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Seney NOI Addendum 3 Revised 11-7-2019 James A. Gracia, PE 99 Glendale Street, Easthampton, MA 01027 November 6, 2019 Revisions to Plan Set: NOI filed on behalf of Timothy J. Seney for 1087 Westhampton Road DEP File #247-0735 In regard to the above mentioned NOI, it was decided to re-visit the wetland boundary delineation to get a second opinion on the delineation. The services of Emily Stockman, who had previously done a delineation on this property in 2015, were enlisted to review the most recent delineation performed by Ryan Nelson, from R. Levesque Associates, in May 2019. Ms. Stockman and Mr. Nelson visited the site together on October 7, 2019 to review Mr. Nelson’s wetland boundary. Upon visiting the site, it was observed that a great deal of upland vegetation had grown in areas previously delineated as wetland. This prompted a more in-depth investigation of the soils in the questionable areas. Based on the upland vegetation and the non-hydric soils found in the areas previously mapped as wetland, the boundary was revised. After re-flagging the areas in question, Ms. Stockman and Mr. Nelson met at the site with the Northampton Conservation Commission Agent, Sarah LaValley, to review the new boundary. Several new transects were documented, for both wetland and upland areas in question. The new data sheets are included in this submission. With the revised boundary in hand, the driveway alignment, grading, and stormwater facilities were revised, as shown on this newest set of site plans (revised 11-5-2019). As a result of the new boundary, the 100’ and 50’ Buffer Zones were changed, which have allowed us to locate the driveway work so as to avoid any disturbance within 50’ of the wetland boundary. It has also reduced the proposed disturbance within the 100’ Buffer Zone. The new driveway design now proposes to disturb a total of only 11,701 SF within the 100’ Buffer Zone, as opposed to the original proposal which indicated 34,136 SF of Buffer Zone disturbance. In regard to the total amount of Buffer Zone area within the subject parcel, it was calculated that the entire parcel contains approximately 257,700 SF of Buffer Zone area. The proposed 11,701 SF of disturbance equates to 4.5% of the total Buffer Zone area within the parcel. The revised driveway design (alignment and profile) is essentially the same as the original design, with slight modifications to the alignment and profile. The topography and wetland areas preclude building a house closer to Westhampton Road, therefore, the driveway must extend to the rear of the parcel to the most feasible building location on the parcel. The future building site shall be located outside of the Buffer Zone. This Notice of Intent submission is for the purpose of constructing a driveway to the future house location. Construction of a house is not part of this submission.