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PUBLIC HEALTH SERVICES <br /> POUIry <br /> SAN jOAQUIN COUNTY <br /> ENVIRONMENTAL HEALTH DIVISION <br /> Ernest M. Fujimoto, M. D., M.P.H., Acting Health Officer <br /> 304 East Weber Avenue, Third Floor • Stockton, CA 95202 • °9� FOQ�P <br /> 2091468-3420 <br /> May 7, 1997 <br /> Environ Products, Inc. Geoflex <br /> 252 Welsh Pool Road <br /> Lionville, PA 19341 <br /> RE: REQUEST FOR APPROVAL OF GEOFLEX II PIPING FOR USE IN <br /> UNDERGROUND TANK SYSTEMS <br /> Geoflex II primary can be used for primary piping, and has UL-USA approval for this use. <br /> Geoflex H secondary piping can be used as a secondary containment system, and has UL- <br /> USA approval, if the following conditions of approval can be met: <br /> 1. Piping must be installed so that it is sloped so that all releases will flow to a <br /> collection sump located at the low point of the underground piping. CCR, Title 23, <br /> Section 2636 (c) <br /> 2. Secondary containment system must pass a minimum 5 psi pressure test for 30 <br /> minutes prior to covering piping trench. Uniform Fire Code <br /> 3. Primary and secondary containment system must pass a percisson test upon <br /> completion of fmal covering including all cement work. H & S Code, Section 25291 <br /> (h) <br /> 4. Because the piping is flexible and may move in the back fill due to changes in <br /> pressure in the line, and because this may cause abrasion of the secondary, secondary <br /> piping must be tested every two years hydrostatically, or other approved method, if it <br /> is to be placed directly in the back fill. If the piping is placed in the protective <br /> containment tubing provided by Environ, no additional secondary pipe testing will be <br /> required. <br /> 5. All piping installed within San Joaquin County must bear the UL-USA label approval <br /> statement shown below, which was provided by Environ for this approval. Failure to <br /> have the proper label on each piece of pipe will be grounds for disapproval. <br /> 'ME0100 100 PSI PRIMARY&10 PSI SECONDARY MAX WORKING PRESSURE-FOLLOW INSTALLATION <br /> INSTRUCTIONS 9SM911 LISTED NONMETALLIC SECONDARY CONTAINMENT PIPING FOR PETROLEUM <br /> PRODUCTS.ALCOHOLS&ALCOHOL MIXTURES-ISSUE IA-24r <br /> A Division of San Joaquin County Health Care Services <br /> i <br />