Loading...
HomeMy WebLinkAboutSite Plan - Conservation (69) MC-IVED TOWN OF SOUTH WINDSOR FEB 1 0 2003 :30uCt1 W8it3S0i INLAND h�ETLANU5 AGENCY'CONSERVATION COMI,11SS10N INLAND WETLANDS, WATERCOURSES AND CONSERVATION APPLICATION Application# Date Received J' 1g I DJ 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: RSK-Kellco, Inc. , c/o Scott Kelley Address: 1744 Ellington Road, South Windsor, CT 06074 Phone: (home) (work) 644-8761 (fax) 644-5650 B. Legal owner's name: Robert W. Skinner, Jr. Address 40 Buckley Road, Salem, CT 06420 Phone (homeX 860) 204-9066 (work) (fax) (List additional owners, addresses, and phone numbers on back of application) C. If the applicant is not the owner of the subject property; a letter by the owner(s) authorizing the proposed regulated activity set forth in the application must accompany this form and will be part of the application. D. Project Name (if any) Podunk Ridqe .SRD 1. Contact Person(if further information is needed) Peter R. DeMallie, Design Professionals, Inoork) 291-8755 (fax) 291-8757 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 # 35 Parcel# 68 Zone A-20 7 pr 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? Yes ® ** (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: Excavate & install 58+/- 1 f!v15" RCP with concrete flard end & associated rip rap energy dissipator and drainage manhole (approx. 2,000 s.f. upland review area) ; grading disturbance only as-loci ated with home r'nngi-ruct-inn (ap rax 21,000 G f ui2l and review area) ; to be completed within 1 or 2 construction seasons. I. A class A-2 map of the property drawn to I"=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 and types of fill(including wetlands and regulated buffers). Upland review area disturbance (4,000 sq. ft.) . See above for types of fill. K. Acreage of wetlands and watercourses in regulated areas to be altered: 0 L. Acreage of wetlands and watercourses to be created: 0 M. Lineal feet of proposed stream alteration: 0 N. Total land area of project and percentage,which is wetlands: 1 2.54 acres total (22.3% wetlands) 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.) p7r; w cA; DEp; DoT P. The applicant (or designated representative) hereby attests that a sign will be posted at the following location(s) on R1 1 i nco--nn Roar] By Design Professional Name Peter R. DeMallie on or before the following date as di rect-Pd by Town Staff 8 s l f' 9 Signature: % . , 4IA44 f These signs must be displayed continuously for at least ten (10) days prior to scheduled meeting (see Regulations, Section 7.3a) The undersigned hereby applies for the regulated activities listed in paragraph H above, for a Inland Wetlands, Watercourses and Conservation permit for the property described herein and confirms that: 1. She/he is familiar with the currently effective Inland Wetlands, Watercourses and Conservation Regulations of the Town of South Windsor. 2. She/he understands that at any time during the review period, the Agency may require the applicant to provide more information about the wetlands and/or watercourses in question and/or any proposed activity. 3. All information submitted in the application for review shall be considered factual, or in the case of anticipated activity, binding. A knowing failure of the applicant or any of her/his agents to provide correct information, or performance exceeding the levels of activity anticipated, shall be sufficient grounds for revocation of any permit under these regulations. 4. By making this application, the applicant gives permission to the Inland Wetlands, Watercourses and Conservation Commission members and/or its representative to enter the portions of the premises which are subject of the application for the purpose of inspection and investigation and otherwise evaluating the merits of the plication both before and after a final decision has been issued. Signature of Owner of Property I/ Date 2/7/02 12 Sit: of Applicant Date 2/7/02 9 o . a s Town aps-oaA Vi�� 1540 SULLIVAN AVENUE • SOUTH WINDSOR, CONN. 06074 smt.co�`�w AREA CODE 860/644-2511 March 21, 2003 Certified#70001670000775520283 Design Professionals, Inc. 165 South Satellite Road South Windsor, CT 06074 RE: Appl. #03-08P—Podunk Ridge,westerly of Ellington Road and northerly of Ordway Drive,A-20 Residential zone Dear Mr. Semprebon: At the March 19, 2003 regular meeting, the Inland Wetlands Agency/Conservation Commission approved application#03-08P—Podunk Ridge—Ellington Road-Inland Wetland/Conservation Commission application for the construction of a 21-unit Senior Residence Development, community center, stormwater structures,parking and related improvements on property located westerly of Ellington road and northerly of Ordway Drive,A-20 Residential zone. This approval is subject to the following conditions: 1. One blueprint copy of the entire set of plans and this letter reproduced thereon, must be submitted to this Commission. 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 application 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 March 19, 2008. 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. All approvals required must be obtained and submitted prior to any activity on the site. 5. A contact person shall be identified on the plans. 6. A conservation easement be incorporated along the top of the slope as shown in the revised plans submitted March 17, 2003. PF Podunk Ridge March 21, 2003 Page 2 7. Yard waste and leaves or grass clippings are not to be deposited on the adjacent slopes. 8. Relocation of the storm drainage and walking path behind units 4, 5 and 6 per Town Engineer's memo dated March 19, 2003. 9. Include deeper drop inlet manholes to reduce the slopes of the storm drainage pipes down the hill and adjust pipe sizes per Town Engineer's memo dated March 19, 2003. 10. We recommend a bond in the amount of$10,000 be submitted to the Planning &Zoning Commission to ensure compliance with the erosion and sediment control measures and the maintenance program. 11. We recommend a bond in the amount of$10,000 be submitted to the Planning&Zoning Commission to ensure installation of stormwater structures. Very truly yours, INLAND WETLANDS AGENCY/ CONSERVATION COMMISSION n �Y E iza t A. Warren, Chairperson EW:dr cc: Chief Building Official Town Engineer MEMORANDUM RECEP�7 ) To: Marcia Banach, Director of Planning MAR 1 = r'0,03 Jeff Folger, Environmental Planner south ,,,r INLAND WETt aN�;,�CENCY From: Jeffrey B. Doolittle, P.E., Town Engineer C0NSERVATIDNCUMMISSION Date: 3/19/03 RE: App 03-08P, Podunk Ridge SRD Application I have reviewed the revised Site Plan for the Podunk Ridge SRD dated March 6, 2003 and have the following comments: 1. Relocate the storm drainage and walking path behind units 4, 5, and 6 where they go down the hill. This is to minimize disturbance of this hill and allow for a better outlet location. From PCB #12 the storm drainage line should go south west to another type"CU CB behind unit 5 and then turn west and go down the old path between the 36" trees to a MH before the 36" Beech tree. Then the storm drainage line will turn north west for a short distance to another MH near the existing PMH #2. Then the storm drainage line will turn north to a last MH and outlet near Wetlands Flag #30. The attached plan shows a sketch of this route. The walking path should follow this route to the proposed gazebo location. There need to be several water bars across the walking path to shed the water off the path and down the hill. 2. Include deeper drop inlet manholes to reduce the slopes of the storm drainage pipes down the hill. According to the Town Drainage Design Criteria, class V RCP is to be used where the pipe slope is 10%or greater. 3. The last length of pipe before the outlet should be revised to lower the velocity as much as possible. Suggest ZV corrugated plastic pipe with a slope of 0.7%. This pipe should be about 20 feet long to be sure the velocity is reduced before the outlet. 4. Provide revised drainage calculations according to the relocated drainage lines. 5. We recognize the grading to direct water away from Ellington Road, however, where will this water go? Add a yard drains in front of and to the east of units 1 and 21 so water from Ellington Road flows into the storm drainage system instead of across the yards or driveways of the units. 6. Regarding the proposed sanitary sewer pump station: Show an emergency generator. The pump station needs to be enclosed with a security fence. More details are needed on the pump station. Who will monitor and maintain the station and respond to the alarms? How will O&M costs of pump station be funded? A Written O&M plan is needed. 7. If Town services for refuse and recycling are requested, the owner must provide executed Indemnification and Permission to Enter forms. 8. An application must be submitted to the WPCA for review and approval of this project. Please call me(x 245)if you have any questions. Stormwater Management Plan Podunk Ridge South Windsor, Connecticut Fop, 1 2003 O Prepared by Design Professionals, Inc. 165 South Satellite Road South Windsor, CT 06074 DPI Project No. 02-1520 January 28,2003 Rev. 2-13-03 rill tog a isteer®® ; 'All �+nuaawil" Table of Contents: Page# Introduction I Proposed Development 1 Off-Site Analysis 1 Peak Runoff control 1 Riparian Buffers I Erosion/Sedimentation Control Systems 1 Storrawater Runoff Quality 1 Conveyance System 1 Discharge at the Natural Location 2 Maintenance and Operation 2 Topographic Contour Maps 2 Floodplain Boundaries 2 Drainage Design 2 On-Site Storm Sewer Calculations 3 On-Site Water Quality Measures 3 Conclusions 4 Appendices TR-55 Existing Conditions A TR-55 Developed Conditions B Storm Drainage Calculations C Introduction: The site is located on the west side of Ellington Road(Route 30). The site presently contains a single family home and a number of out buildings. The site is bounded in the west and north by the Podunk River, and has fairly steep banks down to the river. The upland portion of the site was used for farming. Proposed Development: The proposed development consists of the construction of 21 single family age restricted housing units with associated roadway and driveways. A community building will also be built on the site. Off-Site Analysis: The majority of the site presently drains directly to the Podunk River over the banks. The upland portion of the site drains to a few concentrated points that drain down the hill to the river. A small portion of the southeastern side of the site drains to the south to the neighboring properties to the south. Peak Runoff Control: Due to the location of the site close to the Podunk River, and on the lower reaches of the overall watershed, the site has not been designed to provide peak runoff attenuation. Detaining the peak runoff on this site will only delay the peak to more closely match the peak runoff in the entire watershed. By allowing the peak from this site to flow directly to the Podunk River with no attenuation will allow the peak from the site to entire the river before the river peaks from upstream areas. Riparian Buffers: Due to concerns expressed by the Town Environmental Planner,the development of the site has been held back from the edge of the embankment associated with the Podunk River. Erosion/Sedimentation Control Systems: An extensive erosion/sedimentation control plan has been developed as part of the site design. These measures include the following: 1. Installation of silt fence down-slope of disturbed areas. 2. Installation of silt fence around stockpiled materials. 3. Installation of silt fence around drywells. 4. Seeding and mulching disturbed areas as soon as practical during construction. 5. Limiting the areas of disturbance during construction. 6. Installation of construction entrance pads, and sweeping of roadways as needed. 7. Maintenance of the above measures. Stormwater Runoff Quality: Prior to discharge,the storm runoff from the site will be directed through a Baysaver unit. Conveyance System: The site will contain a typical storm drainage system consisting of catch basin and piping. The storm system will collect overland runoff and foundation drainage. The system will contain the Baysaver unit for water quality, and will discharge to the Podunk River. Discharge at the Natural Location: The site presently discharges to the Podunk River. Under developed conditions, the site will continue to discharge to the Podunk River. Maintenance and Operation: The following maintenance operations will be required to ensure the proper and efficient operation of the Storm Water System. The following maintenance schedule is intended to be a minimum guide, and additional inspections and maintenance measures may be required following large storm events that could cause the deposition of excess debris in the system. Catch Basins: The Catch Basins shall be inspected annually, and cleaned when the depth of material within the catch basins reach 1'. Pavement Sweeping: The parking areas and driveways should be swept a minimum of once a year, in the spring shortly after the end of the snow season. Pipe Outlet Locations: The pipe outlets and associated riprap shall be inspected annually and cleaned of silt and or debris. The riprap shall be re-shaped and replenished as required. BaySaver Structures: The Baysaver Structures shall be inspected quarterly for the first year of operation after stabilization of the site to determine the required maintenance schedule. The Baysaver shall be cleaned when the sediment in either manhole reaches a depth of 2'. The maintenance shall be done in accordance with the Baysaver recommendations as contained on the detail sheet. Topographic Contour Maps: A topographic contour map has been provided showing the developed drainage areas for the site at a scale of 1"=40'. The map showing the developed conditions is included in the rear of this report. Floodplain Boundaries: The floodplain boundaries are shown on the site. Drainage Design: The drainage design of the site has been completed utilizing a number of computer programs and generally accepted design methods. The runoff from the site under existing and developed conditions was developed utilizing the TR-55 computer program. The on site drainage system was designed using the rational formula. Under existing conditions, the site generally drains to the Podunk River. The existing runoff per the Tr-55 analysis is included in Appendix A. The summary of the results is as follows: Design Storm Exist flows 2 0 10 1 25 2 50 4 100 6 Under developed conditions, the site will continue to drain to the Podunk River. The TR- 55 analysis under developed conditions is included in Appendix B. A summary of the existing and developed runoff from the site is as follows: Design Storm Exist Flows Developed Flows 2 0 1 10 1 4 25 2 6 50 4 7 100 6 9 There is a modest increase in peak runoff from the site due to the proposed development. The increase in peak runoff is small (3 CFS for the 100 year storm). Due to the location of the site close to the Podunk River, and on the lower reaches of the overall watershed, the site has not been designed to provide peak runoff attenuation. Detaining the peak runoff on this site will only delay the peak to more closely match the peak runoff in the entire watershed. By allowing the peak from this site to flow directly to the Podunk River, with no attenuation, will allow the peak from the site to enter the river before the river peaks from upstream areas. The entire Podunk River has a watershed at the Corporate Limits of the Town(which is very close to the outlet of the Podunk River to the Connecticut River) of 18.94 square miles. The Podunk River above Quarry Brook has a total drainage area of 10.05 Square miles. With the contribution of 1.64 square miles of watershed from Quarry Brook,the total drainage area for the Podunk River below Quarry Brook is 11.69 square miles. This point is still a ways upstream of the site. Therefore,the majority of the drainage area for the Podunk River is upstream of the site (62%), with a maximum of only 38%down stream of the site. With the site located in the lower reaches of the watershed, the peak runoff from the site will not adversely impact the peak of the watershed. The watershed will peak long after the site has peaked and subsided. On-Site Storm Sewer Calculations: The on-site storm drainage system has been designed for the 10 year design storm. The calculations are included in appendix C. On-Site Water Quality Measures: The proposed Baysaver Unit will be installed to treat all storm runoff collected within the storm drainage system. Conclusions: The on-site stormwater system with the associated Baysaver unit will mitigate any potential water quality impacts from the development of the site. Due to the location of the site within the overall Podunk River watershed, detention on the site is not warranted. APPENDIX A RUNOFF CURVE NUMBER COMPUTATION Version 2.00 Project 1520 User: gbs Date: County hartford State: ct Checked: Date: Subtitle: existing conditions Subarea : 1 ------------------------------------------------------------------------------- Hydrologic Soil Group COVER DESCRIPTION A B C D Acres (CN) ------------------------------------------------------------------------------- OTHER AGRICULTURAL LANDS Brush - brush, weed, grass mix poor 6.3(48) - - - Total Area (by Hydrologic Soil Group) 6.3 ------------------------------------------------------------------------------- SUBAREA: 1 TOTAL DRAINAGE AREA: 6.3 Acres WEIGHTED CURVE NUMBER: 48* ------------------------------------------------------------------------------- * - Generated for use by GRAPHIC method TIME OF CONCENTRATION AND TRAVEL TIME Version 2.00 Project : 1520 User: gbs Date: County : hartford State: ct Checked: Date: Subtitle: existing conditions ------------------------------------------------------------------------------- Flow Type 2 year Length Slope Surface n Area Wp Velocity Time rain (ft) (ft/ft) code (sq/ft) (ft) (ft/sec) (hr) ------------------------------------------------------------------------------- Sheet 3.2 200 .013 j 0.301 Shallow Concent'd 325 .013 u 0.049 Time of Concentration = 0.35* --- Sheet Flow Surface Codes --- A Smooth Surface F Grass, Dense --- Shallow Concentrated --- B Fallow (No Res. ) G Grass, Burmuda --- Surface Codes --- C Cultivated < 20 o Res. H Woods, Light P Paved D Cultivated > 20 o Res. I Woods, Dense U Unpaved E Grass-Range, Short J Range, Natural * - Generated for use by GRAPHIC method GRAPHICAL PEAK DISCHARGE METHOD Version 2.00 Project 1520 User: gbs Date: County hartford State: ct Checked: Date: Subtitle: existing conditions Data: Drainage Area 6.3 * Acres Runoff Curve Number 48 * Time of Concentration: 0.35 * Hours Rainfall Type III Pond and Swamp Area NONE ----------------------------------------------------------- ----------------------------------------------------------- I Storm Number I 1 1 2 1 3 1 4 1 5 1 I----------------------1------1------1------1------1------1 Frequency (yrs) I 2 1 10 1 25 I 50 I 100 I I I I I I I I 124-Hr Rainfall (in) 1 3.2 I 4.7 I 5.5 I 6.2 I 6.9 I I I I I I I I I Ia/P Ratio 1 0.68 10.46 10.39 1 0.35 10.31 1 I I I I I I I I Used 10.50 1 0.46 10.39 1 0.35 10.31 1 I I I I I I I I Runoff (in) ( 0.09 ( 0.48 1 0.78 11.09 11.44 1 I I I I I I I Unit Peak Discharge 10.331 10.388 10.499 10.564 10.608 1 I (cfs/acre/in) I I I I I I I I I I I I I I Pond and Swamp Factorl 1.00 1 1.00 1 1.00 1 1.00 1 1.00 1 I 0.0% Ponds Used I I I I I I ----------------------1------1------1------I------1------I I Peak Discharge (cfs) 1 0 1 1 1 2 1 4 1 6 1 ----------------------------------------------------------- ----------------------------------------------------------- * - Value(s) provided from TR-55 system routines APPENDIX B TIME OF CONCENTRATION AND TRAVEL TIME Version 2.00 Project : 1520 User: gbs Date: County : hartford State: ct Checked: Date: Subtitle: developed conditions ------------------------------------------------------------------------------- Flow Type 2 year Length Slope Surface n Area Wp Velocity Time rain (ft) (ft/ft) code (sq/ft) (ft) (ft/sec) (hr) ------------------------------------------------------------------------------- Sheet 3.2 100 .013 f 0.283 Shallow Concent'd 100 .013 u 0.015 Open Channel 400 2 0.056 Time of Concentration = 0.35* --- Sheet Flow Surface Codes --- A Smooth Surface F Grass, Dense --- Shallow Concentrated --- B Fallow (No Res. ) G Grass, Burmuda --- Surface Codes --- C Cultivated < 20 o Res. H Woods, Light P Paved D Cultivated > 20 o Res. I Woods, Dense U Unpaved E Grass-Range, Short J Range, Natural * - Generated for use by GRAPHIC method RUNOFF CURVE NUMBER COMPUTATION Version 2.00 Project 1520 User: gbs Date: County hartford State: ct Checked: Date: Subtitle: developed conditions Subarea : 1 ------------------------------------------------------------------------------- Hydrologic Soil Group COVER DESCRIPTION A B C D Acres (CN) ------------------------------------------------------------------------------- FULLY DEVELOPED URBAN AREAS (Veg Estab. ) Open space (Lawns,parks etc. ) Good condition; grass cover > 750 4.42 (39) - - - Impervious Areas Paved parking lots, roofs, driveways 1.88 (98) - - - Total Area (by Hydrologic Soil Group) 6.3 ------------------------------------------------------------------------------- SUBAREA: 1 TOTAL DRAINAGE AREA: 6.3 Acres WEIGHTED CURVE NUMBER: 57* ------------------------------------------------------------------------------- * - Generated for use by GRAPHIC method GRAPHICAL PEAK DISCHARGE METHOD Version 2.00 Project 1520 User: gbs Date: County hartford State: ct Checked: Date: Subtitle: developed conditions Data: Drainage Area 6.3 * Acres Runoff Curve Number 57 * Time of Concentration: 0.35 * Hours Rainfall Type III Pond and Swamp Area NONE Storm Number I 1 1 2 1 3 1 4 1 5 1 1-----------------------1------1------I------I------1------I Frequency (yrs) I 2 1 10 I 25 1 50 I 100 1 I I I I I I I 1 24-Hr Rainfall (in) 1 3.2 1 4.7 1 5.5 ► 6.2 i 6.9 1 I I I I I I I Ia/P Ratio 1 0.47 1 0.32 1 0.27 1 0.24 1 0.22 1 I I I I I I I Runoff (in) 10.31 1 0.95 i 1.38 1 1.80 1 2.25 1 I I I I I I I l Unit Peak Discharge 10.373 10.599 10.640 10.657 10.671 1 I (cfs/acre/in) I I I I I I I I I I I I I 1 Pond and Swamp Factorl 1.00 1 1.00 1 1.00 1 1.00 1 1.00 1 1 0.0% Ponds Used I I I I I I ----------------------1------1------1------1------I------I 1 Peak Discharge (cfs) ► 1 1 4 1 6 1 7 1 9 1 * - Value(s) provided from TR-55 system routines APPENDIX C 1• JOB �a ✓w �: �. eSi n SriEET NO OF professionals, inc. CALCUI.ATF0 By DATE civil en losers DESIGN STORM FREQUENCY � Planners surveyors • gie r CCA CHECKED BY .. DATE IPE .•Rw+ rner�e�r A x c T.Co. i a • Fromm To /� C Incr o . min. IInAr cfs 0i,,,;, S: �s V NOTE Q.ra n ©, CA `! o. , N y 0 . 86 u � , D c,.,5r 1). 6 ors o n c, 5. � , o I S " d163Lc % s, u ,r 0 0 b 3 1 �' z{ Ir. { t� �• ___. � �..._.. 0.�D'/o' �, cam-•• ct v / � b �"-�........ -- DESIGN PROFESSIONALS, INC. civil engineers-planners-surveyors gis-gps•landscape architects Transmitted via certified mail February 10, 2003 Dear Current Abutting Property Owner Re: Podunk Ridge SRD DPI Project No. 01-1520 Ellington Road South Windsor, Connecticut In accordance with regulations of the Inland Wetlands Agency and the Planning &Zoning Commission,we are required to notify you that applications have been filed on the property abutting yours and are subject to a hearing(s)by the Inland Wetlands Agency and the Planning& Zoning Commission. The applications and plans are on file with the South Windsor Planning Department in the Town Hall. As an abutting property owner you are invited to the hearing(s)to ask questions and/or give comments,however, you are not required to attend. You may also submit written comments regarding the application(s)prior to the meeting if you so desire. For further information regarding the specific date this application will be heard,please contact Kelli Holmes,Administrative Secretary, Michele Lipe, Deputy Planning Director, or Jeffrey Folger,Environmental Planner,at the South Windsor Planning Department at 644-2511, ext. 253,252 or 229,respectively. Thank you. SincerelrPeter DESIGFESSIONALS, INC_ By. — . DeMallie Principal cc: Jeffrey Folger Marcia Banach Scott Kelley 165 South Satellite Road,South Windsor,CT 06074 Telephone(860)291-8755 Fax(860)291-8757 Email:dpicivil@aol.com Direct Abutting Property Owners DPI Project No. 0 1-1520 RSK-Kellco, Inc. Podunk Village 34/52 Linda V. Cloutier 57 Ordway Drive South Windsor, CT 06074 34/53-7 Jacqueline King 55 Ordway Drive South Windsor, CT 06074 34/79 Andre Charbonneau 10 Abbe Road South Windsor, CT 06074 35/1 Anthony J. Bonito 246 Hilton Drive South Windsor, CT 06074 35/2 David E. & Allison Bobrowski 914 Ellington Road South Windsor, CT 06074 35/60-8 Lucy M. Charpentier 47 Ordway Drive South Windsor, CT 06074 35/61-9 Stephen G. &Roseann G. Wilcox 39 Ordway Drive South Windsor, CT 06074 35/62-10 James M. Halpin 31 Ordway Drive South Windsor, CT 06074 35/63-11 Rocco E. Montano 23 Ordway Drive South Windsor, CT 06074 35/66 Joseph P. &Dolores O. Lewis 850 Ellington Road South Windsor, CT 06074 RECEIVED FEB 1 U 2003 South Windsor INLAND WETLANDS AGENCY CONSERVATION COMMISSION pp- .77 • • -• • • •-r (Domestic Only; No Insurance CoverageProvided) " Y Q ZZ 17 f (� Postage $ 4,311 `; — 1`- Postage $ J 1 i n �Cv [ yCf ' Certified Fee oC . 3p ���� t} i ' Certified Fee C�. u tHere qr.,. stmaReturn Receipt Fee ( Ir r` Fsostmark i { Re►urn Receipt Fee(Endorsement Requirecq 1 . Here : r .Q Q (Endorsement Required) t Q Restricted Delivery Fee • I Q Restricted Delivery Fee f J Q (Endorsement Required) O R aft r I Q (Endorsement Required) Q Total Postage&Fees $ q _ y�,•' O Total Postage&Fees $ 4,Li �- Sent ToSent Tot - - - . --,�1jy ..................................- f1J Street,Apt.No.; "'--'-""""""-"'" tl l Street Apt.No. •- O or PO Box No. I j or O No.Box ..-• - •••...-••-- Clfy, I I C3"City,State,ZIP+ - � �^� .._.:..'._......5 PS Form :,r rr .r Instructions PS Form 3800,January 2001 (Domestictal Service U.S.Postal Service CERTIFIED MAIL RECEIPT CERTIFIED MAIL RECEIPT • .• Provided) RJ �O r" _ ::. .. 0 F F Lj O O r. Postage $ i 4V s f%- Postage $ r' Certified Fee 119 ,1 Certifled Fee Er ✓ f m kEr Return Receipt Fee 4t Here i Return Receipt Fee 1 V HAre + ri (Endorsement Required) • t O r/ ,{ O (Endorsement Required) 4•�; O Restricted Delivery Fee Q ' O Restricted Delive Fee _. . �'� O (Endorsement Required) ^ sON� Q� Q (Endorsement Required) f v�Q�)t f�l Q Total Postage&Fees / �, 111 Total Postage&Fees " �- Sent To n • ' �• Sent To Q ....._......�F.�.1_� ....1..�:1f�,l.L. ............. Q 1:`� ..._ :. -@tu�`:v.....-------•---•------ Street Apt.No.; ...--• � - -• :� .. f u or PO Box No. ���JJJ I (�� ` t, tl l Street Apf.rw n Q l...Y..: - -�•-i7 ............... .....• I. Q or O Box No. H .......: ..clX.�..._.........._...._..... P •- ..... ..... .. . in Clty,State,Z1P+ IM CT �/ I Clty,State,ZIP+ CT :rr rr • t Ct/ V :rr rr Postalice Postal CERTIFIED MAIL RECEIPT: CERTIFIED MAIL RECEIPT (Domestia Mail Only; No Insurance CoverageProvided) (I• 1 No insurance coverageProvided) Ul Ir A Q 70 C37 g i Postage $ .�j Postage $ . 1 �( , ' � Certified Fee J� `t J `,yf,+ Certified Fee Return Receipt Fees t - �� H Return Receipt Fee '� ,. , 1, H ark .. f (Endorsement Required) t l i Q (Endorsement Required) } O 5 to ., Q Restricted Delivery Fee t v� O Restricted Delivery Fee O (Endorsement Required) *n i, Q (Endorsement Required) Total Postage&Fees L++ �`5������•••.��.•••.•////"''Cif Total Postage&Fees $ 1 1 (k v 50�1(� O C�rI` Il Q Sfree A t ..........., (� �pru O Street,Apt.No. l I lam( �1 I ' - _....._... ru or Street, Box No.' or PO B x No. .. •--------- - Q _ l Q Clfy,State,ZIP 4 O Clfy,State,ZIP+ -• ' -' -' PS Form :rr rr . a CERTIFIkD:M' AIL • &Qv, coverageProvided). (Domestic Mail Only;No Insurance CoverageProvided) PLn t�" xC ra ''i'i �n•.ra ,_ C ftF (¢ ty�B� I _ 1 L i 4.IX4' i3 �� I C c3 A £3, •.(U C3 I : C3 1 -.. N Postage $ ♦ 3 r I Postage $ (> ) + m n Off• Certified Fee C�( . ' �' //.. �sj� t Certified Fee Er Return Receipt Fee /`()fos ark rAll P // He f Return Receipt Fee --� `/ Z Post ark O (Endorsement Required) I I !r 1 r� q l J �.t. H e 1 A 111 0 (Endorsement Re uire 1 ��`, Q Restricted Delivery Fee _ w �L �) i ; p Restricted Delivery Fee {a O (Endorsement Required) f ; C3 (Endorsement Required) 0 Total Postage&Fees L t �,` cyQSaLt`� Total Postage 8 Fees s q 1 Sent To ., ,, i .B r --..--. F (y(�'- ;�- Sent To O StreeFNol .•_--"_ l la,anl/_ - � — --------•--_ ---------------------------- • .. .. rLi p ; I Street,Apt. o.; or PO Box No. i ru -..`Sf Y S. ._`�JC d t L_)............... or O Box No. 3 �V lV^- P City,State,ZIP 4 }1 - i C3 Ctty,State,ZIP+ ` 1 .; n--Rob --!_--------------------- PS Form :11 11 :11 11 PostalI U.S.Postal Service CERTIFIED MAIL RECEIPT" .I MAIL,RECEIPT CERTIFIED (Domestic Mail Only; No Insurance Coverage Provided) most q Mail only; No insurance Coverage Provided) Ir F o � �J � , 4 �m � -- �`. o J j;`� �/ 0.37 UNIT IN 0174 (�- Postage $ e S1 `, Postage $ r 3 m m r%- Certified Fee a •3 U` �i� 7 ,, tti Certified Fee ,� •30 Return Receipt Fee ` M jr,Est rk t �' /1.75 Postmark r-1 (Endorsement Required) �' ✓ He Return Receipt Fee t ( �(� Here C3 (EndorsementRequired) Clerk' KXTFJi O Restricted Delivery Fee O (Endorsement Required) Q g p Restricted Delivery Fee S1 Q 0 (Endorsement Required) Total Postage&Fees y '�� �N�M O Total Postage&Fees � �, 4 tL42 02/14/03 ..3 �- Sent /1 ( „ ..-• Sent T ... (J. �tCd ........................ .................... ------........---- .......- P Street,Apt.No.; (� •-` �. ... !f` nO or PO Box No. tY� tU Stet,Apt.No.; \ or PO Box No. , ` ..__._. .. -••- O �c... Cit N . � OCPL� city,state, aLC� C D�� :11 11 -v -,cn cvCnc»cn C CD CQ- W fV CnOr+w T.rh 0• 0 w.f -0 OOOO fn-0n O'a-�--s (D 0 O. DC�E7C��,7 t7 O�-t"Q��T S7':"-�•O CD L7 cw CCw C(D fD w00(D(D-•• 3>r0 (D o w w w—al-Iw-�r�.+,1� (n.-1(n-r•cn c-, ccn O c �or+ ID w•+Ca.-+cn CD O O c —(o -fi \ r+CD rr+CD r-s O-+• -.w O-+.rl �.cn�G Cn =c iF R7 1-• W ;V-w—.--w O tV-h m r••FO Zrt Co -i-I(- r 1 cr+ IT o-�• w c-)(D--a,� zcnw o�x+(- m CD `c ACD�c-0-CD M.t-CD Cnr+O r+a;. a 1-Iw o Ile" -* 4 w CD _ —•m O)t1mtD to—� •w CTdE3 O \Z.t iE CU---1 (n 0• •A'� �'�(7 O Z7--•r•P*G O(n (D (D W CD= CD AN�CnNv(D•03C •• D O 0 .A-fnZt w cn cn ow/-1 m (� _ my�_;v CAIP- o •- au- o c�{IA 149 m� CD - ooc»vc�-r oc��� COCs�/-/cw ru N� nm 4� 3 w 0 C) 0�-r�oo Wozvcnw - o O - C- fA W I C7r0'O O 8:1 w rn w�.-,cr,o rnrncm—�•(n Woo 1tN CD-4 CDAC7-{tD 'Up>7o. cn N 4A o a;m -, 3 o r hl 1�1 -� �( '--' N - A-NA.0 T1CO �W-t-i•(- . X17 cola A PIP, •�I NC�TI O - .ta L com . O CD coD � ME- Abutting Property Owners FEB 1 DPI Project No. 01-1520 RSK-Kellco, Inc. 2003 Podunk Village INLAND CONSERVATION CU ;i aUi,r Ma /Lot No. Pro a Owne s Maitine Address 34/21-19 Horseshoe Lane Associates, LLC 171 Hilton Drive South Windsor, CT 06074 34/23-20 Sawa G. &Karen L. Sawides 187 Hilton Drive South Windsor, CT 06074 34/24-21 James D. &Barbara Caine 195 Hilton Drive South Windsor, CT 06074 34/25-22 William F. M. Donlin 205 Hilton Drive South Windsor, CT 06074 34/26-234 John Jr. & Claudia A. Goiangos I 1 Sharon Drive South Windsor, CT 06074 34/38-233 Kathy J. Becker 6 Sharon Drive South Windsor, CT 06074 34/39-232 Michael &Virginia M. (Surv.) 241 Hilton Drive South Windsor, CT 06074 34/40-231 Lance D. Kramer 251 Hilton Drive South Windsor, CT 06074 34/41-206 Janese F. Bolden 260 Hilton Drive South Windsor, CT 06074 34/42-205 Robert G. &Doris T. Shafter 252 Hilton Drive South Windsor, CT 06074 34/43-204 Emily E. Dowling 240 Hilton Drive South Windsor, CT 06074 34/44-203 Noel L. & Irma R. Asselin 232 Hilton Drive South Windsor, CT 06074 34/45-202 Cecilien J. & Lauretta E. Cliche 224 Hilton Drive South Windsor, CT 06074 34/46-201 Mark A. & Anne C. Derrick 214 Hilton Drive South Windsor, CT 06074 34/47-23 John M. Zaczynski, Jr. 206 Hilton Drive South Windsor, CT 06074 34/48-24 Boucher Family Trust 198 Hilton Drive South Windsor, CT 06074 34/49-25 James H. Forney 192 Hilton Drive South Windsor, CT 06074 34/50-26 Fred J. &Mary L. Sauer 184 Hilton Drive South Windsor, CT 06074 34/51-27 Timothy F. & Suzie M. Couney 176 Hilton Drive South Windsor, CT 06074 34/52 Linda V. Cloutier 57 Ordway Drive South Windsor, CT 06074 34/53-7 Jacqueline King 55 Ordway Drive South Windsor, CT 06074 34/54-6 Hassam Eljafarawi 56 Ordway Drive South Windsor, CT 06074 34/55-5 John R. &Patricia E. Waters 48 Ordway Drive South Windsor, CT 06074 34/56-17 Eleanor R. &Margaret A. Geary 10 Ravine Road South Windsor, CT 06074 34/57-16 Cynthia Healey 16 Ravine Road South Windsor, CT 06074 34/63-15 Anthony J. &Dawn B. Cecere 24 Ravine Road South Windsor, CT 06074 34/64-14 Kathleen C. Stiles 30 Ravine Road South Windsor, CT 06074 34/65-13 Burnham Acres Association, Inc. 48 Davewell Road South Windsor, CT 06074 34/66-12 Wayne& Karen Finan 69 Hollis Road South Windsor, CT 06074 34/79 Andre Charbonneau 10 Abbe Road South Windsor, CT 06074 34/80-28 Delbert Jellison 170 Hilton Drive South Windsor, CT 06074 35/1 Anthony J. Bonito 246 Hilton Drive South Windsor, CT 06074 35/2 David E. &Allison Bobrowski 914 Ellington Road South Windsor, CT 06074 35/3 Christopher H. Rainville 926 Ellington Road South Windsor, CT 06074 35/4-82 Lakewood Condominiums Lakewood Drive South Windsor, CT 06074 35/7 Unity Church of Hartford 730 Farmington Road West Hartford, CT 06119 35/8 Susan G. Osborne 909 Ellington Road South Windsor, CT 06074 35/9 Robert B. &Judith A. Galaise 899 Ellington Road South Windsor, CT 06074 35/10 Julia Rackauski Johnson 341 Jordan Lane Wethersfield, CT 06109 35/11 M. Timothy Friend 887 Ellington Road South Windsor, CT 06074 35/12 Roger H. &Donna S. Anderson 871 Ellington Road South Windsor, CT 06074 35/13 Michele Simeone Michaud 861 Ellington Road South Windsor, CT 06074 35/14 Robert G. Dumouchel 1275 Tolland Stage Road Tolland, CT 06084 35/15 Frank J. &Rose P. Tavarnesi 847 Ellington Road South Windsor, CT 06074 35/16-1 Richard A. Thomas 21 Quarry Brook Road South Windsor, CT 06074 35/17-2 Justin A. &Kathleen G. Barnes 39 Quarry Brook Road South Windsor, CT 06074 35/45-407 Carmen Manrique 20 Quarry Brook Road South Windsor, CT 06074 35/46 Frank P. & Tosca A. (Sure)Longano 835 Ellington Road South Windsor, CT 06074 35/47 Robert L. & Viola(Surv)Rogers 827 Ellington Road South Windsor, CT 06074 35/48 Qammar N. Khan 817 Ellington Road South Windsor, CT 06074 35/52 Dominic Vespa 808 Ellington Road South Windsor, CT 06074 35/53 Donald Padegimas&Janet L. Hill 814 Ellington Road South Windsor, CT 06074 35/54 Nancy R. Dillon 822 Ellington Road South Windsor, CT 06074 35/55-1 Mark H. Jacques 16 Ordway Drive South Windsor, CT 06074 3 5/56-18 Stewart G.Brown 4 Ravine Road South Windsor, CT 06074 35/57-2 Timothy A. & Julie A. Rackliffe 24 Ordway Drive South Windsor, CT 06074 35/58-3 Richard N. &Michelle L. Labbe 32 Ordway Drive South Windsor, CT 06074 35/59-4 Andre& Fayne A. Hildebrand 40 Ordway Drive South Windsor, CT 06074 35/60-8 Thuy T. Tran& Steven M. Ruscik 47 Ordway Drive South Windsor, CT 06074 35/61-9 Stephen G. &Roseann G. Wilcox 39 Ordway Drive South Windsor, CT 06074 3 5/62-10 James M. Halpin 31 Ordway Drive South Windsor, CT 06074 35/63-11 Rocco E. Montano 23 Ordway Drive South Windsor, CT 06074 35/64-12 Donald L. Perkins 832 Ellington Road South Windsor, CT 06074 35/65-13 Charles M. Sellers& Jayne Jones(Surv) 840 Ellington Road South Windsor, CT 06074 35/66 Joseph P. &Dolores O. Lewis 850 Ellington Road South Windsor, CT 06074 3 5/68 Andrew T. &Karen M. Isherwood 58 Ordway Drive South Windsor, CT 06074 48/55 Helmar Wolf&Arturo Guerra 970 Ellington Road South Windsor, CT 06074 le CONNECTICUT DEPARTMENT OF ENVIRONMENTAL PROTECTION Statewide Inland Wetlands & Watercourses Activity Reporting Form In accordance with the requirements of Section 22a-39-14 of the Regulations of Connecticut State Agencies,this form is to be completed for each action taken by an inland wetlands agency established pursuant to Section 22a42 of the Connecticut General Statutes. Use a separate form to report each action taken by the agency. It is recommended that this form be made part of the application package. Inland wetlands agencies are responsible for verifying that the information provided below is accurate and that it reflects the final action of the agency. 1. TOWN IN WHICH THE ACTION IS OCCURRING: South Windsor LUUJ Does this project cross municipal boundaries? Yes No X FEB If so,please list the other towns in which the action is occurring: INLANU CONSFRVAT10N COIAMISS10N 2. LOCATION: USGS Quad Map name: Manchester AND Number.41072-G5-TF-024 Attach a clean 8'/z"x 1I"original scale photocopy of the USGS Quad Map with,in red ink, the boundary of the project site outlined (where possible)or the project site pinpointed with an arrow. Do not circle the "general vicinity"of the site. In the lower right-hand comer of each USGS Quad Map there is an identifying name,write the name from the corresponding map in the space provided above. Quad numbers are found on the Connecticut Town and Quadrangle Index Map (the directory to all USGS Quad Maps). Please provide the number in the space provided above. Do not attach a copy of the National Wetlands Inventory Map. Do Not attach a copy of the Connecticut Town and Quadrangle Index Map. 3. NAME OF APPLICANT,VIOLATOR OR PETITIONER: RSK—Kellco, Inc. Supply the name of the person applying for a permit,petitioner for a map amendment or jurisdictional ruling,or recipient of the enforcement action. 4. NAME FOR PROJECT SITE: Po dunk Ridge Senior or Residence Development opment Supply the name given to the project,or the name by which the project site is generally known. Briefly describe the project: 21 unit elderly housing development 5. ACTMTY TYPE CODE: 12 7 1 _ 1 1 2 Provide the code or codes which best characterize the activity being reported. A maximum of 4 codes may be entered. For example, locating a driveway in a buffer/upland review area would be code "9"and code"12"(code "7"is not used). The construction of a house in the buffer/upland review area would most likely be codes"2"for excavation, "9"for driveway construction,and "12"for buffer/upland review area. Construction of a parking lot in a buffer/upland review area may be codes"1","7","10",and "12". 1 ... Filling 7 .. .. Culverting(not for roadways) 2 ... Excavation 8 . ... Underground Utilities (no other activities) 3 ...Land CIearing/Grubbing(no other activity) 9 .. .. Roadway/Driveway Construction 4 ... Stream Channelization 1.0 ... Drainage Improvements 5 . .. Stream Stabilization 11 ... Pond Dredging/Dam Construction 6 .. . Stream Clearance (removal of debris only) 12 ... Activity in Buffer/Upland Review Area 6. ACTPATY PURPOSE CODE: R Enter only one code letter which best characterizes the activity. ALL STATE AGENCY PROJECTS MUST ONLY CODE"N".' A .. . Residential Improvement by Homeowner I .. . Storm Water/Flood Control B ... New Residential Development for Single Family Units J . . . Erosion/Sedimentation Control C .. . New Residential Development for Multi-Family/Condos K. . . Recreation/Boating/Navigation D . . . Commercial/Industrial Uses L . .. Routine Maintenance E .. . Municipal Project M . . Map Amendment F ... Utility Company Project •N. . . State Agency Project G .. .Agriculture,Forestry or Conservation P ... Other H ... Wetland Restoration,Enhancement,Creation REVISED 1198 fi. AREA OF WETLANDS AND/OR WATERCOURSES ALTERED: Include areas that are altered or are proposed to be altered,temporary or permanent, for all agency permits,denials,amendments, and enforcement actions. Remember,these figures represent only the acreage altered,not the total acreage of wetlands or watercourses-on the site. Figures should be provided by the applicant in the application. Provide all information in acreage including those areas less than one acre. To convert from square feet to acres,divide square feet by the number 43,560- Enter a zero if there is no alteration. Open water body altered refers to lakes,ponds or similar bodies of water that are filled or dredged. Stream alterations are to be reported in linear feet and include the total length of the river,brook,stream or other watercourse directly altered as a result of the action taken by the agency. Include any culverting(roadway,etc.),channel improvements,rip rap installation,relocation or dredging. A. Wetland Area Altered: 0 ACRES B. Open Water Body Area Altered: 0 ACRES C. Stream Alteration: 0 LINEAR FEET 8. BUFFER/UPLAND REVIEW AREA ALTERED: 0.09+/— ACRES Buffer or upland review areas are those areas adjacent to wetlands or watercourses where activities are regulated by the local agency. Report the acreage of upland review areas that are altered or are proposed to be altered,temporary or permanent,for all agency permits,denials,amendments,and enforcement actions;or for agent approval pursuant to 22a-42a(c)(2). For example,a 2 acre project site may have an activity occurring in I acre of buffer/upland review area and 0.25 acres of wetlands. Therefore.0.25 acres will be reported on line 7A and I acre on line S. 9. AREA OF WETLANDS AND/OR WATERCOURSES RESTORED,ENHANCED OR CREATED : 0 ACRES Mitigation measures may be considered as a condition of issuing a permit for an activity. Report areas that are,or are proposed to be,restored,enhanced or created for all agency permits,denials,amendments,and enforcement actions. Restored or enhanced applies to previously existing wetlands or watercourses. For example,a wetland area filled two years ago is proposed to be restored by removing the existing fill. Created applies to an upland area which is converted into wetlands or watercourses. FOR MUNICIPAL AGENCY USE ONLY FOR STATE USE ONLY THE INLAND WETLANDS AGENCY MUST ENSURE THAT THE INFORMATION DATE RECEIVED: PROVIDED BLOW IS ACCURATE AND THAT IT REFLECTS THE FINAL ACTION OF THE AGENCY. COMPLETED FORMS FOR ACTIONS TAKEN I DURING A CALENDAR MONTH SHALL BE MAILED BY THE AGENCY TO THE DEP NO LATER THAN THE IJTH DAY OF THE FOLLOWING MONTH. MAIL REPORTING FORMS TO: Inland Water Resources Division,DEP, 79 Elm Street,Hartford, CT. 06106 QUESTIONS MAY BE DIRECTED TO THE WETLANDS MANAGEMENT GIS CODE#: SECTION AT(860) 424-30 1 9. NAME/TrrLE OF PERSON COMPLETING THIS FORM: FILE# (SAME AS QUAD #): (PRINT) (SIGNATURE) FORM COMPLETED: YES NO DATE ACnON WAS TAKEN: MONTH YEAR WAS A PUBLIC HEARING HELD? YES No IF "NO". DATE MAILED TO TOWN: ACTION TAKEN: ENT£R LETrl<R DATE RETURNED TO DEP: A. PERMIT GRANTED BY AGENCY B. PERMIT DENIED BY AGENCY C. PERMIT ccrENDED/AMENDED BY AGENCY D. AGENT APPROVAL PURSUANT TO 22a-42a(C)(2) E. APPEAL OF AGENT APPROVAL PURSUANT TO 22a-42a(c)(2) F. MAP AMENDMENT(AMENDMENT TO THE OFFICIAL TOWN WETLANDS MAP, NOT A PROJECT SITE MAP) G. ENFORCEMENT NOTICE/ORDER H. JURISDICTIONAL RULING (I.E.: ACTIVITIES "PERMITTED AS Or RIGHT" OR ACTIVITIES CONSIDERED NON-REGULATED) REVISED 1198 _�O i d �. �✓ J 7 Je21StattOn"ft0.„ \o I -� \�,/ABM ,42 0��. � ,:'/•' ,\�(7�; �.� STR°Ng., _.. � 01, j/30 j� off /•%, �S. O <\ \ g r ' ,33 •• 'may e ��Q'/C oo •,- ,p,� � ROAD � � � SOU O �Y• i*/j 1� \\ - •©- 1 ^ I ' I-uso ram' `j4F ar it r~ rye' ,\• �, 3r„�•'••' 1�� �'=-�`� ' •�1\ `� ��\' vein o (� /��` .•Ple '� / 1 ° )\// j .cheater, Q � •f"_'• c 1 �I �I � l.' �' '� - � �' f p 44 itX 4° \\�'t. VLt O •o�ll i `..y '� �-. .�I�qo ; ;1 `✓ SM / � ham 0 suit o I - -STREET. _ R :aB • � Olt •• ��D ... •.r''pF�c�• Z Curse 86 A an rip,E E , Stormwater Management Plan Podunk Ridge F South Windsor, Connecticut FEB 1 0 2003 60LAh VY:n dsor INLAND 4VrTLANDS AGENCY" CONSERVATION COS 0,11SSION Prepared by Design Professionals, Inc. 165 South Satellite Road South Windsor, CT 06074 DPI Project No. 02-1520 January 28,2003 N4'>fi+3vVt.'1as.' �C� Table of Contents: Page# Introduction 1 Proposed Development I Off-Site Analysis 1 Peak Runoff control 1 Riparian Buffers 1 Erosion/Sedimentation Control Systems I Stormwater Runoff Quality I Conveyance System 1 Discharge at the Natural Location 2 Maintenance and Operation 2 Topographic Contour Maps 2 Floodplain Boundaries 2 Drainage Design 2 On-Site Storm Sewer Calculations 3 On-Site Water Quality Measures 3 Conclusions 4 Appendices TR-55 Existing Conditions A TR-55 Developed Conditions B Storm Drainage Calculations C Introduction: The site is located on the west side of Ellington Road(Route 30). The site presently contains a single family home and a number of out buildings. The site is bounded in the west and north by the Podunk River, and has fairly steep banks down to the river. The upland portion of the site was used for farming. Proposed Development: The proposed development consists of the construction of 21 single family age restricted housing units with associated roadway and driveways. A community building will also be built on the site. Off-Site Analysis: The majority of the site presently drains directly to the Podunk River over the banks. The upland portion of the site drains to a few concentrated points that drain down the hill to the river. A small portion of the southeastern side of the site drains to the south to the neighboring properties to the south. Peak Runoff Control: Due to the location of the site close to the Podunk River, and on the lower reaches of the overall watershed, the site has not been designed to provide peak runoff attenuation. Detaining the peak runoff on this site will only delay the peak to more closely match the peak runoff in the entire watershed. By allowing the peak from this site to flow directly to the Podunk River with no attenuation will allow the peak from the site to entire the river before the river peaks from upstream areas. Riparian Buffers: Due to concerns expressed by the Town Environmental Planner, the development of the site has been held back from the edge of the embankment associated with the Podunk River. Erosion/Sedimentation Control Systems: An extensive erosion/sedimentation control plan has been developed as part of the site design. These measures include the following: 1. Installation of silt fence down-slope of disturbed areas. 2. Installation of silt fence around stockpiled materials. 3. Installation of silt fence around drywells. 4. Seeding and mulching disturbed areas as soon as practical during construction. 5. Limiting the areas of disturbance during construction. 6. Installation of construction entrance pads, and sweeping of roadways as needed. 7. Maintenance of the above measures. Stormwater Runoff Quality: Prior to discharge, the storm runoff from the site will be directed through a Baysaver unit. Conveyance System: The site will contain a typical storm drainage system consisting of catch basin and piping. The storm system will collect overland runoff and foundation drainage. The system will contain the Baysaver unit for water quality, and will discharge to the Podunk River. Discharge at the Natural Location: The site presently discharges to the Podunk River. Under developed conditions, the site will continue to discharge to the Podunk River. Maintenance and Operation: The following maintenance operations will be required to ensure the proper and efficient operation of the Storm Water System. The following maintenance schedule is intended to be a minimum guide, and additional inspections and maintenance measures may be required following large storm events that could cause the deposition of excess debris in the system. ' Catch Basins: The Catch Basins shall be inspected annually, and cleaned when the depth of material within the catch basins reach 1'. Pavement Sweeping: The parking areas and driveways should be swept a minimum of once a year, in the spring shortly after the end of the snow season. Pipe Outlet Locations: The pipe outlets and associated riprap shall be inspected annually and cleaned of silt and or debris. The riprap shall be re-shaped and replenished as required. BaySaver Structures: The Baysaver Structures shall be inspected quarterly for the first year of operation after stabilization of the site to determine the required maintenance schedule. The Baysaver shall be cleaned when the sediment in either manhole reaches a depth of 2'. The maintenance shall be done in accordance with the Baysaver recommendations as contained on the detail sheet. Topographic Contour Maps: A topographic contour map has been provided showing the developed drainage areas for the site at a scale of 1"=40'. The map showing the developed conditions is included in the rear of this report. F000dplain Boundaries: The floodplain boundaries are shown on the site. Drainage Design: The drainage design of the site has been completed utilizing a number of computer programs and generally accepted design methods. The runoff from the site under existing and developed conditions was developed utilizing the TR-55 computer program. The on site drainage system was designed using the rational formula. Under existing conditions, the site generally drains to the Podunk River. The existing runoff per the Tr-55 analysis is included in Appendix A. The summary of the results is as follows: Design Storm Exist flows 2 0 10 1 25 2 50 4 100 6 Under developed conditions,the site will continue to drain to the Podunk River. The TR- 55 analysis under developed conditions is included in Appendix B. A summary of the existing and developed runoff from the site is as follows: Design Storm Exist Flows Developed Flows 2 0 1 10 1 4 25 2 6 50 4 7 100 6 9 There is a modest increase in peak runoff from the site due to the proposed development. The increase in peak runoff is small (3 CFS for the 100 year storm). Due to the location of the site close to the Podunk River, and on the lower reaches of the overall watershed, the site has not been designed to provide peak runoff attenuation. Detaining the peak runoff on this site will only delay the peak to more closely match the peak runoff in the entire watershed. By allowing the peak from this site to flow directly to the Podunk River, with no attenuation, will allow the peak from the site to enter the river before the river peaks from upstream areas. The entire Podunk River has a watershed at the Corporate Limits of the Town(which is very close to the outlet of the Podunk River to the Connecticut River) of 18.94 square miles. The Podunk River above Quarry Brook has a total drainage area of 10.05 Square miles. With the contribution of 1.64 square miles of watershed from Quarry Brook,the total drainage area for the Podunk River below Quarry Brook is 11.69 square miles. This point is still a ways upstream of the site. Therefore,the majority of the drainage area for the Podunk River is upstream of the site (62%), with a maximum of only 38% down stream of the site. With the site located in the lower reaches of the watershed,the peak runoff from the site will not adversely impact the peak of the watershed. The watershed will peak long after the site has peaked and subsided. On-Site Storm Sewer Calculations: The on-site storm drainage system has been designed for the 10 year design storm. The calculations are included in appendix C. On-Site Water Quality Measures: The proposed Baysaver Unit will be installed to treat all storm runoff collected within the storm drainage system. Conclusions: The on-site stormwater system with the associated Baysaver unit will mitigate any potential water quality impacts from the development of the site. Due to the location of the site within the overall Podunk River watershed, detention on the site is not warranted. APPENDIX A RUNOFF CURVE NUMBER COMPUTATION Version 2.00 Project 1520 User: gbs Date: County hartford State: ct Checked: Date: Subtitle: existing conditions Subarea : 1 ------------------------------------------------------------------------------- Hydrologic Soil Group COVER DESCRIPTION A B C D Acres (CN) ------------------------------------------------------------------------------- OTHER AGRICULTURAL LANDS Brush - brush, weed, grass mix poor 6.3(48) - - - Total Area (by Hydrologic Soil Group) 6.3 ------------------------------------------------------------------------------- SUBAREA: 1 TOTAL DRAINAGE AREA: 6.3 Acres WEIGHTED CURVE NUMBER: 48* ------------------------------------------------------------------------------- * - Generated for use by GRAPHIC method TIME OF CONCENTRATION AND TRAVEL TIME Version 2.00 i Project 1520 User: gbs Date: County hartford State: ct Checked: Date: Subtitle: existing conditions ------------------------------------------------------------------------------- Flow Type 2 year Length Slope Surface n Area Wp Velocity Time rain (ft) (ft/ft) code (sq/ft) (ft) (ft/sec) (hr) ------------------------------------------------------------------------------- Sheet 3.2 200 .013 j 0.301 Shallow Concent'd 325 .013 u 0.049 Time of Concentration = 0.35* --- Sheet Flow Surface Codes --- A Smooth Surface F Grass, Dense --- Shallow Concentrated --- B Fallow (No Res.) G Grass, Burmuda --- Surface Codes --- C Cultivated < 20 % Res. H Woods, Light P Paved D Cultivated > 20 % Res. I Woods, Dense U Unpaved E Grass-Range, Short J Range, Natural * - Generated for use by GRAPHIC method GRAPHICAL PEAK DISCHARGE METHOD Version 2.00 Project 1520 User: gbs Date: County hartford State: ct Checked: Date: Subtitle: existing conditions Data: Drainage Area 6.3 * Acres Runoff Curve Number 48 * Time of Concentration: 0.35 * Hours Rainfall Type III Pond and Swamp Area NONE I Storm Number I 1 1 2 1 3 1 4 1 5 1 ----------------------1------1------1------I------1------1 I Frequency (yrs) I 2 1 10 1 25 I 50 1 100 1 I I I I I I I 1 24-Hr Rainfall (in) 1 3.2 1 4.7 I 5.5 I 6.2 1 6.9 1 I I I I I I I I Ia/P Ratio 1 0.68 10.46 1 0.39 1 0.35 10.31 I I I I I I I 1 Used 1 0.50 1 0.46 10.39 1 0.35 1 0.31 1 I I I I I I I I Runoff (in) 10.09 ► 0.48 1 0.78 1 1.09 1 1.44 I I I I I I I I Unit Peak Discharge 10.331 10.388 10.499 10.564 10.608 1 I (cfs/acre/in) I I I I I I I I I I I I I Pond and Swamp Factorl 1.00 1 1.00 1 1.00 1 1.00 1 1.00 1 0.0% Ponds Used I I I I I I 1----------------------I------1------1------I------1------1 1 Peak Discharge (cfs) 1 0 ( 1 1 2 1 4 1 6 1 * - Value(s) provided from TR-55 system routines APPENDIX B TIME OF CONCENTRATION AND TRAVEL TIME Version 2.00 Project 1520 User: gbs Date: County hartford State: ct Checked: Date: Subtitle: developed conditions ------------------------------------------------------------------------------- Flow Type 2 year Length Slope Surface n Area Wp Velocity Time rain (ft) (ft/ft) code (sq/ft) (ft) (ft/sec) (hr) ------------------------------------------------------------------------------- Sheet 3.2 100 .013 f 0.283 Shallow Concent'd 100 .013 u 0.015 Open Channel 400 2 0.056 Time of Concentration = 0.35* --- Sheet Flow Surface Codes --- A Smooth Surface F Grass, Dense --- Shallow Concentrated --- B Fallow (No Res.) G Grass, Burmuda --- Surface Codes --- C Cultivated < 20 % Res. H Woods, Light P Paved D Cultivated > 20 % Res. I Woods, Dense U Unpaved E Grass-Range, Short J Range, Natural * - Generated for use by GRAPHIC method RUNOFF CURVE NUMBER COMPUTATION Version 2.00 Project : 1520 User: gbs Date: County : hartford State: ct Checked: Date: Subtitle: developed conditions Subarea : 1 ------------------------------------------------------------------------------- Hydrologic Soil Group COVER DESCRIPTION A B C D Acres (CN) ------------------------------------------------------------------------------- FULLY DEVELOPED URBAN AREAS (Veg Estab. ) Open space (Lawns,parks etc. ) Good condition; grass cover > 750 4.42 (39) - - Impervious Areas Paved parking lots, roofs, driveways 1.88 (98) - - Total Area (by Hydrologic Soil Group) 6.3 ------------------------------------------------------------------------------- SUBAREA: 1 TOTAL DRAINAGE AREA: 6.3 Acres WEIGHTED CURVE NUMBER: 57* ------------------------------------------------------------------------------- * - Generated for use by GRAPHIC method GRAPHICAL PEAK DISCHARGE METHOD Version 2.00 Project : 1520 User: gbs Date: County : hartford State: ct Checked: Date: Subtitle: developed conditions Data: Drainage Area 6.3 * Acres Runoff Curve Number 57 * Time of Concentration: 0.35 * Hours Rainfall Type III Pond and Swamp Area NONE I Storm Number I 1 1 2 1 3 1 4 1 5 1 {----------------------{------1------1------I------1------1 Frequency (yrs) I 2 1 10 1 25 1 50 1 100 1 I I I I I I i { 24-Hr Rainfall (in) 1 3.2 { 4.7 1 5.5 1 6.2 1 6.9 1 I I I I I I I 1 Ia/P Ratio 1 0.47 1 0.32 1 0.27 1 0.24 { 0.22 1 I I I I I I I 1 Runoff (in) 10.31 1 0.95 11.38 1 1.80 12.25 1 i I I I i I I 1 Unit Peak Discharge 10.373 10.599 10.640 10.657 10.671 1 I (cfs/acre/in) I I I I I I I I I I I I I 1 Pond and Swamp Factorl 1.00 1 1.00 1 1.00 1 1.00 1 1.00 1 i 0.0% Ponds Used I I I I I I 1----------------------1------1------1------i------1------1 Peak Discharge (cfs) I 1 1 4 1 6 I 7 1 9 1 * - Value(s) provided from TR-55 system routines APPENDIX C RECEIVED FEES 1 0 2003 INl;iivi `slFFLANDSAGENCY CONJERVX i 10H COMMISSION. February 3 , 2003 RE: Property located at 882 Ellington Road, South Windsor, CT TO WHOM IT MAY CONCERN: This is to verify that I hereby authorize the proposed regulated activity set forth in the attached Inland Wetlands application. Signed: i Robert W. Skinner, Jr. Owner 40 Buckley Road Salem, CT 06420 p`tOWM 8FA v <� O-P S-0� ?d&U&Ot 1540 SULLIVAN AVENUE • SOUTH WINDSOR, CT 06074 SOR.co TELEPHONE (860) 644-2511 To: Design Professionals 165 So. Satellite Road South Windsor, CT 06074 From: Jeffrey H. Folger—Environmental Planner/Conservation Officer Date: February 18, 2003 Re: App. #03-08P -Review of the proposed Podunk Ridge SRD—Plans dated 2/13/03. I have reviewed the proposed plan with the following initial comments: Proposed catch basins should have 4-foot sumps incorporated to maximize sediment retention prior to the Baysaver Unit. The detail sheet and the narrative show 2-foot sumps. A note shows that turf reinforcement matting will be used on slopes greater than 3:1. Please show the areas where the matting will be applied and a detail with proper installation measures. Please provide grading to direct overflow volumes from the infiltrators/raingardens to the storm system in the street. Please relocate the perimeter silt fencing in the northwest raingarden to the north, out of the excavation. A soil report has not been received showing soil types present on the site. This should include both upland and hydric soil types. Please provide a detail of the earthen berms proposed for interior E&S controls. The proposed raingardens could be incorporated into the landscaping scheme. Ornamental groundcovers and shrubs that can tolerate periodic inundation can provide esthetic options to turf grass. I am enclosing some literature that CC. Town Engineer Director of Planning IWA/CC MEMORANDUM To: South Windsor Inland Wetland/Conservation Commission. From: Jeffrey H. Folger—Environmental Planner/Conservation Officer Date: February 24, 2003 Re: App. #03-08P—Podunk Ridge Senior Residence Development(SRD) - Plans dated 01/30/03. The project is to build a 21-unit senior residence development,parking, and stormwater structures on 12.54 acres. Regulated activities include 4,000 sqft of disturbance in the Upland Review Area(URA). Site: The site is located in the Podunk River watershed. The southern 2/3 of the site is very level; with steep slopes associated with terrace escarpment geology along the western and northern portions. The main channel of the Podunk River abuts the site to the west and north. The level portion of the site is open meadow and has been used as an agricultural field historically. The western and northern slopes are wooded with a moderately dense understory. Large, mature trees are present throughout the slopes, typical of the escarpment areas in town (oak and beech). Wetlands as shown on the plan are located along the western and northern portions of the site. They are associated with and adjacent to the main channel of the Podunk River and its floodplain. The project proposes to encroach in the URA in two areas. The first area is north of proposed buildings to accommodate the stormwater outfall. Stormwater must be brought to the bottom of the slope in order to eliminate the chance of erosive cutting of the slope. Clearing and grading to bury the storm pipe will be necessary. The selected route is the shallowest portion of the slope and appears to be the remnants of an old roadbed. The wetland boundary shown in the field appears to be accurate. Major functions of the wetland system, are flood storage, groundwater recharge, wildlife habitat, finfish habitat, and sediment storage. The stream corridor provides a linear habitat for a diverse wildlife component. The wildlife values within the corridor would be considered moderate to high, however the dense residential development to the west and the east across Rt. 30 would tend to limit wildlife movement and concentrate movement along the corridor. Wildlife values within the rest of the site would be estimated as low to moderate due to the lack of habitat vegetation. There is ample sign of turkey and deer utilizing the piece as well as other suburban adapted wildlife. Impacts: The soils on the level portions of the site are listed as Windsor Loamy Fine Sand (WvA)by the Hartford County Soil Survey. This soil has an erosion potential listed as low. I would consider planned erosion controls to be adequate to contain potential migrating sediments. The soils on the slopes are listed as Te (Terrace Escarpment, fine sands over clay). This soil type has an erosion potential listed as high. Additional erosion control practices must be added to the plan to insure stability after work is done in this area. The site is proposed to be graded level. The construction activities associated with the construction of the dwellings and the road will by adequately contained by the perimeter erosion controls shown and proposed interior berms and temporary sediment basins. The applicant was strongly urged to remove all building construction activities within 50 feet of the top of the slopes. This was accomplished The construction of the stormwater outfall pipe and outlet will occur on a terrace escarpment slope. This area is highly erodable and will require a redesign of the current plan to outlet stormwater to a safe and stable portion of the stream bank. The location of the piping should be altered to avoid disturbance to several large(36"+dia.) beech trees that are present on the slope. Other than avoiding the large specimen trees,the installation of the pipe can be accomplished without any long term impacts to existing habitat vegetation. Stormwater quality is proposed to be addressed by the installation of a gross particle and floatables separator(Baysaver). Catch basins planned show 2-foot sumps. I have requested of the applicant that 4-foot sumps should be installed to provide an initial containment of significant quantities of road sediment prior to discharge to the Baysaver unit. Due to the deep well-drained nature of the soils present, there is ample opportunity to reduce runoff volumes to the storm system by infiltrating roof and yard runoff on the site. Several shallow depressions (rain gardens?)have been planned to capture and contain roof and yard runoff with the purpose of introducing the water into the ground. This method will be successful when there is no frost to inhibit vertical movement of water. It is important that any excess runoff not be directed to the surrounding slopes to avoid the chance of erosive scour. Land grading must be done to direct overflow from the depressions to the road drainage system. The landscaping plan lists Japanese barberry as a component of the planting plan. This plant has been demonstrated to be an invasive exotic plant species and should be removed from the planting plan. V `� G 0 Town O-PsotdA W)i 1540 SULLIVAN AVENUE • SOUTH WINDSOR, CT 06074 OR.CO TELEPHONE (860) 644-2511 To: Design Professionals 165 So. Satellite Road South Windsor, CT 06074 From: Jeffrey H. Folger—Environmental Planner/Conservation Officer Date: February 25, 2003 Re: App. #03-08P - Review of the proposed Podunk Ridge SRD—Plans dated 2/13/03. I have reviewed the proposed plan with the following additional comments: The proposed stormwater outfall prior to the river must be changed. The current plan would result in water outletting to a three-foot bank in the river. This would result in erosive scouring of the bank and pose a significant impact to the watercourse. The location of the outfall should be changed to an area where flows would not result in erosive scour and headcutting of the stream bank. A much more detailed plan of this area must be submitted. CC. Town Engineer Director of Planning IWA/CC RECEIVED FEB 2 0 2003 MEMORANDUM CNN D WETSOU"LgNfDS AGENCY CO COMMISSION To: Marcia Banach, Director of Planning From: Jeffrey B. Doolittle, P.E., Town Engineer t Date: Zt/27/03 RE: App 03-08P, Podunk Ridge SRD Application I have reviewed the Site Plan for the Podunk Ridge SRD dated January 30, 2003 and have the following comments: 1. Add a note that all debris on site (including debris buried just below the surface) will be cleaned up and removed from the site at the start of construction. 2. We have concerns about the slopes to the west side of this site which are highly erodable. These need to be protected during construction and in the future to prevent any slope failures. 3. Include a drainage structure table on the plans. This should list the structures, pipe sizes, T.F. and Inv. Elevations. Include a separate table with similar information for the sanitary sewers. 4. Add another sanitary sewer manhole in the vicinity of Sta 4+50 to eliminate the two locations where the sewer line crosses the water main on site. 5. Add a yard drain in the depression to the south west of unit 13 so water collected there can flow into the storm drainage system. 6. What is the purpose of the depressed areas to the south and north side of the proposed private road? These are very close to units. Are these to be"Rain Gardens"? These need to be labeled 7. Change the stop sign and bar in front of unit 4 to a yield sign. 8. 1 suggest the high point at Sta. 6+50 and the low point at Sta. 7+50 both be moved back about 25 feet (to Sta. 6+75 and Sta. 7+75 respectively). This will lengthen the distance between slope changes in the road to 100 feet in this area. 9. Include the size of the Baysaver unit necessary to treat the projected stormwater flows. 10. There are some ponding and flooding problems in Ellington Road in front of this property. These need to be remedied as much as possible with this development. 11. Verify that there are no obstructions to sight lines from the end of the private road onto Ellington Road due to utility poles or signs as well as trees and shrubs. 12. Will the Bituminous Sloping Curb show on Detail Sheet 2 be used throughout the site roadway? This needs to be clearly labeled on the plan. 13. Regarding the proposed sanitary sewer pump station: An emergency generator is required. The pump station needs to be enclosed with a security fence. More details are needed on the pump station. Who will monitor and maintain the station and respond to the alarms? How will O&M costs of pump station be funded? A Written O&M plan is needed. 14. More details are needed regarding the force main connection to the proposed manhole in Ellington Road. What specific type and size of pipe will be used for this force main? 15. If Town services for refuse and recycling are requested, the owner must provide executed Indemnification and Permission to Enter forms. 16. An application must be submitted to the WPCA for review and approval of this project. Please call me(x 245)if you have any questions. �I MEMORANDUM RECEIVED To: Marcia Banach, Director of Planning MAR W 3 2003 From: Jeffrey B. Doolittle, P.E., Town Engineer SOUTH WINDSORPLANNINGD PT. Date: 2/27/03 Yr RE: App 03-08P, Podunk Ridge SRD Application have reviewed the Site Plan for the Podunk Ride SRD dated Januar y ry 30, 2003 and have the following comments: 1. Add a note that all debris on site (including debris buried just below the surface) will be cleaned up and removed from the site at the start of construction. 2. We have concerns about the slopes to the west side of this site which are highly erodable. These need to be protected during construction and in the future to prevent any slope failures. 3. Include a drainage structure table on the plans. This should list the structures, pipe sizes, T.F. and Inv. Elevations. Include a separate table with similar information for the sanitary sewers. 4. Add another sanitary sewer manhole in the vicinity of Sta 4+50 to eliminate the two locations where the sewer line crosses the water main on site. 5. Add a yard drain in the depression to the south west of unit 13 so water collected there can flow into the storm drainage system. 6. What is the purpose of the depressed areas to the south and north side of the proposed private road? These are very close to units. Are these to be"Rain Gardens"? These need to be labeled 7. Change the stop sign and bar in front of unit 4 to a yield sign. 8. 1 suggest the high point at Sta. 6+50 and the low point at Sta. 7+50 both be moved back about 25 feet (to Sta. 6+75 and Sta. 7+75 respectively). This will lengthen the distance between slope changes in the road to 100 feet in this area. 9. Include the size of the Baysaver unit necessary to treat the projected stormwater flows. 10. There are some ponding and flooding problems in Ellington Road in front of this property. These need to be remedied as much as possible with this development. 11. Verify that there are no obstructions to sight lines from the end of the private road onto Ellington Road due to utility poles or signs as well as trees and shrubs. 12. Will the Bituminous Sloping Curb show on Detail Sheet 2 be used throughout the site roadway? This needs to be clearly labeled on the plan. 13. Regarding the proposed sanitary sewer pump station: An emergency generator is required. The pump station needs to be enclosed with a security fence. More details are needed on the pump station. Who will monitor and maintain the station and respond to the alarms? How will O&M costs of pump station be funded? A Written O&M plan is needed. r 14. More details are needed regarding the force main connection to the proposed manhole in Ellington Road. What specific type and size of pipe will be used for this force main? 15. If Town services for refuse and recycling are requested, the owner must provide executed Indemnification and Permission to Enter forms. 16. An application must be submitted to the WPCA for review and approval of this project. Please call me(x 245)if you have any questions. te d 3-crg Planning&Zoning Commission and Inland Wetlands Agency RECEIVED Town of South Windsor 1540 Sullivan Avenue MAR 13 2003 South Windsor, CT 06074 South Windsor INLAND WETLANDS AGENCY CONSERVATION COMMISSION March 12, 2003 To the members of the Planning and Zoning Commission and to the members of the Inland Wetlands Agency: My name is Roger Anderson and I live at 871 Ellington Road in South Windsor. I recently heard about the proposal to build an adult living complex called Podunk Ridge across the road from my property. There is a long-standing problem with water collecting and standing in the road in front of 887 Ellington Road,property owned by Tim and Kathy Friend. The property is just to the North of my property. During periods of heavy rain and during the spring thaw, water often covers more than fifty percent of the northbound lane and sometimes goes completely across the road. This creates a very dangerous situation for drivers, who either have to pull into the southbound lane to avoid the water or drive straight through the water holding tightly to their steering wheels. At times,when the temperature is just under freezing, the water is spread down the road by the tires and then freezes, creating an icy glaze on the road. Now, the situation will be made even worse with cars slowing down to turn into the new complex. Is there some way that the storm drain system for the new complex could be connected to the dry well in front of the Friend's house to eliminate the dangerous standing water? Thank you for considering my request. Sincerely, Roger H. Anderson 871 Ellington Road South Windsor, CT 06074 Oo3—Oc�� "RECEIVED March 10, 3003 MAR 2003 Mr. Kevin McCann, Chairman UVlNDSUR PtANNfNG DEPT; Planning&Zoning Commission Town Hall 1540 Sullivan Avenue South Windsor,CT 06074 Re: Podunk Ridge SRD Ellington Road South Windsor,CT Dear Mr.McCann: As a concerned citizen and abutting property owner, I am writing to voice my opinion regarding the proposed development plan on the 7.21 ±acre parcel on Ellington Road. It is inconceivable that the Planning & Zoning Commission and the Inland Wetland Agency would approve an application for twenty one (21) detached homes to be built on a parcel of land 7.21 acres in size. Whatever happened to the 1/2 acre lot size requirement for building lots that had been in effect up until recent years? The need to maintain constraints on high density housing is more critical now than ever to preserve some sense of quality of life in South Windsor. What are the constraints or regulations regarding high density housing? This letter does not even begin to address other issues such as traffic impact and adverse environmental concerns detrimental to the character of the neighborhood. The commissions are charged with insuring that the town's forward moving progress does not infringe on the quality of life of all other residents. Does the current development proposal now being considered insure this? There would be less opposition to the proposed plan if a scaled down version of the number of houses to be built were reduced by a third-down from 21 to 14. I urge P&Z and IWA to consider a more reasonable proposal that can be looked back upon without regrets. Today's decisions will have long lasting consequences if foresight is not exercised. By allowing over-development is to follow a pattern that some of our neighboring communities have created and are now having to deal with. Sincerely, } Jacquel e King cc: Elizabeth Warren Inland Wetland Agency/Conservation Commission •hi- MAN 1 2003 MEMORANDUM . idsor INLAND";t!L!,,gDSAGENCY To: Marcia Banach, Director of Planning CONSERVATION CUtv9MISSION From: Jeffrey B. Doolittle, P.E., Town Engineer Date: 3/11/03 RE: App 03-13P—Lynwood Estates Subdivision, Barber Hill Road I have reviewed the site plan application for the proposed Lynwood Estates Subdivision, and have the following comments: 1. Show how lots 1 and 2 meet the requirements of Zoning Regulations, Section 10.1 a. Specifically, show the 10,000 sq. ft buildable area and the 90 ft x 90 ft square exclusive of detention areas, easements, rights-of-way and slopes at or in excess of 15%. 2. On Lot 1, lower the driveway and reduce the fill requirements by moving the house closer to the road and/or by lowering the elevation of the house and garage. Alternately, add a low retaining wall in front of the house to reduce the fill needed. 3. Add another clean-out on the foundation drains at the first bend from each house 4. Better define and enlarge the swales along the sides of Lots 1 and 2 so the stormwater does not flow onto neighboring lots. Specify how these swales will be established, stabilized and maintained to prevent washouts and erosion onto the road or neighboring properties. 5. How will stormwater runoff from the driveways be handled? This needs to be directed off the pavement before it reaches the road. 6. Clarify the note for the Prop Settlement Area. Will this have the Sediment Trap shown on the detail page or some other structure/treatment? How was this area and the structure/treatment sized? 7. The driveway for Lot 3 appears to be in excess of 15% in a couple of places. This needs to be checked and revised to conform with Town Standards. 8. Land along the road in front of this subdivision needs to be deeded to the Town to provide a 25 foot ROW from the center line of the road. 9. Show on the plan where the existing house will be renovated to comply with the Zoning side yard setback requirements. 10.Show the reserve area for the existing leaching and septic system on Lot 2. 11.The final design of the septic systems must be reviewed and approved by the Town Sanitarian before building permits can be issued. Please call me if you have any questions. DESIGN PROFESSIONALS, INC. civil engineers .planners . surveyors . gis March 12,2003 Town of South Windsor RECetVED 1540 Sullivan Ave. South Windsor,Ct 06074 MAR I 2003 Attn:Ms.Marcia Banach SOuth Winds or Town Planner CONSERAT`oN�OMM SS CN Re: Podunk Ridge SRD Dear Marcia We have included 9 sets of revised plans for the above referenced site. The plans have been revised to address comments made by yourself,Jeff Doolittle,and Jeff Folger. Our responses to the like numbered comments are as follows: Planning Department Comments Dated 2-20-03 1. Iron pins indicated to be installed at all property corners not presently pinned. 2. Front yard setback dimension added to plans. 3. There is no sign proposed beyond the standard road sign. 4. We have discussed the depressions with Jeff Folger and the wetlands commission. Due to the location of the depressions near residential units,these areas will function as the lawn areas,and as such will be planted in grass. 5. The isolux diagram was submitted at design review. 6. The plans have been sealed by both a P.E.and L.S. 7. The infiltration areas are shallow depressions compared to a detention basin. The landscaping plan has been revised to provide the needed level of screening in this area. 8. A minimum of 19' of space has been provided in each driveway beyond the street or sidewalk for parking. 9. The site consists of the development of 21 units. As such,the traffic within this development will be very low. The site design with the sloped curbs,and numerous curb cuts provide ample opertunity for use of the sidewalks throughout the development by all units. Due to site constraints including addressing Jeff Folgers request to maintain a minimum of 50' of separating distance between the top of slope and the units,space was not left on the southern side for a sidewalk. 10. The existing shed is to remain. 11. As indicated during design review,the front porches protrude out in front of the garages. In order to be economically feasible for the future elderly residents of these units,costs need to be held down where possible. The higher the development costs,the higher the prices of the units. The more units that can be built in a particular development,the lower the cost of each unit. Due to the shape of the land,the units need to be as narrow as possible,and therefore the garages need to be where they are within the design. The desire by purchasers is for two car garages where possible. WPCA comments by Fred Shaw 1. WPCA approval will be required. 2. The emergency power generator will be provided, and enclosed in the Community building. 3. A detail of the force main connection has been included on the plans. 4. The maintenance and alarm reporting details will be discussed with Fred Shaw prior to the WPCA meeting. 5. We anticipate a usage based on 75 Gallons per person per day,and an occupancy of 2 people per unit of 3,150 gallons per day. Jeff Doolittle's Comments dated 1/27/03. 1. A note regarding cleaning of debris has been added to the plans. 2. A number of measures have been added to the plans in regards to the slope stabilization including turf reinforcement mats, and clay check dams.\ 3. A drainage structure,sanitary structure,and piping tables have been added to the plans. 4. An additional sanitary manhole was added. 5. A yard drain was added. 6. The depressions are labeled as infiltration areas. Due to the proximity to the units,they will be seeded as lawn areas. 7. Stop sign changed to yield sign. Due not enter signs also added. 8. Profile revised accordingly. 9. The Baysaver unit size added to the detail. 10. Plans revised to show grade to drain in these areas where possible. 11. Sight lines were verified in field. The sight line to the north is 524'. The limitation for this sight line is the road geometry and some existing vegetation on the site. The vegetation will be removed as part of the site development. The sight line to the south is 883'. There is an existing do not pass sign approximately 70'to the south of the proposed driveway that hinders sight lines. When we request a curb cut permit for this development,we will ask to relocate this sign. 12. The bituminous slope curb will be used throughout the roadway. Plans revised accordingly. 13. An O&M plan to be completed as part of the construction of the pump station. See WPCA responses also. 14. Details added to plans. 15. Client to do. 16. WPCA approval will be required. JeffFolger's Comments dated 2-18-03 1. 4' sumps incorporated into plans. 2. Plans revised to contain detail of slope mat installation and to show extents of installation. 3. Grades revised accordingly to provide overflow locations for infiltration areas. 4. Silt fence revised to be outside infiltration area. 5. We have requested a soil report from the soil scientist,and will be transmitted to Jeff once received. 6. Earthen berm detail added to plans. 7. Due to the location of the depressions near residential units,these areas will function as the lawn areas, and as such will be planted in grass. We hope that the revised plans fully address your comments. If there are any further questions or comments, please feel free to call. Sincerely, G len Semprebon,P.E. CC:Jeff Folger with 4 sets of revised plans. Enclosures: 165 South Satellite Road, South Windsor, Connecticut 06074 Tel: (860) 291-8755 • Fax: (860) 291-8757 MEMORANDUM RECEP . `) To: Marcia Banach, Director of Planning MAR 1 03 Jeff Folger, Environmental Planner soar ;r INLAND WETLAN o,AGENCY From: Jeffrey B. Doolittle, P.E., Town Engineer co"SERVATIONCpMMISSION Date: 3/19/03 RE: App 03-08P, Podunk Ridge SRD Application I have reviewed the revised Site Plan for the Podunk Ridge SRD dated March 6, 2003 and have the following comments: 1. Relocate the storm drainage and walking path behind units 4, 5, and 6 where they go down the hill. This is to minimize disturbance of this hill and allow for a better outlet location. From PCB #12 the storm drainage line should go south west to another type"CL"CB behind unit 5 and then turn west and go down the old path between the 36" trees to a MH before the 36" Beech tree. Then the storm drainage line will turn north west for a short distance to another MH near the existing PMH #2. Then the storm drainage line will turn north to a last MH and outlet near Wetlands Flag #30. The attached plan shows a sketch of this route. The walking path should follow this route to the proposed gazebo location. There need to be several water bars across the walking path to shed the water off the path and down the hill. 2. Include deeper drop inlet manholes to reduce the slopes of the storm drainage pipes down the hill. According to the Town Drainage Design Criteria, class V RCP is to be used where the pipe slope is 10%or greater. 3. The last length of pipe before the outlet should be revised to lower the velocity as much as possible. Suggest 24" corrugated plastic pipe with a slope of 0.7%. This pipe should be about 20 feet long to be sure the velocity is reduced before the outlet. 4. Provide revised drainage calculations according to the relocated drainage lines. 5. We recognize the grading to direct water away from Ellington Road, however, where will this water go? Add a yard drains in front of and to the east of units 1 and 21 so water from Ellington Road flows into the storm drainage system instead of across the yards or driveways of the units. 6. Regarding the proposed sanitary sewer pump station: Show an emergency generator. The pump station needs to be enclosed with a security fence. More details are needed on the pump station. Who will monitor and maintain the station and respond to the alarms? How will O&M costs of pump station be funded? A Written O&M plan is needed. 7. If Town services for refuse and recycling are requested, the owner must provide executed Indemnification and Permission to Enter forms. 8. An application must be submitted to the WPCA for review and approval of this project. Please call me(x 245)if you have any questions.