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Home My WebLink About07-31-1987 Statement of Environmental Impact i 0Eii Statement of Environmental Impact For Breckenridge Subdivision North Andover , Massachusetts July 31 , 1987 Richard F. Kaminski & Associates , Inc . 200 Sutton Street North Andover , Massachusetts RkcilARD F KAMINSKI AND ASSOCIATES JNC . ENGINEERS * ARCHITECTS LAND PLANNERS * SURVEYORS NORTH ANDOVER , MASS. 01645 N TELEPHONE 687 1483 tZ,Ki r Litt p� 0 z 1 1T _--_ a BM _ - i i1 - 'r am r •1 179 STATE }� 148 FOREST •l! LOCUS PLAN U . S .G . S . QUADRANGLE MAP ) SCALE : I" = 2000 FT. S-TREE STILES ('- PENNI o � o SOSCf) 0 m Z STREET �-� I Intuduction Breckenridge Homes is a land site consisting of approximately 3 .6 acres . The parcel is located on the west side of Gray Street , North Andover . It is the intention of the proponent to develop this parcel to a 3 lot residential subdivision . The parcel is located in an area of North Andover which is zoned by the community as Residence 2 , which allows for a single family dwelling on an acre . It has been classified as an Open Space District . An Open Space District would allow detached houses on lots of one acre or more . There are no deviations from this land use plan in the general vicinity . All of the usual residential utilities are presently available to the locus , excepting public sewerage . It is proposed that sewage be disposed of by sub-surface disposal systems . 1 . Water 2 . Electric 3 . Garbage and trash disposal 4 . Drainage 5 . Telephone Physiographic ,Characteristics The Breckenridge Homes locus is primarily rural , rolling and wooded . The surface of the land has been cleared of stone and at one time was farmed . There are scattered groups of apple trees . The topography of the parcel is very regular , sloping smoothly down to Gray Street . A small wetland is located on the southeast portion of the parcel . The runoff flows from this wetland by way of an existing culvert under Gray and Boston Streets and into Harold Parker State Forest . The vegetation over the locus is of two types : an open field of approximately one half an acre surrounded by a stand of mature white pines . The open field is reverted to the old field condition . The ,juxtaposition of the two vegetation types provide a favorable wildlife habitat . With the development of the homes and associated yards , the wild field condition will be replaced by equally valuable yard landscaping . However , it is impossible to replace the mature pines . Every precaution should be made to protect the mature pines whose removal is not required for construction . With the construction of the subdivision and homes approximately 60% of the site will be altered . No alteration will occur in the wetland area . Soil Analysis The soil information was obtained from data compiled in the report submitted to the Town of North Andover by the United States Soil Conservation Service. The soils are classified as Canton , very stoney , fine sandy loam having 3-8 percent slopes . It is deep , moderately sloping and the well drained soil is in irregularly shaped areas on the lower slopes of hills . The areas range from 10 to 100 acres . . Slopes are smooth, rolling , and 50 to 600 feet long . The surface is covered by stones 1 to 3 feet in diameter that are 30 to 100 feet apart . The permeability is moderately rapid in the subsoil and rapid in the substratum. Available water capacity is moderate . A few areas of the soil are farmed and are mainly used for pasture . Many areas are wooded , and many are in urban and residential development . There are no limiting features which would prevent its development in the manner proposed . BUILDING SITE DEVELOPMENT Soil. name Shallow Dwellings Dwellings Small Local Roads Lawns and Map Symbol Excavations Without With Commercial and Streets Landscaping Basements Basements Buildings CbC Severe Moderate Moderate Moderate Moderate Moderate Cutbanks Large Stones Large slope Large Stones Large Stones Caves Stones Large Stones Six deep test pits and six percolation tests were observed on- site . The ground water levels were at or greater than 7 .5 feet . The percolation rates ranged from 5 min/in . to 12 min/in . The tests were witnessed and are on file at the Board of Health office . Population Increase The most common method used to estimate the total population and the number of school age children in a given development is to apply "total household size" and "school age children" multipliers to the number of housing units of various types to be included in the development . Typically , the size of these multipliers depends upon the type of dwelling and the number of bedrooms provided in each unit . The expected population increase and the school age distribution is summarized below: Dwelling Tyne Multipliers Total Population Pup 3 Four bedroom 3 .720 Kindergarten . 152 single family Grade School .969 homes High School • 172 1 .293 Expected Population Increas-e Individuals School Age Child_rpn 11 Kindergarten 0 Grade School 3 High School —1 Total Student Increase 4 In summary , it is expected that there will be 11 residents of which 4 will be school age children . Impact of P .-opulation Growth The analysis of the impact of the expected population increase upon ,the community services is based upon the expected condition , that there will be 11 residents in the development . 1 , Public Water_ Supply Public water is available to the locus via an existing 61t pipe in Gray Street . It is the intention to continue this water main as an 611 pipe into the site . All of the developed Lots will have public water service . Water consumption resulti.ng. from the development of Breckenridge Homes is estimated to be 880 gallons per day (80 gal/day x 11 ) . This quantity will not significantly affect the public water supply in the Town of North Andover . In order to provide for fire protection , a hydrant will be installed at the end of the proposed right of way . II . Sewage Disposal Municipal sewerage is not available to the site . It is proposed to dispose of waste by means of sub-surface disposal systems . Soil testing has been completed and show that the soils are acceptable for septic system disposal . 111 , Solid__Wast-e \. The 3 dwellings of Breckenridge Homes Subdivision will generate an estimated 5 .7 tons of solid waste per year ( .52 tons per person per year x 11 persons ) . No solid waste other than that generated by the residential occupants is expected as a result of this development . IV Traffic The total daily traffic is expected to be in the order of trip-ins per average weekday . The enclosed table shows both the average weekday vehicle trip-ins and their time distribution . SUMMARY OF TRIP GENERATION RATES North Andover Base L. , a - v De 2.c�,ad ous� '�CITE Land l}sa Code ' 7 0 Land UseiBuilding Type 5 L. - -- - - =.r= Independent Variabie—T rips Per - - Average =Orchardates Trip Trips/3 Units na re Average Weekday Vehicle Trip Ends+ 12 36 Peak A.M. Enter ( 0 1 Four Between I B;.it � n ;� 2 of 7 and 9 I Iota! n 2 Adjacent P.M. Enter n 2 Street Between Exit I 0 j7 1 Traffic 4 and o T otai i . 00 3 Peak I A.M. Enter � 0 . -1 1 Flour I Exit � 0 2 of To-at ( 7 2 Generator P.M. Enter I 2 Exit 17 1 Total I i n n 3 Saturday Vehicle Trip Ends 12;1 36 Peak Enter I n �n 2 Hour of EEEL n i 1 Generator Tn o' 3 Sunday Vehicle Trip Ends I i0,4 31 Peak Enter rn !!F 1 Hour of Exit n b Q 1 Generator Total I n r� 3 V . Air Quality the quality of the air will not be significantly affected by the development of the 3 dwellings . VT . Noise The traffic and domestic noises resulting from the development of these residents will increase the noise level of the neighborhood . However , the level of the noise , between 40-50 decibels , and its kind are not considered to be a negative factor in this land use area . However , there are several aspects of the proposed development which are designed to minimize the effect of the noise on the residents and the neighbors . a . The development is small . b . Existing vegetation will buffer the adjoining residential properties . c . Supplementary planting will be added to diffuse and absorb sound . Erosion control 2 days Clearing and grubbing 1 week Detention basin construction 1 week Roadway & drive excavation 1 week Drainage installation 1--2 weeks Utility installation 1 week Roadway & drive gravel base 2 days Binder course Finish course 1 day Loaming , grading & seeding 1 week JBC 172i4 Richard F. Kaminski & Associates, Inc. Drainage Calculations Breckenridge Homes North Andover , SSA July 172 1987 Architects ❑ Engineers ❑ Surveyors ❑ Land Planners 200 Sutton St., North Andover, MA 01845, (617) 687-1483 U.S. Dept, of Agriculture JJA-ENG-21 S.,i 1 Conservation Servi.oe 3-70 TIME OF C01,1CRI RATION Site ,t Checkad PAZ! Date BY S Date ,- lx � 5 _ � 2 5R nxSTA�€CE nx�(3). IN FZEG. SLOPE VELOCITY E 1 E, TYPE OF FLOW �� >. , (FT. ) (FT. ) 3) x 10G (FPS) { � k ( ` 4 f4 3��O, 0 C) I" 4,Js O,bo. TOTAL TTifE (SEC. ) TOTIAL TTt'!E ; -C. ) TG F-,a S. Note-- Round off total to the nearest tenth of an hour. fy CURVE—MM"" s impervi6us Runoff Area col . 4 ydrologic Condition Area Curve (ac) ,x Hydro. Land Use and X Number Col . 5 Soil (ac or 4 5 6 Group' 3 401- �J 55 7 7,49 r V Totals Col . 6 U S e Cif Weighted Runoff Curve No. (Cr.I n( RUj.jOFF DEPTH (From Table 2-1 , pg- 2-3) P4R-ENG-21 N. S. Dept. of Agriculture 5,,;1 Conservation Service 340 TIME OF CONCENTRATION Site �' , /'�• BY •�i�'. Date Gheck.;d Date 7— �� i -------1 2 3 5 jR, DISTANCE DIFF. IN ELEV. SLOPE VEiOCIT`l TIME E TYPE OF FLOW W (SEC) (FT• } (FT. } t (.3) S 100 (FPS) (4i C 75T H oz 1 oqEr-L� �c 2 e 9 TOTAL TIME (SEC. ) Tc - TOTAL T?'•sE (SEC. ) w 3wJ 3600 HRS. Note: Round off total to the nearest tenth of an hour. . a� PiA�EP]('7�21 U, S. Dept. of Agnculture 340 Conservation Service TIME OF OQAICE�1i TRATIOiq ti Site 2, , -I- ?,:O,'G/ e�-,> COiJr7�. DY Date 7-/7-0 1 7 Checkwd G Date 74-) j z 3 _ 4 {5 _ R DISTANCE RIFF. IN ELEV. SLOPE VELOCITY TiNE E TYPE OF FLOW (SEC) � (FT. ) (FT. ) 3) x 100 (FPS) (2) II ` 757 f Z1Z- �� -50uT = L - � 3 3 Q _.—_ 5 PA S �(v�� 3 �v 3,� 41 8 , �tl Oe L! 7 L TOTAL TIME (SEC. ) Tc TOTAL TINE t'vEC. ) = w 360o HRS, Note: Round off total to the nearest tenth of an hour. P%1 CURVE "UMBER Hydro. Land Use and Hydrologic Conditions impervious Runoff area CaIx 4 Hy Area Curve (ac) Col . 5 sail . (ac or } Number 5 Group f2 4 3 4 5 `f 07 13 mac- --------- Totals Col . 6 - -- use ^��_ 0Weighted Runoff Curve No. (Ctt} Col; inch RUNOFF DEPTH (From Table 2-1 , pg. 2-3) ___�r RICHARD F. KAMINSKI & ASSOCIATES, INC. / ARCHITECTS - ENGINEERS • SURVEYORS LAND PLANNERS JOB NO- _-----..----- SHEET__s2—OF-2 -- CA LG. ' -- DATE PRQJECT._��•'�GC��r`LK�,,�C'r=-_.._.��/1--'"`�_------------ _---- y-- --- GHKD.- �L- -_ DACE -7_ 7�iclG Caves. Su3 X7 ,qr 2,15 J �J O /112/ ✓IU�U/�a c1/ = S7 G Qido - 4-•D CS C 'Ic Eli CW .57 - �� !a RICHARD F. KAMINSKI & ASSOCIATES, INC. 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