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G:\jobs\2482\2482.H\Docs\Applications\Site Plan - Berm\IWACC Submission\IWA-CC Abutter Notice.doc P.O. BOX 1167 21 JEFFREY DRIVE SOUTH WINDSOR, CT 06074 PHONE: 860.291.8755 FAX: 860.291.8757 www.designprofessionalsinc.com CIVIL & TRAFFIC ENGINEERS / PLANNERS / SURVEYORS / GIS ANALYSTS / LANDSCAPE ARCHITECTS Serving Connecticut, Massachusetts, & Rhode Island December 30, 2021 Re: Inland Wetlands & Watercourses / Conservation Application 542 King Street and 45 John Fitch Boulevard, South Windsor, CT 06074 Dear Abutting Property Owner: In accordance with Section 7.3b of the “Town of South Windsor Inland Wetlands, Watercourses, and Conservation Regulations”, we are required to notify you that an application has been filed on the property abutting yours and is subject to a hearing by the Inland Wetlands Agency/Conservation Commission. The application and plans are on file with the South Windsor Planning Department. As an abutting property owner, you are invited to the hearing to ask questions and/or give comments, however, you are not required to attend. You may also submit written comments regarding the application prior to the hearing if you so desire. For further information regarding the specific date this will heard please contact Jeff Folger, Environmental Planner/Conservation Officer, Planning Department, 860-644-2511, ext. 2229. If you have any questions regarding the specifics of the plans, please feel free to contact our office at 860-291-8755. Thank you. Sincerely, DESIGN PROFESSIONALS, INC. Peter DeMallie, President & Principal Cc: Town of South Windsor Client 542 King Street and 45 John Fitch Boulevard - Direct Abutters TOWN OF SOUTH WINDSOR, CONNECTICUT 12/30/2021 Parcel ID Site Address Owner Name Mailing Address Mailing City Mailing State Mailing Zip 47700095 95 JOHN FITCH BLVD MCGUIRE ROAD ASSOCIATES LLC 111 FARMBROOK LANE SOUTH WINDSOR CT 06074- 0000 47700073 73 JOHN FITCH BLVD CHURILO PETER PO BOX 98 BISSELL STA SOUTH WINDSOR CT 06074- 0000 47700059 59 JOHN FITCH BLVD CHURILO PETER PO BOX 98 BISSELL STA SOUTH WINDSOR CT 06074- 0000 50400542 542 KING STREET MCGUIRE ROAD ASSOCIATES LLC 111 FARM BROOK LANE SOUTH WINDSOR CT 06074- 0000 47700045 45 JOHN FITCH BLVD MCGUIRE ROAD ASSOCIATES LLC 111 FARM BROOK LANE SOUTH WINDSOR CT 06074- 0000 50400510 510 KING STREET UCCELLO ROBERT A & JESSICA 510 KING STREET SOUTH WINDSOR CT 06074- 0000 47700013 13 JOHN FITCH BLVD CARON DAVID PO BOX 1132 WESTERLY RI 02891- 0000 47700019 19 JOHN FITCH BLVD 19 JOHN FITCH BOULEVARD II LLC 19A JOHN FITCH BLVD SOUTH WINDSOR CT 06074- 0000 47700037 37 JOHN FITCH BLVD CIL REALTY INCORPORATED 157 CHARTER OAK AVE 3RD F HARTFORD CT 06109- 0000 50400500 500 KING STREET CALABRESE MARK 500 KING STREET SOUTH WINDSOR CT 06074- 0000 50400529 529 KING STREET BALTZ FRANK R & SHELDON NANCY J 529 KING STREET SOUTH WINDSOR CT 06074- 0000 50400574 574 KING STREET ST JARRE STEVEN J 574 KING STREET SOUTH WINDSOR CT 06074- 0000 50400561 561 KING STREET RUSSO THOMAS J & BEATA 561 KING STREET SOUTH WINDSOR CT 06074- 0000 50400511 511 KING STREET RUSSAK WALTER O & CASSIDY SUSAN 511 KING STREET SOUTH WINDSOR CT 06074- 0000 50400583 583 KING STREET RUSSAK MURIEL 721 BOUNDLINE RD WOLCOTT CT 06716- 0000 50400545 545 KING STREET RUSSAK ROBERT 545 KING STREET SOUTH WINDSOR CT 06074- 0000 58500059 59 MCGUIRE ROAD MCGUIRE ROAD ASSOCIATES LLC 111 FARM BROOK LANE SOUTH WINDSOR CT 06074- 0000 58500037 37 MCGUIRE ROAD SUNDERLAND EDWARD T III 12 STRONG ROAD SOUTH WINDSOR CT 06074- 0000 15600060 60 BURNHAM STREET TRUTH BAPTIST CHURCH OF -60 BURNHAM STREET SOUTH WINDSOR CT 06074- 0000 15600080 80 BURNHAM STREET TRUTH BAPTIST CHURCH OF -80 BURNHAM STREET SOUTH WINDSOR CT 06074- 0000 15600150 150 BURNHAM STREET KIDS-5 LLC 150 BURNHAM STREET SOUTH WINDSOR CT 06074- 0000 84100039 39 SPIELMAN ROAD DUNTZ KATHY L 39 SPIELMAN ROAD SOUTH WINDSOR CT 06074- 0000 500' 50 0 ' © ··· es i g n ro f e s s i o n a l s esign rofessionals· · · esign rofessionals N/F 500' ABUTTERS PARCEL ID STREET ADDRESS OWNER 1618 93 BURNHAM STREET WOOD LEAH & CAMERON 1619 101 BURNHAM STREET ARORA JAWAHAR LAL & REKHA 1620 105 BURNHAM STREET TOWN OF EAST HARTFORD 1621 107 BURNHAM STREET CHAN ERNESTO CALVERT & LOUISE P 1622 149 BURNHAM STREET P & Z ELLINGTON ROAD REALTY LLC 1623 157 BURNHAM STREET P & Z ELLINGTON ROAD REALTY LLC 4074 400 ELLINGTON ROAD MUMFORD CHARLES R SR 4075 405 ELLINGTON ROAD P & Z ELLINGTON ROAD REALTY LLC 15600060 60 BURNHAM STREET TRUTH BAPTIST CHURCH OF - 15600096 96 BURNHAM STREET SZUKI GEORGE H & CYNTHIA V 15600150 150 BURNHAM STREET KIDS-5 LLC 15600160 160 BURNHAM STREET CONN STATE OF 47700005 5 JOHN FITCH BLVD ALLIANCE ENERGY CORP 47700013 13 JOHN FITCH BLVD CARON DAVID 47700019 19 JOHN FITCH BLVD 19 JOHN FITCH BOULEVARD II LLC 47700037 37 JOHN FITCH BLVD CIL REALTY INCORPORATED 47700045 45 JOHN FITCH BLVD MCGUIRE ROAD ASSOCIATES LLC 47700059 59 JOHN FITCH BLVD CHURILO PETER 47700073 73 JOHN FITCH BLVD CHURILO PETER 47700084 84 JOHN FITCH BLVD TONYS TURTLE GAS LLC 47700090 90 JOHN FITCH BLVD GILL JASON 47700095 95 JOHN FITCH BLVD MCGUIRE ROAD ASSOCIATES LLC 50400469 469 KING STREET KELLEY BRITTANY 50400476 476 KING STREET GRAHAM BRIAN T & 50400479 479 KING STREET LIVINGSTON STEPHEN P & KIMBERLY 50400485 485 KING STREET MARSH STEVEN J 50400486 486 KING STREET SHELDON DAVID B & ELAINE R 50400491 491 KING STREET SOUTH WINDSOR TOWN OF 50400492 492 KING STREET MURPHY SHANNON 50400499 499 KING STREET TEDONE TAMARA 50400500 500 KING STREET CALABRESE MARK 50400509 509 KING STREET RUSSAK WALTER O 50400510 510 KING STREET UCCELLO ROBERT A & JESSICA 50400511 511 KING STREET RUSSAK WALTER O & 50400529 529 KING STREET BALTZ FRANK R & 50400542 542 KING STREET MCGUIRE ROAD ASSOCIATES LLC 50400545 545 KING STREET RUSSAK ROBERT 50400561 561 KING STREET RUSSO THOMAS J & BEATA 50400574 574 KING STREET ST JARRE STEVEN J 50400583 583 KING STREET RUSSAK MURIEL 50400588 588 KING STREET COLTON LISA A 50400593 593 KING STREET RIOUX NICOLE & DAVID 50400596 596 KING STREET VAZQUEZ EDWIN & NELIDA 50400599 599 KING STREET GALUSKA MICHAEL E 50400606 606 KING STREET BRENNAN JUSTINE 50400611 611 KING STREET AHLEMEYER WILLIAM F & 50400624 624 KING STREET WAINIKIEWICZ MARGARET L/U 54900244 244 MAIN STREET JONES ROBERT E JR & 58500020 20 MCGUIRE ROAD RAMIREZ PEDRO R 58500036 36 MCGUIRE ROAD DBB MANAGEMENT LLC 58500037 37 MCGUIRE ROAD SUNDERLAND EDWARD T III 58500059 59 MCGUIRE ROAD MCGUIRE ROAD ASSOCIATES LLC 58500067 67 MCGUIRE ROAD DBB MANAGEMENT LLC 84100039 39 SPIELMAN ROAD DUNTZ KATHY L 84100075 75 SPIELMAN ROAD TONUCCI RICHARD L & BERNICE A 84100083 83 SPIELMAN ROAD TONUCCI RICHARD L & BERNICE A © ··· es i g n ro f e s s i o n a l s © ··· es i g n ro f e s s i o n a l s · · · ’ · · · · ’ · © ··· es i g n ro f e s s i o n a l s © ··· es i g n ro f e s s i o n a l s STAKE TREES ONLY UPON THE APPROVAL OF THE LANDSCAPE ARCHITECT SEE STAKING DETAIL. WRAP TREE TRUNKS ONLY UPON THE APPROVAL OF THE LANDSCAPE ARCHITECT. SEE WRAPPING DETAIL. DO NOT HEAVILY PRUNE THE TREE AT PLANTING. PRUNE ONLY CROSSOVER LIMBS, CO-DOMINANT LEADERS, AND BROKEN OR DEAD BRANCHES. SOME INTERIOR TWIGS AND LATERAL BRANCHES MAY BE PRUNED; HOWEVER, DO NOT REMOVE THE TERMINAL BUDS OF BRANCHES THAT EXTEND TO THE EDGE OF THE CROWN. NOTE: FOR DIMENSIONS OF PLANTING AREAS, TYPES OF SOIL AMENDMENTS, OR SOIL REPLACEMENT, SEE "SOIL IMPROVEMENT DETAILS." NOTES: MARK THE NORTH SIDE OF THE TREE IN THE NURSERY, AND ROTATE TREE TO FACE NORTH AT THE SITE WHEN EVER POSSIBLE. SET TOP OF ROOT BALL FLUSH TO GRADE OR 25MM-50MM (1"-2") HIGHER IN SLOWLY DRAINING SOILS. MULCH RING, 1800MM (6') DIA. MIN. 2400MM (8') DIA. PREFERRED 50MM (2") MULCH. DO NOT PLACE MULCH IN CONTACT WITH TREE TRUNK. MAINTAIN THE MULCH WEED-FREE FOR A MIN. OF THREE YEARS AFTER PLANTING. EACH TREE MUST BE PLANTED SUCH THAT THE TRUNK FLARE IS VISIBLE AT THE TOP OF THE ROOT BALL. TREES WHERE THE TRUNK FLARE IS NOT VISIBLE SHALL BE REJECTED. DON'T COVER THE TOP OF THE ROOT BALL WITH SOIL. 100MM (4") HIGH EARTH SAUCER BEYOND EDGE OF ROOT BALL. REMOVE ALL TWINE, ROPE, WIRE AND BURLAP FROM TOP HALF OF ROOT BALL. REMOVE COMPLETELY IF SYNTHETIC IS USED. TAMP SOIL AROUND ROOT BALL BASE FIRMLY WITH FOOT PRESSURE SO THAT ROOT BALL DOESN'T SHIFT. IF PLANT IS SHIPPED WITH A WIRE BASKET AROUND ROOT BALL, CUT THE WIRE BASKET IN FOUR PLACES AND FOLD DOWN 200MM (8") INTO PLANTING HOLE. PLACE ROOT BALL ON UNEXCAVATED OR TAMPED SOIL. 1.NO MULCH WITHIN 3" OF TREE TRUNK 2.THIS DETAIL ASSUMES THAT THE PLANTING SPACE IS LARGER THAN 2400 MM (8 FT.) SQUARE, OPEN TO THE SKY, AND NOT COVERED BY ANY PAVING OR GRATING. TREES WHOSE NORTH ORIENTATION IS NOT CHANGED FROM THE NURSERY DO NOT NEED TO BE WRAPPED EXCEPT TREES WITH VERY THIN BARK, SUCH AS RED MAPLE, SHOULD BE WRAPPED IF APPROVED BY THE LANDSCAPE ARCHITECT. TREE WRAP SHOULD BE INSTALLED AT TIME OF PLANTING AND BE REMOVED WHEN DIRECTED BY THE LANDSCAPE ARCHITECT, OPTION 2 APPLY THE PLASTIC SHEETING LOOSELY AROUND THE TRUNK TO LEAVE A 12MM (0.5") GAP BETWEEN THE TRUNK AND THE SHEETING. BUT NO LATER THAN 12 MONTHS AFTER PLANTING. OPTION 1 BIO-DEGRADABLE PLASTIC TAPE TWO-WALLED PLASTIC SHEETING OR TREE SHELTER MATERIAL APPLIED FROM TRUNK FLARE TO FIRST BRANCH BREATHABLE FABRIC TREE WRAP APPLIED FROM TRUNK FLARE TO FIRST BRANCH. WRAP PAPER FROM THE BOTTOM UP WITH SUFFICIENT OVERLAP TO COVER ALL BARK. BIO-DEGRADABLE PLASTIC TAPE WIRE OR CABLE SIZES SHALL BE AS FOLLOWS: TREES UP TO 65 MM (2.5 IN.) CALIPER - 14 GAUGE TREES 65 MM (2.5 IN.) TO 75 MM (3 IN.) CALIPER - 12 GAUGE TIGHTEN WIRE OR CABLE ONLY ENOUGH TO KEEP FROM SLIPPING. ALLOW FOR SOME TRUNK MOVEMENT. PLASTIC HOSE SHALL BE LONG ENOUGH TO ACCOMMODATE 35MM (1.5 IN.) OF GROWTH AND BUFFER ALL BRANCHES FROM THE WIRE. TUCK ANY LOOSE ENDS OF THE WIRE OR CABLE INTO THE WIRE WRAP SO THAT NO SHARP WIRE ENDS ARE EXPOSED. TREES NORMALLY DO NOT NEED TO BE STAKED AND STAKING CAN BE HARMFUL TO THE TREE. STAKING SHOULD BE DONE ONLY WITH THE APPROVAL OF THE LANDSCAPE ARCHITECT IF IT IS EXPECTED THAT THE TREE WILL NOT BE ABLE TO SUPPORT ITSELF. THE FOLLOWING ARE REASONS WHY TREES DO NOT REMAIN STRAIGHT. o TREES WITH POOR QUALITY ROOT BALLS OR ROOT BALLS THAT HAVE BEEN CRACKED OR DAMAGED. REJECT RATHER THAN STAKE. o TREES THAT HAVE GROWN TOO CLOSE TOGETHER IN THE NURSERY, RESULTING IN WEAK TRUNKS. REJECT RATHER THAN STAKE. o PLANTING PROCEDURES THAT DO NOT ADEQUATELY TAMP SOILS AROUND THE ROOT BALL. CORRECT THE PLANTING PROCEDURE. o ROOT BALLS PLACED ON SOFT SOIL. TAMP SOILS UNDER ROOT BALL PRIOR TO PLANTING. o ROOT BALLS WITH VERY SANDY SOIL OR VERY WET CLAY SOIL. STAKING ADVISABLE. o TREES LOCATED IN A PLACE OF EXTREMELY WINDY CONDITIONS. STAKING ADVISABLE. REMOVE ALL STAKING AS SOON AS THE TREE HAS GROWN SUFFICIENT ROOTS TO OVERCOME THE PROBLEM THAT REQUIRED THE TREE TO BE STAKED. STAKES SHALL BE REMOVED NO LATER THE END OF THE FIRST GROWING SEASON AFTER PLANTING. OUTSIDE THE EDGE OF THE ROOT BALL. ASSURE THAT THE BEARING SURFACE OF THE PROTECTIVE COVERING OF THE WIRE OR CABLE AGAINST THE TREE TRUNK IS A MINIMUM OF 12 MM (0.5 IN.). NOTE: ALL STAKES SHALL BE DRIVEN 12 0 0 M M ( 4 ' ) 13MM (0.5") DIAMETER PLASTIC HOSE GALVANIZED WIRE OR CABLE TWIST WIRE TO TIGHTEN. 2"x2"X8' HARDWOOD STAKES OR OTHER APPROVED STAKE MATERIAL. PAINT TOP 6" OF STAKES ORANGE FOR VISIBILITY. 13MM (1/2") DIAMETER PLASTIC HOSE WIRE OR CABLE SIZES SHALL BE AS FOLLOWS: TREES UP TO 65 MM (2.5 IN.) CALIPER - 14 GAUGE TREES 65 MM (2.5 IN.) TO 75 MM (3 IN.) CALIPER - 12 GAUGE TIGHTEN WIRE OR CABLE ONLY ENOUGH TO KEEP FROM SLIPPING. ALLOW FOR SOME TRUNK MOVEMENT. PLASTIC HOSE SHALL BE LONG ENOUGH TO ACCOMMODATE 35MM (1.5 IN.) OF GROWTH AND BUFFER ALL BRANCHES FROM THE WIRE. TUCK ANY LOOSE ENDS OF THE WIRE OR CABLE INTO THE WIRE WRAP SO THAT NO SHARP WIRE ENDS ARE EXPOSED. TREES NORMALLY DO NOT NEED TO BE STAKED AND STAKING CAN BE HARMFUL TO THE TREE. STAKING SHOULD BE DONE ONLY WITH THE APPROVAL OF THE LANDSCAPE ARCHITECT IF IT IS EXPECTED THAT THE TREE WILL NOT BE ABLE TO SUPPORT ITSELF. THE FOLLOWING ARE REASONS WHY TREES DO NOT REMAIN STRAIGHT. o TREES WITH POOR-QUALITY ROOT BALLS OR ROOT BALLS THAT HAVE BEEN CRACKED OR DAMAGED. REJECT RATHER THAN STAKE. o TREES THAT HAVE GROWN TOO CLOSE TOGETHER IN THE NURSERY, RESULTING IN WEAK TRUNKS. REJECT RATHER THAN STAKE. o PLANTING PROCEDURES THAT DO NOT ADEQUATELY TAMP SOILS AROUND THE ROOT BALL. CORRECT THE PLANTING PROCEDURE. o ROOT BALLS PLACED ON SOFT SOIL. TAMP SOILS UNDER ROOT BALL PRIOR TO PLANTING. o ROOT BALLS WITH VERY SANDY SOIL OR VERY WET CLAY SOIL. STAKING ADVISABLE. o TREES LOCATED IN A PLACE OF EXTREMELY WINDY CONDITIONS. STAKING ADVISABLE. REMOVE ALL STAKING AS SOON AS THE TREE HAS GROWN SUFFICIENT ROOTS TO OVERCOME THE PROBLEM THAT REQUIRED THE TREE TO BE STAKED. STAKES SHALL BE REMOVED NO LATER THE END OF THE FIRST GROWING SEASON AFTER PLANTING. THE EDGE OF THE ROOT BALL. ASSURE THAT THE BEARING SURFACE OF THE PROTECTIVE COVERING OF THE WIRE OR CABLE AGAINST THE TREE TRUNK IS A MINIMUM OF 12 MM (0.5 IN.). ALL STAKES SHALL BE DRIVEN OUTSIDE INSTALL THREE GUY WIRES PER TREE, SPACED EVENLY AROUND THE TRUNK. PLASTIC FLAGGING OR OTHER VISUAL MARKER ON EACH WIRE. OPTIONAL METAL DRIVE ANCHORS, INSTALLED PER MANUFACTURERS DIRECTIONS. 750MM (30") LONG WOOD STAKE GALVANIZED WIRE OR CABLE TWIST WIRE TO TIGHTEN. TURNBUCKLES FOR TREES OVER 150MM (6") CALIPER. LOAMY SOILS ARE DEFINED AS GRANULAR OR BLOCKY FRIABLE SOILS, A MIXTURE OF SAND, SILT AND CLAY THE SOIL MUST NOT BE SO COMPACTED AS TO IMPEDE ROOT GROWTH OR DRAINAGE. MASSIVE. THE SOIL MUST BE TESTED FOR TEXTURE, DRAINAGE CAPABILITY, PH, AND NUTRIENT VALUES PRIOR TO DETERMINING PLANT SELECTIONS AND ANY ADDITIONAL SOIL IMPROVEMENTS. THE LOAM CLASSIFICATIONS MAY PRESENT SPECIAL PLANTING PLANTING PROBLEMS NOT ANTICIPATED BY THIS DETAIL. BETWEEN 15 TO 27%: LOAM, SANDY LOAM AND SILT LOAM. NOTE THAT SOILS AT THE OUTER LIMITS OF INCLUDE THE FOLLOWING USDA TEXTURAL CLASSIFICATIONS AND HAVE A CLAY CONTENT OF LOAMY SOILS PARTICLES WITH A MINIMUM OF 1.5% BY DRY WEIGHT ORGANIC MATTER. THE SOIL STRUCTURE SHALL NOT BE PLATY OR NOTES: 2 X ROOT BALL DIAMETER NOTE: FOR DETAILED REQUIREMENTS RELATED TO THE PLANTING OF THE TREE IN THE IMPROVED SOIL, SEE "TREE PLANTING DETAIL."BACK FILL WITH EXISTING SOIL. IN SANDY LOAM SOILS, ADD 20% MAX. BY VOLUME COMPOSTED ORGANIC MATERIAL TO THE EXISTING SOIL.LOAMY SOIL TAMP SOIL AROUND ROOT BALL BASE FIRMLY WITH FOOT PRESSURE SO THAT ROOT BALL DOES NOT SHIFT. 1:1 SLOPE ON SIDES OF PLANTING HOLE. UNEXCAVATED OR COMPACTED MOUND UNDER THE ROOT BALL TO PREVENT SETTLEMENT. 1.FOR TREES PLANTED IN NON-RESTRICTED SOIL CONDITIONS. 2.THIS DETAIL ASSUMES THAT THE AREA OF LOAMY SOIL AVAILABLE TO EACH TREE IS A MINIMUM OF 45 SQ. M (500 SQ. FT) Not to Scale TREE PLANTING DETAIL2 Not to Scale TREE WRAPPING DETAIL5Not to Scale TREE STAKING DETAIL (3" CAL. OR SMALLER)4 Not to Scale TREE STAKING DETAIL (LARGER THAN 3" CAL.)3Not to Scale SOIL IMPROVEMENT DETAIL1 Not to Scale TREE PROTECTION DETAIL6 D es i g n ro f e s s i o n a l s © ···· · · · es i g n ro f e s s i o n a l s © ···· · · · KINGST SPIELMANRD MCGUIRERD 57 5937 98 71 53 45 59 69 90 67 95 84 59 37 73 37 75 492 574 491 180 583 469 542 437 454 476 509 545 529 499 112 500 104 108 596 485 511 479 486 459 116 588 510 µ1 inch = 150 feet The information on this map is from a computer database accessed using a Geographic Information System (GIS). This is not a surveyproduct. The data provided on this map are provided for informationaland planning purposes only. The Town makes no claims or guaranteesabout the accuracy or currency of the contents of this map and expresslydisclaims liability for errors and omissions in its contents. Unauthorizedattempts to modify any information shown on this map or utilize thismap for other than its intended purposes are prohibited. Each user of thismap is responsible for determining its suitability for his or her intendeduse or purpose. In no event will the Town of South Windsor be liable forany damages, including loss of data, lost profits, business interruption,loss of business information or other pecuniary loss that might arise fromthe use of this map or the information it contains. Hartford Truck EquipmentAppl #22-02P B U R N H A M S T KINGST SPIELMANRD MCGUIRERD MAIN ST JOHN FITCH BLVD/ RTE 5 5 57 5937 98 71 13 45 2719 59 90 67 60 99 44 95 1396 84 37 73 30 37 80 68 125 492 606 574 237 220150 120 613 491 250 721 180 583 469 542 229 230 212 437 215 454 476 509 277 545 529 414 599 230 261 499 119 112 246 500 104 652637 105 108 596 200 245 244 223 210 444 632 151 160 485 511 623 479 486 269 168 200 459 679 116 190 222 593 588 729 510 µ1 inch = 40 3 fe et The information on this map is from a computer database accessed using a Geographic Information System (G IS). This is not a surveyproduct. The data provided on this map are provided for informationaland planning purposes only. The Town makes no claims or guaranteesabout the accuracy or currency of the contents of this map and expresslydisclaims liability for errors and omissions in its contents. Unauthorizedattempts to modify any information shown on this map or utilize thismap for other than its intended purposes are prohibited. Each user of thismap is responsible for determining its suitability for his or her intendeduse or purpose. In no event will the Tow n of South Windsor be liable forany damages, including loss of data, lost profits, business interruption,loss of business information or other pecuniary loss that might arise fromthe use of this map or the information it contains. Appl #22-02PHartford Truck E quipm ent LLC Wetland Delineations Wetland Evaluations Soil Evaluations 1 ____________________________________________________________________ Ian Cole, LLC Professional Registered Soil Scientist / Professional Wetland Scientist PO BOX 619 Middletown, CT 06457 Itcole@gmail.com 860-514-5642 December 30, 2021 Design Professionals, Inc. Mrs. Suzanne P. Choate, P.E. Director / Senior Project Manager P.O. Box 1167 21 Jeffery Drive South Windsor, CT 06074 RE: Wetland Delineation, Hartford Truck Equipment -45 John Fitch Boulevard & 542 King Street, GIS IDs 477000-45 & 50400542, South Windsor, Connecticut. Dear Mrs. Choate: At Design Professional’s request, I completed a field survey of the above reference parcels in search of jurisdictional inland wetlands and watercourses. Delineation Methodology A wetland survey was completed in accordance with the standards of the Natural Resources Conservation Services (NRCS) National Cooperative Soil Survey and the definitions of inland wetlands and watercourses as found in the Connecticut General Statutes, Chapter 440, Sections 22a-36 through 22a-45 as amended. Wetlands, as defined by the Statute are those soil types designated as poorly drained, very poorly drained, floodplain or alluvial in accordance with the NRCS National Cooperative Soil Survey. Such areas may also include disturbed areas that have been filled, graded, or excavated and which possess an aquic (saturated) soil moisture regime. Watercourses means rivers, streams, brooks, waterways, lakes, ponds, marshes, swamps, bogs, and all other bodies of water, natural or artificial, vernal, or intermittent, public, or private, which are contained within, flow through or border upon the Town of South Windsor or any portion thereof not regulated pursuant to sections 22a-28 through 22a-35, inclusive, of the Connecticut General Statutes. Intermittent watercourses are defined permanent channel and bank and the occurrence of two or more of the following characteristics: (a) evidence of scour or deposits of recent alluvium or detritus, (b) the Wetland Delineations Wetland Evaluations Soil Evaluations 2 presence of standing or flowing water for duration longer than a particular storm incident, and (c) the presence of hydrophytic vegetation. Findings The wetland survey was completed on December 27, 2021, to examine the upper 20" of the soil profile for the presence of hydric soil conditions and if present to delineate any wetland and/or watercourse boundaries located within the survey area. The field survey was completed during blue sky conditions when the ground was clear of snow and free of frost. After examining the existing soils, hydrology, and vegetation it is my professional opinion that there are no inland wetlands or watercourses on the subject parcels. 1 3 Wetland Delineations Wetland Evaluations Soil Evaluations 3 Soil Survey The soils identified on-site are a refinement of the Natural Resources Conservation Service (NRCS) Websoil Soil Survey. The parcels have long been disturbed throughout. The soils are classified as belonging to the Udorthents which contains miscellaneous soil types that are present on the landscape in a complex pattern that is not practical or necessary to sperate. These soils are used to denote moderately well to well drained earthen material which has been so disturbed by cutting, filling, or grading, that the original soil profile can no longer be decerned and are co-associated with buildings, roads, parking lots and landscaping of developed areas. No areas of soil types designated as poorly drained, very poorly drained, alluvial or those having an aquic moisture regime were observed on the property or immediately adjacent thereof. Soil Map—State of Connecticut Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 12/22/2021 Page 1 of 3 46 3 0 2 8 0 46 3 0 3 3 0 46 3 0 3 8 0 46 3 0 4 3 0 46 3 0 4 8 0 46 3 0 5 3 0 46 3 0 5 8 0 46 3 0 6 3 0 46 3 0 6 8 0 46 3 0 2 8 0 46 3 0 3 3 0 46 3 0 3 8 0 46 3 0 4 3 0 46 3 0 4 8 0 46 3 0 5 3 0 46 3 0 5 8 0 46 3 0 6 3 0 46 3 0 6 8 0 697610 697660 697710 697760 697810 697860 697910 697610 697660 697710 697760 697810 697860 697910 41° 48' 12'' N 72 ° 3 7 ' 1 8 ' ' W 41° 48' 12'' N 72 ° 3 7 ' 3 ' ' W 41° 47' 58'' N 72 ° 3 7 ' 1 8 ' ' W 41° 47' 58'' N 72 ° 3 7 ' 3 ' ' W N Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 18N WGS84 0 100 200 400 600 Feet 0 30 60 120 180 Meters Map Scale: 1:2,210 if printed on A portrait (8.5" x 11") sheet. Soil Map may not be valid at this scale. MAP LEGEND MAP INFORMATION Area of Interest (AOI) Area of Interest (AOI) Soils Soil Map Unit Polygons Soil Map Unit Lines Soil Map Unit Points Special Point Features Blowout Borrow Pit Clay Spot Closed Depression Gravel Pit Gravelly Spot Landfill Lava Flow Marsh or swamp Mine or Quarry Miscellaneous Water Perennial Water Rock Outcrop Saline Spot Sandy Spot Severely Eroded Spot Sinkhole Slide or Slip Sodic Spot Spoil Area Stony Spot Very Stony Spot Wet Spot Other Special Line Features Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography The soil surveys that comprise your AOI were mapped at 1:12,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: State of Connecticut Survey Area Data: Version 21, Sep 7, 2021 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jul 15, 2019—Aug 29, 2019 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Soil Map—State of Connecticut Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 12/22/2021 Page 2 of 3 Map Unit Legend Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI 36A Windsor loamy sand, 0 to 3 percent slopes 0.5 3.1% 36B Windsor loamy sand, 3 to 8 percent slopes 0.1 0.7% 306 Udorthents-Urban land complex 12.7 87.6% 307 Urban land 1.1 7.6% 308 Udorthents, smoothed 0.1 1.0% Totals for Area of Interest 14.5 100.0% Soil Map—State of Connecticut Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 12/22/2021 Page 3 of 3 Wetland Delineations Wetland Evaluations Soil Evaluations 4 If you have any questions or comments, please do not hesitate to contact me at itcole@gmail.com or (860) 514-5642 Sincerely, Ian T. Cole Professional Registered Soil Scientist Professional Wetland Scientist #2006 Wetland Delineations Wetland Evaluations Soil Evaluations 5 APPENDIX A SITE PHOTOS December 27, 2021 Wetland Delineations Wetland Evaluations Soil Evaluations 6 Photo 1: Existing field – Vegetated with various upland grasses, herbs and forbs. View standing at northern property line looking south. Photo 2: Existing Wood Chip Berm Behind Outside Storage Area Wetland Delineations Wetland Evaluations Soil Evaluations 7 Photo 3: Existing Access off King Street Stormwater Management Report Hartford Truck Equipment 45 John Fitch Boulevard & 542 King Street South Windsor, Connecticut Prepared by: Design Professionals, Inc. 21 Jeffrey Drive South Windsor, CT 06074 December 22, 2021 Table of Contents Section Page Introduction 2 Pre-Development Site Conditions 2 Post-Development Site Conditions 3 Analysis of Results 3 Conclusion 3 Appendices A Pre-Development Drainage HydroCAD Report B Post-Development Drainage HydroCAD Report C NRCS Soil Map & Data D NOAA Atlas 14 Rainfall Data E Drainage Area Maps Existing Condition Drainage Area Map Proposed Condition Drainage Area Map Page 2 Introduction Hartford Truck Equipment, Inc. (current site occupant and affiliate of property owner McGuire Road Associates, LLC) is proposing site improvements to a tract of land comprised of two properties located at 45 John Fitch Boulevard & 542 King Street, South Windsor, Connecticut. The properties are referenced on the Town of South Windsor Tax Assessors map as GIS#:47700045 & 50400542 respectively. The proposed site improvements will include the construction of an eight-foot-tall berm spanning approximately 1,000+ LF along its King Street frontage. Associated site improvements will include modifications to existing site driveways, berm landscaping and stormwater management BMP’s. The total combined tract area is 11.44 acres. 3.58+ acres of this area are proposed to be disturbed during construction. For more information, please refer to the plans entitled “Hartford Truck Equipment ~ Site Plan Application - Landscape Berm ~ 45 John Fitch Boulevard & 542 King Street ~ South Windsor, CT ~ GIS#: 50400542 & 47700045” prepared by Design Professionals, Inc., and dated December 22, 2021, as amended. Pre-Development Site Conditions The existing surficial characteristics of the area to be improved can be primarily classified as undisturbed meadow area with some grass and woodland areas around the site boundary. Review of offsite topology indicated that the site currently accepts runoff from some of its southerly property abutters today. A ridgeline spanning south-west to north-east across the site’s midsection was also identified as the main drainage divide on the property. Offsite runoff from the properties southerly abutters and the portion of the site east of the drainage divide, drain to an existing catch basin onsite where it is then conveyed to an existing Catch Basin in King Street via a 42” RCP culvert. The portion of the site to the west of the drainage divide flows overland to this same catch basin. The catchbasin in King Street was selected as the design point for our drainage analysis. This catch basin ultimately drains to The Podunk River and is a part of local basin ID 4004-00-2-R1. Existing conditions watershed delineations are identified in the Existing Conditions Drainage Map located in Appendix E. Based on Natural Resources Conservation Service (NRCS) Hydrologic Soil Group (HSG) mapping, soil types A, B, C, & D are located on site. See Appendix C for The NRCS Soil Map & Data. An evaluation was performed to quantify the peak rate of stormwater discharge offsite to the design points identified. 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. Peak rates of stormwater runoff were evaluated for the 2-, 10-, 25-, 50- and 100-year storm events. Peak rates of stormwater runoff were evaluated for the 2-, 10-, 25-, 50- and 100-year storm events. Rainfall data from NOAA Atlas 14 Point Frequency Estimates was used to generate storm conditions. NOAA Atlas 14 rainfall data is included in Appendix D for reference. For more information, please refer to the enclosed Pre-Development Drainage HydroCAD Report located in Appendix A. Page 3 Post-Development Site Conditions The proposed site improvements will include the construction of an eight-foot-tall berm spanning approximately 1,100+ LF along its King Street frontage. Associated site improvements will include modifications to existing site driveways, berm landscaping and stormwater management BMP’s. No new impervious surface area is proposed with this plan. The plan achieved a net reduction in impervious surface due to the proposed removal of existing driveways onsite. The design intent of the stormwater management system was to ensure that the berm would not act as a dam, preventing stormwater from reaching the catch basin in King Street where the site drains today. An infiltration basin is proposed along the toe of the berm to accomplish this. The web soil survey indicated that B type soils cover most of the area on site. The survey reported that the hydraulic conductivity of these B type can range from 0 – 1.98 in/hr. The infiltration basin design considered an average infiltration rate of 1.0 in/hr based on this. The soil survey also indicated that the water table onsite can range from 54” – 72”. The design of the infiltration basin assumed an average depth of 60” to the water table. The CT 2004 Stormwater Quality Manual recommends that infiltration basins be designed with a minimum separation distance of 36” to the high-water elevation. The basin design took credit for infiltration where the final cut would be no more than 24” below the existing grade to comply with this recommendation. See Appendix B for the Post Development Condition and Pond summary HydroCAD reports. The Proposed Conditions Drainage Map for the site can be found in Appendix E. Analysis of Results The pre-development and post-development conditions were analyzed using HydroCAD consistent with National Resource Conservation Service (NRCS) hydrology methods. One discharge location (Design Point #1) was identified as a point of interest for assessing downstream effects. The following table contains the data generated from the HydroCAD software: Reach 2 year 10 year 25 year 50 year 100 year DP#1 – Existing CB in King Street Pre 3.36 11.11 17.09 21.71 27.16 Post 3.15 9.14 13.51 16.85 20.75 As seen in the table above, storm events evaluated for 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 2-, 10-, 25- , 50- and 100-year design storms. 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 and should not pose any detrimental impacts to the environment. APPENDIX A Watershed Computations (Pre-Development Drainage HydroCAD Report) E1 E1 E2 E2 DP1 DP1 (Existing Condition) Routing Diagram for 2482.H - HydroCAD Prepared by Design Professionals, Inc. , Printed 12/21/2021 HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Subcat Reach Pond Link Existing Conditions Type III 24-hr 2-yr 24 hr Rainfall=3.08"2482.H - HydroCAD Printed 12/21/2021Prepared by Design Professionals, Inc. Page 2HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Time span=0.00-36.00 hrs, dt=0.04 hrs, 901 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=241,775 sf 8.69% Impervious Runoff Depth=0.33"Subcatchment E1: E1 Flow Length=735' Tc=32.2 min CN=59 Runoff=0.68 cfs 0.153 af Runoff Area=395,349 sf 28.72% Impervious Runoff Depth=0.71"Subcatchment E2: E2 Flow Length=936' Tc=53.4 min CN=69 Runoff=2.74 cfs 0.539 af Inflow=3.36 cfs 0.692 afLink DP1: DP1 (Existing Condition) Primary=3.36 cfs 0.692 af Total Runoff Area = 14.626 ac Runoff Volume = 0.692 af Average Runoff Depth = 0.57" 78.88% Pervious = 11.537 ac 21.12% Impervious = 3.089 ac Existing Conditions Type III 24-hr 10-yr 24 hr Rainfall=4.88"2482.H - HydroCAD Printed 12/21/2021Prepared by Design Professionals, Inc. Page 3HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Time span=0.00-36.00 hrs, dt=0.04 hrs, 901 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=241,775 sf 8.69% Impervious Runoff Depth=1.17"Subcatchment E1: E1 Flow Length=735' Tc=32.2 min CN=59 Runoff=3.63 cfs 0.540 af Runoff Area=395,349 sf 28.72% Impervious Runoff Depth=1.87"Subcatchment E2: E2 Flow Length=936' Tc=53.4 min CN=69 Runoff=8.13 cfs 1.415 af Inflow=11.11 cfs 1.955 afLink DP1: DP1 (Existing Condition) Primary=11.11 cfs 1.955 af Total Runoff Area = 14.626 ac Runoff Volume = 1.955 af Average Runoff Depth = 1.60" 78.88% Pervious = 11.537 ac 21.12% Impervious = 3.089 ac Existing Conditions Type III 24-hr 25-yr 24 hr Rainfall=6.01"2482.H - HydroCAD Printed 12/21/2021Prepared by Design Professionals, Inc. Page 4HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Time span=0.00-36.00 hrs, dt=0.04 hrs, 901 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=241,775 sf 8.69% Impervious Runoff Depth=1.85"Subcatchment E1: E1 Flow Length=735' Tc=32.2 min CN=59 Runoff=6.13 cfs 0.853 af Runoff Area=395,349 sf 28.72% Impervious Runoff Depth=2.72"Subcatchment E2: E2 Flow Length=936' Tc=53.4 min CN=69 Runoff=12.06 cfs 2.057 af Inflow=17.09 cfs 2.911 afLink DP1: DP1 (Existing Condition) Primary=17.09 cfs 2.911 af Total Runoff Area = 14.626 ac Runoff Volume = 2.911 af Average Runoff Depth = 2.39" 78.88% Pervious = 11.537 ac 21.12% Impervious = 3.089 ac Existing Conditions Type III 24-hr 50-yr 24 hr Rainfall=6.83"2482.H - HydroCAD Printed 12/21/2021Prepared by Design Professionals, Inc. Page 5HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Time span=0.00-36.00 hrs, dt=0.04 hrs, 901 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=241,775 sf 8.69% Impervious Runoff Depth=2.39"Subcatchment E1: E1 Flow Length=735' Tc=32.2 min CN=59 Runoff=8.14 cfs 1.105 af Runoff Area=395,349 sf 28.72% Impervious Runoff Depth=3.38"Subcatchment E2: E2 Flow Length=936' Tc=53.4 min CN=69 Runoff=15.06 cfs 2.553 af Inflow=21.73 cfs 3.658 afLink DP1: DP1 (Existing Condition) Primary=21.73 cfs 3.658 af Total Runoff Area = 14.626 ac Runoff Volume = 3.658 af Average Runoff Depth = 3.00" 78.88% Pervious = 11.537 ac 21.12% Impervious = 3.089 ac Existing Conditions Type III 24-hr 100-yr 24 hr Rainfall=7.75"2482.H - HydroCAD Printed 12/21/2021Prepared by Design Professionals, Inc. Page 6HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Time span=0.00-36.00 hrs, dt=0.04 hrs, 901 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=241,775 sf 8.69% Impervious Runoff Depth=3.04"Subcatchment E1: E1 Flow Length=735' Tc=32.2 min CN=59 Runoff=10.54 cfs 1.406 af Runoff Area=395,349 sf 28.72% Impervious Runoff Depth=4.14"Subcatchment E2: E2 Flow Length=936' Tc=53.4 min CN=69 Runoff=18.53 cfs 3.130 af Inflow=27.16 cfs 4.535 afLink DP1: DP1 (Existing Condition) Primary=27.16 cfs 4.535 af Total Runoff Area = 14.626 ac Runoff Volume = 4.535 af Average Runoff Depth = 3.72" 78.88% Pervious = 11.537 ac 21.12% Impervious = 3.089 ac Existing Conditions Type III 24-hr 2-yr 24 hr Rainfall=3.08"2482.H - HydroCAD Printed 12/21/2021Prepared by Design Professionals, Inc. Page 7HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Summary for Subcatchment E1: E1 Runoff = 0.68 cfs @ 12.65 hrs, Volume= 0.153 af, Depth= 0.33" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.04 hrs Type III 24-hr 2-yr 24 hr Rainfall=3.08" Area (sf) CN Description 19,452 39 >75% Grass cover, Good, HSG A 5,573 61 >75% Grass cover, Good, HSG B * 21,019 98 IMPERVIOUS 1,467 30 Meadow, non-grazed, HSG A 170,002 58 Meadow, non-grazed, HSG B 29 71 Meadow, non-grazed, HSG C 2,314 78 Meadow, non-grazed, HSG D 4,974 30 Woods, Good, HSG A 14,843 55 Woods, Good, HSG B 1,962 70 Woods, Good, HSG C 140 77 Woods, Good, HSG D 241,775 59 Weighted Average 220,756 91.31% Pervious Area 21,019 8.69% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.9 100 0.0520 0.11 Sheet Flow, Woods SF Woods: Light underbrush n= 0.400 P2= 3.08" 17.3 635 0.0150 0.61 Shallow Concentrated Flow, Woodland SCF Woodland Kv= 5.0 fps 32.2 735 Total Existing Conditions Type III 24-hr 2-yr 24 hr Rainfall=3.08"2482.H - HydroCAD Printed 12/21/2021Prepared by Design Professionals, Inc. Page 8HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Subcatchment E1: E1 Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Type III 24-hr 2-yr 24 hr Rainfall=3.08" Runoff Area=241,775 sf Runoff Volume=0.153 af Runoff Depth=0.33" Flow Length=735' Tc=32.2 min CN=59 0.68 cfs Existing Conditions Type III 24-hr 2-yr 24 hr Rainfall=3.08"2482.H - HydroCAD Printed 12/21/2021Prepared by Design Professionals, Inc. Page 9HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Summary for Subcatchment E2: E2 Runoff = 2.74 cfs @ 12.83 hrs, Volume= 0.539 af, Depth= 0.71" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.04 hrs Type III 24-hr 2-yr 24 hr Rainfall=3.08" Area (sf) CN Description 44,072 61 >75% Grass cover, Good, HSG B * 113,537 98 IMPERVIOUS 165,668 58 Meadow, non-grazed, HSG B 72,072 55 Woods, Good, HSG B 395,349 69 Weighted Average 281,812 71.28% Pervious Area 113,537 28.72% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 31.6 100 0.0080 0.05 Sheet Flow, Woods SF Woods: Light underbrush n= 0.400 P2= 3.08" 21.1 491 0.0060 0.39 Shallow Concentrated Flow, Woodland SCF Woodland Kv= 5.0 fps 0.7 345 0.0050 8.01 77.07 Pipe Channel, 42IN RCP 42.0" Round Area= 9.6 sf Perim= 11.0' r= 0.88' n= 0.012 Concrete pipe, finished 53.4 936 Total Existing Conditions Type III 24-hr 2-yr 24 hr Rainfall=3.08"2482.H - HydroCAD Printed 12/21/2021Prepared by Design Professionals, Inc. Page 10HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Subcatchment E2: E2 Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 3 2 1 0 Type III 24-hr 2-yr 24 hr Rainfall=3.08" Runoff Area=395,349 sf Runoff Volume=0.539 af Runoff Depth=0.71" Flow Length=936' Tc=53.4 min CN=69 2.74 cfs Existing Conditions Type III 24-hr 2-yr 24 hr Rainfall=3.08"2482.H - HydroCAD Printed 12/21/2021Prepared by Design Professionals, Inc. Page 11HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Summary for Link DP1: DP1 (Existing Condition) Inflow Area = 14.626 ac, 21.12% Impervious, Inflow Depth = 0.57" for 2-yr 24 hr event Inflow = 3.36 cfs @ 12.78 hrs, Volume= 0.692 af Primary = 3.36 cfs @ 12.78 hrs, Volume= 0.692 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-36.00 hrs, dt= 0.04 hrs Link DP1: DP1 (Existing Condition) Inflow Primary Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 3 2 1 0 Inflow Area=14.626 ac 3.36 cfs 3.36 cfs Existing Conditions Type III 24-hr 10-yr 24 hr Rainfall=4.88"2482.H - HydroCAD Printed 12/21/2021Prepared by Design Professionals, Inc. Page 12HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Subcatchment E1: E1 Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 4 3 2 1 0 Type III 24-hr 10-yr 24 hr Rainfall=4.88" Runoff Area=241,775 sf Runoff Volume=0.540 af Runoff Depth=1.17" Flow Length=735' Tc=32.2 min CN=59 3.63 cfs Subcatchment E2: E2 Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 9 8 7 6 5 4 3 2 1 0 Type III 24-hr 10-yr 24 hr Rainfall=4.88" Runoff Area=395,349 sf Runoff Volume=1.415 af Runoff Depth=1.87" Flow Length=936' Tc=53.4 min CN=69 8.13 cfs Existing Conditions Type III 24-hr 10-yr 24 hr Rainfall=4.88"2482.H - HydroCAD Printed 12/21/2021Prepared by Design Professionals, Inc. Page 13HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Link DP1: DP1 (Existing Condition) Inflow Primary Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=14.626 ac 11.11 cfs 11.11 cfs Existing Conditions Type III 24-hr 25-yr 24 hr Rainfall=6.01"2482.H - HydroCAD Printed 12/21/2021Prepared by Design Professionals, Inc. Page 14HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Subcatchment E1: E1 Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 6 5 4 3 2 1 0 Type III 24-hr 25-yr 24 hr Rainfall=6.01" Runoff Area=241,775 sf Runoff Volume=0.853 af Runoff Depth=1.85" Flow Length=735' Tc=32.2 min CN=59 6.13 cfs Subcatchment E2: E2 Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type III 24-hr 25-yr 24 hr Rainfall=6.01" Runoff Area=395,349 sf Runoff Volume=2.057 af Runoff Depth=2.72" Flow Length=936' Tc=53.4 min CN=69 12.06 cfs Existing Conditions Type III 24-hr 25-yr 24 hr Rainfall=6.01"2482.H - HydroCAD Printed 12/21/2021Prepared by Design Professionals, Inc. Page 15HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Link DP1: DP1 (Existing Condition) Inflow Primary Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=14.626 ac 17.09 cfs 17.09 cfs Existing Conditions Type III 24-hr 50-yr 24 hr Rainfall=6.83"2482.H - HydroCAD Printed 12/21/2021Prepared by Design Professionals, Inc. Page 16HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Subcatchment E1: E1 Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 9 8 7 6 5 4 3 2 1 0 Type III 24-hr 50-yr 24 hr Rainfall=6.83" Runoff Area=241,775 sf Runoff Volume=1.105 af Runoff Depth=2.39" Flow Length=735' Tc=32.2 min CN=59 8.14 cfs Subcatchment E2: E2 Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type III 24-hr 50-yr 24 hr Rainfall=6.83" Runoff Area=395,349 sf Runoff Volume=2.553 af Runoff Depth=3.38" Flow Length=936' Tc=53.4 min CN=69 15.06 cfs Existing Conditions Type III 24-hr 50-yr 24 hr Rainfall=6.83"2482.H - HydroCAD Printed 12/21/2021Prepared by Design Professionals, Inc. Page 17HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Link DP1: DP1 (Existing Condition) Inflow Primary Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=14.626 ac 21.73 cfs 21.73 cfs Existing Conditions Type III 24-hr 100-yr 24 hr Rainfall=7.75"2482.H - HydroCAD Printed 12/21/2021Prepared by Design Professionals, Inc. Page 18HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Subcatchment E1: E1 Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 11 10 9 8 7 6 5 4 3 2 1 0 Type III 24-hr 100-yr 24 hr Rainfall=7.75" Runoff Area=241,775 sf Runoff Volume=1.406 af Runoff Depth=3.04" Flow Length=735' Tc=32.2 min CN=59 10.54 cfs Subcatchment E2: E2 Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type III 24-hr 100-yr 24 hr Rainfall=7.75" Runoff Area=395,349 sf Runoff Volume=3.130 af Runoff Depth=4.14" Flow Length=936' Tc=53.4 min CN=69 18.53 cfs Existing Conditions Type III 24-hr 100-yr 24 hr Rainfall=7.75"2482.H - HydroCAD Printed 12/21/2021Prepared by Design Professionals, Inc. Page 19HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Link DP1: DP1 (Existing Condition) Inflow Primary Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Inflow Area=14.626 ac 27.16 cfs 27.16 cfs APPENDIX B Watershed Computations (Post-Development Drainage HydroCAD Report) P1 P1 P2 P2 P3 P3 PP1 Infiltration Basin DP1* DP1* (Proposed Condition) Routing Diagram for 2482.H - HydroCAD Prepared by Design Professionals, Inc. , Printed 12/22/2021 HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Subcat Reach Pond Link Proposed Conditions Type III 24-hr 2-yr 24 hr Rainfall=3.08"2482.H - HydroCAD Printed 12/22/2021Prepared by Design Professionals, Inc. Page 2HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Time span=0.00-36.00 hrs, dt=0.04 hrs, 901 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=385,899 sf 29.42% Impervious Runoff Depth=0.76"Subcatchment P1: P1 Tc=53.4 min CN=70 Runoff=2.91 cfs 0.560 af Runoff Area=98,403 sf 21.16% Impervious Runoff Depth=0.43"Subcatchment P2: P2 Flow Length=642' Tc=17.2 min CN=62 Runoff=0.53 cfs 0.081 af Runoff Area=152,822 sf 0.12% Impervious Runoff Depth=0.36"Subcatchment P3: P3 Flow Length=95' Slope=0.0890 '/' Tc=7.7 min CN=60 Runoff=0.73 cfs 0.106 af Peak Elev=46.91' Storage=1,777 cf Inflow=0.73 cfs 0.106 afPond PP1: Infiltration Basin Outflow=0.10 cfs 0.106 af Inflow=3.15 cfs 0.642 afLink DP1*: DP1* (Proposed Condition) Primary=3.15 cfs 0.642 af Proposed Conditions Type III 24-hr 10-yr 24 hr Rainfall=4.88"2482.H - HydroCAD Printed 12/22/2021Prepared by Design Professionals, Inc. Page 3HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Time span=0.00-36.00 hrs, dt=0.04 hrs, 901 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=385,899 sf 29.42% Impervious Runoff Depth=1.95"Subcatchment P1: P1 Tc=53.4 min CN=70 Runoff=8.31 cfs 1.438 af Runoff Area=98,403 sf 21.16% Impervious Runoff Depth=1.36"Subcatchment P2: P2 Flow Length=642' Tc=17.2 min CN=62 Runoff=2.34 cfs 0.257 af Runoff Area=152,822 sf 0.12% Impervious Runoff Depth=1.23"Subcatchment P3: P3 Flow Length=95' Slope=0.0890 '/' Tc=7.7 min CN=60 Runoff=4.20 cfs 0.360 af Peak Elev=47.73' Storage=10,700 cf Inflow=4.20 cfs 0.360 afPond PP1: Infiltration Basin Outflow=0.12 cfs 0.235 af Inflow=9.14 cfs 1.695 afLink DP1*: DP1* (Proposed Condition) Primary=9.14 cfs 1.695 af Proposed Conditions Type III 24-hr 25-yr 24 hr Rainfall=6.01"2482.H - HydroCAD Printed 12/22/2021Prepared by Design Professionals, Inc. Page 4HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Time span=0.00-36.00 hrs, dt=0.04 hrs, 901 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=385,899 sf 29.42% Impervious Runoff Depth=2.81"Subcatchment P1: P1 Tc=53.4 min CN=70 Runoff=12.21 cfs 2.077 af Runoff Area=98,403 sf 21.16% Impervious Runoff Depth=2.10"Subcatchment P2: P2 Flow Length=642' Tc=17.2 min CN=62 Runoff=3.79 cfs 0.395 af Runoff Area=152,822 sf 0.12% Impervious Runoff Depth=1.93"Subcatchment P3: P3 Flow Length=95' Slope=0.0890 '/' Tc=7.7 min CN=60 Runoff=7.00 cfs 0.564 af Peak Elev=48.13' Storage=19,262 cf Inflow=7.00 cfs 0.564 afPond PP1: Infiltration Basin Outflow=0.12 cfs 0.238 af Inflow=13.51 cfs 2.472 afLink DP1*: DP1* (Proposed Condition) Primary=13.51 cfs 2.472 af Proposed Conditions Type III 24-hr 50-yr 24 hr Rainfall=6.83"2482.H - HydroCAD Printed 12/22/2021Prepared by Design Professionals, Inc. Page 5HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Time span=0.00-36.00 hrs, dt=0.04 hrs, 901 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=385,899 sf 29.42% Impervious Runoff Depth=3.48"Subcatchment P1: P1 Tc=53.4 min CN=70 Runoff=15.17 cfs 2.567 af Runoff Area=98,403 sf 21.16% Impervious Runoff Depth=2.68"Subcatchment P2: P2 Flow Length=642' Tc=17.2 min CN=62 Runoff=4.93 cfs 0.504 af Runoff Area=152,822 sf 0.12% Impervious Runoff Depth=2.48"Subcatchment P3: P3 Flow Length=95' Slope=0.0890 '/' Tc=7.7 min CN=60 Runoff=9.23 cfs 0.726 af Peak Elev=48.42' Storage=26,233 cf Inflow=9.23 cfs 0.726 afPond PP1: Infiltration Basin Outflow=0.12 cfs 0.240 af Inflow=16.85 cfs 3.071 afLink DP1*: DP1* (Proposed Condition) Primary=16.85 cfs 3.071 af Proposed Conditions Type III 24-hr 100-yr 24 hr Rainfall=7.75"2482.H - HydroCAD Printed 12/22/2021Prepared by Design Professionals, Inc. Page 6HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Time span=0.00-36.00 hrs, dt=0.04 hrs, 901 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=385,899 sf 29.42% Impervious Runoff Depth=4.25"Subcatchment P1: P1 Tc=53.4 min CN=70 Runoff=18.59 cfs 3.138 af Runoff Area=98,403 sf 21.16% Impervious Runoff Depth=3.36"Subcatchment P2: P2 Flow Length=642' Tc=17.2 min CN=62 Runoff=6.28 cfs 0.633 af Runoff Area=152,822 sf 0.12% Impervious Runoff Depth=3.15"Subcatchment P3: P3 Flow Length=95' Slope=0.0890 '/' Tc=7.7 min CN=60 Runoff=11.86 cfs 0.920 af Peak Elev=48.74' Storage=34,541 cf Inflow=11.86 cfs 0.920 afPond PP1: Infiltration Basin Outflow=0.12 cfs 0.243 af Inflow=20.75 cfs 3.771 afLink DP1*: DP1* (Proposed Condition) Primary=20.75 cfs 3.771 af Proposed Conditions Type III 24-hr 2-yr 24 hr Rainfall=3.08"2482.H - HydroCAD Printed 12/22/2021Prepared by Design Professionals, Inc. Page 7HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Summary for Subcatchment P1: P1 Runoff = 2.91 cfs @ 12.81 hrs, Volume= 0.560 af, Depth= 0.76" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.04 hrs Type III 24-hr 2-yr 24 hr Rainfall=3.08" Area (sf) CN Description 61,206 61 >75% Grass cover, Good, HSG B * 113,537 98 IMPERVIOUS 142,290 58 Meadow, non-grazed, HSG B 68,866 55 Woods, Good, HSG B 385,899 70 Weighted Average 272,362 70.58% Pervious Area 113,537 29.42% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 53.4 Direct Entry, Subcatchment P1: P1 Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 3 2 1 0 Type III 24-hr 2-yr 24 hr Rainfall=3.08" Runoff Area=385,899 sf Runoff Volume=0.560 af Runoff Depth=0.76" Tc=53.4 min CN=70 2.91 cfs Proposed Conditions Type III 24-hr 2-yr 24 hr Rainfall=3.08"2482.H - HydroCAD Printed 12/22/2021Prepared by Design Professionals, Inc. Page 8HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Summary for Subcatchment P2: P2 Runoff = 0.53 cfs @ 12.34 hrs, Volume= 0.081 af, Depth= 0.43" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.04 hrs Type III 24-hr 2-yr 24 hr Rainfall=3.08" Area (sf) CN Description 22,384 39 >75% Grass cover, Good, HSG A 38,253 61 >75% Grass cover, Good, HSG B 93 74 >75% Grass cover, Good, HSG C * 20,820 98 IMPERVIOUS 269 30 Meadow, non-grazed, HSG A 3,412 58 Meadow, non-grazed, HSG B 29 71 Meadow, non-grazed, HSG C 3,240 30 Woods, Good, HSG A 8,034 55 Woods, Good, HSG B 1,869 70 Woods, Good, HSG C 98,403 62 Weighted Average 77,583 78.84% Pervious Area 20,820 21.16% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 12.9 100 0.0271 0.13 Sheet Flow, Grass SF Grass: Dense n= 0.240 P2= 3.08" 4.3 542 0.0200 2.12 Shallow Concentrated Flow, Woodland SCF Grassed Waterway Kv= 15.0 fps 17.2 642 Total Proposed Conditions Type III 24-hr 2-yr 24 hr Rainfall=3.08"2482.H - HydroCAD Printed 12/22/2021Prepared by Design Professionals, Inc. Page 9HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Subcatchment P2: P2 Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Type III 24-hr 2-yr 24 hr Rainfall=3.08" Runoff Area=98,403 sf Runoff Volume=0.081 af Runoff Depth=0.43" Flow Length=642' Tc=17.2 min CN=62 0.53 cfs Proposed Conditions Type III 24-hr 2-yr 24 hr Rainfall=3.08"2482.H - HydroCAD Printed 12/22/2021Prepared by Design Professionals, Inc. Page 10HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Summary for Subcatchment P3: P3 Runoff = 0.73 cfs @ 12.17 hrs, Volume= 0.106 af, Depth= 0.36" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-36.00 hrs, dt= 0.04 hrs Type III 24-hr 2-yr 24 hr Rainfall=3.08" Area (sf) CN Description 0 39 >75% Grass cover, Good, HSG A 69,803 61 >75% Grass cover, Good, HSG B 0 74 >75% Grass cover, Good, HSG C * 186 98 IMPERVIOUS 0 30 Meadow, non-grazed, HSG A 80,045 58 Meadow, non-grazed, HSG B 2,314 78 Meadow, non-grazed, HSG D 0 30 Woods, Good, HSG A 334 55 Woods, Good, HSG B 140 77 Woods, Good, HSG D 152,822 60 Weighted Average 152,636 99.88% Pervious Area 186 0.12% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.7 95 0.0890 0.21 Sheet Flow, Grass SF Grass: Dense n= 0.240 P2= 3.08" Proposed Conditions Type III 24-hr 2-yr 24 hr Rainfall=3.08"2482.H - HydroCAD Printed 12/22/2021Prepared by Design Professionals, Inc. Page 11HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Subcatchment P3: P3 Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Type III 24-hr 2-yr 24 hr Rainfall=3.08" Runoff Area=152,822 sf Runoff Volume=0.106 af Runoff Depth=0.36" Flow Length=95' Slope=0.0890 '/' Tc=7.7 min CN=60 0.73 cfs Proposed Conditions Type III 24-hr 2-yr 24 hr Rainfall=3.08"2482.H - HydroCAD Printed 12/22/2021Prepared by Design Professionals, Inc. Page 12HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Summary for Pond PP1: Infiltration Basin Inflow Area = 3.508 ac, 0.12% Impervious, Inflow Depth = 0.36" for 2-yr 24 hr event Inflow = 0.73 cfs @ 12.17 hrs, Volume= 0.106 af Outflow = 0.10 cfs @ 15.73 hrs, Volume= 0.106 af, Atten= 86%, Lag= 213.4 min Discarded = 0.10 cfs @ 15.73 hrs, Volume= 0.106 af Routing by Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.04 hrs Peak Elev= 46.91' @ 15.73 hrs Surf.Area= 4,448 sf Storage= 1,777 cf Plug-Flow detention time= 245.6 min calculated for 0.106 af (100% of inflow) Center-of-Mass det. time= 245.9 min ( 1,173.3 - 927.5 ) Volume Invert Avail.Storage Storage Description #1 46.00' 2,189 cf Custom Stage Data (Conic) Listed below (Recalc) #2 47.00' 77,493 cf Custom Stage Data (Prismatic) Listed below (Recalc) -Impervious 79,682 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (cubic-feet) (cubic-feet) (sq-ft) 46.00 277 0 0 277 47.00 5,101 2,189 2,189 5,104 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 47.00 5,101 0 0 48.00 22,964 14,033 14,033 49.00 27,625 25,295 39,327 50.00 48,707 38,166 77,493 Device Routing Invert Outlet Devices #1 Discarded 46.00'1.000 in/hr Exfiltration over Wetted area Discarded OutFlow Max=0.10 cfs @ 15.73 hrs HW=46.91' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.10 cfs) Proposed Conditions Type III 24-hr 2-yr 24 hr Rainfall=3.08"2482.H - HydroCAD Printed 12/22/2021Prepared by Design Professionals, Inc. Page 13HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Pond PP1: Infiltration Basin Inflow Discarded Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=3.508 ac Peak Elev=46.91' Storage=1,777 cf 0.73 cfs 0.10 cfs Proposed Conditions Type III 24-hr 2-yr 24 hr Rainfall=3.08"2482.H - HydroCAD Printed 12/22/2021Prepared by Design Professionals, Inc. Page 14HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Summary for Link DP1*: DP1* (Proposed Condition) Inflow Area = 11.118 ac, 27.74% Impervious, Inflow Depth = 0.69" for 2-yr 24 hr event Inflow = 3.15 cfs @ 12.78 hrs, Volume= 0.642 af Primary = 3.15 cfs @ 12.78 hrs, Volume= 0.642 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-36.00 hrs, dt= 0.04 hrs Link DP1*: DP1* (Proposed Condition) Inflow Primary Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 3 2 1 0 Inflow Area=11.118 ac 3.15 cfs 3.15 cfs Proposed Conditions Type III 24-hr 10-yr 24 hr Rainfall=4.88"2482.H - HydroCAD Printed 12/22/2021Prepared by Design Professionals, Inc. Page 15HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Subcatchment P1: P1 Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 9 8 7 6 5 4 3 2 1 0 Type III 24-hr 10-yr 24 hr Rainfall=4.88" Runoff Area=385,899 sf Runoff Volume=1.438 af Runoff Depth=1.95" Tc=53.4 min CN=70 8.31 cfs Subcatchment P2: P2 Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 2 1 0 Type III 24-hr 10-yr 24 hr Rainfall=4.88" Runoff Area=98,403 sf Runoff Volume=0.257 af Runoff Depth=1.36" Flow Length=642' Tc=17.2 min CN=62 2.34 cfs Proposed Conditions Type III 24-hr 10-yr 24 hr Rainfall=4.88"2482.H - HydroCAD Printed 12/22/2021Prepared by Design Professionals, Inc. Page 16HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Subcatchment P3: P3 Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 4 3 2 1 0 Type III 24-hr 10-yr 24 hr Rainfall=4.88" Runoff Area=152,822 sf Runoff Volume=0.360 af Runoff Depth=1.23" Flow Length=95' Slope=0.0890 '/' Tc=7.7 min CN=60 4.20 cfs Pond PP1: Infiltration Basin Inflow Discarded Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 4 3 2 1 0 Inflow Area=3.508 ac Peak Elev=47.73' Storage=10,700 cf 4.20 cfs 0.12 cfs Proposed Conditions Type III 24-hr 10-yr 24 hr Rainfall=4.88"2482.H - HydroCAD Printed 12/22/2021Prepared by Design Professionals, Inc. Page 17HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Link DP1*: DP1* (Proposed Condition) Inflow Primary Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=11.118 ac 9.14 cfs 9.14 cfs Proposed Conditions Type III 24-hr 25-yr 24 hr Rainfall=6.01"2482.H - HydroCAD Printed 12/22/2021Prepared by Design Professionals, Inc. Page 18HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Subcatchment P1: P1 Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type III 24-hr 25-yr 24 hr Rainfall=6.01" Runoff Area=385,899 sf Runoff Volume=2.077 af Runoff Depth=2.81" Tc=53.4 min CN=70 12.21 cfs Subcatchment P2: P2 Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 4 3 2 1 0 Type III 24-hr 25-yr 24 hr Rainfall=6.01" Runoff Area=98,403 sf Runoff Volume=0.395 af Runoff Depth=2.10" Flow Length=642' Tc=17.2 min CN=62 3.79 cfs Proposed Conditions Type III 24-hr 25-yr 24 hr Rainfall=6.01"2482.H - HydroCAD Printed 12/22/2021Prepared by Design Professionals, Inc. Page 19HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Subcatchment P3: P3 Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 7 6 5 4 3 2 1 0 Type III 24-hr 25-yr 24 hr Rainfall=6.01" Runoff Area=152,822 sf Runoff Volume=0.564 af Runoff Depth=1.93" Flow Length=95' Slope=0.0890 '/' Tc=7.7 min CN=60 7.00 cfs Pond PP1: Infiltration Basin Inflow Discarded Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 7 6 5 4 3 2 1 0 Inflow Area=3.508 ac Peak Elev=48.13' Storage=19,262 cf 7.00 cfs 0.12 cfs Proposed Conditions Type III 24-hr 25-yr 24 hr Rainfall=6.01"2482.H - HydroCAD Printed 12/22/2021Prepared by Design Professionals, Inc. Page 20HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Link DP1*: DP1* (Proposed Condition) Inflow Primary Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=11.118 ac 13.51 cfs 13.51 cfs Proposed Conditions Type III 24-hr 50-yr 24 hr Rainfall=6.83"2482.H - HydroCAD Printed 12/22/2021Prepared by Design Professionals, Inc. Page 21HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Subcatchment P1: P1 Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type III 24-hr 50-yr 24 hr Rainfall=6.83" Runoff Area=385,899 sf Runoff Volume=2.567 af Runoff Depth=3.48" Tc=53.4 min CN=70 15.17 cfs Subcatchment P2: P2 Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 5 4 3 2 1 0 Type III 24-hr 50-yr 24 hr Rainfall=6.83" Runoff Area=98,403 sf Runoff Volume=0.504 af Runoff Depth=2.68" Flow Length=642' Tc=17.2 min CN=62 4.93 cfs Proposed Conditions Type III 24-hr 50-yr 24 hr Rainfall=6.83"2482.H - HydroCAD Printed 12/22/2021Prepared by Design Professionals, Inc. Page 22HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Subcatchment P3: P3 Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 10 9 8 7 6 5 4 3 2 1 0 Type III 24-hr 50-yr 24 hr Rainfall=6.83" Runoff Area=152,822 sf Runoff Volume=0.726 af Runoff Depth=2.48" Flow Length=95' Slope=0.0890 '/' Tc=7.7 min CN=60 9.23 cfs Pond PP1: Infiltration Basin Inflow Discarded Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=3.508 ac Peak Elev=48.42' Storage=26,233 cf 9.23 cfs 0.12 cfs Proposed Conditions Type III 24-hr 50-yr 24 hr Rainfall=6.83"2482.H - HydroCAD Printed 12/22/2021Prepared by Design Professionals, Inc. Page 23HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Link DP1*: DP1* (Proposed Condition) Inflow Primary Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=11.118 ac 16.85 cfs 16.85 cfs Proposed Conditions Type III 24-hr 100-yr 24 hr Rainfall=7.75"2482.H - HydroCAD Printed 12/22/2021Prepared by Design Professionals, Inc. Page 24HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Subcatchment P1: P1 Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type III 24-hr 100-yr 24 hr Rainfall=7.75" Runoff Area=385,899 sf Runoff Volume=3.138 af Runoff Depth=4.25" Tc=53.4 min CN=70 18.59 cfs Subcatchment P2: P2 Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 7 6 5 4 3 2 1 0 Type III 24-hr 100-yr 24 hr Rainfall=7.75" Runoff Area=98,403 sf Runoff Volume=0.633 af Runoff Depth=3.36" Flow Length=642' Tc=17.2 min CN=62 6.28 cfs Proposed Conditions Type III 24-hr 100-yr 24 hr Rainfall=7.75"2482.H - HydroCAD Printed 12/22/2021Prepared by Design Professionals, Inc. Page 25HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Subcatchment P3: P3 Runoff Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Type III 24-hr 100-yr 24 hr Rainfall=7.75" Runoff Area=152,822 sf Runoff Volume=0.920 af Runoff Depth=3.15" Flow Length=95' Slope=0.0890 '/' Tc=7.7 min CN=60 11.86 cfs Pond PP1: Infiltration Basin Inflow Discarded Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=3.508 ac Peak Elev=48.74' Storage=34,541 cf 11.86 cfs 0.12 cfs Proposed Conditions Type III 24-hr 100-yr 24 hr Rainfall=7.75"2482.H - HydroCAD Printed 12/22/2021Prepared by Design Professionals, Inc. Page 26HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Link DP1*: DP1* (Proposed Condition) Inflow Primary Hydrograph Time (hours) 3635343332313029282726252423222120191817161514131211109876543210 Fl o w ( c f s ) 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Inflow Area=11.118 ac 20.75 cfs 20.75 cfs Proposed Conditions Type III 24-hr 100-yr 24 hr Rainfall=7.75"2482.H - HydroCAD Printed 12/23/2021Prepared by Design Professionals, Inc. Page 27HydroCAD® 10.00-25 s/n 09320 © 2019 HydroCAD Software Solutions LLC Summary for Pond PP1: Infiltration Basin *No infiltration accounted for in Volume #2 Inflow Area = 3.508 ac, 0.12% Impervious, Inflow Depth = 3.15" for 100-yr 24 hr event Inflow = 11.86 cfs @ 12.12 hrs, Volume= 0.920 af Outflow = 0.12 cfs @ 11.80 hrs, Volume= 0.243 af, Atten= 99%, Lag= 0.0 min Discarded = 0.12 cfs @ 11.80 hrs, Volume= 0.243 af Routing by Stor-Ind method, Time Span= 0.00-36.00 hrs, dt= 0.04 hrs Peak Elev= 48.74' @ 24.09 hrs Surf.Area= 5,101 sf Storage= 34,541 cf Plug-Flow detention time= 702.3 min calculated for 0.243 af (26% of inflow) Center-of-Mass det. time= 564.7 min ( 1,414.1 - 849.4 ) Volume Invert Avail.Storage Storage Description #1 46.00' 2,189 cf Custom Stage Data (Conic) Listed below (Recalc) #2 47.00' 77,493 cf Custom Stage Data (Prismatic) Listed below (Recalc) -Impervious 79,682 cf Total Available Storage Elevation Surf.Area Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (cubic-feet) (cubic-feet) (sq-ft) 46.00 277 0 0 277 47.00 5,101 2,189 2,189 5,104 Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 47.00 5,101 0 0 48.00 22,964 14,033 14,033 49.00 27,625 25,295 39,327 50.00 48,707 38,166 77,493 Device Routing Invert Outlet Devices #1 Discarded 46.00'1.000 in/hr Exfiltration over Wetted area Discarded OutFlow Max=0.12 cfs @ 11.80 hrs HW=47.02' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.12 cfs) APPENDIX C NRCS Soil Map & Data United States Department of Agriculture A product of the National Cooperative Soil Survey, a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local participants Custom Soil Resource Report for State of ConnecticutNatural Resources Conservation Service December 21, 2021 Preface Soil surveys contain information that affects land use planning in survey areas. They highlight soil limitations that affect various land uses and provide information about the properties of the soils in the survey areas. Soil surveys are designed for many different users, including farmers, ranchers, foresters, agronomists, urban planners, community officials, engineers, developers, builders, and home buyers. Also, conservationists, teachers, students, and specialists in recreation, waste disposal, and pollution control can use the surveys to help them understand, protect, or enhance the environment. Various land use regulations of Federal, State, and local governments may impose special restrictions on land use or land treatment. Soil surveys identify soil properties that are used in making various land use or land treatment decisions. The information is intended to help the land users identify and reduce the effects of soil limitations on various land uses. The landowner or user is responsible for identifying and complying with existing laws and regulations. Although soil survey information can be used for general farm, local, and wider area planning, onsite investigation is needed to supplement this information in some cases. Examples include soil quality assessments (http://www.nrcs.usda.gov/wps/ portal/nrcs/main/soils/health/) and certain conservation and engineering applications. For more detailed information, contact your local USDA Service Center (https://offices.sc.egov.usda.gov/locator/app?agency=nrcs) or your NRCS State Soil Scientist (http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/contactus/? cid=nrcs142p2_053951). Great differences in soil properties can occur within short distances. Some soils are seasonally wet or subject to flooding. Some are too unstable to be used as a foundation for buildings or roads. Clayey or wet soils are poorly suited to use as septic tank absorption fields. A high water table makes a soil poorly suited to basements or underground installations. The National Cooperative Soil Survey is a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local agencies. The Natural Resources Conservation Service (NRCS) has leadership for the Federal part of the National Cooperative Soil Survey. Information about soils is updated periodically. Updated information is available through the NRCS Web Soil Survey, the site for official soil survey information. The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or a part of an individual's income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require 2 alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA's TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410 or call (800) 795-3272 (voice) or (202) 720-6382 (TDD). USDA is an equal opportunity provider and employer. 3 Contents Preface....................................................................................................................2 Soil Map..................................................................................................................5 Soil Map................................................................................................................6 Legend..................................................................................................................7 Map Unit Legend..................................................................................................8 Map Unit Descriptions..........................................................................................8 State of Connecticut........................................................................................10 36A—Windsor loamy sand, 0 to 3 percent slopes......................................10 36B—Windsor loamy sand, 3 to 8 percent slopes.......................................11 306—Udorthents-Urban land complex........................................................12 307—Urban land.........................................................................................14 308—Udorthents, smoothed.......................................................................15 Soil Information for All Uses...............................................................................17 Soil Properties and Qualities..............................................................................17 Soil Qualities and Features.............................................................................17 Hydrologic Soil Group.................................................................................17 References............................................................................................................22 4 Soil Map The soil map section includes the soil map for the defined area of interest, a list of soil map units on the map and extent of each map unit, and cartographic symbols displayed on the map. Also presented are various metadata about data used to produce the map, and a description of each soil map unit. 5 6 Custom Soil Resource Report Soil Map 46 3 0 0 9 0 46 3 0 1 8 0 46 3 0 2 7 0 46 3 0 3 6 0 46 3 0 4 5 0 46 3 0 5 4 0 46 3 0 6 3 0 46 3 0 7 2 0 46 3 0 0 9 0 46 3 0 1 8 0 46 3 0 2 7 0 46 3 0 3 6 0 46 3 0 4 5 0 46 3 0 5 4 0 46 3 0 6 3 0 46 3 0 7 2 0 46 3 0 8 1 0 697520 697610 697700 697790 697880 697970 697520 697610 697700 697790 697880 697970 698060 41° 48' 16'' N 72 ° 3 7 ' 2 1 ' ' W 41° 48' 16'' N 72 ° 3 6 ' 5 7 ' ' W 41° 47' 52'' N 72 ° 3 7 ' 2 1 ' ' W 41° 47' 52'' N 72 ° 3 6 ' 5 7 ' ' W N Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 18N WGS84 0 150 300 600 900 Feet 0 50 100 200 300 Meters Map Scale: 1:3,540 if printed on A portrait (8.5" x 11") sheet. Soil Map may not be valid at this scale. MAP LEGEND MAP INFORMATION Area of Interest (AOI) Area of Interest (AOI) Soils Soil Map Unit Polygons Soil Map Unit Lines Soil Map Unit Points Special Point Features Blowout Borrow Pit Clay Spot Closed Depression Gravel Pit Gravelly Spot Landfill Lava Flow Marsh or swamp Mine or Quarry Miscellaneous Water Perennial Water Rock Outcrop Saline Spot Sandy Spot Severely Eroded Spot Sinkhole Slide or Slip Sodic Spot Spoil Area Stony Spot Very Stony Spot Wet Spot Other Special Line Features Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography The soil surveys that comprise your AOI were mapped at 1:12,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: State of Connecticut Survey Area Data: Version 21, Sep 7, 2021 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jul 15, 2019—Aug 29, 2019 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Custom Soil Resource Report 7 Map Unit Legend Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI 36A Windsor loamy sand, 0 to 3 percent slopes 4.5 13.7% 36B Windsor loamy sand, 3 to 8 percent slopes 0.4 1.2% 306 Udorthents-Urban land complex 20.1 61.3% 307 Urban land 7.4 22.6% 308 Udorthents, smoothed 0.4 1.2% Totals for Area of Interest 32.8 100.0% Map Unit Descriptions The map units delineated on the detailed soil maps in a soil survey represent the 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 are identified by a special symbol on the maps. If 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 Custom Soil Resource Report 8 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. Each 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 basis of such differences, 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 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. Custom Soil Resource Report 9 State of Connecticut 36A—Windsor loamy sand, 0 to 3 percent slopes Map Unit Setting National map unit symbol: 2svkg Elevation: 0 to 990 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: Farmland of statewide importance Map Unit Composition Windsor, loamy sand, and similar soils:85 percent Minor components:15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Windsor, Loamy Sand Setting Landform:Outwash plains, outwash terraces, deltas, dunes Landform position (three-dimensional):Tread, riser Down-slope shape:Linear, convex Across-slope shape:Linear, convex Parent material:Loose sandy glaciofluvial deposits derived from granite and/or loose sandy glaciofluvial deposits derived from schist and/or loose sandy glaciofluvial deposits derived from gneiss Typical profile O - 0 to 1 inches: moderately decomposed plant material A - 1 to 3 inches: loamy sand Bw - 3 to 25 inches: loamy sand C - 25 to 65 inches: sand Properties and qualities Slope:0 to 3 percent Depth to restrictive feature:More than 80 inches Drainage class:Excessively drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat):Moderately high to very high (1.42 to 99.90 in/hr) Depth to water table:More than 80 inches Frequency of flooding:None Frequency of ponding:None Maximum salinity:Nonsaline (0.0 to 1.9 mmhos/cm) Available water supply, 0 to 60 inches: Low (about 3.6 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 2s Hydrologic Soil Group: A Ecological site: F144AY022MA - Dry Outwash Hydric soil rating: No Custom Soil Resource Report 10 Minor Components Deerfield, loamy sand Percent of map unit:10 percent Landform:Deltas, terraces, outwash plains Landform position (two-dimensional):Footslope Landform position (three-dimensional):Tread, talf Down-slope shape:Linear Across-slope shape:Linear Hydric soil rating: No Hinckley, loamy sand Percent of map unit:5 percent Landform:Deltas, kames, eskers, outwash plains Landform position (two-dimensional):Summit, shoulder, backslope Landform position (three-dimensional):Head slope, nose slope, side slope, crest, rise Down-slope shape:Convex Across-slope shape:Convex, linear Hydric soil rating: No 36B—Windsor loamy sand, 3 to 8 percent slopes Map Unit Setting National map unit symbol: 2svkf Elevation: 0 to 1,210 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: Farmland of statewide importance Map Unit Composition Windsor, loamy sand, and similar soils:85 percent Minor components:15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Windsor, Loamy Sand Setting Landform:Dunes, outwash plains, deltas, outwash terraces Landform position (three-dimensional):Tread, riser Down-slope shape:Convex, linear Across-slope shape:Convex, linear Parent material:Loose sandy glaciofluvial deposits derived from granite and/or loose sandy glaciofluvial deposits derived from schist and/or loose sandy glaciofluvial deposits derived from gneiss Typical profile O - 0 to 1 inches: moderately decomposed plant material A - 1 to 3 inches: loamy sand Custom Soil Resource Report 11 Bw - 3 to 25 inches: loamy sand C - 25 to 65 inches: sand Properties and qualities Slope:3 to 8 percent Depth to restrictive feature:More than 80 inches Drainage class:Excessively drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat):Moderately high to very high (1.42 to 99.90 in/hr) Depth to water table:More than 80 inches Frequency of flooding:None Frequency of ponding:None Maximum salinity:Nonsaline (0.0 to 1.9 mmhos/cm) Available water supply, 0 to 60 inches: Low (about 4.5 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 2s Hydrologic Soil Group: A Ecological site: F144AY022MA - Dry Outwash Hydric soil rating: No Minor Components Hinckley, loamy sand Percent of map unit:10 percent Landform:Deltas, kames, eskers, outwash plains Landform position (two-dimensional):Summit, shoulder, backslope Landform position (three-dimensional):Head slope, nose slope, side slope, crest, rise Down-slope shape:Convex Across-slope shape:Convex, linear Hydric soil rating: No Deerfield, loamy sand Percent of map unit:5 percent Landform:Deltas, terraces, outwash plains Landform position (two-dimensional):Footslope Landform position (three-dimensional):Tread, talf Down-slope shape:Linear Across-slope shape:Linear Hydric soil rating: No 306—Udorthents-Urban land complex Map Unit Setting National map unit symbol: 9lmg Elevation: 0 to 2,000 feet Mean annual precipitation: 43 to 56 inches Mean annual air temperature: 45 to 55 degrees F Custom Soil Resource Report 12 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 transects 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 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 supply, 0 to 60 inches: 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 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 Custom Soil Resource Report 13 Down-slope shape:Convex Across-slope shape:Linear Hydric soil rating: No Rock outcrop Percent of map unit:2 percent Hydric soil rating: No 307—Urban land Map Unit Setting National map unit symbol: 9lmh 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 Urban land:80 percent Minor components:20 percent Estimates are based on observations, descriptions, and transects of the mapunit. 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 Udorthents, wet substratum Percent of map unit:10 percent Down-slope shape:Convex Across-slope shape:Linear Hydric soil rating: No Unnamed, undisturbed soils Percent of map unit:10 percent Hydric soil rating: No Custom Soil Resource Report 14 308—Udorthents, smoothed Map Unit Setting National map unit symbol: 9lmj 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:80 percent Minor components:20 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Udorthents Setting Down-slope shape:Convex Across-slope shape:Linear 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 35 percent Depth to restrictive feature:More than 80 inches Drainage class:Moderately 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 24 to 54 inches Frequency of flooding:None Frequency of ponding:None Available water supply, 0 to 60 inches: Moderate (about 6.8 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 4e Hydrologic Soil Group: C Hydric soil rating: No Minor Components Udorthents, wet substratum Percent of map unit:7 percent Hydric soil rating: No Custom Soil Resource Report 15 Unnamed, undisturbed soils Percent of map unit:7 percent Hydric soil rating: No Urban land Percent of map unit:5 percent Hydric soil rating: No Rock outcrop Percent of map unit:1 percent Hydric soil rating: No Custom Soil Resource Report 16 Soil Information for All Uses Soil Properties and Qualities The Soil Properties and Qualities section includes various soil properties and qualities displayed as thematic maps with a summary table for the soil map units in the selected area of interest. A single value or rating for each map unit is generated by aggregating the interpretive ratings of individual map unit components. This aggregation process is defined for each property or quality. Soil Qualities and Features Soil qualities are behavior and performance attributes that are not directly measured, but are inferred from observations of dynamic conditions and from soil properties. Example soil qualities include natural drainage, and frost action. Soil features are attributes that are not directly part of the soil. Example soil features include slope and depth to restrictive layer. These features can greatly impact the use and management of the soil. Hydrologic Soil Group Hydrologic soil groups are based on estimates of runoff potential. Soils are assigned to one of four groups according to the rate of water infiltration when the soils are not protected by vegetation, are thoroughly wet, and receive precipitation from long-duration storms. The soils in the United States are assigned to four groups (A, B, C, and D) and three dual classes (A/D, B/D, and C/D). The groups are defined as follows: Group A. Soils having a high infiltration rate (low runoff potential) when thoroughly wet. These consist mainly of deep, well drained to excessively drained sands or gravelly sands. These soils have a high rate of water transmission. Group B. Soils having a moderate infiltration rate when thoroughly wet. These consist chiefly of moderately deep or deep, moderately well drained or well drained soils that have moderately fine texture to moderately coarse texture. These soils have a moderate rate of water transmission. 17 Group C. Soils having a slow infiltration rate when thoroughly wet. These consist chiefly of soils having a layer that impedes the downward movement of water or soils of moderately fine texture or fine texture. These soils have a slow rate of water transmission. Group D. Soils having a very slow infiltration rate (high runoff potential) when thoroughly wet. These consist chiefly of clays that have a high shrink-swell potential, soils that have a high water table, soils that have a claypan or clay layer at or near the surface, and soils that are shallow over nearly impervious material. These soils have a very slow rate of water transmission. If a soil is assigned to a dual hydrologic group (A/D, B/D, or C/D), the first letter is for drained areas and the second is for undrained areas. Only the soils that in their natural condition are in group D are assigned to dual classes. Custom Soil Resource Report 18 19 Custom Soil Resource Report Map—Hydrologic Soil Group 46 3 0 0 9 0 46 3 0 1 8 0 46 3 0 2 7 0 46 3 0 3 6 0 46 3 0 4 5 0 46 3 0 5 4 0 46 3 0 6 3 0 46 3 0 7 2 0 46 3 0 0 9 0 46 3 0 1 8 0 46 3 0 2 7 0 46 3 0 3 6 0 46 3 0 4 5 0 46 3 0 5 4 0 46 3 0 6 3 0 46 3 0 7 2 0 46 3 0 8 1 0 697520 697610 697700 697790 697880 697970 697520 697610 697700 697790 697880 697970 698060 41° 48' 16'' N 72 ° 3 7 ' 2 1 ' ' W 41° 48' 16'' N 72 ° 3 6 ' 5 7 ' ' W 41° 47' 52'' N 72 ° 3 7 ' 2 1 ' ' W 41° 47' 52'' N 72 ° 3 6 ' 5 7 ' ' W N Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 18N WGS84 0 150 300 600 900 Feet 0 50 100 200 300 Meters Map Scale: 1:3,540 if printed on A portrait (8.5" x 11") sheet. Soil Map may not be valid at this scale. MAP LEGEND MAP INFORMATION Area of Interest (AOI) Area of Interest (AOI) Soils Soil Rating Polygons A A/D B B/D C C/D D Not rated or not available Soil Rating Lines A A/D B B/D C C/D D Not rated or not available Soil Rating Points A A/D B B/D C C/D D Not rated or not available Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography The soil surveys that comprise your AOI were mapped at 1:12,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: State of Connecticut Survey Area Data: Version 21, Sep 7, 2021 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jul 15, 2019—Aug 29, 2019 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Custom Soil Resource Report 20 Table—Hydrologic Soil Group Map unit symbol Map unit name Rating Acres in AOI Percent of AOI 36A Windsor loamy sand, 0 to 3 percent slopes A 4.5 13.7% 36B Windsor loamy sand, 3 to 8 percent slopes A 0.4 1.2% 306 Udorthents-Urban land complex B 20.1 61.3% 307 Urban land D 7.4 22.6% 308 Udorthents, smoothed C 0.4 1.2% Totals for Area of Interest 32.8 100.0% Rating Options—Hydrologic Soil Group Aggregation Method: Dominant Condition Component Percent Cutoff: None Specified Tie-break Rule: Higher Custom Soil Resource Report 21 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.nrcs.usda.gov/wps/portal/ nrcs/detail/national/soils/?cid=nrcs142p2_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.nrcs.usda.gov/wps/portal/nrcs/detail/national/soils/?cid=nrcs142p2_053577 Soil Survey Staff. 2010. Keys to soil taxonomy. 11th edition. U.S. Department of Agriculture, Natural Resources Conservation Service. http:// www.nrcs.usda.gov/wps/portal/nrcs/detail/national/soils/?cid=nrcs142p2_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. United States Department of Agriculture, Natural Resources Conservation Service. National forestry manual. http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/ home/?cid=nrcs142p2_053374 United States Department of Agriculture, Natural Resources Conservation Service. National range and pasture handbook. http://www.nrcs.usda.gov/wps/portal/nrcs/ detail/national/landuse/rangepasture/?cid=stelprdb1043084 22 United States Department of Agriculture, Natural Resources Conservation Service. National soil survey handbook, title 430-VI. http://www.nrcs.usda.gov/wps/portal/ nrcs/detail/soils/scientists/?cid=nrcs142p2_054242 United States Department of Agriculture, Natural Resources Conservation Service. 2006. Land resource regions and major land resource areas of the United States, the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook 296. http://www.nrcs.usda.gov/wps/portal/nrcs/detail/national/soils/? cid=nrcs142p2_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/Internet/FSE_DOCUMENTS/nrcs142p2_052290.pdf Custom Soil Resource Report 23 APPENDIX D NOAA Rainfall Data 12/15/21, 10:48 AM Precipitation Frequency Data Server https://hdsc.nws.noaa.gov/hdsc/pfds/pfds_printpage.html?lat=41.8019&lon=-72.6202&data=intensity&units=english&series=pds 1/4 NOAA Atlas 14, Volume 10, Version 3 Location name: South Windsor, Connecticut, USA* Latitude: 41.8019°, Longitude: -72.6202° Elevation: 54.7 ft** * source: ESRI Maps ** source: USGS POINT PRECIPITATION FREQUENCY ESTIMATES Sanja Perica, Sandra Pavlovic, Michael St. Laurent, Carl Trypaluk, Dale Unruh, Orlan Wilhite NOAA, National Weather Service, Silver Spring, Maryland PF_tabular | PF_graphical | Maps_&_aerials PF tabular PDS-based point precipitation frequency estimates with 90% confidence intervals (in inches/hour)1 Duration Average recurrence interval (years) 1 2 5 10 25 50 100 200 500 1000 5-min 4.01 (3.14‑5.11) 4.87 (3.82‑6.22) 6.28 (4.90‑8.03) 7.44 (5.77‑9.58) 9.04 (6.78‑12.2) 10.2 (7.54‑14.1) 11.5 (8.21‑16.5) 12.9 (8.72‑19.0) 15.0 (9.71‑22.8) 16.6 (10.5‑25.9) 10-min 2.84 (2.23‑3.62) 3.45 (2.70‑4.40) 4.44 (3.47‑5.69) 5.27 (4.09‑6.78) 6.40 (4.80‑8.63) 7.25 (5.33‑10.0) 8.15 (5.81‑11.7) 9.16 (6.17‑13.5) 10.6 (6.87‑16.2) 11.8 (7.46‑18.3) 15-min 2.23 (1.75‑2.84) 2.71 (2.12‑3.45) 3.49 (2.72‑4.46) 4.13 (3.20‑5.32) 5.02 (3.76‑6.77) 5.69 (4.18‑7.85) 6.39 (4.56‑9.17) 7.18 (4.84‑10.6) 8.31 (5.39‑12.7) 9.24 (5.85‑14.4) 30-min 1.49 (1.17‑1.90) 1.82 (1.42‑2.32) 2.34 (1.83‑3.00) 2.78 (2.16‑3.58) 3.39 (2.54‑4.57) 3.85 (2.82‑5.31) 4.32 (3.08‑6.20) 4.86 (3.28‑7.14) 5.62 (3.65‑8.57) 6.25 (3.96‑9.73) 60-min 0.936 (0.733‑1.19) 1.14 (0.893‑1.45) 1.48 (1.15‑1.89) 1.75 (1.36‑2.26) 2.13 (1.60‑2.88) 2.42 (1.78‑3.34) 2.72 (1.94‑3.91) 3.06 (2.07‑4.50) 3.55 (2.30‑5.40) 3.94 (2.49‑6.14) 2-hr 0.608 (0.479‑0.769) 0.736 (0.580‑0.932) 0.946 (0.742‑1.20) 1.12 (0.874‑1.43) 1.36 (1.03‑1.83) 1.54 (1.14‑2.12) 1.73 (1.25‑2.48) 1.96 (1.32‑2.86) 2.29 (1.49‑3.47) 2.57 (1.63‑3.98) 3-hr 0.466 (0.369‑0.588) 0.564 (0.446‑0.713) 0.725 (0.570‑0.919) 0.858 (0.671‑1.09) 1.04 (0.790‑1.40) 1.18 (0.875‑1.62) 1.32 (0.958‑1.90) 1.50 (1.02‑2.18) 1.77 (1.15‑2.67) 1.99 (1.27‑3.07) 6-hr 0.292 (0.232‑0.366) 0.355 (0.282‑0.445) 0.457 (0.362‑0.576) 0.542 (0.427‑0.687) 0.659 (0.503‑0.879) 0.745 (0.558‑1.02) 0.839 (0.612‑1.20) 0.954 (0.649‑1.38) 1.13 (0.739‑1.70) 1.29 (0.820‑1.97) 12-hr 0.176 (0.141‑0.220) 0.216 (0.173‑0.269) 0.281 (0.224‑0.352) 0.335 (0.265‑0.422) 0.409 (0.314‑0.543) 0.464 (0.349‑0.632) 0.523 (0.384‑0.746) 0.598 (0.408‑0.859) 0.713 (0.467‑1.06) 0.812 (0.520‑1.24) 24-hr 0.103 (0.083‑0.128) 0.128 (0.103‑0.159) 0.169 (0.136‑0.211) 0.203 (0.162‑0.255) 0.250 (0.194‑0.331) 0.285 (0.216‑0.387) 0.323 (0.239‑0.460) 0.371 (0.254‑0.531) 0.448 (0.295‑0.664) 0.516 (0.331‑0.779) 2-day 0.058 (0.047‑0.072) 0.074 (0.060‑0.091) 0.099 (0.080‑0.122) 0.120 (0.096‑0.149) 0.148 (0.116‑0.196) 0.169 (0.129‑0.230) 0.192 (0.144‑0.275) 0.224 (0.154‑0.318) 0.275 (0.181‑0.405) 0.321 (0.206‑0.481) 3-day 0.042 (0.034‑0.052) 0.054 (0.044‑0.066) 0.072 (0.058‑0.089) 0.087 (0.070‑0.108) 0.108 (0.085‑0.143) 0.123 (0.095‑0.167) 0.141 (0.106‑0.201) 0.164 (0.113‑0.232) 0.202 (0.133‑0.297) 0.237 (0.153‑0.354) 4-day 0.034 (0.028‑0.042) 0.043 (0.035‑0.053) 0.058 (0.047‑0.071) 0.070 (0.056‑0.086) 0.087 (0.068‑0.114) 0.099 (0.076‑0.133) 0.112 (0.085‑0.160) 0.131 (0.090‑0.185) 0.162 (0.107‑0.236) 0.189 (0.122‑0.282) 7-day 0.023 (0.019‑0.028) 0.029 (0.023‑0.035) 0.038 (0.031‑0.046) 0.046 (0.037‑0.056) 0.056 (0.044‑0.074) 0.064 (0.050‑0.086) 0.073 (0.055‑0.103) 0.085 (0.059‑0.119) 0.104 (0.069‑0.151) 0.121 (0.078‑0.179) 10-day 0.019 (0.015‑0.022) 0.023 (0.019‑0.028) 0.030 (0.024‑0.036) 0.035 (0.029‑0.043) 0.043 (0.034‑0.056) 0.049 (0.038‑0.065) 0.056 (0.042‑0.078) 0.064 (0.044‑0.089) 0.077 (0.051‑0.112) 0.089 (0.058‑0.132) 20-day 0.013 (0.011‑0.016) 0.016 (0.013‑0.019) 0.019 (0.016‑0.023) 0.022 (0.018‑0.027) 0.026 (0.021‑0.034) 0.030 (0.023‑0.039) 0.033 (0.025‑0.045) 0.037 (0.026‑0.051) 0.043 (0.029‑0.062) 0.048 (0.032‑0.071) 30-day 0.011 (0.009‑0.013) 0.013 (0.011‑0.015) 0.015 (0.013‑0.018) 0.017 (0.014‑0.021) 0.020 (0.016‑0.026) 0.022 (0.017‑0.029) 0.025 (0.018‑0.033) 0.027 (0.019‑0.037) 0.031 (0.021‑0.044) 0.034 (0.022‑0.049) 45-day 0.009 (0.008‑0.011) 0.011 (0.009‑0.013) 0.012 (0.010‑0.015) 0.014 (0.011‑0.017) 0.016 (0.012‑0.020) 0.017 (0.013‑0.022) 0.019 (0.014‑0.025) 0.020 (0.014‑0.028) 0.022 (0.015‑0.032) 0.024 (0.016‑0.035) 60-day 0.008 (0.007‑0.010) 0.009 (0.008‑0.011) 0.010 (0.009‑0.013) 0.012 (0.010‑0.014) 0.013 (0.010‑0.016) 0.014 (0.011‑0.018) 0.015 (0.011‑0.020) 0.017 (0.012‑0.023) 0.018 (0.012‑0.025) 0.019 (0.012‑0.028) 1 Precipitation frequency (PF) estimates in this table are based on frequency analysis of partial duration series (PDS). Numbers in parenthesis are PF estimates at lower and upper bounds of the 90% confidence interval. The probability that precipitation frequency estimates (for a given duration and average recurrence interval) will be greater than the upper bound (or less than the lower bound) is 5%. Estimates at upper bounds are not checked against probable maximum precipitation (PMP) estimates and may be higher than currently valid PMP values. Please refer to NOAA Atlas 14 document for more information. Back to Top PF graphical 12/15/21, 10:47 AM Precipitation Frequency Data Server https://hdsc.nws.noaa.gov/hdsc/pfds/pfds_printpage.html?lat=41.8019&lon=-72.6202&data=depth&units=english&series=pds 1/4 NOAA Atlas 14, Volume 10, Version 3 Location name: South Windsor, Connecticut, USA* Latitude: 41.8019°, Longitude: -72.6202° Elevation: 54.7 ft** * source: ESRI Maps ** source: USGS POINT PRECIPITATION FREQUENCY ESTIMATES Sanja Perica, Sandra Pavlovic, Michael St. Laurent, Carl Trypaluk, Dale Unruh, Orlan Wilhite NOAA, National Weather Service, Silver Spring, Maryland PF_tabular | PF_graphical | Maps_&_aerials PF tabular PDS-based point precipitation frequency estimates with 90% confidence intervals (in inches)1 Duration Average recurrence interval (years) 1 2 5 10 25 50 100 200 500 1000 5-min 0.334 (0.262‑0.426) 0.406 (0.318‑0.518) 0.523 (0.408‑0.669) 0.620 (0.481‑0.798) 0.753 (0.565‑1.02) 0.854 (0.628‑1.18) 0.959 (0.684‑1.38) 1.08 (0.727‑1.58) 1.25 (0.809‑1.90) 1.39 (0.877‑2.16) 10-min 0.474 (0.371‑0.604) 0.575 (0.450‑0.733) 0.740 (0.578‑0.949) 0.878 (0.681‑1.13) 1.07 (0.800‑1.44) 1.21 (0.889‑1.67) 1.36 (0.968‑1.95) 1.53 (1.03‑2.24) 1.77 (1.15‑2.69) 1.96 (1.24‑3.06) 15-min 0.557 (0.437‑0.710) 0.677 (0.530‑0.863) 0.872 (0.681‑1.12) 1.03 (0.801‑1.33) 1.25 (0.941‑1.69) 1.42 (1.05‑1.96) 1.60 (1.14‑2.29) 1.80 (1.21‑2.64) 2.08 (1.35‑3.17) 2.31 (1.46‑3.60) 30-min 0.747 (0.585‑0.951) 0.908 (0.711‑1.16) 1.17 (0.915‑1.50) 1.39 (1.08‑1.79) 1.70 (1.27‑2.29) 1.92 (1.41‑2.65) 2.16 (1.54‑3.10) 2.43 (1.64‑3.57) 2.81 (1.82‑4.29) 3.13 (1.98‑4.87) 60-min 0.936 (0.733‑1.19) 1.14 (0.893‑1.45) 1.48 (1.15‑1.89) 1.75 (1.36‑2.26) 2.13 (1.60‑2.88) 2.42 (1.78‑3.34) 2.72 (1.94‑3.91) 3.06 (2.07‑4.50) 3.55 (2.30‑5.40) 3.94 (2.49‑6.14) 2-hr 1.22 (0.958‑1.54) 1.47 (1.16‑1.87) 1.89 (1.49‑2.41) 2.24 (1.75‑2.87) 2.72 (2.06‑3.66) 3.08 (2.28‑4.24) 3.46 (2.49‑4.97) 3.91 (2.65‑5.71) 4.58 (2.98‑6.94) 5.14 (3.26‑7.96) 3-hr 1.40 (1.11‑1.77) 1.70 (1.34‑2.14) 2.18 (1.71‑2.76) 2.58 (2.02‑3.29) 3.13 (2.37‑4.19) 3.53 (2.63‑4.86) 3.97 (2.88‑5.70) 4.50 (3.05‑6.55) 5.30 (3.45‑8.01) 5.99 (3.81‑9.22) 6-hr 1.75 (1.39‑2.19) 2.12 (1.69‑2.67) 2.74 (2.17‑3.45) 3.25 (2.56‑4.11) 3.94 (3.01‑5.27) 4.46 (3.34‑6.11) 5.02 (3.66‑7.19) 5.71 (3.89‑8.27) 6.78 (4.43‑10.2) 7.69 (4.91‑11.8) 12-hr 2.12 (1.70‑2.65) 2.60 (2.08‑3.25) 3.39 (2.70‑4.24) 4.04 (3.20‑5.08) 4.93 (3.79‑6.55) 5.59 (4.21‑7.61) 6.31 (4.63‑8.99) 7.20 (4.92‑10.4) 8.59 (5.63‑12.8) 9.79 (6.26‑14.9) 24-hr 2.47 (1.99‑3.06) 3.08 (2.48‑3.81) 4.06 (3.26‑5.06) 4.88 (3.89‑6.11) 6.01 (4.65‑7.95) 6.83 (5.19‑9.29) 7.75 (5.74‑11.0) 8.91 (6.10‑12.7) 10.8 (7.07‑15.9) 12.4 (7.95‑18.7) 2-day 2.80 (2.27‑3.44) 3.53 (2.86‑4.35) 4.74 (3.82‑5.86) 5.74 (4.60‑7.14) 7.12 (5.55‑9.40) 8.11 (6.21‑11.0) 9.24 (6.93‑13.2) 10.7 (7.37‑15.3) 13.2 (8.70‑19.4) 15.4 (9.91‑23.1) 3-day 3.04 (2.48‑3.73) 3.86 (3.13‑4.73) 5.18 (4.19‑6.38) 6.28 (5.05‑7.78) 7.79 (6.10‑10.3) 8.89 (6.83‑12.0) 10.1 (7.63‑14.5) 11.8 (8.12‑16.7) 14.6 (9.61‑21.4) 17.0 (11.0‑25.5) 4-day 3.26 (2.66‑3.99) 4.12 (3.36‑5.05) 5.53 (4.49‑6.80) 6.70 (5.40‑8.28) 8.31 (6.52‑10.9) 9.47 (7.30‑12.8) 10.8 (8.15‑15.4) 12.6 (8.66‑17.8) 15.5 (10.3‑22.7) 18.2 (11.7‑27.1) 7-day 3.85 (3.16‑4.68) 4.81 (3.94‑5.86) 6.39 (5.21‑7.81) 7.69 (6.23‑9.46) 9.49 (7.47‑12.4) 10.8 (8.34‑14.5) 12.3 (9.26‑17.3) 14.2 (9.83‑20.0) 17.4 (11.5‑25.3) 20.3 (13.1‑30.0) 10-day 4.45 (3.66‑5.40) 5.47 (4.49‑6.64) 7.13 (5.83‑8.68) 8.50 (6.91‑10.4) 10.4 (8.20‑13.5) 11.8 (9.11‑15.7) 13.3 (10.0‑18.6) 15.3 (10.6‑21.4) 18.6 (12.3‑26.9) 21.4 (13.9‑31.7) 20-day 6.41 (5.30‑7.72) 7.48 (6.18‑9.02) 9.23 (7.60‑11.2) 10.7 (8.74‑13.0) 12.7 (10.0‑16.2) 14.2 (10.9‑18.6) 15.8 (11.8‑21.6) 17.7 (12.4‑24.6) 20.7 (13.8‑29.8) 23.3 (15.1‑34.1) 30-day 8.09 (6.72‑9.72) 9.19 (7.62‑11.0) 11.0 (9.08‑13.3) 12.5 (10.2‑15.1) 14.5 (11.5‑18.4) 16.1 (12.4‑20.8) 17.7 (13.2‑23.8) 19.5 (13.7‑26.9) 22.2 (14.9‑31.7) 24.4 (15.9‑35.7) 45-day 10.2 (8.52‑12.2) 11.4 (9.45‑13.6) 13.2 (11.0‑15.9) 14.8 (12.2‑17.8) 16.9 (13.4‑21.2) 18.5 (14.3‑23.7) 20.1 (14.9‑26.7) 21.8 (15.4‑30.0) 24.1 (16.2‑34.3) 25.9 (16.9‑37.7) 60-day 12.0 (10.0‑14.3) 13.2 (11.0‑15.8) 15.1 (12.6‑18.1) 16.7 (13.8‑20.1) 18.9 (15.0‑23.6) 20.6 (15.9‑26.3) 22.3 (16.5‑29.3) 23.9 (16.9‑32.7) 25.9 (17.5‑36.7) 27.3 (17.9‑39.7) 1 Precipitation frequency (PF) estimates in this table are based on frequency analysis of partial duration series (PDS). Numbers in parenthesis are PF estimates at lower and upper bounds of the 90% confidence interval. The probability that precipitation frequency estimates (for a given duration and average recurrence interval) will be greater than the upper bound (or less than the lower bound) is 5%. Estimates at upper bounds are not checked against probable maximum precipitation (PMP) estimates and may be higher than currently valid PMP values. Please refer to NOAA Atlas 14 document for more information. Back to Top PF graphical APPENDIX E Drainage Area Maps © ··· es i g n ro f e s s i o n a l s © ··· es i g n ro f e s s i o n a l s M E M O R A N D U M To: South Windsor Inland Wetland/Conservation Commission. From: Jeffrey H. Folger – Environmental Planner/Conservation Officer Date: January 28, 2022 Re: Appl. #22-02P Review of the proposed 542 King St berm proposal. Plans dated 12/22/21. The project is to seek approvals and create an earthen berm in anticipation of future commercial development in the site. The berm will be approximately 1200 feet in length, 8 feet high, with an array of evergreen trees proposed to be planted on its top. There are no wetlands on the site, so this application is an erosion certification plan. Full plans can be viewed on the Town’s website under “pending applications” under the Planning Dept. Site: The site is located in the Podunk River watershed. The site is comprised of a lot totaling 10.1 acres. The property is zoned General Commercial on the eastern side and Residential on the western side. An application is before the PZC to change the current zoning to all Commercial. No site development plan has been submitted. The site is level and has been 90% cleared from a previous agricultural use. Rain water currently infiltrates into the soil on the majority of the site. Several yard drains collect some surface runoff and direct it to the west under King St where it discharges to a gully, then to the Podunk River flood plain. A hardwood stand of trees rings the site on the south and west boundary. The understory is sparse. A one acre grassed parking area is present in the northeast portion of the site for vehicles to be repaired. Impacts: The soils listed on the site report are Windsor Loamy Sand (WuA) 0 to 3% slope, and Urban Land Complex (mixed, disturbed soil). Perimeter erosion controls will be adequate to contain sediments from construction activities on the site. Stormwater: The stormwater management consists of constructing an infiltration basin along the eastern side of the berm to contain runoff onsite. The series of yard drains will be maintained on the site as well. There is no proposed increase of impervious surface. A dust control plan is included on the plan.