CC 11-12-1991 - Laserfiche WebLink

Home Browse Search

. Minutes of the Arden Hills Regular Council Meeting, 11-12-91 Page 2 . CASE #91-21 (COnt'd) CoImci1membe.r Malone questioned if the sound level of the generator would =eate a nuisance and if information regarding the sound level is available. craig Hjelle, Director of the Physical Plant for Bethel COllege, advised he has information from the ziegler COnpany (supplier of the generator) regarding the design of the facility, which provides 2-inch fiberglass insulation and a perf=ated metal inner liner in the side walls and roof. He further explained that Ziegler calculated the maximum noise level at 56 decibels at 100 feet fram the right side of the enclosure, and at 100 feet fram the remaining sides the noise levels will be reduced approximately 5 to 10 decibels less. Hjelle advised that the letter fram Ziegler in::licates typical road noise in a residential setting is approximately 56 to 60 decibels. He noted he has seen a generator of this type in operation at there is little noise at 100 feet fram the facility. He explained the closest residential area is located on Campus and is approx:i1nately 600-700 feet from the facility. Councilmember Malone expressed concern relative to the sound in=easing as the equipment ages and questioned what recourse the city would have if the noise becomes a problem. Hjelle stated the equipment will be maintained by the COllege to meet the :minimum design standards. He explained there will be a regular maintenance check on the equipment. . 'Ihere was discussion relative to enforcement of noise or nuisance Ordinances if the sound of the generator becomes a problem. Attorney Filla explained noise/nuisance regulations are difficult to enforce. He indicated it would be preferable to attach a stipulation which states that the equipment llDJSt not exceed a reasonable decibel level. Hicks moved, secorrled by Malone, to approve Case #91-21, site Plan Review for installation of an Emergency Generator at Bethel COllege, 3900 Bethel Drive, conditioned upon the following: 1. That the generator be placed as far to the east as possible, as in::licated by the Planner in his report dated 11-6-91. 2. That retaining walls be used to allow the unit to be wilt into the slope to keep the profile as low as possible. 3. That a dark brown color be used to coordinate with other campus elements. 4. That the generator be shown on the Campus Master Plan for future reference. 5. That the Planner establish a reasonable decibel sound level at 100 feet fram the generator unit and the applicant be required to maintain the established sound level. Motion carried unanimously. (5-0) CASE #89-10; Council was referred to the Planner's report and Planning AUlliORIZE DISI'RIB. Canunission minutes dated 10-31-91, regarding the . OF EAW REPORI', suhnission of the Environmental Assessment WOrksheet for CPI, HAMLINE AVE. the PUD on the Cardiac Pacemaker site.