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HomeMy WebLinkAbout18-10P Housing Authority Wapping Mews TOWN OF SOUTH WINDSOR PLANNING & ZONING COMMISSION APPLICATION FORM Q Q - Application Number: O ! RECEI D Official Receipt Date: MAR 0 6 2018 ��CC � Munis Application #: b�-01 C6 � SOUTH WlNDSOR PLANNING DEPT. APPLICANT: South Windsor Housing Authority PROJECT NAME: Warning Mews COMPLETE LOCATION OF PROPERTY: 50 Elm Street OWNER OF RECORD ON LAND RECORDS: _South Windsor Housing Authority OWNER ADDRESS: 50 Elm Street GIS PIN # 30600050 ZONE A 20 NAME, ADDRESS, TELEPHONE & EMAIL ADDRESS OF PERSON TO WHOM INQUIRIES SHOULD BE DIRECTED: Daniel Jameson, Design Professionals, Inc 21 Jeffrey Drive, South Windsor, CT 06074 860-291-8755 l`_ o 76 7gjO Estimated presentation time: N/A THIS APPLICATION IS FOR: (Check all that apply): ❑ Zone Change to (Public Hearing and Certificate of Mailing Required) ❑ Open Space Subdivision/Resubdivision (Public Hearing and Certificate of Mailing Required) ❑ Subdivision ❑ Minor ❑ Major ❑ Resubdivision (Public Hearing Required) ❑ Minor ❑ Major ❑ Conditional Subdivision ❑ Special Exception to Table (Public Hearing and Certificate of Mailing Required) ® Site Plan of Development ❑ New ® Modification Building(s) Sq Ft ❑ General Plan of Development ❑ Earth Filling (Sec. 7.6) and/or Earth Removal (Sec. 7.16) (Public Hearing and Certificate of Mailing Required) ❑ Regulation Amendment ❑ Zoning ❑ Subdivision -Attach proposed amendment (Public Hearing Required) ❑ Temporary and Conditional Permit (Public Hearing Required) for ❑ Temporary and Conditional Permit Renewal for ❑ Detached In Law Apartment or ❑ Accessory Apartment (Public Hearing and Certificate of Mailing Required) ❑ Major Home Occupation (Certificate of Mailing Required) for ❑ Other (explain in detail) PLEASE NOTE: An Application Pending Sign is required to be posted on the property for all applications ten (10) days prior to being heard by the Commission. 9 Si, nature f Appl c nt §ignatur4 of Property Owner Print Name of-Applicant Print Name of—Property Owne4 Revised 1/9/2017 P.O.BOX 1 167 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 Serving Connecticut, Massachusetts, Rhode/s/and • LETTER OF TRANSMITTAL To: South Windsor Planning Department Date: 3/6/2018 DPI Project No. 3980 Re: Wapping Mews Site Plan Modification WE ARE SENDING YOU: ® Attached ❑ Under separate cover via the following items: ❑ Shop Drawings ® Prints ❑ Renderings ❑ Specifications : ® Copy of Letter ❑ Change Order ❑ • COPIES DATE NO. DESCRIPTION 2 3/6/2018 1 Planning and Zoning Application 2 3/6/2018 2 Site Plan Checklist 15 3/6/2018 3 Inland Wetlands,Watercourses and Conservation Application 2 3/7/2018 4 Sample Letter for Abutting Property Owners and Mailing Addresses 6 3/6/2018 5 Plans 2 3/6/2018 6 Stormwater Management Report • These are transmitted as checked below: : ❑ ForApproval ❑ No exceptions taken ❑ Resubmit copies for approval • ❑ For your use ❑ Make corrections ❑ Submit copies for distribution ❑ As requested ❑ Revise and Submit ❑ Return corrected prints ® For review and comment ❑ Forbids due ❑ Prints returned after loan to us • REMARKS: • -F {`,,� . MAR 0 6 2018 • SOM WINDSOR PLANNING DEPT. • SIGNED: CC: Daniel H. Jame o , I.T. s TOWN OF SOUTH WINDSOR CHECKLIST REQUIRED INFORMATION SITE PLANS APPLICANT South Windsor Housin Authorit PROJECT NAME WappingMews This checklist must be signed by plan preparer (P.E./L.S.) declaring that all required information is provided. Items 1-7 are required for all applications; items 8-11 required Check mark for each item supplied. q ed where appropriate. -�— 1• On each sheet for plans or maps, title block with the following inform anon: a. Name, address and telephone of applicant. -x b. Name, address and telephone number of Land Surveyor or Professional essional -x c. Name of Development. x d. Date when drawings were made. - - 2. Key Map: An overall map drawn to a scale of 1 inch equals either 100 feet or 200 feet. This map will show the overall design of the Development and surrounding property within 500 feet. x a. Data block which gives needed zoning information such as percentage of lot coverage, acreage of tract, number of apartment units, parking requirements, etc. - b. Outline of buildings. —WA c. Layout of streets. -x d. Surrounding Property p ►ty boundaries-within 500 feet. -Y e. Names of abutting property owners. - f. Proposed open spaces and recreation areas. -�— g. Driveway cuts on abuttin Proposed site. g properties and any properties across from -� h. Distance to and name of nearest intersection street. 3. Architectural Elevations: See attached checklist for Architecture e and Design 1 ' f X 4. Plot Plan: A layout map of the proposed site drawn to a scale of 1 inch equals 40 feet on either of the following size sheets: (1) 24" x 36" with a 3/4" ruled margin; (2) 18" x 24" with a 1/2" ruled margin, containing the following data: -X a. Distance and bearings of all boundary lines and acreage of site. Iron pins required at all property angle points and shown on map. N/A b. Proposed streets and street lines with center line station, curve data, and parking spaces. X _ c. Building lines in accordance with zoning regulations. X d. Proposed buildings and other structures, including signs, outside lighting, and dumpsters (on concrete pad and screened). N/A e. Easements, noting grantors, grantees, and purpose must be shown in table format, e.g. below Grantor Grantee Type of Date Filed Vol/Pg Easement X f. Names of abutting property owners. N/A g. Monuments will be indicated at corners and angles of all streets and at all points of curvature and tangency. The monumented points within proposed site shall be coordinated. These coordinates shall appear in tabular form on the plot plan. The accessibility of these CGS points shall be determined by the Town Engineer. N/A h. All open space or other common or public land uses shall be indicated. X i. A-2 certification; P.E./L.S. Seal. 5. Topographic Map: A map drawn to a scale of 1 inch to 40 feet on sheets not exceeding 24 inches by 36 inches, including ruled margins shall in addition to the requirements of the plot plans show the following: X a. All existing and proposed buildings. X b. Curb Lines and pavement width, sidewalks. _X c. Existing and proposed sanitary sewers. X d. Existing and proposed water and-all existing utilities. 2 ' x x e. Present wooded area indicated by foliage lines. Any trees to be saved should be shown. x f. Existing and proposed contours shall be shown in not less than two-foot intervals, but in cases of relatively level land, the contours shall be one- foot intervals and spot elevations. x g . Regulated wetlands and 100-year floodplain or note that none are present. x h. Proposed storm drainage system, showing all catch basins, endwalls, manholes, lengths and sizes of pipes and elevations of structures. (Maximum distance between catch basins shall be 300 feet and minimum size of storm drain lines shall be 15 inches, within Town ROW.) If plan/profile sheet is provided all of this does not need to be shown. Only top of frame elevations and inverts of open discharge pipe shall be shown on this plan. x i. Connections of all springs into proposed storm drainage system as needed. _X j. Location and indications of existing brook channels, and 100-year flood limits. x k. A-2 &T-2 Certification; P.E & L.S. Seals. x 6. Landscaping plan �x— 7. Drainage calculations: - Zero Runoff Increase per attached guidelines. N/A 8. Traffic Report X 9. Site Lighting Plan N/A 10. Plans and Profiles: A plan and profile of the proposed streets drawn on plan/profile paper of scales 1 inch to 40 feet horizontally, and 1 inch to 4 feet vertically on sheets not exceeding 24 inches by 36 inches, including ruled margins and containing the following: N/A a. Layout of streets in sections coordinated by stations with the profile. N'1A b. Street plan showing roadways, drainage, sanitary sewer (including house sewer), foundation drains, lot lines, buildings including all utilities with elevations (top frame and inverts), size, type, length, slopes of pipes. N/A c. Sight line at driveway &street intersections. 3 s N/A d. Profile of roadway showing existing and finished grades. Roadway profile will show all tangent grade and all vertical curve information. N/A e. Profile will show all catch basins and all drainage lines between catch basins with all invert and top of frame elevations, sizes, lengths and slopes of pipes. N/A f. Where any storm drainage line discharges into an existing brook sufficient profile of this brook will be shown to determine conditions. x g. CGS datum shall be used on all sites accessible to these controls. The Town Engineer shall, based on standard engineering practices, determine the accessibility of these controls. N/A h. Profiles shall show all sanitary sewer lines and manholes, including elevations, (inverts, top of frame) sizes, lengths, and slopes of pipes. Top of foundation elevations for building shall be shown. N/A 11. Open Space Site Improvement Plans: For sites which require or include a provision for open spaces, a plan which contains data for site improvement may be required. This map shall be drawn to a scale of 1 inch equals 40 feet. N/A 12. Sanitary Report: Where individual sanitary sewage disposal systems are proposed, the final plans shall include a Sanitary Report certified by a Professional Engineer. The report shall demonstrate the feasibility of the proposed individual systems. P PREPA ER (P.E./L.S.) DATE February 2002; Rev. 4-04 4 1 { Page 1 of 3 } vac 148 =255 W i yp� q.n�l�n/L..�d 51.i S�Mp,Fw ' WAItRANiBE DEED No.ll4 2!� l 00478 To all People to whom these Presents shall come,Greeting: KNOW M THAT I, J. KIRBY HOLCOMBE of the Town of South Windsor, } County of Hartford and State of Connecticut F ' for the eansiderabon o£ ONE DOLLAR ($1 00) AND OTHER VALUABLE CONSIDERATIONS t k received to my full satisfaehan of THE HOUSING AUTHORITY OF SOUTH WINDSOR, an authority created pursuant to the General Statutes of the State of Connecticut with an office and principal t place of business in the Town of South Windsor, County of Hartford and State of Connecticut do give,grant,bargain,seH and confirm unto the sazd THE HOUSING AUTHORITY OF SOUTH WINDSOR, its successors and assigns forever, a certain piece or parcel of land located in the Town of South Windsor, County of Hartford and State of Connecticut t as shown on a map entitled "Boundary Map Prepared for the South Windsor Housing Authority Project E-78, Elm Street, South Windsor, Conn. Scale 1" = 40' February 9, 1972 Russell S Andres L.S " which map is on file in the Town Clerk's Office in said Town of South Windsor. Said premises are further bounded and described as follows- Commencing at an iron pin set in the southerly boundary of f land now or formerly of Robert E. and Helen D Otten which t pin marks the northwesterly corner of the premises herein j described, thence running S 66018' 05" E along premises f now or formerly of Robert E. Otten et al, George A. Daniotti ;4 et al, Seymour J. Geer et al, C. Raymond Cough et al, and 1 Carl J. Zipfel, Jr., partly by each, a distance of Four + Hundred Twenty-Two and Nine One Hundredths feet (422.09') to an iron pin, thence running S 12040' 00"W along premises f now or formerly of Richard W. Hassett et al, Thomas J. Franco ' et al, Robert M, Brandenberger et al, John H WadAock et al and Salvatore M. Zocco et al, partly of each, a distance of Four Hundred Eighty-Eight and Twenty Five One Hundredths feet (488.25') to an iron pin, thence running N 68015' 00' W along premises now or formerly of Orlando L. Tibbetts, Jr. et al, Eleanor Krul, Elm Street and Gerald P Bergeron et al partly of each, a distance of Four Hundred Ninety-Five and Eleven One Hundredths feet (495.11') to an iron pin, thence running N 23019' 40" E along other land of the Grantor a distance of Two Hundred Forty-One and Eighty-One One Hundredths feet (241 811) to an iron pin, thence running N 19018' 55" E along premises now or formerly of Dwight Winter and Robert E. Hurley et al, partly of each, a distance of Two Hundred Fifty-Five feet (255.00') to the point or „ place of beginning. ' Being a portion of the premises conveyed to the Grantor herein by Warrantee Deed of Eleanor K. Spencer dated August 7, 1970 and recorded in the South Windsor Land Records in Volume 133 at Page 131. Said premises contain 5,096 acres plus or minus. " t Together with a right of way twenty (20) feet in width running Westerly from the Westerlytline,of•the above described premises 4 d �• i �--_ _. ._ _ __ •�� 11255 Page 2 of 3 ' along the Southerly line of land now or formerly of Dwight Winter, a distance of two hundred (200) feet more or less to the Easterly line of Avery Street, said right of way for the purpose of constructing, maintaining and installing a sanitary sewer line and/or water main, provided that the Grantee herein shall forever pay for such installation, f maintenance and repair and shall restore the land to the i condition existing prior to such installation, maintenance and repair. Said right of way being bounded 3 ' NORTHERLY By land now or formerly of Dwight Winter, 200 feet, EASTERLY By the premises described above, SOUTHERLY. By other land of the Grantor herein, and WESTERLY By Avery Street. r The Southerly line of said right of way being twenty (20) i feet distant and parallel to the Northerly line of said 1 y.right of wa i I Y 1 i r r 1 r ' � 1 S r f' r r r To Have and to Hold the above granted and bmumned premnes, wah the appurtenanm ! ` theread.unto it , the said granteeits IQFM,wooes+sm and assW forever,to its ! and thew oven ps oper use and behoof And also, I the amid grantor do for MY ad f, ,my hem.executors.admmn rs aErato ,and assigns with the said grantee , its tom,svooesams,and that at and natal the auamtmg of terse presents. ! I am wreU Based of the Pmmus,as a good mdefeasible estate in Fab Simple, and ha ve good nght to bargmn and wH the sane in mamwer and form as n above wntten and that the same as free from all racumbrances whatsoever,except as herembefore menuoned And Furthermore, I the nerd grantor do by these presents bind my set f and r my hem forever to Warrant and Defend the above granted and barg uned pransses to it the said grantee its >lgtacanccasorB,and aawgna,afsauwt au clarets and demands vvhac- i aoever,except as herembefore menboned A N.It Book- 148 equence: 256 Page 3 of 3 —_ - - F t f f vm 148 mW In Witness Whereof, I have hereunto set my hand and seal this 27th day of MARCH in the year of our Lord mnetYen hundred and seventy two. Signed,Seafed and delve in the presence of ��. qtof�� � 'R (L S) .�: HOLCOII9E t (L S) (L S) STATE OF CONNECTICUT Hartford COUNTY OF Hartford On this 27 day of March 19 72 ,before me f the undersigned officer,personally appeared J. RIRSY HOLGOrBE (mown to me (or satisfactory proven)to be the person whose name is/a subsc abed to the within Instrument and acknowledged that he/ executed the same for the therein contained In Witness Wbereof I hereunto set my hand G( Notary PubLo--C.omrruesioner of the Superror Court STATE OF CONNECTICUT COUNTY OF On this day of 19 ,blare nW ' appeared ,the undersigned officer,persooa1lr himself/herself to be the Of who acknowledged ,a corporation,and that he ,as such ` being authorized so to do,executed the foregoing instrument for the purposes theran contained, fl / by signing the name of the corporation by himself as In Witness Whereof I hereunto set my hand - 1 Grantees'Address Street and Number Notary Pubh —Comnizaamner of the Supersor Court City state Received I ipxth 27 19 72 At.,) 02F Al , Recorded in South Uinasor Land Records--Vol 148 ,page �5� Hazel P. Van Sicklin TowSSCI erk , , Stormwater Management Report ' Wapping Mews Site Improvement Plan 50 Elm Street ' South Windsor, CT 1 1 Prepared for: ' South Windsor Housing Authority 50 Elm Street ' South Windsor, CT 1 Prepared by: Design Professionals, Inc. j ' 21 Jeffrey Drive MAR U 9 Z018 South Windsor, CT ' SOUTH WWNDSOR PLANNING OEPT March 6, 2018 win Table of Contents , Section _ __ Page ' Introduction 1 , Pre-Development Site Conditions 1 Post-Development Site Conditions 2 Analysis of Results 2 ' Water Quality 3 Conclusion 3 Appendices A Pre-Development Drainage HydroCAD Report ' B Post-Development Drainage HydroCAD Report C NRCS Soil Map &Data ' D 8" HDPE Capacity Computation. E Water Quality Calculations Water Quality Volume Calculation , Water Quality Basin Stage Storage Reports F Drainage Area Maps Existing Drainage Areas (Pre) , Proposed Drainage Areas (Post) 1 Introduction ' The South Windsor Housing Authority, applicant, is proposing to make improvements to their 5.09 Acre Elderly Housing complex of located at 50 Elm Street. The property is referenced on the South Windsor's Tax Assessors Map 67, Lot 37. The proposed development will consist of ' an expansion of 3 of the 30 units with associated site improvements including a new parking area, accessible walks, landscaping, lighting, and stormwater management BMP's. ' Of the 5.09 Acre tract, approximately 0.77±Acres of the central portion of the lot is proposed to be disturbed. For more information,please refer to the plans entitled"Wapping Mews - Site Plan Modification - South Windsor, CT - Map 67, Lots 37"prepared by Design Professionals, ' Inc. and dated March 61h, 2018, as amended. ' Pre-Development Site Conditions The existing surficial characteristics of the site can primarily be classified as residential and ' woodland areas. To accurately assess the existing drainage conditions, small portions of the abutting properties to the north, east, and south were included in the drainage analysis. Evaluation of the topography in the area demonstrated that runoff from these abutting properties ' discharge to the subject site. The additional upland areas added residential and woodlands to the watershed study area. ' Averys Brook runs from north to south along the westerly property line. The edge of the brook was used as the western limit of the drainage study area. The vast majority of runoff from the study area is collected in the brook, and then gets conveyed to the south-west corner of the ' property (Discharge Point 2). The remaining study area, sheet-flows to the existing storm drainage system in the Elm Street (Discharge Point 1). The extent of the residential and woodland contributions to the drainage study area and existing conditions watershed delineations ' are identified in the Existing Conditions Drainage Map located in Appendix F. Based on Natural Resources Conservation Service (NRCS) Hydrologic Soil Group (HSG) ' mapping, soils types A, B, C, &D are located on site. See Appendix C for The NRCS Soil Map &Data. t An evaluation was performed to quantify the peak rate of stormwater discharge offsite to design points 1 & 2. The Natural Resources Conservation Service's TR-55 Manual was followed in predicting the peak rates of runoff and volumes. HydroCAD computer modeling software was ' utilized. The peak rates of stormwater runoff discharging to design points 1 & 2 were determined for the 2-, 10-, 25-, and 100-year storm events. For more information, please refer to the enclosed Pre- Development Drainage HydroCAD Report located in Appendix A. 1 Post-Development Site Conditions ' The subject project proposes to expand 3 of 30 existing units, and add a new parking area, ' accessible walks, landscaping, lighting, and stormwater management BMP's. In the proposed condition, stormwater from the site will be collected, retained, and then discharged to the existing subsurface storm drain system conveying runoff to Averys Brook. ' The proposed grading for the proposed improvement will maintain the natural conveyance pattern of storm flows, while still promoting positive drainage away from the proposed units. ' Proposed modifications to the existing watershed area discharging to the drainage system in Elm Street (Design Point 1) was minimized to avoid increasing the drainage area to this system. This area was actually reduced as a result of the modifications. A proposed berm to the east of the , water quality basin will serve as the divide in the proposed condition. All storm flows reaching the basin will do so under sheet flow & shallow concentrated conditions. No inlet pipes to the basin are proposed. ' One new yard drain is proposed as a result of the site improvements. The structure will collect , runoff from a small area(0.080 Acres) located adjacent to the south west corner of the proposed parking area. A capacity check of the 8" HDPE pipe leaving the yard drain, demonstrated that conduit would adequately convey runoff generated from a 10-year storm. A print out of the t capacity analysis computations is included in Appendix D. The calculation demonstrated that the proposed storm pipe has the capacity to convey 1.37 CFS of flow, while the 10-year storm peak flow is only expected to reach 0.27 CFS See Appendix B for the Post-development condition HydroCAD report. Stage storage reports for the water quality pond is included in Appendix F. The Proposed Conditions Drainage Map for the site is located in Appendix G. ' Analysis of Results ' The pre-development and post-development conditions were analyzed using HydroCAD consistent with National Resource Conservation Service (NRCS) hydrology methods. Two ' discharge locations were identified as points of interest for assessing downstream effects. The following table contains the data generated from the HydroCAD software: Reach 2 year 10 year 25 year 100 year ' DP#1 Pre 1.70 4.20 5.92 8.67 ' Drainage to Elm Street Post 1.67 4.11 5.80 8.49 Change -0.03 -0.09 -0.12 -0.18 , DP#2— Pre 5.62 13.92 19.65 28.79 8L—Drainage ' to Averys Brook Post 5.29 12.86 18.27 28.24 Change -0.33 -1.06 -1.38 -0.55 2 As seen in the table above, the subject project will result in peak runoff rates in the proposed condition that are less than the peak runoff rates of the existing condition for all design storms. ' Water Quality ' The proposed water quality basin was sized in accordance with the 2004 Connecticut Stormwater Quality Manual, to provide a ponding volume greater than the water quality volume drainage to it. The proposed ponds stage storage report is included in Appendix E. Water Quality Volume ' Calculations are also included in Appendix E. ' 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 any detrimental impacts to the environment. 1 3 1 t APPENDIX A ' Watershed Computations (Pre-Development Drainage HydroCAD Report) , 1 1 1 1 1 1 1 1E 20E 1 Drainge Area to Elm Drainge Area to Averys 1 street DP#1 Brook DP#2 1 1 i 1 Subcafi Reach on Li lk Routing Diagram for 3980-Drainage Conditions-final Prepared by Hewlett-Packard Company, Printed 3/6/2018 FHydroCADO 10.00-20 s/n 09320 ©2017 HydroCAD Software Solutions LLC 3980 - Drainage Conditions - final , Prepared by Hewlett-Packard Company Printed 3/6/2018 HydroCAD® 10.00-20 s/n 09320 O 2017 HydroCAD Software Solutions LLC Page 2 Area Listing (selected nodes) ' Area CN Description (acres) (subcatchment-numbers) , 0.402 60 >75%Grass cover, Good, HSG A/D (2E) 4.997 71 >75%Grass cover, Good, HSG B/D (1 E, 2E) ' 1.534 98 IMPERVIOUS (1 E, 2E) 0.022 54 Woods, Good, HSG A/D (2E) 0.006 55 Woods, Good, HSG B (2E) , 2.131 66 Woods, Good, HSG B/D (1 E, 2E) 9.092 74 TOTAL AREA ' 3980 - Drainage Conditions - final Type 111 24-hr 2 Year- Hartford Rainfall=3.13" Prepared by Hewlett-Packard Company Printed 3/6/2018 HydroCAD610.00-20 s/n 09320 02017 HydroCAD Software Solutions LLC Page 3 ' Summary for Subcatchment 1 E: Drainge Area to Elm Street (DP#1) Runoff = 1.70 cfs @ 12.22 hrs, Volume= 0.170 af, Depth> 0.99" ' Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-24.00 hrs, dt= 0.05 hrs Type III 24-hr 2 Year- Hartford Rainfall=3.13" Area (ac) CN Description 1.245 71 >75% Grass cover, Good, HSG B/D ' 0.511 66 Woods, Good, HSG B/D 0.303 98 IMPERVIOUS 2.059 74 Weighted Average ' 1.756 85.28% Pervious Area 0.303 14.72% Impervious Area ' Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.3 102 0.0450 0.23 Sheet Flow, Grassland Sheet Flow Grass: Short n= 0.150 P2= 3.13" ' 1.0 94 0.0530 1.61 Shallow Concentrated Flow, Grassland SC Short Grass Pasture Kv= 7.0 fps 0.7 80 0.1440 1,00 'Si ballvv ^aN sc;ei aerated Flow, Woodland SC ' Woodland Kv= 5.0 fps 4.7 233 0.0140 0.83 Shallow Concentrated Flow, Grassland SC Short Grass Pasture Kv= 7.0 fps ' 1.0 57 0.0330 0.91 Shallow Concentrated Flow,Woodland SC Woodland Kv= 5.0 fps 14.7 566 Total 3980 - Drainage Conditions -final Type 111 24-hr 2 Year- Hartford Rainfall=3.13" ' Prepared. by Howlett-Packard Company Printed 3/6/2018 HydroCAD® 10.00-20 s/n 09320 02017 HydroCAD Software Solutions LLC Paae 4 Subcatchment 1E: Drainge Area to Elm Street (DP#1) ' FHydrograph 1.70 efs —Runoff ' Type III 24-h r 2 Year - Hartford Rainfall_3.13" ' Runoff Area=2.059 ac Runoff Volume-0:170 of Runoff Depth>0.99" N 1 - - -- - - -- - - Flow LengtM_50' Tc_14.7 min LL CN=74 , 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 < 24 Time (hours) , 1 ' 3980 - Drainage Conditions - final Type Ill 24-hr 2 Year- Hartford Rainfall=3.13" Prepared by Hewlett-Packard Company Printed 3/6/2018 HydroCAD0 10.00-20 s/n 09320 02017 HydroCAD Software Solutions LLC Page 5 ' Surnmary for Subcatchrnent 2E: Drainge Area to Averys Brook (DP#2) Runoff = 5.62 cfs @ 12.24 hrs, Volume= 0.579 af, Depth> 0.99" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-24.00 hrs, dt= 0.05 hrs Type III 24-hr 2 Year- Hartford Rainfall=3.13" Area (ac) CN Description 0.402 60 >75% Grass cover, Good, HSG A/D 3.752 71 >75% Grass cover, Good, HSG B/D 0.022 54 Woods, Good, HSG A/D 1.620 66 Woods, Good, HSG B/D ' 0.006 55 Woods, Good, HSG B 1.231 98 IMPERVIOUS 7.033 74 Weighted Average ' 5.802 82.50% Pervious Area 1.231 17.50% Impervious Area Tc Length Slope Velocity Capacity Description (feel)__ f(t/ft)9_y_ (ft/sec _ _ cfs) 8.4 100 0.0300 0.20 Sheet Flow, Grassland Sheet Flow C-Arass: Short n= 0.150 P-2= 3.13" ' 1.0 79 0.0392 1.39 Shallow Concentrated Flow, Grassland SC Short Grass Pasture Kv= 7.0 fps 0.6 49 0.0841 1.45 Shallow Concentrated Flow,Woodland SC ' Woodland Kv= 5.0 fps 0.3 55 0.1620 2.82 Shallow Concentrated Flow, Grassland SC Short Grass Pasture Kv= 7.0 fps 4.5 264 0.0194 0.97 Shallow Concentrated Flow, Grassland SC ' Short Grass Pasture Kv= 7.0 fps 0.6 185 0.0106 5.06 3.97 Pipe Channel, 12" RCP 12.0" Round Area= 0.8 sf Perim= 3.1' r= 0.25' ' n= 0.012 0.5 130 0.0062 4.49 5.51 Pipe Channel, 15" RCO 15.0" Round Area= 1.2 sf Perim= 3.9' r= 0.31' ' n= 0.012 15.9 862 Total 3980 - Drainage Conditions -final Type 111 24-hr 2 Year- Hanford Rainfall=3.13" ' Prepared by Hewlett-Packard Company Printed 3/6/2018 HydroCADO 10.00-20 s/n 09320 ©2017 HydroCAD Software Solutions LLC Page 6 Subcatchment 2E: Drainge Area to Averys Brook (DP#2) ' Hydrograph 6-, 5.62 ofs - - - - —Runoff Type III 24-hr 5._ 2 Year - Hartford Rainfall_3.13" ' Runoff Area_7.033 ac 4 Runoff Volume,0.579 of 4! Runoff Depth>0.99" Flow Length=862' 0 3 - --- - - -1 - --- - - ,� Tc-15.-9 min ' CN=74 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) ' 3980 - Drainage Conditions - final Type 11124-hr 10 Year- Hartford Rainfall=4.93" Prepared by Hewlett-Packard Company Printed 3/6/2018 HydroCAD® 10.00-20 s/n 09320 ©2017 HydroCAD Software Solutions LLC Page 7 Subcatchment 1 E: Drainge Area to Elm Street (DP#1) Hydrograph ' 4.20 cfs —Runoff 4 - - ' Type III 24-hr 10 Year - Hartford Rainfall 4.9'3'° Runoff Area=2.959 ac 3 - Runoff Volume_-O 395 of Runoff Depth>2.30" Flow Length=566' TC=14.7 min LL 2 - ---- — - - --- - CN=74 r 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) Subcatchment 2E: Drainge Area to Averys Brook (DP#2) ' Hydrograph 15. _ 13.92 cfs —Runoff 14- 13 - - - - - TYPe LIl 24-br-- 121 10 Year Hartford Rai nfall_4.93" 1,o Runoff Vo , - - - - Runoff-Area=7.033 ac- - --- - Iume=1 349-af- 9 Runoffp De #h>2.30 U $ -Flow tcng#h-862' 3 7 Tc=15,9-rain - s - = - -- - -- -- CN=;74- S _ - - --- - - - ---- -- - 4 -- - -- - - - -- --, - 2 - - -- -- -- - -- - - - -- -- 0 5 6 7 8 9 1�0 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) i 3980 - Drainage Conditions - final Type ///24-hr 25 Year- Hartford Rainfall=6.06" ' Prepared by Hcwlett-Packard Company Printed 3/6/2018 HydroCADO 10.00-20 s/n 09320 ©2017 HydroCAD Software Solutions LLC Page 8 Subcatchment 1E: Drainge Area to Elm Street (DP#1) ' Hydrograph 5.92 cfs —Runoff ' 6 - - - - - Type III 24-hr 5 - 25 Year - Hartford Rainfall=6.06" ' Runoff Area=2.059 ac Runoff Volume=0.554 of 4- Runoff Depth>3.23" ' 42 3 Flow Length=566' LL To=14..7-min CN=74 2- 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) ' Subcatchment 2E: Drainge Area to Averys Brook (DP#2) Hydrograph ' 22_ 21 20 19.65 cfs —Runoff 18 - - - -Type 111 24-hr ' 17 25 Year - Hartford-Rainfall=6.06" 16 Runoff Area=7.033 ac ' 15 _ - 14. - Runoff -Volume=l.890'_af 13 - Runoff Depth>3.23„ Flow Length=862' LL 10 Tc-15.9 min 8 CN=74 7L _ 5 - - - - - - 2 - - - -- -- - -- 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) ' 3980 - Drainage Conditions- final Type Ill 24-hr 100 Year- Hartford Rainfall=7.79" Prop«red by !-'ewlett-Packard Company Printed 3/6/2018 HydroCADO 10.00-20 s/n 09320 ©2017 HydroCAD Software Solutions LLC Page 9 ' Subcatchment 1 E: Drainge Area to Elm Street (DP#1) Hydrograph 9 -- -- - -- --- - 8.67ofs -- - --- ---- - - —Runoff 8 TYpe III 24-hr 100 Year - Hartford Rainfall=7.79" 7 -- -Runoff Area=2.059 ac- - Runoff Volume_0.811 of ' 6 - - - -- -Runoff Depth>4.73" 5 -- -- - - ------ - --- -- Flow Length=566 o Tc_14.7 min LL 4 - - - - CN=74-- 3- 2 - - -- --- 1 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 ' Time (hours) Subcatchment 2E: Drainge Area to Averys Brook (DP#2) ' Hydrograph 32 30 - 28.79 ofs - —Runoff ' 28 -- - - - - - - - - - Type 11124-hr 26. 100 Year- Hartford Rainfall_7.79" ' 24 Runoff Area 7033 ac 22 _ Runoff Volum- e_2.769 of 20 - -- - - --- - Runoff DepthA.73" ^ - - - 18 Flow Length=862' 3 16 - - C Tc=15.9 min LL 14 - - -- - _ ' 12 CN.,74 10 - -I - --- - - - I- -- -- _- - - - 4 -- --- - -----' -- ------ ---- -- '- -- - - ---------- ----- -- 2 ------ -- --- - --- - - -- -- -r-- ---- - - - --- 0 - 1 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) APPENDIX B Watershed Computations Draik,),age �lydroCAD eport) II 2P 3P � ' 4P Drainage to ater Quality Swa North-Eatea Catchment W Zterly Catchment Area ' 6P Water Quali and Drainge Area to Elm Detention B in Courtyard Draiange to Street (DP#1) Existing Yard Drain (5P 8L ( ) 7P ' Y Courtyard Draiange to DRAIN TO AVBROOK (DPERER Drainage to Proposed ' Existing Yard Drain Yard Drain Subcat Reach on LICfk Routing Diagram for 3980-Drainage Conditions-final ' Prepared by Hewlett-Packard Company, Printed 3/6/2018 HydroCAD®10.00-20 s/n 09320 ©2017 HydroCAD Software Solutions LLC 3980 - Drainage Conditions - final , rMp red. by !-°ewlott--Packard Company Printed 3/6/2018 HydroCAD® 10.00-20 s/n 09320 ©2017 HydroCAD Software Solutions LLC Page 2 Area Listing (selected nodes) ' Area CN Description , (acres) (subcatchment-numbers) 0.402 60 - >75% Grass cover, Good, HSG A/D (4P) 4.770 71 >75%Grass cover, Good, HSG B/D (1 P, 2P, 3P, 4P, 5P, 6P, 7P) ' 1.762 98 IMPERVIOUS (1 P, 2P, 3P, 4P, 5P, 6P, 7P) 0.022 54 Woods, Good, HSG A/D (4P) 0.006 55 Woods, Good, HSG B (4P) , 2.130 66 Woods, Good, HSG B/D (1 P, 2P, 3P, 4P) 9.092 75 TOTAL AREA 1 ' 3980 - Drainage Conditions - final Type /I/24-hr 2 Year- Hartford Rainfall=3.13" Prcpared I:y I 'cwlett-Packard Company Printed 3/6/2018 HydroCADO 10.00-20 s/n 09320 ©2017 HydroCAD Software Solutions LLC Page 3 ' Summary for Subcatchment I P: Drainge Area to Elm Street (DP#1) ' Runoff = 1.67 cfs @ 12.21 hrs, Volume= 0.164 af, Depth> 0.99" Runoff by SCS TR 20 method, UH=SCS, Weighted CN, Time Span= 5.00-24.00 hrs, dt= 0.05 hrs Type III 24-hr 2 Year- Hartford Rainfall=3.13" Area (ac) CN Description 1.173 71 >75% Grass cover, Good, HSG B/D 0.510 66 Woods, Good, HSG B/D 0.304 98 IMPERVIOUS 1.987 74 Weighted Average ' 1.683 84.70% Pervious Area 0.304 15.30% Impervious Area Te Length Slope Velocity Capacity Description ' (min) (feet) (ft/ft) (ft/sec) (cfs) 6.9 100 0.0500 0.24 Sheet Flow, Grassland Sheet Flow Grass: Short n= 0.150 P2= 3.13" ' 1.3 143 0.0712 1.87 Shallow Concentrated Flow, Grassland SC !1 Short Grass Pasture Kv= 7.0 fps n^ 0.04 k" e A �n /�! F! /'�- -- •- RrU �v�., I,v!� �3�EdiEF�.r�� ��%�Eo..,E:cce.heYl�4.A a" �ivv, GrU'Ck s�iE�Eli �� Woodland Kv= 5.0 fps 3.9 170 0.0110 0.73 Shallow Concentrated Flow, Grassland SC Short Grass Pasture Kv= 7.0 fps ' 1.0 57 0.0330 0.91 Shallow Concentrated Flow,Woodland SC Woodland Kv= 5.0 fps 14.1 534 Total 3980 - Drainage Conditions - final Type 111 24-hr 2 Year- Hartford Rainfall=3.13" ' Prc arco' ► !-!r-,wlctt Packard Company Printed ;3/6/2018 'r IydroCADO 10.00-20 s/n 09320 02017 NydroCAD Software Solutions LLC Paqe 4 Subcatchment 1 P: Drainge area to Elm Street (DP#1) ' Hydrograph 1.67 cfs —Runoff ' Type III 24-hr 2 Year - Hartford Rainfall=3.13" ' Runoff Area=1.987 ac Runoff Volume=0.164 of Runoff Depth>0.99" , - - - - - - Flow Length_534' LL Tc_14.1 min ' CIV_74 5 6 7 8 9 10 11 12 13 14 15 16 17 1f; 19 20 21 22 23 24 Time (hours) ' ' 3980 - Drainage Conditions - final Type /I/24-hr 2 Year- Hartford Rainfall=3.13" Prc , rnd. h,/ ' ,cwlett-Packard Company Printed 3/6/2018 'rlydroCAD610.00-20 s/n 09320 ©2017 HydroCAD Software Solutions LLC Page 5 Sumniarye for 11"ubcatchment 2P.- Drainage to Water Quality Swale ' Runoff = 1.28 cfs @ 12.22 hrs, Volume= 0.123 af, Depth> 1.22" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-24.00 hrs, dt= 0.05 hrs Type III 24-hr 2 Year - Hartford Rainfall=3.13" Area (ac) CN Description 0.713 71 >75% Grass cover, Good, HSG B/D ' 0.162 66 Woods, Good, HSG B/D 0.339 98 IMPERVIOUS 1.214 78 Weighted Average 0.875 72.08% Pervious Area 0.339 27.92% Impervious Area ' Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 0.6 8 0.1490 0.23 Sheet Flow, Grass Sheet Flow Grass: Short n= 0.150 P2= 3.13" ' 3.6 26 0.1203 0.12 Sheet Flow, Woodland Sheet Flow Woods: Light underbrush n= 0.400 P2= 3.13" f .! / l(_l" !, i\) o*t l.s 6 @ JVV, d PY��o�Y4E eE Flow ' Grass: Short n= 0.150 P2= 3.13" 1.3 106 0.0396 1.39 Shallow Concentrated Flow, Grass Shallow Conc. Short Grass Pasture Kv= 7.0 fps ' 0.5 54 0.1097 1.66 Shallow Concentrated Flow, Woodland Shallow Conc. Woodland Kv= 5.0 fps 1.3 153 0.0815 2.00 Shallow Concentrated Flow, Grass Shallow Conc. Short Grass Pasture Kv= 7.0 fps ' 15.0 422 Total 1 3980 - Drainage Conditions - final Type Ill 24-hr 2 Year- Hartford Rainfall=3.13" , PmIDarec' f--4y !-'C-Aett-Packard Company Printed 3/6/2018 HydroCADO 10.00-20 s/n 09320 ©2017 HydroCAD Software Solutions LLC Pacie 6 Suh-catchiment 2P: Drainage to Water Quality Swale ' Hydrograph 1.28 cfs —Runoff ' Type III 24-hr 2 Year - Hartford Rainfall=3.13" , 1 - Runoff Area=1.214-ac Runoff Volume=0.123 of Runoff DepthA.22" Flow Length=422' o , LL Tc=15.0 min CN=78 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) , ' 3980 - Drainage Conditions - final Type ///24-hr 2 Year- Hartford Rainfall=3.13" !-'mpar^ci f1 !4cwlctt-Packard Company Printed 3/6/2.018 i lydroCADO 10.00-20 s/n 09320 ©2017 HydroCAD Software Solutions LLC Page 7 ' Suirtmary fab° Subcatchment M Narth East Catchment Area ' Runoff = 1.73 cfs @ 12.12 hrs, Volume= 0.142 af, Depth> 0.94" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-24.00 hrs, dt= 0.05 hrs Type III 24-hr 2 Year - Hartford Rainfall=3.13" Area (ac) CN Description 1.070 71 >75% Grass cover, Good, HSG B/D ' 0.541 66 Woods, Good, HSG B/D 0.210 98 IMPERVIOUS 1.821 73 Weighted Average ' 1.611 88.47% Pervious Area 0.210 11.53% Impervious Area ' Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.1 100 0.1028 0.32 Sheet Flow, Grass Sheet Flow Grass: Short n= 0.150 P2= 3.13" ' 0.4 46 0.0668 1.81 Shallow Concentrated Flow, Grass Shallow Conc. Short Grass Pasture Kv= 7.0 fps P J .eHkl�l\`L `""L-_t�.�L L�I.__. t IU1,1;5 'd �.Y6:�' G*.Y L� �mLP.iLtlFX ElIY u'6ltl fir. ' Woodland Kv= 5.0 fps 0.4 63 0.1300 2.52 Shallow Concentrated Flow, Grass Shallow Conc. Short Grass Pasture Kv= 7.0 fps ' 0.3 106 0.0129 5.58 4.38 Pipe Channel, 12" RCP 12.0" Round Area= 0.8 sf Perim= 3.1' r= 0.25' n= 0.012 Concrete pipe, finished 7.7 445 Total 3930 m Drainage Conditions - final Type 111 24-hr 2 Year- Hartford Rainfall=3.13" , [ 'cwlct±_Packard Company Printed 3/6/2018 I{ydroCAD 10.00-20 s/n 09320 ©2017 HydroCAD Software Solutions LLC Page g ,7 bcatchment 3P- Ncrth-East Catchment Area t Hydrograph 1.73 efs —Runoff , Type III 24-hr 2 Year m Hartford Rainfall_3.13" , Runoff Area=1.821 ac Runoff Volume_0.142'af N Runoff Depth>0.94" -- - - - -- - - -- -flow LengtM_445` o Tc_7.7 min ' CN=73 5 6 7 6 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) , 3980 - Drainage Conditions - final Type 11124-hr 2 Year- Hartford Rainfall=3.13" "-, ' '-',rdc-tt Pacf-card Company Printed. ;3 VP018 I',ydroCADO 10.00-20 s/n 09320 ©2017 I IydroCAD Software Solutions LLC Page 9 ' 77rrn7"t'@ary for 111�ubcatchmcnt T.- Westerly Catchment Area Runoff = 2.93 cfs �7a 12.20 hrs, Volume= 0.282 af, Depth> 0.99" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-24.00 hrs, dt= 0.05 hrs Type III 24-hr 2 Year- Hartford Rainfall=3.13" Area (ac) CN Description 0.402 60 >75% Grass cover, Good, HSG A/D 1,405 71 >75% Grass cover, Good, HSG B/D 0,022 54 Woods, Good, HSG A/D 0.917 66 Woods, Good, HSG B/D 0.006 55 Woods, Good, HSG B 0.674 98 IMPERVIOUS 3A26 74 Weighted Average 2.752 80.33% Pervious Area ' 0.674 19.67% Impervious Area Tc Length Slope Velocity Capacity Description ' min feet ft/ft ft/sec cfs 47 100 0.1230 0.35 Sheet Flow, GRASS SHEET FLOW rr= 0.1 JO r 2= J.1 J ' 0.2 17 0.070 i 1.6EEalpocnP Eoncontrated FIoir , GRASS SHALLOW CONC. Short Grass Pasture I<v= 7.0 fps 1.3 110 0.0754 1.37 Shallow Concentrated Flow, WOODS SHALLOW CONC. Woodland Kv= 5.0 fps 4.5 247 0.0169 0.91 Shallow Concentrated Flow, GRASS SHALLOW CONC. Short Grass Pasture Kv= 7.0 fps 1.7 95 0.0352 0.94 Shallow Concentrated Flow,WOODS SHALLOW CONC. ' Woodland Kv= 5.0 fps 0.9 299 0.0241 5.38 142.04 Channel Flow, FLOW IN BROOK Area= 26.4 sf Perim= 29.3' r= 0.90' ' n= 0.040 Winding stream, pools &shoals 13.3 868 Total 3980 - Drainage//Condition�ys(- final Type 11124-hr 2 Year- Hartford � Rainfall 3./13" , F -,,Pf1c t' P a.Ci� and �.o f pi.Ai y !-,irin+e i ydroCAD® 10.00-20 s/n OJJ20 ©2017 HydroCAD Software Solutions LLC Page 10 'ub-cat&.mc—nt 4-P: Westerly Catchment Area , Hydrograph 2.93 cfs -, —Runoff Type III 24-hr 2 Year - Hartford Rainfall_3.13" ' Runoff Area=3.426 ac Runoff Volume=0.282 of N Runoff Depth>0.99" Flow Length=868° LL Tc=13.3 min ' CN=74 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) , 1 1 3980 - Drainage Conditions - final Type ///24-hr 2 Year- Hartford Rainfall=3.13" rr'-paror, iD�1 1 ! ?-,,kfictt. rackard Comp.-ny rrintcd. 3/6/2018 Ily roCAD010.00--20 s/nOS320 @2017 HydroCAD Software Solutions LLC Pacie 11 ' r� mbar yr for rntr ztC L art 77: Ccom-tyard Drala7gc to Existing Yard Drain Runoff = 0.32 cfs @ 12.10 hrs, Volume= 0.024 af, Depth> 1.28" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-24.00 hrs, dt= 0.05 hrs Type III 24-hr 2 Year- Hartford Rainfall=3.13" Area (ac) CN Description 0.157 71 >75% Grass cover, Good, HSG B/D 0,064 98 IMPERVIOUS 0.221 79 Weighted Average 0.157 71.04% Pervious Area 0.064 28.96% Impervious Area Tc Length Slopc Ve!ouity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.2 79 0.0403 0.21 Sheet Flow, Grass Sheet Flow Grass: Short n= 0.150 P2= 3.13" ' F�: A h11-,,-,e FA 'P: Courtyard Draiange to Existing Yard Drain c 5- Hydrog7raph 0.34. 0.32 cfs ^-Runoff 0.32': 0.3- - Type III 24-hr 0.28_ 2 Year--Hartford Rainfall=3.13" 0.26 Runoff Area=0.221 ac 0.24 Runoff Volume=0.024 of 0.22- - 0.2- Runoff DepthA.28" 018 Flow Length=79' 0.16- Slope=0.0403 L2 0.14 - -- - - -Tc=6.2-min 0.12-: GN--79- 0.1. 0.08 0.06- 0.04 --- I- - -- - - - - 0.02 -- - - - -- -- ---- - -- - 0 5 6 7 8 9 10 11 12 13 14 1'5- 16 17 18 19 20 21 22 23 24 Time (hours) 3980 - Drainage Conditions - final Type N 24-hr 2 Year- Hartford Rainfall=3.13" Tr,d'. ' ',-vviett rackard Company !Tinted 2161?018 I!.y�L'roCAD@10.00-20 s/nO93-00 @2017 I-fVdroCAD Software Solutions LLC Page 12 r17, r Op- r" - M-O-€angc to Existing Yard Drain Runoff 0.52 cfs @ 12.14 hrs, Volume= 0.042 af, Depth> 1.48" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-24.00 hrs, dt= 0.05 hrs Type III 24-hr 2 Year - Hartford Rainfall=3.13" Area (ac) CN Description 0.202 71 >75% Grass cover, Good, HSG B/D 0.141 98 IMPERVIOUS 0.343 82 Weighted Average 0.202 58.89% Pervious Area 0.141 41.11% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.1 101 0.0336 0.21 Sheet Flow, Grass Sheet Flow Grass: Short n= 0.150 P2= 3.13" 1.6 91 0.0199 0.94 Shallow Concentrated Flow, Grass Shallow Conc. -_-9,7 1 92 Total-- --- -- Short Grass Pasture Kv= 7.0 fps GP. Courtyard Draiange to Existing Yard Drain Hydrograph 0.55- 0.52 cfs —Runoff ' 0.5 Type III 24-hr 0.45- 2 Year - Hartford Rainfall=3.13"- - 0.4- Run-off Area=O.343 ac Runoff Volume=0.042 of 0.35- Runoff DepthA.48" 0.3 Flow tength=1-92' 0 LL 0.25- Tc=9.7 min CN=82 0.2- 0.15- j 0.05- 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) ' 3980 - Dr°atnage Conditions - final Type 11124-hr 2 Year- Hartford Rainfall=3.13" °y !:'(_-wlett P"-cl:urd Compny Printer! 3/6/?018 I ydroCADO i 0.00-20 s/n 09320 ©2017 I-"IydroCAD Software Solutions LLC Page 13 ' '�r^ Lrary f(a 17u',(�:tchurnent 7"1- Drainage to Proposed Yard Drain ' Runoff = 0.13 cfs @ 12.10 hrs, Volume= 0.009 af, Depth> 1.41" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 5.00-24.00 hrs, dt= 0.05 hrs Type III 24-hr 2 Year - Hartford Rainfall=3.13" 1 Area ) CN Description tion p 0.050 71 >75% Grass cover, Good, HSG B/D ' 0.030 98 IMPERVIOUS 36� 0.080 81 Weighted Average 0.050 62.50% Pervious Area ' 0.030 37.50% Impervious Area To Length Slope Velocity Capacity Description ' (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, GuLwtchii ieni 7P: Deainage to Proposed Yard Drain 9Hdrograph 0.14 __ 0.13 cfs —Runoff 0.12 Type III 24-hr 0.11 2 Year - Hartford Rainfall-3.13" 0,1"" Runoff Area=0.080 ac 0.09 Runoff Volume=0.009 of ' Runoff Depth>1.41'° v 0.08 - - - - - Tc=6.0 min c 0.07- - - LL CN_81 ' 0.06 0.05 0.04 - - ----- -_-- ' 0.03 - - -- 0.02 - - - - 1 -5 6 7 8 9 10 11 12 13 14 15 16 17 18 9 20 21 22 23 24 Time (hours) 3980 - Drainage Conditions - final Type ///24-hr 2 Year- Hartford Rainfall=3.13 --'­�,,Ictt raackard Compor rrint.�d ",/(-/?018 1 !y,roCADO I C 00-20 shi 09320 @ 2017 HydroCAD Software Solutions LLC Page 14 `71um, -M-Iry f�r Pcrnc! Wa,.'Llcr nu'n!!!y and Detention Basin X Inflow Area = 1.214 ac, 27.92% Impervious, Inflow Depth > 1.22" for 2 Year - Hartford event Inflow = 1.28 cfs @ 12.22 hrs, Volume= 0.123 of Outflow = 0.08 cfs @ 15.87 hrs, Volume= 0.037 af, Atten= 94%, Lag= 219.1 min Primary = 0.08 cfs @ 15.87 hrs, Volume= 0.037 of Routing by Stor-Ind method, Time Span= 5.00-24.00 hrs, dt= 0.05 hrs Peak Elev= 222.14' @ 15.87 hrs Surf.Area= 6,521 sf Storage= 3,896 cf Flood Elev= 224.00' Surf.Area= 7,716 sf Storage= 10,021 cf Plug-Flow detention time= 389.8 min calculated for 0.037 of (30% of inflow) Center-of-Mass clet. time= 255.0 min ( 11,1111.8 - 856.8 ) \/n11!M(' Invert AvaiI.Storage Storage Description #1 221,50' 10,021 cf Custom Stage Data(Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store 221.50 5,670 0 0 222.00 6,327 2,999 2,999 2102 00 7,71 C 7,022 1 -f, 1 Device Routin__ Invert Outlet Devices _ ' #1 Primary 220.50' 12.0" Round Culvert L= 55.0' CPP, square edge headwall, Ke= 0.500 Inlet/Outlet Invert= 220.50'/220.22' S= 0.0051 Cc= 0.900 n= 0.012, Flow Area= 0.79 sf #2 Device 1 222.10' 36.0"Wx4.0" H Vert. Orifice/Grate C= 0.600 PrimaryOutFlow Max=0.08cfs@15.87hrs HW=222.14' (FreeDischarge) 't—l--Culvert (Passes 0.08 cfs of 3.51 cfs potential flow) 't-2=Orifice/Grate (Orifice Controls 0.08 cfs @ 0.64 fps) ' 3980 „ Drainage Conditions - final Type 11124-hr 2 Year- Hartford Rainfall=3.13" r?" � , `:rdlctt rackai-d rrC mpu—tn Prlllt r 3/�/`,Q1i3 i iydroCAD© 10.00-20 s/n Og320 ©2017 I-HydroCAD Software Solutions LLC Page 15 ' Pond 10P. 'Watcr Qera rite and Detention Basin Hydrograph ' 1.28 cfs —Inflow —Primary Inflow Area=1 .214 ac Peak E-lev=222.14' ' Storage=3,896 cf N C V_ 0.08 cfs v 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) 3880 - Drainage Conditions - final Type /11 24.-hr 2 Year- Hartford Rainfall=3.13" 7-cl�ard Comi--)-nv Printer! �/F/9018 Lt , . — I I I lye i oCA11,01 0,00-20 s/n 00320 2017_1-1ydroCAD Software Solutions LLC Page 16 Y f O- F Lin1r, 8,!-!- n�!',AW 7 AVERY BROOK (DP#,2) Inflow Area = 7.105 ac, 20.52% Impervious, Inflow Depth > 0.91" for 2 Year - Hartford event Inflow = 5.29 cfs Ca) 12.16 hrs, Volume= 0.537 of Primary = 5.29 cfs @ 12.16 hrs, Volume= 0.537 af, Atten= 0%, Lag= 0.0 min Primary outflow= Inflow, Time Span= 5.00-24.00 hrs, dt= 0.05 hrs Link 8L: DRAIN TO AVERY BROOK (DP#2) Hydrograph F5.29 cfs F- Inflow Primary Inflow ATea--7.105 ac 3...- 0 2-- 0 '6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) ! 398Q - Drainage Conditions - final Typo 111 24-hr 10 Year- Hartford Rainfall=4.93" -1 1 l-, I-!"`,Pv1c'tt-I uGkc`Z,rd Cam am, Printod ?/6/201 q I-lydroCADOO 10.00-20 s/n 09320 ©2017 HydroCAD Software Solutions LLC page 17 ! t�P° °af hment 1 P: Drain .e to Elm Street (DP#1) Hydrograph ! 4.11 cfs —Runoff 4 ---- -- Type III 24-hr- ! 10 Year - Hartford Rainfall=4.93" Runoff Area=1.987 ac ! 3 - - Runoff Volume=0 381 of Runoff Depth>2.30" N Flow Length=534' r _- -- - -- _- - - -- - _ - Tc=14.1 min LL 2 CN=74 ! 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 ! Time (hours) Subcatchment 2P: Drainage to Water Quality Swale Hydrograph 3- 2.84 cfs —Runoff ! Type III 24-hr 10 Year - Hartford Rainfall=4.93" ! Runoff Area=1.214 ac RunoffVolume=0268,of 2 Runoff DepM>2.64" Flow Length=422' Tc=15.0 0 min 1 - r ! 0 7 8 5 6 9 10 11 12 13 14 15 1l6 17 1 '8 1 9 20 21 22 23 24 Time (hours) 29M - D€au gage Conditions final Type 11124-hr 10 Yo-ar- Hartford Rainfall=4.93LL " ' i dhoCn O iGM 20 Sin 03320 ©2017 !i uraCAD Software Solutions LLC Pacle, 18 N11crf�L.,East Catchment Area dHycdrograph 4.39 cfs Type III 24-hr 4 10 Year - Hartford Rainfall=4.93" ' Runoff Area_1.821 ac Runoff Volumee0.337 of ' 3 Runoff Depth>2.22" Flow Length-445' Tc_7.7 min " 2 CN=73 1 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) , Subcatchment 413: Westerly Catchment Area Hycdrograph , 7.22 cfs —Runoff 7- Type III 24-hr 10 Year - Hartford Rainfall=4.93" 6. Runoff Area_3.426 ac Runoff Volume-0.657 of Runoff De th>2.30" Flow Length=868' 3 4. - _ t LL Tc_13.3 min 3 - - -CiNC74-_ 2 -- - -' - - 0 5 6 7 8 9 10 11 12 13 14 15 16 117 18 19 20 21 22 23 24 Time (hours) ' 3080 Drahage Conditions- -. final Type 11124--hr 10 Year- Hartford Rainfall=4.93" rr,,rtrly+t..!"Cckard Comp n,y [yi�roCAD t 10.00 20 s/n 00020 ©2017 1-iydroCAD Software Solutions LLC Page 19 rrt?^ tch�ttot t 17P: Courtyard Dralange to Existing Yard Drain Hydrograph 0.75 _ - --- - - 0.69 cfs —Runoff 0.7 - - - - _ --- 0.65 Type III 24-hr ' 0.6 10 Year - Hartford,Rainfall=4.93" 0.55 - -- - Runoff Area=0.221-ac 0.5 - - - Runoff Volume=0.050 of ' N 0.45- Runoff Depth>2.74" 0.4 -- - -- - - _ - - - _ Flow Length_79' - a - - Slope=0.0403 T E 0.35 0.3-:. _ - Tc=6.2 min 0 CN=79 .25- 0.2 - - --- -- - - -- 0.15- 0.05-, ' 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) Suhcaitchment 613: Courtyard Draiange to Existing Yard Drain ' Hydrograph ' 1.05 cfs —Runoff 1- - - Type III 24-hr 10 Year - Hartford Rainfall=4.93" Runoff Area=0.343 ac Runoff Volume=0086 of Runoff Depth>3.0'1" Flow Length=192' a LL Tc=9.7 min CN=82 o 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) 396.0 - Drahage Conditions - final Type /I/24-hr 10 Year- Hartford Rainfall 4.9311 rk-rd, M:-,c llydroCADOJ 0,00-210 s/n 093120 C 20-17 HydroCAD Software Solutions LLC Paue 20 17,_r!�r.ntc�?mcnt 7!1° Dc'mmaga !a Proposed Yard Drain Hydrograph 0.3-- 0.28 0.27 cfs ' --- ' --- - - -- ---- --- —Runoff ' 0,26- Type][1-24-hr 0.24 10 Year- Hartford Rainfall=4.93" 0.22' -Runoff'Area--0.080 ac 0.2- Runoff Volume=0.019-af 0,18--- Runoff Depth>2.92" j� 0.16-' T-c--6.0 min- . CN=81 L2 L 0.14 0.12- 0.1- 0.08--- 0.06- 0.04-' 0.02- 5 6 7 8 9 10 1 i 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) Pond 10P: Water Quality and Detention Basin Hydrograph F 2.84-c—f s- -F Inflow I—Primary Inflow Area=1 .214 ac Peak Elev=222.33® 2- -Storage-50-51 cf- - 0 LL 1.05 cfs 01 1 1 5 6 7 89 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) ■ 3080 Drainage Conditions - final Type 11124-hr 10 Year- Hartford Rain.7fall=4.93" ■ � ��:_1,,.` � �-.., r r ,"tj�GLf n�i�f:�i(�� r�(T�I��;I�'�r I?rinfiC�l' �`>/����1 r `i i •i iiydiuCADO iMO-70 -/n 09320 ©2017 l lydroCAD Software Solutions LLC Page 21 Link SLR DRAIM, TO. AVERY BROOK (DP#2) Hydrograph ' 14 12.86- - cis —Inflow Primary 12 Inflow Area=7.105 ac 10 - _ -- -- - 9 - N S" ' a 6 5- 4 - - - -- 3' - - 2... 1 ' 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) Dva!nage Conditions - final Type III-24-hr P-5 Year- Hartford Rainfall=6.06" 1- n LL , a ck'aLrd Cc,Ill 1- jycL_c)GADG 10.00 20 2017 1 lydruCAD Software Solutions LLC Page 22 'f7,1 (--at&mc nt I P- Pr-'rng -rc- to Elm Street (DP#.I) Hydrograph 6- 5.80 cfs ---- - - -- - —Runoff ' Type Ill 24-hr 5- 25 Year - Hartford-Rainfall=6.06" Runoff Area=1.987 ac Runoff Volume=0.534 of 4- Runoff Depth>3.23" Flow Length=534' 3 LL Tc=14.1 min CN=74 2- 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) Subcatchment 2P- Drainage to Water Quality Swale Hydrograph 3.89 C—fS Type Ill 24-hr 25 Year - Hartford Rainfall=6.06" Runoff Area=1.214 ac 3- Runoff Volume=0,366 of Runoff Depth>3.62" Flow Length=422' .0 2- Tc=1 5-.0 inin CN=78 0- . ... .. . . .. . 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 2 1 0 2 1 1 2 1 2 2 1 3 2 1 4 Time (hours) 1 ' 3980 Drajinage Conditions final Type 11124-hr 25 Year- Hartford Rainfall-6.06" !f:,!ctt !'-_chard Comp._ny trd F 1ydroC/ DO 10.00-20 s/n 09020 ©2017 I-HydroCAD Software Solutions LLC Paw 23 Subs-atchr ent ?P: North-East Catchment Area Hydrograph ' 6.23 efs —Runoff Type III 24-hr ' 25 Year - Hartford Rainfall=6.06" 5 - Runoff Area=1:821 ac- ' Runoff Volume=0,476 of 4- - - Runoff Depth>3.13 Flow Length=445' Tc=.7 min 73 1 v 5 6 7 8 9 10 11 12 12 14 15 16 17 18 19 20 21 22 23 24 ' Time (hours) Subcatchment 4P: Westerly Catchment Area Hydrograph 11 10.19 efs ®Runoff ' 10 - - - - - Type III 24-hr 9- 25 Year - Hartford Rainfall=6.06" ' s Runoff-Area`3.426 ar- Runoff Volume=OM1 of N 7 - ---- Runoff Depth>3.23" - ' 6 - Flow-Length-868' LL 5 - - -- - - -- - - - - -- Tc_13 3_min -- -- CN74 ' 3- 2- - - --- j r -- - -- - --- .- - ,-- - -- -- --- 0 5 6 7 8 9 10 11 12 13 14 15 16 17 118 19 20 21 22 23 24 Time (hours) '41?P-0 ,, Drainage Conditions final Type ///24-hr 25 Year- Hartford Rainfall 6.06" n , ,. F., i i r ;In+i [�nnl 71 1� rn _ ,-„ n ii iryr! ?(/`/nrj P E �.ruC;";DO i ,/i) CSv�O Oc .�C i 7 I lyc,1oCAD Software Solutions LLC ;'dye 2 - 77r Courtyard P?[7l.angc to Existing Yard Drain ' Hydrograph �.0.94cfs Type III 24-hr 25 Year - Hartford Rainfall=6.06" , Runoff Area=0.221 ac Runoff Volume=0.069 of y Runoff Depth>3.73" ' Flow Length=79' LL Slope=0.0403 '/' ' Tc=6.2 min CN=79 5 6 7 8 9 '10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) , Subcatchment GP: Courtyard Draiange to Existing Yard Drain Hydrograph , 1.40 cfs ®Runoff Type III 24-h r ' 25 Year - Hartford Rainfall=6.06" Runoff Area=0.343 ac ' - Runoff Volume,0.1-15 of . .. Runoff Depth>4.04" Flow Length=192' , LL Tc=9.7 min CN=82 , o , ,5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) ',980 Dr=n! age Conditions -° final Tyne It/24--hr 2-5 Year- Hartford Rainfall. 6.06" -n ,CI � r r�.U_r�..d Cc n'S, a!—, , i1JhoCADO 10.00 20 /n 00310 @ 2017 HydroCAD Software Solutions LLC Pacac 25 ' �r(� t i2rnent 7P. Drn_,nagre to Proposed Yard Drain Hydrograph 0.4. - - 0.38 0.36 cfs 0.36 0.34 --- -- Type III 24-hr ' 0.32 25 Year o Hartford Rainfall=6.06" 0.3_ -- - --- --- - -- - - - -- Runoff Area=0.080 ac 0.28 0.26 - - Runoff Volume=0.026 of ' 0.24-- Runoff Depth>3.94" 0.22 — - -- - - - - - Tc=6.0 min - 3 0.2 ---' -- - - - - ,0 0.18 - CN=81 - 0.16- 0.14- ' 0.12 _ 0.1 - - - - - 0.08• 0.06- ' 0.04. _ 0.02 V 6 6 7 8 9 i0 1, 12 13 14. 15 16 1`7 18 19 20 21 22 23 24 ' Time (hours) Pond 10P- Water Quality and Detention Basin Hydrograph 4 3.89 cfs —Inflow ' —Pnmary Inflow Area=1 .214 ac ' Peak Elev-222.47° 3 - - - - -- - Storage-6097 cf ' 2.0, cfs 0 2- 0- . .. 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) ?TT(2 DM-Friage Conditions final Typo ///2,,4-hr 25 Yo^r- Hartford Rainfall-6,06" ' n.- .viz r r r r ,I •�{ n li f-1 �n - -, rZ q.raC;A_0 iO.OQ 20 s/n 09320 02017 I;wciroCAD Software Solutions I_LC Paw-, 26 Hydrograph 20 - -- - , 19 - 18.27 cfs - - - - —Inflow Primary 18 - - 17 hllaF m Area®7®105 ac 16- 15 - 14- 13 - , 12` N 11 -- - - - -- - --- 10 - - - - - - - --= -- -- - - 0 LL 9 - -- - 8 7,- 6 5 4- 3 2- 1 V5 6 7 8 9 10 11 12 13 14 i5 16 P 18 19 20 21 22 2.3 24 Time (hours) , 1 ' ,12'2-Q DM!hage Conditions - final Type 11124-hr 100 Year- Hartford Rainfall-7.79" ydi uC„CC i 0.00 �0 /n 000�0 ©2017 i fydroCP,D Software Solutions LLC Page 27 A !,bcatcftment 1 P: Pratn-gc 'rca to Elan Street (DP#1) Hyclrograph 9__ 8.49 cfs Runoff 8 Type III 24-hr ' - Runoff Arenfall_7.79" 7 - ------ - _ - 100 Yea r - Hartford Rai a--1- 987-ac Runoff Volume=0.783 of 6 -- Runoff Depth>4.73" 5 ---- -,-- ---; - - - - - - :- ------ -Flow Length=534'. Tc=1 .1 min LL _ -. - --- - - - - _. - - - _. _.- -. - 4 ®74 3- 2- 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 ' Time (hours) Sub-catchment 2P: Drainage to Water Quality Swale Hydrograph 6 5.54 cfs —Runoff ' Type III 24-hr 5-1 100 Year- Hartford Rainfall=7.79" ' Runoff Area_1.214 ac 4 _ ---- - - - Runo;ff Volume=0.524 af_ Runoff Depth>5.18" ' Flow Length-4_ 22' $ 3 - - - - - - - - _ Tc_15.0-min LL CN=78 1 - - --- - - -- - - - -- 0 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) ' 3980 - Drainage Conditions - final Type 11124-hr 100 Year- Hartford Rainfall=7.79" r , p :r^ ' ' , ' '�iv!ctt. P"ack(ard Compa�Ry Printed 3/G/2018 l lydro&'66 10.00 20 s/n 000-10 ©2017 IHydroC/1D Software Solutions LLC Page 29 ' ' Ubcatci rlrlicnt S P- Courtyard Draiange to Existing Yard Drain Hydrograph ' 1.33 cfs —Runoff Type III 24-hr ' 100 Year - Hartford Rainfall=7.79"° Runoff Area=0.221 ac 1 - Runoff-Vol ume-0:098 af- Runoff Depth>5.31" N Flow Length=79' o Slope=0.0403 LL Tc=6.2 min CN=79 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 ' Time (hours) Subcatchment 6P: Courtyard Drainage to Existing Yard Drain ' -- -- - Hydrograph 2 1.94 cfs —Runoff Type III 24-hr 100 Year- Hartford Rainfall=7.79" ' Runoff Area=0.1343 ac Runoff Volume=0.162 of Runoff Depth>5.65" ' Flow Length=192' 1 - - - - -- - -- - - ---Tc=-9.7-rnin LL ' CN-82 1 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) ?IM7� Drn,�,nage Conditions - final Type 111,94--hr 100 Year- Hartford Rainfall=7 79" dcoCAD Cm. i O.CG-2' N 320 Oc 210,7 1 :ydroCAD Software Solutions LLC Page 30 atchment 7P D- raftnacra to Proposed Yard Drain Hydrograph 0.55- - 0.5 0.50 cfs —Runoff , Type III 24-hr o.45 100 Yew - Hartford Rainfall=7.79" 0.4- Runoff Area=0.080 ac Runoff Volume=0.037 of 0.35- Runoff Depth>5.54" "6 0.3- -- -- - - Tc=6.0-min - 0.251 CN=81- 0.2, 0.15- 0.1- 0.05-'1, 5 6 7 8 9 10 ii 12 13 14 15 16 17 1S 19 20 21 22 23 24 Time (hours) Pond I OP. Water Quality and Detention Basin Hydrograph 6- F5.54 cfs 1. Inflow Primary 5- Inflow Area=1 .214 ac Peak Elev=222.70' 4 Storage=7,795-cf 1 3.16 cfs 3- 0 2- 0 5 6 7 8 6 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) ' 3980 - Drainage Conditions v final Type 11124-hr 100 Year- Hartford Rainfall=7.79" r';' ,r• i ' 'jy ' ..�•.nf!Ctt ! ackard Company Printed 3/6/2318 ,di0CAF)6 i.Cv 20 s/n VJJ�O ©2017 1 lydroC�D Software Solutions LLC Page 31 ' Unk SL DRAIN 7C ,VERY BROOK (DP#2) Hydrograph ' 30 - -- - - - - - 28.24 cis —Inflow 28 - —Primary 26 Inflow Area=7.105 ac 24 - - -- -- - - -----, - - 20 - 3 - LL 14- - 12 10 8 - --- - ---- - - -- -- - - -- 6.- 2 2- - 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 ' Time (hours) 1 APPENDIX C ' NIgCS Soil Map & Data 1 1 1 1 1 1 1 1 ' Custom Soil Resource Report 3 Soil Map /Oa210 lOY210 706330 0U'39J 70645) 706510 !Ublo 41°49'54'N 41°49'54"N 1 �• 41 10 r f 1 41°49 37'N 41°49 3T'N ' 7033210 706270 705330 70M 7064.50 705510 705570 3 3 M Map Scale:1:2,480 if printed on A portrait(8.5"x 11")sheet Meter; i; NN 0 35 70 140 210 Feet /V 0 10D 200 400 600 Map projection:Web Mercator Caner coordinates:WGS84 Edge tics:UTM Zone 18N WGS84 6 MAP LEGEND MAP INFORMATION Area of Interest(AOI) Spoil Area Area of Interest(AOI) Stony Spot Soils ® Very Stony Spot Soil Map Unit Polygons ryir Soil Map Unit Lines `-' Wet Spot Other Soil Map Unit Points •�Special Point Features Special Line Features Blowout Water Features Borrow Pit Clay Spot ( Closed Depression Gravel Pit Gravelly Spot Landfill Lava Flow Marsh or swamp Mine or Quarry 0 Miscellaneous Water ® Perennial Water V Rock Outcrop + Saline Spot ° Sandy Spot Severely Eroded Spot Sinkhole Slide or Slip Sodic Spot ' Custom Soil Resource Report Map Unit Legend ' Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI 21A Ninigret and Tisbury soils,0 to 5 0.1 0.5% percent slopes 32B Haven and Enfield soils,3 to 8 1.7 6.6% percent slopes 64C Cheshire fine sandy loam,8 to 0.8 3.2% — 15 percent slopes,very stony 221A Ninigret-Urban land complex,0 2.9 10.9% to 5 percent slopes ' 232B Haven-Urban land complex,0 9.4 35.5% to 8 percent slopes 23YC IVlanchester-Urban land 4.2 15.8% ' complex,3 to 15 percent slopes 263B Cheshire-Urban land complex, 4.4 16.6% 3 to 8 percent slopes 306 Udorthents-Urban land complex - 2.9 10.9% Totals for Area of Interest Yr.5 100.0% Map Unit Descriptions ' The map units delineated on the detailed soil maps in a soil survey represent the p soils or miscellaneous areas in the survey area. The map unit descriptions, along ' with the maps, can be used to determine the composition and properties of a unit. A map unit delineation on a soil map represents an area dominated by one or more major kinds of soil or miscellaneous areas. A map unit is identified and named according to the taxonomic classification of the dominant soils. Within a taxonomic class there are precisely defined limits for the properties of the soils. On the landscape, however, the soils are natural phenomena, and they have the ' characteristic variability of all natural phenomena. Thus, the range of some observed properties may extend beyond the limits defined for a taxonomic class. Areas of soils of a single taxonomic class rarely, if ever, can be mapped without ' including areas of other taxonomic classes. Consequently, every map unit is made up of the soils or miscellaneous areas for which it is named and some minor components that belong to taxonomic classes other than those of the major soils. Most minor soils have properties similar to those of the dominant soil or soils in the map unit, and thus they do not affect use and management. These are called noncontrasting, or similar, components. They may or may not be mentioned in a ' particular map unit description. Other minor components, however, have properties and behavioral characteristics divergent enough to affect use or to require different management. These are called contrasting, or dissimilar, components. They generally are in small areas and could not be mapped separately because of the ' scale used. Some small areas of strongly contrasting soils or miscellaneous areas 1 8 Custom Soil Resource Report ' �� iucriiriic U uy 6 speulal syrnbul uri thu rnup-. lr included in the database for a given area, the contrasting minor components are identified in the map unit descriptions along with some characteristics of each. A few areas of minor ' components may not have been observed, and consequently they are not mentioned in the descriptions, especially where the pattern was so complex that it was impractical to make enough observations to identify all the soils and ' miscellaneous areas on the landscape. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The objective of mapping is not to delineate ' pure taxonomic classes but rather to separate the landscape into landforms or landform segments that have similar use and management requirements. The delineation of such segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, however, ' onsite investigation is needed to define and locate the soils and miscellaneous areas. An identifying symbol precedes the map unit name in the map unit descriptions. ' Fach description includes general facts about the unit and gives important soil properties and qualities. Soils that have profiles that are almost alike make up a soil series. Except for ' differences in texture of the surface layer, all the soils of a series have major horizons that are similar in composition, thickness, and arrangement. Soils of one series can differ in texture of the surface layer, slope, stoniness, , salinity, degree of erosion, and other characteristics that affect their use. On the basic Cif.-wuh clifiui c:nc°c:s, a soil series is divided into soil phases. Most of the areas shown on the detailed soil maps are phases of soil series. The name of a soil phase 1 commonly indicates a feature that affects use or management. For example, Alpha silt loam, 0 to 2 percent slopes, is a phase of the Alpha series. Some map units are made up of two or more major soils or miscellaneous areas. ' These map units are complexes, associations, or undifferentiated groups. A complex consists of two or more soils or miscellaneous areas in such an intricate ' pattern or in such small areas that they cannot be shown separately on the maps. The pattern and proportion of the soils or miscellaneous areas are somewhat similar in all areas. Alpha-Beta complex, 0 to 6 percent slopes, is an example. An association is made up of two or more geographically associated soils or , miscellaneous areas that are shown as one unit on the maps. Because of present or anticipated uses of the map units in the survey area, it was not considered practical or necessary to map the soils or miscellaneous areas separately. The , pattern and relative proportion of the soils or miscellaneous areas are somewhat similar. Alpha-Beta association, 0 to 2 percent slopes, is an example. An undifferentiated group is made up of two or more soils or miscellaneous areas ' that could be mapped individually but are mapped as one unit because similar interpretations can be made for use and management. The pattern and proportion of the soils or miscellaneous areas in a mapped area are not uniform. An area can ' be made up of only one of the major soils or miscellaneous areas, or it can be made up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example. Some surveys include miscellaneous areas. Such areas have little or no soil ' material and support little or no vegetation. Rock outcrop is an example. 9 ' ' Custom Soil Resource Report ' G-OLate ®f Connecticut ' 21A--Ninigret and Tisbury soils, 0 to 5 percent slopes Map Unit Setting ' National map unit symbol: 2tx07 Elevation: 0 to 1,260 feet Mean annual precipitation: 36 to 71 inches Mean annual air temperature: 39 to 55 degrees F Frost-free period. 140 to 240 days Farmland classification: All areas are prime farmland ' Map Unit Composition Ninigret and similar soils: 60 percent Tisbury and similar soils: 25 percent ' Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. ' Description of Ninigret Setting I_andform: OufiNash plains, outwash terraces, drainageways, moraines, ' depressions, kames, kame terraces L.andform position (two-dimensional): Backslope, shoulder, footslope, summit L rrn` pti t c'n (thr^e-ditren<<innaQ: Sidc slope, crest, tread, rise, dip Down-slope shape: Convex, linear, concave ' Across-slope shape: Convex, concave Parent material: Coarse-loamy eolian deposits over sandy and gravelly glaciofluvial deposits derived from gneiss, granite, schist, and/or phyllite Typical profile Ap - 0 to 8 inches: fine sandy loam ' Bw1 - 8 to 16 inches: fine sandy loam Bw2- 16 to 26 inches: fine sandy loam 2C-26 to 65 inches: stratified loamy sand to loamy fine sand ' Properties and qualities Slope: 0 to 5 percent Depth to restrictive feature: 18 to 38 inches to strongly contrasting textural stratification ' Natural drainage class: Moderately well drained Runoff class: Very low Capacity of the most limiting layer to transmit water(Ksat): Moderately low to high (0.14 to 14.17 in/hr) Depth to water table: About 17 to 39 inches Frequency of flooding: None Frequency of ponding: None Salinity, maximum in profile: Nonsaline (0.0 to 1.9 mmhos/cm) Available water storage in profile: Low(about 3.4 inches) ' Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 2w Hydrologic Soil Group: C ' Hydric soil rating: No 10 Custom Soil Resource Report ' Description of Tisbury Setting ' Landform: Outwash terraces, valley trains, deltas, depressions, depressions, outwash plains Landform position (two-dimensional): Toeslope ' Landform position (three-dimensional): Tread, talf, dip Down-slope shape: Concave across-slope shape: Concave ' Parent material: Coarse-silty eolian deposits over sandy and gravelly glaciofluvial deposits derived from granite, schist, and/or gneiss Typical profile ' Ap- 0 to 8 inches: silt loam Bw1 - 8 to 18 inches: silt loam Bw2- 18 to 26 inches: silt loam ' 2C-26 to 65 inches: stratified extremely gravelly sand Properties a«d qualit:ios Slope: 0 to 5 percent ' Depth to restrictive feature: 24 to 36 inches to strongly contrasting textural stratification Natural drainage class: Moderately well drained Runoff class: Low , Ca.paciiy of the most limiting layer to transmit wafer(Ksat): Moderately low to high (0.11". to 1f(.17 in/hi) Depth to water table: About 18 to 30 inches , Frequency of flooding: None Frequency of ponding: None Salinity, maximum in profile: Nonsaline (0.0 to 1.9 mmhos/cm) ' Available water storage in profile: Low(about 4.3 inches) Interpretive groups Land capability classification (irrigated): None specified ' Land capability classification (nonirrigated): 2e Hydrologic Soil Group: C Hydric soil rating: No Minor Components Merrimac Percent of map unit. 5 percent Landform: Outwash plains, outwash terraces, moraines, eskers, kames Landform position (two-dimensional): Backslope, footslope, summit, shoulder Landform position (three-dimensional): Side slope, crest, riser, tread ' Down-slope shape: Convex Across-slope shape: Convex Hydric soil rating: No ' Agawam Percent of map unit: 5 percent Landform: Moraines, kames, kame terraces, outwash plains, outwash terraces ' Landform position (two-dimensional): Backslope, shoulder, footslope, summit Landform position (three-dimensional): Side slope, crest, tread, riser, rise Down-slope shape: Convex Across-slope shape: Convex ' 11 ' Custom Soil Resource Report Hydric soil rating: No ' Haven Percent of map unit: 3 percent Landform: Outwash terraces, moraines, kames, kame terraces, outwash plains Landform position (two-dimensional): Shoulder, footslope, backslope, summit Landform position (three-dimensional): Side slope, crest, riser, tread, rise, dip Down-slope shape: Convex Across-slope shape: Convex Hydric soil rating: No Raypol Percent of map unit. 2 percent Landform: Outwash plains, outwash terraces, valley trains, deltas, depressions, depressions Landform position (two-dimensional): Toeslope Landform position (three-dimensional): Tread, dip, talf Down-slope shape: Concave Across-slope shape: Concave Hydric soil rating: Yes ' 32B,-- Haven and Enfield soUs, 3 to 8 percent slopes Map Unit Setting ' National map unit symbol: 91ms Elevation: 0 to 1,200 feet Mean annual precipitation: 43 to 54 inches Mean annual air temperature: 45 to 55 degrees F Frost-free period. 140 to 185 days Farmland classification: All areas are prime farmland ' Map Unit Composition Haven and similar soils: 60 percent Enfield and similar soils: 25 percent ' Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. ' Description of Haven Setting Landform: Outwash plains, terraces ' Down-slope shape: Convex Across-slope shape: Linear Parent material: Coarse-loamy eolian deposits over sandy and gravelly ' glaciofluvial deposits derived from granite and/or schist and/or gneiss Typical profile Ap-0 to 7 inches: silt loam ' Bw1 - 7 to 14 inches: silt loam Bw2- 14 to 20 inches: silt loam 12 Custom Soil Resource Report , SC --20 iu 24 inches. fine sandy loarn 2C- 24 to 60 inches: stratified very gravelly sand to gravelly fine sand Properties and qualities ' Slope: 3 to 8 percent Depth iu restrictive ;eature: More than 80 inches Natural drainage class: Well drained , Runoff class: Low Capacity of the most limiting layer to transmit water(Ksat): Moderately high to high (0.57 to 1.98 in/hr) , Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Available water storage in profile: Low(about 5.1 inches) , Interpretive groups Land capability classification (irrigated): None specified ' Land capability classification (nonirrigated): 2e Hydrologic Soil Group: B Hydric soil rating: No Description of Enfield ' Setting Landform: Outwash plains, terraces , Down-slope shape: Convex Across-slope shape: Linear Parent Inatorivl. Coarse-silty eolian deposits over sandy and gravelly glaciofluvial , deposits derived from granite and/or schist and/or gneiss Typical profile O- 0 to 3 inches: slightly decomposed plant material ' O-3 to 4 inches: moderately decomposed plant material Ap-4 to 12 inches: silt loam Bw1 - 12 to 20 inches: silt loam ' Bw2-20 to 26 inches: silt loam Bw3-26 to 30 inches: silt loam 2C- 30 to 37 inches: stratified coarse sand to very gravelly loamy sand 3C-37 to 65 inches: stratified very gravelly coarse sand to loamy sand ' Properties and qualities Slope: 3 to 8 percent Depth to restrictive feature: More than 80 inches ' Natural drainage class: Well drained Runoff class: Medium Capacity of the most limiting layer to transmit water(Ksat): Moderately high to ' high (0.57 to 1.98 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None , Frequency of ponding: None Available water storage in profile: Moderate(about 6.6 inches) Interpretive groups ' Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 2e Hydrologic Soil Group: B Hydric soil rating: No ' 13 ' ' Custom Soil Resource Report Minor Components ' Agawam Percent of map unit: 4 percent Landform: Outwash plains, terraces Down-slope shape: Linear Across-slope shape: Linear Hydric soil rating: No ' Branford Percent of map unit: 3 percent Landform: Terraces, outwash plains ' Down-slope shape: Linear Across-slope shape: Linear Hydric soil rating: No ' Ninigret Percent of map unit: 2 percent Landform: Outwash plains, terraces ' Down-slope shape: Linear Across-slope shape: Concave Hydric soil rating: No ' Tisbury Percent of map unit: 2 percent Landform: Terraces, outwash plains Down-slope shape: Concave ' Across-slope shape: Linear Hydric soil rating: No ' Raypol Percent of map unit: 2 percent Landform: Depressions, drainageways Down-slope shape: Concave ' Across-slope shape: Concave Hydric soil rating: Yes Unnamed, gravelly surface ' Percent of map unit: 2 percent Hydric soil rating: No 64C—Cheshire fine sandy loam, 8 to 15 percent slopes, very stony ' Map Unit Setting National map unit symbol: 9lg0 Elevation: 0 to 1,200 feet Mean annual precipitation: 43 to 54 inches Mean annual air temperature: 45 to 55 degrees F ' Frost-free period: 140 to 185 days Farmland classification: Not prime farmland ' 14 Custom Soil Resource Report ' Map Unit Composition Cheshire and similar soils: 80 percent ' Minor components: 20 percent Fstimates are based on observations, descriptions, and transects of the mapunit. Description of Cheshire , Setting Landform: Hills, till plains , Down-slope shape: Linear Across-slope shape: Linear Parent material: Coarse-loamy melt-out till derived from basalt and/or sandstone and shale ' Typical profile Ap-0 to 8 inches: fine sandy loam Bw1 - 8 to 16 inches: fine sandy loam ' Bw2- 16 to 26 inches: fine sandy loam C-26 to 65 inches: gravelly sandy loam Properties and qualities , Slope: 8 to 15 percent Percent of area covered with surface fragments: 1.6 percent Depth to restrictive feature: More than 80 inches ' Natural drainage class. Well drained Runoff class: Low Capacity of the most limiting layer to transmit vvater(Ksat): Moderately high to high (0.57 to 5.95 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None ' Available water storage in profile: Moderate (about 7.8 inches) Interpretive groups ' Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 6s Hydrologic Soil Group: B Hydric soil rating: No ' Minor Components Wilbraham ' Percent of map unit: 5 percent Landform: Depressions, drainageways Down-slope shape: Concave , Across-slope shape: Concave Hydric soil rating: Yes Wethersfield ' Percent of map unit. 5 percent Landform: Hills, drumlins Down-slope shape: Linear Across-slope shape: Convex Hydric soil rating: No Yalesville , Percent of map unit: 5 percent 15 , ' Custom Soil Resource Report Landform: Ridges, hills g Down-slope shape: Convex ' Across-slope shape: Linear Hydric soil rating: No Watchaug ' Percent of map unit: 3 percent Landform: Till plains, hills Down-slope shape: Linear ' Across-slope shape: Concave Hydric soil rating: No Menlo ' Percent of map unit: 2 percent Landform: Depressions, drainageways Down-slope shape: Concave ' Across-slope shape: Concave Hydric soil rating Yes MA—Madgret-Urban Viand complex, 0 to 5 percent slopes ' Map Unit Setting National map unit symbol: 9lk7 Elevation: 0 to 1,200 feet Mean annual precipitation: 43 to 56 inches ' Mean annual air temperature: 45 to 55 degrees F Frost-free period: 140 to 185 days Farmland classification: Not prime farmland ' Map Unit Composition Ninigret and similar soils: 40 percent ' Urban land: 35 percent Minor components: 25 percent Estimates are based on observations, descriptions, and transects of the mapunit. ' Description of Ninigret Setting Landform: Outwash plains, terraces ' Down-slope shape: Linear Across-slope shape: Concave Parent material: Coarse-loamy eolian deposits over sandy and gravelly ' glaciofluvial deposits derived from granite and/or schist and/or gneiss Typical profile Ap- 0 to 8 inches: fine sandy loam ' Bw1 - 8 to 16 inches: fine sandy loam Bw2- 16 to 26 inches: fine sandy loam 2C-26 to 65 inches: stratified very gravelly coarse sand to loamy fine sand ' 16 Custom Soil Resource Report , Properties and qualities ' Slope: 0 to 5 percent Depth to restrictive feature: More than 80 inches , Natural drainage class: Moderately well drained Runoff class: Very low Capacity of the most limiting layer to transmit water(Ksat): Moderately high to , high (0.57 to 5.95 in/hr) Depth to water table: About 18 to 30 inches Frequency of flooding. None ' Frequency of ponding: None Available water storage in profile: Low(about 5.9 inches) Interpretive groups ' Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 2w Hydrologic Soil Group: B Hydric soil rating: No , Description of Urban Land Typical profile , H- 0 to 6 inches: material Interpretive groups , Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 8 Hydrologic Soil Group: D Hydric soil rating: Unranked , Minor Components Merrimac ' Percent of map unit: 5 percent Landform: Outwash plains, terraces, kames Down-slope shape: Linear , Across-slope shape: Linear Hydric soil rating: No Agawam , Percent of map unit. 5 percent Landform: Outwash plains, terraces Down-slope shape: Linear ' Across-slope shape: Linear Hydric soil rating: No Haven , Percent of map unit: 5 percent Landform: Outwash plains, terraces Down-slope shape: Convex , Across-slope shape: Linear Hydric soil rating: No Udorthents ' Percent of map unit: 5 percent Down-slope shape: Convex Across-slope shape: Linear Hydric soil rating: No , 17 ' ' Custom Soil Resource Report ' Sudbury Percent of map unit: 3 percent ' Landform: Outwash plains, terraces Down-slope shape: Concave Across-slope shape: Linear ' Hydric soil rating: No Raypol Percent of map unit: 2 percent Landform: Depressions, drainageways Down-slope shape: Concave Across-slope shape: Concave ' Hydric soil rating: Yes ' 232B--Haven-Urban land complex, 0 to 8 percent slopes ' Map Unit Setting National map unit symbol: 91k1 Elevation. 0 to 1,200 feet ' Mean annual precipitation: 43 to 56 inches Mean annual air temperature: 45 to 55 degrees F Frost-free period. 140 to 185 days Farmland classification: Not prime farmland Map Unit Composition Haven and similar soils: 40 percent ' Urban land: 35 percent Minor components: 25 percent Estimates are based on observations, descriptions, and transects of the mapunit. ' Description of Haven Setting ' Landform: Outwash plains, terraces Down-slope shape: Convex Across-slope shape: Linear Parent material: Coarse-loamy eolian deposits over sandy and gravelly ' glaciofluvial deposits derived from granite and/or schist and/or gneiss Typical profile ' Ap- 0 to 7 inches: silt loam Bw1 - 7 to 14 inches: silt loam Bw2 14 to 20 inches: silt loam BC-20 to 24 inches: fine sandy loam ' 2C-24 to 60 inches: stratified very gravelly sand to gravelly fine sand Properties and qualities Slope: 0 to 8 percent ' Depth to restrictive feature: More than 80 inches ' 18 Custom Soil Resource Report ' Natural drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water(Ksat): Moderately high to , high (0.57 to 1.98 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None , Available water storage in profile: Low(about 5.1 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 2e Hydrologic Soil Group: B Hydric soil rating: No , Description of Urban Land Typical profile , H-0 to 6 inches: material Interpretive groups Land capability classification (irrigated): None specified , Land capability classification (nonirrigated): 8 Hydrologic Soil Group: D Hydric soil rating: Unranked , Minor Components Branford ' Percent of map unit: 5 percent Landform: Outwash plains, terraces Down-slope shape: Linear Across-slope shape: Linear Hydric soil rating: No Agawam , Percent of map unit. 5 percent Landform: Outwash plains, terraces Down-slope shape: Linear ' Across-slope shape: Linear Hydric soil rating: No Udorthents ' Percent of map unit: 5 percent Down-slope shape: Convex Across-slope shape: Linear Hydric soil rating: No , Ninigret Percent of map unit. 3 percent , Landform: Outwash plains, terraces Down-slope shape: Linear Across-slope shape: Concave Hydric soil rating: No , Enfield Percent of map unit. 3 percent Landform: Outwash plains, terraces , 19 , ' Custom Soil Resource Report ' Down-slope shape: Convex Across-slope shape: Linear ' Hydric soil rating: No Tisbury Percent of map unit: 2 percent Landform: Outwash plains, terraces Down-slope shape: Concave Across-slope shape: Linear ' Hydric soil rating: No Raypol Percent of map unit. 2 percent Landform: Depressions, drainageways Down-slope shape: Concave Across-slope shape: Concave ' Hydric soil rating: Yes 1 ' 237C� land complex, 3 to 15 percent slopes ' Map Unit Setting National map unit symbol: 91kr Elevation: 0 to 1,200 feet ' Mean annual precipitation: 43 to 56 inches Mean annual air temperature: 45 to 55 degrees F Frost-free period: 140 to 185 days Farmland classification: Not prime farmland ' Map Unit Composition Manchester and similar soils: 40 percent ' Urban land: 35 percent Minor components: 25 percent Estimates are based on observations, descriptions, and transects of the mapunit. ' Description of Manchester Setting Landform: Eskers, kames, outwash plains, terraces ' Down-slope shape: Convex Across-slope shape: Convex Parent material: Sandy and gravelly glaciofluvial deposits derived from sandstone ' and shale and/or basalt Typical profile Ap-0 to 9 inches: gravelly sandy loam ' Bw-9 to 18 inches: gravelly loamy sand C- 18 to 65 inches: stratified extremely gravelly coarse sand to very gravelly loamy sand 1 ' 20 Custom Soil Resource Report ' Properties and qualities Slope: 3 to 15 percent ' Depth to restrictive feature: More than 80 inches Natural drainage class: Excessively drained Runoff class: Low Capacity of the most limiting layer to transmit water(Ksat): High to very high (5.95 to 19.98 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None ' Frequency of ponding: None Available water storage in profile: Very low(about 2.4 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 3e Hydrologic Soil Group: A ' Hydric soil rating: No Description of Urban Land Typical profile ' H-0 to 6 inches: material Interpretive groups ' Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 8 Hydrologic Soil Group: D Hydric soil rating: Unranked ' Minor Components Hartford ' Percent of map unit: 5 percent Landform: Outwash plains, terraces Down-slope shape: Linear ' Across-slope shape: Linear Hydric soil rating: No Penwood ' Percent of map unit: 5 percent Landform: Outwash plains, terraces Down-slope shape: Convex ' Across-slope shape: Linear Hydric soil rating: No Branford ' Percent of map unit. 5 percent Landform: Outwash plains, terraces Down-slope shape: Linear ' Across-slope shape: Linear Hydric soil rating: No Ellington ' Percent of map unit: 5 percent Landform: Outwash plains, terraces Down-slope shape: Linear Across-slope shape: Linear ' 21 ' ' Custom Soil Resource Report Hydric soil rating: No ' Udorthents Percent of map unit: 5 percent Down-slope shape: Convex Across-slope shape: Linear ' Hydric soil rating: No 263B—Cheshire-Urban land complex, 3 to 8 percent slopes Map Unit Setting National map unit symbol: 911d Elevation. 0 to 1,200 feet ' Mean annual precipitation: 43 to 56 inches Mean annual air temperature: 45 to 55 degrees F Frost-free period. 140 to 185 days Farmland classification: Not prime farmland Map Unit Composition Che--hire and similar soils. 40 percent ' Urban land: 35 percent Minor components: 25 percent Estimates are based on observations, descriptions, and transects of the mapunit. ' Description of Cheshire Setting ' Landform: Till plains, hills Down-slope shape: Linear Across-slope shape: Linear Parent material: Coarse-loamy melt-out till derived from basalt and/or sandstone and shale Typical profile ' Ap-0 to 8 inches: fine sandy loam Bw1 -8 to 16 inches: fine sandy loam Bw2- 16 to 26 inches: fine sandy loam C-26 to 65 inches: gravelly sandy loam Properties and qualities Slope: 3 to 8 percent ' Depth to restrictive feature: More than 80 inches Natural drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water(Ksat): Moderately high to ' high (0.57 to 5.95 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None ' Frequency of ponding: None Available water storage in profile: Moderate (about 7.8 inches) 22 Custom Soil Resource Report ' groups Interpretive s ' p 9 p Land capability classification (irrigated): None specified ' Land capability classification (nonirrigated): 2e Hydrologic Soil Group: B Hydric soil rating: No Description of Urban Land Typical profile H- 0 to 6 inches: material , Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 8 Hydrologic Soil Group: D Hydric soil rating: Unranked Minor Components ' Watchaug Percent of map unit: 5 percent ' Landform: Hills, till plains Down-slope shape: Linear Across-slope shape: Concave , Hydric soil rating: No Wilbraham Percent of map unit: 5 percent ' Landform: Depressions, drainageways Down-slope shape: Concave Across-slope shape: Concave ' Hydric soil rating: Yes Wethersfield Percent of map unit: 5 percent ' Landform: Drumlins, hills Down-slope shape: Linear Across-slope shape: Convex Hydric soil rating: No ' Udorthents Percent of map unit: 5 percent Down-slope shape: Convex ' Across-slope shape: Linear Hydric soil rating: No Yalesville ' Percent of map unit: 3 percent Landform: Ridges, hills Down-slope shape: Convex , Across-slope shape: Linear Hydric soil rating: No Menlo ' Percent of map unit: 2 percent Landform: Drainageways, depressions Down-slope shape: Concave ' Across-slope shape: Concave 23 ' Custom Soil Resource Report ' Hydric soil rating: Yc: 306--A)dorthents-Urban land complex ' Map Unit Setting National map unit symbol: 91mg Elevation: 0 to 2,000 feet Mean annual precipitation: 43 to 56 inches Mean annual air temperature: 45 to 55 degrees F ' Frost-free period: 120 to 185 days Farmland classification: Not prime farmland ' Map Unit Composition Udorthents and similar soils: 50 percent Urban land: 35 percent Minor components: 15 percent ' Estimates are based on observations, descriptions, and transacts of the mapunit. Description of Udorthents Setting Down-slope shape: Convex Across-slope shape: Linear Parent material: Drift Typical profile A -0 to 5 inches: loam ' C1 - 5 to 21 inches: gravelly loam C2-21 to 80 inches: very gravelly sandy loam Properties and qualities ' Slope: 0 to 25 percent Depth to restrictive feature: More than 80 inches Natural drainage class: Well drained Runoff class: Medium Capacity of the most limiting layer to transmit water(Ksat): Very low to high (0.00 to 1.98 in/hr) Depth to water table: About 54 to 72 inches ' Frequency of flooding: None Frequency of ponding: None Available water storage in profile: Moderate (about 6.8 inches) ' Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 3e ' Hydrologic Soil Group: B Hydric soil rating: No ' 24 Custom Soil Resource Report ' Description of Urban Land Typical profile , H-0 to 6 inches: material Interpretive groups ' Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 8 Hydrologic Soil Group: D Hydric soil rating: Unranked ' Minor Components Unnamed, undisturbed soils ' Percent of map unit: 8 percent Hydric soil rating: No Udorthents,wet substratum , Percent of map unit: 5 percent Down-slope shape: Convex Across-slope shape: Linear ' Hydric soil rating: No Rock outcrop Percent of map unit: 2 percent , Hydric soil rating: No 25 ' References American Association of State Highway and Transportation Officials (AASHTO). ' 2004. Standard specifications for transportation materials and methods of sampling and testing. 24th edition. American Society for Testing and Materials (ASTM). 2005. Standard classification of ' soils for engineering purposes. ASTM Standard D2487-00. Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of wetlands and deep-water habitats of the United States. U.S. Fish and Wildlife ' Service FWS/OBS-79/31. Federal Register. July 13, 1994. Changes in hydric soils of the United States. ' Federal Register. September 18, 2002. Hydric soils of the United States. Hurt, G.W., and L.M. Vasilas, editors. Version 6.0, 2006. Field indicators of hydric soils in the United States. ' National Research Council. 1995. Wetlands: Characteristics and boundaries. Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service. U.S. Department of Agriculture Handbook 18. http://www.nres.usda.gov/wps/portal/ ' nres/detail/national/soils/?cid=nres142p2_054262 Soil Survey Staff. 1999. Soil taxonomy: A basic system of soil classification for making and interpreting soil surveys. 2nd edition. Natural Resources Conservation ' Service, U.S. Department of Agriculture Handbook 436. http:// www.nres.usda.gov/wps/portal/nres/detail/national/soils/?cid=nres l 42p2_053577 ' Soil Survey Staff. 2010. Keys to soil taxonomy. 11th edition. U.S. Department of Agriculture, Natural Resources Conservation Service. http:// www.nres.usda.gov/wps/portal/nres/detail/national/soils/?cid=nresl 42p2_053580 ' Tiner, R.W., Jr. 1985. Wetlands of Delaware. U.S. Fish and Wildlife Service and Delaware Department of Natural Resources and Environmental Control, Wetlands Section. ' United States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of Engineers wetlands delineation manual. Waterways Experiment Station Technical Report Y-87-1. 1 United States Department of Agriculture, Natural Resources Conservation Service. National forestry manual. http://www.nres.usda.gov/wps/portal/nres/detail/soils/ home/?cid=nres142p2_053374 ' United States Department of Agriculture, Natural Resources Conservation Service. National range and pasture handbook. http://www.nres.usda.gov/wps/portal/nres/ detail/national/landuse/rangepasture/?cid=stelprdb1043084 ' 26 Custom Soil Resource Report ' i> , =ZCSUI-C;S Coi1SrVation S vice e c National soil survey handbook, title 43041. http://www.nres.usda.gov/wps/portal/ nres/detail/soils/scientists/?cid=nres142p2_054242 ' United States Department of Agriculture, Natural Resources Conservation Service. 20001. L,,ii i I yGurC Ic;gIUriS and IniA}or Lrid resource areas of the United States, the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook ' 296. http://www.nres.usda.gov/wps/portal/nres/detail/national/soils/? cid=nres 142 p2_053624 United States Department of Agriculture, Soil Conservation Service. 1961. Land , capability classification. U.S. Department of Agriculture Handbook 210. http:// www.nrcs.usda.gov/lnternet/FSE—DOCUMENTS/nrcsl42p2—O52290.pdf 1 1 27 , APPENDIX n ' r. L.UYN: Computation 1 1 1 1 1 1 Partialh Full Pipe Flout Calculations - U.S.Units ' IL Calculation of Discharge.Q.and werage velocim V for pipes more than half ful ' Instructions: fry r clues fr.hue baw& Cakula:iors m,vee my Inputs Calculations ' Pipe Diameter.1) 8 � in Pipe Diameter,Q .6dG66 ft , Depth of flow tt ?.9 in Pipe Radius..r 0,333333 ft (must have y>D 1121 ' Circ.Segment Height.h d.QBB ft Full Pipe`tannin ' roughness..nm O.Q n Central Angle.g radians Channel bottom Cross-Sect.Area.A ft= ' slope.5 O�QI ft `ft Wetted Perimeter,P= 1.9 ft , Calculations Ni draulic Radius.R= &18 g- n/n f 1.40625 Dischat- Q 1.37cfs Partially Full Manning A%T.j°elocit%,V 3.92 ft/sec , roughness.n= U.012 pipe`'a full i(A,' , *1QQ=; ] r=Df2 h='r-fit �l Viydrauhe radius) R=A P Plannift Equation) 1 (1.49/n)(A)(R= 'GCS- „ .h `,=Qf'A P 2 carcc 3S Y h ' r Par ialh• Fun Pipe Flog Parameters , (More Than Half F`uU) , r-(O- 5u1 O A - nt` -� 1 CPm,v+i^n•vraA f^"n In_ n/»- __- 1 7G-rt./n_n GZ$n c (fnn n C r ,/n - !1 APPENDIX E ' water Quality Volume Calculations Poad, Stage Storage Report 1 3980 - Drainage Conditions - final Type 11124-hr 100 Year- Hartford Rainfall=7.79" , Prrn rr,� by r.. nwIcNM-Packard Comp rly Printed 3/6/2018 1--lydroCADO 10.00-20 s/n 09320 ©2017 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 1APr Water Ouaiity and Detention Basin ' Elevation Surface Storage (feet) (sq-ft) (cubic-feet) ' 221.50 5,670 0 221.55 5,736 285 221.60 5,801 574 ' 221.65 5,867 865 221.70 5,933 1,160 221.75 5,999 1,459 221.80 6,064 1,760 , 221.85 6,130 2,065 221.90 6,196 2,373 221.95 6,261 2,685 ' 222.00 6,327 2,999 222.05 6,396 3,317 9"m am am 222.15 6,535 3,964 222.20 6,605 4,292 , 222.25 6,674 4,624 222.30 6,744 4,960 222.35 6,813 5,299 , 222.40 6,883 5,641 222.45 6,952 5,987 222.50 7,022 6,336 ' 222.55 7,091 6,689 222.60 7,160 7,045 222.65 7,230 7,405 222.70 7,299 7,768 ' 222.75 7,369 8,135 222.80 7,438 8,505 222.85 7,508 8,879 222.90 7,577 9,256 , 222.95 7,647 9,637 223.00 7,716 10,021 223.05 7,716 10,021 , 223.10 7,716 10,021 223.15 7,716 10,021 223.20 7,716 10,021 223.25 7,716 10,021 ' 223.30 7,716 10,021 223.35 7,716 10,021 223.40 7,716 10,021 223.45 7,716 10,021 ' 223.50 7,716 10,021 223.55 7,716 10,021 223.60 7,716 10,021 , 223.65 7,716 10,021 223.70 7,716 10,021 223.75 7,716 10,021 223.80 7,716 10,021 , 223.85 7,716 10,021 223.90 7,716 10,021 223.95 7,716 10,021 224.00 7,716 10,021 ' Wha in Mews—DPI Project No.:3980 PP g J ' March 6, 2018 ' Water Quality Volume Calculations for Drywell Drainage 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= 27.92% (IAA 2P) R=0.05 +0.009(I) R= 0.05 + 0.009(27.92) ' R =0.301 A =drainage area in acres = 1.214 acres WQV = (1")(R)(A acres)/12 inches per foot WQV = (1")(0.301)(1.214 acres)/12 inches per foot ' WQV =0.030 acre-feet required = 1327.68 cft ' Proposed BMP Thc; l,ropose�' quality basili is proposed to provide 3,639 cft of water quality storage below the first orifice outlet elevation at ELEV. 222.1 . The water quality basin storage will provide greater than 200% of the determined water quality volume draining to the basin. APPENDIX F , P, rairtaNe Area A1npv , 1 PLANNING DEPARMENT IN-HOUSE REFERRAL FORM DATE: 3/7/18 TO: Matt Galligan, Michael Gantick, Walter Summers, Jeff Doolittle Ray Favreau, Chris Dougan, Heather Oatis, Kevin Cooney, Tony Manfre, John Caldwell, Andrea Confrancesco, Chris Duchesne, Vincent Stetson FROM: Michele Lipe, AICP, Director of Planning The Planning&Engineering Departments have received plans for the following projects: Appl 18-10P, Wapping Mews Site Plan Modification Location: 50 Elm Street ® Site Plan ❑ Subdivision No. Acres 5 ac Zone A-20 ❑ Industrial ❑ Commercial ® Residential No. Lots/Units Water: ® Public ❑ Private Well Sewerage: ® Public ❑ Septic System Parking expansion and minor unit expansions for handicap Project Description: accessibility Future Town-owned property involved? ® Yes ❑ No ❑ new street(s) ❑ new detention area ❑ new open space/recreation area ❑ active ❑passive Planning Department notes: Please comment by 3/30/18 and return to the Planning Department. P.O.BOX 1167 21 JEFFREY DRIVE SOUTH WINDSOR,Cr 06074 PHONE:860.291.8755 ���� FAX:8onalsi .8757 c.com www.design professionalsinc.com CIVIL & TRAFFIC ENGINEERS / LAND SURVEYORS / PLANNERS / LANDSCAPE ARCHITECTS Serving Connecticut, Massachusetts, *Rhode Island LETTER OF TRANSMITTAL To: South Windsor Planning Department Date: 3/23/2018 DPI Project No. 3980 Re: Wapping Mews Site Plan Modification Submission 2-P&Z&IWA : : WE ARE SENDING YOU: ❑ Attached ❑ Under separate cover via the following items: ❑ Shop Drawings © Prints ❑ Renderings ❑ Specifications : ❑ Copy of Letter ❑ Change Order ❑ • COPIES DATE NO. DESCRIPTION 6 3/21/2018 1 Site Improvement Plan : THESE ARE TRANSMITTED AS CHECKED BELOW: : © For Approval ❑ For review and comment ❑ No exceptions taken • ❑ For your use ❑ For bids due ❑ Make corrections ❑ As requested ❑ Prints returned after loan to us ❑ Make corrections : REMARKS: Revised based on Architectural Coordination items : RECEIVED : MAR � 3 2018 S0t11H WINDSOR Pt.INNING DEPT. : • SIGNED: ! CC: Daniel H.Jameson,E.I.T. i 4Ow" at. 7-0� 0-le S-o-� ?d&U&Ot c� P V 1540 SULLIVAN AVENUE®SOUTH WINDSOR,CT 06074,2786 soR.co�' AREA CODE 860/644-2511 FAX 860/644-3781 OFFICE OF THE TOWN COUNCIL April 4, 2018 Mr. Matthew B. Galligan, Town Manager Town of South Windsor 1540 Sullivan Avenue South Windsor, CT 06074 Dear Mr. Galligan: At its Regular Meeting of April 2, 2018, the South Windsor Town Council approved the following Resolution: WHEREAS, Federal monies are available under the Connecticut Small Cities Community Development Block Grant Program, administered by the State of Connecticut, Department of Housing pursuant to Public Law 93-3 83, as amended; and WHEREAS, pursuant to Chapter 127c, and Part VI of Chapter 130 of the Connecticut General Statutes, the Commissioner of Housing is authorized to disburse such Federal monies to local municipalities; and WHEREAS, it is desirable and in the public interest that the Town of South Windsor make application to the State for $800,000 in order to undertake a Small Cities Community Development Program and to execute an Assistance Agreement therefore, should one be offered NOW, THEREFORE, BE IT RESOLVED BY THE South Windsor Town Council: 1. That it is cognizant of the conditions and prerequisites for State Assistance imposed by Part VI of Chapter 130 of The Connecticut General Statutes; and (Resolution Continued on Next Page) 2018 Small Cities Community Development Block Grant Program April 4, 2018 Page 2 2. That the filing of an application by the Town of South Windsor in an amount not to exceed $800,000 is hereby approved, and that Matthew B. Galligan, the Town Manager of the Town of South Windsor is hereby authorized and directed to file such Application with the Commissioner of the Department of Housing, to provide such additional information, to execute such other documents as may be required by the Commissioner, to execute an Assistance Agreement with the State of Connecticut for State financial assistance if such an Agreement is offered, to execute any amendments, rescissions, and revisions thereto, and to act as the authorized representative of the Town of South Windsor. Respectfully submitted Deborah W. Reid Clerk of the Council cc: George Daniels, Executive Director, Housing Authority Lisa Low, Ph.D., Lisa Low &Associates, LLC Patricia Perry, Director of Finance Michele Lipe, Director of Planning tOW N 8 fq` O � G � , V 9 Y,��30R Coaa4 �D*N St To� 0-1 S-0� ?&Uaolt <pa 4 wo 1540 SULLIVAN AVENUE • SOUTH WINDSOR, CT 06074 r�Osox•co�' TELEPHONE (860) 644-2511 April 3, 2018 Daniel Jameson Design Professionals, Inc. 22 Jeffrey Drive South Windsor, CT 06074 RE: Appl. #18-10P—Wapping Mews, 50 Elm St Dear Mr. Jameson: On April 3, 2018, the Inland Wetlands Agency/Conservation Commission through staff approved Appl. 18- 10P, Wapping Mews—50 Elm St—IWA/CC application for an erosion control certification for the expansion of a parking lot and installation of stormwater control structures on property located northerly of Elm St A-20 Residential 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. Bonds shall be collected in the amount of$2,000 to ensure proper placement and maintenance of erosion and sediment controls and $5,000 for installation and maintenance of stormwater structures. 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. Very truly yours, INLAND WETLANDS AGENCY/ CONSERVATION COMMISSION Je re pHFolgV, yEnvironmental Planner Barbara Kelly, Chairperson cc: Director of Planning Chief Building Official Town Engineer tpy1N Sfq Go w� 1540 SULLIVAN AVENUE• SOUTH WINDSOR, CT 06074 r�OSoa•co�� TELEPHONE (860) 644-2511 CERTIFIED MAIL 7014 2120 0003 3214 4006 April 10, 2018 South Windsor Housing Authority C/O Daniel Jameson Design Professionals, Inc. 21 Jeffrey Drive South Windsor, CT 06074 Re: Appl. 18-10 South Windsor Housing Authority Wapping Mews Site Plan Modification Dear Mr. Jameson, We are pleased to advise you that the Planning&Zoning Commission through staff review has approved your request for a site plan modification. This approval is for a parking lot expansion, sidewalk and small additions to accommodate handicap accessibility on property located at 50 Elm Street, A-20 zone as shown on plans prepared by Design Professionals, Inc. dated March 6, 2018, as revised. This approval is subject to the following modifications: 1. Prior to commencement of any site work, a meeting must be held with Town Staff. 2. No building permit will be issued until the final mylars have been filed in the Town Clerk's office. 3. This application is subject to the conditions of approval of the Inland Wetlands Agency/Conservation Commission, including bonds in the amount of$2,000 to ensure proper placement and maintenance of erosion and sedimentation controls and $5,000 for installation and maintenance of stormwater structures. 4. An as-built plan is required prior to issuance of a Certificate of Occupancy per Section 9.1.3 of the Zoning Regulations. 5. All plans used in the field by the developer must bear the stamp and authorized signature of the Town of South Windsor. 6. This approval does not constitute approval of the sanitary sewer, which can only be granted by the Water Pollution Control Authority. 7. The building street number must be included on the final plan. 8. Pavement markings must be maintained in good condition throughout the site drives and parking areas. 9. All free standing signs and/or building signs require the issuance of a sign permit before they are erected. 10. If a State Traffic Commission certificate is required,no building permits will be issued until the certificate has been issued(per CGS §14-311). 11. Zoning data table should be corrected to reflect the correct zone. Black and white transparent mylars of Sheet SP 1 with the above modifications,together with three print copies of the entire set of plans (including architectural elevations and landscaping plans)must be submitted to this Commission to be stamped and signed. The letter of approval of this Commission as well as Inland Wetlands Agency/Conservation Commission must be reproduced on the mylars. After the mylars have been signed by the Commission,they will be returned to you for filing in the Office of the Town Clerk. After filing these plans, a copy of the receipt must be submitted to the Planning Department. Sincerely, Michel Vip ,A I C P Director of Planning cc: Town Engineer Chief Building Official Assessor Superintendent of Pollution Control Fire Marshal