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SEACOR <br />March 28, 1991 <br />Mr. Dave Carlson <br />Shoreline Marina and Yacht Club <br />1955 North Shoreline Drive <br />Orono, MN <br />RE: Underground Storage Tank <br />Dear Mr. Carlson: <br />At your request, we have reviewed the underground storage tank (IJST) installation at 1955 <br />North Shoreline Drive in Orono, Minnesota. This letter report is tor the purpose ot <br />documenting the UST status under present state and federal regulations. <br />Based on documentation provided to us, there is a 3,000-gallon steel US T at the Shoreline <br />Marina and Yacht Club that serves a dispensing pump located on a dock in Smith Day. The <br />UST is used for gasoline. The piping from the tank to the pump is pressurized. There is <br />a leak detection system for the piping that sense.s a drop in pressure in the line and closes <br />a valve on the tank bung in the event of a leak in the piping. There is also, reportedly, a <br />manual valve in the piping at the shoreline. <br />SEACOR performed a site visit on October 25, 1990. Our review did not indicate evidence <br />of leaks or spills of petroleum product at or near to the UST. <br />The UST system was installed in approximately 1983. Regulations require that the system <br />be upgraded no later than December 22,1998. Upgrades include corrosion protection, spill <br />and overspill prevention equipment, and instalintion in compliance with certain specified <br />codes and installation standards. <br />The regulations also require that the UST be provided with a leak detection system by <br />December 22,1993, (separate from the piping leak detection system). <br />Until the UST is upgraded, (no later than 12/22/98), monthly inventory control and a yearly <br />tank tightness test must be performed. If the UST is upgraded, monthly inventory control <br />and a tank tightness test must be performed ever)' 5 years for 10 years following the <br />upgrade. Monthly monitoring is required after 10 years. <br />In addition to the above requirements, there arc insurance requirements that must be met <br />by October 26, 1991 for this tank installation. You should consult your attorney and/or <br />insurance broker on the specifics of these requirements. <br />/f i fh I /f<f> <br />) htfffi rr/'* ^ ^ » » / /f > <br />f. / J » i'y <br />/ \ \ J % / \