Wetland report/Svoboda - Laserfiche WebLink

Metadata

Thumbnails

Annotations

, , �. , INTRODUCTION The subject parcel is approximately 9 acres and dominated by grassy lawn, wetland, and forested upland. Two single-family homes lie within the west-central portion of the parceL The site has moderately undulating topography throughout with the lowest points being at the east end of the parcel toward Wetland 1. Brown Road borders the parcel on its west side (Figure 1). The area surrounding the�parcel is primarily residential. All identified wetlands were classified according to the Cowardin et al. (1979),and the US Fish and Wildlife Service Circular 39 classification systems and staked with lath or pin flags. Field data sheets,plant indicator status information,soil survey information,and wetland definition information can be found within the Technical Documentation Section. METHODS The methods used to delineate the subject parcel are described in the U.S. Army Corps of Engineers 1987 Wetland Delineation Manual, under the "routine" methods for sites less than 5 acres. This methodology is followed in order to assess whether the three criteria of a wetland are met for areas on the subject parcel. The three parameters required under normal circumstances in order to delineate a wetland are described below. National Wetland Inventory(NWI)maps(Figure 2),Soil Survey of Hennepin County maps(Figure 3),Minnesota Protected Waters maps (Figure 4),and 2003 aerial photographs were reviewed prior to the site visit to identify areas that may be wetlands. Areas illustrating evidence of wetland conditions were examined in greater detail during the field survey. Vegetation, soils and hydrology were examined (as outlined in the 1987 Manual) and used to characterize wetland types and determine wetland boundaries.Sample transects were established in representative wetland-to-upland transition zones in order to characterize the vegetation, soils, and hydrology of the site. Transects consisted of representative upland sample point(s) and representative wetland sample point(s). Information obtained from the sample points can be found on the field data sheets located in The Technical Documentation Section. Wetland boundaries were marked at the site by blaze-orange"wetland boundary"flagging attached to 4-foot wooden lath or pin flags. Where vegetation was dense,to assist in locating the flagged lath (wetland edge), a second piece of flagging was attached to a nearby tree or shrub branch. The "wetland boundary"is considered to be the topographically highest extent of the wetland basin; areas below the staked boundary met the three required wetland criteria while areas above were lacking in one or more of these criteria. Wetland classification followed methods described by Cowardin et aL (1979) and used in the NWI (e.g. PEMB, PSS1C, etc.), completed by the U.S. Fish and Wildlife Service. The Circular 39 classification (Shaw and Fredine 1956) is also given (e.g. Type l, Type 2...etc.). The indicator Svoboda Ecological Resources 940 Brown Road Project No.: 2006-109-03 2 Catherine Johnston