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HomeMy WebLinkAbout08-05P G&S Scrap Metal IWA/CC R TOWN OF SOUTH WINDSOR Sp�Ty�'/NpSOR 6�UU� INLAND WETLANDS, WATERCOURSES AND CONSERVATION APPLICATION pC 1VIVI 18 Application#05 66 Date Received INSTRUCTIONS 1. Fifteen applications (15)with map and plans (2 copies) shall be submitted together with the fee set forth in the Inland Wetlands, Watercourses and Conservation Regulations, Town of South Windsor. (See Regulations, Section VII—X) 2. The South Windsor Inland Wetlands, Watercourses and Conservation Regulations should be reviewed with respect to the standards and criteria for application Evaluation. (See Regulations, Sections'V'"II—X) 3. The applicant understands that this application is to be considered complete only when all information and . documents required by the Agency have been submitted. The applicant shall also complete the state filing form. A. Applicant's Name:_G&S Scrap Metal, LLC . Address: 459 John Fitch Blvd., South Windsor,CT 06074 Phone: (home) (work)860-528-7033 (fax) B. Legal owner's name:David A.Brown Address: 994 Farmington Ave.,West Hartford, CT 06107 Phone(home) (work) 860-236-2595 (fax) (List additional owners,addresses,and phone numbers on back of application) C. If the applicant is not the owner of the subject property; a letter by the owner(s) authorizing the proposed regulated activity set forth in the application must accompany this form and will be part of the application. D. Project Name(if any)_G&S Scrap Metal,LLC—Headquarters/Operations Facility Project Address 444 Nutmeg Road North, South Windsor, CT 06074 1. Contact Person(if further information is needed)Galen$.Semprebon,P.E.,Executive V.P. Design Professionals,Inc.,425 Sullivan Avenue, South Windsor,CT 06074,291-8755 E. The geographical location of the property which is to be affected by the proposed regulated activities including-a description of the land in sufficient-detail to allow identification of the property on--the Inland Wetland and Watercourse Map. - Assessor's.mag# -- -64 -_ - - ---Parcel#--- -347 - --- - - -Zone - I F. Names of all abutting property owners from records in Town Clerk's office. (use separate sheet if necessary) see attached sheet 7 G. Have you notified all abutting property owners (from records in Town Clerk's office) by certified letter that an application is pending before the Agency? Yes ❑ ** (you are required to supply a copy of the letter with the list of the names of the abutters)." H. Purpose and description of all proposed regulated activity(s) including amount of disturbance in square feet and types of fill and the time element involved: Permitted work to occur within upland review area only. Total work within upland review area=_1.91_AC. Proposed disturbance includes building construction and construction of water quality/stormwater drainage. There will be gravel installed as part of building pad preparation, fill for grading purposes, and fill for storage/work areas outside of building. The fill will be clean gravel. I. A class A-2 map of the property drawn to 1"=40',showing the area to be developed,extent of the wetlands and watercourses affected,topography,existing and proposed activities and names and locations of adjacent property owners must be submitted. J. Amount of regulated area disturbance(within upland review area or regulated buffers) $3095 Sf K. Acreage of wetlands and watercourses in regulated areas to be altered: 70SF L. Acreage of wetlands and watercourses to be created: 0 M. Lineal feet of proposed stream alteration: 0 N. Total land area of project and percentage,which is wetlands: The site is a total of$.SAC. 12%of the project area is wetlands. O. Identify all other permits or approvals that have been issued, applied for, or required with respect to the proposed activity set forth in this application. (These may include but not be limited to, local Planning & Zoning, Zoning Board of Appeals, D.E.P., F.E.M.A., D.O.T., The Army Corps of Engineers, and any other State,Local or Federal Permits.)Local P&Z and WPCA P. The applicant (or designated representative) hereby attests that a sign will be posted at the following location(s)444 Nutmeg Road North By DPI Name Chris Chestnut on or before the following to 10 daprior to scheduled meeting Signature: J These signs must be displayed continuously for at least ten (10) days prior to scheduled meeting (see Regulations, Section 7:3a) The undersigned hereby applies for the regulated activities listed in paragraph H above, for a Inland Wetlands, Watercourses-and-Conservation permit for-the property described herein and confirms that: - -- 1. She/he is familiar with the currently effective Inland Wetlands, Watercourses and Conservation Regulations of the Town of South Windsor. 8 2. She/he understands that at any time during the review period, the Agency may require the applicant to provide more information about the wetlands and/or watercourses in question and/or any proposed activity. 3. All information submitted in the application for review shall be considered factual, or in the case of anticipated activity, binding. A knowing failure of the applicant or any of her/his agents to provide correct information, or performance exceeding the levels of activity anticipated, shall be sufficient grounds for revocation of any permit under these regulations. 4. By making this application, the applicant gives permission to the Inland Wetlands, Watercourses and Conservation Commission members and/or its representative to enter the portions of the premises which are subject of the application for the purpose of inspection and investigation and otherwise evaluating the merits of th pplication both before and after a final decision has been issued. r Si afore of 6wne;of-Pioperfy Date S'gnature p ican Date 9 Memorandum To: Inland Wetland Agency Conservation Commissioners From: Jeff Folger Date: February 6, 2008 Re: Added Inland Wetland Applications The following item(s)has been added to the"applications to be officially received"by the Inland Wetlands Agency/Conservation Commission for February 6, 2008. Appl. #08-05P—G&S Scrap Metal—444 Nutmeg road—Inland Wetland/Conservation Commission application for the construction of an industrial building,parking and storage yard, and associated improvements on property located northerly of Governors Highway and easterly of Nutmeg Road North. Industrial (I) Zone. P.O.BOX 1167 425 SULLIVAN AVENUE ■ "2 9 � .'�� SOUTH WINDSOR,CT 06074 68W PHONE: 860.291.8755 ■ 'oy4y 3.., FAX: 860.291.8757 aIso�N ::p Q www.designprofessionalsinc.com o"< CIVIL & TRAFFIC ENGINEERS / PLANNERS/34.1 EYORS 1613 ANALYSTS I LANDSCAPE ARCHITECTS Transmitted via certified mail February 5,2008 • Dear Current Abutting Property Owner: Re: G&S Scrap Metal,LLC. 444 Nutmeg Road North South Windsor,Connecticut DPI Project No.2509 In accordance with Section 7.3b of the"Town of South Windsor Inland Wetlands,Watercourses,and Conservation Regulations",we are required to notify you that an application has been filed on the property abutting yours and is subject to a hearing by the Inland Wetlands Agency/Conservation Commission.The application and plans are on file with the South Windsor Planning Department. As an abutting property owner you are invited to the hearing to ask questions and/or give comments, however,you are not required to attend.You may also submit written comments regarding the application prior to the hearing if you so desire.For further information regarding the specific date this will hear please contact Jeff Folger,Environmental Planner/Conservation Officer,Planning Department,644-2511,ext. 253. Furthermore,in accordance with regulations of the Planning&Zoning Commission,we are required to notify you that an application has been filed on the property abutting yours and is subject to a hearing(s)by the Planning&Zoning Commission. The applications and plans are on file with the South Windsor Planning Department in the Town Hall. As an abutting property owner you are invited to the hearing(s)to ask questions and/or give comments, however,you are not required to attend. You may also submit written comments regarding the application(s)prior to the meeting if you so desire. For further information regarding the specific date this application will be heard,please contact Michele Lipe,Deputy Planning Director,at the South Windsor Planning Department at 644-2511,ext.252.Thank you Sincerely, DESIGN PROFESSIONALS,INC. By: , • njamin P.Wheeler • Director of Operations P.O.BOX 1167 425 SULLIVAN AVENUE SOUTH WINDSOR,CT 06074 PHONE: 860.291.8755 Is FAX: 8onalsi c.com 57 www.designprofessionalsi nc.com CIVIL& TRAFFIC ENGINEERS/ PLANNERS/SURVEYORS/GIS ANALYSTS/LANDSCAPE ARCHITECTS Abutters Application of G&S Scrap Metal, LLC 444 Nutmeg Road North DPI Project No. 2509 * -Direct Abutter Zip • GIS PIN# Property Owner Address city State Code • *36900420 David Brown 994 Farmington Ave West Hartford CT 06107 *36900430 David Brown 994 Farmington Ave West • Hartford CT 06107 36900436 David Brown 994 Farmington Ave West • Hartford CT 06107 *36900400 Marcel O.Bizier 400 Governor's South Highway Windsor CT 06074 *36900410 Rycon Properties,LLC 7 Fox Hill Road South • Windsor CT 06074 *65100528 AJST South Windsor,LLC 11 Eleanor St.ExL Vernon CT 06066 651 OR007A Torring Rd.Associates LLC P.Box 1065 South - _ • Windsor CT 06074 65100555 555 Nutmeg Rd.No Realty,LLC 28-40 31 ST Street • C/O Max Finkelstein Inc Long Island NY 11102 65100519 South Sea Company Inc.C/O Byrne 330 Main Street and Storme PC Hartford CT 06016 36900330 Electro Methods,Inc 330 Governors South Highway Windsor CT 06074 . : : i Stormwater Management Plan G&S Scrap Metal, LLC 444 Nutmeg Road North South Windsor, Connecticut Go !e�1 ms:StIV qyq+u, a°mrag Prepared by Design Professionals,Inc. 425 Sullivan Avenue South Windsor,CT 06074 DPI Project No.2509 January 23,2008 Table of Contents: Page# Introduction 1 Proposed Development 1 Off-Site Analysis 1 Peak Runoff control 1 Riparian Buffers I Erosion/Sedimentation Control Systems 1 Storm-water Runoff Quality 2 Conveyance System 2 Discharge at the Natural Location 2 Maintenance and Operation 2 Topographic Contour Maps 3 Floodplain Boundaries 3 Drainage Design 3 On-Site Storm Sewer Calculations 3 Water Quality Volume Calculations 3 Conclusions 3 Appendices Site Location Map A Water Quality Volume Calculations B Storm Sewer Calculations C Introduction: The site is located at 444 Nutmeg Road North in South Windsor, Connecticut,and consists of a single parcel of 10 acres which will be sub-divided into two lots of 8.5 acres(Lot# 17)and 1.5 acres(Lot# 18). The 8.5 acre site will be developed at this time.The site is presently undeveloped. The site is part of a previously approved industrial subdivision,known as"Executive Court",consisting of 17 lots. Appendix A contains a site location map. Proposed Development: The proposed development of the site includes the construction of a main building to house G&S Scrap Metal,LLC,(a scrap metal recycling facility), which will include offices,staging areas and processing areas. Outdoor staging/sorting/ processing/storage areas,and associated access driveways and parking will also be constructed. The site presently drains in two principal directions. The south side of the site drains to the south into a swale located along the southern boundary of the property and flows westerly, entering an existing culvert and discharges into the larger wetlands area along the western boundary along Nutmeg Road North. The north and west sides of the site drain to the northwest into an existing intermittent watercourse. Both the southern swale and the watercourse discharge from the site via a 24"culvert under Nutmeg Road The storm drainage system proposed for the site is divided into two sections.Runoff from the outdoor staging/sorting/processing/storage area and paved areas to the north and east of the proposed building will be collected into a storm drainage system,piped through a water quality system consisting of a"Stormgate"and"Vortechs Model 2000 Stormwater Treatment System",and discharge into the existing watercourse located along the western edge of the site.Runoff from the building(roof leaders)and parking area located to the south of the building will drain via a piped stormwater system consisting of catch basins,equipped with trap hoods,and will discharge into the existing watercourse. Off-Site Analysis: The proposed development of this site was analyzed in the previously approved stormwater management plan for the"Executive Court"industrial subdivision. Peak Runoff Control: The proposed development of this site was analyzed in the previously approved stormwater management plan for the"Executive Court"industrial subdivision. Riparian Buffers: In order to protect the intermittent watercourse while also allowing for an economically feasible project,a riparian buffer of 50 feet will generally be provided along the northern intermittent watercourse.In some areas the buffer area was reduced to 30±feet to provide a truck turn around area and also within storage areas. Erosion/Sedimentation Control Systems:An extensive erosion/sedimentation control plan has been developed as part of the site design. These measures include the following: 1. Installation of silt fence down-slope of disturbed areas. 1 2. Installation of silt fence around stockpiled materials. 3. Installation of silt fence around catch basins. 4. Installation of temporary sediment basins during construction. 5. Stabilizing disturbed areas as soon as practical during construction. 6. Limiting the areas of disturbance during construction. 7. Installation of construction entrance pad,and sweeping of roadways as needed. 8. Maintenance of the above measures. Stormwater Runoff Quality: The main water quality measures proposed are the "Vortechs Stormwater Treatment System"and trap hoods located within catch basin structures. Conveyance System:The on-site conveyance system consists of overland flow into the catch basins connected by HDPE piping. Discharge at the Natural Location:The site will continue to discharge to the wetlands located along the western boundary and offshe the 24"culvert at Nutmeg Road North. Maintenance and Operation: The following maintenance operations will be required to ensure the proper and efficient operation of the Storm Waxer System,and the"Vortechs Stormwater Treatment System". The following maintenance schedule is intended to be a minimum guide,and additional inspections and maintenance measures may be required following large storm events that could cause the deposition of excess debris in the system. Pipe Outlet Locations: The pipe outlets and associated riprap shall be inspected annually and cleaned of silt and/or debris. The riprap shall be re-shaped and replenished as required. Catch Basins: The catch basins shall be inspected annually. The sumps shall be cleaned when the depth of material within the sumps reaches 1'. Pavement Sweeping: The parking lots shall be swept at a minimum of once per year, in the spring shortly after the end of the snow season. Vortechs Stormwater Treatment System: After installation of the Vortech structures and prior to stabilization of the site,the structure shall be inspected monthly and after significant rainfall events.The structures shall be cleaned as required. After final stabilization of the site,the Vortech structures shall be inspected quarterly,until the first cleaning is required,to determine a required cleaning cycle. Once a cleaning cycle is established,the structures shall be inspected a minimum of once/year. 2 All maintenance of the system shall be in compliance with the manufacturers specifications. Topographic Contour Maps: A topographic contour map has been provided showing the drainage areas for the site at a scale of 1"=40'. The map showing the existing and developed conditions is included in the rear of this report. Floodplain Boundaries: The site does not contain any floodplain boundaries. Drainage Design: The drainage design of the site has been completed utilizing generally accepted design methods. The runoff from the site under existing conditions was determined as part of the stormwater management plan developed for the previously approved"Executive Court"industrial sub-division. The plan for the proposed developed lots of"Executive Court"was as conservative as possible with the developed impervious coverage maximized at 65%for all lots. Under developed conditions lot# 17 proposes only 54%impervious coverage. The runoff under developed conditions was determined utilizing the rational method for a 10 year storm. The drainage piping on site was designed using the rational formula. The results for the developed discharge / storm sewer calculations are included in Appendix C. On-Site Storm Sewer Calculations: The storm sewer calculations for the storm piping within the site are included in Appendix C. The storm sewer has been designed for a 10- year design storm utilizing the rational formula. Water Quality Volume Calculations: The water quality volume calculations for the site are included in Appendix B. Conclusions: The on-site stormwater system and the Vortechs Stormwater Treatment System, together with the previously approved improvements to the "Executive Court Sub-division" will mitigate any potential water quality and quantity impacts from the development of the site. 3 APPENDIX A RgAq .g cq �S SITE AD 4S�NBERRy ROAD BAKER LANEfh o q ��EMFgd a LEI SA a � m PO DESIGN PROFESSIONALS, INC. LOCATION PLAN SCALE,1"=1,000' 4 } APPENDIX B WATER QUALITY CALCULATIONS: The stormwater treatment system is designed to treat the runoff from the outdoor storage yards,material handling areas,and truck docks. The following calculations determine the minimum volume of flow to be treated by the system prior to any bypass discharge occurring.. Water Quality Volume Calculations Reference: 2004 Connecticut Stormwater Quality Manual WQV _ (1")(R)(A) 12 WQV=volume in ac-ft R=0.05 +0.009I I=%impervious coverage A=area in ac WQV— (1)(0.05+(0.009)(100))(2.93) 12 WQV=0.23 ac-ft Water Quality Flow Calculations Reference: 2004 Connecticut Stormwater Quality Manual WQF =(qu)(A)(Q) WQF=water quality flow(cfs) qu =unit peak discharge(cfs/mi2/inch) A =drainage area(mi.2)=(Ac./640) Q=runoff depth(in water shed inches) = (WQV(acre ft))x(12(inches/foot))/Drainage Area(acres) WQF= (600)(0.0046mi.2)(94) =2.59 cfs which does not exceed the 2.8 CFS peak treatment capacity of the VORTECHS Model 2000 Stormwater Treatment System. 5 Nb7Ll VORTECK$TSTEAl6 PISTA,19D IN ABYRASSCOWIRMTO N REQUIREANUPSTREAM DI4'ERSMSTRUCTURETHAT jN# SfIALL BE BALED BY T"E cQNBKTIq.OE%2w6 t441PH ELEVATION AND WPOR WIDTH°JAliA PRlYu 0 BY OCME:H STORMWAT3 SOLLU ONS. 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STANDARD DETAIL STORMWATER TREATMENT SYSTEM VORTECHS"MODEL 2000 JS PATETfTtb 5,76%4`.5 QATETbt1.CE 3CALEtNQ@� - Fp.F CvAI�STTI2K QR4Yet$u'kC CHF3RED7NLYG 6 R Storm Drain Computation Sheet-English Computed C T C Date / , Project ! r1a p / '��� lz c Route. Nv>x,►v �• I�.,/ f e�«�1 47_ Checked Date Station �/ Town So..lh Ae+ f�' C i Station Drainage A x C Flow Time,T. Velocity . Inv eft ac Area, (min) c . (fps) Elevation,(ft) V _ g o FE et to y C FE ,l'Y ,9 Cb dL -CI-3 /Sq 13"-1 .So .6? .at .371 5 1,it j;;I .S Cb C b zf A263 -SO /,o q . q S -?A 5 .23 3,19 5,�' 'l,74 /9 7,b Y.y a.S cb it 3 , +61 . 5S r, J1 0,78 7,5v 1-0. 7.1, y. CIS � C6 5' e R 132 .31 •39 . 8 ,31 .31 5 - s G,a 1,9A IS Al,4 17 0.5 Cis 9 4 4 030 ,5S .� S'3 .:� ,50' .50 -� S 4. f J5 y,& 3,'7 . v,s Cb 4 c 6 7 SI ,SY . 9 .y9 99 .62 5.ca 5.9 .PY l8 U Y,11 S Cb > cL S 2y8 .6L1 1,73 9 ,S8 /.57 S S.9 S,8 _1,t, 2y /4 S•l ; ©,s Cb 7 Sf..- r 8S .24 S.q ld:oo �a iG s.e a, i Table 11-8.1 Storm Drain Computation Sheet-English units FROM : DAVID BROWN ASSOCIATES PHONE NO. : 8602362596 Feb. 01 2009 05:12PM P3 reb 01 00 12:23p Design Professionals 8GO-201 0?52 P.2 February 1,2009 To Whom It May Coticem: 1 hereby authorize Peter R.DeMalIie of Design Professionals,Inc_to execute,on my behalf,any and all land use applications assoaiattd with my Vrvparty.Lut 11 I7, "Executive Court",at Nutx nRead North and Governor's Highway in South Windsor. SIUMMI a .Browu - P.O.BOX 1167 425 SULLIVAN AVENUE SOUTH WINDSOR,Cr 06074 PHONE:860.291.8755 FAX:86nalsin 8757 .com w'ww.designprofessionalsinc.com CIVIL & TRAFFIC ENGINEERS! PLANNERS / SURVEYORS J GIS ANALYSTS / LANDSCAPE ARCHITECTS February 26,2008 Jeff Folger Environmental Planner Town of South Windsor : 1540 Sullivan Avenue South Windsor,CT 06074 : • RE: G&S Scrap Metal Applic.08-08P : Dear Jeff We are submitting 4 sets of revised plans for the above referenced project. The plans have been revised to address comments by yourself and Jeff Doolittle. Our responses to the like numbered comments are as follows: Your comments dated 02/08/08 • 1. The proposed limits of clearing have been added to the plans. 2. The limits of the concrete steel yard have been scaled back to provide a vegetated buffer along the existing wetlands in this area. 3. The proposed fence has been adjusted to coincide with the proposed limits of clearing along the wetlands. Your comments dated 02/13/08 : • 1. The plans have been revised to encompass two surface basins for water quality on the site in addition to utilizing the existing drainage swale along the south side of the site for • water quality. Storm water calculations supporting the required water quality volume design are included with this letter. Jeff Doolittle's comments dated 02/15/08 1. The subdivision's phase I improvements that are required on the subject site have been added to the plans._-These include-grading for the-drainage-Swale,-and a 4' stone dust walking path. In addition,notes have been added regarding the need to the subdivision's - developer-to complete-these improvements priorto or as-part of-the-proposed-site • development. 2-.---Th-e--p1ans have men revised.to encompass two surface basins for water quality on the site in addition to utilizing the existing drainage swale along the south side of the site for water quality. Storm water calculations supporting the required water quality volume design are included_With this letter. 3. See attached revised water quality volume calculations for the two proposed basins. 4. We have noted on the plans,the need to uncover and inspect the 24"culvert on site. In regards to the Nutmeg Road culvert,the need for inspection and possible replacement of this culvert should not be the responsibility of the individual lot developer. This culvert collects runoff from an extensive area,and if there was a concern with the condition of : i this culvert,then it should have been addressed at the subdivision stage. To put the burden of inspection and possible replacement of this culvert on the developer of lot 17 is unfair. • 5. Appropriate measures have been integrated into the design plans for the treatment of the • storm water runoff from the site. 6. We understand that WPCA approval will be required,and the appropriate application will be submitted once P&Z has acted on the project. 7. We will work to address any additional engineering comments as they become available. If you have any questions,please feel free to call. Sincerely, Galen Semprebon,P.E. Executive Vice President C:Marcia Banach : Jeff Doolittle • Enclosures: • Water Quality Calculations G&S Scrap Metal,Inc. 444 Nutmeg Road North South Windsor, Connecticut February 26,2008 Two water quality basins have been integrated into the design to provide primary treatment of storm water runoff from paved areas of the site. The two basins will collect runoff from most of the paved areas. The remaining paved areas not draining into either of the proposed water quality basins will be treated in a gently sloping drainage swale along the south side of the site. The smaller of the two water quality basins is located on the northwest comer of the proposed building,and will collect runoff from the loading dock area. This basin will collect runoff from a total of 17,800 S.F.of area,which includes 15,000 S.F.of impervious area and 2,800 S.F.of pervious area(basin and adjacent side slopes). The required water quality volume calculations are as follows: WQV=(1")(R)(A)/12 R=0.05+0.009(I) I=84.3% R=0.05+0.009(84.3)=0.81 WQV=(1")(0.81)(0.41)/12=0.0277 AC.FT.=1,205 CF(Required) The total WQV provided=1,875 CF. The larger of the two water quality basins is located along the north side of the property,and will collect runoff from the storage yards including the steel yard. This basin will collect runoff from a total of 121,900 S.F.of area,which includes 102,650 S.F.of impervious area and 19,250 S.F.of pervious area(basin and adjacent side slopes).The required water quality volume calculations area as follows: WQV=(1")(R)(A)/12 R=0.05+0.009(I) I=84.21% R=0.05+0.009(84.21)=0.81 WQV=(1"x0.81)(2.80)/12=0.189 AC.FT.=8,233 CF(Required) The total WQV provided= 13,950 CF. Both basins will provide significant water quality benefits for the site. As an additional measure in -particular to-control-any floatable-materiaI that-may make it through-the-basins,a treatment-structure-is- proposed on the outlet from the two basins. MEMORANDUM To: South Windsor Inland Wetland/Conservation Commission. From: Jeffrey H. Folger—Environmental Planner/Conservation Officer Date: February 27, 2008 Re: Appl. 08-07P Review of the proposed G&S Scrap Metal site plan. Revised plans dated 02/26/08 The project is to create an industrial building, storage area, and parking lot on 8.5 acres, and a second building lot of 1.5 acres. Proposed wetland disturbance is estimated to be 70 sgft and disturbance within the URA is estimated at 83,095 sqft. Site: The site is located in the Bancroft Brook watershed. The site is comprised 10 acres. Currently the site is an early to mid successional field on the western portion and a mature hardwood forest on the eastern portion of the site. The site was cleared in the late 80s as part of work associated with an earlier subdivision was approval. The site is flat with very little change in elevation. Minor grading and clearing were done in the 1980's as well as eliminating a drainage ditch that was present at the time. Wetlands: The wetlands on the site would be characterized as an intermittent watercourse, shallow marsh and a forested wetland. Wetland flagging shown on the plan appears to be accurate. The forested area in the eastern portion is a mix of various hardwood species including swamp white oak,red maple, and black gum. The understory is moderate with sweet pepperbush and blueberry present. The wetland portion occurs in the center of the stand with a forested buffer of between 80 to 150 feet present to the west. The forested area adjacent to the wetland provides considerable shade to the wetland which prevents desiccation of the wetland due to evaporation. The soils are homogeneous medium grain sands with very little moisture holding capacity. The hydrology has been altered in the general area that has resulted in a reduction of the groundwater table in a number of areas within the site and on adjacent parcels. Despite this alteration the forested wetland within the woodlot remains viable, with wetland indicator species present. Main functions of this wetland are groundwater recharge and wildlife habitat. A man-made drainage ditch that was built in the late 1980's has developed into a watercourse that conveys groundwater from the site. This watercourse empties into a shallow marsh that was also man-made. The marsh persists for most of the growing season. This wetland conveys water from the site, across Nutmeg Road and continues to the west. Main functions of these wetlands are groundwater exfiltration(ditch), stormwater conveyance, flood storage,nutrient and sediment attenuation, and wildlife habitat. Stormwater: No detention is proposed. Stormwater quality is proposed using two biofilters, a wet basin on the northern portion of the site and a 400 foot grassed swale on the southern portion of the site. The wet basin discharges into a swirl chamber to trap floatables that escape the basin. The northern drainage reaches the basin via sheet flow across the parking lot into the basin. Traphoods are proposed in all catchbasins. Impacts: The soils listed on the site report are Windsor(WvA) 0 to 3% slopes and Ninagret(NnA) 0 to 3% slopes. These soils have an erosion potential listed as low. Perimeter controls appear to be adequate to contain sediments from construction activities. The proposed limit of clearing west of the wooded wetland on the eastern portion of the site is designed to preserve the shade value of trees adjacent to the wetland. The horizontal separating distance is the estimated vertical height of trees (50 feet)which will continue to provide shade and minimize evaporation within the wetland during summer months. The level of the bottom of the stormwater basin approaches the elevation of the adjacent watercourse, so water levels should be adequate to maintain wetland vegetation. The structure and the adjacent structure should provide adequate water quality renovation. Stream side vegetation should remain to provide shading to the watercourse. �o.N N BE,q y n F Town O-P Soath ?V O C , U 1540 SULLIVAN AVENUE • SOUTH WINDSOR, CT 06074 SOR•co TELEPHONE (860) 644-2511 Date: February 13, 2008 To: Design Professionals 425 Sullivan Avenue South Windsor, CT 06074 From: Jeffrey H. Folger Environmental Planner Town of South Windsor Re: Appl. #08-08P Review of the G&S Scrape Metal site plan, 444 Nutmeg Road North plans dated 02/05/08. I have reviewed the site plans for the proposed Jay's site plan with the following additional comments 1. In reviewing the elevation of the outlet structure in the basin and the elevation of the basin bottom, it appears that the bottom of the basin is one foot higher than the outlet pipe that goes under Nutmeg Road. How does this situation provide for residence time for water quality renovation? cc. Town Engineer Town Planner IWA/CC 10NN SC O 70� Ole siou� :�i� G U rl 1540 SULLIVAN AVENUE • SOUTH WINDSOR, CT 06074 f�OSOR-CO TELEPHONE (860) 644-2511 Date: February 8, 2008 To: Design Professionals 425 Sullivan Avenue South Windsor, CT 06074 From: Jeffrey H. Folger Environmental Planner Town of South Windsor Re: Appl. #08-08P Review of the G&S Scrape Metal site plan, 444 Nutmeg Road North plans dated 02/05/08. I have reviewed the site plans for the proposed Jay's site plan with the following initial comments 1. Please show the limit of clearing. 2. Portions of the Phase I concrete steel yard encroach into the upland review area to within 15 feet of the wetland boundary. The proposed Phase II storage yard significantly encroaches into the upland review area to within 20 feet of the wetland at several points and within 5 feet from the wetland boundary at one point. This area is mature hardwood forest which provides high quality wildlife habitat and shade to the wetland. The proposed activity would require the removal of one third of the total area that is currently mature forest on the site. The western portion of the forest up to the wetland would be entirely removed. This would significantly increase the evaporation rate within the wetland. Since the soils present are comprised of uniform medium sands with very little moisture holding capacity,this activity would cause the wetland to prematurely dry out in the spring. A significant portion of the mature hardwood forest within the upland review area should remain to prevent loss of soil moisture to the wetland and maintain forested wildlife habitat. 3. A fence is proposed to be constructed that would bisect the wetland. This would act as a significant impediment to wildlife using the wetland area. Please reposition the fence along the limit of clearing. cc. Town Engineer Town Planner IWA/CC SO*N 8 _ 1540 SULLIVAN AVENUE• SOUTH WINDSOR, CT 06074 TELEPHONE(860) 644-2511 March 6,2008 David A. Brown G&S Scrap Metal 994 Farmington Ave West Hartford, CT 06107 RE: Appl. #08-05P-G&S Scrap Metal Dear Mr. Brown, At the March 5, 2008 regular meeting, the Inland Wetlands Agency/Conservation Commission approved Appl. #08-05P — G&S Scrap Metal — 444 Nutmeg road Inland Wetland/Conservation Commission application for the construction of an industrial building, parking and storage yard, and associated improvements on property located northerly of Governors Highway and easterly of Nutmeg Road North. Industrial(1)Zone. This approval is subject to the following conditions: 1. The final approved copy of the entire set of plans and this letter reproduced thereon must be submitted to the Planning Department. This must be completed within 65 days of approval prior to any construction activity on the site. Plans submitted to Planning & Zoning Commission shall be considered having met this requirement. 2. The application shall indemnify and hold harmless the Town of South Windsor against any liability,which might result from the proposed operation or use. 3. The permit is valid for five years and shall expire on March 5, 2013. It is the landowners)/applicant(s) responsibility to track expiration dates and notify the Commission of a renewal request at least 65 days prior to expiration. 4. All approvals required must be obtained and submitted prior to any activity on the site. 5. A contact person shall be identified on the plans. 6. We recommend a bond in the amount of$20,000 be submitted to the Planning_ &Zoning Commission for compliance with erosion and sediment control measures and a bond in the amount of$25,000 for storm water structures. 7. Grading needs to be eliminated on southwest corner of building and natural vegetation must be retained. Final design to be approved by Town Staff.