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35-259 to 35-266 inclusive Parsons Brook subdivision ■ n 1 Form 3 3. Registry: County Part 1: General Information 1. Location: Street Address Burts Pit Road Lot Number 1-8 ml 2. Project: Type Egg gP i e-F to develop eight (8) lots. Drainage and the development of two (2) lots will involve work in the buffer zone. No work in the wetlands or 100 -year floodplain is proposed. 4. Applicant Address 5. Property Owner Address 6. Representative Commonwealth of Massachusetts Notice of Intent Under the Massachusetts Wetlands Protection Act, G.L. c. 131, §40 and Application for a Department of the Army Permit v s on l Description A 900± foot cul- de-sac and utilities Is planned Hampshire 40 Filmore Street, Chicopee, MA 01101 40 Filmore Street, Chicopee, MA 01101 Associated Environmental Scientists, Inc. Address P.O. Box 979, 311 Elm Street, West Springfield, MA 01090 3 -1 1 it o be provided by DEOE City/Town Northampton AODn Parsons Woods Develop. Corporation DEOE File No, Current Book 3033 & Page 281 Certificate (1f Registered Land) N/A Parsons Woods Development Corporation T (413) 533 -4581 Parsons Woods Development Corporation Tel(413) 533 -4581 T (413) 737 -3586 7. Have the Conservation Commission and the DEOE Regional Office each been sent. by certified mail or hand delivery. 2 copies of completed Notice of Intent, with supporting plans and documents? Yes ® No 0 O Coastai O intend Resource Area Type: N/A Identifying number or totter of support documents 2. Clearly, completely and accurately describe. with reference to supporting plans and calculations where necessary: (a) an measures and designs to regulate work within the Buffer Zone so as to insure that said work does not alter an area specified in Part i. Section 10.02(1) (a) of these regulations; or (b) If work in the Buffer Zone will alter such an area, all measures and designs proposed to meet the performance standards established for the adjacent resource area specified lo Part Ii or Part iII of these regulations. O Coastal Resource Arse Type Bordered By 100•Foot [Nee arorwy Zone: Et inland Bordering Vegetated Wetland The 18 -Inch RCP drainage pipe proposed for the easement between Tots 5 and 6 will end -at a headwall which will be 62 feet from the wetland edge. This will be followed by 50 feet of stone rlp which wilt end within 12 feet of the wetland. Prior to this construction, a staked hay - bale barrier wilt be installed as per the plan and specifications. Silt barriers of either sift fence or hay bales will be installed at the Iimit work -line on Tots 04, 5, 6, and 7. No work shall commence until ail erosion controls are in place. AiI controls shall be inspected and maintained by the developer. No work within the buffer zone or wetland shaii be allowed beyond that proposed here without the approval of the Northampton Conservation Com mission. Iintify number or totter of support documents Plan 0 1770 - 880804 Sheets 3 of 7 6 of 7 7 of 7 3 -6 PART II - SITE DESCRIPTION Natural Feature So ADDENDUM TO NOTICE OF INTENT (Form 3) Parsons Woods Burts Pit Road Northampton, Massachusetts Newril The soils on site were determined using the U.S. Soil Conservation Service (SCS) Soil Survey of-Hampshire County, Massachusetts, Central Part. The entire site is covered by Hinckley fine sandy loam (HgA), which is a deep and excessively well drained soil. It should not present any limitations to development. Vegetation During the summer of 1987, a vegetative analysis of the site wetlands was performed by personnel of AES, Inc. in order to delineate the wetland boundary as well as to gain a better understanding of the site potential. Please see Table 1 for a list of the species encountered along with their hydric categories and abundance values. PART III - WORK DESCRIPTION Point- Source Discharge The size of this subdivision (8 lots) is such that its total impact on the Parsons Brook watershed will be very minimal. A summary of our computer modelling for storm -water runoff peaks may be found below in Table 2. It should be noted that the pre - development discharges are assumed for the sake of the analysis, to outlet at the same point as the proposed 18 -inch pipe. Based on the comparison of pre and post flows, there will be only a one (1) cubic foot per second (cfs) increase during the 10 -year storm after site development. For the 100 -year storm, the increase will be two (2) cfs. These are not considered significant when compared to the potential flows of Parsons Brook during the same frequency storms. TAXON `vane. Alnus rugosa Viburnum dentatum Fraxinus araericanus Aster puniceus Rubus sp. Betula populifolia Vaccinium corymbosum Prunus serotina Cornus foemina Ulmus rubra Polystichum acrostichoides Osmunda cinnamomea Onoclea sensibilis Euthamia graminifolia Vitis sp. Tsuga canadensis Acer rubrum Sphagnaceae sp. Quercus palustris Quercus rubra Quercus bicolor Pinus strobus Lycopodium tristachyum Lycopodium complanatum Symplocarpus foetidus TABLE 1. OCCURRENCE OF PLANT SPECIES WITHIN WETLAND AREAS ALONG PARSONS BROOK Burts Pit Road, Northampton, MA AES Job 1/881007 COMMON NAME HYDRIC CATEGORIES: 1 Obligate wetland species 2 Facultative, preferring wetlands 3 Facultative, preferring neither 4 Facultative, preferring uplands 5 Obligate upland species 6 Unspecified Alder, Speckled Arrowwood, Southern Ash, White Aster, Swamp Berries Birch, Gray Blueberry, Highbush Cherry, Black Dogwood, Red - Panicle Elm, Slippery Fern, Christmas Fern, Cinnamon Fern, Sensitive Goldenrod, Grassleaved Grape, Common Hemlock, Eastern Maple, Red Moss, Sphagnum Oak, Pin Oak, Red Oak, Swamp White Pine, Eastern White Pine, Ground Pine, Running Skunk Cabbage ABUNDANCE* M M M U U -M M M U M U -M U A M M U U -M VA U -M M M -A U M M U -M M pg 10 fil * ABUNDANCE: VA -Very Abundant; A- Abundant; M- Moderate Abundance; U- Uncommon HYDRIC CATEGORY+ 2 3 2 1 6 3 2 4 3 3 4 2 2 3 3 4 3 1 2 5 2 4 4 4 1 Q 1 1 1 1 1 1 1 1 1 The water quality of the runoff discharged at the 18 -inch RCP after development is anticipated to be somewhat lower than that of Parsons Brook. However, as this discharged water flows over the 50 feet of rip rap at the end of the pipe and then proceeds overland through the wetland, it will be cleansed of much of its potential pollutants. When it does arrive at the brook, it is expected that the water quality will be greatly improved to a level where it will not significantly impact Parsons Brook. TABLE 2. Storm 'Frequency Summary of Pre and Post Development Peak Flows at 18 -Inch RCP Drainage Outlet Flows in CFS Pre - Develop. Post - Develop. Change 2 -YR 0 1 + 1 10 -YR 2 3 + 1 25 -YR 3 5 + 2 100 -YR 5 7 + 2 ■ a 1 1 1 1 1 1 1 SCALE: r=200. `.. PARSONS WOODS BURTS PIT ROAD GENERAL KEY MAP WATERSHED AREA 5.2± ac. pg 12 0' 50'100'150' 204' 300' 400' 600'