modified Procedure <br />Results of U.S. EPA Standard Evaluation <br />Liquid -Phase Product Detectors <br />RECEIVED <br />JUL 10 2017 <br />ENVIRONMENTAL HEALTH <br />DEPARTMENT <br />This form documents the performance of the liquid -phase product detector described below. The <br />evaluation was conducted by the equipment manufacturer or a consultant to the manufacturer <br />according to the U.S. EPA's "Standard Test Procedure for Evaluation Leak Detection Methods: <br />Liquid -Phase Out -of -tank Liquid Product Detectors". The modifications to the procedure were made <br />to accommodate the specialized requirements of interstitial monitors. <br />Tank owners using this leak detection 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 make sure this <br />form satisfies their requirements. <br />Method Description <br />Name Solid -State Dispenser Pan/Containment Sump Sensors,• Piping Sump Sensors; <br />Micro Sensor <br />Version number TLS -350/300/300i Series Consoles with Sensor Models: 794380-321; <br />794380-351; <br />794380-208, 794380-209, 794380-340 <br />Vendor Veeder Root Enviromnental Products <br />125 Powder Forest Drive, P.O. Box 2003 <br />(street address) <br />Simsbury, CT 06070-2003 (203) 651-2700 <br />(city) (state) (zip) (phone) <br />Detector output type: ( ) Quantitative (x) Qualitative <br />Detector operating principle: ( )Electrical Conductivity ( ) Thermal Conductivity ( ) Interface <br />Probe ( ) Product Permeable () Product Soluble (x) Other Ultrasonic and Float Switch <br />Detector sampling frequency: () Intermittent (x) Continuous <br />Evaluation Results <br />The detectors listed above were tested for their ability to detect a layer of liquid (hydrocarbon or <br />water) in a tank or a sump. The following parameters were determined: <br />Minimum Detectable Product Thickness - The smallest product thickness that the detector can <br />reliably detect. <br />Precision - Agreement between multiple measurements of the same product level. <br />Detection Time - Amount of time the detector must be exposed to product before it responds. <br />Specificity - Whether or not the sensor responds to various products. <br />Liquid -Phase Product Detector - Modified Results Form Page 1 of 3 <br />