10/02/1995 Park Board Packet - Laserfiche WebLink

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ARLIG ENVIRONMENTAL, INC. ,414;t,3 Excelsior Boulevard, Suite 300, Minneapolis, Minnesota 55416 Phone No: 612/924-2354 Report To: Marty Asleson City of Lino Lakes From: Susan J. McDermott Date: October 18, 1995 WETLAND DELINEATION PARK TRAIL,BRADLEY STREET,OUTLOT"F" NW 1/4,SECTION 18, T31N,R22W LINO LAKES, MINNESOTA The City of Lino Lakes plans to construct an 8- foot wide bituminous trail at the site referenced above. There is a wetland at the north end of Outlot"F". A wetland delineation according to the requirements of the MN 1991 Wetland Conservation Act (WCA) is required prior to construction on the property. Arlig Environmental was retained to delineate the wetlands on the site. Patricia Arlig, an environmental engineer trained to complete wetland delineations, and Susan McDermott placed stakes at the edge of the wetland on the property. The field work was completed on October 12, 1995. The weather was exceptionally warm. There had been heavy rains several days before this field delineation. The water levels were expected to be seasonally normal. The wetlands on the site appeared to be below the ordinary high water levels. The wetlands was identified and delineated using the guidelines of the FEDERAL MANUAL FOR IDENTIFYING AND DELINEATING WETLANDS (1989) and the CORPS OF ENGINEERS WETLAND DELINEATTON MANUAL(1987). The available maps were reviewed prior to the field delineation.. The SCS map was obtained for Anoka County. The soil on or near the site is designated as Isanti series which is on the Hydric Soils list. Field investigation began by observing the vegetation and drainage patterns. The preliminary wetland edges were determined based on vegetation. The soils were tested by digging holes to a depth of at least 18" using a narrow bladed shovel at upland and wetland locations. A soil probe with a 3/4" opening was used to verify soil conditions around the wetland perimeter. Soil colors were determined by matching them to a Munsell Soil Color Chart. Characteristics such as presence of mottling, gleying and moisture were observed and noted. The edge of the wetland was determined to be near the point where subsurface water was within 18" of the ground elevation and where wetland vegetation were encountered. Soil samples were observed at points well inside the wetland, at the wetland edge, and into the upland zone. Histic epipedon was present in the test hole within the wetland boundaries. The test holes were refilled.