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HomeMy WebLinkAbout18-18P MK Construction IWA TOWN OF SOUTH WINDSOR RECEIVED Fee $110.00 NOT P IfflimAllaw£-RIMAeT INLAND WETL NI)h 64ERI80U SES AND CONSERVATION APPLICATIONsor SO L°JEFTLA AN S INLAND DS AGENCY CONSLRVATION COMMISSION Application # Mr 8 Date Received /`�- Action and Date INSTRUCTIONS 1. One application (1) with map and plans (1 copy) shall be submitted together with the fee set forth in the Inland Wetlands, Watercourses and Conservation Regulations, Town of South Windsor. (See Regulations, Section VII -X) 2. The South Windsor Inland Wetlands, Watercourses and Conservation Regulations should be reviewed with respect to the standards and criteria for application Evaluation. (See Regulations, Sections VII -X) 3. The applicant understands that this application is to be considered complete only when all information and documents required by the Agency have been submitted. The applicant shall also complete the state filing form. A. Applicant's Name: Luke McCoy, c/o Kaestle Boos Associates, Inc. Address: 416 Slater Road, PO Box 2050, New Britain, CT 06050 Phone: (home) N/A (work) 860-229-0361 (faX) 860-229-5303 B. Legal owner's name: MSKW, LLC Address 6 Plum Lane, South Windsor, CT 06074 Phone (home) 860-614-7749 (work) SAME (fax) N/A (List additional owners, addresses, and phone numbers on back of application) C. If the applicant is not the owner of the subject property; a letter by the owner(s) authorizing the proposed regulated activity set forth in the application must accompany this form and will be part of the application. D. The geographical location of the property which is to be affected by the proposed regulated activities including a description of the land in sufficient detail to allow identification of the property on the Inland Wetland and Watercourse Map. Street Address # Lot#005, 140 Troy Road Assessor's Map # 111 Parcel # 40 Zone Industrial E. Purpose and description of all proposed regulated activity(s) including amount of disturbance in square feet and types of fill and the time element involved: Construction of+/-5,000 Square foot office building, parking area, and landscaping on 0.84 acre lot. 1 F. Identify all other permits or approvals that have been issued, applied for, or required with respect to the proposed activity set forth in this application. (These may include but not be limited to, local Planning 8v Zoning, Zoning Board of Appeals, D.E.P., F.E.M.A., D.O.T., The Army Corps of Engineers, and any other State, Local or Federal Permits.) Planning Commission, Zone Change, Approved 01/09/2018 The undersigned hereby applies for the regulated activities listed in paragraph F above, for a Minor Impact Inland Wetlands, Watercourses and Conservation permit for the property described herein and confirms that: 1. She/he is familiar with the currently effective Inland Wetlands, Watercourses and Conservation Regulations of the Town of South Windsor. 2. She/he understands that at any time during the review period, the Agency may require the applicant to provide more information about the wetlands and/or watercourses in question and/or any proposed activity. 3. All information submitted in the application for review shall be considered factual, or in the case of anticipated activity, binding. A knowing failure of the applicant or any of her/his agents to provide correct information, or performance exceeding the levels of activity anticipated, shall be sufficient grounds for revocation of any permit under these regulations. 4. By making this application, the applicant gives permission to the Inland Wetlands, Watercourses and Conservation Commission members and/or its representative to enter the portions of the premises which are subject of the application for the purpose of inspection and investigation and otherwise evaluating the merits of the application both before and after a final decision has been issued. 5. Upon approval by the authorized Agent the applicant shall cause notice of the decision to be published in a daily newspaper having a general circulation in the Town where the activity occurs. The notice must be published within ten (10) days of the decision. 6. Appeals of this decision may be brought to the Agency within fifteen (15) days after the publication date of the notice. Signature of Owner of Property / Date �3�02///� Sig ature o Applicant Date 6)i / 2 a Stormwater Report Proposed MK Construction Office Building 5 Troy Road South Windsor, CT PREPARED FOR Kaestle Boos Associates, Inc. 416 Slater Road New Britain, CT February 13, 2018 �• benesch engineers • scientists • planners TABLE OF (.'--0NTF- NT(.- Introduction .................................................................. Methodology ................................................................... Soils&Topography ............................................................ Results................................................................................ �I ATTACHMENTS Appendix A NRCS Soil Information Appendix B Soil Permeability Report Appendix C Proposed Conditions Drainage Calculations Drainage Report r Proposed MK Construction Office Building 5 Troy Road South Windsor, CT February 13, 2018 INTRODUCTION This drainage report contains calculations for the stormwater drainage gallery system at the proposed MK Construction Office Building site. There are (3) three proposed gallery system located within the proposed paved parking lot as shown on the attached "Proposed Conditions Drainage Map", DA-1. Gallery systems No. 1 and No. 3 will collect roof drainage from the proposed office building and Gallery system No. 3 will collect parking lot drainage only. Parking lot drainage is collected in catch basins that are piped to the gallery systems. The systems are designed to contain and infiltrate the 10-year design storm. Permeability testing of the existing soils was conducted by Welti Geotechnical, P.0 and the permeability rate was found to be 28 feet per day. The permeability report is in Appendix B. METHODOLOGY Hydrology Computer software: HydroCAD © 10.0 2014 Software Solutions, LLC Hydrology modeling software Hydrologic Methodology: SCS Dimentionless Unit Hydrograph Method Surface Runoff Conditions Rainfall Data: Type III—24 Hour Rainfall Distribution—Connecticut 10-Years Storm=4.7 inches Watershed Areas: Watershed areas were measured using AutoCAD software based on the areas delineated on topographic mapping shown on the drainage area map "DA-1 Proposed Conditions Drainage Map". SOILS & TOPOGRAPHY The Soil Survey Map of the proposed project site is based on available National Resource Conservation Service (MRCS) mapping. A summary of the soil types present on-site is provided below with the complete NRCS soil description data included as Appendix A. RESULTS Peak flows to the storm drainage gallery systems were calculated for the proposed conditions l0,year rainfall event. The calculated peak flows and elevations in each system are given in Table 1 below: Table 1 Analysis Point Peak Flow Bottom Top of Peak to Gallery Elev. of Stone Water (cfs) Gallery Elev. Gallery#1 0.72 92.40 95.44 95.10 Gallery#2 0.62 90.60 93.64 93.22 Gallery#3 0.64 91.00 94.00 93.86 The results shown on Table 1 indicate that the galleries are sufficiently sized to contain the runoff from the 10-year storm within the crushed stone surrounding the galleries. APPENDIX NRCS SOIL INFORMATION _USDA United States A product of the National Custom Soil Resource Department of Cooperative Soil Survey, s Agriculture a joint effort of the United Report for States Department of I V RCS Agriculture and other State of Federal agencies, State Natural agencies including the Resources Agricultural Experiment Connecticut Conservation Stations, and local Service participants Sift January 8, 2018 Custom Soil Resource Report 3 Soil Map 3 701230 701240 701250 701250 7D1270 70129D 70129D 701300 701310 701320 701330 701340 701350 701360 701370 701380 41°51'LO"N 41°51'10"N ° o_ 0 t'. b 41°51'6"N 1. 'I 41°51'6"N 701230 701240 701250 701250 701270 701280 701290 701300 701310 701320 701330 701340 701350 70136D 701370 701380 701390 s 3 Map Scale:1:752 if printed on A landscape(11"x 8.5')sheet ^° N —.-:_-_-� :_:___.__------ MetEts — _ 0 35 70 140 210 Map projection Web Mercator Gxneraxwdinates:WGS84 Edge tics:UTM Zone 18N WGS84 9 Custom Soil Resource Report MAP LEGEND MAP INFORMATION Area of Interest(AOI) Spoil Area The soil surveys that comprise your AOI were mapped at 0 Area of Interest(AOI) Stony Spot 1:12,000. Soils Very Stony Spot Li Soil Map Unit Polygons Warning:Soil Map may not be valid at this scale. Wet Spot �,.. Soil Map Unit Lines Enlargement of maps beyond the scale of mapping can cause Other misunderstanding of the detail of mapping and accuracy of soil ® Soil Map Unit Points P P Special Line Features ma line placement.The s do not show the small areas of �• Special Point Features contrasting soils that could have been shown at a more detailed U. Blowout Water Features scale. Streams and Canals Borrow Pit Transportation Please rely on the bar scale on each map sheet for map Clay Spot Rails measurements. ;ff Closed Depression Interstate Highways Source of Map: Natural Resources Conservation Service Gravel Pit US Routes Web Soil Survey URL: Gravelly Spot Major Roads Coordinate System: Web Mercator(EPSG:3857) Landfill Local Roads Maps from the Web Soil Survey are based on the Web Mercator Lava Flow projection,which preserves direction and shape but distorts Background distance and area.A projection that preserves area,such as the Marsh or swamp Aerial Photography Albers equal-area conic projection,should be used if more Mine or Quarry accurate calculations of distance or area are required. Miscellaneous Water This product is generated from the USDA-NRCS certified data as Perennial Water of the version date(s)listed below. Rock Outcrop Soil Survey Area: State of Connecticut Saline Spot Survey Area Data: Version 16,Sep 15,2017 Sandy Spot Soil map units are labeled(as space allows)for map scales Severely Eroded Spot 1:50,000 or larger. Sinkhole Date(s)aerial images were photographed: Sep 29,2013—Oct Slide or Slip 16,2016 r Sodic Spot 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. 10 Custom Soil Resource Report Map Unit Legend Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI 21A Ninigret and Tisbury soils,0 to 5 0.4 27.0% percent slopes 36A Windsor loamy sand,0 to 3 0.2 14.7% percent slopes 36B Windsor loamy sand,3 to 8 0.8 58.3% percent slopes Totals for Area of Interest 1.4 100.0% 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 pure taxonomic classes but rather to separate the landscape into landforms or 11 Custom Soil Resource Report 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. 12 Custom Soil Resource Report State of Connecticut 21A—Ninigret and Tisbury soils, 0 to 5 percent slopes Map Unit Setting National map unit symbol. 2tx07 Elevation: 0 to 1,260 feet Mean annual precipitation: 36 to 71 inches Mean annual air temperature: 39 to 55 degrees F Frost-free period: 140 to 240 days Farmland classification: All areas are prime farmland Map Unit Composition Ninigret and similar soils: 60 percent Tisbury and similar soils: 25 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Ninigret Setting Landform: Outwash plains, outwash terraces,drainageways, moraines, depressions, kames, kame terraces Landform position (two-dimensional): Backslope, shoulder, footslope, summit Landform position (three-dimensional): Side slope, crest, tread, rise, dip Down-slope shape: Convex, linear, concave Across-slope shape: Convex, concave Parent material. Coarse-loamy eolian deposits over sandy and gravelly glaciofluvial deposits derived from gneiss, granite, schist, and/or phyllite Typical profile Ap-0 to 8 inches: fine sandy loam Bw1 -8 to 16 inches: fine sandy loam Bw2- 16 to 26 inches: fine sandy loam 2C-26 to 65 inches: stratified loamy sand to loamy fine sand Properties and qualities Slope: 0 to 5 percent Depth to restrictive feature: 18 to 38 inches to strongly contrasting textural stratification Natural drainage class: Moderately well drained Runoff class: Very low Capacity of the most limiting layer to transmit water(Ksat): Moderately low to high (0.14 to 14.17 in/hr) Depth to water table: About 17 to 39 inches Frequency of flooding: None Frequency of ponding: None Salinity, maximum in profile: Nonsaline (0.0 to 1.9 mmhos/cm) Available water storage in profile: Low(about 3.4 inches) Interpretive groups Land capability classification. (irrigated): None specified Land capability classification (nonirrigated): 2w Hydrologic Soil Group: C Hydric soil rating: No 13 Custom Soil Resource Report Description of Tisbury Setting Landform: Outwash terraces, valley trains, deltas, depressions, depressions, outwash plains Landform position (two-dimensional): Toeslope Landform position (three-dimensional): Tread, talf, dip Down-slope shape: Concave Across-slope shape: Concave Parent material. Coarse-silty eolian deposits over sandy and gravelly glaciofluvial deposits derived from granite, schist, and/or gneiss Typical profile Ap-0 to 8 inches: silt loam Bw1 -8 to 18 inches: silt loam Bw2- 18 to 26 inches: silt loam 2C-26 to 65 inches: stratified extremely gravelly sand Properties and qualities Slope: 0 to 5 percent Depth to restrictive feature: 24 to 36 inches to strongly contrasting textural stratification Natural drainage class: Moderately well drained Runoff class: Low Capacity of the most limiting layer to transmit water(Ksat): Moderately low to high (0.14 to 14.17 in/hr) Depth to water table: About 18 to 30 inches Frequency of flooding: None Frequency of ponding: None Salinity, maximum in profile: Nonsaline (0.0 to 1.9 mmhos/cm) Available water storage in profile: Low(about 4.3 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 2e Hydrologic Soil Group: C Hydric soil rating: No Minor Components Merrimac Percent of map unit. 5 percent Landform: Outwash plains, outwash terraces, moraines, eskers, kames Landform position (two-dimensional): Backslope, footslope, summit, shoulder Landform position (three-dimensional): Side slope, crest, riser, tread Down-slope shape: Convex Across-slope shape: Convex Hydric soil rating: No Agawam Percent of map unit: 5 percent Landform: Moraines, kames, kame terraces, outwash plains, outwash terraces Landform position (two-dimensional): Backslope, shoulder, footslope, summit Landform position (three-dimensional): Side slope, crest, tread, riser, rise Down-slope shape: Convex Across-slope shape: Convex 14 Custom Soil Resource Report Hydric soil rating: No Haven Percent of map unit: 3 percent Landform: Outwash terraces, moraines, kames, kame terraces, outwash plains Landform position (two-dimensional): Shoulder, footslope, backslope, summit Landform position (three-dimensional): Side slope, crest, riser, tread, rise, dip Down-slope shape: Convex Across-slope shape: Convex Hydric soil rating: No Raypol Percent of map unit. 2 percent Landform: Outwash plains, outwash terraces, valley trains, deltas, depressions, depressions Landform position (two-dimensional): Toeslope Landform position (three-dimensional): Tread, dip, talf Down-slope shape: Concave Across-slope shape: Concave Hydric soil rating: Yes 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: Deltas, dunes, outwash plains, outwash terraces Landform position (three-dimensional): Riser, tread 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 9 inches: moderately decomposed plant material A - 9 to 3 inches: loamy sand 15 Custom Soil Resource Report 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 Natural 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 Salinity, maximum in profile: Nonsaline (0.0 to 1.9 mmhos/cm) Available water storage in profile: Low(about 3.6 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 2s Hydrologic Soil Group: A Hydric soil rating: No Minor Components Deerfield, loamy sand Percent of map unit: 10 percent Landform: Terraces, deltas, 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, eskers, kames, outwash plains Landform position (two-dimensional): Summit, shoulder, backslope Landform position (three-dimensional): Nose slope, side slope, crest, head slope, rise Down-slope shape: Convex Across-slope shape: Convex, linear Hydric soil rating: No 3613--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 16 Custom Soil Resource Report 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: Deltas, dunes, outwash plains, outwash terraces Landform position (three-dimensional): Riser, tread 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: 3 to 8 percent Depth to restrictive feature: More than 80 inches Natural drainage class: Excessively drained Runoff class: Low Capacity of the most limiting layer to transmit water(Ksat): 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 Salinity, maximum in profile: Nonsaline (0.0 to 1.9 mmhos/cm) Available water storage in profile: Low (about 4.5 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 2s Hydrologic Soil Group: A Hydric soil rating: No Minor Components Hinckley, loamy sand Percent of map unit. 10 percent Landform: Outwash plains, deltas, eskers, kames 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: Linear, convex Hydric soil rating: No Deerfield, loamy sand Percent of map unit: 5 percent 17 Custom Soil Resource Report Landform: Deltas, outwash plains, terraces Landform position (two-dimensional): Footslope Landform position (three-dimensional): Tread, talf Down-slope shape: Linear Across-slope shape: Linear Hydric soil rating: No 18 APPENDIX B SOIL PERMEABILITY REPORT WELTI GEOTECHNICAL, P.C. Formerly Dr.Clarence Welti, PE. PC. 227 Williams Street• P.O. Box 397 Glastonbury,CT 06033-0397 (860)633-4623/FAX(860)657-2514 January 2, 2018 Mr. Joe DiCarlo Kaestle Boos Associates, Inc. 416 Slater Road, P.O. Box 52590 New Britain, CT 06050-2590 Re: Proposed Stormwater Infiltration System at 140 Troy Road, South Windsor, CT Dear Joe: Pursuant to your request we observed a test pit taken at the above the site. The pit was excavated to a depth of depth of 6 feet. The soils cross section included about 12"of topsoil and subsoils with roots underlain by a fine sand with trace silt. Groundwater water was not evident in the test pit. A laboratory permeability test and sieve analysis were performed on a sample taken from the bottom of the test pit. The report for the sieve analysis is attached herewith.The sample had a permeability of 28 feet/day. Also attached is a table which provides an estimate of the permeability based on the DSo size and uniformity coefficient taken from the sieve analysis. If you have any questions,please call me. Very truly yours, Max Welti, P. E. v i e BM o NAIL IN POLE o ELEV.=95.45 v � � (FD o IFD)� d f19__ a SNET SNE 7 3523 5100 9�` � a5��1? g%pR 95x28 4 F, 9505 97 71 9%52 120' __ -__---_-_.------------- -- x � ---- 96x30 96x52 -�bx4r, ESanitaLSewer �7_5g / _ 9; -9&-_- _ TROY ROAD SANMH T — _ TF=96.38 °-5�..v7 95�..71L____�� 96xna aF..�g FLOW LINE=88.03 96�_— q�' _ 95x77 / ---96�H.-_-___ _- 97x02 96x66 97x 01 97x87 M0Nx26T-I �,\4fl_3 5 _ S_68'9'40 E _ _ 225.00' ——— 95x32 MERESTONE /.� Di I 97 39 \ (FD) 96 94 - N 87137,8 10 9�xan /} —�— N 871461.80 O 96 63 96 76 x E 10 �818.19 I I \\ \ E 1047609.34 F? x x // — ____ ,4 I I I \ 95x 14 �t / 98,43 98x32 . I I \ 98x50 C 9 �04 96x52 9757 O 194x6� �5 x 11 to I C] I \ x \ 96 69 93x2\8 � -'----�5�98---_\ x 97x 51 98x32 98x03 /96x9� o to x 90 50' FRONT YAF D 93x \ \ 99x5 94x38 96x25 97x 51 96x34 `I /95x391,3480 N E TEST PIT a 4 / o o / THY E. KRIVICK I} —_\-- 3x JL.LIVAN AVENUE 01 ��, ---- 273 P. 343 w 92x42 93x24 \`\ 94x16 of I I� 92x61 \\\ i 92.75 oI IO o - I 0 N I I(/1 Z — — N 871322.56 15' REAR YARD — J E 1047553.54 M N c^ (FO) /91x91 \ 92..45- 92.55 , �\ N68'9'40"W 92x37 9277 225.00' — — G2x0.4 MON — TEST PIT LOCATION (FD) N 871238.86 MK CONSTRUCTION OFFlCES E 1047762.39 140 TROY ROAD SOUTH WINDSOR, CT 06074 1 \\ 11/28/2017 #17018.00 I N/F 92x22 BARBARA.CHARLES &GEORG Particle Size Distribution Report O o 0 O N 0 O 0 O V N 100 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I 1 I I I I I I I I I I I I I I I I I I I I I 90 I I I I I I I I I I I I I I I I I 80 I I I I I I I I I I I I I I iI I I I I I I I I I I I I I I I I I I I I I I I I I I I I j 70 I I I I I I I I I I I I I I I I I I I t I I I I I I I I I 1 I I I I I 1 I I I I I I I I I I 1 I I I j W 60 I I I I I I I I I Z I I I I I I I I I I I I I i I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I Z 50 I I I I I I 1 I W I I I I I I I I U I I I I I I I N 1 1 I I 1 1 I 1 LL I 1 I 1 I 1 I 1 1 I I I I I W 40 I I I I I I I C- I I I I I I 1 1 I I I I I I I I I I I I I I I I I I I I I I I I 1 I I I I I I I I I I I I I I I I I I I I I I I I I I 1 I I I I 30 I I I I I I I I I I I 1 I I I I I I I I I I I I I I I I 20 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I 1 I I I I I I 10 I I I I I I I I I I I I I I I I 1 I I I I I I I I I I 0 I I I I I I I I I I I I 100 10 1 0.1 0.01 0.001 GRAIN SIZE-mm. %+3" %Gravel %Sand %Fines Coarse Fine Coarse Medium Fine Silt Clay O 0.0 0.0 0.0 0.0 9.8 86.6 3.6 LL PL n0.3827 D D D D D C C11 O 0.2669 0.2350 0.1795 0.1358 0.1161 1.04 2.30 Material Description USCS AASHTO O Project No. Client: MK CONSTRUCTION Remarks: Project: PROPOSED OFFICE BUILDING, 140 TROY ROAD,SOUTH WTNDSOR,CT O Source of Sample:TESTPIT#1 ECLA:FRENCE WELTI ASSOCIATES, INC. Figure 42 / SOILS AND WATER 3.5 PERMEABILITY / 4, .. U.S.std-sieveU.S. td.Sieve 10 30 60 200 10 30 6 200 6000 4000 4000 2000 Dense soils 2000 50% relative density N N 1000 \ 800 \ 1000 \ 600 \ 800 E 400 \ 3. 600 \ 1 \ — CO — > 400 CO F \ \ \ 200 E E 200a. 100 � i a 2 80 3 100 3 60 q 80 5 40 60 \ 5 \ 6 6 1 40 20 0.25 0.1 0.05 0.01 2.0 1.0 0.5 D50 Grain size,mm 2.0 1.0 0.2 0.1 0.05 0.01 Coarse Medium fine Silt or Clay ( 0.5 1.) G in size(mm) Sand Coarse. Medium (a) Fine Silt or Clay Sand Figure 3.4 Permeability Estimates. Courtesy Morefrench American Corporation. (a) For /ram,y (b) dense soils.(b)For soils with 50%relative density.(c)for loose soils. Figure 3.4 (Continued) ognize the following limitation of the method. The major determining factor — - of K is the effective pore size of the soil. To the extent that grain size is t 2. Stratification. Some soils are lenticular, with seams of very clean or representative of pore size, the various methods can give reliable estimates. very silty sand a few centimeters or less in thickness.The typical 18-in. (450- When the actual in situ permeability turns out to be significantly different mm) sample is mixed during the grain size analysis, and the stratification is from the estimates, we have found that some factor besides grain size is y not reflected in the curve. Horizontal and vertical permeability may vary affecting pore size. From experience these factors can be of interest: greatly from the average value estimated. 3. Cementation. Some sands, particularly in subtropical areas, are 1. Density and uniformity. The Prugh method (Fig. 3.4) adjusts for these weakly cemented. With some we have experienced, the cementation ap- factors. Where a soil is very loose or very dense, or very uniform, Prugh is parently took place while the sand was in a very loose state. The ASTM preferred. sampling procedures disaggregate the structure, or the friable surviving frag- APPENDIX PROPOSED CONDITIONS DRAINAGE CALCULATIONS 4j 101 SIDE SETBACK > m C z 1> I z C3 Or Z 0 0-1 0 0 0 m bd A IFMK -ux TF17 p 0 0. 0 to N) MD V � co (o 0 IC-L L U.. co -4 -u > m 0 to 4 I / — —. rn co cyl ID -4 0 DRAWNG me PROPOSED CONDITIONS DRAINAGE MAP PROJECT— OFFICES OF IVIK CONSTRUCTION RNC 5 TROY ROAD 2/13/18 SOUTH WINDSOR,CT benesch '_-nym-irl s,JeM., s PROJECT 10. 70432 1 1— V=20' 111ER—E DA-1 P-1 P-2 P-3 P-4 Prop sed Propose roposed Prop sed 1P 2P 3P Gallery 1 Gallery 2 Gallery 3 SUbCat Reach Pon LInk Routing Diagram for 70432 Drainage 2-13-18 Prepared by Microsoft, Printed 2/13/2018 HydroCADO 10.00-14 s/n 07864 ©2015 HydroCAD Software Solutions LLC 70432 Drainage 2-13-18 Prepared by Microsoft Printed 2/13/2018 HydroCAD® 10.00-14 s/n 07864 ©2015 HydroCAD Software Solutions LLC Page 2 Area Listing (all nodes) Area CN Description (acres) (subcatchment-numbers) 0.417 98 Paved parking, HSG A (P-1, P-2, P-3, P-4) 0.417 98 TOTAL AREA 70432 Drainage 2-13-18 Type 1/124-hr 10-Year Rainfall=4.70" Prepared by Microsoft Printed 2/13/2018 HydroCAD® 10 00-14 s/n 07864 ©2015 HydroCAD Software Solutions LLC Page 3 Summary for Subcatchment P-1: Proposed Runoff = 0.72 cfs @ 12.07 hrs, Volume= 0.057 af, Depth> 4.46" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Type III 24-hr 10-Year Rainfall=4.70" Area (sf) CN Description 6,633 98 Paved parking HSG A — 6,633 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment P-1: Proposed Hydrograph -- -- - - --- - - - - -- - -- - - - - - - - - -- - - - -- - - - 0.8. ___ _ ❑Runoff 0.75 0.72 cfs e 0.7 T�p _1I1_24=hr 0.65- 1 .10-Year- Rainfall=4.70" 0.6 Runo#f area=6;633 sf - - 0.55- - 0.5- ' Ru-noff Volume=0-.057 of u 0.45 -Runoff Depth>4.46!� 3 0.4 0 0.35 I Cis min 0.3- 1 -CN . 98 0.25 0.2 - 0.15 I - 0.1 0.05 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) 70432 Drainage 2-13-18 Type l//24-hr 10-Year Rainfall=4.70" Prepared by Microsoft Printed 2/13/2018 HydroCAD® 10.00-14 s/n 07864 ©2015 HydroCAD Software Solutions LLC Page 4 Summary for Subcatchment P-2: Proposed Runoff = 0.25 cfs @ 12.07 hrs, Volume= 0.020 af, Depth> 4.46" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Type III 24-hr 10-Year Rainfall=4.70" Area (sf) CN Description 2,288 98 Paved parking HSG A 2,288 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment P-2: Proposed Hydrograph 0.28- - --- --- -- - -- -. __. . _----- - -- ❑Runoff 0.26: ' 0.25 cfs 0.24 Type 111-24=hr 0.22- ' 10-Year Rain fall=4.70-- -- --- -- --- -- - ----- - ------ - -- ---- - --- --- ------- ---- 0.2- -Runoff Area=2}288_Sf__ 0.18- Runoff Volume=0.020-af w 0.16- ' Runoff Depth->4.46"-- . -- -- - - --- -- 0.14- 2 ... --- - ----- - - . . - - - - - ------ ----- --- LL 0.12 Tc=5.0 min 0.1- CN=98 ----- --- -- - - - - - _ _ . — - -- --- ----- --- -- - - - 0.01-1 0.06 0.04- -- 0.02 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) 70432 Drainage 2-13-18 Type Ill 24-hr 10-Year Rainfall=4.70" Prepared by Microsoft Printed 2/13/2018 HydroCAD® 10 00 14 s/n 07864 ©2015 HydroCAD Software Solutions LLC Page 5 Summary for Subcatchment P-3: Proposed Runoff = 0.37 cfs @ 12.07 hrs, Volume= 0.029 af, Depth> 4.46" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Type III 24-hr 10-Year Rainfall=4.70" Area (sf) CN Description 3,392 98 Paved parking, HSG A 3,392 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment P-3: Proposed Hydrograph ------- - - --- -- ---- - - -- --- - - ------- ------ --- - ----- - - - - -- - - - - - -- - - -- Runoff 0.4: - --------- - - -- - - - - - --- --- 0.37cfs - 0.38' 0.36- -Type-1I1-24-hr- - - - - - - --- - -- - 0.34 -- - - - - 0.32- _ . - -- i RA.I. al---- .._ . -- - - -- - - - - - - - - - - - - - 0.3- Runoff Area=3-392-sf- --- - - - - - - --- . - - - - - - - ._- - -- -- - -- - _ - - - - ---- - 0.26- Runoff Volume=0.029 -af - - -- - 0.24= -- - - - - -- - - - - - - -.. -- - --- - - - - - 0.22 -Runoff Depth>4.46" c 0.2 ---- - -- - - -- . . --CF min._ -- -LL o.18 T = ----- - - ---- - CN=98 0.14 - - - 0.12 0.1 - -- I - 0.08 0.06 - 0.04- --- ---- 0.02 ,. ... 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) 70432 Drainage 2-13-18 Type 111 24-hr 10-Year Rainfall=4.70" Prepared by Microsoft Printed 2/13/2018 HydroCAD010.00-14 s/n 07864 ©2015 HydroCAD Software Solutions LLC Page 6 Summary for Subcatchment P-4: Proposed Runoff = 0.64 cfs @ 12.07 hrs, Volume= 0.050 af, Depth> 4.46" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Type III 24-hr 10-Year Rainfall=4.70" Area (sf) CN Description 5,862 98 Paved parking, HSG A 5,862 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, Subcatchment P-4: Proposed Hydrograph - --- . .. __ .. ---- -- - - - --- - - - - -- - - _ - -- - - - 0.7 pRunoff -- . .. ... .. . . .. . . . . .... .. 0.64 cfs ---------- - 0.65-_ Type-III-24-hr-- - ---- -- - _ . - - --- - 0.6- 0.55- 1-0.;Year Rainfal1=410J4-- 0.5- Runoff Area=5,862 sf -- - -- ----- --------------------- - ------- - -- - - ----- 0.45- _Runoff Volume=0.050 of JT 04 Runoff Depth>4.46 ---- 0 0.35- U. 0.3- -c=5:0-min _ -- - - - - - --- 0.25 IY=98-- - - - - - - - - - - - - 0.2 ---------- -- - 0.15- -0.1 --- - - --- --- - 0.05 0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1i 18 19 20 21 22 23 24 Time (hours) III I 70432 Drainage 2-13-18 Type /// 24-hr 10-Year Rainfall=4.70" Prepared by Microsoft Printed 2/13/2018 HydroC AD@ 1n 00-1d cM 07864 n 2015 HydroCAD Software Solutions LLC Paste 7 Summary for Pond 1 P: Gallery 1 Inflow Area = 0.152 ac,100.00% Impervious, Inflow Depth > 4.46" for 10-Year event Inflow = 0.72 cfs @ 12.07 hrs, Volume= 0.057 of Outflow = 0.11 cfs @ 12.54 hrs, Volume= 0.057 af, Atten= 85%, Lag= 28.0 min Discarded = 0.11 cfs @ 12.54 hrs, Volume= 0.057 of Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Peak Elev= 95.10' @ 12.54 hrs Surf.Area= 0.008 ac Storage= 0.015 of Plug-Flow detention time= 32.0 min calculated for 0.057 of(100% of inflow) Center-of-Mass det. time= 31.9 min ( 779.6 - 747.7 ) Volume Invert Avail Storage Storage Description #1A 91.90, 0.007 of 6.33'W x 52.50'L x 3.54'H Field A 0.027 of Overall - 0.009 of Embedded = 0.018 of x 40.0% Voids #2A 92.40' 0.009 of Cultec R-330XLHD x 7 Inside#1 Effective Size= 47.8"W x 30.0"H => 7.45 sf x 7.00'L = 52.2 cf Overall Size= 52.0"W x 30.5"H x 8.50'L with 1.50' Overlap Row Length Adjustment= +1.50'x 7.45 sf x 1 rows 0.016 of Total Available Storage Storage Group A created with Chamber Wizard Device Routing Invert Outlet Devices #1 Discarded 91.90' 14.000 in/hr Exfiltration over Surface area Conductivity to Groundwater Elevation = 0.00' Qiscarded OutFlow Max=0.11 cfs @ 12.54 hrs HW=95.10' (Free Discharge) T--1=Exfiltration ( Controls 0.11 cfs) 1 70432 Drainage 2-13-18 Type/1/ 24-hr 10-Year Rainfall=4.70" Prepared by Microsoft Printed 2/13/2018 HydroCAD® 10.00-14 s/n 07864 ©2015 HydroCAD Software Solutions LLC Page 8 Pond 1 P: Gallery 1 - Chamber Wizard Field A Chamber Model=Cultec R-330XLHD(Cultec Recharger®330XLHD) Effective Size= 47.8"W x 30.0"H => 7.45 sf x 7.00'L = 52.2 cf Overall Size= 52.0"W x 30.5"H x 8.50'L with 1.50' Overlap Row Length Adjustment= +1.50'x 7.45 sf x 1 rows 7 Chambers/Row x 7.00' Long +1.50' Row Adjustment= 50.50' Row Length +12.0" End Stone x 2 = 52.50' Base Length 1 Rows x 52.0" Wide + 12.0" Side Stone x 2 = 6.33' Base Width 6.0" Base + 30.5" Chamber Height + 6.0" Cover= 3.54' Field Height 7 Chambers x 52.2 cf +1.50' Row Adjustment x 7.45 sf x 1 Rows = 376.3 cf Chamber Storage 1,177.6 cf Field - 376.3 cf Chambers = 801.3 cf Stone x 40.0% Voids = 320.5 cf Stone Storage Chamber Storage + Stone Storage = 696.8 cf= 0.016 of Overall Storage Efficiency = 59.2% 7 Chambers 43.6 cy Field 29.7 cy Stone 70432 Drainage 2-13-18 Type Ill 24-hr 10-Year Rainfall=4.70" Prepared by Microsoft Printed 2/13/2018 HydroCADO 10 00-14 s/n 07864 ©2015 HydroCAD Software Solutions LLC Page 9 Pond 1 P: Gallery 1 Hydrograph --- - -- - -- -- ---- --------- ----- ----- ---- - ------ ----- - .-- -- -- L -- -- ---- -- - -- .. --- - ❑Inflow 0.8- I 0.72 cfs ❑Discarded --- - -- - --- - - 0.75 lnffow Area=0.152 ac 0.7 0.65 Peak-E-lev=95. 1-0' - 0.6 0.55- 0.5 0.45." - -- -- - - - -- - - -- - .- _- _ _-- - - - - - - -- - -- -- --- - - - 3 0.4- ,' _ LL 0.35- - - - - - - -- -- - - - -- -- -- - 0.25- 0.15- ' - - 0.11 cfs -- --- - ----- - - - -------- -- -- - -- - 0.05 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) Pond 1 P: Gallery 1 Stage-Discharge i � ❑Discarded 95 d 94- a w ; 93- 92- EAItration 0 0.01 0.02 0.03 0.04 0.05 0.66 0.07 0.68 0.09 0.1 0.11 Discharge (cfs) 70432 Drainage 2-13-18 Type 111 24-hr 10-Year Rainfall=4.70" Prepared by Microsoft Printed 2/13/2018 HydroCAD® 10.00-14 s/n 07864 ©2015 HydroCAD Software Solutions LLC Page 10 Summary for Pond 2P: Gallery 2 Inflow Area = 0.130 ac,100.00% Impervious, Inflow Depth > 4.46" for 10-Year event Inflow = 0.62 cfs @ 12.07 hrs, Volume= 0.048 of Outflow = 0.10 cfs @ 12.53 hrs, Volume= 0.048 af, Atten= 84%, Lag= 27.9 min Discarded = 0.10 cfs @ 12.53 hrs, Volume= 0.048 of Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Peak Elev= 93.22' @ 12.53 hrs Surf.Area= 0.007 ac Storage= 0.013 of Plug-Flow detention time= 31.3 min calculated for 0.048 of(100% of inflow) Center-of-Mass det. time= 31.2 min ( 778.9 - 747.7 ) Volume Invert Avail.Storage Storage Description #1A 90.10, 0.006 of 6.33W x 45.50'L x 3.54'H Field A 0.023 of Overall - 0.007 of Embedded = 0.016 of x 40.0%Voids #2A 90.60' 0.007 of Cultec R-330XLHD x 6 Inside#1 Effective Size= 47.8"W x 30.0"H => 7.45 sf x 7.00'L = 52.2 cf Overall Size= 52.0"W x 30.5"H x 8.50'L with 1.50' Overlap Row Length Adiustment= +1.50' x 7.45 sf x 1 rows 0.014 of Total Available Storage Storage Group A created with Chamber Wizard Device Routing Invert Outlet Devices #1 Discarded 90.10' 14.000 in/hr Exfiltration over Surface area Conductivity to Groundwater Elevation = 0.00' Qtrded OutFlow Max=0.10 cfs @ 12.53 hrs HW=93.22' (Free Discharge) Exfiltration ( Controls 0.10 cfs) 70432 Drainage 2-13-18 Type 11124-hr 10-Year Rainfall=4.70" Prepared by Microsoft Printed 2/13/2018 HydroCAD® 10 00-14 s/n 07864 ©2015 HydroCAD Software Solutions LLC Page 11 Pond 2P: Gallery 2 - Chamber Wizard Field A Chamber Model= Cultec R-330XLHD(Cultec Recharger®330XLHD) Effective Size= 47.8"W x 30.0"H => 7.45 sf x 7.001 = 52.2 cf Overall Size= 52.0"W x 30.5"H x 8.50'L with 1.50' Overlap Row Length Adjustment= +1.50' x 7.45 sf x 1 rows 6 Chambers/Row x 7.00' Long +1.50' Row Adjustment =43.50' Row Length +12.0" End Stone x 2 = 45.50' Base Length 1 Rows x 52.0" Wide + 12.0" Side Stone x 2 = 6.33' Base Width 6.0" Base + 30.5" Chamber Height + 6.0" Cover= 3.54' Field Height 6 Chambers x 52.2 cf +1.50' Row Adjustment x 7.45 sf x 1 Rows = 324.1 cf Chamber Storage 1,020.6 cf Field - 324.1 cf Chambers = 696.5 cf Stone x 40.0% Voids = 278.6 cf Stone Storage Chamber Storage + Stone Storage = 602.7 cf= 0.014 of Overall Storage Efficiency = 59.1% 6 Chambers 37.8 cy Field 25.8 cy Stone I � I 70432 Drainage 2-13-18 Type l/l 24-hr 10-Year Rainfall=4.70" Prepared by Microsoft Printed 2/13/2018 HydroCAD® 10.00-14 s/n 07864 ©2015 HydroCAD Software Solutions LLC Page 12 Pond 2P: Gallery 2 Hydrograph - - - -- - ---- - -- -- - - --- --- ------- - --- ----- ---- _- ❑Inflow 0.62 cfs ❑Discarded 0.65 Inflow Area=0.-130-ac - ---- -.. . ---- - ----- -- . - . -- -- - -- - 0.55- Peak_ELev=93,22! -- -- - -- - ----- -- - ----- - - ----- ---- - 0.5 - Storage=0 - - - .� :013 �f- - 0.45- _ - - - - - - - - --- - - - 3 0.35 - - - - - --- - - - -- - - -- - -- - ---- --- - -- -- - - - - -- 0 M0.3 - ---- -- --- - -- ---- -- ---- - - - - - - 0.25- - - -------- -- ---- - ------------ 0.15 - ... --- - - ---- 0.10 cfs 0.05 J 0- 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) Pond 2P: Gallery 2 Stage-Discharge I � � � � � ❑Discarded 92 . o '� > w I 1 91 E4Itration 0 0.005 0.01 0.015 0.02 0.025 6A3 0.035 0.04 6.645 0.05 0.055 0.06 0.065 0.07 0.075 0.08 0.085 0.69 0.095 Discharge (cfs) 70432 Drainage 2-13-18 Type l// 24-hr 10-Year Rainfall=4.70" Prepared by Microsoft Printed 2/13/2018 HydroCAD010 00 14 s/n 07864 ©2015 HydroCAD Software Solutions LLC Page 13 Summary for Pond 3P: Gallery 3 Inflow Area = 0.135 ac,100.00% Impervious, Inflow Depth > 4.46" for 10-Year event Inflow = 0.64 cfs @ 12.07 hrs, Volume= 0.050 of Outflow = 0.10 cfs @ 12.54 hrs, Volume= 0.050 af, Atten= 85%, Lag= 28.2 min Discarded = 0.10 cfs @ 12.54 hrs, Volume= 0.050 of Routing by Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Peak Elev= 93.86' @ 12.54 hrs Surf.Area= 0.007 ac Storage= 0.013 of Plug-Flow detention time= 33.2 min calculated for 0.050 of(100% of inflow) Center-of-Mass det. time= 33.1 min ( 780.8 - 747.7 ) Volume Invert Avail Storage Storage Description #1A 90.50' 0.006 of 6.33'W x 45.50%x 3.54'H Field A 0.023 of Overall - 0.007 of Embedded = 0.016 of x 40.0% Voids #2A 91.00, 0.007 of Cultec R-330XLHD x 6 Inside#1 Effective Size=47.8"W x 30.0"H => 7.45 sf x 7.00'L = 52.2 cf Overall Size= 52.0"W x 30.5"H x 8.50'L with 1.50' Overlap Row Length Adjustment= +1.50' x 7.45 sf x 1_rows 0.014 of Total Available Storage Storage Group A created with Chamber Wizard Device Routing Invert Outlet Devices #1 Discarded 90.50' 14.000 in/hr Exfiltration over Surface area Conductivity to Groundwater Elevation = 0.00' fiscarded OutFlow Max=0.10 cfs @ 12.54 hrs HW=93.86' (Free Discharge) Z1=Exfiltration ( Controls 0.10 cfs) 70432 Drainage 2-13-18 Type 111 24-hr 10-Year Rainfall=4.70" Prepared by Microsoft Printed 2/13/2018 fydroCAD® 10.00-14 s/n 07864 ©2015 HydroCAD Software Solutions LLC Page 14 Pond 3P: Gallery 3 - Chamber Wizard Field A Chamber Model= Cultec R-330XLHD(Cultec Recharger®330XLHD) Effective Size= 47.8"W x 30.0"H => 7.45 sf x 7.001 = 52.2 cf Overall Size= 52.0"W x 30.5"H x 8.501 with 1.50' Overlap Row Length Adjustment= +1.50' x 7.45 sf x 1 rows 6 Chambers/Row x 7.00' Long +1.50' Row Adjustment =43.50' Row Length +12.0" End Stone x 2 = 45.50' Base Length 1 Rows x 52.0" Wide + 12.0" Side Stone x 2 = 6.33' Base Width 6.0" Base + 30.5" Chamber Height + 6.0" Cover= 3.54' Field Height 6 Chambers x 52.2 cf +1.50' Row Adjustment x 7.45 sf x 1 Rows = 324.1 cf Chamber Storage 1,020.6 cf Field - 324.1 cf Chambers = 696.5 cf Stone x 40.0% Voids = 278.6 cf Stone Storage Chamber Storage + Stone Storage = 602.7 cf= 0.014 of Overall Storage Efficiency = 59.1% 6 Chambers 37.8 cy Field 25.8 cy Stone 70432 Drainage 2-13-18 Type /// 24-hr 10-Year Rainfall=4.70" Prepared by Microsoft Printed 2/13/2018 HydroCAD010 00-14 s/n 07864 ©2015 HydroCAD Software Solutions LLC Page 15 Pond 3P: Gallery 3 Hydrograph - - -- ----- - - --------- ---------------- -- --- - - ----- -- - ---- --- ❑Inflow 0.7 - -- - ---------- - -- - 0.64cfS - - ---- -- - - -- ❑Discarded 0.65 - Inflow Area=0:135-ac -- 0.6 - Peak Elev=93.86' 0.55- 0.5 Storage=0.013 of w 0.4 v -- - ------ - --- -- - - _ - - ----- -- -- -- -- -- - - - 0.35- - - - - ... - ------ - -- - -- -- 0.25 --- -- _ . .. _ - - 0.2- 0.15 - 0.10 cfs - - 0.05- f 0. 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Time (hours) Pond 3P: Gallery 3 Stage-Discharge 94 ❑Discarded 93 c / iu 92- w i 91 EAltration 0 0.005 0.01 0.015 0.02 0.025 0.03 0.035 0.04 0.045 0.05 0.055 0.06 0.065 0.07 0.075 0.08 0.085 0.09 0.095 Discharge (cfs) Connecticut Department of GIS CODE#: — ENERGY & ForDEEPWN4 ENVIRONMENTAL PROTECTION 79 Elm Street• Hartford,CT 06106-5127 www.ct.gov/deep Affirmative Action/Equal Opportunity Employer Statewide Inland Wetlands & Watercourses Activity Reporting Form Please complete and mail this form In accordance with the instructions on pages 2 and 3 to: DEEP Land&Water Resources Division, Inland Wetlands Management Program,79 Elm Street, 3rd Floor,Hartford,CT 06106 Incomplete or incomprehensible forms will be mailed back to the inland wetlands agency. PART I: Must Be Completed By The Inland Wetlands Agency 1. DATE ACTION WAS TAKEN: year: month: 2. ACTION TAKEN(see instructions,only use one code): 3. WAS A PUBLIC HEARING HELD(check one)? yes ❑ no ❑ 4. NAME OF AGENCY OFFICIAL VERIFYING AND COMPLETING THIS FORM: (print name) (signature) PART II: To Be Completed By The Inland Wetlands Agency Or The Applicant 5. TOWN IN WHICH THE ACTION IS OCCURRING(print name): South Windsor does this project cross municipal boundaries(check one)? yes ❑ no if yes,list the other town(s)in which the action is occurring(print name(s)): 6. LOCATION(see instructions for information): USGS quad name: Manchester or number: 38 subregional drainage basin number: 4000 7. NAME OF APPLICANT,VIOLATOR OR PETITIONER(print name): MSKW, LLC 8. NAME&ADDRESS I LOCATION OF PROJECT SITE(print information): Lot #5, 140 Troy Road briefly describe the action/project/activity(check and print information): temporary❑ permanent❑X description: Construction of +/— 5, 000 Sq Ft Office building, parking area, landscapin 9. ACTIVITY PURPOSE CODE(see instructions,only use one code): D 10. ACTIVITY TYPE CODE(S)(see instructions for codes): 2 10 14 , 11. WETLAND I WATERCOURSE AREA ALTERED(must provide acres or linear feet): wetlands: —0 acres open water body: —0 acres stream: —0 linear feet 12. UPLAND AREA ALTERED(must provide acres): 0 . 84 acres 13. AREA OF WETLANDS/WATERCOURSES RESTORED, ENHANCED OR CREATED(must provide acres): —0 acres DATE RECEIVED: PART III: To Be Completed By The DEEP DATE RETURNED TO DEEP: FORM COMPLETED: YES NO FORM CORRECTED/COMPLETED: YES NO rev.121201E odf MSKW LLC 6 Plum Lane South Windsor, CT 06074 Phone: (860) 289-8400 Fax: (860) 289-0125 November 21, 2017 Michele Lipe, AICP Director of Planning 1540 Sullivan Avenue South Windsor, CT 06074 RE; Offices of MI{ Construction, Inc. Troy Road South Windsor, CT Dear Ms. Lipe, We have authorized Kaestle Boos Associates, Inc., Architects/Engineers, to act as our agents/applicants, for the above-referenced project, regarding submissions to be made to the Town. Ver Tr ly Yours, Mike Switzer President, MSKW, LLC HIGHLAND SOILS, LLC November 3, 2017 Mike Switzer MSKW, LLC 6 Plum Lane South Windsor, CT 06074 RE: LOTS TROYROAD .SOUTH WINDSOR, CT Dear Mike: On October 31, 201.71 conducted a soil survey of the above-referenced property. As a result of my on-site survey I have concluded that the property does not contain regulated wetlands or water courses. The property is wooded and contains well-drained soils of the Agawam Series. No obvious off-site wetland areas were identified adjacent to the property lines. The off site survey is based on a visual survey conducted from the property. If you have any questions, or require additional information, please call me at (860) 742-5868. fiery truly ours, John P. Ianni M.S. Professional Soil Scientist Highland Soils LLC,P.O.Box 337,Storrs,Connecticut 06268 (860) 742-5868*r:;_ii; Page 1 `0%4 N 3f4 C Tiov� O-P slot� ?Av� .i • w� 1540 SULLIVAN AVENUE • SOUTH WINDSOR, CT 06074 f�OSOR•coN� TELEPHONE(860) 644-2511 CERTIFIED MAIL 7014 2120 0003 3214 3900 January 16, 2018 Kaestle Boos, Associates Luke McCoy 416 Slater Road New Britain, CT 06050 Dear Mr. McCoy: Re: Appl. 17-44P, MK Construction Zone Change We .axe pleased to advise you that at its January 9, 2018 meeting, the Planning and Zoning voted to approve your request for a zone change of .84 acres from .General Commercial (GC) zone to Industrial (I) zone on property located at L005 (140) Troy Road with the following conditions: 1. The Planning and Zoning Commission finds that the zone change is in conformance with the Town Plan of Conservation and Development. 2. The effective date of the zone change is upon filling of required map in the Office of the Town Clerk. 3. Within ninety days, a zone change map (1"=40')with an A-2 certification must be filed on the land records, showing all boundary lines and the acreage of the land where the zone change was granted. The map shall be drawn in accordance with the rules and regulations of the State Board of Registration for Professionals Engineers and Land Surveyors and shall be stamped and signed by a Registered Land Surveyor. The zone change map must be submitted on black and white mylars,with this approval letter thereon,together with three print copies of the Zone Change. Sincerely, Bart Pacekonis, Chairman Planning & Zoning Commission BP/llz TOWN OF SOUTH WINDSOR,CONNECTICUT Parcel ID Site Address Owner Name Mailing Address Mailing City Mailing State Mailing Zip 90000141 141 TROY ROAD CURULLI MELISSA M 141 TROY ROAD SOUTH WINDSOR CT 06074-0000 90000125 125 TROY ROAD CYR MAURINE F 125 TROY ROAD SOUTH WINDSOR CT 06074-0000 90000151 151 TROY ROAD FILES TERRY H &SANDRA H 151 TROY ROAD SOUTH WINDSOR CT 06074-0000 87300648 648 SULLIVAN AVENUE H AND V LLC PO BOX 875 SOUTH WINDSOR CT 06074-0000 87300620 620 SULLIVAN AVENUE KRIVICKAS GEORGE A& DOROTHY E TR 84 AYERS RD SOUTH WINDSOR CT 06074-0000 90000135 135 TROY ROAD LAUSIER PATRICK A& DORIS V 135 TROY ROAD SOUTH WINDSOR CT 06074-0000 90000118 118 TROY ROAD KOCHANSKI LYNN &CRAIG 2 STEPPING STONE DR BROAD BROOK CT 06016-0000 9000L005 1 L005 TROY ROAD MSKW LLC 6 PLUM LANE SOUTH WINDSOR CT 06074-0000 87300668 668 SULLIVAN AVENUE GILSON BARBARA E ETAL 668 SULLIVAN AVENUE SOUTH WINDSOR CT 106074-0000 10/11/2017 Town of South Windsor GIS-ArcGIS Server Parcel Application Map Layers Parcel Detail Town of South Windsor Geographic Information System(GIS) Date Printed:10/11/2017 / •*% / r•i'o r j, 1 / or http://southwindsor.mapxpress.nettags_map/ 1/1 2 u1Vl rE®srMEs POSTAL SERVICE® Name and Address of Sender Check ccountabl�e Mail type of mail or service ❑ Adult Signature Required ❑ Priori M p U, A$STAG E estle Boos Assoc. Inc . Priority ail Express � U ❑ Adult Signature Restricted Delivery ❑ Registered Mail NEW BRITAIN, CT 416 Slater Road 08050 Q Certified Mai! ❑ Return Receiptfor MAR MOUNT New Britain, CT 06053 °��rEo�rE� ❑ Certified Mail Restricted Delivery Merchandise POSTdLSERYICEG Q Collect on Delivery(COD) ❑ Signature Confirmation 0000 $3■2 0 ❑ Insured Mail ❑ Signature Confirmation R23041-110E 3-08 Q Priority Mail Restricted Delivery USPS Tracking/Article Number Addressee(Name,Street,City,State,&2rP Code+ Postage (Extra Handling Actuat Value Insured Due ASR ASRD RD RR SC SCRD SH Service) Charge if Registered Value Sender if Fee Fee Fee Fee Fee Fee Fee Fee COD Melissa Curulli 141 Troy Road 47 2' Maurine C r o 125 Troy Road South Windsor CT 06074 47 3. r ca n r 47033th Windsor (IT nen74 d > W 4. H & V LLC South W' ter, CT 06074Geo 47 S Krivi rkja 24 Ayers- Road 4 7 .� � tr. !P r� 3 6. 13 Tr R L) w 47 7. a Lynn & Craig Kochanski Broactbrook, CT 06016 47 8. Barbara Gilson E. ET AL668 Sullivan � �"� . Aire . 47 .�, Total Number of Pieces Total Number of Pieces 9 P stmas ,Per(Name ofrece/vin mpye Listed by Sender Received at ost Offlce lo ;*„ - 8 PS Form 3877,January 2017(Page 1 of 2)ocnr 7 Complete in n Fvn_n�snn_anoA Privacy Notice: For more information on USPS7p'F'Tvacy policies,visit usps.com/privacypolic 10y1N se 7-0� �s-a� ?d&U&o"t O Y C �G 1540 SULLIVAN AVENUE SOUTH WINDSOR, CT 06074 S R•co TELEPHONE (860) 644-2511 CERTIFIDE#70160910000098610912 May 18, 2018 Luke McCoy Kaestle Boos Associates 416 Slater Road PO Box 2050 New Britain, CT 06050 RE: Appl. #18-18P—MK Construction, 140 Troy Road Dear Mr. McCoy: On May 16, 2018, the Inland Wetlands Agency/Conservation Commission approved Appl.#18-18P—MK Construction Site Plan— 140 Troy Rd—Conservation Commission application for approval of a general contracting office and storage yard, stormwater management systems and associated improvements on property located south of Troy Rd. Industrial(1) Zone, with following conditions: 1. The final approved copy of the entire set of plans and this letter reproduced thereon must be submitted to the Planning Department. This must be completed within 65 days of approval prior to any construction activity on the site. Plans submitted to Planning & Zoning Commission shall be considered having met this requirement. 2. The applicant shall indemnify and hold harmless the Town of South Windsor against any liability, which might result from the proposed operation or use. 3. The permit is valid for five years and shall expire on May 16, 2023. It is the landowners)/applicant(s) responsibility to track expiration dates and notify the Commission of a renewal request at least 65 days prior to expiration. 4. A bond of$5,000 for erosion and sediment controls and installation of the stormwater system. 5. All approvals required must be obtained and submitted prior to any activity on the site. 6. A contact person shall be identified on the plans. I Very truly yours, INLAND WETLANDS AGENCY/ CONSERVATION COMMISSION Barbara Kelly, Chairperson i cc: Director of Planning Chief Building Official Town Engineer I