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STORMWATER MANAGEMENT The stormwater management plan proposed in this preliminary plat meets or exceeds the rules and requirements of the Rice Creek Watershed District. Underground storage chambers are utilized in addition to a sedimentation pond for controlling the rate of discharge and filtering out sediment. Surface drainage is collected by catch basins and directed to the sedimentation pond or to the underground storage chambers. Treated stormwater is discharged into a nearby wetland basin. WETLANDS A comprehensive wetland delineation report was prepared for Trident Development in May of 2021 by Kjolhaug Environmental Services Company, Inc. According to the report, there are eleven (11) wetland basins identified with the entire church property. Of the eleven wetlands, only two (2) exist within the boundaries of the proposed building lot. The grading plans have been designed to avoid any impact to the existing wetland areas. All existing wetlands will be protected and preserved. A copy of the wetland delineation report is available upon request. UTILITY PLAN Sanitary sewer and municipal water are accessible to the new building lot without the need for a trunk line extension or up -sizing. Sanitary sewer is designed to connect via 6" PVC to an existing manhole located in the County Highway 96 right-of-way. Municipal water connects to an existing 8' PVC waterline located near the Hwy 96 entrance, which will provide domestic and fire suppression water. Adequate natural gas and electricity utilities are located at the northern property line. No changes to the utility services for the existing church property are proposed with this application. GRADING PLAN A site grading plan is included in this preliminary plat application. The grading plan is designed to intentionally avoid impacts to existing wetland boundaries. The grading plan proposes a stormwater treatment pond to be created at the southerly end of the lot. The stormwater pond is intended to collect and treat water draining from the surface parking lot. TREE REPLACEMENT PLAN Kjolhaug Environmental Services has been contracted to conduct a tree inventory survey to determine if the requirements of a tree replacement plan are necessary. Based on the results of the survey, a tree replacement plan has been designed to comply with Aden Hills City Code. GEOTECHNICAL EVALUATION In March 2021, Haugo GeoTechnical Services prepared a geotechnical report as to their soils evaluation, on behalf of Trident Development. They advanced nine (9) soil borings at nominal depths of twenty (20) feet. Haugo found that the existing soils are suitable for building purposes. They also encountered ground water in one boring at a depth of fourteen (14) feet. A copy of the complete geotechnical report is enclosed with this application. VEHICULAR ACCESS Site access for vehicles will be provided by the existing access drive from County Highway 96 by way of a permanent easement agreement with the church. The access drive lane is over 54 feet wide with a center median to improve traffic flow. To enhance traffic safety, a right turn lane exists on CR 96 at the entrance drive, along with a dedicated left turn lane for westbound traffic on CR 96. A secondary access drive, serving the church property does exist which intersects with Snelling Ave N. This preliminary plat proposes to modify the access point of this secondary drive to restrict right turn movement out on to Snelling. This modification is intended to complement the existing signage at the intersection, discouraging use of this secondary drive by occupants of the new lot. Page 3 of 4