ENB Region 3 Completed Applications 05/31/2006

The applicant proposes to disturb 150 linear feet of the 100-foot regulated Adjacent Area of Freshwater Wetland NB-32, Class 1, for the construction of a 20 foot wide private road to service a new subdivision.  An additional 280 linear feet of the Adjacent Area will be disturbed during re-grading and re-vegetating of an existing 10 foot driveway.  The existing 23 acre lot with 1 existing single family home is proposed to be subdivided into 5 lots with 4 new homes proposed.   All proposed disturbance associated with constructing the new homes and their associated wells, septics, and driveways is located outside the NYS regulated area.

The applicant proposes to restore approximately 0.30 acres (13,000 square feet) of salt marsh and 0.30 acres (13,000 square feet) of upland area in West Basin, Harbor Island Park, Village of Mamaroneck.  The area contains NYS regulated Tidal Wetlands (Intertidal Marsh and Littoral Zone) and Adjacent Area.  Portions of the shoreline marsh were filled sometime prior to the enactment of 6 NYCRR Rules and Regulations Part 661, Tidal Wetlands.  

    

Approximately 400 linear feet of shoreline will be excavated and re-graded.  Debris and some existing trees will also be removed from this area prior to grading.  The re-graded slope below mean high water will be planted with suitable low and high marsh plants. Above mean high water, plantings will consist of appropriate upland grasses, shrubs, and trees.  The remaining upland area will be cleared of invasive stands of common reed (Phragmites australis) and Tree-of-Heaven (Ailanthus altissima), followed by treatment with pesticide to prevent re-occurrence.  The area will then be established as lawn, with a line of shrubs along the southeast boundary of the property.   

Approximately 1400 linear feet of 5 foot wide gravel walking trail and a 16-20 foot oval lookout point will be placed within the Adjacent Area to allow public access to the site. Two gravel paths of 25-30 feet each and a set of stone steps will be placed within the Tidal Wetland as well.  Existing boulders and approximately 220 feet of existing riprap will be removed from the marsh restoration area and utilized in the proposed stone steps and lookout, or incorporated into repairs to the existing 165 foot concrete and boulder revetment to remain.

All existing areas of cordgrass (Spartina alternifolia and Spartina patens) will be protected and remain undisturbed.  A waterfowl fence will be erected around the restored marsh to prevent disturbance until full established.  

     The applicant proposes to drill Test Well #4 within the 100-foot wide adjacent area of DEC regulated Freshwater Wetland #F-76 (Class 2).   They also propose to construct a well access road and a buried water line to connect the well to their water supply distribution system

       Test Well #4 is located along Plum Brook approximately halfway between the applicant's existing pump house and existing Well #3, off Hallock's Run, of the Somers Chase Subdivision, in the Town of Somers, Westchester county, NY.