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Home My WebLink About24IWC7-339 Chesterfield Rd Wetlands Delineation Report 28 Arbor Lane martinbrogieinc@gmail.com Madison, CT 06443 860-208-0360 March 25, 2024 Ryan E. Thompson, PE, LS Principal Engineer & Land Surveyor RCL Thompson LLC RE: Wetlands Delineation Report 339 Chesterfield Road Oakdale, Connecticut Dear Mr. Thompson: Martin Brogie, Inc. (MBI) is pleased to submit the following information regarding a wetland delineation performed for the above referenced property on March 14, 2024. The purpose of the work was to evaluate the presence of wetlands on the property to assess the feasibility and layout for a proposed single-family residence. Site Description The subject property consists of the southern portion of an approximate 55-acre property located along the north side of Chesterfield Road. This portion of the property (study area) includes a shallow pond (Chester Pond), approximately 4 acres in size, a single-family residence along the north side of the road, and a dirt road/path leading north from the residence to a shed located on a hillslope above the northwest portion of the pond. The dirt path includes a culvert allowing water to pass from west to east from a wetland area west of the path to the fringe wetlands associated the pond. A site location map is provided as Figure 1. An aerial view of the property is provided as Figure 2. Photographs of the wetland areas are provided as Attachment A. Wetland Delineation On March 14, 2024, MBI’s Soil Scientist Martin Brogie, LEP reported to the site to assess the presence of wetlands and watercourses/intermittent watercourses in accordance with the definitions provided in Connecticut General Statutes Section 22a-38 definitions (15) and (16) including: soil types designated as poorly drained, very poorly drained, alluvial, and floodplain by the National Cooperative Soils Survey; and, rivers, streams, brooks, waterways, lakes, ponds, marshes, swamps, bogs and all other bodies of Wetlands Delineation Report 339 Chesterfield Road – Oakdale, Connecticut March 25, 2024 Page | 2 water, natural or artificial, vernal or intermittent. In addition, intermittent watercourses defined as having a permanent channel and bank and the occurrence of two or more of the following characteristics: evidence of scour or deposits of recent alluvium or detritus; the presence of standing or flowing water for a duration longer than a storm incident; and/or the presence of hydrophytic vegetation were delineated. MBI accessed the property via the main driveway off of the north side of Chesterfield Road adjacent to the residence and proceeded east from the driveway to the southwest portion of the pond. Wetland delineation commenced at WF#1 along the toe of slope where poorly-drained soils were identified. The line was consistent with a large Phragmites stand which occupies the majority of the wetland fringe on the west side of the pond. The line continued westward along the south side of the pond fringe and entered the northwestern portion of the yard and along the southern extent of the culverted path area containing rubble fill material. The line continued westward beyond the path along the south side of a vegetated wetland containing Red Maples and Spicebush. The line terminated at a stone wall located along the western property boundary with wetland flag WF#20. MBI proceeded next to the northwestern portion of the pond, below and beyond the location of the proposed residence. Here the new wetland line was commenced with wetland flag WF#100 near the toe of slope. The line extended westward and wrapped up the slope to the southern edge of the existing path/road and then proceeded to the road just north of the culvert. Wetland soils were encountered within the road (below fill) and the line continued across the road and then turned northwest finding the northern edge of the wetland limits. The line proceeded westward to the western property boundary ending at wetland flag WF#124. Connecticut inland wetlands consisting of poorly drained soils were found in association with the pond in the southeastern portion of the study area. The Natural Resource Conservation Service (NRCS) identifies open water associated with the pond and Charlton-Chatfield Soil Complex (upland soils) west of the pond. No wetland soils are mapped west of the culvert/path. Charlton-Chatfield soils are consistent with the land located north of the delineated wetlands. The soil survey map is provided in Attachment B. Hydrology The delineated wetland area is located along the bottom of sloping land that extends northward and includes rock outcroppings and steep slopes. The wetland area west of the path consists of seeps emanating from the west and the north. This wetland area drains eastward and is directed to a culvert below the dirt path. The pond hydrology appears to represent the groundwater surface and also includes various seeps infiltrating from the edge of water. Vegetation The subject study area consisted of a Red Maple Swamp to the west of the dirt road including Spicebush, Highbush Blueberry, Multiflora Rose and Greenbriar. The area around the pond was dominated by Phragmites to the southwest and west. Buttonbush was noted within the northwest pond edges and High Bush Blueberry, Red Maple and Greenbriar were noted along the wetland edges. Wetlands Delineation Report 339 Chesterfield Road – Oakdale, Connecticut March 25, 2024 Page | 3 Please contact the undersigned at 860-208-0360 is you have any questions or require further information. Thank you for the opportunity to be of service. Sincerely, Martin Brogie, LEP Soil Scientist  SITE LOCUS Copyright (C) 2009 MyTopo, 2006-2024 TomTom SCALE 1:24000 0 1000 2000 3000 4000 5000 FEET 0 1 MILE MONTVILLE Topographic 1983 41072-D2-TF-024 National Geodetic Vertical Datum 1929 NNE ENE ESE SSESSW WSW WNW NNW NE SESW NW N E S W              Oakdale, New London County, Connecticut 339 Chesterfield RoadAPPROXIMATE SCALE IN FEET 0 150 300 S C A L E WF#20 WF#100 L E G E N D APPROXIMATE DELINEATED WETLAND LINES WF#1 WF#124 APPROXIMATE LOCATIONOF PROPOSED HOUSE APPROXIMATE PROPERTY BOUNDARY EXISTING HOUSEAPPROXIMATE PROPERTY BOUNDARY ATTACH MENT A PHOTOGRAPHS SITE PHOTO LOG 339 Chesterfield Road Oakdale, CT Western Wetland Area looking west toward property boundary. SITE PHOTO LOG 339 Chesterfield Road Oakdale, CT View looking east along dirt path/road as it passes along the north side of the pond before turning up to the shed location. SITE PHOTO LOG 339 Chesterfield Road Oakdale, CT View looking southeast toward the pond from dirt path/road. ATTACHMENT B SOIL SURVEY Soil Map—State of Connecticut, Eastern Part Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 3/25/2024 Page 1 of 345925104592580459265045927204592790459286045929304592510459258045926504592720459279045928604592930734980735050735120735190735260735330735400735470735540735610735680 735050 735120 735190 735260 735330 735400 735470 735540 735610 735680 41° 27' 13'' N 72° 11' 12'' W41° 27' 13'' N72° 10' 41'' W41° 26' 58'' N 72° 11' 12'' W41° 26' 58'' N 72° 10' 41'' WN Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 18N WGS84 0 150 300 600 900 Feet 0 45 90 180 270 Meters Map Scale: 1:3,270 if printed on A landscape (11" x 8.5") sheet. Soil Map may not be valid at this scale. MAP LEGEND MAP INFORMATION Area of Interest (AOI) Area of Interest (AOI) Soils Soil Map Unit Polygons Soil Map Unit Lines Soil Map Unit Points Special Point Features Blowout Borrow Pit Clay Spot Closed Depression Gravel Pit Gravelly Spot Landfill Lava Flow Marsh or swamp Mine or Quarry Miscellaneous Water Perennial Water Rock Outcrop Saline Spot Sandy Spot Severely Eroded Spot Sinkhole Slide or Slip Sodic Spot Spoil Area Stony Spot Very Stony Spot Wet Spot Other Special Line Features Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography The soil surveys that comprise your AOI were mapped at 1:12,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: State of Connecticut, Eastern Part Survey Area Data: Version 1, Sep 15, 2023 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jun 14, 2022—Oct 6, 2022 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Soil Map—State of Connecticut, Eastern Part Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 3/25/2024 Page 2 of 3 Map Unit Legend Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI 3 Ridgebury, Leicester, and Whitman soils, 0 to 8 percent slopes, extremely stony 0.0 0.0% 17 Timakwa and Natchaug soils, 0 to 2 percent slopes 2.0 3.7% 18 Catden and Freetown soils, 0 to 2 percent slopes 1.8 3.3% 45B Woodbridge fine sandy loam, 3 to 8 percent slopes 2.3 4.3% 73C Charlton-Chatfield complex, 0 to 15 percent slopes, very rocky 12.1 22.6% 73E Charlton-Chatfield complex, 15 to 45 percent slopes, very rocky 18.1 33.8% 75C Hollis-Chatfield-Rock outcrop complex, 3 to 15 percent slopes 7.4 13.8% 75E Hollis-Chatfield-Rock outcrop complex, 15 to 45 percent slopes 0.1 0.1% 306 Udorthents-Urban land complex 6.1 11.4% W Water 3.8 7.2% Totals for Area of Interest 53.8 100.0% Soil Map—State of Connecticut, Eastern Part Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 3/25/2024 Page 3 of 3