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On the portion of the site within the City of Arden Hills, there is a Shoreland Overlay District because of the location of Lake Johanna and Little Lake Johanna. These lakes are classified by the City as general development lakes and the Shoreland Overlay Regulations spec f es regulations for lot areq minimum water frontage and width at building line, structure minimum setback from ordinary high water mark, structure n:inimum setbacks from streets and highways, structure maximum height, and maximum lot area covered by impervious surface. As a PUD, the cities can vary some of these reguirements through the PUD approval process. All regulations for development in these areas wil! be addressed when building permits are requested. On the portion of the site within the City of Roseville, there is a Water Management Overlay District which impacts Little Lake Johanna and the wetland in the center of the Roseville Parcel. Little Lake Johanna is designated as a MnDNR Designated Shoreland (MnDNR ID # 58-P) with a General Development classification. As a PUD, Roseville can vary some of these requirements through the PUD approval process. All rules and regulations affecting these water bodies will be addressed when building permits are requested. The City ofArden Hills' current effective Floodplain Map is dated 07/O2/81, and the City of Roseville's current effective Floodplain Map is dated 03/30/81. The Roseville floodplain area is classified as a Non-Special Flood Hazard Area (NSFHA). The NSFHA is an area that is in a low- to moderate-risk flood zone and includes Zones B, C, X, Pre- and Post-FIRM. An NSFHA is not in any immediate danger from flooding caused by over�lowing rivers or hard rains. Land area in the Arden Hills portion of the site is classified as a Zone C, although some land area surrounding Little Lake Johanna is classified as Zone A1. FEMA defines Zone A1 as "areas subject ta inundation by the 1- percent-annual-chance flood event determined by detailed methods. " The base_/lood elevation shown in the Little Lake Johanna Area is 879 feet. The portion of the Arden Hr(ls Flood Ittsurance Rate Map (FIRM) that includes the College is attached as Attachment 18. The area identifred as Zone 1, a delineated floodplain area does not include any area near existing or proposed buildings. This .�loodplain area is not expected to be impacted or altered by the project. 15. Water surface use. Will the project change the number or type of watercraft on any water body? _Yes X No If yes, indicate the current and projected watercraft usage and discuss any potential overcrowding or conflicts with other uses. 16. Erosion and sedimentation. Give the acreage to be graded or excavated and the cubic yards of soil to be moved: acres 6.5 Lpnrox�; cubic yards 69,000 (approx�. Describe any steep slopes or highly erodible soils and identify them on the site map. Describe any erosion and sedimentation control measures to be used during and after project construction. The proposed Projects will require movernent of approximately 69,000 cubic yards ofsoil for the construction of the proposed ramp, roadway, and Community Life Center. Soil material may be stockpiled adjacent to sites during construction activities. Kowever, it is anticipated that a large portion of the excavated material will require removal from the construction sites. The proposed Projects wil! be entirely within the Northwestern Callege property limits; encompassing approximately 6.5 acres of disturbance. Steep slopes exist near the Project areas and extra care will be given to prevent erosion and sedimentation ojthese slopes during and after construction. Once construction is completed in these areas, permanent erosion control measures will be implemented in accordance x�ith permit requirements. Since the Projects will displace more than one acre of land, application for coverage under the NPDES Permit will be submitted to the MPCA prior to starting earthwork on the site. The contract documents for the Project will reqarire the Contractor to install and maintain BMPs (Best Management Practices) until frnal restoration of the Projects are complete and the Notice of Termination had been filed with the MPCA. During construction, the Contractor is expected to use temporary erosion control Pnge 7