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18-15P Monroe Tractor IWA
RECEIVED 1 ( 't)D 331 M�lZ i i TOWN OF SOUTH WINDSOR Sau"1Mintlaor INLANR\%TLANUv ACFNCY INLAND WETLANDS, WATERCOURSES AND CONSERVATIO CONS[RVAUATHYN C®�v1MISSION Application# U / Date Received ' g 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 VII—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: Monroe Tractor Address: c/o: Design Professionals, Inc. 21 Jeffrey Drive, South Windsor, CT 06074 Phone: (home) (work)860-291-8755 (email) d1abonte(c0pinc.co B. Legal owner's name: C: P. D Pro Pn _rtipm I I C, DaniPl's Flactric, Inc-, DPF Praperti _s, I I C. Address c/o: Design Professionals, Inc. 21 Jeffrey Drive, South Windsor, CT 06074 Phone(home) (work) 860-291-8755 (email) dlabonte@dpinc.co (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) Monroe Tractor Project Address 6, 14, and 24 Sandra Drive 1. Contact Person (if further information is needed) Dane LaBonte (work) 860-291-8755 (fax) 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 map# 108 Parcel# 13, 9, 8 Zone 1 7 F. Names of all abutting property owners from records in Town Clerk's office. (use separate sheet if necessary) See Attached sheet 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? W ** (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: Construction of an equipment yard along with associated improvements, including, stormwater management, water quality, landscaping, and lighting (+/- 1.3 acres disturbance).The proposed work will not disturb or impact regulated areas or associated buffers. Construction is expected to begin Spring 2018 and be completed by Fall 2018. 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) none K. Acreage of wetlands and watercourses in regulated areas to be altered: nonce L. Acreage of wetlands and watercourses to be created: none M. Lineal feet of proposed stream alteration: none N. Total land area of project and percentage, which is wetlands: total site area = 3.55 acres inland wetlands and watercourses = none, 0% of site 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.) PM 8 P. The applicant (or designated representative) hereby attests that a sign will be posted at the following location(s) 6. 14, & 24 Sandra Drive By Design Professionals, Inc. Name Dane LaBonte on or bef the following date 10 days prior to scheduled meeting(TBD) Signature: Lu=== These signs must be displayed continuously for at least ten (10) days prior to scheduled meeting (see Regulations, Section 7.3a). The applicant is responsible for maintaining the sign during this period. 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. 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 the application both before and after a final decision has been issued. --7 Signature of Owner of ProptIrty Date Zv Signature of Applicant Date 3 2v Z01 W\IWACCadmin\Forms\1WACC Application 9 JMM WETLAND CONSULTING SERVICES, LLc 23 Horseshoe Ridge Road Newtown,CT 06482 Phone:203-364-0345 Mobile:203-994-3428 james@immwetland.com February 5, 2018 jmmwetland.com Mr. Craig Robbins Monroe Tractor 800A Hartford Turnpike Shrewsbury, MA 01545 RE: Site Investigation 6, 14, 24 Sandra Drive, South Windsor, Connecticut JMM Job#18-2216-SWN-2 Dear Mr. Robbins: As request, JMM Wetland Consulting Services, LLC(JMM) conducted a site investigation at the above-referenced site on February V, 2018. The purpose of the investigation was to verify the absence or the presence of regulated wetland areas in accordance with the State of Connecticut Statutes. The site is located north and west of Sandra Drive in South Windsor, CT. The site is comprised of three lots totaling+/- 3.55-acres. Lot#6 contains an existing industrial building, maintained lawn, landscaped areas, paved parking areas and drives, and forested upland areas while Lots #14 and #24 are currently undeveloped forested lots (see Figure 1, attached). The soil types were found to be both undisturbed and disturbed. The disturbed soils were noted mainly within the previously developed portions of the subject sites (i.e., Lot #6). The undisturbed soils are derived from glacial outwash (i.e., stratified sand and gravel) deposits. The undisturbed "upland type" soils are comprised of the excessively drained Windsor(36) soil series and the moderately well drained Ninigret(21) soil series. Windsor loamy fine sand (36). This series consists of very deep, excessively drained soils formed in sandy water deposited glacial outwash materials. They are nearly level to strongly sloping soils on glaciofluvial terraces, deltas and outwash plains. The soils formed in thick deposits of sand derived mainly from granite, gneiss and quartzite, but in places containing materials from schist and sandstone. The sand is poorly graded; medium sand is generally l as i wwb. tntae/r snit swr�s•randy•sat ftat rN oesnl ysm 0 Nai(on can"rt"**a sopmom 0 crs 3ffWY Mr. Craig Robbins 4, 14, 24 Sandra Drive, South Windsor, CT _T February 5, 2018 imm Page 2 dominant and typically contains little or no gravel. Typically, these soils have a dark brown loamy sand surface layer 7 inches thick. The subsoil from 7 to 28 inches is yellowish brown loamy sand. The substratum from 28 to 60 inches is light yellowish brown sand. Ninigret fine sandy loam (21). This series consists of very deep moderately well drained soils formed in a coarse-loamy mantle underlain by sandy water deposited glacial outwash materials. They are nearly level to gently sloping soils on glaciofluvial landforms, typically in slight depressions and broad drainage ways. The soils formed in loamy over stratified sandy and gravelly outwash derived from a variety of acid rocks. Typically, these soils have a very dark grayish brown fine sandy loam surface layer 8 inches thick. The subsoil from 8 to 26 inches is yellowish brown fine sandy loam with mottles below 16 inches. The substratum from 26 to 60 inches is mottled, pale brown, loose, stratified loamy sand. Any disturbed upland soils were mapped as the Udorthents (308) soil mapping complex. Udorthents (308). This soil mapping unit consists of well drained to moderately well drained soils that have been altered by cutting, filling, or grading. The areas either have had two feet or more of the upper part of the original soil removed or have more than two feet of fill material on top of the original soil. Udorthents or Made Land soils can be found on any soil parent material but are typically fluvial on glacial till plains and outwash plains and stream terraces. JMM carefully reviewed all three lots with the use of a hand-held soil auger and spade, to a minimum depth of 24-inches. It was determined that no poorly or very poorly drained soils (i.e. inland wetland regulated areas) or watercourses were identified on any of the three lots. Please call us if you have any questions on the above or need further assistance. Respectfully submitted, JMIM WETLAND CONSULM NG SERVICES,LLC James M. McManus, MS, CPSS Certified Professional Soil Scientist(No. 15226) Attachments:Figures 1,NRCS Web Soil Survey RGURE 1: 6, 14, 24 Sandra Drive, South Windsor, CT rown GIS Photo Showing the Property Boundaries. Town of South Windsor Geographic Information System (GIS) �+ O Pz � rl f i to �� _ �Ytxyt a�"�•L f �� .. §� �3-; � � - �-•wry, ��',4P _..t .� x4 kt431it � e tom` 1 �� �•"1 i N MAP DISCLAIMER- NOTICE OF LIABILITY Approximate Scale: 1 inch=200 feet This map is for assessment purposes only. It is not for legal description W r or conveyances.All information is subject to verification by any user. fl 200 The Town of South Windsor and its mapping contractors assume no Feet legal responsibility for the information contained herein. S ::11 ::11 �� ::11 :.111 EL 111 L 11 :•I,11 dU11 Y. L�A1Mr c ` , i ' oicwE ry :. - s 36C; c _ O E. 306 v �LU im f• mw—yR +{ 1 W(.J I ....'re.{�: _ ;{Rr .,4 R I♦ I 'a. .'� 4 •..k V (° - , t � pB 08 r 304_ 108 I • �306•- : z 1 1• 1 Soil Map—State of Connecticut (6-14-24 Sandra Drive,South Windsor,CT) MAP LEGEND MAP INFORMATION Area of Interest(AOI) Spoil Area The soil surveys that comprise your AOI were mapped at o Area of Interest(AOI) Stony Spot 1:12,000. Solis Very Stony Spot Warning:Soil Map may not be valid at this scale. ® Soil Map Unit Polygons it Wet Spot Enlargement of maps beyond the scale of mapping can cause Soil Map Unit Lines misunderstanding of the detail of mapping and accuracy of soil 6 other line placement.The maps do not show the small areas of Soil Map Unit Points g Special Line Features contrasting soils that could have been shown at a more detailed .� Special Point Features scale. Blowout Water Features _ Streams and Canals Please rely on the bar scale on each map sheet for map ® Borrow Pit measurements. Transportation Clay spot ++4 Rails Source of Map: Natural Resources Conservation Service Closed Depression Web Soil Survey URL: �r Interstate Highways Coordinate System: Web Mercator(EPSG:3857) Gravel Pit US Routes Maps from the Web Soil Survey are based on the Web Mercator �y Gravelly Spot Major Roads projection,which preserves direction and shape but distorts distance and area.A projection that preserves area,such as the 0 Landfill Local Roads Albers equal-area conic projection,should be used if more A. Lava Flow Background accurate calculations of distance or area are required. 4k Marsh or swamp ■ Aerial Photography This product is generated from the USDA-NRCS certified data as of the version date(s)listed below. At Mine or Quarry Soil Survey Area: State of Connecticut o Miscellaneous Water Survey Area Data: Version 16,Sep 16,2017 * Perennial water Soil map units are labeled(as space allows)for map scales V Rock Outcrop 1:50,000 or larger. + Saline Spot Date(s)aerial images were photographed: Mar 28,2011—Apr 18,2011 Sandy Spot The orthophoto or other base map on which the soil lines were ,W Severely Eroded Spot compiled and digitized probably differs from the background imagery displayed on these maps.As a result,some minor () sinkhole shifting of map unit boundaries may be evident. Slide or Slip Sodic Spot Natural Resources Web Soil Survey 1/31/2018 Conservation Service National Cooperative Soil Survey Page 2 of 3 Soil Map—State of Connecticut 6-14-24 Sandra Drive,South Windsor,CT Map Unit Legend Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI 9 Scitico,Shaker,and Maybid 1.3 1.6% soils 13 Walpole sandy loam,0 to 3 8.7 10.3% percent slopes 21A Ninigret and Tisbury soils,0 to 17.6 20.8% 5 percent slopes 23A Sudbury sandy loam,0 to 5 8.5 10.1% percent slopes 25B Brancroft silt loam,3 to 8 7.2 8.5% percent slopes 28B Elmridge fine sandy loam,3 to 5.8 6.8% 8 percent slopes 36A Windsor loamy sand,0 to 3 7.4 8.7% percent slopes 36B Windsor loamy sand,3 to 8 7.8 9.2% percent slopes 36C Windsor loamy sand,8 to 15 14.4 17.0% percent slopes 108 Saco silt loam 3.4 4.0% 304 Udorthents,loamy,very steep 0.2 0.2% 306 Udorthents-Urban land 2.3 2.7% complex Totals for Area of Interest 84.4 100.0% Natural Resources Web Soil Survey 1/31/2018 Conservation Service National Cooperative Soil Survey Page 3 of 3 P.O.BOX 1167 21 JEFFREY DRIVE SOUTH WINDSOR,CT 06074 PHONE: 860.291.8755 FAX: 860.291.8757 www.designprofessionalsinc.com CIVIL & TRAFFIC ENGINEERS / PLANNERS / SURVEYORS / GIS ANALYSTS / LANDSCAPE ARCHITECTS 5erwng Connecticut, Massachusetts, t Rhode/5/and • March 21,2018 Re: Monroe Tractor 6, 14, and 24 Sandra Drive : Conservation Commission, and Planning and Zoning Applications • Dear Abutting Property Owner: In accordance with Section 7.3.b of the "South Windsor Inland Wetlands, Watercourses, and Conservation Regulations," and Section 8.2.0 of the "South Windsor Zoning Regulations," you are hereby notified that an applications have been filed on the property located at 6, 14, and 24 Sandra Drive, abutting your property, which will be the subject of meetings by the Conservation Commission, and Planning and Zoning Commission. The applications and plans are on file with : the South Windsor Planning Department. : As an abutting property owner you are invited to the hearing(s)/meeting(s) to ask questions and/or give comments, however, you are not required to attend. You may also submit written comments regarding the applications prior to the meeting if you so desire. For further information regarding the specific hearing dates of the applications, please the South Windsor Planning Department at 860-644-2511. If you have any questions regarding the specifics of the plans, please feel free to contact our office at 860-291-8755. Thank you. Sincerely, DESIGN PROFESSIONALS, INC. : Peter R. DeMallie President • Cc: Town of South Windsor Client • TOWN OF SOUTH WINDSOR,CONNECTICUT 6,14,24 Sandra Drive Abbuters List Parcel ID Site Address Owner Name Mailing Address Mailing City Mailing State Mailing Zip 79900040 40 SANDRA DRIVE CHARBONNEAU ANDRE L 10 ABBE RD SOUTH WINDSOR CT 06074 50300075 75 KIMBERLY DRIVE S A S HOLDINGS LLC 18 LOOKOUT LANDING ELLINGTON CT 06029 50300080 80 KIMBERLY DRIVE LINBOB LLC 80 KIMBERLY DR SOUTH WINDSOR CT 06074 66600032 32 OLD PARISH DRIVE GRIVERS STANLEY J JR&LISA M 32 OLD PARISH DR SOUTH WINDSOR CT 06074 66600040 40 OLD PARISH DRIVE MOORES EARL TR&JANET TR 40 OLD PARISH DRIVE SOUTH WINDSOR CT 06074 66600050 50 OLD PARISH DRIVE BOUFFARD JOSEPH M 50 OLD PARISH DR SOUTH WINDSOR CT 06074 32800007 7 FITCH MEADOW LANE MELINOSKY DAVID T 7 FITCH MEADOW LANE SOUTH WINDSOR CT 06074 32800005 5 FITCH MEADOW LANE CHAN MICHAEL W& 5 FITCH MEADOW LANE SOUTH WINDSOR CT 06074 32800011 11 FITCH MEADOW LANE MOD[ FENIL 11 FITCH MEADOW LANE SOUTH WINDSOR CT 06074 32800014 14 FITCH MEADOW LANE WILLIS AMANDA M&MATTHEW J 14 FITCH MEADOW LANE SOUTH WINDSOR CT 06074 32800015 15 FITCH MEADOW LANE PARIKH MANS[ 15 FITCH MEADOW LANE SOUTH WINDSOR CT 06074 32800020 20 FITCH MEADOW LANE CASAOL HERMAN 20 FITCH MEADOW LANE SOUTH WINDSOR CT 06074 32800021 21 FITCH MEADOW LANE SANDERS BRENDAJ 21 FITCH MEADOW LANE SOUTH WINDSOR CT 06074 32800022 22 FITCH MEADOW LANE BUREK BOGDAN&GRAZYNA T- 22 FITCH MEADOW LA SOUTH WINDSOR CT 06074 32800024 24 FITCH MEADOW LANE OBIECHIE ONYEKA 2710 PATRIOT DR MELISSA TX 75454-2488 32800026 26 FITCH MEADOW LANE AWALE MUSSE 0 26 FITCH MEADOW LN SOUTH WINDSOR CT 06074 32800027 27 FITCH MEADOW LANE TRELA MARIE 27 FITCH MEADOW LANE SOUTH WINDSOR CT 06074 32800028 28 FITCH MEADOW LANE PATLOLLA SANTOSH K& 28 FITCH MEADOW LANE SOUTH WINDSOR CT 06074 32800032 32 FITCH MEADOW LANE WATTS MARJORIE 32 FITCH MEADOW LN SOUTH WINDSOR CT 06074 32800035 35 FITCH MEADOW LANE VU HUY&KHONESAVANH 35 FITCH MEADOW LANE SOUTH WINDSOR CT 06074 32800036 36 FITCH MEADOW LANE REGAN HELEN T 36 FITCH MEADOW ROAD SOUTH WINDSOR CT 06074 32800038 38 FITCH MEADOW LANE PHAM XUAN MAI T& 38 FITCH MEADOW LANE SOUTH WINDSOR CT 06074 32800040 40 FITCH MEADOW LANE SEMINO BARBARA A TRUSTEE P 0 BOX 1331 GLASTONBURY CT 06033 32800044 44 FITCH MEADOW LANE PATEL TEJAS&DHARA 44 FITCH MEADOW LANE SOUTH WINDSOR CT 06074 32800045 45 FITCH MEADOW LANE MULROY NANCY 45 FITCH MEADOW LANE SOUTH WINDSOR CT 06074 32800048 48 FITCH MEADOW LANE SCOTT KRISTEL-ANN& 48 FITCH MEADOW LN SOUTH WINDSOR CT 06074 32800049 49 FITCH MEADOW LANE TERRY SALLY A 49 FITCH MEADOW LANE SOUTH WINDSOR CT 06074 32800052 52 FITCH MEADOW LANE ROSSETTI NICOLE - 52 FITCH MEADOW LANE SOUTH WINDSOR CT 06074 32800055 55 FITCH MEADOW LANE BRENNAN DONNA L 55 FITCH MEADOW ROAD SOUTH WINDSOR CT 06074 32800056 56 FITCH MEADOW LANE SFREDDO DONALD 56 FITCH MEADOW LANE SOUTH WINDSOR CT 06074 32800059 59 FITCH MEADOW LANE CATALDI NANCY SANDRA 59 FITCH MEADOW LANE SOUTH WINDSOR CT 06074 32800060 60 FITCH MEADOW LANE HUNTER JARRETT 60 FITCH MEADOW LANE SOUTH WINDSOR CT 06074 32800062 62 FITCH MEADOW LANE GIL EDUARDO S&SANDRA P 62 FITCH MEADOW LANE SOUTH WINDSOR CT 106074 G:\jobs\4020\Docs\Applications\Abutters\4020 Abbuters_Mailing_List.xls 3/5/2018 TOWN OF SOUTH WINDSOR,CONNECTICUT 6,14,24 Sandra Drive Abbuters List Parcel ID Site Address Owner Name Mailing Address Mailing City Mailing State Mailing Zip 32800064 64 FITCH MEADOW LANE SRINIVASACHARI VIJAY 64 FITCH MEADOW LANE SOUTH WINDSOR CT 06074 32800065 65 FITCH MEADOW LANE VEERAPANENI KRISHNA CHAITANYA 65 FITCH MEADOW LANE SOUTH WINDSOR CT 06074 32800066 66 FITCH MEADOW LANE BRETZ JAMES A&LISA M 66 FITCH MEADOW LANE SOUTH WINDSOR CT 06074 32800068 68 FITCH MEADOW LANE GIANSIRACUSA PAUL S JR&ROSALIE J 68 FITCH MEADOW LANE SOUTH WINDSOR CT 106074 32800069 69 FITCH MEADOW LANE PICHAY DUANE D&JOCELYN R 69 FITCH MEADOW LANE SOUTH WINDSOR CT 06074 32800070 70 FITCH MEADOW LANE DRAKIOTES GARNET&CLOUGH LINDA M 1126 CORRINA ROAD WAKE FOREST NC 27587-0000 G:\obs\4020\Docs\Applications\Abutters\4020 Abbuters_Mailing_List.xls 3/5/2018 CHARBONNEAU ANDRE L S A S HOLDINGS LLC LINBOB LLC 10 ABBE RD 18 LOOKOUT LANDING 80 KIMBERLY DR SOUTH WINDSOR,CT 06074 ELLINGTON, CT 06029 SOUTH WINDSOR,CT 06074 GRIVERS STANLEY J JR& LISA M MOORES EARL TR&JANET TR BOUFFARD JOSEPH M 32 OLD PARISH DR 40 OLD PARISH DRIVE 50 OLD PARISH DR SOUTH WINDSOR, CT 06074 SOUTH WINDSOR,CT 06074 SOUTH WINDSOR,CT 06074 MELINOSKY DAVID T CHAN MICHAEL W& MOM FENIL 7 FITCH MEADOW LANE 5 FITCH MEADOW LANE 11 FITCH MEADOW LANE SOUTH WINDSOR,CT 06074 SOUTH WINDSOR, CT 06074 SOUTH WINDSOR,CT 06074 WILLIS AMANDA M & MATTHEW 1 PARIKH MANSI CASAOL HERMAN 14 FITCH MEADOW LANE 15 FITCH MEADOW LANE 20 FITCH MEADOW LANE SOUTH WINDSOR,CT 06074 SOUTH WINDSOR, CT 06074 SOUTH WINDSOR,CT 06074 SANDERS BRENDA J BUREK BOGDAN &GRAZYNA T OBIECHIE ONYEKA 21 FITCH MEADOW LANE 22 FITCH MEADOW LA 2710 PATRIOT DR SOUTH WINDSOR,CT 06074 SOUTH WINDSOR,CT 06074 MELISSA,TX 75454-2488 AWALE MUSSE 0 TRELA MARIE PATLOLLA SANTOSH K& 26 FITCH MEADOW LN 27 FITCH MEADOW LANE 28 FITCH MEADOW LANE SOUTH WINDSOR, CT 06074 SOUTH WINDSOR, CT 06074 SOUTH WINDSOR,CT 06074 WATTS MARJORIE VU HUY&KHONESAVANH REGAN HELEN T 32 FITCH MEADOW LN 35 FITCH MEADOW LANE 36 FITCH MEADOW ROAD SOUTH WINDSOR, CT 06074 SOUTH WINDSOR,CT 06074 SOUTH WINDSOR,CT 06074 PHAM XUAN MAI T& SEMINO BARBARA A TRUSTEE PATEL TEJAS&DHARA 38 FITCH MEADOW LANE P 0 BOX 1331 44 FITCH MEADOW LANE SOUTH WINDSOR,CT 06074 GLASTONBURY,CT 06033 SOUTH WINDSOR,CT 06074 MULROY NANCY SCOTT KRISTEL-ANN & TERRY SALLY A 45 FITCH MEADOW LANE 48 FITCH MEADOW LN 49 FITCH MEADOW LANE SOUTH WINDSOR,CT 06074 SOUTH WINDSOR,CT 06074 SOUTH WINDSOR,CT 06074 ROSSETTI NICOLE BRENNAN DONNA L SFREDDO DONALD 52 FITCH MEADOW LANE 55 FITCH MEADOW ROAD 56 FITCH MEADOW LANE SOUTH WINDSOR, CT 06074 SOUTH WINDSOR, CT 06074 SOUTH WINDSOR,CT 06074 1 CATALDI NANCY SANDRA HUNTER JARRETT GIL EDUARDO S&SANDRA P 59 FITCH MEADOW LANE 60 FITCH MEADOW LANE 62 FITCH MEADOW LANE SOUTH WINDSOR,CT 06074 SOUTH WINDSOR, CT 06074 SOUTH WINDSOR, CT 06074 SRINIVASACHARI VIJAY VEERAPANENI KRISHNA CHAITANYA BRETZ JAMES A& LISA M 64 FITCH MEADOW LANE 65 FITCH MEADOW LANE 66 FITCH MEADOW LANE SOUTH WINDSOR, CT 06074 SOUTH WINDSOR,CT 06074 SOUTH WINDSOR,CT 06074 GIANSIRACUSA PAUL S JR& ROSALIE J PICHAY DUANE D&JOCELYN R DRAKIOTES GARNET&CLOUGH LINDA 68 FITCH MEADOW LANE 69 FITCH MEADOW LANE M SOUTH WINDSOR,CT 06074 SOUTH WINDSOR, CT 06074 1126 CORRINA ROAD WAKE FOREST, NC 27587-0000 �'� Stormwater Management Report Monroe Tractor 6, 14 & 24 Sandra Drive South Windsor, CT 1�1111111rr�r .`0 OF CONN��i NFP F� 2 •:cENSSO- ��: S��NAL 0NG� � �rrrrrll1111`� Prepared by: Design Professionals, Inc. 21 Jeffrey Drive, PO Box 1167 South Windsor, CT 06074 March 20, 2018 � Table of Contents Introduction Pre-Development Site Conditions Post-Development Site Conditions Analysis of Results Water Quality Conclusion Appendices FEMA Flood Insurance Rate Map (FIRM) NRCS Hydrologic Soil Group (HSG) Map Water Quality Volume Calculations Record plan entitled "Plot Plan, Lot 6 &7,40 Sandra Drive, South Windsor, Connecticut"prepared by J.R. Russo &Associates, dated September 18, 2002, revised through March 7, 2003. StreamStats Reports HydroCAD Report Drainage Area Maps Pre-Development Drainage Map Post-Development Drainage Map Introduction Monroe Tractor sells and services agricultural and construction equipment and is proposing to purchase the subject site comprised of three parcels located at 6, 14 & 24 Sandra Drive to develop the two unused wooded parcels at 14 &24 Sandra Drive into an equipment yard to be connected to the parcel at 6 Sandra Drive that currently contains an existing building, parking lot, and associated improvements. For more information, please refer to the enclosed plans. Pre-Development Site Conditions The±3.5-acre subject site currently contains an existing building,parking lot, and associated improvements at 6 Sandra Drive including a stormwater management system that collects stormwater runoff from the parking lot via catch basins and from the roof of the existing building via roof drains and conveys it through pipes to the Town's drainage system in Sandra Drive. The two parcels at 14 & 24 Sandra Drive are wooded and drain uncontrolled from the western boundary to the east to Sandra Drive where stormwater runoff discharges over the existing curb and into the road gutter to be collected by the Town's drainage system in Sandra Drive via two existing catch basins along the frontage of the subject site. The enclosed Federal Emergency Management Agency (FEMA) Flood Rate Insurance Map (FIRM) shows the subject site is outside of any flood zones. The enclosed United States Department of Agriculture(USDA)Natural Resources Conservation Services (NRCS)Hydrologic Soil Group (HSG)Map shows the area of the proposed equipment yard as primarily Group C soils. For more information,please refer to the enclosed Pre-Development Drainage Map. Post-Development Site Conditions The subject project proposes to construct a±1-acre equipment yard on the parcels at 14 & 24 Sandra Drive. The drainage of the equipment yard is proposed to mimic the current drainage pattern of the existing site by sloping from the western boundary to the east toward Sandra Drive. A swale is proposed along the eastern boundary of the site to intercept the stormwater runoff from the equipment yard. A type C-L catch basin within the swale is designed to function as an outlet control structure by elevating the inlet grate above the ground surface of the swale. The elevation of the inlet grate is designed so as to provide the required water quality volume below the inlet grate, while allowing the swale to drain during larger storms including the 100-year storm without overtopping into the equipment yard or street. Once captured by the catch basin, stormwater runoff is proposed to be piped into an existing catch basin in Sandra Drive to be conveyed to the Town's drainage system. For more information, please refer to the enclosed Post-Development Drainage Map. Analysis of Results The pre-development and post-development conditions were analyzed using HydroCAD consistent with National Resource Conservation Service (NRCS) hydrology methods. The pre-development and post-development peak discharge rates are below. 2- ear 10- ear 25- ear 100- ear PRE cfs 0.72 1.71 2.30 3.41 POST(cfs) 1.69 3.04 3.70 4.85 Change (cfs) +0.97 +1.33 +1.40 +1.44 No adverse impacts are expected from the nominal peak discharge flow rate increases. As previously stated, stormwater runoff from the site in both the existing and proposed conditions discharges into the Town's drainage system in Sandra Drive. This drainage system routes to the southern cul-de-sac of Sandra Drive and through an easement on the parcel located at 40 Sandra Drive to a flared end where the stormwater runoff discharges to a wetland finger associated with Bancroft Brook. The flared end discharge is located toward the tail end of the Bancroft Brook drainage area as it is downstream of 89% of the total drainage area(1.52 square miles of the total 1.7 square miles). Bancroft Brook travels ±0.8 miles downstream from Sandra Drive to Stoughton Brook which then travels another±0.8 miles before discharging to the Connecticut River. The junction of Bancroft Brook and Stoughton Brook is located near the approximate hydraulic midpoint of the Stoughton Brook drainage area as it is downstream of 47% of the total drainage area(1.7 square miles of the total 3.6 square miles). It is preferential to allow an increase in peak discharge rates toward the tail end of drainage areas in an effort to move stormwater runoff from these areas through the receiving watercourse quickly and early,before the peak discharge of the overall drainage area. Detaining stormwater in these areas would delay the peak discharge to occur later and more closely in time to the peak discharge of the overall drainage area which would cause the peak discharge rate of the overall drainage area to increase proportionally. For more information, refer to the enclosed record plan and StreamStats reports. Water Quality The proposed swale and outlet control structure are designed to provide the required water quality volume below the inlet great as required by the Connecticut Stormwater Quality Manual. For more information, please refer to the enclosed Water Quality Volume Calculations. Conclusion The proposed stormwater management system as discussed herein and shown on the referenced plans is appropriate for the proposed development on the subject site, is consistent with Town and State requirements, and should not pose significant detrimental impacts to the environment. Nationale Flood Hazard Layer FIRMette FEMA A', ; !:I, 41°51'11.29"N SEE FIS REPORT FOR DETAILED LEGEND AND INDEX MAP FOR FIRM PANEL LAYOUT Nit ';�a`9i-Fli�ald'Etevati6ri'�BFh7',. M SPECIAL FLOOD With BFE or Depth+ M HAZARD AREAS Regulatory Floodway zone aE,AD,AN,VE AR N n 0.2%Annual Chance Flood Hazard,Areas T of 1%annual chance flood with average depth less than one foot or with drainage areas of less than one square mile zone x Future Conditions 1%Annual Chance Flood Hazard Zone Area with Reduced Flood Risk due to OTHER AREAS OF Levee.See Notes.Zone I" FLOOD HAZARD Area with Flood Risk due to Levee zone D NO SCREEN Area of Minimal Flood Hazard zone x __. •� ;� ,:_ , ` :;, . ___ Effective LOMRs OTHER AREAS Area of Undetermined Flood Hazard zone D Channel, ,or } STRUCTURE nunww Levee,Dike,Culvert Floodwalm Sewer q GENERAL T C-22iCross Sections with 1%Annual Chance +7.s Water Surface Elevation �, •�' '' 4 �a`�-- Coastal Transect ,^M.,.. Base Flood Elevation Line BFE �M, Itt tL+lvbll1��t1 WC1C�4 wf ' r+ t x ( ) Limit of Study LQ, -Ci H n F Jurisdiction Boundary � "� * s ' V �• — Coastal7ransect Baseline OTHER T_ Profile Baseline FEATURES Hydrographic Feature Digital Data Available N No Digital Data Available Oki MAP PANELS Unmapped d This map complies with FEMA's standards for the use of digital flood maps if it is not void as described below. v The base map shown complies with FEMA's base map accuracy standards M >, The flood hazard information is derived directly from the authoritative NFHL web services provided by FEMA.This ma �t was exported on 3/20/2018 at 1:33:01 PM and does not reflect changes or amendments subsequent to this date and w:..: time.The NFHL and effective information may change or become superseded by new data over time. "► FLz�t C!;ti+Fi " This map image is void if the one or more of the following map a elements do not appear:base map imagery,flood zone labels, \r a y .;� t �` • no legend,scale bar,map creation date,community identifiers, FIRM panel number,and FIRM effective date.Map images for ' a unmapped and unmodernized areas cannot be used for L� regulatory purposes. � ' � -� � �ir ri^ gi al � �C��e, arths eograp�hlcs;ONES Airb�sr ^. -� r,,, �',,D• U 'D ,, G ,`A'#rd RI,,,'IGt`l,a ,,,,,the G1�Userommtanity ` � Feet 1:6,000 41'50'44.49°N 0 250 500 1,000 1,500 2,000 Hydrologic Soil Group—State of Connecticut 3 M � ry M e1069M 69M 41°50'59"N I.. 410 W 59"N r x � Ea F i9 n f � alyd at this scahe: 410 50'54.'N -_ -..-- -- -_. - I ;.,_ ,-_ 41"50 54 N 698850 6W70 690 698910 698930 698950 698970 3 3 Map Scale:1:831 if printed on A portrait(8.5"x 11")sheet. Meters N A0 10 20 40 W Feet 0 40 80 160 240 Map projection:Web Mercator Comer coordinates:WGS84 Edge tics:UTM Zone 18N WCS84 usDA Natural Resources Web Soil Survey 3/18/2018 Conservation Service National Cooperative Soil Survey Page 1 of 4 Hydrologic Soil Group—State of Connecticut MAP LEGEND MAP INFORMATION Area of Interest(AOI) ■ C The soil surveys that comprise your AOI were mapped at 0 Area of Interest(AOI) ■ C/D 1:12,000. Soils ■Soil Rating Polygons D Warning:Soil Map may not be valid at this scale. A p Not rated or not available Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil ® q/p water Features line placement.The maps do not show the small areas of ® B Streams and Canals contrasting soils that could have been shown at a more detailed B/D Transportation scale. ® C ++.+ Rails Please rely on the bar scale on each map sheet for map Interstate Highways measurements. C/D US Routes Source of Map: Natural Resources Conservation Service ® D Web Soil Survey URL: Major Roads Coordinate System: Web Mercator(EPSG:3857) 0 Not rated or not available Local Roads Maps from the Web Soil Survey are based on the Web Mercator Soil Rating Lines Background projection,which preserves direction and shape but distorts •� A distance and area.A projection that preserves area,such as the . Aerial Photography Albers equal-area conic projection,should be used if more AID accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as B/D of the version date(s)listed below. ,y C Soil Survey Area: State of Connecticut C/D Survey Area Data: Version 16,Sep 15,2017 •V Soil map units are labeled(as space allows)for map scales p 1:50,000 or larger. r Not rated or not available Date(s)aerial images were photographed: Sep 29,2013—Oct Soil Rating Points 16,2016 ■ A The orthophoto or other base map on which the soil lines were ■ A/p compiled and digitized probably differs from the background imagery displayed on these maps.As a result,some minor ■ B shifting of map unit boundaries may be evident. ■ BID Natural Resources Web Soil Survey Conservation Service 3/18/2018 National Cooperative Soil Survey Page 2 of 4 Hydrologic Soil Group—State of Connecticut Hydrologic Soil Group Map unit symbol Map unit name Rating Acres in AOI Percent of AOI 21A Ninigret and Tisbury C 1.2 67.3% soils,0 to 5 percent slopes 36A Windsor loamy sand,0 A 0.1 8.3% to 3 percent slopes 3 Windsor loamy sand,8 A 0.4 24.3% to 15 percent slopes Totals for Area of Interest 1.8 100.0% Description Hydrologic soil groups are based on estimates of runoff potential. Soils are assigned to one of four groups according to the rate of water infiltration when the soils are not protected by vegetation, are thoroughly wet, and receive precipitation from long-duration storms. The soils in the United States are assigned to four groups(A, B, C, and D)and three dual classes(A/D, B/D, and C/D). The groups are defined as follows: Group A. Soils having a high infiltration rate(low runoff potential)when thoroughly wet. These consist mainly of deep, well drained to excessively drained sands or gravelly sands.These soils have a high rate of water transmission. Group B. Soils having a moderate infiltration rate when thoroughly wet. These consist chiefly of moderately deep or deep, moderately well drained or well drained soils that have moderately fine texture to moderately coarse texture. These soils have a moderate rate of water transmission. Group C. Soils having a slow infiltration rate when thoroughly wet. These consist chiefly of soils having a layer that impedes the downward movement of water or soils of moderately fine texture or fine texture. These soils have a slow rate of water transmission. Group D. Soils having a very slow infiltration rate(high runoff potential)when thoroughly wet. These consist chiefly of clays that have a high shrink-swell potential, soils that have a high water table, soils that have a claypan or clay layer at or near the surface, and soils that are shallow over nearly impervious material. These soils have a very slow rate of water transmission. If a soil is assigned to a dual hydrologic group(A/D, B/D, or C/D), the first letter is for drained areas and the second is for undrained areas. Only the soils that in their natural condition are in group D-are assigned to dual classes. Natural Resources Web Soil Survey 3/18/2018 Conservation Service National Cooperative Soil Survey Page 3 of 4 Hydrologic Soil Group—State of Connecticut Rating Options Aggregation Method: Dominant Condition Component Percent Cutoff.None Specified Tie-break Rule:Higher t�5na Natural Resources Web Soil Survey 3/18/2018 Conservation Service National Cooperative Soil Survey Page 4 of 4 c . Monroe Tractor March 20, 2018 Water Quality Volume Calculations Per 2004 Connecticut Stormwater Quality Manual, Section 7.4.1: Water Quality Volume (WQV) =(1")(R)(A)/12, where: R=unitless volumetric runoff coefficient=0.05 +0.009(I), where: I=percent impervious cover of drainage area=64% R=0.05 +0.009(I) R=0.05 +0.009(64) R=0.626 A=drainage area in acres= 1.45 acres WQV= (1")(R)(A acres)/12 inches per foot WQV= (1") 0( 626)(1.45 acres)/12 inches per foot WQV=0.07 acre-feet required Proposed The proposed swale provides 0.07 acre-feet of storage below the outlet. QRAW=NUMBER ORAWNB NUMBER ORAWINB NUMBER COMM"NUMBER a9s7 wa�odien .I.w.. wmam= .rawHaw.� waowanmis .aewwc¢.�■•■Im� 10v1R1aRM•llaN IWW111m101• •I•NIVF,MM�f� I•PAIfIMfN►�191Y I�IO1N1111RM��lYY d Ad Ad I.IYr••N•�•, �- � -� � .� � � � � � w,�Y.tAti•ruw � � � �_ � _- .-- � � � ww.�•.�•u..w �_ -- � � � � � � -- ��ir�r.���i,�i � �- Ad g M � � o M Of j/co N � �A� �n� iad i•� S Qn .� � w p� S�YYYYt � mE +i +nw..g �rj N CIA d i GN 9 B d B 1 a E a Ii a 1; a IPA 3 tk ' 4" Hills, all 9!11 ti • � � S�s�'�s � �� J a i � ■� is �• �t s w CCE d d �{ �� � � �••aoof•¢w.. i ��•■a•® {f! I� y till I 1111111 yQ� jig .,� f _ :: t ..: i I� I i+r 1 00 gk ::I i�: 1 J�•; jl x � � �� j ' rl � � �� ai 81 jail is gas ------------ a'; ;� �tiq b a •� •�ii � i 1 I 1, r ; •� - e � s•• �I hw• � x-- , .' � '•,fig I I ._... � /wo ' � , s tj Sa IINAsI !� JJJ J.J�J�JJ S �7.�I � • M • • r a Contributory Area StrearnStats Report Region ID: CRB Workspace ID: CT20180303030320349000 Clicked Point (Latitude, Longitude): 41 .84693, -72.60534 Time: 2018-03-02 22:03:34 -0500 A t Basin Characteristics Parameter Code Parameter Description Value Unit DRNAREA Area that drains to a point on a stream 1.52 square miles Bancroft Brook StreamStats Report Region ID: CRB Workspace ID: CT20180303023221584000 Clicked Point (Latitude, Longitude): 41.83999, -72.61208 Time: 2018-03-02 21:32:36 -0500 aperoff Stook, Basin Characteristics Parameter Code Parameter Description Value Unit DRNAREA Area that drains to a point on a stream 1.7 square miles StreamStats Report Region ID: CRB Workspace ID: CT20180303033926470000 Clicked Point (Latitude, Longitude): 41.84255, -72.62433 Time: 2018-03-02 22:39:41 -0500 7 1 -9xit 'fCQ P � Caper St 1194` Ivers Rd J 1 � p y ngtcrn Ft d �- 1 Windsor Basin Characteristics Parameter Code Parameter Description Value Unit DRNAREA Area that drains to a point on a stream 3.6 square miles 2R . PRE TO STREET PRE STREET Kv 4R: POST TO STREET OST STREET SIP POST TO SWALE SWALE Reach on Llnk Routing Diagram for 4020 Prepared by Hewlett-Packard Company, Printed 3/19/2018 HydroCAD®10.00-20 s/n 09320 0 2017 HydroCAD Software Solutions LLC 4020 Type NI 24-hr 2 Rainfall=3.20" Prepared by Hewlett-Packard Company Printed 3/19/2018 HydroCAD®10.00-20 s/n 09320 ©2017 HydroCAD Software Solutions LLC Page 2 Summary for Subcatchment 1 S: PRE TO STREET Runoff = 0.72 cfs @ 12.66 hrs, Volume= 0.119 af, Depth> 0.82" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-24.00 hrs, dt=0.05 hrs Type III 24-hr 2 Rainfall=3.20" Area (ac) CN Description 1.740 70 Woods, Good, HSG C 1.740 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 34.2 100 0.0250 0.05 Sheet Flow, Sheet flow Woods: Dense underbrush n= 0.800 P2=3.20" 8.7 150 0.0133 0.29 Shallow Concentrated Flow,Shallow Concentrated Flow Forest w/Heavy Litter Kv=2.5 fps 42.9 250 Total Summary for Subcatchment 3S: POST TO STREET Runoff = 0.71 cfs @ 12.09 hrs, Volume= 0.052 af, Depth> 2.17" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type III 24-hr 2 Rainfall=3.20" Area (ac) CN Description 0.100 74 >75%Grass cover, Good, HSG C 0.190 98 Paved parking, HSG C 0.290 90 Weighted Average 0.100 34.48% Pervious Area 0.190 65.52% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 6S: POST TO SWALE Runoff = 1.70 cfs @ 12.52 hrs, Volume= 0.240 af, Depth> 1.98" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-24.00 hrs, dt=0.05 hrs Type III 24-hr 2 Rainfall=3.20" Area (ac) CN Description 0.530 70 Woods, Good, HSG C 0.920 98 Paved parking, HSG C 1.450 88 Weighted Average 0.530 36.55% Pervious Area 0.920 63.45% Impervious Area 4020 Type ///24-hr 2 Rainfall=3.20" Prepared by Hewlett-Packard Company Printed 3/19/2018 HydroCAD®10.00-20 s/n 09320 02017 HydroCAD Software Solutions LLC Paae 3 Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 37.4 100 0.0200 0.04 Sheet Flow, Sheet Flow Woods: Dense underbrush n=0.800 P2=3.20" 1.0 200 0.0250 3.21 Shallow Concentrated Flow,Shallow Concentrated Flow Paved Kv= 20.3 fps 38.4 300 Total Summary for Reach 2R: PRE STREET Inflow Area = 1.740 ac, 0.00% Impervious, Inflow Depth > 0.82" for 2 event Inflow = 0.72 cfs @ 12.66 hrs, Volume= 0.119 of Outflow = 0.72 cfs @ 12.66 hrs, Volume= 0.119 af, Atten= 0%, Lag= 0.0 min Routing by Stor-Ind+Trans method, Time Span=0.00-24.00 hrs, dt=0.05 hrs Summary for Reach 4R: POST STREET Inflow Area= 1.740 ac, 63.79% Impervious, Inflow Depth > 1.54" for 2 event Inflow = 1.69 cfs @ 12.66 hrs, Volume= 0.223 of Outflow = 1.69 cfs @ 12.66 hrs, Volume= 0.223 af, Atten=0%, Lag= 0.0 min Routing by Stor-Ind+Trans method, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Summary for Pond 5P: SWALE Inflow Area= 1.450 ac, 63.45%.Impervious, Inflow Depth > 1.98" for 2 event Inflow = 1.70 cfs @ 12.52 hrs, Volume= 0.240 of Outflow = 1.60 cfs @ 12.66 hrs, Volume= 0.171 af, Atten=6%, Lag= 8.2 min Primary = 1.60 cfs @ 12.66 hrs, Volume= 0.171 of Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Peak Elev= 70.33' @ 12.66 hrs Surf.Area= 0.068 ac Storage= 0.077 of Plug-Flow detention time= 148.0 min calculated for 0.171 of (71%of inflow) Center-of-Mass det. time= 59.0 min ( 899.5-840.6) Volume Invert Avail.Storage Storage Description #1 68.00' 0.089 of Custom Stage Data(Prismatic) Listed below(Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 68.00 0.001 0.000 0.000 69.00 0.030 0.015 0.015 70.00 0.053 0.041 0.057 70.50 0.075 0.032 0.089 Device Routing Invert Outlet Devices #1 Primary 70.20' 24.0"x 36.0" Horiz.Orifice/Grate C= 0.600 4020 Type l/l 24-hr i 0 Rainfall=4.70" Prepared by Hewlett-Packard Company Printed 3/19/2018 HydroCAD®10.00-20 s/n 09320 ©2017 HydroCAD Software Solutions LLC Page 5 Summary for Subcatchment 1 S: PRE TO STREET Runoff = 1.71 cfs @ 12.63 hrs, Volume= 0.261 af, Depth> 1.80" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type III 24-hr 10 Rainfall=4.70" Area (ac) CN Description 1.740 70 Woods, Good, HSG C 1.740 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 34.2 100 0.0250 0.05 Sheet Flow,Sheet flow Woods: Dense underbrush n= 0.800 P2= 3.20" 8.7 150 0.0133 0.29 Shallow Concentrated Flow,Shallow Concentrated Flow Forest w/Heavy Litter Kv=2.5 fps 42.9 250 Total Summary for Subcatchment 3S: POST TO STREET Runoff = 1.15 cfs @ 12.09 hrs, Volume= 0.087 af, Depth> 3.58" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span=0.00-24.00 hrs, dt=0.05 hrs Type III 24-hr 10 Rainfall=4.70" Area (ac) CN Description 0.100 74 >75%Grass cover, Good, HSG C 0.190 98 Paved parking, HSG C 0.290 90 Weighted Average 0.100 34.48% Pervious Area 0.190 65.52% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 6S: POST TO SWALE Runoff = 2.85 cfs @ 12.51 hrs, Volume= 0.406 af, Depth> 3.36" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-24.00 hrs, dt=0.05 hrs Type III 24-hr 10 Rainfall=4.70" Area (ac) CN Description 0.530 70 Woods, Good, HSG C 0.920 98 Paved parking, HSG C 1.450 88 Weighted Average 0.530 36.55% Pervious Area 0.920 63.45% Impervious Area 4020 Type N 24-hr 10 Rainfall=4.70" Prepared by Hewlett-Packard Company Printed 3/19/2018 HydroCAD810.00-20 s/n 09320 02017 HydroCAD Software Solutions LLC Page 6 Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 37.4 100 0.0200 0.04 Sheet Flow,Sheet Flow Woods: Dense underbrush n= 0.800 P2= 3.20" 1.0 200 0.0250 3.21 Shallow Concentrated Flow,Shallow Concentrated Flow Paved Kv=20.3 fps 38.4 300 Total Summary for Reach 2R: PRE STREET Inflow Area= 1.740 ac, 0.00% Impervious, Inflow Depth > 1.80" for 10 event Inflow = 1.71 cfs @ 12.63 hrs, Volume= 0.261 of Outflow = 1.71 cfs @ 12.63 hrs, Volume= 0.261 af, Atten= 0%, Lag= 0.0 min Routing by Stor-Ind+Trans method, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Summary for Reach 4R: POST STREET Inflow Area= 1.740 ac, 63.79% Impervious, Inflow Depth > 2.92" for 10 event Inflow = 3.04 cfs @ 12.52 hrs, Volume= 0.424 of Outflow = 3.04 cfs @ 12.52 hrs, Volume= 0.424 af, Atten= 0%, Lag= 0.0 min Routing by Stor-Ind+Trans method, Time Span=0.00-24.00 hrs, dt=0.05 hrs Summary for Pond 5P: SWALE Inflow Area= 1.450 ac, 63.45% Impervious, Inflow Depth > 3.36" for 10 event Inflow = 2.85 cfs @ 12.51 hrs, Volume= 0.406 of Outflow = 2.83 cfs @ 12.56 hrs, Volume= 0.337 af, Atten= 1%, Lag=2.6 min Primary = 2.83 cfs @ 12.56 hrs, Volume= 0.337 of Routing by Stor-Ind method, Time Span=0.00-24.00 hrs, dt= 0.05 hrs Peak Elev= 70.40'@ 12.56 hrs Surf.Area= 0.070 ac Storage=0.081 of Plug-Flow detention time= 106.2 min calculated for 0.337 of (83%of inflow) Center-of-Mass det. time=40.3 min ( 866.2- 826.0 ) Volume Invert Avail.Storage Storage Description #1 68.00' 0.089 of Custom Stage Data(Prismatic) Listed below(Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 68.00 0.001 0.000 0.000 69.00 0.030 0.015 0.015 70.00 0.053 0.041 0.057 70.50 0.075 0.032 0.089 Device Routing Invert Outlet Devices #1 Primary 70.20' 24.0"x 36.0" Horiz.Orifice/Grate C= 0.600 4020 Type 111 24-hr 10 Rainfall=4.70" Prepared by Hewlett-Packard Company Printed 3/19/2018 HydroCAD®10.00-20 s/n 09320 ©2017 HydroCAD Software Solutions LLC Page 7 Limited to weir flow at low heads Primary OutFlow Max=2.82 cfs @ 12.56 hrs HW=70.40' (Free Discharge) t1=Orifice/Grate (Weir Controls 2.82 cfs @ 1.44 fps) 4020 Type M 24-hr 25 Rainfall=5.50" Prepared by Hewlett-Packard Company Printed 3/19/2018 HydroCADO 10.00-20 s/n 09320 02017 HydroCAD Software Solutions LLC Page 8 Summary for Subcatchment IS: PRE TO STREET Runoff = 2.30 cfs @ 12.61 hrs, Volume= 0.347 af, Depth> 2.39" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type III 24-hr 25 Rainfall=5.50" Area (ac) CN Description 1.740 70 Woods, Good, HSG C 1.740 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 34.2 100 0.0250 0.05 Sheet Flow,Sheet flow Woods: Dense underbrush n= 0.800 P2= 3.20" 8.7 150 0.0133 0.29 Shallow Concentrated Flow,Shallow Concentrated Flow Forest w/Heavy Litter Kv=2.5 fps 42.9 250 Total Summary for Subcatchment 3S: POST TO STREET Runoff = 1.39 cfs @ 12.09 hrs, Volume= 0.105 af, Depth> 4.36" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type III 24-hr 25 Rainfall=5.50" Area (ac) CN Description 0.100 74 >75%Grass cover, Good, HSG C 0.190 98 Paved parking, HSG C 0.290 90 Weighted Average 0.100 34.48% Pervious Area 0.190 65.52% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 6S: POST TO SWALE Runoff = 3.46 cfs @ 12.51 hrs, Volume= 0.498 af, Depth> 4.12" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-24.00 hrs, dt=0.05 hrs Type III 24-hr 25 Rainfall=5.50" Area (ac) CN Description 0.530 70 Woods, Good, HSG C 0.920 98 Paved parking, HSG C 1.450 88 Weighted Average 0.530 36.55% Pervious Area 0.920 63.45% Impervious Area x 4020 Type N 24-hr 25 Rainfall=5.50" Prepared by Hewlett-Packard Company Printed 3/19/2018 HydroCAD®10.00-20 s/n 09320 ©2017 HydroCAD Software Solutions LLC Page 9 Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 37.4 100 0.0200 0.04 Sheet Flow, Sheet Flow Woods: Dense underbrush n= 0.800 P2=3.20" 1.0 200 0.0250 3.21 Shallow Concentrated Flow, Shallow Concentrated Flow Paved Kv=20.3 fps 38.4 300 Total Summary for Reach 2R: PRE STREET Inflow Area= 1.740 ac, 0.00% Impervious, Inflow Depth > 2.39" for 25 event Inflow = 2.30 cfs @ 12.61 hrs, Volume= 0.347 of Outflow = 2.30 cfs @ 12.61 hrs, Volume= 0.347 af, Atten= 0%, Lag= 0.0 min Routing by Stor-Ind+Trans method, Time Span= 0.00-24.00 hrs, dt=0.05 hrs Summary for Reach 4R: POST STREET Inflow Area= 1.740 ac, 63.79% Impervious, Inflow Depth > 3.68" for 25 event Inflow = 3.70 cfs @ 12.52 hrs, Volume= 0.534 of Outflow = 3.70 cfs @ 12.52 hrs, Volume= 0.534 af, Atten= 0%, Lag= 0.0 min Routing by Stor-Ind+Trans method, Time Span= 0.00-24.00 hrs, dt=0.05 hrs Summary for Pond 5P: SWALE Inflow Area= 1.450 ac, 63.45% Impervious, Inflow Depth > 4.12" for 25 event Inflow = 3.46 cfs @ 12.51 hrs, Volume= 0.498 of Outflow = 3.44 cfs @ 12.55 hrs, Volume= 0.428 af, Atten= 1%, Lag= 2.5 min Primary = 3.44 cfs @ 12.55 hrs, Volume= 0.428 of Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Peak Elev= 70.42' @ 12.55 hrs Surf.Area= 0.072 ac Storage= 0.083 of Plug-Flow detention time= 94.7 min calculated for 0.428 of (86%of inflow) Center-of-Mass det. time=36.7 min ( 857.1 - 820.4) Volume Invert Avail.Storage Storage Description #1 68.00' 0.089 of Custom Stage Data(Prismatic) Listed below(Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (acres) (acre-feet) (acre-feet) 68.00 0.001 0.000 0.000 69.00 0.030 0.015 0.015 70.00 0.053 0.041 0.057 70.50 0.075 0.032 0.089 Device Routing Invert Outlet Devices #1 Primary 70.20' 24.0"x 36.0" Horiz. Orifice/Grate C= 0.600 4020 Type l/l 24-hr 25 Rainfall=5.50" Prepared by Hewlett-Packard Company Printed 3/19/2018 HydroCADO 10.00-20 s/n 09320 ©2017 HydroCAD Software Solutions LLC Page 10 Limited to weir flow at low heads Primary OutFlow Max=3.43 cfs @ 12.55 hrs HW=70.42' (Free Discharge) L1=0rifice/Grate (Weir Controls 3.43 cfs @ 1.54 fps) 4020 Type 11124-hr 100 Rainfal1=6.90" Prepared by Hewlett-Packard Company Printed 3/19/2018 HydroCAD010.00-20 s/n 09320 02017 HydroCAD Software Solutions LLC Page 11 Summary for Subcatchment 1 S: PRE TO STREET Runoff = 3.41 cfs @ 12.60 hrs, Volume= 0.508 af, Depth> 3.50" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type III 24-hr 100 Rainfall=6.90" Area (ac) CN Description 1.740 70 Woods, Good, HSG C 1.740 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 34.2 100 0.0250 0.05 Sheet Flow, Sheet flow Woods: Dense underbrush n=0.800 P2=3.20" 8.7 150 0.0133 0.29 Shallow Concentrated Flow, Shallow Concentrated Flow Forest w/Heavy Litter Kv= 2.5 fps 42.9 250 Total Summary for Subcatchment 3S: POST TO STREET Runoff = 1.80 cfs @ 12.09 hrs, Volume= 0.138 af, Depth> 5.72" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type III 24-hr 100 Rainfall=6.90" Area (ac). CN Description 0.100 74 >75%Grass cover, Good, HSG C 0.190 98 Paved parking, HSG C 0.290 90 Weighted Average 0.100 34.48% Pervious Area 0.190 65.52% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 6S: POST TO SWALE Runoff = 4.54 cfs @ 12.51 hrs, Volume= 0.660 af, Depth> 5.46" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type III 24-hr 100 Rainfall=6.90" Area (ac) CN Description 0.530 70 Woods, Good, HSG C 0.920 98 Paved parking, HSG C 1.450 88 Weighted Average 0.530 36.55% Pervious Area 0.920 63.45% Impervious Area 4020 Type M 24-hr 100 Rainfall=6.90" Prepared by Hewlett-Packard Company Printed 3/19/2018 HydroCAD810.00-20 s/n 09320 ©2017 HydroCAD Software Solutions LLC Page 11 Summary for Subcatchment 1 S: PRE TO STREET Runoff = 3.41 cfs @ 12.60 hrs, Volume= 0.508 af, Depth> 3.50" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-24.00 hrs, dt= 0.05 hrs Type III 24-hr 100 Rainfall=6.90" Area (ac) CN Description 1.740 70 Woods, Good, HSG C 1.740 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 34.2 100 0.0250 0.05 Sheet Flow,Sheet flow Woods: Dense underbrush n=0.800 P2= 3.20" 8.7 150 0.0133 0.29 Shallow Concentrated Flow, Shallow Concentrated Flow Forest w/Heavy Litter Kv=2.5 fps 42.9 250 Total Summary for Subcatchment 3S: POST TO STREET Runoff = 1.80 cfs @ 12.09 hrs, Volume= 0.138 af, Depth> 5.72" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-24.00 hrs, dt=0.05 hrs Type III 24-hr 100 Rainfall=6.90" Area (ac). CN Description 0.100 74 >75%Grass cover, Good, HSG C 0.190 98 Paved parking, HSG C 0.290 90 Weighted Average 0.100 34.48% Pervious Area 0.190 65.52% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 6S: POST TO SWALE Runoff = 4.54 cfs @ 12.51 hrs, Volume= 0.660 af, Depth> 5.46" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span=0.00-24.00 hrs, dt= 0.05 hrs Type III 24-hr 100 Rainfall=6.90" Area(ac) CN Description 0.530 70 Woods, Good, HSG C 0.920 98 Paved parking, HSG C 1.450 88 Weighted Average 0.530 36.55% Pervious Area 0.920 63.45% Impervious Area 7 •. 4020 Type 11124-hr 100 Rainfall=6.90" Prepared by Hewlett-Packard Company Printed 3/19/2018 HydroCAD®10.00-20 s/n 09320 ©2017 HydroCAD Software Solutions LLC Page 13 Limited to weir flow at low heads Primary OutFlow Max=4.50 cfs @ 12.55 hrs HW=70.47' (Free Discharge) L1=0rifice/Grate (Weir Controls 4.50 cfs @ 1.69 fps) He C\)*S\4020\4w=d\4020 SW P6,&g Ley POST Roved 3/20/2018 243 PM Lmt S—d 3/20/2015 127 PM Len Saved By dP lbte ......... ............. ....................... 7.......... .......... .......... ........... .......... 0 0 z m 0 0 Ln 0 ........... 0 .......... > 0 z 0> No m m m 0 z 0 M Lf) -TI r .......... 0 "7 0 co > 0 M m 77— cf) t .......... .......... V Z xi TOE 0 CIIII&®zoie� —4. REVISIONS N10. DATE By MONROE TRACTOR Prepared for: 21 OTREY COVE POST-DEVELOPMDU PC BOX V67 IR 6, 14&24 SANWA DRIVE 6/2 1 MONROE TRACTOR SCUTH WPCSCR CT 06074 e6O-29�8755:T REEL DMNAGE MAP esign 860-29�8757 P MAP 108, LOT 8, 9&13 800A HARTFORD SOUTH WINDSOR, CT TURNPIKE ofessionals 0 is, w to SITE PLAN&SPECIAL EXCEPTION SHREWSBURY,MA 01545 CRFL&TRA FM"GESEEN8 PLANNERS/SURVEYORS . IS ANALYSTS/LANDSCAPE ARC—ECTS 'iFle O\Jobs\4020\Aummd\4020 Ste Pl dw Lay t.PRE Potted 3/20/2018 243 PM Lev Seved 3/20/2018 127 PM Lmt Saved BY 6-1.b— I h O IJ o m , \ / m \ `v fn ro D \ \ \ \ \ m Z m 'v v ro / / � . / r � 1�,..,'�*;" � •,,,,...,, ,.����~�^*,:,\, \� \\\—\\\\\\ — � ��._/ 11,1 I /:._�� �` ... �—lam J ., //,'� / / _ x / t / e'' j n / V 7Lr / Capw'ght 0201E Deegn Pr emwdy he-AI Rghb Reserved PRE-DEVELOPMENT "a DATE REVISIONS By MONROE TRACTOR 4020Pe Prepared for: ; ;:5;„', 2 sP�OcRUE'. PO.BOX 1167', 8 14&24 SANDRA DRIVE m�o6 2m �^^,;�. ��—:^ sou n vmosCR cr O60]4', q MONROE TRACTOR es0-29r8755-r. SF DRAINAGE MAP MAP 108,LOT 8, s&1a DML D 800A HARTFORD '.".°.°"" � esign r8�7-F SOUTH WINDSOR, CT °^^^ TURNPIKE ,a, rofessionals SCALE 0 is, 39 60' DML n SHREWSBURY,MA 01545o� .a.,,< M r.,D• SITE PLAN& SPECIAL EXCEPTION °^ CIYL A TRAPPIC RNSWEIRS/PLANNERS/SURVEYORS r.:perra w.. • ANALYSTS/LANDSCAPE ARCNRECTS pW N Sf4 m � 1540 SULLIVAN AVENUE • SOUTH WINDSOR, CT 06074 r�OSOR-CO TELEPHONE (860) 644-2511 CERTIFIDE #70160910000098610837 April 23, 2018 Monroe Tractor c/o Design Professionals Inc 21 Jeffrey Drive South Windsor, Ct 06074 RE: Appl. #18-15P—6, 14, 24 Sandra Drive Dear Mr. LaBonte: On April 18, 2018, the Inland Wetlands Agency/Conservation Commission approved Appl. #18-15P — Monroe Tractor Site Plan —6, 14, 24 Sandra Drive—Conservation Commission application for approval of an industrial equipment storage yard, stormwater management systems and associated improvements on property located west Sandra Drive. Industrial (1) Zone, with 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 applicant 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 April 18, 2023. It is the landowner(s)/applicant(s) responsibility to track expiration dates and notify the Commission of a renewal request at least 65 days prior to expiration. 4. A bond shall be collected in the amount of $5,000 for installation and maintenance of erosion and sediment controls on the site; and a bond in the amount of $3,000 for installation of the stormwater system. 5. All approvals required must be obtained and submitted prior to any activity on the site. 6. A contact person shall be identified on the plans. Very truly yours, INLAND WETLANDS AGENCY/ CONSERVATION COMMISSION �;(o al,"� r .f 1, Barbara Kelly, Chairperson cc: Director of Planning Chief Building Official Town Engineer