Enviromental Real Estate assessment-1989

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3.0 SITE HISTORY AND OPERATIONS The site history was determined based on an interview with Mr. Bruce Vang of the City of Orono Building Department, a review of the property file at the Orono City office, and by reviewing historical aerial photographs. � The origin of the property as a naturally occurring landform is unknown with the available documentation. Based on the adjacent shoreline of Smith Bay, the property appears as though it may have been constructed of fill material. The earliest aerial photo available (1937) shows that the marina site existed as a small pe�ninsula at that time. It appears from the succession of aerial photos from 1937 to the present that the property has had boat docks, although it is doubtful that a marina existed at the site in 1937. The 1937 photograph suggests that the property was vacant, and the 1945 photograph suggests that a marina may have been located at the site. The 1956 photograph strongly suggests that a marina of some type e�dsted at the site. Because a copy of the property title abstract was not available for this report, the possible verification of the history described above was not made. A 4,000-gallon steel underground storage tank (UST) is presently located on site to provide fuel for motorized boats. The PACE Laboratories' assessment report dated September 22, 1989 stated that the UST had a capacity of 3,000 gallons and was installed in 1983. The capacity of the tank, based upon tank tightness records provided by the City of Orono is 4,000 gallons. In May of 1988 the tank was tested by Determan Welding of Fridley, Minnesota to determine the tank integrity. The tank passed the tightness test, and a copy of the test report was provided in the PACE report of September 1989. Based upon information provided on the test report, the age of the tank is approximately seven years. Leak detection equipment has been installed in the tank; it is unknown whether the detection equipment is functioning or has been maintained. As determined by this review, the operations at the site have consisted of the rental of motorized and sailboats, storage of boats during summer and winter, support services for the boating activities; and, selling of fish bait, boat supplies, snack food, and dispensing of leaded gasoline for boat motors. It is unknown at what date gasoline sales from the marina started. Sales of boats and motors from the site are known to have commenced as early as the early 1960s and gas sales are thought to have occurred at least as long. It was not reasonably possible to determine whether a UST or aboveground tank eldsted at the site prior to 1983. 3