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Home My WebLink AboutSD-04-08 SD-04-09 - Supplemental - 0023 Harbor Ridge RoadForcier Aldrich & Associates. Inc. Consulting Engineers MEMORANDUM DATE: April 13, 2004 TO: Brian Robertson, City of South Burlington FROM: Wayne Elliott RE: Allen Road Water Tank - Final Plat Application #SD-04-09 City Engineers and City Arborist Comments FA&A Project 03032 The Engineer's comments were addressed on Drawing No. 1, Site Plan, as follows: The bench mark was added to the site plan. A telephone conversation was held between Craig Lambert and Mike Fulchino from North Country Landscaping. The comments were discussed as follows: The Red Maple has been changed to Burr Oak and the layouts remain the same. 2. The Canadian Hemlock was changed to White Spruce and the layouts remain the same. 3. The plantings are expected to be done by North Country Landscape. The City and/or CWD will contract directly with the landscaper and will supervise the plantings installaton. A note was added to the drawings as follows: "The plantings will be installed in accordance with the "City of South Burlington Arboricultural Specifications and Standards of Practice". 6 Market Place, Suite 2 Essex Junction, VT 05452 Phone: 802-879-7733 Fax: 802-879-1742 E-mail: info@forcieraldrich.com Printed on recycled paper ( C Forcier Aldrich & Associates, Inc. Consulting Engineers Transmitted to: Attention: Brian Robertson Company: City of South Burlington Address: We transmit: ® Herewith ❑ In accordance with your request For Your: ❑ Approval ❑ Distribution to Parties Material Transmitted: ® Drawings ❑ Specifications Date: April 23, 2004 Project No: 03032 Project: Allen Road Water Tank Final Plat Application #SD-04-09 ❑ Under separate cover via ❑ Herewith ❑ Review & Comment ❑ Records ® Use ❑ Shop Drawings ® Other Copies Date No. Description 1 4/13/2004 ---- Response to City Engineer and City Arborist Comments 1 4/14/04 1 Site Plans - Reduced (mylar) Remarks: Brian, As we discussed, the plat survey for this parcel had been previously recorded in Volume 96, Page 263. Copies: Jay Nadeau, City of South Burlington By. 6 Market Place, Essex Junction, Vermont 05452 802-879-7733 Fax 802-879-1742 Printed on recycled paper 8/06/01 CITY OF SOUTH BURLINGTON DEPARTMENT OF PLANPT 11lNG & ZONING 575 DORSET STREET SOUTH BURLINGTOi�i, VERMONT 05403 (802) 846-4106 FAX (802) 846-4101 April 21, 2004 Jay Nadeau City of South Burlington 575 Dorset Street South Burlington, VT 05403 Re: Water Tanks Dear Jay: Enclosed, please find a copy of the minutes from the March 16, 2004 Development Review Board meeting. If you have any questions, feel free to contact me. Sincerely, Betsy McDonough Administrative Assistant Encl. Cc: Wayne Elliott, Forcier Aldrich & Associates DEVELOPMENT REVIEW BOARD 16 MARCH 2O04 4�. Public Hearing: Preliminary Plat Application #SD-04-10 and Final Plat Application #SD-04-11 of City of South Burlington to amend a planned unit development consisting of a 115 Hoot high, 1,500,000 gallon water storage tank. The amendment consists of expanding the water tank to 2,100,000 and increasing the height to 150.5 ft., 1215 Dorset St: Ms. Kupfersmith asked about this being a conditional use. Mr. Belair referred to Table C-1, Public & Quasi Public Uses. Because this is part of a PUD, it becomes a permitted use. Ms. Kupersmith also asked about the impact of the height of tank on the neighborhood. Mr. Dinklage noted the Board is being asked to grant a height waiver. Mr. Boucher asked. if would make better sense to share the curb cut. Mr. Dinklage didn't know why the City and the developer of the adjacent property chose not to do that. Mr. Fay responded to the changing of landscaping from white spruce. Those trees are more of a maintenance issue because they get sap on the tanks which has to be cleaned off. Mr. Dinklage reminded the applicant that they will have to have a landscape professional prepare the landscaping plan. Mr. Belair said that has already been done. Mr. Boucher moved to approve Preliminary Plat #SD-04-10 and Final Plat #SD-04-11 of City of South Burlington subject to the stipulations in the draft motion. Ms. Quimby seconded. Motion passed unanimously. Preliminary Plat Application #SD-04-08 and Final Plat Application #SD-04- 09 of City of South Burlington to amend a planned unit development consisting of a 500,000 gallon water storage tank. The amendment consists of adding a second 500,000 gallon water storage tank, 23 Harbor Ridge Road: Mr. Dinklage referred to a letter from John & Elizabeth Leclair, neighbors of the site, who have concerns with the elimination of shrubs which will make the tanks more visible. The applicant noted that there are security concerns since 9/11. He also thought that what was removed was overgrowth, not the original plantings. Mr. Belair said he was comfortable that screening will be adequate. Mr. Dinklage noted that the Leclairs also questioned the color of the tanks. The applicant said the Dorset St tank is the preferred color. They would like the same color for these tanks, a grayish tone with blue. However, the old tank isn't due for repainting until 2014. He said he would talk with CWD about it. Ms. Kupersmith felt there should be more screening. After a brief discussion, the landscaping was left unchanged. -2- DEVELOPMENT REVIEW BOARD 16 MARCH 2O04 Mr. Boucher moved to approve Preliminary Plat #SD-04-08 and Final Plat 4SD-04-09 of City of South Burlington subject to the stipulations in the draft motion. Ms. Quimby seconded. Motion passed 5-1 with Ms. Kupersmith voting against. 6. Public Hearing: Final Plat Application #SD-04-13 of F & M Development Co., LLC, to amend a planned unit development consisting of: 1) 283 residential units in six buildings, 2) subdividing two parcels of 24.458 acres into eight lots, 3) a 90,000 sq. ft. building which will include 11,000 sq. ft. of retail, 150 seat 7500 sq. ft. restaurant, 70,000 sq. ft. general office, 2500 sq. ft. drive -in -bank, and ten residential units, 4) a 7200 sq. ft. addition to an indoor recreation facility, and 5) an existing 16,000 sq. ft. television studio and office building. The amendment consists of the substitution of exterior siding materials on a portion of the building, 409 Farrell St.: Mr. Farrell explained that there was a concern with long-term maintenance. He showed a sample of the siding and a sample of the brick. Mr. Dinklage asked Mr. Farrell to bring the Board up-to-date on the T-intersection. Mr. Farrell said he had met with Bruce Hoar. They feel the intersection is too "generous," but there is an issue with truck deliveries. They have talked about a paved island that can be driven over but would normally be driven around. Mr. Farrell said they will install this at their expense. Ms. Kupersmith asked about the cars parked on the road. Mr. Farrell said that is now illegal and cars will be towed if they park there. Mr. Farrell indicated they are still working with Cathedral Square on a senior project. They might also do some medical offices. Mr. Kupferman moved to approve Final Plat Application #SD-04-13 of F & M Development Co, LLC, subject to the stipulations in the draft motion. Ms. Quimby seconded. Motion passed unanimously. 7. Sketch plan Application #SD-04-07 of Piaazgalli Properties, LLC, for a planned unit development consisting of the construction of a 28,000 sq. ft. general office building, 118 Tilley Drive: Mr. Bouchard explained the 24 ft. proposed setback when the requirement is 35 ft. He said the existing building was built with the old setback (the zoning on that property was changed). Members had no problem with this as the only abutter is a parking lot. Mr. Bouchard said they are requesting 130 parking spaces. There are 141 next door. They have requested a change there to some medical office which will require more spaces and they are maxed out there. If the building they are now proposing went to medical offices, they would need 140 spaces, so they are asking for 130. Mr. Bouchard C 1"CITY OF SOUTH BURLINGTON DEPARTIVT OF PLNNi E'4G & ZOINE�iG 575 DORSET STREET SOUTH BUR,LINGTON, VERMONT 05403 (802) 846-4106 FAX (802) 846-4101 March 12, 2004 Jay Nadeau City of South Burlington 575 Dorset Street South Burlington, VT 05403 Re: Water Tanks Dear Jay: Enclosed is the agenda for next Tuesday's Development Review Board meeting and staff comments to the Board. Please be sure that someone is at the meeting on Tuesday, March 16, 2004 at 7:30 p.m. at the City Hall Conference Room, 575 Dorset Street. Sinc ely, tymond J. Belair Administrative Officer Encl. DEVELOPMENT REVIEW BOARD 20 JANUARY 2004 Mr. Dinklage suggested the Board agree to a 5 ft. side setback and then have staff work out the legal conditions so it can become 3 ft. Members agreed to eliminate condition " V. Stipulation #4 was added as follows: The house shall not have a rear basement access. Stipulation #5 was added as follows: The post -construction plan shall be revised to show the proposed house at least 5 feet from the south boundary line. Three copies of the plan shall be submitted. Original stipulation #4 becomes #6. Mr. Boucher moved to approve Miscellaneous Application #MS-03-05 of James Carris subject to the stipulations in the draft motion as amended above. Mr. Bolton seconded. Motion passed unanimously. 6. Sketch Plan Application #SD-03-82 of the City of South Burlington to amend a planned unit development consisting of a 500,000 gallon water storage tank. The amendment consists of adding a seconded 500,000 water storage tank, 23 Harbor Ridge Road: Mr. Elliott asked if they can combine preliminary and final plats. Mr. Dinklage said this can be done at the applicant's risk. Mr. Elliott noted they are requesting a height waiver. The new tank will be the same height as the existing tank. No other issues were raised. 7. Sketch Plan Application #SD-03-83 of the City of South Burlington to amend a planned unit development consisting of a 115 ft. high 1,500,000 gallon water storage tank. The amendment consists of expanding the water tank to 2,100,000 gallons and increasing the height to 150.5 ft., 1215 Dorset Street: Mr. Elliott noted there had been a concern expressed with aesthetics. He noted that no one can see over the tank at this time. They will raise it from the bottom and the new part of the tank will be on the bottom. It will not restrict views any more than now. -5- CITY OF SOUTH BURLINGTON DEVELOPMENT REVIEW BOARD \drb\sub\south budington\harborddge_water\final DEPARTMENT OF PLANNING & ZONING Report preparation date: March 9, 2004 Application received: February 13, 2004 CITY OF SOUTH BURLINGTON PRELIMINARY PLAT PLAN APPLICATION #SD-04-08 FINAL PLAT PLAN APPLICATION #SD-04-09 Agenda #5 Meeting Date: March 16, 2004 Applicant Owner City of South Burlington Champlain Water District 575 Dorset Street 403 Queen City Road So. Burlington, VT 05403 So. Burlington, VT 05403 Engineer Property Information Forcier Aldrich & Associates Tax Parcel 0770-00023-R 6 Market Place, Suite 2 R2 District Essex Junction, VT 05452 Location Ma V CITY OF SOUTH BURLINd. _N 2 DEPARTMENT OF DEVELOPMENT REVIEW BOARD PLANNING & ZONING \drb\sub\south buriington\harborridge water\final The City of South Burlington, hereafter referred to as the applicant, is requesting preliminary and final plat plan approval of a project to amend planned unit development consisting of a 500,000 gallon water storage tank. The amendment consists of adding a second 500,000 gallon water storage tank, 23 Harbor Ridge Road. The sketch plan was reviewed on January 20, 2004 (minutes enclosed). Associate Planner Brian Robertson and Administrative Officer Ray Belair, referred to herein as Staff, have reviewed the plans submitted on February 13, 2004 and have the following comments. Zoning District & Dimensional Requirements Table 9, Dimensional Requirements R2 Zoning District Required Proposed Min. Lot Size n/a n/a Max. Density 2 units/acre n/a �l Max. Building Coverage 20% 7.1% Max. Overall Coverage 40% 14.5% _ Min. Front Setback 30 ft. > 30 ft. Min. Side Setback 10 ft. > loft. �l Min. Rear Setback 30 ft. > 30 ft. Max. Front Yard Coverage 30% 18% ♦ Max. Building Height 35 ft. 60 ft. zoning compliance ♦ waiver required per Section 3.07(E)(2) of the Land Development Regulations Bartlett Brook Watershed Overlay District Pursuant to Section 12.03(C)(2) of the Land Development Regulations, the Development Review Board shall not approve any development proposal on lands within the Bartlett Brook Watershed unless it includes a stormwater management system designed to prevent an increase of the peak discharge and velocity of stream flow downstream of the development site. Accordingly, the applicant must provide a site plan and stormwater management system design details that comply with the requirements of Section 12.03(D) of the Land Development Regulations. In addition, the applicant must submit the stormwater management plans to Heindel and Noyes for inclusion in the Bartlett Brook Watershed computer model. Suggested improvements or modifications resulting from the Heindel and Noyes analysis should be incorporated prior to final plat approval by the Development Review Board. CITY OF SOUTH BURLINL JN 3 DEPARTMENT OF DEVELOPMENT REVIEW BOARD PLANNING & ZONING \drb\sub\south burl ingtonlharborridge waterlfinal The applicant has submitted the stormwater management plans to Heindel and Noyes for inclusion in the Bartlett Brook Watershed computer model. A report from Heindel and Noyes approving the stormwater aspect of the proposed project was submitted with the application (attached). SUBDIVISION CRITERIA Pursuant to Section 15.18 of the South Burlington Land Development Regulations, subdivisions shall comply with the following standards and conditions: Sufficient water supply and wastewater disposal capacity is available to meet the needs of the project According to Section 15.13 of the South Burlington Land Development Regulations, the existing public water system shall be extended so as to provide the necessary quantity of water, at acceptable pressure. The proposed structure will serve as a supply source for the City of South Burlington's municipal water supply. Therefore, this requirement is not applicable to the proposed project. Sufficient grading and erosion controls will be utilized during and after construction to prevent soil erosion and runoff from creating unhealthy or dangerous conditions on the subject property and adjacent properties. The proposed project shall adhere to standards for erosion control as set forth in Section 16.03 of the South Burlington Land Development Regulations. In addition, the grading plan shall meet the standards set forth in Section 16.04 of the South Burlington Land Development Regulations. 1. The proposed project shall adhere to standards for erosion control as set forth in Section 16.03 of the South Buffington Land Development Regulations. The project incorporates access, circulation, and traffic management strategies sufficient to prevent unreasonable congestion of adjacent roads. Access to this property is via a 12' wide gravel access drive extending from Harbor Ridge Road. The proposed project will utilize this existing access drive. The proposed project will not create significant traffic, and therefore staff feels the plans are sufficient with regard to this requirement. The project's design respects and will provide suitable protection to wetlands, streams, wildlife habitat as identified in the Open Space Strategy, and any unique natural features on the site. There are no wetlands, streams, wildlife habitat, or other unique natural features on the subject property. CITY OF SOUTH BURLIN& N 4 DEPARTMENT OF DEVELOPMENT REVIEW BOARD PLANNING & ZONING ldrb\sub\south burlington\harborridge water\final The project is designed to be visually compatible with the planned development patterns in the area, as specified in the Comprehensive Plan and the purpose of the zoning district(s) in which it is located. According to Section 4.02 of the Land Development Regulations, the purpose of the R2 District is to encourage moderate -density residential uses. Staff feels the proposed project is in compliance with the stated purpose of the R2 District, as outlined in the Land Development Regulations. Obviously, the water storage tanks are not a residential use; however, they will provide an increased water supply to accommodate residential development. Open space areas on the site have been located in such a way as to maximize opportunities for creating contiguous open spaces between adjoining parcels and/or stream buffer areas. Staff feels the layout of the proposed project meets this requirement. The layout of a subdivision or PUD has been reviewed by the Fire Chief or (designee) to ensure that adequate fire protection can be provided. The South Burlington Fire Chief has reviewed and approved the plans. Roads, recreation paths, stormwater facilities, sidewalks, landscaping, utility lines and lighting have been designed in a manner that is compatible with the extension of such services and infrastructure to adjacent landowners. This requirement is not applicable to the proposed project. Roads, utilities, sidewalks, recreation paths, and lighting are designed in a manner that is consistent with City utility and roadway plans and maintenance standards. The City Engineer is in the process of reviewing the final plans for this project. He did not raise nay major issues when he reviewed the sketch plans. There have been no major changes since the sketch plan review, so staff does not anticipate any significant issues to be raised by the City Engineer. Staff will forward the City Engineer's comments to the applicant as soon as we receive them. These comments shall be incorporated into the plans. 2. The plans shall be revised to incorporate the requests of the City Engineer, prior to recording the final plat plans. 3. Pursuant to Section 15.13(E) of the Land Development Regulations, any new utility lines, services, and service modifications shall be underground. The project is consistent with the goals and objectives of the Comprehensive Plan for the affected district(s). CITY OF SOUTH BURLIN� . _�N 5 DEPARTMENT OF DEVELOPMENT REVIEW BOARD PLANNING & ZONING \drb\sub\south burl ington\harborridge water\final The proposed project is consistent with the goals and objectives for the R2 District, as outlined in the South Burlington Comprehensive Plan. In addition, the proposed project is in conformance with the following objectives relating to public utilities, as outlined in the South Burlington Comprehensive Plan: • maintain the quality of existing utilities or services and remedy recognized deficiencies; • expand public utilities and services that compliment and reinforce the land use and development recommendations contained in Chapter V of the Comprehensive Plan; • adjust the capacity of public utilities and services in concert with that of other municipal services to ensure a stable and appropriate rate of development. SITE PLAN REVIEW STANDARDS Pursuant to Section 14.03(A)(6) of the Land Development Regulations, any PUD shall require site plan approval. Section 14.06 establishes the following general review standards for all site plan applications: The site shall be planned to accomplish a desirable transition from structure to site, from structure to structure, and to provide for adequate planting, safe pedestrian movement, and adequate parking areas. The applicant has submitted building elevation plans and visual simulations for the proposed project. The proposed structure will be large. However, it will be the same dimensions as the existing water storage tank on the site. In addition, there is a significant amount of natural screening on the site and the both the existing structure and the proposed structure are below the existing tree canopies. The site provides adequate planting areas, and the applicant is proposing to plant twenty (20) coniferous trees, five (5) deciduous trees, and eleven (11) Virginia Creeper Vine throughout the site. Pedestrian movement and parking areas are not applicable to the proposed project. Parking shall be located to the rear or sides of buildings to the greatest extent practicable. Parking areas are not applicable to the proposed project. Without restricting the permissible limits of the applicable zoning district, the height and scale of each building shall be compatible with its site and existing or adjoining buildings. The proposed structure is going to exceed the 35' height maximum for structures in South Burlington. The existing structure is 60' in height and the proposed structure is 60' in height. Thus, the new structure will be 25' taller than the maximum height limit in the City. The applicant has requested a height waiver from the Development Review Board pursuant to Section 3.07(E)(2) of CITY OF SOUTH BURLINt JN 6 DEPARTMENT OF DEVELOPMENT REVIEW BOARD PLANNING & ZONING \drb\sub\south burlington\harbonidge water\final the Land Development Regulations. The Board has to find that the proposed structure is in conformance with the planned character of the R2 District and that it will not detract unduly from public scenic view sheds. The subject property does not fall within any of the City's Scenic View Protection Overlay Districts, so the structure will not detract unduly from public scenic views from adjacent properties or public streets and walkways. In addition, the existing 60' structure has been there since 1971, so it has been part of the landscape for over thirty years. The applicant has submitted visual simulations of the proposed structure (attached). Staff strongly supports this height waiver request. Newly installed utility services and service modifications necessitated by exterior alterations or building expansions shall, to the extent feasible, be underground. Pursuant to Section 15.13(E) of the Land Development Regulations, any new utility lines, services, and service modifications shall be underground. The Development Review Board shall encourage the use of a combination of common materials and architectural characteristics, landscaping, buffers, screens and visual interruptions to create attractive transitions between buildings of different architectural styles. The applicant is proposing landscaping on the site. Outside of that, this requirement is not applicable to the proposed project. Proposed structures shall be related harmoniously to themselves, the terrain and to existing buildings and roads in the vicinity that have a visual relationship to the proposed structures. The proposed structure will be identical in appearance to the structure that currently exists. The proposed structure will be the same style, color, and height of the existing structure. In addition to the above general review standards, site plan applications shall meet the following specific standards as set forth in Section 14.07 of the Land Development Regulations: The reservation of land may be required on any lot for provision of access to abutting properties whenever such access is deemed necessary to reduce curb cuts onto an arterial of collector street, to provide additional access for emergency or other purposes, or to improve general access and circulation in the area. The access to the proposed project is via a 12' wide access drive off of Harbor Ridge Road. Staff does not feel it is necessary to require any additional access to abutting properties, due to the nature of the project. Electric, telephone and other wire -served utility lines and service connections shall be underground. Any utility installations remaining above ground shall be located so as to have a harmonious relation to neighboring properties and to the site. CITY OF SOUTH BURL.4 . ON 7 DEPARTMENT OF DEVELOPMENT REVIEW BOARD PLANNING & ZONING \drb\sub\south burlington\harborridu water\final Pursuant to Section 15.13(E) of the Land Development Regulations, any new utility lines, services, and service modifications shall be underground. All dumpsters and other facilities to handle solid waste, including compliance with any recycling or other requirements, shall be accessible, secure and properly screened with opaque fencing to ensure that trash and debris do not escape the enclosure(s). The proposed project does not include any dumpsters or other facilities to handle solid waste. Landscaping and Screening Requirements The applicant has stated that the proposed project will cost $280,000. Pursuant to Table 13-9 of the Land Development Regulations, the proposed project will require a minimum landscaping value of $8,100. The applicant has submitted a planting schedule on Sheet 1 of the plans. The applicant has also submitted a landscape budget to accompany this planting schedule. This budget was prepared by North Country Landscape and Garden Center and indicates that $11,170 of landscaping will be planted on the site. 4. The plans shall be revised to indicate the name of the landscape professional who prepared the landscape plan, prior to recording the final plat plans. The City Arborist reviewed the plans and provided comments dated March 12, 2004 (attached). 5. The plans shall be revised to comply with the requests of the City Arborist, prior to recording of the final plat plans. Staff recommends approval of Preliminary Plat application #SD-04-08 and Final Plat application #SD-04-09, conditional upon the applicant addressing the numbered items in the "Comments" Section of this report. Respectfully submitted, Brian Robertson, Associate Planner Copy to: Jay Nadeau, applicant Landscape RL mew Allen Rd Water Storage Tanks Forcier Aldrich & Associates 3/12/04 • Soils on this site tend to be heavy clay with poor drainage. Red Maple is not well suited to these soils and while Sugar Maple and Red Oak are growing naturally on the site, different species may be easier to plant and establish. Possible substitutions include: 1. Burr Oak 2. Swamp White Oak 3. Chinkapin Oak 4. American Elm `Princeton' or `Valley Forge' 5. Kentucky Coffee Tree • Canadian Hemlock doesn't tolerate poor drainage. Better choices include: 1. White Spruce 2. Black Spruce 3. Balsam Fir • A planting detail and specifications should be included in the plans co Lo O. f\ X U J U a U CD O N M U .0 O C O U a M O O O O N r N O EXISTING TANK WEST ELEVATION SCALE: NONE 0 C7 Z m I"- O N M O co O N .o a ca U m U NEW TANK WEST ELEVATION SCALE: NONE PION NEW TANK SOUTH ELEVATION SCALE: NONE LADDER Z z O O � 0 Z W W Y 2UCTION m Z o < O d' O Z Z �ZLj W �� Q PROPOSED GROUND O J fn ? J Q O W m fN Z O S r F- U O N - o DESIGNED WAE PROJECT NO. 0 3032 DRAWN JRB DRAWING N0. 2 CHECKED WAE DATE NOV. 2003 M U Cl ,X Lo U J C) a U 0 CD N M U c 0 c m U a N N N 0 0 N N O V 07700 00021 ALLEN ROAD 1 LAND CO. 01 640 64 01807 FARINA w T_ MG STORAGE RAGE TANK >�� AND � TE E745781C I "-1 t R I 1640 01809 o I I I I \ I APPAS SB �i I I REYpVEO. (Typ u 1 Q5 REMOVE A)1 DISPOSE OF EXISTING UNDERGROUND \ \17e\-4 '•r'�r � M� iITE AND ELECTRIC TO ONE FROM EXISTING CTRK: METER LOCATION TO NEW JUNCTION BOX `L N7 VAULT SB I \1 1 N N N n �m MOVE 1Gld DISPOSE OF EXISTING SB-3 n ,.� „�.� UNDERGROUND ELECTRIC FROM EXISTING 0 I ELECTRIC TRANSFORMER TO EXISTING I ,1 I I I CT AN,HELOC RECTRIC ME I I E \\ I I E�ECTRIIC MlE\TER 1 REIIGVE I PUMP, 1��-I_- ` \ \ \ .. FOUNDATIOPLACE � \ SUITABLE BACKFIµ ATE REMOVE &I2Nc NC� RR 1 1 AND 16' WIDE GATE \ I I\ / I i ioD� 0770 00025 IRISH EXISTING PLAN SCALE: 1 =40 ��n/1J\YI I I I I EXISTING 8" TANK DRAIN I OW Q I / .I 1Win D,! UN loSO g NEW 12 TEE Al I I Q I tg ,CATFi vAL Ul IINSTALL TWO (2) JUNCTION BOXE!I AND CONNECT NEW UNDERGROUNI COMMUNICATION AND ELECTRIC LINE! I(FROM VAULT) TO NEW UNDERGROUNI I COMMUNICA D CTRIC lNE 20' �I j I '1r �e C7{ EXISTING 4" DRAIN I I \ F ��1 VALVEIV D T I I 11� � � I I I I I I I RELOCATE EL' I C PAN AND CONNECT TO NEW Ut DERGROUN,0,ELFCTRK: 07700 00021 ALLEN ROAD 1 1�•' 1� / 01640 LAND CO. ' 0,807 FARINA I 0.5 MG STORAGE TANK .i>9x .il9x • NEW 8' DRAIN LINE TD EXI5101G 8' LINE I I I I I u u u N � Ijri 1 IV" \V SE MG IN STDRAG� \TAK 0770 00025 IRISH NEW 6' CHAIN LINK FENCE LINK FENCE -NEW 16' WIDE GATE ELECTRIC TRANSFORMER PROPOSED PLAN SCALE: 1 "=40' LEGEND L o 7R MU ICATION I I IN I I INSTALL EW UNDEFT��RGROUND I -�-(-� SMSEit�ME 38\EPIPE CIOUPLWC TO 1640 ' II TRANSISTION FROM 8' D.I. CL52 TO 8' 01809 I SOR3� PVC, 1 I PAPPAS YI ELL LIN 319x4 DOUBLE NET COCONUT � w BLANKET (DEGRADABLE EROSION \\CONTROL BLANKET) ON CUT SLOPE � 4 I I N I uu N�� II I 10 REIIAW I\APPROXIMATE ( PROPERTY LINE NEW 12' WIDE VEGETATED ACCESS DRNEWAY EXISTING FEATURESPROPOSED EXISTING CONTOUR .... 441 NEW CONTOUR ......ir FEATURES WATERLINE ........ W CHAIN LINK FENCE ... -.0 p_ OWNER CHAMPLAIN R DISICT STORM DRAIN ...... Ste- WATERLINE ........ W 403 QUEEN CITY PARK ROAD SO. BURLINGTON, VT 05403 CHAIN LINK FENCE ...-0_ COMMUNICATION LINE ... UGC APPLICANT COMMUNICATION LINE ...—UGC—ELECTRIC LINE ...... —UGE— CITY OF SOUTH BURLINGTON 575 DORSET STREET ELECTRIC LINE ..... UGE SO. BURLINGTON, VT 05403 PROPERTY LINE ...... ------------ pL_ ZONING DISTRICT: HI SIDENTIAL 7 RIGHT-OF-WAY LINE ... — �ow— SOIL BORING .... LOT COVERAGE: SB-1 BUILDINGS: EXISTING: 3.6% PROPOSED: 7,1% PLANTING SCHEDULE EXISTING: .% PROPOSED: 14.5% FRONT YARD: EXISTING. 0% PROPOSED: 18% • CANADIAN HEMLOCK (6'-7') 0 SUGAR MAPLE, RED MAPLE, OR RED OAK (2--2 1/2- CALIPER) EASTERN RED CEDAR (4') GRAPHIC SCALE w I . VIRGINIA CREEPER VINE (3 GALLON) ( IN FEET) • PLANTING SCHEDULE PREPARED BY NORTH COUNTRY LANj1 k GARDEN CENTER. Y z Q w G_D Q O � Q o O N CC Z � w w Q Z F- F- w Z Z a J IL h DESIGNED PROJECT NO. JDR 03032 DRAWN JRB DRAWING NO. CHECKED WAE J I DATE NOV. 2003 David & Elizabeth LeClair 24 Harbor Ridge Road ,youth Burlington, VT 05403 (802) 864- 7932 March 10, 2004 Mr. Raymond J. Blair Administrative Officer City of South Burlington Department of Planning & Zoning 575 Dorset Street South Burlington, VT 05403 Dear Mr. Blair: We received your letter of March 2, 2004, advising us of a Public Hearing on Tuesday, March 16, 2004. We will be out of town so we will not be able to attend the meeting. I did call your office and spoke with Brian who informed me that we could submit a letter for you to read during this hearing. We would appreciate it if you could read our letter in our absence. We first want to say how deeply disappointed we were to learn that they want to put another 500,000 gallon water storage tank next to the existing one on 23 Harbor Ridge Road. As I'm sure you are aware, these storage tanks are quite an eye sore and when we built our house on 24 Harbor Ridge Road 10 years ago, we were well aware of the existing tank in our front yard. We never thought there would ever be the possibility of another one on this property. Brian did spend some time with me on the phone explaining the process that has been going on and how the decision was made to install another one at this site. We are fully aware that at this point in the process, there really is nothing we can do because the decision really has been made to install another one. We would like to suggest that they change the color. This color does not blend in well with the landscape surrounding the tank and makes it even more unpleasant to look at. Also, we would hope you recommend that they spend quite a bit of money on landscaping. There use to be a lot of shrubs camouflaging the current tank, but in the last couple of years, they have come and cut down a lot of it out which only makes the tank stand out even more. We would also like to say that we find it amazing that the city can come in and put in an infrastructure of this magnitude into an existing and beautiful residential neighborhood. As you are aware, we pay an extremely high amount in our property taxes to live here and you can come in and do what you want to decrease the value of our home, at the same time our taxes continue Mr. Raymond J. Blair March 10, 2004 Page 2 to increase. We had our house refinanced last year and they actually deducted money because of the existing water tank in our front yard. We can only imagine what they will do when they see two of them. Thank you for letting us voice our opinion on this very disturbing situation. Sincerely, David & Elizabeth LeClair PUBLIC HEARING SOUTH BURLINGTON, DEVELOPMENT REVIEW BOARD The South Burlington Development Review Board will hold a public hearing at the South Burlington City Hall Conference Room, 575 Dorset Street, South Burlington, Vermont on Tuesday, March 16, 2004, at 7:30 P.M. to consider the following: 1. Preliminary plat application #SD- 04-10 and final plat application #SD-04-11 of City of South Burlington to amend a planned unit development consisting of a 115- foot high 1,500,000 gallon water storage tank. The amendment con- sists of expanding the water tank to 2,100,000 gallons and increasing the height to 150.5 ft, 1215 Dorset Street. 2. Preliminary plat application 4SD- 04-08 and final plat application #SD-04-09 of City of South Burlington to amend a planned unit development consisting of a 500,000 gallon water storage tank. The amendment consists of adding a second 500,000 gallon water storage tank, 23 Harbor Ridge Road. 3. Final plat application #SD-04-13 of F & M Development Co, LLC to amend a planned unit development consisting of: 1) 283 residential units in six (6) buildings, 2) subdi- viding two (2) parcels of 24.458 acres into eight (8) lots, 3) a 90,000 sq ft building which will include 11,000 sq ft of retail, 150 seat 7500 sq ft restaurant, 70,000 sq ft general office, 2500 sq ft drive -in -bank, and ten (10) resi- dential units, 4) a 7200 sq ft addi- tion to an indoor recreational facil- ity, and 5) an existing 16,000 sq ft television studio & office building. The amendment consists of the substitution of exterior siding materials on a portion of the build- ing, 409 Farrell St. Copies of the applications are available for public inspection at the South Burlington City Hall. John Dinklage, Chairman South Burlington Development Review Board February 25, 2004 Permit Number SD- - CITY OF SOUTH BURLINGTON APPLICATION FOR FINAL SUBDIVISION PLAT REVIEW All information requested on this application must be completed in full. Failure to provide the requested information either on this application form or on the plans will result in your application being rejected and a delay in the review before the Development Review Board. For amendments, please provide pertinent information only. 1) OWNER OF RECORD (Name as shown on deed, mailing address, phone and fax #) Champlain Water District 403 ueen City Park Road So. Burlington, VT 05403 - -0435 2) LOCATION OF LAST RECORDED DEED (Book and page #)_ Volume 96 Page 263 3) APPLICANT (Name, mailing address, phone and fax #)_ City of South Burlington 575 Dorset Street, So. Burlington, VT 05403 T, 846-4106 F- 846-4101 4) CONTACT PERSON (Name, mailing address, phone and fax #)_ Jail Nadeau..City of South Burlington VT 403 Queen City Park Road So Burlington VT 05403 T.864-7454 F:864-0435 5) PROJECT STREET ADDRESS:_ 23 Harbor Eidge Road 6) TAX PARCEL ID # (can be obtained at Assessor's Office) Sheet 65, 0770-)0023R 7) PROJECT DESCRIPTION a) Existing Uses on Property (including description and size of each separate use)_ 500,000 gallon water storage tank b) Proposed Uses on property (include description and size of each new use and existing uses to remain) Addition of a twin 500,000 gallon storac ie tank. The existing tank is to remain. c) Total building square footage on property (proposed buildings and existing buildings to remain) 2,770 sq. ft. d) Height of building & number of floors (proposed buildings and existing buildings to remain, specify if basement and mezzanine)60' e) Number of residential units (if applicable, new units and existing units to remain) Not applicable. fl Number of employees & company vehicles (existing and proposed, note office versus non - employees): Not applicable. office g) Other (list any other information pertinent to this application not specifically requested abo please note if Overlay Districts are applicable): Located in Bartlett Brook Overla District e, Refer to attached report. 8) LOT COVERAGE a) Building: Existing_ 3 a___ % Proposed _% b) Overall (building, Parking, outside storage, etc) Existing—--% Proposed 1�% c) Front yard (along each street) Existing- 0% proposed_ 1_ g _% 9) COST ESTIMATES a) Building (including interior renovations): $ 280,000 b) Landscaping: $ 8 100 c) Other site improvements (please list with cost): Additional 100,000 to include: waterline sitework and other a urtenenaces. s 10) ESTIMATED TRAFFIC Not applicable. a) Average daily traffic for entire property (in and out): b) A.M. Peak hour for entire property (in and out): c) P.M. Peak hour for entire property (In and out): 11) PEAK HOURS OF OPERATION: 12) PEAK DAYS OF OPERATION: 13) ESTIMATED PROJECT COMPLETION DATE: October 2005 14) PLANS AND FEE Plat plans shall be submitted which shows the information listed on Exhibit A attached. Five (5) regular size copies reduced copy (11" x 17") of the plans must be submitted. A subdivision application fee shall be paid to the City at the time If submitting the final plat application (see Exhibit A). P and one 2 I hereby certify that all the information requested as part of this application has been submitted and is accurate to the best of my knowledge. SIGNATURE OF APPLICANT SIG URE OF PRROWNER Do not write below this line DATE OF SUBMISSION: I have reviewed this preliminary plat application and find it to be: Lople Incomplete w If-viimr, ur uesignee 3 �-�'y Date EXHIBIT A FINAL PLAT The following information must be shown on the plans. Please submit five (5) copies and o copy 0 1 " x 17") of the plan. Failure to provide the following information will result in our application being rejected and a delay in the review before the Development Review Board. one reduced ng a f al plat amendment, please submit onlyin y pp ication pertinent information. Please provide (on separate nshe t) a list of all abutters to the project property and mailing addresses. o Complete survey of property by a licensed land surveyor drawn to scale (20 ft. is preferred). o Name, license number, seal, and contact number of licensed land surveyor & date Prepared. o Survey data (acreage, property lines, zoning boundaries, watercourse, base flood elevation, e o Location of easements, public lands, r.o.w.s, sidewalks, and public or private street w/names o Five foot contours (existing and finished) etc.) o Location and size of any existing sewers (including septic tanks and ( ) drains on the property to be subdivided. ) water mains, culverts and o Location, names and widths of existing and proposed streets, private ways, sidewalks, curb c paths, easements, parks, and other public opens spaces. uts, o Numerical and graphical scale, date last revised, and north arrow. o Details of proposed connection with existing water supply or alternative water supply. o Details of proposed connection with the existing sanitary sewage disposal system or ade uate provisions for on -site disposal of septic wastes. q o Details of storm water facilities in the form of a drainage plan. o Details of all proposed bridges or culverts. o Location of temporary markers. o All parcels of land proposed to be dedicated or reserved for public use and associated conditions. o A list of waivers desired (if any). o Development timetable (including number of phases and start and completion dates). o A report addressing planned residential/unit development criteria of the Zoning Regulations. o Proposed landscaping schedule (number, variety and size). o Location of abutting properties, fire hydrants, existing buildings, existing landscaping o Number and location of parking spaces ( see Section 26.25 of the Zoning Regulationss o Number and location of handicapped spaces (see Section 26.253(a) of the Zoning Re) lation o Lot coverage information: Building footprint, total lot, and front yard s) o Exterior lighting details (cut sheets). All lights should be downcasting and shielded. o Dumpster locations (dumpsters must be screened) o Bicycle rack as required under Section 26.253(b) of the zoning regulations o If restaurant is proposed, provide number seats and square footage of floor area provided for Patron use but not containing fixed seats Final Plat Application APPLICATION FEE $ 85.00* *Includes $10.00 recording fee 4 Forcier Aldrich & Associates Inc. Consulting Engineers 0000 P R OF ' , A HOIJV fJ VAL, Transmitted to: Attention: Ray Belair Company: City of South Burlington Address: We transmit: ® Herewith ❑ In accordance with your request For Your: ❑ Approval ❑ Distribution to Parties Material Transmitted: ® Drawings ❑ Specifications Date: February 13, 2004 Project No: 03032 Project: New Twin Allen Road Water Storage Tank ❑ Under separate cover via ❑ Herewith ❑ Review & Comment ❑ Shop Drawings ® Other ❑ Records ® Use Copies Date I No. I Description 5 2/13/2004 ---- Application for Preliminary Subdivision Plat Review 5 2/13/2004 ---- Application for Final Subdivision Plat Review 1 2/2004 ---- Reduced Drawings Remarks: Copies: Jay Nadeau, South Burlington Water Dept. Chuck Hafter, City of South Burlington Jim Fay, CWD By: � ��Le 6 Market Place, Essex Junction, Vermont 05452 802-879-7733 Fax 802-879-1742 Printed on recycled paper 8/06/01 AWX A' D LAr/1 COMPANY, RM r n '\ NBJ7714' i . n Jm� NOES.• VOLUME , PAGE 539 0 / 2p / I • \ 1. REFER TO A PLAN EN717Lf0 1HREE LOT S/fiiiNS/ON FOR FRANX S. IRISH (EST.;7E V 9CRN/CC S. / / \ 200 ALLEN ROAD, BY VERMONT LAND S:RVEYORS DATED JANUARY 26, 1.99. RECORU7 IN ";..P :'OLL4!E I I P 4JO PAGE 7J. / 50 FT RIGHT Of NAY FOR / IIl I / / 25 HARBOR RIDGE RD. , ' CHAMPLAIN WA7E1 D/SMICT. I DEWY & 1RENE IRISH / I /I VOLUME 218 PAGE 166 SCALE : 1 INCH = 40 FEET i 0 ... 40 80 120 160 200 I SURVEY RESEARCH, T EVIDENCIS BASED UPON AE FOUND,TAL T RECORD PHYSICAL AND PLANS % % AS WED. LEGEND r vEf4yo IRON PIPE FOUND ��oF T— BAR FOUND 0 T— BAR iw, * y IRON PIPE TO BE SET CHAIN UNK FENCE �ND 501N�'` (-� v SUBD/Vl&ON PLAT cL'IHAMPIAE T W.11-72 -92 '6727 f(G-F HARBOR RDGE ROAD SOUTrl BURLINGTON, WfeW'JT VEW0 TLeAND SMVAt,"WlfS 4050 WILL1 TON GOAD SOUTH BURLINGTON, VERMONT. 05403 (802) 852-5661 DATE JANUARY 14, 20C •1 . �.` SURVEYED M.W. & B.H. ORA WN BRADFORD L. HOLDEN CHECKED MARK V. WARD PROJECT 2004 Permit Number SD-�- CITY OF SOUTH BURLINGTON APPLICATION FOR PRELIMINARY SUBDIVISION PLAT REVIEW All information requested on this application must be completed in full. Failure to provide the requested information either on this application form or on the plans will result in your application being rejected and a delay in the review before the Development Review Board. 1) OWNER OF RECORD (Name as shown on deed, mailing address, phone and fax #) Champlain Water District. 403 Queen City Park Road, So. Burlington, VT 05403 T:864-7454 F:864-0435 2) LOCATION OF LAST RECORDED DEED (Book and page #) Volume 96, Page 263 3) APPLICANT (Name, mailing address, phone and fax #) City of South Burlington, 575 Dorset Street. So. Burlington. VT 05403 T: 846-4106 F: 846-4101 4) CONTACT PERSON (Name, mailing address, phone and fax #) Jay Nadeau, City o T:864-7454 F:864-0435 5) PROJECT STREET ADDRESS: 23 Harbor Ridge Road 6) TAX PARCEL ID # (can be obtained at Assessor's Office) Sheet 65, 0770-00023R 7) PROJECT DESCRIPTION a) Existing Uses on Property (including description and size of each separate use) 500.000 -gallon water storage tank b) Proposed Uses on property (include description and size of each new use and existing uses to remain) Addition of a twin 500,000 gallon storage tank. The existing tank is to remain. c) Total building square footage on property (proposed buildings and existing buildings to remain) 2,770 sq. ft. d) Height of building & number of floors (proposed buildings and existing buildings to remain, specify if basement and mezzanine) 60' e) Number of residential units (if applicable, new units and existing units to remain) Not applicable. f) Number of employees & company vehicles (existing and proposed, note office versus non -office employees): Not applicable. g) Other (list any other information pertinent to this application not specifically requested above, please note if Overlay Districts are applicable): Located in Bartlett Brook Overlay District. Refer to attached report. h) List any changes to the subdivision, such as property lines, number of units, lot mergers, etc.: 8) LOT COVERAGE a) Building: Existing_ 3.6 % Proposed 7.1 b) Overall (building, parking, outside storage, etc) Existing 3.6 % Proposed 14.5 c) Front yard (along each street) Existing 0 % Proposed 18 % 9) COST ESTIMATES a) Building (including interior renovations): $ 280,000 b) Landscaping: $ 8,100 c) Other site improvements (please list with cost): Additional $100,000 to include: waterlines, sitework, and other appurtenances. 10) ESTIMATED TRAFFIC Not applicable. a) Average daily traffic for entire property (in and out): b) A.M. Peak hour for entire property (in and out): c) P.M. Peak hour for entire property (In and out): 11) PEAK HOURS OF OPERATION: Not applicable. 12) PEAK DAYS OF OPERATION: Not applicable. 13) ESTIMATED PROJECT COMPLETION DATE: October 2005 14) PLANS AND FEE Plat plans shall be submitted which shows the information listed on Exhibit A attached. Five (5) regular size copies and one reduced copy (11" x 17") of the plans must be submitted. A subdivision application fee shall be paid to the City at the time of submitting the final plat application (see Exhibit A). 2 M I hereby certify that all the information requested as part of this application has been submitted and is accurate to the best of my knowledge. OF APPLICANT OF PROPV-RTY OWNER Do not write below this line DATE OF SUBMISSION: I have reviewed this preliminary plat application and find it to be: Complete Incomplete Director of Planning & Zoning or Designee Date 3 EXHIBIT A PRELIMINARY PLAT The following information must be shown on the plans. Please submit five (5) copies and one reduced copy (I I" x 17") of the plan. Failure to provide the following information will result in your application being rejected and a delay in the review before the Development Review Board. Please provide (on separate sheet) a list of all abutters to the project property and mailing addresses. o Complete survey of property by a licensed land surveyor drawn to scale (20 ft. is preferred). o Name, license number, seal, and contact number of licensed land surveyor & date prepared. o Survey data (acreage, property lines, zoning boundaries, watercourse, base flood elevation, etc.) o Location of easements, public lands, r.o.w.s, sidewalks, and public or private street (w/names) o Five foot contours (existing and finished) o Location and size of any existing sewers (including septic tanks) and water mains, culverts and drains on the property to be subdivided. o Location, names and widths of existing and proposed streets, private ways, sidewalks, curb cuts, paths, easements, parks, and other public opens spaces. o Numerical and graphical scale, date last revised, and north arrow. o Details of proposed connection with existing water supply or alternative water supply. o Details of proposed connection with the existing sanitary sewage disposal system or adequate provisions for on -site disposal of septic wastes. o Details of storm water facilities in the form of a drainage plan. o Details of all proposed bridges or culverts. o Location of temporary markers. o All parcels of land proposed to be dedicated or reserved for public use and associated conditions. o A list of waivers desired (if any). o Development timetable (including number of phases and start and completion dates). o A report addressing planned residential/unit development criteria of the Zoning Regulations. o Proposed landscaping schedule (number, variety and size). o Location of abutting properties, fire hydrants, existing buildings, existing landscaping o Number and location of parking spaces ( see Section 26.25 of the Zoning Regulations) o Number and location of handicapped spaces (see Section 26.253(a) of the Zoning Regulations) o Lot coverage information: Building footprint, total lot, and front yard o Exterior lighting details (cut sheets). All lights should be downcasting and shielded. o Dumpster locations (dumpsters must be screened) o Bicycle rack as required under Section 26.253(b) of the zoning regulations o If restaurant is proposed, provide number seats and square footage of floor area provided for patron use but not containing fixed seats APPLICATION FEE Preliminary Plat Application $ 75.00 & $10 Additional Fees for Major Subdivisions Residential Major Subdivision Unit Fee $5 per unit & $10 All Other Major Subdivision Unit Fees $40 per lot &$10 4 CITY OF SOUTH BURLINGTON NEW TWIN ALLEN ROAD WATER STORAGE TANK LIST OF ABUTTERS 0770-00025 R Irish, Dewey Jr. & Irene 25 Harbor Ridge Rd. So. Burlington, VT 05403 07700-00024 R LeClair, David & Elizabeth 24 Harbor Ridge Road So. Burlington, VT 05403 0770-00022 R Campbell-Mohn, Frederick & Celia 22 Harbor Ridge Rd. So. Burlington, VT 05403 0770-00021 R Allen Road Land Company, Inc. 410 Shelburne Rd. So. Burlington, VT 05403 1640-01807 R Farina, James & Janet 1807 Spear St. So. Burlington, VT 05403 1640-01809 R Pappas, Mary 1809 Spear St. So. Burlington, VT 05403 CITY OF SOUTH BURLINGTON NEW TWIN ALLEN ROAD WATER STORAGE TANK LIST OF WAIVERS 1. Maximum building height per Section 3.07 (E) (2) of the Land Development regulations. 2. Bicycle rack as required under Section 26.253 (b) of the zoning regulations. ALLEN ROAD TWIN WATER STORAGE TANK Article 3.07 Height of Structures E. Height Waiver for Structures in the R1, R1-PRD, R1-Lakeshore, R2, R4, R7, Lakeshore Neighborhood, Queen City Park and Southeast Quadrant Districts. The existing Allen Road water storage tank is located in the R2 district and was built in 1971. The existing tank is approximately 60 feet high (including the rood and a new twin tank of similar size will be constructed adjacent to the existing tank. The new twin tank is planned to exceed the maximum height for structures specified under 3.07 (D) as part of a planned unit development. A waiver from the maximum height requirements of this section is requested from the Development Review Board. Drawing No. 2 is enclosed which indicates the elevations of the existing and proposed tanks. The new tank will be similar in type and size to the existing tank. Co -location of the new tank was selected as the preferred approach to minimize the impacts on public views. This site is located lower than Spear Street and the location of the new tank will not restrict the views of adjacent properties. View perspectives taken on October 8, 2003 are enclosed which indicate the existing and proposed views. The existing tank was not visible from Spear Street and it is not expected that the new tank will be visible from this location. From Allen Road looking north, the existing tank is visible through the large mature trees. The new twin tank will be visible from this location but will be in a similar line of sight as the existing tank. The existing tank is barely visible through the existing trees looking east and south from Baycrest Drive and Road. The new tank will be slightly visible from these locations, but is well hidden by the existing trees. Article 14.10 Conditional Use Review: General Provisions and Standards The Development Review Board shall review the proposed conditional use for compliance with all applicable standards as contained in these regulations. The proposed conditional use shall meet the following standards: (1) The proposed use, in its location and operation, shall be consistent with the planned character of the area as defined by the City of South Burlington Comprehensive Plan. This site has been the location of an operating water storage tank since 1971 Maintaining and providing adequate long-term water storage capacity at this site is a necessary public use. (2) The proposed use shall conform to the stated purpose of the district in which the proposed use is to be located. (a) The capacity of existing or planned municipal or educational facilities. Expansion of the water storage tank is necessary to provide adequate long-term distribution storage for the City "Main Service" water distribution system. This expanded water storage tank does not impact educational facilities. (b) The essential character of the neighborhood or district in which property is located, or the ability to develop adjacent property for appropriate uses. The site is located in the Residential 2 district and the existing water storage tank has been a prominent feature at this site for the past 30 years. Addition of a new twin tank at the site will not impact the ability to develop adjacent property for appropriate uses. (c) Traffic on roads and highways in the vicinity. Once the expanded water storage tank is operational, there will be no traffic impacts to roadways and highways in the vicinity. (d) Bylaws in effect. Expansion of the existing water storage tank will not adversely affect bylaws in effect. (e) Utilization of renewable energy resources. Expansion of the existing water storage tank will not adversely affect renewable energy resources. (f) General public health and welfare. Expansion of the existing water storage tank will not adversely affect general public health and welfare. Article 14.11 Conditional Use Review: Specific Uses and Standards A. Public Utility, Power Generating Plants, Substations, and Transmission Lines Review of such use shall include a review of 1) the availability of alternative sites and 2) an evaluation of impacts and proposed mitigation measures related to safety, aesthetics, and noise. A "Feasibility Study of Water Storage Tank Sites" was completed in November 2001 to investigate alternative sites for expansion of the water storage for the "Main Service" area. Suitable sites were limited to locations with an existing ground elevation above 320 feet which is required to construct a storage tank which will maintain minimum water system pressures. A total of three (3) sites were evaluated for short and long term storage needs. Each of these sites were compared based on nine (9) criteria and ranked accordingly. For fulfilling the long-term storage requirements, use of the existing Allen Road site was determined to be the preferred site. This site has been the location of a water storage tank since 1971. Co -location is preferred to utilize existing property, access, and infrastructure. By re -using existing infrastructure, the impacts on safety and noise are minimized. The existing tank is lower in elevation and is therefore not visible from Spear Street. Other than the northerly view from Allen Road, the existing tank is well screened by mature trees in the west and north directions. These existing trees extend above the tank and will be maintained to the extent possible. Addition of a new tank of similar type at this site minimizes the impacts on the aesthetics as shown in the enclosed view perspectives. No Text a e � x e� Als 44 e n el � x "x a e W y�� i �� d'r.� � w1�4 r:�n � ¢✓ g s � � r ^� y. ,way 11 \/�%�/} .�� /�� ? /�� ( � \ \ w 2 No Text No Text m I I r-j N UUUNTRY LANDSCAPE PAGE 02 North Country Landscape & Garden Center 135 TALCOTT ROAD WILLISTON, VT 05495 (802)878-7272 - FAX (802)878-9303 February 12, 2004 Champlain Water District Queen City Park Road So. Burlington, Vt 05403 Plant List Landscape Proposal Allen Road.- Storage Tank 11 Virginia Creeper 3 gal 12 Hemlock 6-7' 2 Sugar Maples 2-2 1/2" 5 Eastern Red Cedar 4' Total Cost*** $8,100.00 * * * Total Cost includes d1l labor, equipment and planting materials. Nursery Stock is guaranteed for one year form date planted. ALLEN ROAD WATER STORAGE TANK South Burlington, Vermont BARTLETT BROOK WATERSHED ANALYSIS November 21, 2003 HEINDEL AND NOYES Consulting Hydrogeologists, Engineers and Environmental Scientists • Consulting Hydrogeologists • Engineers Heindel and Noyes Environmental Scientists H N po. Box 64709 Burlington, Vermont 05406 4709 802-658-0820 Fax 802-860-1014 ALLEN ROAD — WATER STORAGE TANK South Burlington, Vermont BARTLETT BROOK WATERSHED ANALYSIS EXECUTIVE SUMMARY November 21, 2003 The proposed water storage tank is located next to an existing water storage tank at 23 Harbor Ridge Road in South Burlington. The proposal includes construction of one tower with a total site area of 0.92 acres. Impervious surface area will increase from 0.03 acres to 0.06 acres within the 0.92-acre parcel. Under existing conditions, land coverage of the property includes grass, woods and grass combination, as well as paved areas. The hydrologic soil group for this area is C. Stormwater runoff from the site resulting from the 25-year storm event was evaluated using the Bartlett Brook Stormwater Model. Peak runoff from the site is not predicted to increase despite the minor increase in impervious surface areas associated with the new development. Flow rates within the associated downstream reaches are also not predicted to increase. Given the fact that this proposed development does not pose any significant alterations to the Bartlett Brook flow regime, we recommend the City approve the stormwater aspects of the proposed project with no modifications. • Consulting Hydrogeologists • Engineers Heindel and Noyes Environmentcdl Scientists H N PO. Box 64709 Bwlington, Vermont 05406-4709 802-658-0820 Fax 802-860-1014 ALLEN ROAD WATER STORAGE TANK South Burlington, Vermont BARTLETT BROOK WATERSHED ANALYSIS SUMMARY OF FINDINGS - November 21, 2003 1. Heindel & Noyes (H&N) has completed a stormwater runoff analysis of the Bartlett Brook Watershed. This analysis was conducted to assess the potential changes in peak runoff and peak discharge associated with the proposed water storage tank development on 23 Harbor Ridge Road in South Burlington, Vermont. A site location map is included in Appendix 1. 2. Stormwater runoff was analyzed using the Bartlett Brook Stormwater Model, which was modified to reflect the proposed development. The Bartlett Brook Model was first developed by H&N in 1984 using the USDA Soil Conservation Service TR-20 model. The model has been updated in the intervening years so it is now executed using the HydroCad software package. The Model includes existing development as well as approved but unbuilt development within the watershed. 3. Analysis conducted by H&N relied upon information provided by Forcier Aldrich & Associates, Inc. It is assumed that all information provided by Forcier Aldrich & Associates, Inc. is accurate. This includes but is not limited to: 1) pre- and post - development land coverage (impervious surface areas, land coverage types, soil types), 2) hydrology (on -site water movement and drainage), 3) grading, and 4) other landscape features and site planning characteristics that may impact on - site and off -site stormwater management. ' The Model does not account for recent changes within the Bartlett Brook Watershed that are due to construction activities along U.S. Route 7. ALLEN ROAD PROPERTY - BARTLETT BROOK WATERSHED ANALYSIS 2 4. The design storm used in this analysis was the 25-year, 24-hour storm event, which in the Bartlett Brook Watershed is 4.0 inches of rainfall over a 24-hour period. This storm event is the design standard used for all Bartlett Brook runoff evaluations performed in the past by H&N, and is the design storm specified in South Burlington's stormwater zoning ordinance for the watershed. 5. Peak runoff rates and volumes were determined for pre- and post -development conditions for the subcatchment. 6. Bartlett Brook Model outputs for pre- and post -development conditions are included in Appendices 2 and 3, respectively. 7. Pre -development, the subcatchment (Link #9304 in model) has a discharge rate of 2.98 cfs. Post -development, the subcatchment (Link #9305 in model) has a discharge rate of 2.98 cfs. 8. Pre -development, peak discharge from the subcatchment to the downstream reach (#365 in model) is 61.26 cfs. Post -development, peak discharge to the downstream reach is also 61.26 cfs. There is no predicted downstream increase for the 25-year storm event. U:\PR0JECTS\Bart1ettBrk\A11en Road Water Tower\AIIenRoadWT_BB_Report(November_2003).doc N Water Tower at Allen Road W E South Burlington, Vermont Heindel aMndENo es USGS Site Location Map S 2000 0 2000 Feet __ �V�c VRM cAT ON Sca Nw bm 21, 2003 S &Nlh c:�AllenlaetlWamwatar.epr imo ' Data for L9304 Allen Rd Water Tower Pre 20031117 Page 1 TYPE II 24-HOUR RAINFALL= 4.00 IN iPrepared by Heindel and Noyes, Inc -- Burlington, Vermont 19 Nov 03 { H droCAD 5.11 001547 c 1986-1999 Applied Microcomputer Systems WATERSHED ROUTING OSUBCATCHMENT D REACH Q POND SUBCATCHMENT 1 = ALLEN ROAD WATER TOWER PRE I I LINK -> REACH 1 Data for L9304 Allen Rd Water Tower Pre 20031117 Page 2 TYPE II 24-HOUR RAINFALL= 4.00 IN 19 Nov 03 Prepared by Heindel and Noyes, Inc -- Burlington, Vermont ` H droCAD 5.11 001547 c 1986-1999 A -lied Microcomputer Systems SUBCATCHMENT 1 ALLEN ROAD WATER TOWER PRE PEAK= 2.98 CFS @ 11.83 HRS, VOLUME= .14 AF ACRES CN .20 86. OPEN, GRASS <50� POOR, HSG C .03 98 PAVED, HSG C .69 76 WOODS & GRASS FAIR, HSG C .92 79 SCS TR-20 METHOD TYPE II 24-HOUR RAINFALL= 4.00 IN SPAN= 10-20 HRS, dt=.1 HRS Comment Tc (min) Method DIRECT ENTRY Segment ID: P R- Data for BB3 Reach -A 20020829 Page 1 TYPE II 24-HOUR RAINFALL= 4.00 IN Prepared by Heindel and Noyes, Inc -- Burlington, Vermont 19 Nov 03 H droCAD 5.11 001547 c 1986-1999 Lkpplied Microcomputer Systems WATERSHED ROUTING 314 301 O O �v 312 y 306 316 � 310 •�' 303 `1' 313 311 �I 307 I �Y 319 30 32 362 9]03 366 371 372 364 3B 1\ vx� 360 37 369 302 3B3 374 \ � 3B4 I80 �\j13B9 a 39 y 0 SUBCATCHMENT ❑ REACH A POND LINK O SUBCATCHMENT 301 SUBCATCHMENT 306 SUBCATCHMENT 310 SUBCATCHMENT 312 SUBCATCHMENT 314 SUBCATCHMENT 319 SUBCATCHMENT 362 SUBCATCHMENT 366 SUBCATCHMENT 368 SUBCATCHMENT 369 SUBCATCHMENT 371 = Quayle Run (#1) -> REACH 303 = Quayle Run (#2) -> REACH 307 = Harborview RO to Reach K (minus Barone -> REACH 311 = S.F.H. Dev Runoff -> REACH 313 = Keari Lane Runoff -> REACH 315 = Baycourt Condos -> POND 320 = Harbor Heights RO -> REACH 364 = GMP -> POND 381 = SE Parking -> POND 378 = North Parking -> POND 378 = Larkin Center Field -> POND 381 Data for BB3 Reach -A 20020829 Page 2 TYPE II 24-HOUR RAINFALL= 4.00 IN Prepared by Heindel and Noyes, Inc -- Burlington, Vermont 19 Nov 03 H drOCAD 5.11 001547 c 1986-1999 Applied Microcom uter Systems SUBCATCHMENT 372 = Watershed 1 -> POND 381 SUBCATCHMENT 373 = Watershed 2 -> POND 381 SUBCATCHMENT 374 = Sunset Hotel -> POND 378 ` SUBCATCHMENT 383 = Shearer Parking -> REACH 389 ISUBCATCHMENT -> REACH 389 384 = Reyes SUBCATcHmENT 390 = Reach H watershed -> REACH 365 REACH 303 = Reach R -> REACH 305 REACH 305 = Reach Q -> POND 309 I REACH 307 = Reach P -> POND 309 ` REACH 311 = Reach K -> REACH 318 REACH 313 = Reach M -> REACH 318 REACH 315 = Reach L/N -> REACH 318 REACH 318 I = Reach J -> REACH 323 REACH 323 = Reach I -> POND 381 REACH 364 = Reach G -> POND 381 REACH 365 = Reach H -> REACH 364 REACH 382 = Reach D -> REACH 389 REACH 389 = Reach C -> POND 390 REACH 3999 = Reach A POND 309 = Reach 0 -> REACH 323 POND 320 = Baycourt Condos -> REACH 323 POND 378 = Larkin Pond -> POND 381 POND 381 I = Reach E and Culvert at Rt 7 -> REACH 382 w POND 390 = Reach B (Brigham Road) -> REACH 3999 ILINK 100 = BB1 Reach-Z and everything above -> REACH 389 LINK 200 = BB2 Reach-S and everything above -> REACH 305 LINK 9301 = Barone 5.2 acres 20020130 -> REACH 311 i 6 LINK 9302 = Lakeview at Pillsbury (outflow from main p -> REACH 364 Data for BB3 Reach -A 20020829 Page 3 TYPE II 24-HOUR RAINFALL= 4.00 IN Prepared by Heindel and Noyes, Inc -- Burlington, Vermont 19 Nov 03 HydroCAD 5.11 001547 (c) 1986-1999 Applied Microcomputer Systems LINK 9303 = Lakeview at Pillsbury Post I -> REACH 364 LINK 9304 = Allen Rd Water Tower Pre -> REACH 365 I Data for BB3 Reach -A 20020829 Page 4 TYPE II 24-HOUR RAINFALL= 4.00 IN 19 Nov 03 I Prepared by Heindel and Noyes, Inc -- Burlington, Vermont H droCAD 5.11 001547 c 1986-1999 Applied Microcom uter Systems I REACH 364 Reach G Qin = 62.76 CFS @ 12.15 HRS, VOLUME= 5.37 AF IQout= 59.60 CFS @ 12.28 HRS, VOLUME= 5.34 AF, ATTEN= 5%, LAG= DEPTH END AREA DISCH (FT) (SQ-FT) (CFS) 0.00 0.00 0.00 .35 2.47 8.23 .70 5.68 28.12 1.05 9.64 59.61 1.51 15.89 119.54 2.10 25.96 234.26 2.80 40.56 429.08 3.50 58.12 697.12 REACH 365 6' x 3.5' CHANNEL SIDE SLOPE= .33 n= .04 LENGTH= 1750 FT SLOPE= .04 FT/FT Reach H 7.7 MIN STOR-IND+TRANS METHOD PEAK DEPTH= 1.05 FT PEAK VELOCITY= 6.2 FPS TRAVEL TIME = 4.7 MIN SPAN= 3-23 HRS, dt=.04 HRS Qin = 61.26 CFS @ 12.05 HRS, VOLUME= 3.94 AF Qout= 56.26 CFS @ 12.17 HRS, VOLUME= 3.93 AF, ATTEN= 8%, LAG= 6.9 MIN DEPTH END AREA DISCH (FT) (SQ-FT) (CFS) 0.00 0.00 0.00 .35 2.47 8.23 .70 5.68 28.12 1.05 9.64 59.61 1.51 15.89 119.54 2.10 25.96 234.26 2.80 40.56 429.08 3.50 58.12 697.12 6' x 3.5' CHANNEL SIDE SLOPE= .33 n= .04 LENGTH= 1500 FT SLOPE= .04 FT/FT STOR-IND+TRANS METHOD PEAK DEPTH= 1.01 FT PEAK VELOCITY= 6.1 FPS TRAVEL TIME = 4.1 MIN SPAN= 3-23 HRS, dt=.04 HRS IData for BB3 Reach -A 20020829 Page 5 TYPE II 24-HOUR RAINFALL= 4.00 IN 19 Nov 03 Prepared by Heindel and Noyes, Inc --Burlington, Vermont H droCAD 5.11 001547 c 1986-1999 Applied Microcomputer Systems LINK 9304 Allen Rd Water Tower Pre Qout= 2.98 CFS @ 11.83 HRS, VOLUME= .14 AF, SPAN= 10-20 HRS, dt=.1 HRS SUBCATCHMENT 1 from L9304 Allen Rd Water Tower Pre 20031117 "ALLEN ROAD WATER TOWER PRE" Data for L9305 Allen Rd Water Tower Post 20031117 Page 1 TYPE II 24-HOUR RAINFALL= 4.00 IN Prepared by Heindel and Noyes, Inc -- Burlington, Vermont 19 Nov 03 H droCAD 5.11 001547 c 19B6-1999 Applied Microcom uter S stems WATERSHED ROUTING OSUBCATCHMENT ❑ REACH A POND I I LINK SUBCATCHMENT 1 = ALLEN ROAD WATER TOWER POST -> REACH 1 Data for L9305 Allen Rd Water Tower Post 20031117 Page 2 TYPE II 24-HOUR RAINFALL= 4.00 IN 19 Nov 03 Prepared by Heindel and Noyes, Inc -- Burlington, Vermont H droCAD 5.11 001547 c 1986-1999 AP lied Microcom uter S stems SUBCATCHMENT 1 ALLEN ROAD WATER TOWER POST PEAK= 2.98 CFS @ 11.83 HRS, VOLUME= .14 AF SCS TR-20 METHOD ACRES CN 86 OPEN, GRASS <50% POOR, HSG C TYPE II 24-HOUR .17 .06 98 PAVED, HSG C RAINFALL= 4.00 IN SPAN= 10-20 HRS, dt=.1 HRS .69 76 WOODS & GRASS FAIR, HSG C .92 79 Comment Tc (min) Method 2 DIRECT ENTRY Segment ID: P64T Page 6 Data for BB3 Reach -A 20020829 TYPE II 24-HOUR RAINFALL= 4.00 IN 19 Nov 03 Prepared by Heindel and Noyes, Inc -- Burlington, Vermont IH droCAD 5.11 001547 c 1986-1999 Applied Microcom uter Systems WATERSHED ROUTING------------ 314 381 O W 312 315 I �310 3B3 `�' \ 313 311 Jr 307 \ I ` y yy�L 319 200 '�� 3B5 y 31 B !� � 32 362 9]Bi 366 37i 364 3011 1 I 36B 37 \ hJ 369 JJ3rrB2 3B3 374 � C 384 � 3B9 IBB y 39 y 0 OSUBCATCHMENT SUBCATCHMENT 301 SUBCATCHMENT 306 SUBCATCHMENT 310 SUBCATCHMENT 312 SUBCATCHMENT 314 SUBCATCHMENT 319 SUBCATCHMENT 362 SUBCATCHMENT 366 SUBCATCHMENT 368 SUBCATCHMENT 369 SUBCATCHMENT 371 ❑ REACH Z� POND Q1 LINK = Quayle Run (#1) -> REACH 303 = Quayle Run (#2) -> REACH 307 = Harborview RO to Reach K (minus Barone -> REACH 311 = S.F.H. Dev Runoff -> REACH 313 = Keari Lane Runoff -> REACH 315 = Baycourt Condos -> POND 320 = Harbor Heights RO -> REACH 364 -> POND 381 = GMP = SE Parking -> POND 378 = North Parking -> POND 378 = Larkin Center Field -> POND 381 Data for BB3 Reach -A 20020829 Page,7 TYPE II 24-HOUR RAINFALL= 4.00 IN Prepared by Heindel and Noyes, Inc -- Burlington, Vermont 19 Nov 03 HrdroCAD 5.11 001547 (c) 1986-1999 Applied Microcomputer Systems SUBCATCHMENT 372 = Watershed 1 -> POND 381 SUBCATCHMENT 373 = Watershed 2 -> POND 381 SUBCATCHMENT 374 = Sunset Hotel -> POND 378 SUBCATCHMENT 383 = Shearer Parking -> REACH 389 SUBCATCHMENT 384 = Reyes -> REACH 389 SUBCATCHMENT 390 = Reach H watershed -> REACH 365 REACH 303 = Reach R -> REACH 305 REACH 305 = Reach Q -> POND 309 REACH 307 = Reach P -> POND 309 REACH 311 = Reach K -> REACH 318 REACH 313 = Reach M -> REACH 318 REACH 315 = Reach L/N -> REACH 318 REACH 318 = Reach J -> REACH 323 REACH 323 = Reach I -> POND 381 REACH 364 = Reach G -> POND 381 REACH 365 = Reach H -> REACH 364 REACH 382 = Reach D -> REACH 389 REACH 389 = Reach C -> POND 390 REACH 3999 = Reach A -> POND 309 = Reach O -> REACH 323 POND 320 = Baycourt Condos -> REACH 323 POND 378 = Larkin Pond -> POND 381 POND 381 = Reach E and Culvert at Rt 7 -> REACH 382 POND 390 = Reach B (Brigham Road) -> REACH 3999 LINK 100 = BB1 Reach-Z and everything above -> REACH 389 LINK 200 = BB2 Reach-S and everything above -> REACH 305 LINK 9301 = Barone 5.2 acres 20020130 -> REACH 311 LINK 9302 = Lakeview at Pillsbury (outflow from main p -> REACH 364 LData for BB3 Reach -A 20020829 Page 9 TYPE II 24-HOUR RAINFALL= 4.00 IN 19.Nov 03 I Prepared by Heindel and Noyes, Inc -- Burlington, Vermont H droCAD 5.11 001547 c 1986-1999 Api2li.ed Microcomputer Systems REACH 364 Reach G Qin = 62.76 CFS @ 12.15 HRS, VOLUME= 5.37 AF ATTEN= 5%, LAG= 7.7 MIN IQout= 59.60 CFS @ 12.28 HRS, VOLUME= 5.34 AF, DEPTH END AREA DISCH (FT) (SO -FT) (CFS) 0.00 0.00 0.00 .35 2.47 8.23 .70 5.68 28.12 1.05 9.64 59.61 1.51 15.89 119.54 2.10 25.96 234.26 2.80 40.56 429.08 3.50 58.12 697.12 REACH 365 6' x 3.5' CHANNEL SIDE SLOPE= .33 '/' n= .04 LENGTH= 1750 FT SLOPE= .04 FT/FT Reach H STOR-IND+TRANS METHOD PEAK DEPTH= 1.05 FT PEAK VELOCITY= 6.2 FPS TRAVEL TIME = 4.7 MIN SPAN= 3-23 HRS, dt=.04 HRS Qin = 61.26 CFS @ 12.05 HRS, VOLUME= 3.94 AF Qout=.56.26 CFS @ 12.17 HRS, VOLUME= 3.93 AF, ATTEN= 8%, LAG= 6.9 MIN DEPTH END AREA DISCH (FT) (SQ-FT) (CFS) 0.00 0.00 0.00 .35 2.47 8.23 .70 5.68 28.12 1.05 9.64 59.61 1.51 15.89 119.54 2.10 25.96 234.26 2.80 40.56 429.08 3.50 58.12 697.12 6' x 3.5' CHANNEL SIDE SLOPE= .33 n= .04 LENGTH= 1500 FT SLOPE= .04 FT/FT STOR-IND+TRANS METHOD PEAK DEPTH= 1.01 FT PEAK VELOCITY= 6.1 FPS TRAVEL TIME = 4.1 MIN SPAN= 3-23 HRS, dt=.04 HRS Data for BB3 Reach -A 20020829 Page 10 TYPE II 24-HOUR RAINFALL= 4.00 IN 19 Nov 03 Prepared by Heindel and Noyes, Inc -- Burlington, Vermont H droCAD 5.11 001547 c 1986-1999 Ap lied Microcomputer systems LINK 9305 Allen Rd Water Tower Post Qout= 2.98 CFS @ 11.83 HRS, VOLUME= .14 AF, SPAN= 10-20 HRS, dt=.1 HRS SUBCATCHMENT 1 from L9305 Allen Rd Water Tower Post 20031117 "ALLEN ROAD WATER TOWER POST" CITY ENGINEER'S COMMENTS Allen Road Water Tank (Harbor Ridge) 03/18/2004 1. Bench marks shall be noted on the site plan. CITY OF SOUTH BURLINGTON DEPARTMENT OF PLANNING & ZONING 575 DORSET STREET SOUTH BURLINGTON, VERMONT 05403 (802) 846-4106 FAX (802) 846-4101 March 18, 2004 Jay Nadeau City of South Burlington 575 Dorset Street South Burlington, VT 05403 Re: Preliminary Plat Application #SD-04-08 and Final Plat Application 4SD-04-09 Dear Mr. Nadeau: Enclosed, please find a copy of the Findings of Fact and Decision of the above referenced project approved by the South Burlington Development Review Board on March 16, 2004 (effective 3/16/04). Please note the conditions of approval, including that the amended final plat plans must be recorded in the land records within 90 days (must be submitted by 6/14104) of this approval or this approval is null and void. If you have any questions, please contact me. Sincerely, m,. v.- Brian Robertson, Associate Planner Encl. DEVELOPMENT REVIEW BOARD 20 JANUARY 2004 Mr. Dinklage suggested the Board agree to a 5 ft. side setback and then have staff work out the legal conditions so it can become 3 ft. Members agreed to eliminate condition "f'. Stipulation 94 was added as follows: The house shall not have a rear basement access. Stipulation 45 was added as follows: The post-construction npn shall be revised to show Three copies of the plan the proposed house at least 5 feet from the south boundary lne shall be submitted. Original stipulation 44 becomes #6. Mr. Boucher moved to approve Miscellaneous Application #MS-03-05 of James Carris subject to the stipulations in the draft motion as amended above. Mr. Bolton seconded. Motion passed unanimously. 6. Sketch Plan Application #SD-03-82 of the COO of twaBterlington to amend storage tanks The planned unit development consisting of a 500, gallon amendment consists of adding a seconded 500,000 water storage tank, 23 Harbor Ridge Road: Mr. Elliott asked if they can combine preliminary and final plats. Mr. Dinklage said this can be done at the applicant's risk. Mr. Elliott noted they are requesting a height waiver. The new tank will be the same height as the existing tank. No other issues were raised. 7. Sketch Plan Application #SD-03-83 of the City of South Burlington to amend a planned unit development consisting of a 115 hehigh water'tank too 2,100,000 gallons and 0 gallon water storage tank. The amendment consists of expandsng ncreasing the height to 150.5 ft., 1215 Dorset Street: IT. Elliott noted there had been a concern expressed with aesthetics. He noted that no e can see over the tank at this time. They will raise it from the bottom and the new part the tank will be on the bottom. It will not restrict views any more than now. -5- DEVELOPMENT REVIEW BOARD 20 JANUARY 2004 Mr. Bolton asked if the tank will be lighted. Mr. Elliott said not at this point. Mr. Bolton suggested they check with the FAA regarding the Airport approach cone. Mr. Elliott said they also want to combine preliminary and final plats on this application. Mr. Belair noted that a waiver will be required on height. The side setback is not met but this is an existing condition. As there was no further business to come before the Board, the meeting was adjourned at 9:50 p.m. Date CITY OF SOUTH BURLINGTON DEPARTMENT OF PLANNING & ZONING DEVELOPMENT REVIEW BOARD Report preparation date- January 13, 2004 \drb\sub\south burlington\harborridge_water\sketch Application received- December 3, 2003 CITY OF SOUTH BURLINGTON SKETCH PLAN APPLICATION #SD-03-82 Agenda #6 Meeting Date: January 20, 2004 A_ pplicant Owner City of South Burlington Champlain Water District 575 Dorset Street 403 Queen City Road So. Burlington, VT 05403 So. Burlington, VT 05403 Engineer Property Information Forcier Aldrich & Associates Tax Parcel 0770-00023-R 6 Market Place, Suite 2 R2 District Essex Junction, VT 05452 Location Map Ar- "'^ *♦ i ti n t � a CITY OF SOUTH BURLINGTON 2 DEPARTMENT OF DEVELOPMENT REVIEW BOARD PLANNING & ZONING \drb\sub\south burlington\harborridge water\sketch The City of South Burlington, hereafter referred to as the applicant, is requesting sketch plan review of a project to amend planned unit development consisting of a 500,000 gallon water storage tank. The amendment consists of adding a second 500,000 gallon water storage tank, 23 Harbor Ridge Road. Associate Planner Brian Robertson and Administrative Officer Ray Belair, referred to herein as Staff, have reviewed the plans submitted on December 3, 2003 and have the following comments. Zoning District & Dimensional Requirements Table 1. Dimensional Requirements R2 Zoning District 11 Require J Proposed Min. Lot Size n/a n/a Max. Density 2 units/acre n/a �1 Max. Building Coverage 20% 7.1 % Max. Overall Coverage 40% 14.5% Min. Front Setback 30 ft. > 30 ft. �l Min. Side Setback 10 ft. > loft. �l Min. Rear Setback 30 ft. > 30 ft. �l Max. Front Yard Coverage 30% 18% ♦ Max. Building Height 35 ft. 60 ft. zoning compliance ♦ waiver required per Section 3.07(E)(2) of the Land Development Regulations Bartlett Brook Watershed Overlay District Pursuant to Section 12.03(C)(2) of the Land Development Regulations, the Development Review Board shall not approve any development proposal on lands within the Bartlett Brook Watershed unless it includes a stormwater management system designed to prevent an increase of the peak discharge and velocity of stream flow downstream of the development site. Accordingly, the applicant must provide a site plan and stormwater management system design details that comply with the requirements of Section 12.03(D) of the Land Development Regulations. In addition, the applicants must submit the stormwater management plans to Heindel and Noyes for inclusion in the Bartlett Brook Watershed computer model. Suggested improvements or modifications resulting from the Heindel and Noyes analysis should be incorporated prior to final plat approval by the Development Review Board. CITY OF SOUTH BURLINGTON 3 DEPARTMENT OF DEVELOPMENT REVIEW BOARD PLANNING & ZONING \drblsub\south burl ington\harborridge water\sketch The applicant has submitted the stormwater management plans to Heindel and Noyes for inclusion in the Bartlett Brook Watershed computer model. A report from Heindel and Noyes approving the stormwater aspect of the proposed project was submitted with the application (attached). SUBDIVISION CRITERIA Pursuant to Section 15.18 of the South Burlington Land Development Regulations, subdivisions shall comply with the following standards and conditions: Sufficient water supply and wastewater disposal capacity is available to meet the needs of the project. According to Section 15.13 of the South Burlington Land Development Regulations, the existing public water system shall be extended so as to provide the necessary quantity of water, at acceptable pressure. The proposed structure will serve as a supply source for the City of South Burlington's municipal water supply. Therefore, this requirement is not applicable to the proposed project. Sufficient grading and erosion controls will be utilized during and after construction to prevent soil erosion and runoff from creating unhealthy or dangerous conditions on the subject property and adjacent properties. The proposed project shall adhere to standards for erosion control as set forth in Section 16.03 of the South Burlington Land Development Regulations. In addition, the grading plan shall meet the standards set forth in Section 16.04 of the South Burlington Land Development Regulations. 1. The applicant should submit a grading and erosion control plan for the subject property, in accordance with Section 16.04 of the Land Development Regulations, with the preliminary plat application. The project incorporates access, circulation, and traffic management strategies sufficient to prevent unreasonable congestion of adjacent roads. Access to this property is via a 12' wide gravel access drive extending from Harbor Ridge Road. The proposed project will utilize this existing access drive. The proposed project will not create significant traffic, and therefore staff feels the plans are sufficient with regard to this requirement. The project's design respects and will provide suitable protection to wetlands, streams, wildlife habitat as identified in the Open Space Strategy, and any unique natural features on the site. There are no wetlands, streams, wildlife habitat, or other unique natural features on the subject property. CITY OF SOUTH BURLINGTON 4 DEPARTMENT OF DEVELOPMENT REVIEW BOARD PLANNING & ZONING ldrb\sub\south burl ington\harborridge water\sketch The project is designed to be visually compatible with the planned development patterns in the area, as specified in the Comprehensive Plan and the purpose of the zoning district(s) in which it is located. According to Section 4.02 of the Land Development Regulations, the purpose of the R2 District is to encourage moderate -density residential uses. Staff feels the proposed project is in compliance with the stated purpose of the R2 District, as outlined in the Land Development Regulations. Obviously, the water storage tanks are not a residential use; however, they will provide an increased water supply to accommodate residential development. Open space areas on the site have been located in such a way as to maximize opportunities for creating contiguous open spaces between adjoining parcels and/or stream buffer areas. Staff feels the layout of the proposed project meets this requirement. The layout of a subdivision or PUD has been reviewed by the Fire Chief or (designee) to ensure that adequate fire protection can be provided. The South Burlington Fire Chief has reviewed and approved the plans. Roads, recreation paths, stormwater facilities, sidewalks, landscaping, utility lines and lighting have been designed in a manner that is compatible with the extension of such services and infrastructure to adjacent landowners. This requirement is not applicable to the proposed project. Roads, utilities, sidewalks, recreation paths, and lighting are designed in a manner that is consistent with City utility and roadway plans and maintenance standards. The City Engineer has reviewed and approved the plans. His comments are attached. 2. Pursuant to Section 15.13(E) of the Land Development Regulations, any new utility lines, services, and service modifications shall be underground. The project is consistent with the goals and objectives of the Comprehensive Plan for the affected district(s). The proposed project is consistent with the goals and objectives for the R2 District, as outlined in the South Burlington Comprehensive Plan. In addition, the proposed project is in conformance with the following objectives relating to public utilities, as outlined in the South Burlington Comprehensive Plan.- * maintain the quality of existing utilities or services and remedy recognized deficiencies; CITY OF SOUTH BURLINGTON 5 DEPARTMENT OF DEVELOPMENT REVIEW BOARD PLANNING & ZONING \drb\sub\south burl ingtonlharborridge waterlsketch • expand public utilities and services that compliment and reinforce the land use and development recommendations contained in Chapter V of the Comprehensive Plan; • adjust the capacity of public utilities and services in concert with that of other municipal services to ensure a stable and appropriate rate of development. SITE PLAN REVIEW STANDARDS Pursuant to Section 14.03(A)(6) of the Land Development Regulations, any PUD shall require site plan approval. Section 14.06 establishes the following general review standards for all site plan applications: The site shall be planned to accomplish a desirable transition from structure to site, from structure to structure, and to provide for adequate planting, safe pedestrian movement, and adequate parking areas. The applicant has submitted building elevation plans and visual simulations for the proposed project. The proposed structure will be large. However, it will be the same dimensions as the existing water storage tank on the site. In addition, there is a significant amount of natural screening on the site and the both the existing structure and the proposed structure are below the existing tree canopies. The site provides adequate planting areas, and the applicant is proposing to plant twenty (20) coniferous trees, five (5) deciduous trees, and eleven (11) Virginia Creeper Vine throughout the site. Pedestran movement and parking areas are not applicable to the proposed project. Parking shall be located to the rear or sides of buildings to the greatest extent practicable. Parking areas are not applicable to the proposed project. Without restricting the permissible limits of the applicable zoning district, the height and scale of each building shall be compatible with its site and existing or adjoining buildings. The proposed structure is going to exceed the 35' height maximum for structures in South Burlington. The existing structure is 60' in height and the proposed structure is 60' in height. Thus, the new structure will be 25' taller than the maximum height limit in the City. The applicant has requested a height waiver from the Development Review Board pursuant to Section 3.07(E)(2) of the Land Development Regulations. The Board has to find that the proposed structure is in conformance with the planned character of the R2 District and that it will not detract unduly from public scenic view sheds. The subject property does not fall within any of the City's Scenic View Protection Overlay Districts, so the structure will not detract unduly from public scenic views from adjacent properties or public streets and walkways. In addition, the existing 60' structure has been there since 1971, so it has been part of the landscape for over thirty years. The applicant has CITY OF SOUTH BURLINGTON 6 DEPARTMENT OF DEVELOPMENT REVIEW BOARD PLANNING & ZONING \drb\sub\south burlington\harborridge water\sketch submitted visual simulations of the proposed structure (attached). Staff strongly supports this height waiver request. 3. The plans shall be revised to indicate the average pre -construction grade of the site and the height of the proposed structure in relation to the average pre -construction grade, prior to submittal of the next plans. Newly installed utility services and service modifications necessitated by exterior alterations or building expansions shall, to the extent feasible, be underground. Pursuant to Section 15.13(E) of the Land Development Regulations, any new utility lines, services, and service modifications shall be underground. The Development Review Board shall encourage the use of a combination of common materials and architectural characteristics, landscaping, buffers, screens and visual interruptions to create attractive transitions between buildings of different architectural styles. The applicant is proposing landscaping on the site. Outside of that, this requirement is not applicable to the proposed project. Proposed structures shall be related harmoniously to themselves, the terrain and to existing buildings and roads in the vicinity that have a visual relationship to the proposed structures. The proposed structure will be identical in appearance to the structure that currently exists. The proposed structure will be the same style, color, and height of the existing structure. In addition to the above general review standards, site plan applications shall meet the following specific standards as set forth in Section 14.07 of the Land Development Regulations: The reservation of land may be required on any lot for provision of access to abutting properties whenever such access is deemed necessary to reduce curb cuts onto an arterial of collector street, to provide additional access for emergency or other purposes, or to improve general access and circulation in the area. The access to the proposed project is via a 12' wide access drive off of Harbor Ridge Road. Staff does not feel it is necessary to require any additional access to abutting properties, due to the nature of the project. Electric, telephone and other wire -served utility lines and service connections shall be underground. Any utility installations remaining above ground shall be located so as to have a harmonious relation to neighboring properties and to the site. CITY OF SOUTH BURLINGTON 7 DEPARTMENT OF DEVELOPMENT REVIEW BOARD PLANNING & ZONING \drb\sub\south burlington\harborridge water\sketch Pursuant to Section 15.13(E) of the Land Development Regulations, any new utility lines, services, and service modifications shall be underground. All dumpsters and other facilities to handle solid waste, including compliance with any recycling or other requirements, shall be accessible, secure and properly screened with opaque fencing to ensure that trash and debris do not escape the enclosure(s). The proposed project does not include any dumpsters or other facilities to handle solid waste. Landscaping and Screening Requirements The applicant has stated that the proposed project will cost $280,000. Pursuant to Table 13-9 of the Land Development Regulations, the proposed project will require a minimum landscaping value of $8,100. The applicant has submitted a planting schedule on Sheet 1 of the plans. The applicant has also submitted a landscape budget to accompany this planting schedule. This budget was prepared by North Country Landscape and Garden Center and indicates that $11,170 of landscaping will be planted on the site. 4. The plans should be revised to indicate the name of the landscape professional who prepared the landscape plan. 5. Pursuant to Section 13.06(C)(1) of the South Burlington Land Development Regulations, any utility cabinets on the site shall be effectively screened to the approval of the Development Review Board. 6. The City Arborist should review the plans prior to final approval. Staff recommends that the applicant address the numbered items in the "Comments Section" of this document and include the changes in next application submittal. Respectfully submitted, Brian Robertson, Associate Planner Copy to: Jay Nadeau, applicant Permit Number SD- V � - 0 APPLICATION FOR SUBDIVISION SKETCH PLAN REVIEW All information requested on this application must be completed in full. Failure to provide the requested information either on this application form or on the plans will result in your application being rejected and a delay in the review before the Development Review Board. For amendments, please provide pertinent information only. 1) OWNER OF RECORD (Name as shown on deed, mailing address, phone and fax #) Champlain Water District, 403 Queen City Park Road, So. Burlington VT 05403 T:864-7454 F:864-0435 2) LOCATION OF LAST RECORDED DEED (Book and page #) Volume 96, Page 263 3) APPLICANT (Name, mailing address, phone and fax #) City of South Burlington, 575 Dorset Street, So. Burlington, VT 05403 T: 846-4106 F: 846-4101 4) APPLICANT'S LEGAL INTEREST 1N THE PROPERTY (fee simple, option, etc.)_ Construction of new water storage tank 5) CONTACT PERSON (Name, mailing address, phone and fax #) Jay Nadeau, City of South Burlington, 403 Queen City Road, So. Burlington, VT 05403 T:864-7454 F:864-0435 6) PROJECT STREET ADDRESS: 23 Harbor Ridge Road 7) TAX PARCEL ID # (can be obtained at Assessor's Office) Sheet 65, 0770-00023 R 8) PROJECT DESCRIPTION a) Existing Uses on Property (including description and size of each separate use) 500,000 gallon water storage tank b) Proposed Uses on property (include description and size of each new use and existing uses to remain) Addition of a twin 500,000 gallon storage tank. The existing tank is to remain. c) Total building square footage on property (proposed buildings and existing buildings to remain) 2,770 sq. ft. d) Proposed height of building (if applicable) 6 e) Number of residential units (if applicable, new units and existing units to remain) Not applicable. f) Other (list any other information pertinent to this application not specifically requested above, please note if Overlay Districts are applicable) Located in Bartlett Brook Overlay District. Refer to attached report on the Bartlett Brook Watershed Analysis prepared by Heindel and Noyes. 9) LOT COVERAGE a) Building: Existing 3.6 % Proposed 7.1 % b) Overall (building, parking, outside storage, etc) Existing 3.6 % Proposed 14.5 % c) Front yard (along each street) Existing 0 % Proposed 18 10) TYPE OF EXISTING OR PROPOSED ENCUMBRANCES ON PROPERTY (easements, covenants, leases, rights of way, etc.) 50' wide right-of-way for Champlain Water District to Allen Road. 11) PROPOSED EXTENSION, RELOCATION, OR MODIFICATION OF MUNICIPAL FACILITIES (sanitary sewer, water supply, streets, storm drainage, etc.) None 12) OWNERS OF RECORD OF ALL CONTIGUOUS PROPERTIES & MAILING ADDRESSES (this may be provided on a separate attached sheet) Refer to attached list Of abutters. 13) ESTIMATED PROJECT COMPLETION DATE October 2005 14) PLANS AND FEE Plat plans shall be submitted which shows the information listed on Exhibit A attached. Five (5) regular size copies and one reduced copy (1 I" x 17") of the plans must be submitted. A sketch subdivision application fee is free. I hereby certify that all the information requested as part of this application has been submitted and is accurate to the best of my knowledge. 'SIGNATitE OF APPLICANT SIGNATU OF PROPERTY OWNER Do not write below this line DATE OF SUBMISSION: I have reviewed this sketch plan application and find it to be: B Complete ❑ Incomplete of Planning & Zoning or Designee EXHIBIT A SKETCH PLAN The following information must be shown on the plans. Please submit five (5) copies and one reduced copy (I V x 17") of the plan. Failure to provide the following information will result in your application being rejected and a delay in the review before the Development Review Board. If submitting a plat amendment, please submit only pertinent information. Please provide (on separate sheet) a list of all abutters to the project property and mailing addresses. o Name and address of owner of record and applicant. o Name of owners of record of contiguous properties. o Numerical and graphical scale, date last revised, and north arrow. o Location map showing relation of proposed subdivision to adjacent property and surrounding area. o Boundaries and area of all contiguous land belonging to the owner of record. o Boundaries and area of the proposed subdivision. o Existing and proposed layout of property lines. o Type and location of existing and proposed restrictions on land (easements, covenants, etc.). o Location, names and widths of existing and proposed streets or private ways. o Existing zoning boundaries. o Existing watercourses, wetlands, floodplains, wooded areas, ledge outcrops, and other natural features. o Location and size of any existing sewers (including septic tanks) and water mains, culverts and drains on the property to be subdivided. o Number and location of parking spaces (see Section 26.25 of the Zoning Regulations). o Lot coverage information: Building footprint, total lot, and front yard. o A list of waivers desired (if any). o All applicable information required for a site plan application shall be submitted for subdivisions involving a commercial or industrial complex, multi -family project, planned unit development, or planned residential development (please see site plan application). 4 CITY OF SOUTH BURLINGTON NEW TWIN ALLEN ROAD WATER STORAGE TANK LIST OF ABUTTERS 0770-00025 R Irish, Dewey Jr. & Irene 25 Harbor Ridge Rd. So. Burlington, VT 05403 07700-00024 R LeClair, David & Elizabeth 24 Harbor Ridge Road So. Burlington, VT 05403 0770-00022 R Campbell-Mohn, Frederick & Celia 22 Harbor Ridge Rd. So. Burlington, VT 05403 0770-00021 R Allen Road Land Company, Inc. 410 Shelburne Rd. So. Burlington, VT 05403 1640-01807 R Farina, James & Janet 1807 Spear St. So. Burlington, VT 05403 1640-01809 R Pappas, Mary 1809 Spear St. So. Burlington, VT 05403 ALLEN ROAD TWIN WATER STORAGE TANK Article 3.07 Height of Structures E. Height Waiver for Structures in the R1, R1-PRD, R1-Lakeshore, R2, R4, R7, Lakeshore Neighborhood, Queen City Park and Southeast Quadrant Districts. The existing Allen Road water storage tank is located in the R2 district and was built in 1971. The existing tank is approximately 60 feet high (including the roof) and a new twin tank of similar size will be constructed adjacent to the existing tank. The new twin tank is planned to exceed the maximum height for structures specified under 3.07 (D) as part of a planned unit development. A waiver from the maximum height requirements of this section is requested from the Development Review Board. Drawing No. 2 is enclosed which indicates the elevations of the existing and proposed tanks. The new tank will be similar in type and size to the existing tank. Co -location of the new tank was selected as the preferred approach to minimize the impacts on public views. This site is located lower than Spear Street and the location of the new tank will not restrict the views of adjacent properties. View perspectives taken on October 8, 2003 are enclosed which indicate the existing and proposed views. The existing tank was not visible from Spear Street and it is not expected that the new tank will be visible from this location. From Allen Road looking north, the existing tank is visible through the large mature trees. The new twin tank will be visible from this location but will be in a similar line of sight as the existing tank. The existing tank is barely visible through the existing trees looking east and south from Baycrest Drive and Road. The new tank will be slightly visible from these locations, but is well hidden by the existing trees. Article 14.10 Conditional Use Review: General Provisions and Standards The Development Review Board shall review the proposed conditional use for compliance with all applicable standards as contained in these regulations. The proposed conditional use shall meet the following standards: (1) The proposed use, in its location and operation, shall be consistent with the planned character of the area as defined by the City of South Burlington Comprehensive Plan. This site has been the location of an operating water storage tank since 1971 Maintaining and providing adequate long-term water storage capacity at this site is a necessary public use. (2) The proposed use shall conform to the stated purpose of the district in which the proposed use is to be located. (a) The capacity of existing or planned municipal or educational facilities. Expansion of the water storage tank is necessary to provide adequate long-term distribution storage for the City "Main Service" water distribution system. This expanded water storage tank does not impact educational facilities. (b) The essential character of the neighborhood or district in which property is located, or the ability to develop adjacent property for appropriate uses. The site is located in the Southeast Quadrant and the existing water storage tank has been a prominent feature at this site for the past 30 years. Expansion of the water storage tank will not impact the ability to develop adjacent property for appropriate uses. (c) Traffic on roads and highways in the vicinity. Once the expanded water storage tank is operational, there will be no traffic impacts to roadways and highways in the vicinity. (d) Bylaws in effect. Expansion of the existing water storage tank will not adversely affect bylaws in effect. (e) Utilization of renewable energy resources. Expansion of the existing water storage tank will not adversely affect renewable energy resources. (f) General public health and welfare. Expansion of the existing water storage tank will not adversely affect general public health and welfare. Article 14.11 Conditional Use Review: Specific Uses and Standards A. Public Utility, Power Generating Plants, Substations, and Transmission Lines Review of such use shall include a review of 1) the availability of alternative sites and 2) an evaluation of impacts and proposed mitigation measures related to safety, aesthetics, and noise. A "Feasibility Study of Water Storage Tank Sites" was completed in November 2001 to investigate alternative sites for expansion of the water storage for the "Main Service" area. Suitable sites were limited to locations with an existing ground elevation above 320 feet which is required to construct a storage tank which will maintain minimum water system pressures. A total of three (3) sites were evaluated for short and long term storage needs. Each of these sites were compared based on nine (9) criteria and ranked accordingly. For fulfilling the long-term storage requirements, use of the existing Allen Road site was determined to be the preferred site. This site has been the location of a water storage tank since 1971. Co -location is preferred to utilize existing property, access, and infrastructure. By re -using existing infrastructure, the impacts on safety and noise are minimized. The existing tank is lower in elevation and is therefore not visible from Spear Street. Other than the northerly view from Allen Road, the existing tank is well screened by mature trees in the west and north directions. These existing trees extend above the tank and will be maintained to the extent possible. Addition of a new tank of similar type at this site minimizes the impacts on the aesthetics as shown in the enclosed view perspectives. 11 / LD! LCJCJL 14. 1 L ebbs r d idud N COUNTRY LANDSCAPE PAGE 02 North Country Landscape & Garden Center November 17, 203 Champlain Water District Queen City Park Road So. Burlington, Vt 05403 Plant List: 135 TALCOTT ROAD WILLISTON, VT 05495 (802)878-7272 - FAX (802)878-9303 Landscape Proposal Allen Road - Storage Tank 11 Virginia Creeper 3 gal 15 Hemlock 6-7' 5 Sugar Maples 2-2 ``/2" 5 Eastern Red Cedar 4' Total Cost*** $11,170.00 *** Total Cost includes all labor, equipment and planting materials. Nursery Stock is guaranteed for one year form date planted. ALLEN ROAD —WATER STORAGE TANK - South Burlington,. Vermont BARTLETT BROOK WATERSHED ANALYSIS November 21, 2003 HEINDEL AND NOYES Consulting Hydrogeologists, Engineers and Environmental Scientists • Consulting Hydrogeologists Heindel cmd Noyes * Engineers • Envirronmorun ental Scientists H N PO Box 64709 Burlington, Vermont 054064709 802-658-0820 Fax 802-860-1014 ALLEN ROAD — WATER STORAGE TANK South Burlington, Vermont BARTLETT BROOK WATERSHED ANALYSIS EXECUTIVE SUMMARY November 21, 2003 The proposed water storage tank is located next to an existing water storage tank at 23 Harbor Ridge Road in South Burlington. The proposal includes construction of one tower with a total site area of 0.92 acres. Impervious surface area will increase from 0.03 acres to 0.06 acres within the 0.92-acre parcel. Under existing conditions, land coverage of the property includes grass, woods and grass combination, as well as paved areas. The hydrologic soil group for this area is C. Stormwater runoff from the site resulting from the 25-year storm event was evaluated using the Bartlett Brook Stormwater Model. Peak runoff from the site is not predicted to increase despite the minor increase in impervious surface areas associated with the new development. Flow rates within the associated downstream reaches are also not predicted to increase. Given the fact that this proposed development does not pose any significant alterations to the Bartlett Brook flow regime, we recommend the City approve the stormwater aspects of the proposed project with no modifications. I I • Consulting Hydrogeologists • Engineers Heindel cIIld Noyes En vironmental Scientists H N PO Box 64709 Burlington, Vermont 05406-4709 802-658-0820 V Fax 802-860-1014 � ALLEN ROAD -WATER STORAGE TANK South Burlington, Vermont BARTLETT BROOK WATERSHED ANALYSIS SUMMARY OF FINDINGS November 21, 2003 1. Heindel & Noyes (H&N) has completed a stormwater runoff analysis of the Bartlett Brook Watershed. This analysis was conducted to assess the potential changes in peak runoff and peak discharge associated with the proposed water storage tank development on 23 Harbor Ridge Road in South Burlington, Vermont. A site location map is included in Appendix 1. 2. Stormwater runoff was analyzed using the Bartlett Brook Stormwater Model, which was modified to reflect the proposed development. The Bartlett Brook Model was first developed by H&N in 1984 using the USDA Soil Conservation Service TR-20 model. The model has been updated in the intervening years so it is now executed using the HydroCad software package. The Model includes existing development as well as approved but unbuilt development within the watershed'. 3. Analysis conducted by H&N relied upon information provided by Forcier Aldrich & Associates, Inc. It is assumed that all information provided by Forcier Aldrich & E Associates, Inc. is accurate. This includes but is not limited to: 1) pre- and post - development land coverage (impervious surface areas, land coverage types, soil types), 2) hydrology (on -site water movement and drainage), 3) grading, and 4) other landscape features and site planning characteristics that may impact on - site and off -site stormwater management. ' The Model does not account for recent changes within the Bartlett Brook Watershed that are e due to construction activities along U.S. Route 7. ALLEN ROAD PROPERTY - BARTLETT BROOK WATERSHED ANALYSIS 2 4. The design storm used in this analysis was the 25-year, 24-hour storm event, which in the Bartlett Brook Watershed is 4.0 inches of rainfall over a 24-hour period. This storm event is the design standard used for all Bartlett Brook runoff evaluations performed in the past by H&N, and is the design storm specified in South Burlington's stormwater zoning ordinance for the watershed. 5. Peak runoff rates and volumes were determined for pre- and post -development conditions for the subcatchment. 6. Bartlett Brook Model outputs for pre- and post -development conditions are included in Appendices 2 and 3, respectively. 7. Pre -development, the subcatchment (Link #9304 in model) has a discharge rate of 2.98 cfs. Post -development, the subcatchment (Link #9305 in model) has a discharge rate of 2.98 cfs. 8. Pre -development, peak discharge from the subcatchment to the downstream reach (#365 in model) is 61.26 cfs. Post -development, peak discharge to the downstream reach is also 61.26 cfs. There is no predicted downstream increase for the 25-year storm event. UAPR0JECTS\Bart1ettBrkW1en Road Water Tower�AllenRoadWT_BB_Report(November 2003).doc r b i� f > -lei iM� r ... j r ".A `c • i M Y f u�'K'ir �,,,sj�,!'iN �, n t tii• tl y ', x t M /'� �"^,{ix,,i 0.K�j��Y y V� 4 nr,i ,� • • - 1 ' F `Sw 4 _. .. i } 4t�� *k` �tl��r t'"'{� k � $L .. h w • r . � '` j r % ':.... d, a • `�� a � jam' hN }.,t t ..,. •a— ♦ M. ^�N ^+ i 4_� '{"� � ' •Pjl�NY33Ny x tip, •� � .r , r k�fi�i tt Y z a, ji % �,��s{ �}� ��$� _ Wiz• �; { . � fr)Ai' 1 �Y'�j+��4{. ♦ i�y �. � ! � q � n� t �E' . ,t'. am � ^� "''.fib • ,� + t 5 � n� r! � �� ` �� L bA N Water Tower at Allen Road South Burlington, Vermont s USGS Site Location Map 2000 0 2000 Feet c:tAlienJoadlslamweter.apr Heindel and No es j NIO AY AiIOp! �VIOVALIYA TION .iAA VIC69 Data for L9304 Allen Rd Water Tower Pre 20031117 � T- TYPE II 24-HOUR RAINFALL= 4.00 IN Page 1 Prepared by Heindel and Noyes, Inc - H droCAD 5.11 001547 Burlington, Vermont c 1986-1999 APPlied Microcom uter System19 Nov 03 s WATERSHED ROUTING OSUBCATCHMENT ' 1 ❑ REACH ' POND Q] LINK SUBCATCHMENT 1 = ALLEN ROAD WATER TOWER PRE -> REACH 1 Data for L9304 Allen Rd Water Tower Pre 20031117 TYPE II 24-HOUR RAINFALL= 4.00 IN Page 2 Prepared by Heindel and Noyes, Inc -- Burlington, Vermont HdroCAD 5.11 001547 (c) 1986 1999 ADulied Mirrnnn �,,. v _._ 19 Nov 03 SUBCATCHMENT 1 ALLEN ROAD WATER TOWER PRE PEAK= 2.98 CFS @ 11.83 HRS, VOLUME= .14 AF ACRES CN 20 86 OPEN, GRASS <50$ POOR, HSG C SCS TR-20 METHOD .03 98 PAVED, HSG C TYPE II 24-HOUR .69 76 WOODS & GRASS FAIR, HSG C RAINFALL= 4.00 IN .92 79 SPAN= 10-20 HRS, dt=.1 HRS DIRECT ENTRY segment ID: r Data for BB3 Reach -A 20020829 TYPE II 24-HOUR RAINFALL= 4.00 IN Page 1 f Prepared by Heindel and Noyes, Inc - I H droCAD 5.11 001547 " Burlington, Vermont c 1986-1999 APPlied Microcom uter S stems 19 Nov 03 V WATERSHED ROUTING y Jla 30I `L 312 `�' 3B6 315 I 310 y Y sx 1 303 � y \3I13 311 . \ J19 �1 318 �O 3B 32 ! vx I 362 Z 9J02 366 3)I O 3)�� 3BI 36B 1 369 � 302 37a � 3B3 38i 1 3B9 'Z/ 39 y a OSUBCATCHMENT D REACH Zn� POND LINK e� SUBCATCHMENT 301 Quayle Run (#1) SUBCATCHMENT 306 Q"> REACH 3-03 = Quayle Run (#2) -> REACH 307 SUBCATCHMENT 310 = Harborview RO to Reach K 1 (minus Barone -> REACH 311 Ir SUBCATCHMENT 312 = S.F.H. Dev Runoff E SUBCATCHMENT 31K 4 -' REACH 313 = eari Lane Runoff SUBCATCHMENT 31B 9 -> REACH 315 aycourt Condos -> POND 320 SUBCATCHMENT 362 = Harbor Heights RO SUBCATCHMENT 366 GMP '> REACH 364 = SUBCATCHMENT 368 POND 381 = SE Parking SUBCATCHMENT 369 N-� POND 378 = North Parking SUBCATCHMENT 371 -' POND 378 =.Larkin Center Field -' POND 381 Data for BB3 Reach -A 20020829 TYPE II 24-HOUR RAINFALL= 4.00 IN Prepared by Heindel and Noyes, Inc -- Burlington, Vermont H droCAD 5.11 001547 c 1986-1999-Applied Microcom ute SUBCATCHMENT 372 = Watershed 1 SUBCATCHMENT 373 = Watershed 2 SUBCATCHMENT 374 = Sunset Hotel SUBCATCHMENT 383 = Shearer Parking SUBCATCHMENT 384 SUBCATCHMENT 390 REACH 303 REACH 305 REACH 307 REACH 311 REACH 313 REACH 315 REACH 318 REACH 323 REACH 364 REACH 365 REACH 382 REACH 389 REACH 3999 POND 309 POND 320 POND 378 POND 381 POND 390 LINK 100 LINK 200 LINK 9301 LINK 9302 Page 2 19 Nov 03 -> POND 381 -> POND 381 -> POND 378 -> REACH 389 = Reyes -> REACH 389 = Reach H watershed -> REACH 365 = Reach R -> REACH 305 = Reach Q -> POND 309 = Reach P -> POND 309 = Reach K -> REACH 318 = Reach M -> REACH 318 = Reach L/N -> REACH 318 = Reach J -> REACH 323 = Reach I -> POND 381 = Reach G -> POND 381 = Reach H -> REACH 364 = Reach D -> REACH 389 = Reach C -> POND 390 = Reach A = Reach O -> REACH 323 = Baycourt Condos -> REACH 323 = Larkin Pond -> POND 381 = Reach E and Culvert at Rt 7 -> REACH 382 = Reach B (Brigham Road) -> REACH 3999 = BB1 Reach-Z and everything above -> REACH 389 = BB2 Reach-S and everything above -> REACH 305 = Barone 5.2 acres 20020130 -> REACH 311 = Lakeview at Pillsbury (outflow from main p -> REACH 364 Data for BB3 Reach -A 20020829 TYPE II 24-HOUR RAINFALL= 4.00 IN Prepared by Heindel and Noyes, Inc -- Burlington, Vermont �dro�5.11 001547 (c) 1986 1999 Applied Micrormmni,t LINK 9303 = Lakeview at Pillsbury Post I LINK 9304 = Allen Rd Water Tower Pre Page 3 19 Nov 03 s -> REACH 364 -> REACH 365 Data for BB3 Reach -A 20020829 TYPE II 24-HOUR RAINFALL= 4.00 IN Prepared by Heindel and Noyes, Inc -- Burlington, HydroCAD 5.11 001547 Vermont (c) 1986 1999 Applied MicrocomnutP REACH 364 Reach G Qin = 62.76 CPS @ 12.15 HRS, VOLUME= 5.37 AF Qout= 59.60 CPS @ 12.28 HRS, VOLUME= 5.34 AF, ATTEN= 5%, LAG= DEPTH END AREA DISCH (FT) (SO -FT) (rPS) 0.00 0.00 0.00 .35 2.47 8.23 .70 5.68 28.12 1.05 9.64 59.61 1.51 15.89 119.54 2.10 25.96 234.26 2.80 40.56 429.08 3.50 58.12 697.12 REACH 365 6' x 3.5' CHANNEL SIDE SLOPE= .33 1/1 n= .04 LENGTH= 1750 FT SLOPE= .04 FT/FT Reach H Page 4 19 Nov 03 7.7 MIN STOR-IND+TRANS METHOD PEAK DEPTH= 1.05 FT PEAK VELOCITY= 6.2 FPS TRAVEL TIME = 4.7 MIN SPAN= 3-23 HRS, dt=.04 HRS Qin = 61.26 CPS @ 12.05 HRS, VOLUME= 3.94 AF QOut= 56.26 CPS @ 12.17 HRS, VOLUME= 3.93 AF, ATTEN= 8%, LAG= DEPTH END AREA DISCH (FT) (SO -FT) (CPS) 0.00 0.00 0.00 .35 2.47 8.23 .70 5.68 28.12 1.05 9.64 59.61 1.51 15.89 119.54 2.10 25.96 234.26 2.80 40.56 429.08 3.50 58.12 697.12 6' x 3.5' CHANNEL SIDE SLOPE= .33 1/1 n= .04 LENGTH= 1500 FT SLOPE= .04 FT/FT 6.9 MIN STOR-IND+TRANS METHOD PEAK DEPTH= 1.01 FT PEAK VELOCITY= 6.1 FPS TRAVEL TIME = 4.1 MIN SPAN= 3-23 HRS, dt=.04 HRS Data for BB3 Reach -A 20020829 TYPE II 24-HOUR RAINFALL= 4.00 IN Page 5 Prepared by Heindel and Noyes, Inc -- Burlington, Vermont HydroCAD 5.11 001547 (c) 1986 1999 Applied Microcomputer RVRtAma 19 Nov 03 LINK 9304 Allen Rd Water Tower Pre Qout= 2.98 CFS @ 11.83 HRS, VOLUME= .14 AF, SPAN= 10-20 HRS, dt=.1 HRS SUBCATCHMENT 1 from L9304 Allen Rd Water Tower Pre 20031117 "ALLEN ROAD WATER TOWER PRE" Data for L9305 Allen Rd Water Tower Post 20031117 PC/7 1 TYPE II 24-HOUR RAINFALL= 4.00 IN Page 1 Prepared by Heindel and Noyes, �Inc -- Burlington, Vermont droCAD 5.11 001547 (c) 1986-1999 A lied Microcomputer SvstamQ 19 Nov 03 WATERSHED ROUTING OSUBCATCHMENT I I I I I I ❑ REACH POND LINK SUBCATCHMENT 1 = ALLEN ROAD WATER TOWER POST -> REACH 1 Data for L9305 Allen Rd Water Tower Post 20031117 TYPE II 24-HOUR RAINFALL= 4.00 IN Page 2 Prepared by Heindel and Noyes, Inc -- Burlington, Vermont HydroCAD 5.11 001547 (c) 1986-1999 AnnliAA M4 19 Nov 03 SUBCATCHMENT 1 ALLEN ROAD WATER TOWER POST PEAK= 2.98 CFS @ 11.83 HRS, VOLUME= .14 AF ACRES CN 17 86 OPEN, GRASS <50% POOR, HSG C SCS TR-20 METHOD TYPE II 24-HOUR .06 98 PAVED, HSG C •69 76 WOODS & GRASS FAIR, HSG C RAINFALL= 4.00 IN .92 79 SPAN= 10-20 HRS, dt=.1 HRS DIRECT ENTRY segment ID: mi .2 Data for BB3 Reach -A 20020829 P64T TYPE II 24-HOUR RAINFALL= 4.00 IN Page 6 Prepared by Heindel and Noyes, Inc -- Burlington, Vermont H droCAD 5.11 001547 c 1986-1999 A lied Microcomputer Systems 19 Nov 03 IWATERSHED ROUTING 31a 301 `i' 312 y 3B6 315 I 310 gel L \ 313 311 y 307 323 y� I 362 a 366 371 36< 372 365 I'\ 373 vies 36 /37 f369 37a / 302 O f � 3B3 O 3Ba 100 3B9 .v 39 y n O SUBCATCHMENT ❑ REACH POND ` � LINK SUBCATCHMENT 301 = Quayle Run (##1) -> REACH 303 SUBCATCHMENT 306 = Quayle Run ( ##2 ) -> REACH 307 SUBCATCHMENT 310 = Harborview RO to Reach K (minus Barone -> REACH 311 SUBCATCHMENT 312 = S.F.H. Dev Runoff -> REACH 313 SUBCATCHMENT 314 = Keari Lane Runoff t -> REACH 315 SUBCATCHMENT 319 = Baycourt Condos -> POND 320 SUBCATCHMENT 362 = Harbor Heights RO -> REACH 364 SUBCATCHMENT 366 = GMP -> POND 381 SUBCATCHMENT 368 = SE Parking -> POND 378 SUBCATCHMENT 369 = North Parking -> -POND 378 SUBCATCHMENT 371 Larkin Center Field -> POND 381 Data for BB3 Reach -A 20020829 TYPE II 24-HOUR RAINFALL= 4.00 IN Page"7 Prepared by Heindel and Noyes, Inc -- Burlington, Vermont I H droCAD 5.11 001547 c 1986-1999 Applied Microcom 19 Nov 03 uter Systems SUBCATCHMENT 372 = Watershed 1 I-> POND 381 SUBCATCHMENT 373 = Watershed 2 -> POND 381 I SUBCATCHMENT 374 = Sunset Hotel -> POND 378 SUBCATCHMENT 383 = Shearer Parking -> REACH 389 SUBCATCHMENT 384 = Reyes -> REACH 389 SUBCATCHMENT 390 = Reach H watershed -> REACH 365 REACH 303 = Reach R -> REACH 305 I REACH 305 = Reach Q -> POND 309 REACH 307 = Reach P -> POND 309 REACH 311 = Reach K REACH 318 REACH 313 = Reach M -> REACH 318 REACH 315 = Reach L/N -> REACH 318 REACH 318 = Reach J -> REACH 323 REACH 323 = Reach I -> POND 381 REACH 364 = Reach G -> POND 381 REACH 365 = Reach H -> REACH 364 REACH 382 = Reach D -> REACH 389 1 REACH 389 = Reach C If -> POND 390 REACH 3999 = Reach A > POND 309 l = Reach O -> REACH 323 POND 320 = Baycourt Condos -> REACH 323 e POND 378 = Larkin Pond -> POND 381 POND 381 = Reach E and Culvert at Rt 7 -> REACH 382 x POND 390 = Reach B (Brigham Road) -> REACH 3999 LINK 100 = BB1 Reach-Z and everything above -> REACH 389 LINK 200 = BB2 Reach-S and everything above -> REACH 305 LINK 9301 = t Barone 5.2 acres 20020130 -> REACH 311 LINK 9302 = Lakeview at Pillsbury (outflow from main p -> REACH 364 IData for BB3 Reach -A 20020829 TYPE II 24-HOUR RAINFALL= 4.00 IN Page 9 I Prepared by Heindel and Noyes, Inc -- Burlington, Vermont H droCAD 5.11 001547 c 1986-1999 Applied Microcom 19 Nov 03 uter S stems REACH 364 Reach G Qin = 62.76 CFS @ 12.15 HRS, VOLUME= 5.37 AF IQout= 59.60 CFS @ 12.28 HRS, VOLUME= 5.34 AF, ATTEN= 5%, LAG= 7.7 MIN DEPTH END AREA DISCH _(FT) (SQ-FT) I 0.00 0.00 (CFS) 0.00 6' x 3.5' CHANNEL STOR-IND+TRANS METHOD .35 2.47 8.23 SIDE SLOPE= .33 PEAK DEPTH= 1.05 FT .70 5.68 28.12 n= .04 LENGTH= 1750 FT PEAK VELOCITY= 6.2 FPS 1.05 9.64 I 59.61 SLOPE= 04 FT/FT TRAVEL TIME = 4.7 MIN 1.51 15.89 119.54 SPAN= 3-23 HRS, dt=.04 HRS 2.11 25.96 234.26 2.80 40.56 429.08 3.50 58.12 697.12 REACH 365 Reach H Qin = 61.26 CFS @ 12.05 HRS, VOLUME= 3.94 AF Qout= 56.26 CFS @ 12.17 HRS, VOLUME= 3.93 AF, ATTEN= 8%, LAG= 6.9 MIN DEPTH END AREA DISCH (FT) (SQ-FT) 0.00 0.00 (CFS) 0.00 6' x 3.5' CHANNEL STOR-IND+TRANS METHOD .35 2.47 8.23 SIDE SLOPE= .33 � � / PEAK DEPTH= 1.01 FT .70 5.68 28.12 n= .04 LENGTH= 1500 FT PEAK VELOCITY= 6.1 FPS 1.05 9.64 59.61 SLOPE= .04 FT/FT TRAVEL TIME = 4.1 MIN 1.51 15.89 119.54 SPAN= 3-23 HRS, dt=.04 HRS 2.10 25.96 234.26 2.80 40.56 429.08 3.50 58.12 697.12 Data for BB3 Reach -A 20020829 Page 10 TYPE II 24-HOUR RAINFALL= 4.00 IN Prepared by Heindel and Noyes, Inc -- Burlington, Vermont 19 Nov 03 HydroCAD 5.11 001547 (c) 1986-1999 Applied Microcomputer Systems LINK 9305 Allen Rd Water Tower Post Qout= 2.98 CFS @ 11.83 HRS, VOLUME= .14 AF, SPAN= 10-20 HRS, dt=.1 HRS SUBCATCHMENT 1 from L9305 Allen Rd Water Tower Post 20031117 "ALLEN ROAD WATER TOWER POST"