wetland investigation/determination report-2012

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WETLAND INVESTIGATION AND DETERMINATION REPORT City of Orono 2850 Somerset Lane Hennepin County,Minnesota INTRODUCTION Bolton & Menk, Inc. was asked by the City of Orono to investigate and determine the potential presence and boundaries of any wetlands located on the property at 2850 Somerset Lane. The purpose of the wetland determination is to determine the possible requirement of wetland buffer per City ordinance. This report summarizes the findings of the wetland investigation and Determination performed on November 20, 2012. This report does not satisfy the requirements of an official Determination. WETLAND DETERMINATION METHODOLOGY The property at 2850 Somerset Lane was examined November 20, 2010 was examined for potential wetland areas based on landscape position,hydrology and soil hydric indicators. 1. Hydric Soils. A hydric soil is defined as a soil that formed under conditions of saturation, flooding or ponding long enough during the growing season (the portion of the year when soil temperatures at 12 inches below the soil surface are above 41 degrees Fahrenheit), to develop anaerobic conditions in the upper part. Hydric soils were identified using the Hennepin County Soil Survey and Munsell Soil Color Charts. 2. Wetland Hydrology. An area has wetland hydrology if it is inundated or saturated 12 inches of the soil surface for at least 14 consecutive days during the growing season in at least 5 out of 10 years. Most years is defined as having a 50 percent probability of occurrence in any given year. The minimum 5 percent duration refers to a continuous single episode. BACKGROUND INFORMATION Prior to conducting a field investigation of this site, an aerial photograph and a soil map were reviewed for the presence of hydric indicators on site. This helped to determine what areas on the parcel to examine in the field. Page 1 C13.105918 November 21,2012