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California Edition: September 1997 Veeder-Root TLS Series 300 /300i / 30OPC / 350 / 350 PC / 35OR / 350RPC Monitoring Systems with CSLD versions 8473 (Mag 1) and 8493 (Magnetostrictive Probes) CONTINUOUS IN -TANK LEAK DETECTION SYSTEM Certification: Leak rate of 0.2 gph with Pp=100% and PFA=O%. Leak Threshold: 0.16 gph for single tanks at 99% operating mode Veeder-Root 125 Powder Forest Dr. Simsbury, CT 06070-2003 Tel: (203) 651-2700 Evaluator: Midwest Research Institute Tel: (816) 753-7600 Date of Evaluation: 06/10/96 289 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations. 0.15 gph for manifold tank systems at 99% operating mode. A leak is declared and a message is printed for the operator if the output of the measurement system equals or exceeds this threshold. Applicability: Gasoline, diesel, aviation fuel, waste oil, and solvents. Tank Capacity: Maximum of 38,170 gallons for single tanks and for all tanks manifolded together. Contact manufacturer for tank system applications if total tank capacity exceeds 30,000 gallons. Throughput: Monthly maximum of 221,890 gallons. Waiting Time: Minimum of 3 hours between delivery and testing. Temperature: Average for product is determined by a minimum of 5 thermistors. Water Sensor: Must be used to detect water ingress. Minimum detectable water level in the tank is 0.54 inch. Minimum detectable change in water level is 0.027 inch. Calibration: Thermistors and probe must be checked annually and calibrated if necessary in accordance with manufacturer's instructions. System set-up menu must be checked to verify that the 99% operating mode option has been selected. Comments: During installation, the set-up menu provides a choice between a 99% or a 95% operating mode. This evaluation covers only the 99% operating mode. At this time, there is no evaluation covering the 95% mode. System reports a quantitative result of pass or fail. Evaluated using both single and manifold tank systems. System collects data at naturally occurring product levels without interfering with normal tank operation, and discards data from unstable periods when system performs test. Data can be collected at any level above 12 inches of product. Leak rates above 1 gph are either reported as "fail" or as "no idle." For valid monthly testing, a conclusive test report must be produced for each tank every month. Systems wams the operator if there are no " passing" tests completed during the month. For very active tanks, a tank shut down may become necessary in order for the system to collect enough quiet -time data for a test. Test procedure used was Midwest Research Institute's "Evaluation of Continuous In -Tank Leak Detection Systems," April 17, 1995. Constant and variable leaks were mathematically induced into tight tank test records which were collected by systems installed at various active tank sites. The data base for evaluation of the system included sites with vapor recovery and blending dispensers. Tanks used in this evaluation contained gasoline and diesel. Veeder-Root 125 Powder Forest Dr. Simsbury, CT 06070-2003 Tel: (203) 651-2700 Evaluator: Midwest Research Institute Tel: (816) 753-7600 Date of Evaluation: 06/10/96 289 Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of the method or equipment. Equipment should be installed and operated in accordance with all applicable laws and regulations.