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HomeMy WebLinkAbout17-38P Evergreen Crossing Retirement IWA a RECEIVED SEP 2 9 Z011 TOWN OF SOUTH WINDSOR INLANDS%/ETLA#DSAGENCY INLAND WETLANDS, WATERCOURSES AND CONSERVATIO N Application# 1 7 ` ,YkP Date Received 1 U _ '�-1— C9O)7 fi)unl,4h�Pif 77 M hk aol 70/3,5W INSTRUCTIONS 1. Fifteen applications (15) with map and plans (2 copies) shall be submitted together with the fee set forth in the Inland Wetlands, Watercourses and Conservation Regulations, Town of South Windsor. (See Regulations, Section VII—X) 2. The South Windsor Inland Wetlands, Watercourses and Conservation Regulations should be reviewed with respect to the standards and criteria for application Evaluation. (See Regulations, Sections VII—X) 3. The applicant understands that this application is to be considered complete only when all information and documents required by the Agency have been submitted. The applicant shall also complete the state filing form. A. Applicant's Name: Cameron General Contractors Address: 8040 Eiger Drive, Lincoln, NE 68516 Phone: (home) 402.4-20.3149 (work) (email) blewis@camerongeneralcontractors.com B. Legal owner's name: Evergreen Walk, LLC Address 1109 Rose Lane, Virgina Beach, VA 23451 Phone (home) 402.420.3149 (work) (email) (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. (Included) D. Project Name (if any) Evergreen Crossing Retirement Community Project Address Unit 3, Unit 4, and Unit 8 Hemlock Ave and Buckland Rd, South Windsor 1. Contact Person (if further information is needed) Mark Grocki, VHB (mgrocki@vhb.com) (work) 830-807-4300 (fax) E. The geographical location of the property which is to be affected by the proposed regulated activities -including a description of the land in sufficient detail to allow identification of the property on the Inland Wetland and Watercourse Map. Assessor's map# 27-15 Parcel# Zone Buckland Gateway Development 7 F. Names of all abutting property owners from records in Town Clerk's office. (use separate sheet if necessary) (see attached sheet) G. Have you notified all abutting property owners (from records in Town Clerk's office) by certified letter that an application is pending before the Agency? This will be mailed within 7 days after our Submission K ** (you are required to supply a copy of the letter with the list of the names of the abutters) H. Purpose and description of all proposed regulated activity(s) including amount of disturbance in square feet and types of fill and the time element involved: Construction of a new 68,400 SF footprint building (total area of all floors= 183,682 SF)with parking, landscaping, utilities, and stormwater management features. Approximately 62,600 SF between CT DEEP 40' buffer and 80' regulated upland area line will be disturbed.The 40' CT DEEP buffer will remain unaltered. Types of fill include structural fill in support of proposed parking areas, retaining wallsl, and buildings. Common fill will be used to shape a proposed detention basin. Anticipated timing of construction is to start Spring 2018 and be completed Spring 2019. I. A class A-2 map of the property drawn to 1" =40', showing the area to be developed, extent of the wetlands and watercourses affected, topography, existing and proposed activities and names and locations of adjacent property owners must be submitted. J. Amount of regulated area disturbance (within upland review area or regulated buffers) 62,600 SF between CTDEEP 40' buffer and 80' regulated upland area line. K. Acreage of wetlands and watercourses in regulated areas to be altered: Zero, N/A L. Acreage of wetlands and watercourses to be created: Zero, N/A M. Lineal feet of proposed stream alteration: Zero, N/A N. Total land area of project and percentage, which is wetlands: Total land onsite= 18-acres,Total Land area of project=8-ac (44%),Total acreage of wetlands onsite=7-ac(39%). O. Identify all other permits or approvals that have been issued, applied for, or required with respect to the proposed activity set forth in this application. (These may include but not be limited to, local Planning & Zoning, Zoning Board of Appeals, D.E.P., F.E.M.A., D.O.T., The Army Corps of Engineers, and any other State, Local or Federal Permits.) Local Planning &Zoning Special Exception and Site Plan permit is - - - - - - - - applied for. 8 P. The applicant (or designated representative) hereby attests that a sign will be posted at the following locations), Buckland Road By Designated Rep. Name _VHB- Civil Engineer for Applicant on or before the following date Sunday October 8, 2017 Signature: These signs must be displayed continuously for at least ten (10) days prior to scheduled meeting (see Regulations, Section 7.3a). The applicant is responsible for maintaining the sign during this period. The undersigned hereby applies for the regulated activities listed in paragraph H above, for a Inland Wetlands, Watercourses and Conservation permit for the property described herein and confirms that; 1. Sltc/lie is familiar with the currently effective Inland Wetlands, Watercourses and Conservation Regulations of the Town of South Windsor. 2. She/lie understands that at any fiche 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 it-, 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 hjL�as been issued. t . tv�, �,o„ bA, , �. s 1 3 4t� A- Signature of Owner of Property Date.,- Va-z/ 9' V1 2 Signature of Applicant. f Date --- XZ� 7! ZO1 '7 _ WIIWACCadmintTaornis\[WACC Application 9 IWA/CC APPLICATION REVIEW (to be filled out by the Applicant): Name Evergreen Crossing Retirement Community Application# / 7— 391 I. Ck Fifteen copies of application RECEIVED I Plans filed in triplicate. IX Application fee(s) paid in full. SEN 2 Soy TIVA��S AGENCY II. INLAND VVE COMISSION CONSERVATIONM ® The applicant's name, home and business address, telephone and fax numbers. Ck The owner's name (if applicant is not the owner of the property), home and business addresses, telephone and fax numbers, and written consent to the proposed activity set forth in the application. ® If applicant is not the owner, state interest in the land. Developer/ Contractor for retirement community ® The geographical location of the property which is to be affected by the proposed activity, including a description of the land in sufficient detail to allow identification of the property on the Inland Wetlands and Water Courses Map included the Map#and Parcel#as shown on the Tax Assessor's Map. X Names of current adjacent property owners from records in the Town Assessor's office. ® Proof that all abutting property owners have been notified by certified mail that an application is pending before the Agency. Notification letters to be mailed within 7 days of full Submission.Certified receipts will be provided to the Commission ® Purpose and description of all proposed regulated activity and the time element involved. X Amount and kind of material proposed to be removed, or deposited and/or type of use. ® Acreage of regulated area to be altered(wetlands, watercourses, or regulated buffer) ® Acreage of wetlands and watercourses to be created. ® Lineal feet of proposed stream alteration. ® Total land area of project and percentage, which are wetlands. A Alternatives considered by the applicant and why the proposal to alter the wetlands set forth in the application was chosen. No direct wetland impacts are proposed. Project is part of master plan for Evergreen Walk development III. ® Class A-2 map of the area to be developed, 1" =40', showing the following: ® Designate regulated activities; ® Existing structures and property lines; ® Locations of existing watercourses and wetlands, as defined in section 2.lbb and 2.1cc and boundaries of-regulated areas defined in section 2.1t. Identify the_ reference for watercourses and/or wetlands boundaries as shown on the map. The identifying numbers or other reference systems used in field delineation shall verify the limits as shown on the plans and shall submit a written report describing the findings. If the property does not contain any watercourses or wetlands this shall be noted on the plans. 5 ® Location of 100 year flood lines; ® Elevations by 2 ft contours; ® Natural landscape features, woodland and vegetation; existing and proposed tree line. ® Utilities existing and proposed; CM Layout of existing and proposed drainage systems; ® Layout of existing and proposed sanitary sewers or septic systems; ® Proposed open spaces; ® Proposed limits of clearing. N Proposed areas of change where material is intended to be deposited or removed; ® Proposed grading or any earth movement anticipated; ® Percentage of impervious coverage; X Disposition of stumps; ® Test pits on site; ® Buildable area as defined in section 2.1c; (see waiver provision in section 8.4); Gi Proposed detention basin, if required, sized for 100 year storm; Ik Proposed soil erosion prevention, sediment control and other soil conservation treatments to be taken showing any proposed sediment basin, diversion dikes, indicating the timing of stripping of topsoil, when topsoil shall be stripped, where topsoil shall be stored and for how long, and what method stabilization shall be used, and be in complete compliance with the guidelines expressly set forth in Public Act 83-388, as amended, "An Act Concerning Soil Erosion and Sediment Control" which amends sections 8-2, 8-13d, and 8-25 of the General Statutes of Connecticut. ® Projected changes in velocity, volume or course of water flow or in the water table and their effects. ® Soils information —consistent with Natural Resources Conservation Service categories as determined in the field by a qualified soil scientist. ® Biological and Wetland information — providing a functional analysis of any impacted wetlands, watercourses, an analysis of the probable effect of the proposed activity upon the pland and animal ecosystem. IV. ❑ Additional Comments: 6 Evergreen Walk,LLC 1109 Rose Lane RECEIVED Virginia Beach,VA 23451 9I2���o1� SEP �9 2011 South Windsor INLAND WETLANDS AGENCY CONSERVATION COMMISSION To Wham it may concern, The proposed Senior independent living Facility by Cameron General Contractors (applicant), located at Unit 3 in Evergreen Walk,South Windsor,CT Will require disturbances within SUft of a Wetiand to accommodate the proposed development, herein referred to as the"proposed regulated activity" Evergreen Walk,LLC, the Owner of the property referred to above, hereby authorizes Cameron General Contractors to undertake the proposed regulated activity associate with-the development of a Senior independent Living Facility. Sincerely, Evergreen Walk, LLC By John Finguerra, Its Managing Member � , I, By Laurence P. RubinoW, His Attorney in Fart [Date] (Abutter's Name) (Address) REC�w�� CERTIFIED MAIL SOGS D t�CCOMM Sg ON ONSERVATtOt4 Dear Property Owner: Re: Evergreen Crossing Retirement Community Unit 3, Unit 4, and-Unit 8, Hemlock Drive,South Windsor,CT In accordance with Section 7.3b of the "Town of South Windsor Inland Wetlands,Watercourses, and Conservation Regulations",you are hereby notified 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. You may also submit written comments regarding the application prior to the hearing if you so desire. For furth-er-information regarding the specific date this application will be heard please contact Jeff Folger, Environmental Planner/Conservation Officer, Planning Department,860-644-2511,ext.329. Sincerely, Cameron General Contractors 8040 Eiger Drive Lincoln, NE 68516 402.420.3149 9/28/2017 Print Map Town of South Windsor n „° � Geographic Information System (GIS) o • s k,dSOR Co��4' Date Printed:9/28/2017 . tc. P . ` N t? AVE Em � ti= N MAP DISCLAIMER-NOTICE OF LIABILITY Approximate Scale: 1 inch=1000 ft This map is for assessment purposes only.It is not for legal description W E or conveyances.All information is subject to verification by any user. The Town of South Windsor and its mapping contractors assume no legal responsibility for the information contained-herein. S hftp://southwindsor.mapxpress.nettags_map/ 1/1 TOWN OF SOUTH WINDSOR, CONNECTICUT Parcel ID Site Address Owner Name 15300070 70 BUCKLAND ROAD 95 CT LLC& INTERNATIONAL SAMARKAND HOTEL 15300274 274 BUCKLAND ROAD GROUP LLC 27600152 152 DEMING STREET SOUTH WINDSOR REALTY CO LLC 20400580 580 CLARK STREET SMITH SHIRLEY W 27600043 43 DEMING STREET SOUCY ARTHUR L& KATE C 15300206 206 BUCKLAND ROAD ROUNSEVILLE MARRION &-ROY TRUSTEES 15300015 15 BUCKLAND ROAD ONE BUCKLAND-CENTER LLC 204OR009 R009 CLARK STREET CLARK TREE FARM LLC 20400716 716 CLARK STREET 859 CLARK ST LLC 204OR014 R014 CLARK STREET WALDRON STANLEY 27600075 75 DEMING STREET WISNESKI DAVID A& NATHALIE S 83700302 302 SMITH STREET -WHITE LORRAINE M & 15300116 116 BUCKLAND ROAD BUCKLAND ROAD ASSOCIATES-L L C 15300395 395 BUCKLAND ROAD WOODCOCK JOH-N J III &CARLA C 15300179 179 BUCKLAND ROAD EVERGREEN WALK LLC 15300079 79 BUCKLAND ROAD SOUTF[WINDSOR TOWN OF 15300325 325 BUCKLAND ROAD SOUTH WINDSOR-TOWN OF 15300095 95 BUCKLAND ROAD SOUTH WINDSOR TOWN OF 15300296 296 BUCKLAND ROAD MESSIAH EVANGELICAL 15300300 300 BUCKLAND ROAD MESSIAH EVANGELICAL 49390601 601 KEBALO LANE GOWING-ROBERTA J 49390602 602 KEBALO LANE GRAICERSTEIN RITA 49390603 603 KEBALO LANE ANDREWS FREDERICK C 49390604 604 KEBALO LANE TAMARKIN KARIN W 49390000 KEBALO LANE CURRENT RESIDENT 27600112 112 DEMING STREET CURRENT RESIDENT 31300101 101 EVERGREEN WAY EVERGREEN WALK LIFESTYLE CENTER LLC 31300201 201 EVERGREEN WAY EVERGREEN WALK LIFESTYLE CENTER LLC 31300301 301 EVERGREEN WAY EVERGREEN WALK LIFESTYLE CENTER LLC 31300401 401 EVERGREEN WAY EVERGREEN WALK LIFESTYLE CENTER LLC 31300501 501 EVERGREEN WAY EVERGREEN WALK LIFESTYLE CENTER LLC 31300801 801 EVERGREEN WAY EVERGREEN WALK LIFESTYLE CENTER LLC 31300800 800 EVERGREEN WAY EVERGREEN WALK LIFESTYLE CENTER LLC 31300500 500 EVERGREEN WAY EVERGREEN WALK LIFESTYLE CENTER LLC 31300400 400 EVERGREEN WAY EVERGREEN WALK LIFESTYLE CENTER LLC 31300300 300 EVERGREEN WAY EVERGREEN WALK LIFESTYLE CENTER LLC 31300200 200 EVERGREEN WAY EVERGREEN WALK LIFESTYLE CENTER LLC 31300100 100 EVERGREEN WAY EVERGREEN WALK LIFESTYLE CENTER LLC 17850100 100 CEDAR AVENUE REALTY INCOME PROPERTIES 21 LLC 89302800 2800 TAMARACK AVENUE EVERGREEN MEDICAL ASSOCIATES LLC 89302400 2400 TAMARACK AVENUE EVERGREEN MEDICAL ASSOCIATES 11 LLC 83700244 244 SMITH STREET BRIN PETER J &JENNIFER J 49390000 KEBALO LANE CURRENT RESIDENT 31300095 95 EVERGREEN WAY CURRENT RESIDENT 17850100 100 CEDAR AVENUE CURRENT RESIDENT - 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'"' sy at' # J 1 r r '9' ,; t s17 `r ri s�w.t"aC n,Lr }�1" "K 4 c "� f t '_ a x f7 }, tz­ - pf d��?��##..`� -'h�� .r{r � t .i� j`�; WETLAND ASSESSMENT REPORT Evergreen Crossing Retirement Community Unit 3, Unit 4, and Unit 8 Buckland Roa-d South Wrindsor, Connecticut ► F.r EE ' PREPARED FOR __ Shp Cameron General Contractors/Resort Lifestyle Communities ,...� ' CONSERVATipN C 8040 Eiger Dr Lincoln, NE 68516 PREPARED BY ' s*fa ` �rhb. ' 100 Great Meadow Road Suite 200 Wethersfield, CT 06109 ' 860.807.4388 September 28, 2017 406b ' Table of Contents 1 1. Introduction.................................................................................................................................................1 2. Site Description &Setting.........................................................................................................................1 2.1 Landscape Ecological Setting......................................................................................................................................2 ' 2.2 Geology and Soils............................................................................................................................................................3 2.2.1 Upland Soils......................................................................................................................................................3 ' 2.2. Wetland Soils....................................................................................................................................................4 2.2.3 Site Drainage. .. ' 3. Wetland Ecological Communities and Assessment...............................................................................4 4. Proposed Activities and Impacts..............................................................................................................6 ' S. Summary......................................................................................................................................................8 ' 6. References....................................................................................................................................................9 7. Preparer........................................................................................................................................................9 ' List of Figures ' Figure No. Description Page ' Figure 1 Site Location-Aerial.....................................................................................................2 Figure2 Wetlands Quality Map................................................................................................5 ' \\vhblprojlWethersfield142263.001reportslWetlandReportl42263.00Wetland Assessment Report 9-28-2017.docx ' ii Table of Contents hb 1 1 1 1. Introduction 1 The project includes the construction of an approximately±68,400 SF (footprint) Senior Independent Living Facility building,landscaping improvements, parking and garages, retaining walls, a stormwater management system, and utility 1 improvements to support the use. The Project Site is a parcel of land labeled as "Unit 3" within the overall Evergreen Walk development area,off Buckland Road in South Windsor, CT(west of the Old Navy retail store). Tamarac Avenue is proposed 1 to be extended through the site as part of the development, however will terminate prior to reaching the wetland/watercourse corridor crossing. Any future 1 crossing of Tamarac Avenue over the wetlands is not part of this application for site development. This Wetland Assessment Report has been prepared to evaluate the effects of the 1 proposed development on the adjacent inland wetlands and watercourses. The project does include any direct temporary or permanent impacts to inland wetlands or watercourses. Indirect impacts have been avoided to the greatest extent 1 practicable and mitigated through Best Management Practices (BMPs) as well as having employed the states policy of: 1.Avoidance, 2. Minimization of loss, and 3. Compensation/Mitigation. 1 The project proposes construction of the site development activities within the Town of South Windsor's Inland Wetland/Watercourse and Conservation Regulations 1 (October 18, 2000) 80-foot Upland Review Area from wetlands. Specifically,the activities will be no closer than non-encroachment 40-feet buffer to the wetlands, with the exception of the proximity of Tamarac Avenue at its terminus.This location 1 is not within a non-encroachment buffer however is within the Upland Review Area the wetland. 1 2. Site Description & Setting 1 Unit 3 includes approximately ±8-acres of developable land within the overall approximate ±18-acres.This is partly due to wetlands that encompass the project 1 site on 3-sides (South,West and North). 1 1 1 Wetland Assessent Report s hb 1 Figure 1 Site Location-Aerial:Source Bing Maps©2017 Microsoft(not to scale) 1 1 1 1 2.1 Landscape Ecological Setting The project site is located within a relatively heterogenous landscape mosaic 1 composed of a historical agricultural lands, commercial/retail, residential, and a mixture of local and state roads. Habitat types within the landscape include old growth fields, hedgerows,fragmented forested (uplands and wetlands), and 1 developed lands. Vegetation within these habitats include both non-native invasive and native species and include primarily meadow grasses, deciduous hardwoods and 1 shrub layers all within very abrupt edges (i.e. ecotones). The majority of the area surrounding the site is forested wetlands fragmented by agricultural areas. The developed lands and open fields around the project site 1 increase the edge zones,which are favorable habitats for area tolerant(edge or generalist) species. The degree to which habitats are fragmented influences area sensitive (forest interior) species from residing within these habitats. Research ' suggests that most area sensitive species require a minimum of at least 100 hectares (247 acres) of contiguous forested habitat. Based on the fragmented condition of the project site and surrounding landscape, it is unlikely that area sensitive species 1 inhabit the project site or nearby surrounding habitats, however moderate area sensitive species may occur in the landscape, however, not likely within the open fields on-site. Some moderate area sensitive forest bird species include broad- winged hawk, pileated woodpecker,flycatcher, ovenbird,tanagers,vireo, nuthatch, wren, and some warbler varieties (Herkert, 1993). Low area sensitive bird species that have either been observed or have the potential to occur within habitats of the site include some of the typical generalists, cowbird, red-bellied woodpecker, downy woodpecker, blue jay, cardinal, grosbeak, oriole, catbird, grackle,warblers, swallows, 1 chickadee, and robin. 1 2 Wetland Assessent Report hb 1 2.2 Geology and Soils ' The soils were mapped by others from previous delineations and studies. Based on the Generalized Bedrock Geologic Map of Connecticut (CT DEEP, 1990),the site is 1 located within the lapetos (Oceanic) terrane underlain with bedrock consisting of gneiss, schist and quartzite. 1 2.2.1 Upland Soils The upland soils mapped by NRCS over the Unit 3 site includes Elmridge fine sandy 1 loam, 3 to 8 percent slopes, and Haven and Enfield soils, 3 to 8 percent slopes. Elmridge fine sandy loam 1 The Elmridge series consists of very deep, moderately well drained soils formed in loamy over clayey sediments.They are nearly level to moderately steep soils on 1 glacial lacustrine and marine terraces, and on lake plains.The soils formed in loamy and clayey glacial lacustrine and marine deposits. 1 Haven and Enfield soils The Enfield and Haven series consists of very deep,well-drained loamy soils formed 1 in a silty mantle overlying glacial outwash. Enfield soils are nearly level to sloping soils on terraces,outwash plains and water-sorted moraine deposits. Slopes range from 0 to 15 percent, but are generally less than 8 percent.The soils formed in a silty 1 mantle over stratified sandy and gravelly fluvial materials derived from a variety of acidic rocks. 2.2.2 Wetland Soils The wetland soils consist of Saco silt loam, and Scitico, Shaker, and Maybid soils. Saco silt loam Saco soils are nearly level soils on flood plains, along rivers and streams.They are in depressed areas. Slope ranges from 0 to 2 percent.The soils formed in recent silty alluvium derived mostly from granite, gneiss, schist, shale and sandstone. In places ' water is ponded on the surface from late fall through early spring. Permeability is moderate in the silty layers and rapid or very rapid in the underlying sandy materials. These soils flood in the spring and after periods of heavy rainfall. 1 Scitico, Shaker,and Maybid soils The Scitico, Shaker, and Maybid soils consist of very deep, poorly drained soils 1 formed in silty and clayey sediments.They are nearly level to very gently sloping soils-in-low-lying-positions of glaciolacustr-ine—and-mar-ine—ter-races.-Slope-ranges—from 0 to 5 percent and the thickness of the solum ranges from 20 to 45 inches. 1 1 3 Wetland Assessent Report 1 hb Rock fragments are mostly fine gravel and range from 0 to 3 percent by volume ' throughout. 2.2.3 Site Drainage The existing Site is generally comprised of old field habitat with forested wetland communities. Under existing conditions, onsite stormwater runoff flows overland generally in an east-to-west direction towards the onsite wetlands. There is a watercourse located in the northern portion of the site.The northerly portion of the ' site drains in a northerly direction into this watercourse. Ultimately,the flows continue to the onsite wetland system. 3.Wetland Ecological Communities and Assessment Wetland classifications used to identify the type of wetland(s) occurring on the Site 1 are based on guidance from the U.S. Fish and Wildlife Service (USFWS) (Cowardin et.al. 1979). Biophysical elements such as a wetland's landscape position, geology, hydrology, 1 substrate, and vegetation determine the wetland functions and to what capacity they are performed. Due to the differing biophysical characteristics between on-site 1 wetlands,the functions the wetlands provide and the capacity to perform those functions vary. To better understand these differences, a description of the assessed wetland functional values was completed based on the United States Army Corps of 1 Engineers (ACOE) Highway Methodology Workbook(1993) and its supplement workbook. This method requires a description of each of the wetland communities as well as indicating the functions they provide. The thirteen (13)functions and ' values that have been recognized include: Groundwater Recharge/Discharge, . Groundwater Sediment/Shoreline Recharge/Discharge Stabilization Floodflow Alteration (Storage& Wildlife Habitat Desynchronization) Fish and Shellfish 'J' Recreation Habitat /ii` Consumptive&Non- �/, Consumptive) Sediment/Toxicant Retention Educational/Scientific i 1 Value Nutrient Removal Uniqueness/Heritage ® Retention/Transformation � . Visual Quality/Aesthetics Product Export(Nutrient) 1 ES Endangered Species ' 4 Wetland Assessent Report t 1 hb Floodflow Alteration, Fish and Shellfish Habitat, Sediment/Toxicant Retention, Nutrient Removal/Retention/Transformation, Production Export, Sediment/Shoreline Stabilization,Wildlife Habitat, Recreation, Education/Scientific Value, ' Uniqueness/Heritage,Visual Quality/Aesthetics, and Endangered Species. Presented below is the table used in this process to graphically depict the functional values. Wetland resource areas on the Site include an approximate 7-acre wetland system located within the southern,western and northern portions of the property. There is an established 40ft non-encroachment buffer offset from the wetland line established by the Connecticut Department of Environmental and Energy Protection (CT DEEP) and depicted on VHB's site development plans.The development does not propose any improvements beyond this 40ft buffer limit. There is a watercourse located in the northern portion of the site. The watercourse will remain unaltered other than a new bridge crossing for the Tamarac Avenue extension. The wetlands on site have been assessed utilizing similar function value criteria by Penelope Sharp and Richard Snarski being presented graphically on a figure entitled, "Developable Area Plan," prepared by Fuss and O'Neill, Inc., dated Aug, 15, 2006 (Figure 2). The Wetlands Quality were evaluated as being one of the following categories: High, Medium, Low-Medium, and Low. Figure 2 below is a snapshot from the Fuss and O'Neill, Inc. plan noted above. ' Figure 2 Wetlands Quality Map prepared by Fuss and O'Neill,Inc.,dated Aug, 15,2006 _ LOW i M(ri ,o Wetlands encompassing Site ~! _ LOW—MEDIUM _ MEDIUM f HIGH \ wimmos \ X r°� \ \ t DEVELOPABLE P,t�E�Aj ' \ 463 650 sft I 10;3 ccr�s Wetlands encompassing Site U1II7S F DI.PwNi (TYP. � U _- IST ,r 93 CT 570 a UTILITY AND 1 y 0 0 �- RAINAGE CROSSING 5 Wetland Assessent Report thb 1 The narrow watercourse to the north and south of Unit 3 flows onto the site from the east off-of Buckland Street. Portions of this stream have been piped in the past. The remaining portions of the wetland community including a sloping wetland on the north and south side of Unit 3 and relatively level/flat topography to the west. The cover type within this watercourse community includes some patches of deciduous forested species as well as other areas dominated by shrubs. Thus,the wetland includes Palustrine Deciduously Forested (USFWS Class: PFO) and Palustrine Scrub/Shrub habitat (USFWS Class: PSS).Tree species include red maples (Ater rubrum), cottonwoods (Populus deltoids), oaks (Quercus rubrum and Quercus palustris), and willow(Solix nigra). Shrub species include the invasive multiflora rose (Rosa multiflora), and native gray dogwood (Corpus racemoso), spicebush (Lindera benzoin) and pussy willow(Salix discolor). Species present such as jewelweed (Impatiens capensis), sensitive fern (Onoclea sensibilis), skunk cabbage (Symplocarpus ' foetidus) and others comprise the herbaceous layer. The primary function of these wetlands is the capacity to support wildlife habitat with the diversity of vegetation species providing food, cover and nesting sites. Due ' to the morphology of the wetland and watercourse system, it has a limited capacity to store and desynchronize stormwater flood flows. This is evident from the watercourse and its erosive nature.The only area that would contribute to this function would be the westerly portion of the forested wetland that maintains a relatively flat topography on the landscape with more organic soils that can contribute to floodflow alteration and groundwater discharge/recharge, and capacity for nutrient removal. Fish and shellfish habitat does not exist. Other functions such as uniqueness,threatened or endangered species, and recreation are ' not provided by this wetland community. We concur with the quality of wetlands assessed in Figure 2 for these wetlands. The wetlands on the west side were considered High quality,the two slope wetlands on the north and south are Medium quality and the narrow watercourse also on the north and south were evaluated as being low quality due to the erosive action of stormwater and lack of quality habitat. ' 4. Proposed Activities and Impacts The proposed senior living center and associated infrastructure, retaining walls and parking are proposed to be outside of all wetlands and watercourse boundaries. Resulting in no proposed direct impacts to wetlands or watercourses. The project includes stormwater drainage measures to treat, detain and filter the ' - -- — — stormwater runoff through several-measure—s-and-was-designed-using the 2004 ---- ----- - Connecticut Stormwater Quality Guidelines and the Town of South Windsor 6 Wetland Assessent Report h b 1 stormwater regulations. VHB prepared a detailed Stormwater Management Report 1 that is part of the Inland Wetland Application for this project under a separate cover, dated September 2017. 1 The stormwater management measures include structural and non-structural methods, including subsurface stormwater infiltration system and a planted wet- detention basin.As noted in VHB stormwater report, under proposed conditions,the ' stormwater runoff from the site will be collected and treated by a series of BMP's including 4ft deep sump catch basins and hooded outlets, hydrodynamic separator water quality units, an Extended Detention Shallow Wetland System ("detention basin"), and two (2) subsurface infiltration systems.The proposed stormwater management system has been designed to treat the one inch Water Quality Volume as well as provide for pretreatment prior to discharging stormwater. The soils on the site have a relative poor drainage capacity,thus infiltration is not effective. Based on the significant cut and filling of the site,with the need to fill up 1 to 20-feet in some areas,the subsurface infiltration system will be within select fill that will provide the necessary infiltration to effectively manage the stormwater from that system through the spread of the flow and infiltration through the select fill ' soils that will have a higher capacity for multidirectional flow of the stormwater collected.The stormwater management system has been designed to match peak flow from existing to proposed conditions, as well as reducing the volume from the development. The stormwater detention basin is located at southwesterly portion of the property. ' The detention basin is designed as an engineered stormwater wetland to provide for water quality. The key component of this engineered wetland is to maintain a permanent pool as well as provide specific wetland vegetation. Peak flows are ' proposed to be reduced when compared to existing conditions.The detention basin will consist of"cells" that comprise a low-marsh, high-marsh, slope embankments, and a pre-treatment sediment forebay. The low-marsh area is a serpentine area 1 throughout the basin, and will be 1-2 feet below the high-marsh area.Wetland plants that tolerate intermittent flooding and dry periods are proposed in the low and high-marsh areas. Some benefit of the engineered wetland includes maximizing 1 efficiency at removing both particulate and soluble pollutants, providing aesthetic benefits, providing wildlife habitat, and providing the ability to attenuate peak runoff from stormwater events. ' The construction of the proposed site development activities is proposed within the current old field habitat of the site within the 80-feet Upland Review Area but 1 outside of the 40-feet non-encroachment buffer of the adjacent wetland. The exception is the proximity of Tamarac Avenue at its terminus.This location is not within a non-encroachment buffer however is within the Upland Review Area the poor-quality wetland/watercourse. The stormwater basin will provide additional habitat that currently does not exist on 1 the site and provide numerous native plantings in and on the slopes of the basin. 1 7 Wetland Assessent Report 1 �� 1 �vhb This basin will be located upgradient and easterly of the High quality portion of the onsite wetland system.With the diversity of habitat provided by the planted basin including the treated and filtered stormwater,this basin creates a beneficial habitat for local wildlife. It is critical that the proposed basin be constructed and maintained 1 utilizing the proposed soil erosion and sedimentation control measures (i.e., BMPs). Turbidity of stormwater runoff during construction can be a concern without 1 appropriate BMP measures to manage the migration of sediment. Monitoring of all site activities during construction is another critical component due to the nature of the silt loam soils and the fact that the wetlands encompass the site development on Unit 3.The implementation of erosion control blankets, as proposed will assist in managing these soils and assist in more expedient stabilization of the disturbed 1 areas due to construction. Effective installation and necessary ongoing maintenance of the soil erosion and sediment control measures (i.e., silt fence, hay bales, erosion control blanket)will help to minimize and avoid direct and indirect impacts to adjacent wetlands and watercourse. ' 5. Summary The critical factors that can have the greatest potential for adverse impacts to the adjacent wetlands and watercourse on Unit 3 are the construction activities and temporary disturbance of soils in order to construct the facility and associated infrastructure and parking. Effective management and maintenance of BMPs during construction and until areas are stabilized is necessary to avoid the potential for adverse impacts to the wetlands and watercourses. ' Wildlife currently using the site is not expected to be significantly affected.The generalist avian and small mammal species are still expected to utilize the site for foraging, nesting and cover, as well as the adjacent upland and wetlands. The ' structures and impervious areas will decrease the habitat available that is present currently, however the landscaping plans will assist in stabilizing and providing typical habitat on development sites such as the proposal.The slopes of the basin ' will be planted with New England Wetland Plants Erosion Control/Restoration seed mix for detention basins and moist sites at a rate of 35lbs/acre. A maintenance accessway is provided along the top of the basin berm. A consideration for planting ' the side slopes of the basin was evaluated, however by providing a seed mix in this area appears to better mimic current conditions. ' The stormwater management measures have been comprehensively analyzed and evaluated with the need to use select fill material for infiltration of the subsurface systems, the installation of deep sump catch basins(4ft)with hooded outlets, hydrodynamic separator units, and the proposed Extended Detention Basin with a -high-low marsh-habitat-and-pre-treatment for-ebay.—Both volume-and-rate-of-runoff - --are proposed to be reduced from the site to minimize and avoid the potential for Idownstream impacts due to an increase in runoff. ' 8 Wetland Assessent Report '' hb Finally,the activities will be no closer than non-encroachment 40-feet buffer to the wetlands,with the exception of the proximity of Tamarac Avenue at its terminus. This location is not within a non-encroachment buffer however is within the Upland i Review Area the wetland. The project has avoided direct impacts to the wetlands and watercourse and minimizes and avoids indirect impacts through the implementation and maintenance of BMPs during construction and until the areas are stabilized. 6. References 1. Cowardin, L.M.,V. Carter, F.C.Golet, E.T. LaRoe (1979).Classification of Wetlands and Deepwater Habitats of the United States. US Government Printing Office. Washington D.C. GPO 024-010-00524-6.103 pp. 2. Herkert,James R., Robert E Szafoni,Vernon M. Kleen, and John E.Schwegman. 1993. Habitat Establishment, enhancement and management for forest and grassland birds in Illinois. Division of Natural Heritage, Illinois Department of Conservation, Natural Heritage Technical Publication#1, Springfield, Illinois. Northern Prairie Wildlife Research Center Online. 3. Rodgers,J., 1985, Bedrock Geological Map of Connecticut.The Connecticut Geological and Natural History Survey, Connecticut Department of Environmental Protection, 1990. i 4. USACOE (1993).The Highway Methodology Workbook Supplement. US Army Corps of Engineers New England Division. NEDEP. 32 pp. 5. United States Department of Agriculture (USDA) Natural Resources Conservation Service (NRCS)soil descriptions. Internet site: http://soils.usda.gov/technical/classification/osd/index.html). 7. Preparer This report was prepared by Jeffrey Shamas of VHB and maintains certifications as an Ecologist, Professional Wetland Scientist and a Soil Scientist with 27 years of professional experience. 9 Wetland Assessent Report \\vhb\prof\Wethersfield\42263.00\tech\Hydro\42263.00 PR Conditions.dwg VO 4f,RNoe Legend ' 108 g SYMBOLS q i X DESIGN POINT k XDESIGNATIONDRAINAGE AREA A 1 P �. W X POND �-- _ LINETYPES DRAINAGE AREA T 28B ? n BOUNDARY TIME OF CONCENTRATION 32B � . SOIL TYPE BOUNDARY 2P I — — 100 BUFFER ZONE 4_lla 4-219 WETLAND BOUNDARY SCS SOIL CLASSIFICATIONS 9 SCITICO, SHAKER, -AND / ......... .. ..-_ MAYBID SOILS ELMRIDGE FINE SANDY LOAM HAVEN -AND ENFIELD 32 ` SOILS 1 i SACO SILT LOAM q � l Ec ,9 y I - s 4 ilb Proposed Drainage Conditions Figure 3 Proposed Retirement Community Evergreen Walk 5/26/2017 0 50 100 Feet South Windsor, Connecticut tO*N SF4 co FTown a-.PS-aadi, ?d 9 . R wC, 1540 SULLIVAN AVENUE SOUTH WINDSOR, CT 06074 f�OsOR•c°� TELEPHONE (860) 644-2511 CERTIFIED MAIL 7016 0910 0000 9861 0585 October 19, 2017 Bob Lewis Cameron General Contractors 8040 Eiger Drive Lincoln, NE 68516 RE: Appl. #17-38P— Evergreen Crossing Retirement Community- 151 Buckland Road Dear Mr. Lewis: At the October 18, 2017 regular meeting, the Inland Wetlands Agency/Conservation Commission approved Appl. 17-38P— Evergreen Crossing, 151 Buckland Road—Inland Wetlands/Conservation Commission application for approval of a 130 unit senior independent living facility, parking lot, and associated utilities on 18 acres on property located west of Buckland Road, Gateway Development(GD) zone, with the following conditions: 1. The final approved copy of the entire set of plans and this letter reproduced thereon must be submitted to the Planning Department. This must be completed within 65 days of approval prior to any construction activity on the site. Plans submitted to Planning & Zoning Commission shall be considered having met this requirement. 2. The 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 October 18, 2022. It is the landowner(s)/applicant(s) responsibility to track expiration dates and notify the Commission of a renewal request at least 65 days prior to expiration. 4. A bond shall be collected in the amount of$30,000 to ensure proper placement and maintenance of erosion and sediment controls; a bond shall be collected in the amount of $25,000 for the construction and maintenance of the stormwater system during construction;and a bond shall be collected in the amount of $15,000 for the proper establishment of the water quality basin plantings, to be held for three growing seasons. 5. A detailed erosion and sediment plan, including grading, shall be placed on the final plans after review and approval by town staff. 6. Retaining wall construction details and sequencing shall be placed on the final plans after review and approval by town staff. 7. The stormwater maintenance plan shall be placed on the final plans. 8. Detailed construction sequencing for existing soil stockpile removal and site filling and grading shall be placed on the final plans after review and approval by town staff. 9. Comments from the memo dated October 11, 2017 from Jeffrey H. Folger to Mark Grocki, must be incorporated into the site plan and be shown on the final plan. Page 2 Evergreen Crossing Retirement Community 10. All approvals required must be obtained and submitted prior to any activity on the site. 11. A contact person shall be identified on the plans. Very truly yours, ` Elizabeth Warren, Chairperson Inlands Wetlands Agency/Conservation Commission EW/dt cc: Director of Planning Chief Building Official Mark Grocki, VHB Associates, 100 Great Meadow Road,Wethersfield, CT 06109 Postal CERTIFIEDo RECEIPT `n Domestic Mail• nly 43 C3 _p Certified Mail Fee ca $ ❑ es a propateEr Extra Services& mtee s � Return Recalipt#mMwM $ 0 ❑%tum Recelpt(electronic) S Postmark C3 ❑Certified Mail Restricted Delivery $ Here ❑Ault Signature Ray $ ❑ AdaR siggnature Restricteicto d Delivery$ o Postage r-1 $ Er Total Postage and Fees C3 $ _ LD ..d Sent To h �0� 1 c;iy,-star--?z'�►�lc.C)I►'1 /��--------S��-------------------