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DESCRIPTION OF THE PORTABLE LNG EQUIPMENT & PROCESS <br />Minne9asco desires to provide a stand-by supply of natural gas that <br />will preclude supply problems in the Orono area during extreme cold <br />periods. This stand-by supply involves using a portable liquid <br />natural gas (LNG) vaporizer to inject gas into the distribution <br />system duping periods of high demands under extreme cold <br />conditions. The need for the equipment is temporary, however, it <br />will be necessary for three to five years. <br />Minnegasco’s portable LNG vaporizer facility is composed of two <br />semi-trai lers; one with the LNG vaporizer, the other an LNG tanker. <br />The vaporizer delivers natural gas from the LNG tanker into a <br />roadside t aP which is connected to Minnegasco’s distribution <br />system. Before cold weather strikes, the LNG tanker will be <br />brought to the site. Minnegasco personnel will make all the piping <br />connections. The vaporizing process will begin before 5:00 a.m. <br />and be complete about 9:00 a.m. When the process is complete, the <br />disconnections are made, and the LNG tanker is driven off the site. <br />The vaporizer remains on site to be utilized in the next cold <br />weather. <br />During operations Hinnegasco employees will be on site at all <br />times The site will not be attended when the equipment is not in <br />use. Security patrols will visit the site at irregular intervals. <br />There will be very little noise generated by this equipment on the <br />Orono site. Any noise will be much less than the noise caused by <br />passing traffic on Old Crystal Bay Road. <br />The portable vaporizer was used in Spring Park during the 1989-90 <br />heating season. The equipment is currently parked at Minnegasco s <br />Dakota Station. Dakota Station is Minnegasco’s large LNG facility <br />located on 11500 12th Ave. S. in Burnsville.