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Home My WebLink AboutAgenda 07_SD-21-21_1420 Hinesburg Rd_Kerwin_PP FP#SD-21-21 Staff Comments 1 1 of 11 CITY OF SOUTH BURLINGTON DEVELOPMENT REVIEW BOARD SD-21-21_1420 Hinesburg Rd_Kerwin_PP FP.docx DEPARTMENT OF PLANNING & ZONING Report preparation date: September 1, 2021 Plans received: July 12, 2021 1420 Hinesburg Road Preliminary and Final Plat Application #SD-21-21 Meeting date: September 8, 2021 Owner/Applicant Donald and Lois Kerwin 234 Boutin Road Hinesburg, VT 05461 Engineer Civil Engineering Associates, Inc. 10 Mansfield View Ln. South Burlington, VT 05403 Property Information Tax Parcel 0860-01420 Southeast Quadrant – Neighborhood Residential (SEQ-NR)2.01 acres Location Map PROJECT DESCRIPTION Preliminary and final plat application #SD-21-21 of Donald and Lois Kerwin to amend a previously approved Planned Unit Development of two lots. The amendment is to subdivide Lot 2 (0.83 acres) into three lots of 0.28 acres each in order to develop a single family home on each, 1420 Hinesburg Road. #SD-21-21 Staff Comments 2 2 of 11 COMMENTS Development Review Planner Marla Keene and Director of Planning and Zoning Paul Conner (“Staff”) have reviewed the plans submitted on 1/24/2020 and offer the following comments. Numbered items for the Board’s attention are in red. PERMIT HISTORY The Board approved Final Plat application #SD-19-35 in January 2020 to create the existing PUD of two residential lots. The City Council had previously approved application #IZ-19-01 authorizing the development of up to three new single family home building lots. None of the development approved in #SD-19-35 has occurred, but the applicant has recorded the required mylar, thus the two-lot subdivision has been fully executed. Staff considers nothing in approval #SD-19-35 precludes the applicant from seeking the current subdivision. However, conditions of #SD-19-35 fully apply to this application. CONTEXT The property is located in an area subject to Interim Zoning, but as noted above the applicant has received approval #IZ-19-01 for the creation of up to three new single family home lots from the parent lot. The new homes are proposed to be served by private or shared water supply wells, as City water is not available. The project proposes to connect both the existing home and the proposed homes into the City wastewater system. #SD-20-35 approved a similar water and wastewater configuration for the 2-lot subdivision. LDR 9.13 requires all applications for subdivision in the SEQ to be considered as a PUD. The sketch plan for this application was heard on January 20, 2021. A) ZONING DISTRICT & DIMENSIONAL REQUIREMENTS SETBACKS, COVERAGES & LOT DIMENSIONS Dimensional standards are as follows. SEQ-NR Required Proposed Lot #2 Proposed Lot #3 Proposed Lot #4 1. Min. Lot Size 12,000 sf 11,979 sf 11,979 sf 11,979 sf  Max. Building Coverage 15% 15% 15% 15% Max. Overall Coverage 30% 27% 27% 27%  Min. Front Setback 20 ft >20 ft 25 ft 25 ft  Min. Side Setback 10 ft 10 ft 10 ft 10 ft  Min. Rear Setback 30 ft 64 ft > 30 ft > 30 ft 2. Building Height (pitched roof) 28 ft <27 ft <27 ft <27 ft 1. The applicant’s plat plan notes the lots are 12,000 sf while the application form indicates 11,979 sf. Staff recommends the Board ask the applicant to clarify. #SD-21-21 Staff Comments 3 3 of 11 ARTICLE 9: SOUTHEAST QUADRANT 9.05 TRANSFER OF DEVELOPMENT RIGHTS AND RESIDENTIAL DENSITY Within the SEQ-NR zoning district, the minimum lot size for a single family home is 12,000 sq. ft. with a base density of 1.2 units per acre, and four (4) units per acre with the purchase of transferrable development rights. With three (3) dwelling units proposed on 1.22 acres, two additional TDRs are required, totaling 1.66 acres of land in a sending area. The applicant provided a purchase and sales agreement to purchase two TDRs. The provided agreement does not mention the involved acreage. Staff considers modifications to the TDR agreement will likely be necessary, but that the necessary modifications can be addressed by the City Attorney as a condition of approval. Staff therefore recommends the Board include a condition requiring recording of a plan showing the location of TDRs to be transferred and a Density Reduction Easement and Transfer of Development Rights document, subject to review and approval of the City attorney, prior to recording the mylar. 9.06 SOUTHEAST QUADRANT DIMENSIONAL AND DESIGN REQUIREMENTS APPLICABLE TO ALL SUB- DISTRICTS. The following standards shall apply to development and improvements within the entire SEQ. A. Height. See Article 3.07. Article 3.07 states that the requirements of Table C-2, Dimensional Standards, apply for the maximum number of stories and the maximum height. Waivers are not available for structures with the SEQ zoning district. The Project is located within the SEQ-NR district. A summary of dimensional standards is above. B. Open Space and Resource Protection. (1) Open space areas on the site shall be located in such a way as to maximize opportunities for creating usable, contiguous open spaces between adjoining parcels The LDR defines open space as follows. Land maintained in essentially an undisturbed, natural state for purposes of resource conservation, and/or maintaining forest cover; or that is enhanced and managed for outdoor recreation and civic use, working lands, or local food production. Open space must be of a quality and size that supports its intended function or use. Open space specifically excludes streets, parking areas, driveways and other areas accessible to motor vehicles. There are no existing significant open spaces on this parcel. Open spaces on adjoining parcels are separated from this parcel by existing residential development. Staff considers this criterion met. (2) Building lots, streets and other structures shall be located in a manner consistent with the Regulating Plan for the applicable sub-district allowing carefully planned development at the average densities provided in this bylaw. The Regulating Plan is included as Section 9.07 of the LDR and is discussed below. (3) A plan for the proposed open spaces and/or natural areas and their ongoing management shall be established by the applicant. Such plan shall describe the intended use and maintenance of each area. Continuance of agricultural uses or enhancement of wildlife habitat values in such plans for use and maintenance is encouraged. Existing natural resources on each site shall be protected through the development plan, including (but not limited to) primary natural communities, streams, wetlands, floodplains, conservation areas shown in the Comprehensive #SD-21-21 Staff Comments 4 4 of 11 Plan, and special natural and/or geologic features such as mature forests, headwaters areas, and prominent ridges. In making this finding the Development Review Board shall use the provisions of Article 12 of this bylaw related to wetlands and stream buffers. As discussed above, there are no open spaces on this parcel. There are two wooded areas on the existing site – one on the south property boundary and one on the eastern property boundary. Though these areas do not constitute a mature forest, they are existing natural resource areas providing visual buffering, wind screening, and habitat for small wildlife. The proposed configuration does not support retention of the eastern wooded area. Trees greater than 6-inches in caliper to be removed are shown on the erosion prevention and sediment control (EPSC) plan. Instead, the eastern wooded area is proposed to be cleared and graded for driveways, utilities and a roadside ditch (located outside the property line). Staff notes that on the adjacent site to the south the Board found the tree area on the east did not have value as natural resources and the applicant was not required to maintain it. 2. Staff recommends the Board consider whether the scrub tree area on the east warrants requiring the applicant to minimize disturbance to allow for tree preservation. Staff notes the location of the homes supports a strong street presence, and preservation of these trees may detract from that presence. If the Board determines the applicant should preserve trees, Staff recommends the Board require the applicant to update the plans to reduce impacts and show a limit of tree clearing. (4) Sufficient grading and erosion controls shall be employed during construction and after construction to prevent soil erosion and runoff from creating unhealthy or dangerous conditions on the subject property and adjacent properties. In making this finding, the Development Review Board may rely on evidence that the project will be covered under the General Permit for Construction issued by the Vermont Department of Environmental Conservation. The applicant has provided an erosion prevention and sediment control plan. A soil stockpile area is proposed on Lot 2. Staff recommends the Board include a finding that any remaining soil stockpile shall be removed three years after issuance of the first zoning permit unless a valid zoning permit is still in place. In other words, if the applicant constructs one or two of the homes but not the third, the soil stockpile shall not be allowed to remain in place indefinitely. (5) Sufficient suitable landscaping and fencing shall be provided to protect wetland, stream, or primary or natural community areas and buffers in a manner that is aesthetically compatible with the surrounding landscape. Chain link fencing other than for agricultural purposes shall be prohibited within PUDs; the use of split rail or other fencing made of natural materials is encouraged. The applicant is proposing to impact all 1,742 sf of Class III wetland and all of the associated 50-ft buffer (area of impact not provided). 12.02 requires the provision of a field delineation and wetland report. The following standards apply to wetlands. 12.02 Wetland Protection Standards and Review Procedures E. Standards for Wetland Protection (1) Consistent with the purposes of this Section, encroachment into wetlands and buffer areas is generally discouraged. (2) Encroachment into Class II wetlands is permitted by the City only in conjunction with issuance of a Conditional Use Determination (CUD) by the Vermont Department of Environmental Conservation and positive findings by the DRB pursuant to the criteria in (3) #SD-21-21 Staff Comments 5 5 of 11 below. (3) Encroachment into Class II wetland buffers, Class III wetlands and Class III wetland buffers, may be permitted by the DRB upon finding that the proposed project’s overall development, erosion control, stormwater treatment system, provisions for stream buffering, and landscaping plan achieve the following standards for wetland protection: Staff notes that the Board is not obligated to permit wetland encroachment. In the case of this PUD, the proposed Lot 3 is the location of the home in the previously-approved but not yet constructed PUD approval (#SD-19-35). The wetland was not identified as part of that application. Staff considers that since the DRB did not permit the wetland impacts as part of #SD-19-35, wetland impacts associated with that permit are prohibited. Therefore if the DRB does not approve this application, the applicant would have to reconfigure the previously- approved lot to avoid wetland or wetland buffer impacts in order to obtain a zoning permit. The Board should consider the following standards in determining whether to permit the proposed wetland encroachment. (a) The encroachment(s) will not adversely affect the ability of the property to carry or store flood waters adequately; (b) The encroachment(s) will not adversely affect the ability of the proposed stormwater treatment system to reduce sedimentation according to state standards; (c) The impact of the encroachment(s) on the specific wetland functions and values identified in the field delineation and wetland report is minimized and/or offset by appropriate landscaping, stormwater treatment, stream buffering, and/or other mitigation measures. The applicant provided the following written response to these criteria. The subject wetland is not significant for any of the 10 functions and values outlined in the Vermont Wetland Rules. The project will have no adverse impact on wetland function and value. The project has been designed to manage the flow from the residential underdrains by extending the foundation drain to discharge to a regraded swale adjacent to Highland Terrace. 3. Staff considers this response does not adequately address the related criteria. Specifically, Staff recommends the Board discuss the above three criteria (a) through (c) with the applicant, including responses to the following questions. • What is the wetlands ability to carry or store flood waters, and how will that be affected by the project? • How will the project minimize sedimentation? The driveways are proposed to be gravel. • The wetland functions and values may not be significant but how is the proposed condition an improvement over existing? Finally, to address the criterion at hand, if the Board approves the wetland to be completely subsumed by the proposed development, Staff considers the requirement for fencing or landscaping to protect the resource is not applicable. C. Agriculture. The conservation of existing agricultural production values is encouraged through development planning that supports agricultural uses (including but not limited to development plans that create contiguous areas of agricultural use), provides buffer areas between existing agricultural operations and new development, roads, and infrastructure, or creates new opportunities for #SD-21-21 Staff Comments 6 6 of 11 agricultural use (on any soil group) such as but not limited to community-supported agriculture. There are no existing agricultural uses on this site or on adjacent sites. Staff considers this criterion not applicable. D. Public Services and Facilities. In the absence of a specific finding by the Development Review Board that an alternative location and/or provision is approved for a specific development, the location of buildings, lots, streets and utilities shall conform with the location of planned public facilities as depicted on the Official Map, including but not limited to recreation paths, streets, park land, schools, and sewer and water facilities. (1) Sufficient water supply and wastewater disposal capacity shall be available to meet the needs of the project in conformance with applicable State and City requirement, as evidenced by a City water allocation, City wastewater allocation, and/or Vermont Water and Wastewater Permit from the Department of Environmental Conservation. The proposed development will be served by a private water system. The elevation of the properties prevents the connection to the City water system due to inadequate water pressure. Staff notes the South Burlington Water Department must be notified at the time the properties are connected to the City wastewater system so that proper sewer and stormwater charges can be applied. The SBWD must also be informed of changes in ownership. The applicant is proposing to connect to the public wastewater system. The applicant has an approved preliminary wastewater allocation. Final water allocation is required prior to zoning permit issuance. (2) Recreation paths, storm water facilities, sidewalks, landscaping, utility lines, and lighting shall be designed in a manner that is compatible with the extension of such services and infrastructure to adjacent properties. (3) Recreation paths, utilities, sidewalks, and lighting shall be designed in a manner that is consistent with City utility plans and maintenance standards, absent a specific agreement with the applicant related to maintenance that has been approved by the City Council. 4. Driveway drainage is proposed to consist of 12-inch pipes with exactly 2-ft of cover. City standards require a minimum driveway culvert size of 18-inches with 2-ft of cover and a stone spillway at the downstream end of each culvert. Alternatively, the driveways may be graded to allow drainage to flow across them if adjacent grades allow. Staff recommends the Board require the applicant to modify the driveway drainage prior to closing the hearing. Staff considers other elements of these criteria to be met. (4) The plan shall be reviewed by the Fire Chief or his designee to insure that adequate fire protection can be provided, with the standards for evaluation including, but not limited to, minimum distance between structures, street width, vehicular access from two directions where possible, looping of water lines, water flow and pressure, and number and location of hydrants. The fire inspector has not reviewed the plans. However, given the consistency with the approved 2-lot PUD (#SD-19-35), Staff considers this criterion met. E. Circulation. The project shall incorporate access, circulation and traffic management strategies sufficient to prevent unsafe conditions on adjacent roads and sufficient to create connectivity #SD-21-21 Staff Comments 7 7 of 11 for pedestrians, bicycles, vehicles, school transportation, and emergency service vehicles between neighborhoods. In making this finding the Development Review Board may rely on the findings of a traffic study submitted by the applicant, and the findings of any technical review by City staff or consultants. (1) Roads shall be designed in a manner that is compatible with the extension of such services and infrastructure to adjacent properties. (2) Roads shall be designed in a manner that is consistent with City roadway plans and maintenance standards, absent a specific agreement with the applicant related to maintenance that has been approved by the City Council. (3) The provisions of Section 15.12(D)(4) related to connections between adjacent streets and neighborhoods shall apply. Staff considers these criteria met. 9.08 SEQ-NR SUB-DISTRICT; SPECIFIC STANDARDS The SEQ-NR sub-district has additional dimensional and design requirements, as enumerated in this Section. A. Street, Block and Lot Pattern (1) N/A (2) N/A (3) Lot ratios. Lots shall maintain a minimum lot width to depth ratio of 1:2, with a ratio of 1:2.5 to 1:5 recommended The proposed lots 2, 3 and 4have a width to depth ratio greater than 1:1.25. Staff considers this criterion met. B. Street, Sidewalk & Parking Standards N/A C. Residential Design Section 9.08 of the SBLDR lays out particular standards related to the orientation of housing, mix of housing styles, setbacks, and parking/garages. The applicant has provided two elevations and a description in support of this criterion. The applicant’s description follows. The elevations provided offer a 3 Bedroom single family residence which would be light colored contemporary home, sided with T1-11 Siding, gabled dormers, a standing seam metal roof, and a garage offset and setback 8’ from the frontline of the covered entrance porch. The elevations provided offer a 4 Bedroom single family residence which would be darker colored contemporary colonial style home, sided with T1-11 Siding with wooden trim around the front porch, gabled dormers, shingled roof, and a garage offset and setback 8’ from the frontline of the covered entrance porch. Either choice of home would be able to be mirrored in design is desired. (1) Building Orientation. Residential buildings must be oriented to the street. Primary entries for single family and multi-family buildings must face the street. Secondary building #SD-21-21 Staff Comments 8 8 of 11 entries may open onto garages and/or parking areas. (Special design guidelines apply to arterial streets; see Section 9.11). A minimum of thirty-five percent (35%) of translucent windows and surfaces should be oriented to the south. In the SEQ-NRN sub-district, residential buildings should orient their rooflines to maximize solar gain potential, to the extent possible within the context of the overall standards of the regulating plan. 5. The proposed single-family homes on Lots 2, 3 and 4 will be oriented to face Highland Terrace. Primary entries will face the street. No statement as to windows has been made; the provided elevations show very few windows on any façade. Rooflines are mixed and oriented both east west and north south. Staff recommends the Board determine whether they consider this criterion met. (2) Building Façades. Building facades are encouraged to employ a theme and variation approach. Buildings should include common elements to appear unified, but façades should be varied from one building to the next to avoid monotony. Front porches, stoops, and balconies that create semi-private space and are oriented to the street are encouraged. On the basis of the above quoted design narrative, Staff considers this criterion met. (3) Front Building Setbacks. A close relationship between the building and the street is critical to the ambiance of the street environment. (a) Buildings should be set back a maximum of twenty-five feet (25’) from the back of sidewalk. (b) Porches, stoops, and balconies may project up to eight feet (8’) into the front setbacks. The homes are proposed to be 25-feet from the right of way and approximately 50-ft from the edge of pavement, measured to the front of the porch. There is no sidewalk to measure from on Highland Terrace. Three (3) houses further south and on the same side of Highland Terrace are set back approximately 25 feet from their front lot lines. Staff recommends the Board include a condition requiring that any new home on lots 2, 3 or 4 must be set back no more than 25 feet from its front lot line. (4) Placement of Garages and Parking. For garages with a vehicle entrance that faces a front lot line, the facade of the garage that includes the vehicle entrance must be set back a minimum of eight feet (8’) behind the building line of the single or two-family dwelling. (a) For the purposes of this subsection: (i) The building width of a single or two-family dwelling, not including the garage, shall be no less than twelve feet (12’), except for a duplex with side-by-side primary entries, in which case the building width of each dwelling unit in the duplex, not including a garage, shall be no less than eight feet (8’) (ii) The portion of the single or two-family dwelling that is nearest the front lot line may be a covered, usable porch, so long as the porch is no less than eight feet (8’) wide. (b) The DRB may waive this provision for garages with vehicle entries facing a side lot line, provided that (i) the garage is visually integrated into the single or two-family dwelling; and (ii) the façade of the garage that is oriented to the street is no more than eight feet (8’) in front of the façade of the house that is oriented to the street. #SD-21-21 Staff Comments 9 9 of 11 The applicant indicated that the garages will face Highland Terrace and will be set back at least 8 feet from the building line of the house. The building/garage layout will most closely resemble the “recessed” option depicted in Figure 9-7. The building width not including the garage will be over twelve feet. Staff considers these criteria met. (c) - (d) N/A B) 15.18 CRITERIA FOR REVIEW OF PUDS, SUDVIDISIONS, TRANSECT ZONE SUBDIVISIONS AND MASTER PLANS (1) Sufficient water supply and wastewater disposal capacity is available to meet the needs of the project in conformance with applicable State and City requirements, as evidenced by a City water allocation, City wastewater allocation, and/or Vermont Water and Wastewater Permit from the Department of Environmental Conservation. The new homes are proposed to be served by two water supply wells – Lot 3 and 3 by a well on Lot 3, and Lot 4 by a well on Lot 2. The project will connect both the existing home and the proposed homes into the City wastewater system. See discussion above of preliminary wastewater allocation. (2) Sufficient grading and erosion controls will be utilized during construction and after construction to prevent soil erosion and runoff from creating unhealthy or dangerous conditions on the subject property and adjacent properties. In making this finding, the DRB may rely on evidence that the project will be covered under the General Permit for Construction issued by the Vermont Department of Environmental Conservation. See discussion under 9.06B(4) above. (3) The project incorporates access, circulation and traffic management strategies sufficient to prevent unreasonable congestion of adjacent roads. In making this finding the DRB may rely on the findings of a traffic study submitted by the applicant, and the findings of any technical review by City staff or consultants. Staff considers the proposed development of three residential units will have no adverse impact on congestion of adjacent roads. (4) 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. In making this finding the DRB shall utilize the provisions of Article 12 of these Regulations related to wetlands and stream buffers, and may seek comment from the Natural Resources Committee with respect to the project’s impact on natural resources. See discussion under 9.06B above. (5) 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. For Transect Zone subdivisions, this standard shall apply only to the location of lot lines, streets and street types, and natural resources identified in Article XII of these Regulations. The Comprehensive Plan identifies the planned development patterns for the Project area as lower intensity, principally residential development. Lower intensity principally residential is defined as follows. #SD-21-21 Staff Comments 10 10 of 11 Fostering a strong sense of neighborhood, these areas are primary residential in use, with number of units and size of buildings to be among the lowest in the City. Open spaces are accessible and thoughtfully arranged as community gathering places, and roadways should be largely limited to local traffic with low volumes. While residential dwellings need not be all detached, the general character and appearance is that of a single family neighborhood. Building heights reflect this character. Small lots and small buildings are encouraged. Commercial uses are limited to those serving a small or local population. More intense commercial or industrial uses should be avoided. Since this area allows 4 units per acre, Staff considers the proposed density compatible with the comprehensive plan. (6) 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. For Transect Zone subdivisions, this standard shall apply only to the location of natural resources identified in Article XII of these Regulations and proposed open spaces to be dedicated to the City of South Burlington. See 9.06B(1) above. (7) The layout of a subdivision or PUD has been reviewed by the Fire Chief or his designee to insure that adequate fire protection can be provided, with the standards for approval including, but not be limited to, minimum distance between structures, street width, vehicular access from two directions where possible, looping of water lines, water flow and pressure, and number and location of hydrants. All aspects of fire protection systems shall be designed and installed in accordance with applicable codes in all areas served by municipal water. This standard shall not apply to Transect Zone subdivisions. See discussion of fire safety considerations under 9.06D(4) above. (8) 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 properties. For Transect Zone subdivisions, this standard shall only apply to the location and type of roads, recreation paths, and sidewalks. See 9.06D(2) above. (9) Roads, utilities, sidewalks, recreation paths, and lighting are designed in a manner that is consistent with City utility and roadway plans and maintenance standards, absent a specific agreement with the applicant related to maintenance that has been approved by the City Council. For Transect Zone subdivisions, this standard shall only apply to the location and type of roads, recreation paths, and sidewalks. See 9.06D(3) above. (10) The project is consistent with the goals and objectives of the municipal Plan for the affected district(s). The Goals of the comprehensive plan follow. 1. Affordable & community Strong. Creating a robust sense of place and opportunity for our residents and visitors. 2. Walkable. Bicycle and pedestrian friendly with safe transportation infrastructure. 3. Green & clean. Emphasizing sustainability for long-term viability of a clean and green South #SD-21-21 Staff Comments 11 11 of 11 Burlington. 4. Opportunity Oriented. Being a supportive and engaged member of the larger regional and statewide community. The project lies within the Southeast Quadrant of the city. Southeast Quadrant objectives in the Comprehensive Plan are: 60. Give priority to the conservation of contiguous and interconnected open space areas within this quadrant outside of those areas [districts, zones] specifically designated for development. 61. Maintain opportunities for traditional and emerging forms of agriculture that complement and help sustain a growing city, and maintain the productivity of South Burlington’s remaining agricultural lands. 62. Enhance Dorset Street as the SEQ’s “main street” with traffic calming techniques, streetscape improvements, safe interconnected pedestrian pathways and crossings, and a roadway profile suited to its intended local traffic function. Staff considers this project, as a four-lot PUD, does not detract from any of the goals or objectives of the comprehensive plan. (11) The project’s design incorporates strategies that minimize site disturbance and integrate structures, landscaping, natural hydrologic functions, and other techniques to generate less runoff from developed land and to infiltrate rainfall into underlying soils and groundwater as close as possible to where it hits the ground. For Transect Zone subdivisions, this standard shall apply only to the location of natural resources identified in Article XII of these Regulations. If the Board finds the proposed wetland impacts acceptable, Staff considers the density of the proposed development adequately protective of other natural hydrologic functions. As noted above, the total impervious proposed does not exceed the half-acre threshold for requiring compliance with Section 12 standards pertaining to stormwater. C) ENERGY STANDARDS All new buildings are subject to the Stretch Energy Code pursuant to Section 3.15: Residential and Commercial Building Energy Standards of the LDRs. RECOMMENDATION Staff recommends that the Board work with the applicant to address the issues identified herein. Respectfully submitted, Marla Keene, Development Review Planner 0DUOD.HHQH )URP%LOO\5REHUWVEUREHUWV#FHDYWFRP! 6HQW0RQGD\-XO\$0 7R0DUOD.HHQH &F'DYLG0DUVKDOO 'HEE\+DQOH\ 'RQDOG.HUZLQ $QQH)URVW 6XEMHFW5((;7(51$/5(3UHOLPLQDU\DQG)LQDO3ODW$SSOLFDWLRQ+LJKODQG7HUUDFH.HUZLQ 6XEGLYLVLRQ $WWDFKPHQWV&2YHUDOO3URSRVHG&RQGLWLRQV6LWH3ODQ6HSW5HY-XQSGI&2YHUDOO([LVWLQJ &RQGLWLRQV6LWH3ODQ6HSW5HY-XQSGI+LJKODQG7HUUDFH:HWODQG0HPRSGI:HWODQG 3KRWRVSGI ,ŝDĂƌůĂ͕ WůĞĂƐĞƐĞĞƚŚĞĂƚƚĂĐŚĞĚǁĞƚůĂŶĚŵĞŵŽĨƌŽŵŽƌŝĂƌƚŽŶǁŚŽǁĂƐĂďůĞƚŽŵĂŬĞĂƐŝƚĞǀŝƐŝƚƚŽƚŚĞϮϬϵ,ŝŐŚůĂŶĚdĞƌƌĂĐĞ ƚŽƌĞǀŝĞǁĨŽƌǁĞƚůĂŶĚƐ͘,ĞƌĨŝŶĚŝŶŐƐĂƌĞĂƚƚĂĐŚĞĚĂƐǁĞůůĂƐƐŝƚĞƉŚŽƚŽƐŽĨƚŚĞĂƌĞĂ͘tĞ͛ǀĞĂůƐŽŝŶĐůƵĚĞĚƵƉĚĂƚĞƐƚŽƚŚĞ ƉůĂŶƐƚŽƐŚŽǁƚŚĞĚĞůŝŶĞĂƚĞĚǁĞƚůĂŶĚƐŽŶƚŚĞƐŝƚĞƉůĂŶƐ͘dŚĞĂƉƉůŝĐĂďůĞƉůĂŶƐƚŽďĞƌĞƉůĂĐĞĚĂƌĞϭ͘Ϭ͕ϭ͘ϭ͕ϭ͘Ϯ͕ϭ͘ϯ ĂŶĚϭ͘ϭϭ͘ƵĞƚŽƚŚĞƐŝǌĞĐŽŶƐƚƌĂŝŶƚƐŽĨƚŚĞĞŵĂŝů͕/ǁŝůůƐĞŶĚϭ͘Ϯ͕ϭ͘ϯĂŶĚϭ͘ϭϭŝŶĂĨŽůůŽǁƵƉĞŵĂŝů͘ dŚĞĞůĞǀĂƚŝŽŶƐƉƌŽǀŝĚĞĚŽĨĨĞƌĂϯĞĚƌŽŽŵƐŝŶŐůĞĨĂŵŝůǇƌĞƐŝĚĞŶĐĞǁŚŝĐŚǁŽƵůĚďĞůŝŐŚƚĐŽůŽƌĞĚĐŽŶƚĞŵƉŽƌĂƌǇŚŽŵĞ͕ ƐŝĚĞĚǁŝƚŚdϭͲϭϭ^ŝĚŝŶŐ͕ŐĂďůĞĚĚŽƌŵĞƌƐ͕ĂƐƚĂŶĚŝŶŐƐĞĂŵŵĞƚĂůƌŽŽĨ͕ĂŶĚĂŐĂƌĂŐĞŽĨĨƐĞƚĂŶĚƐĞƚďĂĐŬϴ͛ĨƌŽŵƚŚĞ ĨƌŽŶƚůŝŶĞŽĨƚŚĞĐŽǀĞƌĞĚĞŶƚƌĂŶĐĞƉŽƌĐŚ͘ dŚĞĞůĞǀĂƚŝŽŶƐƉƌŽǀŝĚĞĚŽĨĨĞƌĂϰĞĚƌŽŽŵƐŝŶŐůĞĨĂŵŝůǇƌĞƐŝĚĞŶĐĞǁŚŝĐŚǁŽƵůĚďĞĚĂƌŬĞƌĐŽůŽƌĞĚĐŽŶƚĞŵƉŽƌĂƌǇĐŽůŽŶŝĂů ƐƚǇůĞŚŽŵĞ͕ƐŝĚĞĚǁŝƚŚdϭͲϭϭ^ŝĚŝŶŐǁŝƚŚǁŽŽĚĞŶƚƌŝŵĂƌŽƵŶĚƚŚĞĨƌŽŶƚƉŽƌĐŚ͕ŐĂďůĞĚĚŽƌŵĞƌƐ͕ƐŚŝŶŐůĞĚƌŽŽĨ͕ĂŶĚĂ ŐĂƌĂŐĞŽĨĨƐĞƚĂŶĚƐĞƚďĂĐŬϴ͛ĨƌŽŵƚŚĞĨƌŽŶƚůŝŶĞŽĨƚŚĞĐŽǀĞƌĞĚĞŶƚƌĂŶĐĞƉŽƌĐŚ͘ ŝƚŚĞƌĐŚŽŝĐĞŽĨŚŽŵĞǁŽƵůĚďĞĂďůĞƚŽďĞŵŝƌƌŽƌĞĚŝŶĚĞƐŝŐŶŝƐĚĞƐŝƌĞĚ͘ ^ŝŶĐĞƌĞůǇ͕ ŝůůǇZŽďĞƌƚƐ ŝǀŝůŶŐŝŶĞĞƌŝŶŐƐƐŽĐŝĂƚĞƐ͕/ŶĐ͘ ϭϬDĂŶƐĨŝĞůĚsŝĞǁ>ĂŶĞ ^Ž͘ƵƌůŝŶŐƚŽŶ͕sĞƌŵŽŶƚϬϱϰϬϯ ϴϬϮͲϴϲϰͲϮϯϮϯǆϯϬϱ ǁǁǁ͘ĐĞĂͲǀƚ͘ĐŽŵ ďƌŽďĞƌƚƐΛĐĞĂͲǀƚ͘ĐŽŵ &ƌŽŵ͗DĂƌůĂ<ĞĞŶĞфŵŬĞĞŶĞΛƐďƵƌů͘ĐŽŵх ^ĞŶƚ͗&ƌŝĚĂǇ͕:ƵŶĞϭϴ͕ϮϬϮϭϭϮ͗ϬϰWD dŽ͗ďƌŽďĞƌƚƐΛĐĞĂͲǀƚ͘ĐŽŵ Đ͗ΖĂǀŝĚDĂƌƐŚĂůůΖфĚŵĂƌƐŚĂůůΛĐĞĂͲǀƚ͘ĐŽŵх͖ΖĞďďǇ,ĂŶůĞǇΖфĚĞďďǇΛĚĞďďǇŚĂŶůĞǇ͘ĐŽŵх͖ΖŽŶĂůĚ<ĞƌǁŝŶΖ фůĂŶĚŬĞƌǁŝŶΛŵǇĨĂŝƌƉŽŝŶƚ͘ŶĞƚх͖ΖŶŶĞ&ƌŽƐƚΖфĂŶŶĞ͘ĨƌŽƐƚΛŵĂƵƐĚ͘ŽƌŐх ^ƵďũĞĐƚ͗Z͗ydZE>͗Z͗WƌĞůŝŵŝŶĂƌǇĂŶĚ&ŝŶĂůWůĂƚƉƉůŝĐĂƚŝŽŶͲϮϬϵ,ŝŐŚůĂŶĚdĞƌƌĂĐĞͲ<ĞƌǁŝŶ^ƵďĚŝǀŝƐŝŽŶ ,ŝŝůůǇ͕ dŚĞƌĞĂƌĞϮĞůĞǀĂƚŝŽŶƐĂŶĚϯďƵŝůĚŝŶŐƐ͘WůĞĂƐĞĞǆƉůĂŝŶŚŽǁƚŚĞƐĞϮĞůĞǀĂƚŝŽŶƐƌĞƉƌĞƐĞŶƚǁŚĂƚǇŽƵĂƌĞƉƌŽƉŽƐŝŶŐ͘/ĨǇŽƵ ĂƌĞŶŽƚƉƌŽƉŽƐŝŶŐƚŽĐŽŶƐƚƌƵĐƚƚŚĞƐĞŚŽŵĞƐ͕ƉůĞĂƐĞĚĞƐĐƌŝďĞŝŶǁŽƌĚƐǁŚĂƚĞůĞŵĞŶƚƐŽĨƚŚĞƉƌŽǀŝĚĞĚĞůĞǀĂƚŝŽŶƐǇŽƵ ǁŽƵůĚůŝŬĞƚŚĞďŽĂƌĚƚŽĐŽŶƐŝĚĞƌĂƐƌĞƉƌĞƐĞŶƚĂƚŝǀĞŽĨƚŚĞĐŽŶƐƚƌƵĐƚŝŽŶƉƌŽƉŽƐĞĚĨŽƌƚŚŝƐWhĂŵĞŶĚŵĞŶƚ͘ G GGGETCETC ETC ETC ETC ETC S S S S SDUBOIS DRBUTLER DREXISTING WASTEWATERDISPOSAL SHIELDEXISTINGLOT 1UE UE ETCETCETCAPPROX. LOCATION OF EXISTINGUNDERGROUND ELECTRIC &TRANSFORMERVERMONT ROUTE 116 / HINESBURG ROADHIGHLAND TERRACEN/FS. & S.MCALLISTERn/fFARLEY LIVINGTRUSTn/fM.&M. ABRAMSn/fL. LUXENBURGn/fB. GARDNERn/fH.&M. DUBOIS450 440430420420420420460 450440440440440440 440430430430 430430 430430 420420420410410410 40040000 4000 390380360370380390400 410420430DSMBRRMAB1" = 100'18232C1.1LOCATION MAP1" = 2000'OVERALL EXISTINGCONDITIONS SITEPLANACEDONALD & LOISKERWINDONALD & LOISKERWINKERWINSUBDIVISIONNOTES1. UTILITIES SHOWN DO NOT PURPORT TO CONSTITUTE OR REPRESENT ALLUTILITIES LOCATED UPON OR ADJACENT TO THE SURVEYED PREMISES.EXISTING UTILITY LOCATIONS ARE APPROXIMATE ONLY. THE CONTRACTORSHALL FIELD VERIFY ALL UTILITY CONFLICTS. ALL DISCREPANCIES SHALL BEREPORTED TO THE ENGINEER. THE CONTRACTOR SHALL CONTACT DIG SAFE(888-344-7233) PRIOR TO ANY CONSTRUCTION.2. PROPERTY LINE INFORMATION IS BASED ON A PLAT ENTITLED "PLAT OF SURVEYDONALD & LOIS KERWIN" DATED 2018 PREPARED BY CIVIL ENGINEERINGASSOCIATES INC . THIS PLAN IS NOT A BOUNDARY SURVEY AND IS NOTINTENDED TO BE USED AS ONE. MONUMENTATION RECOVERED IS CONSISTENTWITH RECORDED DOCUMENTS.3. SITE INFORMATION IS BASED ON A FIELD SURVEY PERFORMED BY CIVILENGINEERING ASSOCIATES, INC DECEMBER 2018. CIVIL ENGINEERINGASSOCIATES, INC. SURVEY ORIENTATION IS "GRID NORTH", VERMONTCOORDINATE SYSTEM OF 1983 (HORIZONTAL) AND NAVD88 (VERTICAL)ESTABLISHED FROM GPS OBSERVATIONS ON SITE.4. CONTOUR INFORMATION IS BASED UPON LIDAR DATA FROM 2004. HORIZONTALAND VERTICAL DATUM BASED ON VCS NAD 83 AND NAVD 88.LEGENDST100EXISTING CONTOUREXISTING GRAVELEXISTING PAVEMENTEXISTING STORMEXISTING WELLEXISTING SEWER MANHOLEEDGE OF BRUSH/WOODSAPPROXIMATE SETBACK LINEAPPROXIMATE PROPERTY LINEWPROJECTLOCATION116SO. BURLINGTONWILLISTON116SEP., 20209/02/20 DSM SKETCH234 BOUTIN ROADHINESBURG VERMONT 05403209 HIGHLAND TERRACE SOUTH BURLINGTON, VT1/26/21 DSM PRELIMINARY FINALEXISTING DECIDUOUS TREEEXISTING CONIFEROUS TREE3/04/21 DSM REVISED PER CITY COMMENTSWETLANDS6/28/21 DSM ADD CLASS III WETLAND DATAFDEXISTING FOUNDATION DRAINP:\AutoCADD Projects\2018\18232\1-CADD Files-\dwg\18232-SITE.dwg, 6/30/2021 1:43:33 PM, gcarter W G G G G GUEUEUEUEUE 200' UP SLOPE ISOLATIONSSSG G G G GETCETCETCETC ETC ETC ETC ETC S S S S S S S S SSSSETCETC100' UP SLOPE ISOLATION100' DOWN SLOPE ISOLATION200' UP SLOPE ISOLATION100' DOWN SLOPE ISOLATION100' DOWN SLOPE ISOLATIONVERMONT ROUTE 116 / HINESBURG ROADHIGHLAND TERRACEN/FS. & S. MCALLISTERn/fFARLEY LIVINGTRUSTn/fM.&M. ABRAMSn/fL. LUXENBURGn/fB. GARDNERn/fH.&M. DUBOISn/fM.&M. ABRAMSn/fL. LUXENBURGEX. BUILDINGEXISTINGBUILDING432436442444 446448434438432434424428434428 450 440440430420420EXISTINGWELLAPPROXIMATE LOCATION OFEXISTING WASTEWATERDISPOSAL FIELDEXISTING 4" PVC SEWER SERVICEEXISTING 8" PVC SEWER MAINEX. 4" PVCEX. C/OTREE LIMITSTO BE RETAINEDw/ FENCING(TYP.)EXISTING LOT 1PROPOSED ELECTRICALTRANSFORMERABANDONEDWASTEWATERDISPOSALFIELDPROPOSEDPROPERTYLINE (TYP.)PROPOSEDLOT 3PROPOSEDLOT 4PROPOSEDLOT 2XXEXEXXXXXXX. CCCXXX. XXXXXXXXXXEXX. CCXXXXXXXXXEXXXXXEXEXXXXXXXXCCCXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXOOC/OC/OCOOC/OCOOOOOOOOOOOOOOOOOOOOOOOOOO/OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOEXXEXXEXTIOIOTLATIOIOOOO200' DOWN SLOPE ISOLATIONDODO'DDOWEX. GAS VALVE200' UP SLOPE ISOLATIONINE 2828W428426428 428430432432430 43442842883XXXXXXXXXXXXXXXXXXXXXXXUEUEXXXXXXWCLASS IIIWETLANDFDFDREAR SETBACK 30'10' 20'SIDE SETBACKFRONT SETBACKLOT AREA 20,000 SFDIMENSIONAL SUMMARYREQ'D.EXISTINGLOT 115%BUILDING COVERAGEEXISTINGLOT 2PROPOSEDLOT 215%12,000 SF93'12'25'35'BUILDING HEIGHT MAX.≤35'THESE PROPERTIES LIE WITHIN THE NEIGHBORHOOD RESIDENTIAL ZONING DISTRICT (NR)DSMBRRGAC1" = 40'18232C1.0LOCATION MAP1" = 2000'OVERALLPROPOSEDCONDITIONS SITEPLANACEDONALD & LOISKERWIN234 BOUTIN ROADHINESBURG VERMONT 05403209 HIGHLAND TERRACE SOUTH BURLINGTON, VTPROJECTLOCATION116SO. BURLINGTONWILLISTON116DONALD & LOISKERWINKERWINSUBDIVISIONNOTES1. UTILITIES SHOWN DO NOT PURPORT TO CONSTITUTE OR REPRESENT ALLUTILITIES LOCATED UPON OR ADJACENT TO THE SURVEYED PREMISES. EXISTINGUTILITY LOCATIONS ARE APPROXIMATE ONLY. THE CONTRACTOR SHALL FIELDVERIFY ALL UTILITY CONFLICTS. ALL DISCREPANCIES SHALL BE REPORTED TO THEENGINEER. THE CONTRACTOR SHALL CONTACT DIG SAFE (888-344-7233) PRIOR TOANY CONSTRUCTION.2. PROPERTY LINE INFORMATION IS BASED ON A PLAT ENTITLED "PLAT OF SURVEYDONALD & LOIS KERWIN" DATED 2018 PREPARED BY CIVIL ENGINEERINGASSOCIATES INC . THIS PLAN IS NOT A BOUNDARY SURVEY AND IS NOT INTENDEDTO BE USED AS ONE. MONUMENTATION RECOVERED IS CONSISTENT WITHRECORDED DOCUMENTS.3. SITE INFORMATION IS BASED ON A FIELD SURVEY PERFORMED BY CIVILENGINEERING ASSOCIATES, INC DECEMBER 2018. CIVIL ENGINEERINGASSOCIATES, INC. SURVEY ORIENTATION IS "GRID NORTH", VERMONT COORDINATESYSTEM OF 1983 (HORIZONTAL) AND NAVD88 (VERTICAL) ESTABLISHED FROM GPSOBSERVATIONS ON SITE.4. CONTOUR INFORMATION IS BASED UPON LIDAR DATA FROM 2004. HORIZONTALAND VERTICAL DATUM BASED ON VCS NAD 83 AND NAVD 88.5. WETLAND DATA PROVIDED BY ARROWWOOD ENVIRONMENTAL, DATED JUNE 22,2021. WETLAND IDENTIFICATION THROUGH FIELD INVESTIGATION BY ARROWWOODENVIRONMENTAL, 2021. WETLAND MAPPING BY ARROWWOOD ENVIRONMENTALFROM SUB-METER GRADE GPS DATA COLLECTED AT THE TIME OF DELINEATION.LEGENDST100EXISTING CONTOUREXISTING GRAVELEXISTING PAVEMENTEXISTING STORMEXISTING WELLEXISTING SEWER MANHOLEEDGE OF BRUSH/WOODSAPPROXIMATE SETBACK LINEAPPROXIMATE PROPERTY LINEWSEP., 20209/2/20 DSM SKETCHPROPOSEDLOT 315%96'11'25'≤35'PROPOSEDLOT 415%98'11'25'≤35'6%51,690 SF74'35'99'NO CHANGEN/A36,000 SFN/AN/AN/ANONE12,000 SF 12,000 SF1/26/21 DSM PRELIMINARY FINAL30%TOTAL COVERAGE MAX. 26% 26% 26%11% <1%3/04/21 DSM REVISED PER CITY COMMENTSAPPROXIMATE EASEMENT LINE3/16/21 DSM REVISED PER CITY COMMENTSWETLANDSEXISTING DECIDUOUS TREEEXISTING CONIFEROUS TREE6/28/21 DSM ADD CLASS III WETLAND DATAFDEXISTING FOUNDATION DRAINP:\AutoCADD Projects\2018\18232\1-CADD Files-\dwg\18232-SITE.dwg, 6/30/2021 1:44:41 PM, gcarter G G G G G G G G G G GWEXISTING GRAVEL DRIVEWAYn/fB. GARDNERn/fH.&M. DUBOISG G G G G G G G G G G ETC ETC ETC ETC ETC ETC ETC ETC ETC ETC ETC ETCEX.SHEDETCETCETCETCEXISTING BRICKPAVER WALKWAYSMHRIM=432.6INV. IN (8" S)=421.6INV. OUT(8" N)=421.5SMHRIM=423.4INV. IN (8" S)=414.7INV. OUT(8" N)=414.6SMHRIM=438.0VERMONT ROUTE 116 / HINESBURG ROADHIGHLAND TERRACEN/FS. & S.MCALLISTERn/fFARLEY LIVINGTRUSTEX. BUILDINGEXISTINGBUILDING432434436438442444 446448 438432434424 440EXISTINGWELLEXISTING LOT 18" POPLAR12" POPLAR10" POPLAR8" DECIDUOUS12" BIRCH8" BIRCH12" DECIDUOUS8" BIRCH18" OAK3 BOLE12" ~ 18" OAK8" SPRUCE16" PINE12" MAPLE12" DECID.18" MAPLE14" PINE(2) 14" PINE20" PINE3 BOLE8" ~ 14" DECIDUOUS10" DECIDUOUS3 BOLE8" ~ 16" DECIDUOUS24" PINE10" MAPLE8" MAPLE12" SPRUCE10" CEDAR 24" PINE(2) 8" OAK8" DECIDUOUS16" DECIDUOUS24" MAPLE12" MAPLE10" MAPLE10" MAPLEEX. GAS VALVE18" MAPLE12" PINE10" CEDAR12" MAPLE14" MAPLE2 BOLE6", 8" MAPLE12" APPLE4 BOLE4", (3) 8" MAPLE2 BOLE10", 14" MAPLE14" MAPLE2 BOLE10", 12" MAPLE30" PINE20" PINE8" APPLE12" PINE8" APPLE6" APPLE6" APPLE10" BIRCH12" BIRCHDEADDISEASED10" BIRCH8" BIRCH10" BIRCH8" OAK12" BIRCH8" OAK10" OAK6" OAK6" OAK(3) 6" OAK8" PINECLUSTER(6) 6" - 10" BIRCHCLASS IIIWETLAND50' WETLANDBUFFERFDFDFDFDGG GGETC DSMBRRMAB1" = 20'18232C1.11LOCATION MAP1" = 2000'EXISTINGCONDITIONS SITEPLANACEDONALD & LOISKERWINDONALD & LOISKERWINKERWINSUBDIVISIONLEGENDST100EXISTING CONTOUREXISTING GRAVELEXISTING PAVEMENTEXISTING STORMEXISTING WELLEXISTING SEWER MANHOLEEDGE OF BRUSH/WOODSAPPROXIMATE SETBACK LINEAPPROXIMATE PROPERTY LINEWPROJECTLOCATION116SO. BURLINGTONWILLISTON116MAR., 2021234 BOUTIN ROADHINESBURG VERMONT 05403209 HIGHLAND TERRACE SOUTH BURLINGTON, VTEXISTING DECIDUOUS TREEEXISTING CONIFEROUS TREEWETLANDS6/28/21 DSM ADD CLASS III WETLAND DATAFDEXISTING FOUNDATION DRAINP:\AutoCADD Projects\2018\18232\1-CADD Files-\dwg\18232-SITE.dwg, 6/30/2021 1:42:55 PM, gcarter W W W WG G G G G G G G G G GUEUEUEUEUEUEUEUEUEUE 200' UP SLOPE ISOLATIONSSSSSSSSWEXISTING GRAVEL DRIVEWAYFDn/fB. GARDNERn/fH.&M. DUBOISG G G G G G G G G G G ETC ETC ETC ETC ETC ETC ETC ETC ETC ETC ETC ETC S S S S S S S S S S S S EX.SHEDSSSSSSSS20'ETCETCETCETCEXISTING BRICKPAVER WALKWAY100' UP SLOPE ISOLATION30' REAR YARD SETBACK& UTILITY EASEMENT+429.5 ±SMHRIM=432.6INV. IN (8" S)=421.6INV. OUT(8" N)=421.5SMHRIM=423.4INV. IN (8" S)=414.7INV. OUT(8" N)=414.6NEW 15" CULVERTINV. IN=430.0INV. OUT=429.8NEW 15" CULVERTINV. IN=425.9INV. OUT=425.5EX. 4" SDR 35PVCSMHRIM=438.020'100' DOWN SLOPE ISOLATION200' UP SLOPE ISOLATION25' BUILDTO LINE20' WIDE UTILITY EASEMENT20' SEWEREASEMENT+ 429.8EX. C/OEX. C/OEX. C/OINV.=423.710' SIDE YARD SETBACK& UTILITY EASEMENT12' WIDEDRIVEWAYMATCHEXISTINGGRADEMATCHEXISTINGGRADEMATCHEXISTINGGRADE12' WIDEDRIVEWAY12' WIDEDRIVEWAYPROPOSED HOUSEPROPOSED HOUSEPROPOSED HOUSEPATIOPATIOPATIO+ 432.0+427.5 ±+ 427.820' WIDE UTILITYEASEMENT+ 431.7±NEW C/O20' WIDE FOUNDATION DRAIN& WATER EASEMENTSPROPOSED 4" SDR 35 PVCSEWER SERVICE, 14" PER FOOTMIN. SLOPE100' DOWN SLOPEISOLATIONNEW 15" CULVERTINV. IN=427.9INV. OUT=427.4INV.=425.9NEW C/ONEW C/OINV.=423.7±100' DOWN SLOPEISOLATIONVERMONT ROUTE 116 / HINESBURG ROADHIGHLAND TERRACEN/FS. & S.MCALLISTERn/fFARLEY LIVINGTRUSTSEX. BUILDINGEXISTINGBUILDING432434436438442444 446448 438432434424 440430EXISTINGWELLAPPROXIMATE LOCATION OFEXISTING WASTEWATERDISPOSAL FIELDEXISTING 4" PVC SEWER SERVICEEXISTING 8" PVC SEWER MAINEX. 4" PVCEX. C/OTREE LIMITSTO BE RETAINEDw/ FENCING(TYP.)EXISTING LOT 1PROPOSED ELECTRICALTRANSFORMERABANDONEDWASTEWATERDISPOSAL FIELDPROPOSED PROPERTYLINE (TYP.)PROPOSEDLOT 3PROPOSEDLOT 4EXTEND EXISTING FOUNDATIONDRAINAGE LINE, DAYLIGHTINTO SWALEPROPOSEDLOT 2FFE = 430.7±FFE CONC.= 429.2±+429.1+429.1+429.15430.2 +430.2 +429.9+429.9 +200' DOWN SLOPE ISOLATIONPROPOSED4" SDR 35 PVCMIN. SLOPE 14" PER FT.(TYP.)EUE200EX. GAS VALVEEEEFFE = 432.2±FFE CONC.= 430.7±FFE = 434.4±FFE CONC.= 432.9±200' UP SLOPE ISOLATIONUSSSO429.4+429.0 +431.7 +431.7 +431.4+431.4 +431.1+430.5 ++ 433.9+ 433.6+ 433.6432.7+W428426428 428430432432430 +432.8+432.8+432.85+430.6+430.65+430.6434UEUEUEUEUEPROPOSED 1" ABS TUBINGRATED FOR 1,000 PSIWATER SERVICE(TYP.)MAINTAIN MIN.VERTICALSEPARATIONDISTANCEPREVIOUSLY PERMITTEDWELLPERMIT # WW-4-5329432.5 +FINISH GRADE(TYP.)W 433.9 +PROPOSED 3' x 3' CONC. PADFOR HEAT PUMP w/ CONIFERTREE SCREENING(TYP.)EX. C/OCLASS IIIWETLAND50' WETLANDBUFFERFDFDFDFDDSMDSMGAC1" = 20'18232C1.2SEP., 2020LOCATION MAP1" = 2000'DONALD & LOISKERWINKERWINSUBDIVISIONPROPOSEDCONDITIONS SITEPLANACE1. UTILITIES SHOWN DO NOT PURPORT TO CONSTITUTE OR REPRESENT ALLUTILITIES LOCATED UPON OR ADJACENT TO THE SURVEYED PREMISES.EXISTING UTILITY LOCATIONS ARE APPROXIMATE ONLY. THE CONTRACTORSHALL FIELD VERIFY ALL UTILITY CONFLICTS. ALL DISCREPANCIES SHALL BEREPORTED TO THE ENGINEER. THE CONTRACTOR SHALL CONTACT DIGSAFE (888-344-7233) PRIOR TO ANY CONSTRUCTION.2. ALL EXISTING UTILITIES NOT INCORPORATED INTO THE FINAL DESIGN SHALLBE REMOVED OR ABANDONED AS INDICATED ON THE PLANS OR DIRECTEDBY THE ENGINEER.3. THE CONTRACTOR SHALL MAINTAIN AS-BUILT PLANS (WITH TIES) FOR ALLUNDERGROUND UTILITIES. THOSE PLANS SHALL BE SUBMITTED TO THEOWNER AT THE COMPLETION OF THE PROJECT.4. THE CONTRACTOR SHALL REPAIR/RESTORE ALL DISTURBED AREAS (ON OROFF THE SITE) AS A DIRECT OR INDIRECT RESULT OF THE CONSTRUCTION.5. ALL GRASSED AREAS SHALL BE MAINTAINED UNTIL FULL VEGETATION ISESTABLISHED.6. MAINTAIN ALL TREES OUTSIDE OF CONSTRUCTION LIMITS.7. THE CONTRACTOR SHALL BE RESPONSIBLE FOR ALL WORK NECESSARYFOR COMPLETE AND OPERABLE FACILITIES AND UTILITIES.8. THE CONTRACTOR SHALL SUBMIT SHOP DRAWINGS FOR ALL ITEMS ANDMATERIALS INCORPORATED INTO THE SITE WORK. WORK SHALL NOT BEGINON ANY ITEM UNTIL SHOP DRAWING APPROVAL IS GRANTED.9. IN ADDITION TO THE REQUIREMENTS SET IN THESE PLANS ANDSPECIFICATIONS, THE CONTRACTOR SHALL COMPLETE THE WORK INACCORDANCE WITH ALL PERMIT CONDITIONS AND ANY LOCAL PUBLICWORKS STANDARDS.10. THE TOLERANCE FOR FINISH GRADES FOR ALL PAVEMENT, WALKWAYS ANDLAWN AREAS SHALL BE 0.1 FEET.11. ANY DEWATERING NECESSARY FOR THE COMPLETION OF THE SITEWORKSHALL BE CONSIDERED AS PART OF THE CONTRACT AND SHALL BE THECONTRACTOR'S RESPONSIBILITY.12. THE CONTRACTOR SHALL COORDINATE ALL WORK WITHIN TOWN ROADR.O.W. WITH TOWN AUTHORITIES.13. THE CONTRACTOR SHALL INSTALL THE ELECTRICAL, CABLE ANDTELEPHONE SERVICES IN ACCORDANCE WITH THE UTILITY COMPANIESREQUIREMENTS.14. EXISTING PAVEMENT AND TREE STUMPS TO BE REMOVED SHALL BEDISPOSED OF AT AN APPROVED OFF-SITE LOCATION. ALL PAVEMENT CUTSSHALL BE MADE WITH A PAVEMENT SAW.15. IF THERE ARE ANY CONFLICTS OR INCONSISTENCIES WITH THE PLANS ORSPECIFICATIONS, THE CONTRACTOR SHALL CONTACT THE ENGINEER FORVERIFICATION BEFORE WORK CONTINUES ON THE ITEM IN QUESTION.16. PROPERTY LINE INFORMATION IS APPROXIMATE AND BASED ON EXISTINGTAX MAP INFORMATION. THIS PLAN IS NOT A BOUNDARY SURVEY AND ISNOT INTENDED TO BE USED AS ONE.17. THE CONTRACTOR IS RESPONSIBLE FOR OBTAINING TESTING ANDINSPECTION SERVICES INDICATED IN THE CONTRACT DOCUMENTS, TYPICALFOR CONCRETE AND SOIL TESTING.18. THE CONTRACTOR IS RESPONSIBLE FOR ALL LAYOUT AND FIELDENGINEERING REQUIRED FOR COMPLETION OF THE PROJECT. CIVILENGINEERING ASSOCIATES WILL PROVIDE AN AUTOCAD FILE WHEREAPPLICABLE.19. THE OWNER SHALL BE RESPONSIBLE FOR THE INSTALLATION OF ANY ANDALL SAFETY FENCES OR RAILS ABOVE EXISTING AND PROPOSED WALLS.THE OWNER SHALL VERIFY LOCAL, STATE AND INSURANCE REQUIREMENTGUIDELINES FOR THE INSTALLATION AND VERIFY ANY AND ALL PERMITTINGREQUIREMENTS.GENERAL NOTESPROJECTLOCATION116SO. BURLINGTONWILLISTON116GGETC 432432430430GG GGETCETCGGGG 434434WSTSWEPROPOSED GRAVELPROPOSED SWALEPROPOSED ELECTRICPROPOSED STORMPROPOSED GRAVITY SEWERPROPOSED WATERPROPOSED WELLSPROPOSED SEWER MANHOLEDPROPOSED STORM MANHOLEPROPOSED CATCH BASINREBAR SETPROPOSED SHUT OFFPROPOSED UTILITY POLEPROPOSED EDGE OF BRUSH/WOODSPROPOSED SETBACK LINEPROPOSED PROPERTY LINEPROPOSED YARD DRAINLEGENDETCGSTSW100EXISTING CONTOUREXISTING FENCEEXISTING GRAVELEXISTING SWALEEX. ELEC., TEL. & CABLEEXISTING GASEXISTING STORMEXISTING GRAVITY SEWEREXISTING WATEREXISTING WELLEXISTING SEWER MANHOLEEXISTING UTILITY POLEEDGE OF BRUSH/WOODSAPPROXIMATE SETBACK LINEAPPROXIMATE PROPERTY LINEIRON ROD/PIPE FOUNDWEXISTING PAVEMENTEXISTING DECIDUOUS TREEEXISTING CONIFEROUS TREEEXISTING SHUT OFFXXXTREE TO BE REMOVEDAPPROXIMATE EASEMENT LINEPROPOSED EASEMENT LINEWETLANDSFDEXISTING FOUNDATION DRAINFDPROPOSED FOUNDATION DRAIN9/02/20 DSM SKETCH234 BOUTIN ROADHINESBURG VERMONT 05403209 HIGHLAND TERRACE SOUTH BURLINGTON, VT1/26/21 DSM PRELIMINARY FINAL3/04/21 DSM REVISED PER CITY COMMENTS3/16/21 DSM REVISED PER CITY COMMENTS4/21/21 DSM REVISED PER STATE COMMENTS6/28/21 DSM ADD CLASS III WETLAND DATAP:\AutoCADD Projects\2018\18232\1-CADD Files-\dwg\18232-SITE.dwg, 6/30/2021 1:42:20 PM, gcarter 802-864-2323 FAX: 802-864-2271 web: www.cea-vt.comCIVIL ENGINEERING ASSOCIATES, INC.ACELOCATION MAPNOT to SCALEP1Donald & Lois Kerwin1420 Hinesburg Road, South Burlington, VTPROPOSED 3 LOT SUBDIVISIONRECEIVED FOR RECORDING IN THE LAND RECORDS OF THE CITY OF SOUTHBURLINGTON, VERMONT, AT______________ O'CLOCK ON THE ______ DAY OF__________, 20_____.ATTEST: ____________________________, CITY CLERKAPPROVED BY RESOLUTION OF THE DEVELOPMENT REVIEW BOARD OF THECITY OF SOUTH BURLINGTON, VERMONT, ON THE _____ DAY OF _____________,20____, SUBJECT TO THE REQUIREMENTS AND CONDITIONS OF SAIDRESOLUTION. SIGNED THIS _____ DAY OF ______________, 20______.BY ___________________________________, CHAIRPERSONTo the best of my knowledge and belief this plat depictsthe results of a survey conducted by me as described in"Survey Notes" above, based upon our analysis of landrecords and evidence found in the field. Existingboundaries shown are in substantial conformance with therecords, except as noted. This plat is in substantialcompliance with 27 VSA 1403, "Recording of Land Plats".This statement valid only when accompanied by myoriginal signature and seal.____________________________________________________Timothy R. Cowan VT LS 597PROJECTLOCATION116- Survey Notes -1. Purpose of this survey is to retrace, monument, document and subdivide theboundaries of an existing parcel of land deeded to Donald and Lois Kerwin bywarranty deed dated July 8, 1963 recorded Volume 66 Page 111 and warrantydeed dated January 11, 1967 recorded Volume 85 Page134 of the City of SouthBurlington Land Records. Other neighboring property lines and buildings shownMAY be approximate only, and are shown for information purposes only.2. Field survey was conducted fall 2018 and consists of a closed-loop traverseutilizing a robotic total station instrument. Bearings shown are from Grid North,Vermont Coordinate System of 1983, based upon our GPS observations on oradjacent to the site (Reference Frame NAD83 (2011, Epoch 2010)).3.Iron pipes shown as “found” are typically labeled with inside diameter, rods withoutside diameter, unless otherwise indicated. Condition of pipes, rods andmarkers found are “good” or "fair" unless otherwise noted. Cornersdenoted “Set” typically consist of 5/8” diameter rebar capped with aluminum disksstamped “Civil Engineering Assocs. - VT LS 597 & VT LS 109314”, typically setflush with existing grade.4. Not being within the scope of this survey, Civil Engineering Associates, Inc. hasconducted no investigation whatsoever respecting whether or not the propertyand each component thereof is in compliance with state or local permits.5. Utilities shown do not purport to constitute or represent all utilities located upon oradjacent to the surveyed premises. Existing utility locations are approximate only.Buried utilities shown are depicted based solely on surface indications. Actuallocations may vary. Contact Dig Safe (888-344-7233) prior to any construction.6. Parcels lie in the Southeast Quadrant Neighborhood Residential Zoning District.7. Vermont Agency of Transportation Highway Project NRS-140 dated October 1933.- Referenced Plats or Plans -A. "Plot Plan; Donald F. Kerwin Property", prepared byWebster-Martin, Inc., dated June 18, 1963, Map Slide 42.B. "Lot Layout - H. Dubois", dated August 1969, Map Slide 94.C. "Plat of Subdivision for Smart Associates", prepared by TrudellConsulting Engineers, dated 1978, Map Slide 113.D. "Proposed 2 Lot Subdivision Donald & Lois Kerwin", preparedby Civil Engineering Associates, Inc.E. "Kerwin Subdivision Proposed Conditions Site Plan", preparedby Civil Engineering Associates, Inc.GEXISTING FENCEEXISTING GRAVELEXISTING GASEXISTING WELLEXISTING SEWER MANHOLEEXISTING UTILITY POLEEDGE OF BRUSH/WOODSEXISTING SETBACK LINESUBJECT PROPERTY LINEIRON ROD/PIPE FOUNDT-BAR FOUNDWSO. BURLINGTONWILLISTON116ABOVE GRADE/BELOW GRADENOW OR FORMERLYCAPPED REBAR PROPOSEDAG/BGN/F- Legend -PROPOSED PROPERTY LINEPROPOSED SETBACK LINECALCULATED POINTIRF/IPFPROPOSED EASEMENT LINECRP1/26/21 DSM PRELIMINARY FINAL3/04/21 DSM REVISED PER CITY COMMENTSCAPPED REBAR SETCRSP:\autocadd projects\2018\18232\1-cadd files-\dwg\18232-PLAT.dwg, 3/10/2021 11:03:52 AM, gcarter G G G G G G G G G G GL DRIVEVEWAYWAYEXISTINXISTINSTING GRAVEGG GRAVLDRIVEDRIVWALDRIVEVWAEXISSTINNGGGGRAVVEELDDRRIRIRIVEWEWWWAWAAYYYEEXXIISSTTINNGGRRRAAAVAVVEELDDRRRRVVVWAAYAYYWWWWWAVVEERRIDVEELLAAVVGGRGGTIINNSSSTEEXXAAAAAAYEEEEEWRRRRRIILDAVVVVEVERRRGGTITIINXISISn/fB. GARDNERn/fH.&M. DUBOISGG GGGG GGGGGGG GG GG GG GG GGGGETCETCETCETEETCETCETTTCETCETCEETCCCETCGGETCEETCEETCETCEETCTCCCTTTTCTCGGGETCETTCTCTCTCCCCCCCCCETTEEECETTTCCCCCCCETCEETCCCCETCETETETCETCETCETCETCETCTCTCCETCCE ETCETCETCTETEEETCETCTCTCTCCTCTCTETETETTEETEEEEEEEEEECCEEEEEEEX.EESHEDSHEDSHEDSHEDDETCETCETTTCTCTCTCETCTCTCETCCCETCTETTTCTCCCCCCETCETCETCEETTCCCCEETTCCETCETCETCCCETETCETCCEECETCEETTTCCTTTCCCCETCTCTCCCEXISTING BRICKRIBRBRPAVER WPALKWAYWAWAYWWAWA+429.5 +429.5 +±+++++++++++++SMHSMHRIM=432RIM=43243222222...66.6.6INV. ININV. INN((8(8" S)(8" S)8" S)8" S)8" S)8" S)(8=421.6==421====INV. OUINV. OU OUUOUUT(8"T(8" T(8" N(8" N)8" N)T(8" NT(8" NN)NT8)=421.555)))SMSMSMHSMHRIM=423RIMRI.4INV. ININ (8" S)=414.77INV. OUINV. OT(8" N)=414.614.SSMSMSMHSMSSMSSMRIMRIRIM=4RIM=438RIMRIIRIMIMR.0+ 429.8+ 429.89888884422998+49898988442222++++889292242+4+8884424+++4294298498298+92+984+9.842+428428+4298+4298+298+2988294298824829429882944892929984+894++299+48949494298429+42++2+29842.42.8842+92+29++49429PROPOSED HOUSEEOSED HOUSEPROPOSEDD PROPOSED HOUOSEOOSSHOUUH+++++++++++++++++++++++ 432.0432.032.04323232320+443332220434343+0002032324344202433+0324320420320+2424+2.434304430+430+4320+30+320043232003032320032+4+40232032+24024323240243243242004322432+3+3043.43.0243232432432++427.5 +427.5 ±±+++++ 427.8427.84242424242++442278++44227278+4422727788++442424227787487+4+48842+742++72+2742784288+42.842+.842.4224874844278784+42.8+47874+4+7.8+7282++47+7+28+477+4827+274+742+42+428272742277+42742+274+27+4+ 43+ 431.7+++±+++++++++++VERMONT ROUTE 116 / HINESBURG ROADHIGHLAND TERRACEN/FS. & S.MCALLISTERn/fFARLEY LIVINGTRUSTSDINGNGNGNNNLDEX. BUIX. BEX. BEX. BEXEXEXLNGGGGEXISTINEXISTINEXISTINTINTTINNGGGBUILDINBUILDINLDINGGGBUBUB43644343436436363644384383843843344422444242444444444444444444444444444444444 4464444646446446444444484484484488484844484444844884444 4384383843843834432324324434343443443444343424424424442 4404404044040440444044TREE LIMITSTO BE RETAINEDw/ FENCING(TYP.)EXISTING LOT 1FFE = 430.7±±ECONONCC.FFE CONOC.FFE COO= 429.22±±++4+4+4++++++4++++++44+429429+429+42+42949+442999+442299992924+29944++4+++4+44444.1.1.1.1..111.1+42+4++44+4244429.1429.141429.142111911+++++42+42+42+4+4++++++++++++++++429.1+429.1429+42+42944249.19+119.1.115555555555555555555555529.129.159.15191199991111.111911191919..991129.129.19.929999999999.19.19.9999991991999292929.129992944294294222924294222929294292942424222929292929+42+42+42+4+42++44+4+44+442++4+++4+++++++42430.2 +430.2 +4330.2 +30004434444344343430430303000000200.2022222 22+2+2++++43433443332 +2 2230.23000.243430443430+++2 +2+222+300330004343443+22222+++++++++++++++++++430.2 +0.30020222++30434330.22+434343430.30302244444444343434434343343043434343030303303030000303000000000.202.2220.2222222+222222+2+22+++++++++++++++++++++++++++429.9+99.9+92+++++++++++++429.9 +429.9 +9++++++++++++++SHOUHEX. GASSSSVALVE2±2FFE = 4FFE = 432.2±32.22±FFE CONFFE CONC.CFCNFE CO= 430.7±±= 430.7=±34.4±4.4±44FFE = 4FE = 4FFE = 434334.344±±4±34.4FFE CFFEFFEFE CONFE COE CONC.C.= 432.9= 432.9±±±±29.1991999.191919199..12929929292929424119111+42+++9.19.1++++++++++429.4+4+4429.0 +4429.0 +429.0429.0294431.7 +.7 ++4444343133313131 71.777777+77+7++43443.7 .77431433311434437++7++1.71177743131434331314447+7+71777 +++++++++++++++++431.4331.7 +31311.77+433131 71317+77434313177 .7 443444444344344313433331331313131131311111111....171.77.777777777777+77+7+++++++++++++++++++++++++431.4+4+++++44+44++4+4343131.4 +31.4 +31.1.++++++++++++431.1+4314331 14304330.5 +30.5 +5055050530.+++++ 433.9+ 433 933 9+++++ +++++++++++++++3.9933+ 433.6+ 433.6+++++++++++++++++++ 433.6++++++432.7+432.7+432.73432.7+32.7+32.7+77+43232432.7432.74434337432.73432428842828842842842442642662262642642442424288882842828428888282828442824284242424304304304300300430043043043434 43434324443343243232322323223232324323243434323232430430330043043343 +432+432+432+432+43243443324434333243+43232444+43243432434+4422.82.82.88882.888828888.82.8288882.2.8222...228228828882888888888222232.432.8432.832.82.882.882.883222884433222888328832222.333+43+434433434343434+4333+4344++++++++++++44++4+4++434333443+4+++++++++++++++++++++++432+432+43243+443323322+444343323+44343+43+4432+4323243+43+4444434344343+4343+4334322+4+4+4323232+42+4+43+3332.85.858322855885855558528285555282+432.++++++430.6+430430.6043043+434300+4+44363300+4460304+4+4043434.6.66666.6+++++++++++4+4+4+4+4+4+++4+4+++4+4++4+++++++++++++4+44444+4+430.6+430+430.6+430.630.60+443300330300+440304060.630+4304304306060.64343430430+430+40303030303030300+4030300640.40064304304330630630043430430063063064300000.6.6.6.66.6+4+++++++0650650656566565655565655555656565566656565666565656556565556655565565566655565656555556666066066660006565656++44+4+4+4444+4+++++++++++++++++++++++4+430+43+4++4++++430.6430.666.6.6.0+++4+430.6 .60434434434344343434344344344344344343434428282888844242424281555151515115151555151115551515515155555555+4++++++++4±4±7TEMPORARY STOCKPILELOCATION FOR PROJECTAPPROXIMATE AREAS OFDISTURBANCE = 0.95± AC.INSTALL SILT FENCE,SEE DETAIL, SHEET C3.0(TYP.)XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX3838++++++++++++++++++++++++432.5 +324433.9433.9 ++++++++++++++++++++++++++CLASS IASASIIWETLANDWEWELLATL66 27888842929292929429442224393.93+45+54++XXTLATLATLALTLANDNDNDNDLALALAAATL550' W50' WETWETEWWTTLETTLTTTBUFFERFERRRBUFFERERERERDSMDSMBRR/GAC1" = 20'18232C1.3LOCATION MAP1" = 2000'DONALD & LOISKERWINKERWINSUBDIVISIONPROPOSED EPSCPLANACEPROJECTLOCATION116SO. BURLINGTONWILLISTON116GGETC 43243243224324304343043430430433GG GGETCTCETCTGGGG 4344343434WSTSSSSWEPROPOSED GRAVELPROPOSED SWALEPROPOSED ELECTRICPROPOSED STORMPROPOSED GRAVITY SEWERPROPOSED WATERPROPOSED WELLSSSPROPOSED SEWER MANHOLEDPROPOSED STORM MANHOLEPROPOSED CATCH BASINREBAR SETPROPOSED SHUT OFFPROPOSED UTILITY POLEPROPOSED EDGE OF BRUSH/WOODSPROPOSED SETBACK LINEPROPOSED PROPERTY LINEPROPOSED YARD DRAINLEGENDETCETGGSTSWW100EXISTING CONTOUREXISTING FENCEEXISTING GRAVELEXISTING SWALEEX. ELEC., TEL. & CABLEEXISTING GASEXISTING STORMEXISTING GRAVITY SEWEREXISTING WATEREXISTING WELLEXISTING SEWER MANHOLEEXISTING UTILITY POLEEDGE OF BRUSH/WOODSAPPROXIMATE SETBACK LINEAPPROXIMATE PROPERTY LINEIRON ROD/PIPE FOUNDWEXISTING PAVEMENTEXISTING DECIDUOUS TREEEXISTING CONIFEROUS TREEEXISTING SHUT OFFXXXTREE TO BE REMOVEDAPPROXIMATE EASEMENT LINEPROPOSED EASEMENT LINEWETLANDSFDEXISTING FOUNDATION DRAINFDPROPOSED FOUNDATION DRAINSEP., 20209/02/20 DSM SKETCH234 BOUTIN ROADHINESBURG VERMONT 05403209 HIGHLAND TERRACE SOUTH BURLINGTON, VT1/26/21 DSM PRELIMINARY FINAL3/04/21 DSM REVISED PER CITY COMMENTS3/16/21 DSM REVISED PER CITY COMMENTS6/28/21 DSM ADD CLASS III WETLAND DATAP:\AutoCADD Projects\2018\18232\1-CADD Files-\dwg\18232-SITE.dwg, 6/30/2021 1:41:40 PM, gcarter ACEC2.0LOCATION MAP1" = 2000'DETAILSDSMDSMGACAS SHOWN18232SEP., 2020DONALD & LOISKERWIN234 BOUTIN ROADHINESBURG VERMONT 05403KERWINSUBDIVISION209 HIGHLAND TERRACE SOUTH BURLINGTON, VTPROJECTLOCATION116SO. BURLINGTONWILLISTON116N.T.S.TYPICAL GRAVEL SURFACE SECTIONS-004S-004 Gravel Sec12" DENSE GRADEDSUBBASE6" CRUSHED GRAVEL(FINE)SEPARATION GEOTEXTILECOMPACTED SUBGRADEREVISED 11/10/201431OR ASSHOWNON PLANS4" MINIMUM TOPSOIL, SEED ANDMULCH ALL SIDESLOPE- USE EROSION MATTING (WHENREQUIRED) TO ESTABLISHVEGETATION, PARTICULARLY ONLOW SIDE OF ROADWAYNOTES:PAVEDN.T.S.DD+2'6"6"TYPICAL SEWER TRENCH DETAIL5'-0" MIN. COVER (PLOWED AREAS)4'-0" MIN. COVER (TYPICAL)6"1. COMPACTION OF BACKFILL AND BEDDING SHALL BE AMINIMUM OF 90% (95% UNDER ROADWAY SURFACES) OFMAXIMUM DRY DENSITY DETERMINED IN THE STANDARDPROCTOR TEST (ASTM D698).2. BEDDING MATERIAL SHALL NOT BE PLACED ON FROZENSUBGRADE.3. APPROVED BACKFILL SHALL NOT CONTAIN ANY STONES MORETHAN 12" IN LARGEST DIMENSION (6" IN ROADWAYS, 1 1/2""MAXIMUM DIAMETER WITHIN 24" OF THE OUTSIDE OF THEPIPE), OR CONTAIN ANY FROZEN, WET, OR ORGANIC MATERIAL.4. TRENCHES SHALL BE COMPLETELY DEWATERED PRIOR TOPLACING OF PIPE BEDDING MATERIAL AND KEPTDEWATERED DURING INSTALLATION OF PIPE AND BACKFILL.5. IN TRENCHES WITH UNSTABLE MATERIALS OR HIGH WATERTABLE, TRENCH BOTTOM SHALL FIRST BE STABILIZED BYPLACEMENT OF FILTER FABRIC THEN CRUSHED STONE (3/4"MAXIMUM).6. THE SIDES OF TRENCHES 4' OR MORE IN DEPTH ENTERED BYPERSONNEL SHALL BE SHEETED OR SLOPED TO THE ANGLE OFREPOSE AS DEFINED BY O.S.H.A. STANDARDS.7. BEDDING MATERIAL FOR WASTEWATER LINES SHALL CONSISTOF CRUSHED STONE, GRAVEL, OR SAND WITH A MAXIMUM SIZEOF 34". SUBMIT A SAMPLE TO THE ENGINEER FOR APPROVAL.8. ALL JOINTS TO BE INSPECTED BY OWNER/ENGINEER/TOWNPRIOR TO BACKFILL.APPROVED BACKFILLTHOROUGHLY COMPACTEDIN 8" LIFTS2" RIGID INSULATION WHENDEPTH OF PIPING IS LESSTHAN MINIMUM NOTED4" WIDE MAGNETIC"SEWER" TAPE INSTALLEDAPPROX. 2' BELOW SURFACESEWER LINE, SEE PLANFOR TYPE AND SIZEPIPE BEDDINGUNDISTURBED SOILOR ROCKTOPSOIL, RAKE,SEED & MULCHUNPAVEDREVISED 12/08/2016SWR-001SWR-001 Trench(SEE SITE PLAN)5'-0" MIN. COVER OVER FORCE MAINSN.T.S.SEWER SERVICE CONNECTIONREVISED 08/01/2014SWR-003PLANELEVATIONFLOWUSE 4"x8' PVC PIPE TO MARKLOCATION AND DEPTH OFSERVICE CONNECTION. EXTENDFROM PLUG TO 6" MIN. ABOVEFINISH GRADE.- CONTRACTOR TO PROVIDE 3 LOCATION TIES TOEND OF LATERAL TO BE INCLUDED ON "AS-BUILT"DRAWINGS. (IF CONSTRUCTION IS NOTCONCURRENT WITH LATERAL)- SEE TYPICAL TRENCH FOR BEDDING ANDBACKFILL REQUIREMENTS.4" 22 12° OR 45° ELBOWROTATED AS REQUIREDSEWER MAINEXISTINGSEWER MAIN4" 22 12° OR 45° ELBOWROTATED AS REQUIRED4" MIN. SDR 35 PVC SEWERSERVICE, CONTINUE AS PERPLAN AND INSTALL PVCCAP. SEE SITE PLAN FORSLOPE AND ELEVATIONS(MIN. SLOPE = 1/4" PER FT.)45° WYE SADDLE CONNECTION(COORDINATE PREFERREDCONNECTOR w/PUBLICWORKS DEPARTMENT)(@ EXISTING SEWER MAIN)STAINLESSSTEEL CLAMPSWR-003 Service Con-EXN.T.S.TYPICAL CLEANOUT DETAILREVISED 8/28/2017SWR-007BSWR-007B COCONCRETE CRADLE w/ 3 MILPOLYETHYLENE PLACEDBETWEEN PIPE & CONCRETE4" SDR 35 PVC45° ELBOWFLOW*CLEANOUT TO BE INSTALLED AT INTERVALS OFNOT MORE THAN 100 FEET, AND UPSTREAM OFBEND(S) IN BUILDING SEWER(S) WHEN CHANGE INDIRECTION EXCEEDS 45° (USE LONG SWEEPFITTINGS WHEN EXCEEDING 45°)GRASSPAVEMENTCLEANOUT BOXINDEPENDENT OF PIPEPVC CAP6" D.I. VALVE BOX TOPSECTION w/ COVERMARKED "CLEANOUT"(CONTACT ENGINEER FOR ANY CLARIFICATIONS OR CONFLICTS)MINIMUM ISOLATION DISTANCESREVISED 08/01/2014SWR-100WR-100 Sewer IsoHorizontal Distance (Feet)Leach field Septic TankSewer1. Isolation distances to well locations may vary due to site conditions - contact Engineerfor verification with the Vermont Water Supply Rule Regulations.2. For mound disposal systems, the limit of mound fill must be 25 feet from any downhillproperty line and 10 feet from side or uphill property lines.3. If a curtain or foundation drain is downslope of the leach field, the leach field cannotbe closer than 75 feet to the drain. If the drain is upslope of the leach field, it shall be35' if possible and 20' minimum.4. Sewers under roads, driveways or parking lots may require protective conduits orsleeves.Drilled Well Serving 1 Home - Up Slope of Disposal FieldDrilled Well Serving 1 Home - Down Slope of Disposal FieldShallow Well or Spring, Up Slope of Disposal FieldShallow Well or Spring, Down Slope of Disposal FieldLakes, Ponds and ImpoundmentRivers, StreamsDrainage Swales, Roadway DitchesMunicipal Water MainService Water LinesRoadways, Driveways, BuildingsTop of embankment or slope > 30%Property LineTreesReplacement AreaFoundation, Footing Drains505075752525-5025 5101010-10505075752510-1010 5-1010-- 100 (Min.) 200 (Min.) 150 (Min.) 500 (Min.) 50 50 25 50 25 10 25 10 (25 Downslope) 10 10 35 (75 Downslope)NTSTypicalHouseAccess RoadW50' MIN. ISOLATIONFROM SEWER SYSTEM1" ABS TUBING,PRESSURE RATEDFOR 100 psi (10' MIN.FROM SEWER PIPING)PROPOSED WELL4" PVC8"x4" SCH. 80 PVCWYE & 45° ELBOWSINGLE FAMILY LOTWATER/SEWER ISOLATION PLANN.T.S.TREE PROTECTION - FENCINGREVISED 2/12/2015L-006L-006 Tree ProtectionEXISTINGGRADEDRIP LINEFENCENOTES:1. THIS FENCE SHALL BE LOCATED OUTSIDE THE DRIP LINE OF THE TREETO BE SAVED AND IN NO CASE CLOSER THAN 5' TO THE TRUNK OFANY TREE.2. FENCE POST SHALL BE STANDARD STEEL POSTS OR WOOD POSTSWITH A MINIMUM CROSS SECTIONAL AREA OF 3.0 SQ. IN.3. THE FENCE MAY BE EITHER 40" HIGH SNOW FENCE, 40" PLASTIC WEBFENCING OR ANY OTHER MATERIAL AS APPROVED BY THE ENGINEER..ST-011N.T.S.END SECTION DETAILREVISED 01/14/2015ST-011 End SectionAA31A-A24" MIN.CULVERT & END SECTIONTYPE I STONE FILLMATCH DITCH SECTION8'TYPE I STONE FILL(18" MIN. THICKNESS)CONTINUE STONEFILL IF REQUIREDEND SECTIONCULVERTSTABILIZATION FABRICMIRAFI 500X OR APPROVEDEQUALDIA.9/2/20 DSM SKETCH1/26/21 DSM PRELIMINARY FINAL15" DIAMETER HDPE#4 REINFORCINGHOOP @ 4'o/cFINISH GRADEN.T.S.SHALLOW CULVERT CONCRETEFOOTING ENCASEMENT DETAIL5'-0"6"12"MIN.CONCRETE FOOTINGFLOWABLE FILL3/04/21 DSM REVISED PER CITY COMMENTS\\Cea-pdc1\projects\AutoCADD Projects\2018\18232\1-CADD Files-\dwg\18232-Details and Spec.dwg, 3/9/2021 9:17:34 AM, gcarter C2.1LOCATION MAP1" = 2000'DETAILSACEDSMDSMGACAS SHOWN18232SEP., 2020DONALD & LOISKERWIN234 BOUTIN ROADHINESBURG VERMONT 05403KERWINSUBDIVISION209 HIGHLAND TERRACE SOUTH BURLINGTON, VTPROJECTLOCATION116SO. BURLINGTONWILLISTON116N.T.S.DRILLED WELL DETAILREVISED 08/01/2014W-010W-010 Drilled WellNOTE:THE WELL SHALL BE CONSTRUCTED IN ACCORDANCE WITH THE VERMONTWATER SUPPLY RULE - CHAPTER 21 (PART II SMALL SCALE WATER SUPPLY SYSTEMS)DEPTH OF WELLDESIGN BASIS:AVERAGE DAILY DEMAND = 600 GALLONS (4 BEDROOMS @ 150 GPD)MAXIMUM DAY DEMAND 600 GPD/720 MIN. = 0.8 GPM INSTANTANEOUSPEAK DEMAND = 5 GPM (RESIDENTIAL UNIT)REQUIRED MINIMUM SEPARATION DISTANCES FORWELLSPOTENTIAL SOURCE OF CONTAMINATIONSEPARATION DISTANCEAND OTHNER SITING LIMITATIONSRoadway, Parking Lot (outer edge of shoulder) 25'Driveway (<3 Residences) 15'Subsurface Wastewater Piping and Related Tanks 50'Property Line 10'Surface Water 10'Flood Ways NOT ALLOWEDConcentrated Livestock Holding Area 200'and Manure Storage Systems0.624"5'-6" MIN.SUBMERSIBLE PUMP w/CHECK VALVE @DISCHARGE CONNECTION6" CASING (19#/FT) TO 6"ØHOLE TO BEDROCK (USENEAT GROUT CEMENT TOGROUT CASING)PITLESSADAPTERELECTRICAL SERVICECONDUITVENTED SANITARY WELLCAPWATER LINE TO HOUSEN.T.S.GRASS LINED DITCHREVISED 10/07/2015ST-014ST-014 Grass Ditch1313EXISTINGGRADETOPSOILEROSION CONTROLMATTING IN DITCHES w/PROFILE GRADESEXCEEDING 5%. STAPLE ASPER MANUF. SPECS.12"MIN.2' MIN.WIDTHN.T.S.ELECTRICAL TRENCH - SECONDARYREVISED 08/01/2014M-008M-008 Elec Trench Secondary24" MIN.24" MIN.12" MIN.APPROVED BACKFILLTHOROUGHLY COMPACTEDIN 8" LIFTSELECTRICAL CABLE MARKINGTAPE SHALL BE PLACED 8" TO12" BELOW FINISH GRADETELEPHONECABLEMIN. 4" SAND OR FINEGRAVEL ON ALL SIDESOF CONDUITELECTRICAL CONDUITNOTES:N.T.S.TYPICAL STORM TRENCHREVISED 12/08/2016ST-003D+2'ST-003 Storm TrenchPAVED6"6"COVER PER PLANAPPROVED BACKFILLTHOROUGHLY COMPACTEDIN 8" LIFTSSTORM LINE, SEE PLANFOR TYPE AND SIZEPIPE BEDDINGUNDISTURBED SOILOR ROCKTOPSOIL, RAKE,SEED & MULCHUNPAVED1. COMPACTION OF BACKFILL AND BEDDING SHALL BE AMINIMUM OF 90% (95% UNDER ROADWAY SURFACES) OFMAXIMUM DRY DENSITY DETERMINED IN THE STANDARDPROCTOR TEST (ASTM D698).2. BEDDING MATERIAL SHALL NOT BE PLACED ON FROZENSUBGRADE.3. APPROVED BACKFILL SHALL NOT CONTAIN ANY STONES MORETHAN 12" IN LARGEST DIMENSION (6" IN ROADWAYS, 1 1/2""MAXIMUM DIAMETER WITHIN 24" OF THE OUTSIDE OF THEPIPE), OR CONTAIN ANY FROZEN, WET, OR ORGANIC MATERIAL.4. TRENCHES SHALL BE COMPLETELY DEWATERED PRIOR TOPLACING OF PIPE BEDDING MATERIAL AND KEPTDEWATERED DURING INSTALLATION OF PIPE AND BACKFILL.5. IN TRENCHES WITH UNSTABLE MATERIALS OR HIGH WATERTABLE, TRENCH BOTTOM SHALL FIRST BE STABILIZED BYPLACEMENT OF FILTER FABRIC THEN CRUSHED STONE (3/4"MAXIMUM).6. THE SIDES OF TRENCHES 4' OR MORE IN DEPTH ENTERED BYPERSONNEL SHALL BE SHEETED OR SLOPED TO THE ANGLE OFREPOSE AS DEFINED BY O.S.H.A. STANDARDS.7. BEDDING MATERIAL SHALL CONSIST OF CRUSHED STONE,GRAVEL, OR SAND WITH A MAXIMUM SIZE OF 34". SUBMIT ASAMPLE TO THE ENGINEER FOR APPROVAL.D9/2/20 DSM SKETCHNOTES:1. INTERIOR JOINTS SHALL NOT BE GROUTED.2. IF DEPTH OF MANHOLE IS 7' OR LESS FROM RIM TO CENTERLINE INVERT, THEN A FLATTOP SHOULD BE SUBSTITUTED FOR THE CONE SECTION.3. CENTERLINE INVERT ELEVATION IF SHOWN ON THE PLAN IS THE AVERAGE INVERT INTHE MANHOLE. THE INLET IN SHALL BE 0.05 FEET HIGHER AND THE INLET OUT SHALLBE 0.05 FEET LOWER.4. PRECAST RISER AND BASES FOR MANHOLES SHALL CONFORM TO ASTM SPEC C-478.2'-0" MIN. RADIUSN.T.S.TYPICAL SANITARY SEWER MANHOLEREVISED 1/29/2015SWR-004SLOPESLOPE90° MAX.PLANFINISH GRADEOPENINGASREQUIRED48"1" RISEELEVATIONSECTIONBARREL4"8"BASE AS REQ'D.CONE SECTIOND/2 MAX.0.6DDMANHOLE WALLMANHOLE OPENINGABOVE24" LEBARON FRAME & COVER LC266TYPE C OR EQUAL, ADJUST TO MEETFINISH GRADE AFTERPAVEMENT BASE COURSE HASBEEN INSTALLED.SET FRAME ON FULL MORTAR BED & SEALJOINT (VERIFY WITH MUNICIPALITY /ENGINEER USE OF RUBBER GRADE RINGSW/ MASTIC IN PLACE OF FULL MORTAR BED)ADJUST TO GRADE (10" MAX.) WITH PRECASTRISER SECTIONS USING THE LEAST NUMBEROF RISERS THAT ARE COMMERCIALLYAVAILABLE. MASTIC SHOULD BE USED TO SEALBETWEEN CONCRETE RISERS. WHERE THEROAD HAS A SLOPE, ANGLED RUBBER GRADERINGS SHALL BE USED PER THEMANUFACTURER'S RECOMMENDATIONS.POLYPROPYLENE MANHOLESTEPS @ 8" O.C.WATERTIGHT JOINTS USINGMASTIC BUTYL JOINTCOAT EXTERIOR OF ENTIREMANHOLE WITH A WATERTIGHTSEALANT (2 COATS)CAST IN PLACE FLEXIBLE MH SLEEVES ORAPPROVED EQUAL (TYP. ALL PIPES)USE 3' (MAX.) STUBS AT ALLMANHOLE PIPE CONNECTIONSCLASS A CONCRETE BASE ORAPPROVED PRECASTCONCRETE BASE6" MIN. CRUSHEDSTONE BEDDING12" MIN.UNDISTURBED SOILOR ROCKCLASS B CONCRETESHELF AND INVERTCHANNELSWR-004 Typ MH1/26/21 DSM PRELIMINARY FINALN.T.S.WATER/SEWER CROSSINGREVISED 6/15/2015W-007W-007 Water-Sewer CrossingWATER MAINPROFILE VIEW18"MIN.18"MIN.GRAVITY SEWER ORFORCE MAIN (JOINTSTO BE ENCASED)GRAVITY SEWEROR FORCE MAINPLAN VIEWWATER MAINSEWER MAIN10' MIN.10' MIN.10' MIN.10' MIN.SINGLE 20' LENGTH OFWATER QUALITY PIPEENCASEMENT IF SEPARATIONIS BETWEEN 12" TO 18"THE GRAVITY SEWER or FORCEMAIN JOINTS SHALL BE CONCRETEENCASED WHEN LOCATED ABOVETHE WATER MAINREFERENCE:VT. WATER SUPPLY RULECHAPTER 21, APPENDIX A,SECTION 8.6NOTES:1. AT CROSSINGS, ONE FULL LENGTH OF WATER/STORM PIPE SHALL BE LOCATED SOBOTH JOINTS WILL BE AS FAR FROM THE WATER/STORM AS POSSIBLE.2. IF THE STORM MAIN IS OVER THE WATER MAIN, THE FIRST STORM PIPE JOINTS ONEACH SIDE OF THE WATER MAIN MUST BE CONCRETE ENCASED. SPECIALSTRUCTURAL SUPPORT FOR THE WATER AND STORM PIPES MAY BE REQUIRED.3. WHERE IT IS IMPOSSIBLE TO MAINTAIN THE 18" SEPARATION, THE STORM MATERIALSSHALL BE WATER MAIN PIPE OR EQUIVALENT AND SHALL BE PRESSURE TESTED TOWATER MAIN STANDARDS.4. WATER MAINS AND STORM LINES OR MANHOLES SHALL HAVE AT LEAST 5'HORIZONTAL SEPARATION. THIS DISTANCE SHALL BE MEASURED EDGE TO EDGE.N.T.S.WATER/STORM CROSSINGREVISED 12/23/2014W-007AW-007A Water-Storm CrossingL/2POINT OF CROSSINGJOINTMINIMUM 18" SEPARATIONBETWEEN OUTSIDE OFPIPESWATER ORSTORM LINEL/2L/2L/2WATER ORSTORM LINE3/01/21 DSM PER CITY COMMENTS\\Cea-pdc1\projects\AutoCADD Projects\2018\18232\1-CADD Files-\dwg\18232-Details and Spec.dwg, 3/9/2021 1:58:08 PM, gcarter C3.0LOCATION MAP1" = 2000'EROSIONCONTROL DETAILS& SPECIFICATIONSACEDSMDSMGACAS SHOWN18232SEP., 2020DONALD & LOISKERWIN234 BOUTIN ROADHINESBURG VERMONT 05403KERWINSUBDIVISION209 HIGHLAND TERRACE SOUTH BURLINGTON, VTPROJECTLOCATION116SO. BURLINGTONWILLISTON116E-001 EC SheetIntroductionThis project is subject to the terms and conditions of the authorizationfrom the State of Vermont to discharge construction related storm waterrunoff.Coverage under the State Construction General Permit 3-9020 isrequired for any construction activity that disturbs 1 or more acres ofland, or is part of a larger development plan that will disturb 1 or moreacres.This project has been deemed to qualify as a Low Risk Site which issubject to the erosion prevention and sediment control (EPSC)standards set for in the State of Vermont'sLow Risk Site Handbook for Erosion Prevention and SedimentControlThe following narrative and implementation requirements represent theminimum standard for which this site is required to be maintained asregulated by the State of Vermont.Any best management practices (BMP's) depicted on the project's EPSCSite plan which go beyond the Handbook requirements are consideredto be integral to the management of the site and represent componentsof the municipal EPSC approval for the project which shall beimplemented.The EPSC plan depicts one snap shot in time of the site. Allconstruction sites are fluid in their day to day exposures and risks as itrelates to minimizing sediment loss from the site. It is theresponsibility of the Contractor to implement the necessary BMP'sto comply with the Low Risk Handbook standards outlined on thissheet based on the interim site disturbance conditions which may ormay not be shown on the EPSC Site Plan.Specific BMP's which are critical to allowing the project to be considereda Low risk site include the items checked below:xLimit the amount of disturbed earth to two acres or less at any onetime.xThere shall be a maximum of 7 consecutive days of disturbed earthexposure in any location before temporary or final stabilization isimplemented.1. Mark Site BoundariesPurpose:Mark the site boundaries to identify the limits of construction. Delineatingyour site will help to limit the area of disturbance, preserve existingvegetation and limit erosion potential on the site.How to comply:Before beginning construction, walk the site boundaries and flag trees,post signs, or install orange safety fence. Fence is required on anyboundary within 50 feet of a stream, lake, pond or wetland, unless thearea is already developed (existing roads, buildings, etc.)2. Limit Disturbance AreaPurpose:Limit the amount of soil exposed at one time to reduce the potentialerosion on site.Requirements:The permitted disturbance area is specified on the site's writtenauthorization to discharge. Only the acreage listed on the authorizationform may be exposed at any given time.How to comply:Plan ahead and phase the construction activities to ensure that no morethan the permitted acreage is disturbed at one time. Be sure to properlystabilize exposed soil with seed and mulch or erosion control mattingbefore beginning work in a new section of the site.3. Stabilize Construction EntrancePurpose:A stabilized construction entrance helps remove mud from vehiclewheels to prevent tracking onto streets.Requirements:If there will be any vehicle traffic off of the construction site, you mustinstall a stabilized construction entrance before construction begins.How to installRock Size: Use a mix of 1 to 4 inch stoneDepth: 8 inches minimumWidth: 12 feet minimumLength: 40 feet minimum (or length of driveway, if shorter)Geotextile: Place filter cloth under entire gravel bedMaintenance:Redress with clean stone as required to keep sediment from trackingonto the street.4. Install Silt FencePurpose:Silt fences intercept runoff and allow suspended sediment to settle out.Requirements:Silt fence must be installed:xon the downhill side of the construction activitiesxbetween any ditch, swale, storm sewer inlet, or waters of the Stateand the disturbed soil* Hay bales must not be used as sediment barriers due to theirtendency to degrade and fall apart.Where to place:xPlace silt fence on the downhill edge of bare soil. At the bottom ofslopes, place fence 10 feet downhill from the end of the slope (ifspace is available).xEnsure the silt fence catches all runoff from bare soil.xMaximum drainage area is ¼ acre for 100 feet of silt fence.xInstall silt fence across the slope (not up and down hills!)xInstall multiple rows of silt fence on long hills to break up flow.xDo not install silt fence across ditches, channels, or streams or instream buffers.How to install silt fence:xDig a trench 6 inches deep across the slopexUnroll silt fence along the trenchxEnsure stakes are on the downhill side of the fencexJoin fencing by rolling the end stakes togetherxDrive stakes in against downhill side of trenchxDrive stakes until 16 inches of fabric is in trenchxPush fabric into trench; spread along bottomxFill trench with soil and pack downMaintenance:xRemove accumulated sediment before it is halfway up the fence.xEnsure that silt fence is trenched in ground and there are no gaps.5. Divert Upland RunoffPurpose:Diversion berms intercept runoff from above the construction site anddirect it around the disturbed area. This prevents clean water frombecoming muddied with soil from the construction site.Requirements:If storm water runs onto your site from upslope areas and your sitemeets the following two conditions, you must install a diversion bermbefore disturbing any soil.1. You plan to have one or more acres of soil exposed at any one time(excluding roads).2. Average slope of the disturbed area is 20% or steeper.How to install:1. Compact the berm with a shovel or earth-moving equipment.2. Seed and mulch berm or cover with erosion control mattingimmediately after installation.3. Stabilize the flow channel with seed and straw mulch or erosioncontrol matting. Line the channel with 4 inch stone if the channelslope is greater than 20%.4. Ensure the berm drains to an outlet stabilized with riprap. Ensure thatthere is no erosion at the outlet.5. The diversion berm shall remain in place until the disturbed areas arecompletely stabilized.6. Slow Down Channelized RunoffPurpose:Stone check dams reduce erosion in drainage channels by slowingdown the storm water flow.Requirements:If there is a concentrated flow (e.g. in a ditch or channel) of storm wateron your site, then you must install stone check dams. Hay bales mustnot be used as check dams.How to install:Height: No greater than 2 feet. Center of dam should be 9 inches lowerthan the side elevationSide slopes: 2:1 or flatterStone size: Use a mixture of 2 to 9 inch stoneWidth: Dams should span the width of the channel and extend up thesides of the banksSpacing: Space the dams so that the bottom (toe) of the upstream damis at the elevation of the top (crest) of the downstream dam. Thisspacing is equal to the height of the check dam divided by the channelslope.Spacing (in feet) = Height of check dam (in feet)/Slope in channel (ft/ft)Maintenance:Remove sediment accumulated behind the dam as needed to allowchannel to drain through the stone check dam and prevent large flowsfrom carrying sediment over the dam. If significant erosion occursbetween check dams, a liner of stone should be installed.7. Construct Permanent ControlsPurpose:Permanent storm water treatment practices are constructed to maintainwater quality, ensure groundwater flows, and prevent downstreamflooding. Practices include detention ponds and wetlands, infiltrationbasins, and storm water filters.Requirements:If the total impervious* area on your site, or within the common plan ofdevelopment, will be 1 or more acres, you must apply for a State Stormwater Discharge Permit and construct permanent storm water treatmentpractices on your site. These practices must be installed before theconstruction of any impervious surfaces.How to comply:Contact the Vermont Storm water Program and follow the requirementsin the Vermont Storm water Management Manual. The Storm waterManagement Manual is available at:www.vtwaterquality.org/stormwater.htm*An impervious surface is a manmade surface, including, butnot limited to, paved and unpaved roads, parking areas, roofs,driveways, and walkways, from which precipitation runs off ratherthan infiltrates.8. Stabilize Exposed SoilPurpose:Seeding and mulching, applying erosion control matting, andhydroseeding are all methods to stabilize exposed soil. Mulches andmatting protect the soil surface while grass is establishing.Requirements:All areas of disturbance must have temporary or permanent stabilizationwithin 7, 14, or 21 days of initial disturbance, as stated in the projectauthorization. After this time, any disturbance in the area must bestabilized at the end of each work day.The following exceptions apply:xStabilization is not required if earthwork is to continue in the areawithin the next 24 hours and there is no precipitation forecast forthe next 24 hours.xStabilization is not required if the work is occurring in aself-contained excavation (i.e. no outlet) with a depth of 2 feet orgreater (e.g. house foundation excavation, utility trenches).All areas of disturbance must have permanent stabilization within 48hours of reaching final grade.How to comply:Prepare bare soil for seeding by grading the top 3 to 6 inches of soil andremoving any large rocks or debris.Seeding Rates for Temporary StabilizationApril 15 - Sept. 15 --- Ryegrass (annual or perennial: 20 lbs/acre)Sept. 15 - April 15 --- Winter rye: 120 lbs/acreSeeding Rates for Final Stabilization:ChooseMulching RatesApril 15 - Sept.15 -- Hay or Straw: 1 inch deep (1-2 bales/1000 s.f.)Sept.15 - April 15 -- Hay or Straw: 2 in. deep (2-4 bales/1000 s.f.)Erosion Control MattingAs per manufacturer's instructionsHydroseedAs per manufacturer's instructions9. Winter StabilizationPurpose:Managing construction sites to minimize erosion and prevent sedimentloading of waters is a year-round challenge. In Vermont, this challengebecomes even greater during the late fall, winter, and early springmonths.'Winter construction' as discussed here, describes the period betweenOctober 15 and April 15, when erosion prevention and sediment controlis significantly more difficult.Rains in late fall, thaws throughout the winter, and spring melt and rainscan produce significant flows over frozen and saturated ground, greatlyincreasing the potential for erosion.Requirements for Winter Shutdown:For those projects that will complete earth disturbance activities prior tothe winter period (October 15), the following requirements must beadhered to:1. For areas to be stabilized by vegetation, seeding shall be completedno later than September 15 to ensure adequate growth and cover.2. If seeding is not completed by September 15, additionalnon-vegetative protection must be used to stabilize the site for thewinter period. This includes use of Erosion Control Matting or nettingof a heavy mulch layer. Seeding with winter rye is recommended toallow for early germination during wet spring conditions.3. Where mulch is specified, apply roughly 2 inches with an 80-90%cover. Mulch should be tracked in or stabilized with netting in openareas vulnerable to wind.Requirements for Winter ConstructionIf construction activities involving earth disturbance continue pastOctober 15 or begin before April 15, the following requirements must beadhered to:1. Enlarged access points, stabilized to provide for snow stockpiling.2. Limits of disturbance moved or replaced to reflect boundary of winterwork.3. A snow management plan prepared with adequate storage andcontrol of meltwater, requiring cleared snow to be stored down slopeof all areas of disturbance and out of storm water treatment structures.4. A minimum 25 foot buffer shall be maintained from perimeter controlssuch as silt fence.5. In areas of disturbance that drain to a water body within 100 feet, tworows of silt fence must be installed along the contour.6. Drainage structures must be kept open and free of snow and icedams.7. Silt fence and other practices requiring earth disturbance must beinstalled ahead of frozen ground.8. Mulch used for temporary stabilization must be applied at double thestandard rate, or a minimum of 3 inches with an 80-90% cover.9. To ensure cover of disturbed soil in advance of a melt event, areas ofdisturbed soil must be stabilized at the end of each work day, with thefollowing exceptions:x If no precipitation within 24 hours is forecast and work will resumein the same disturbed area within 24 hours, daily stabilization is notnecessary.x Disturbed areas that collect and retain runoff, such as housefoundations or open utility trenches.10. Prior to stabilization, snow or ice must be removed to less than 1inch thickness.11. Use stone to stabilize areas such as the perimeter of buildingsunder construction or where construction vehicle traffic is anticipated.Stone paths should be 10 to 20 feet wide to accommodate vehiculartraffic.10. Stabilize Soil at Final GradePurpose:Stabilizing the site with seed and mulch or erosion control matting whenit reaches final grade is the best way to prevent erosion whileconstruction continues.Requirements:Within 48 hours of final grading, the exposed soil must be seeded andmulched or covered with erosion control matting.How to comply:Bring the site or sections of the site to final grade as soon as possibleafter construction is completed. This will reduce the need for additionalsediment and erosion control measures and will reduce the totaldisturbed area.For seeding and mulching rates, follow the specifications under Rule 8,Stabilizing Exposed Soil.11. Dewatering ActivitiesPurpose:Treat water pumped from dewatering activities so that it is clear whenleaving the construction site.Requirements:Water from dewatering activities that flows off of the construction sitemust be clear. Water must not be pumped into storm sewers, lakes, orwetlands unless the water is clear.How to comply:Using sock filters or sediment filter bags on dewatering discharge hosesor pipes, discharge water into silt fence enclosures installed in vegetatedareas away from waterways. Remove accumulated sediment after thewater has dispersed and stabilize the area with seed and mulch.12. Inspect Your SitePurpose:Perform site inspections to ensure that all sediment and erosion controlpractices are functioning properly. Regular inspections and maintenanceof practices will help to reduce costs and protect water quality.Requirements:Inspect the site at least once every 7 days and after every rainfall orsnow melt that results in a discharge from the site. Perform maintenanceto ensure that practices are functioning according to the specificationsoutlined in this handbook.In the event of a noticeable sediment discharge from the constructionsite, you must take immediate action to inspect and maintain existingerosion prevention and sediment control practices. Any visiblydiscolored storm water runoff to waters of the State must be reported.Forms for reporting discharges are available at:www.vtwaterquality.org/stormwater.htmN.T.S.CONSTRUCTION FENCE DETAILREVISED 08/01/2014E-002E-002 Constr FenceWOOD POST30"18"EXISTING GRADENATIVE MATERIALPLASTIC ORANGECONSTRUCTION FENCEREVISED 08/01/2014E-004E-004 Constr. Ent20' (6m) RROADWAYAASTABILIZED CONSTRUCTION ENTRANCEN.T.S.12'. MIN.50' MIN.SECTION A-ADIVERSION RIDGE REQUIREDWHERE GRADE EXCEEDS 2%ROADWAY2% OR GREATERSPILLWAYFILTER FABRICSANDBAGS ORCONTINUOUS BERM OFEQUIVALENT HEIGHTDIVERSION RIDGESUPPLY WATER TO WASHWHEELS IF NECESSARY2"-3" (50-75mm) COURSEAGGREGATE MIN. 8"(150mm) THICKPLAN VIEWNOTES:1. THE ENTRANCE SHALL BE MAINTAINED IN A CONDITION THAT WILL PREVENTTRACKING OR FLOWING OF SEDIMENT ONTO PUBLIC RIGHT-OF-WAYS. THIS MAYREQUIRE TOP DRESSING, REPAIR AND/OR CLEAN OUT OF ANY MEASURES USED TOTRAP SEDIMENT.2. WHEN NECESSARY, WHEELS SHALL BE CLEANED PRIOR TO ENTRANCE ONTO PUBLICRIGHT-OF-WAY.3. WHEN WASHING IS REQUIRED, IT SHALL BE DONE ON AN AREA STABILIZED WITHCRUSHED STONE THAT DRAINS INTO AN APPROVED SEDIMENT TRAP OR SEDIMENTBASIN.NOTE:USE SANDBAGS OR OTHERAPPROVED METHODS TOCHANNELIZE RUNOFF TOBASIN AS REQUIREDREVISED 08/01/2014E-003E-003 Silt FenceN.T.S.SILT FENCE DETAILNOTES:1. INSTALL MIRIFI ENVIROFENCE, OR APPROVED EQUAL OR AS DETAILED HEREIN.2. INSTALL SILT FENCES AT TOES OF ALL UNPROTECTED SLOPES AND AS PARALLEL TOCONTOURS AS POSSIBLE. THIS INCLUDES ALL FILLED OR UNPROTECTED SLOPESCREATED DURING CONSTRUCTION, NOT NECESSARILY REFLECTED ON THE FINALPLANS. CURVE THE ENDS OF THE FENCE UP INTO THE SLOPE. REMOVE SEDIMENTWHEN ACCUMULATED TO HALF THE HEIGHT OF THE FENCE. SILT FENCES ARE TO BEMAINTAINED UNTIL SLOPES ARE STABILIZED.3. WHEN TWO SECTIONS OF FILTER CLOTH ADJOIN EACH OTHER, THEY SHALL BEOVERLAPPED BY 6", FOLDED AND STAPLED.10'10'2.5'METAL POST4 x 4 WOODPOST SPACING212 X 212 WOOD36" MIN.12" MIN.POST2"8"FILTER FABRIC TO BEMIRAFI 100X OR APPROVEDEQUALFILTER FABRIC TO BECLIPPED, BACKFILLED ANDTAMPED 8" BELOW GRADESTEEL OR WOOD STAKES(SEE CHART AT RIGHT)REVISED 08/01/2014E-005E-005 StockpileTEMPORARY STOCKPILE DETAILN.T.S.TEMPORARY SEEDING & MULCHOR NETTINGSILT FENCE OR HAYBALES INSTALLED ONDOWN GRADIENT SIDEREVISED 08/01/2014E-007E-007 Infilt SectSILT FENCE CONSTRUCTION DETAILN.T.S.2. ATTACH SILT FENCEAND EXTEND IT TOTHE TRENCH.3. STAPLE THE SILTFENCING TO THEEND POSTS.BACKFILL TRENCH.1. SET POSTS AND EXCAVATE A 4"X8" TRENCH, SET POST DOWNSLOPE.ANGLE 10°UPSLOPE FORSTABILITY ANDSELF CLEANINGPOSTSSILTFENCE100°12"MIN.8"COMPACTEDBACKFILL9/2/20 DSM SKETCH1/26/21 DSM PRELIMINARY FINAL\\Cea-pdc1\projects\AutoCADD Projects\2018\18232\1-CADD Files-\dwg\18232-Details and Spec.dwg, 1/26/2021 6:10:56 PM, gcarter C3.1LOCATION MAP1" = 2000'EROSIONCONTROL DETAILS& SPECIFICATIONSACEDSMDSMGACAS SHOWN18232SEP., 2020DONALD & LOISKERWIN234 BOUTIN ROADHINESBURG VERMONT 05403KERWINSUBDIVISION209 HIGHLAND TERRACE SOUTH BURLINGTON, VTPROJECTLOCATION116SO. BURLINGTONWILLISTON116N.T.S.FOR PERIMETER CONTROLREVISED 12/19/2014E-010E-010 Silt Fence Perimeter ControlCorrect - Install J-hooks0.3 ACREDiscreet segments of silt fence,installed with J-hooks or `smiles' willbe much more effective.1 ACREIncorrect - Do Not layout "perimetercontrol" silt fences along property lines.All sediment laden runoff will concentrateand overwhelm the system.0.3 ACRE0.3 ACRESILT FENCE PLACEMENTN.T.S.STRAW ANCHORINGREVISED 12/19/2014E-012E-012 Straw AnchoringNOTES:1. ROUGHEN SLOPE WITH BULLDOZER.2. BROADCAST SEED AND FERTILIZER.3. SPREAD STRAW MULCH 3" (212 TONS PER ACRE)4. PUNCH STRAW MULCH INTO SLOPE BY RUNNING BULLDOZERUP AND DOWN SLOPE.'TRACKING' WITH MACHINERY ON SANDYSOIL PROVIDES ROUGHENING WITHOUTUNDUE COMPACTION.N.T.S.TYPICAL INSTALLATIONREVISED 12/19/2014E-011E-011 Grass Lined ChannelINTERMITTENT CHECK SLOTLONGITUDINAL ANCHOR TRENCHGRASS-LINED CHANNELTYPICAL INSTALLATIONWITH EROSION CONTROLBLANKETS OR TURFREINFORCEMENT MATSPREPARE SOIL AND APPLYSEED BEFORE INSTALLINGBLANKETS, MATS OR OTHERTEMPORARY CHANNEL LINERSYSTEMEXCAVATE CHANNELTO DESIGN GRADEAND CROSS SECTONNOTES:1. DESIGN VELOCITIES EXCEEDING 2 FT./SEC/ REQUIRE TEMPORARY BLANKETS, MATS ORSIMILAR LINERS TO PROTECT SEED AND SOIL UNTIL VEGETATION BECOMES ESTABLISHED.2. GRASS-LINED CHANNELS WITH DESIGN VELOCITIES EXCEEDING 6 FT./SEC. SHOULDINCLUDE TURF REINFORCEMENT MATS.6"6"6"DESIGNDEPTHOVERLAP 6" MINIMUMOVERCUT CHANNEL 2" TOALLOW BULKING DURINGSEEDBED PREPARATIONLONGITUDINALANCHOR TRENCHSHINGLE-LAP SPLICED ENDS OR BEGIN NEWROLL IN AN INTERMITTENT CHECK SLOTBERMISOMETRIC VIEWTYPICAL SLOPE SOIL STABILIZATIONSTAPLESREINFORCEMENT MATSEROSION BLANKETS & TURF12"4'N.T.S.SLOPE INSTALLATIONE-009E-009 Slope Erosion BlanketsNOTES:1. SLOPE SURFACE SHALL BE FREE OF ROCKS, CLODS, STICKSAND GRASS. MATS/BLANKETS SHALL HAVE GOOD SOILCONTACT.2. APPLY PERMANENT SEEDING BEFORE PLACING BLANKETS.3. LAY BLANKETS LOOSELY AND STAKE OR STAPLE TO MAINTAINDIRECT CONTACT WITH THE SOIL. DO NOT STRETCH.MATS/BLANKETS SHOULDBE INSTALLED VERTICALLYDOWNSLOPE.TAMP SOIL OVER MAT/BLANKETMIN. 4"OVERLAP6"112"112"12"REVISED 08/01/2014REVISED 08/01/2014E-006E-006 Check DamSTONE CHECK DAM STRUCTUREN.T.S. 30 36 41 50 66 100 15 18 20 25 33 48MAXIMUM WATER DEPTH OVER ROCK (mm) 0.35 0.30 0.25 0.20 0.15 0.1015075D-50OF ROCK(MM)DOWNSTREAM FLOWLINE SLOPE OF STRUCTURE (m/m)60cm(2 ft. MAX.)15cm TO 45cm(0.5 TO 1.5 ft.)DIFFERENCE75mm (3 in.) MIN.COARSE ROCK0.35 m/m OR FLATTERFLOW LINE SLOPEROCK SET IN 10cm (4 in.MIN.) TRENCHMINIMUM DEPTH OF COARSEROCK PLACED IN CHANNELFLOW LINE IS 15cm (0.5 ft.)SIDE VIEWFRONT VIEWEND POINTS 'A' MUST BE HIGHERTHAN THE FLOW LINE POINT 'B'AABABPLACE DOWNSTREAM STRUCTURESUCH THAT POINT 'B' ISAPPROXIMATELY LEVEL WITH THELOWEST GROUND ELEVATION OFTHE UPSTREAM STRUCTURE9/2/20 DSM SKETCH1/26/21 DSM PRELIMINARY FINAL\\Cea-pdc1\projects\AutoCADD Projects\2018\18232\1-CADD Files-\dwg\18232-Details and Spec.dwg, 1/26/2021 6:09:55 PM, gcarter Lot Existing 0.875 ± acres Existing 38,115 ± square feet Proposed 0.275 ± acres Proposed 11,979 ± square feet Proposed 0.275 ± acres Proposed 11,979 ± square feet Proposed 0.275 ± acres Proposed 11,979 ± square feet Lot 2 Front Yard Coverages Existing - ± square feet 0% - ± square feet 0% N/A Residential Proposed 1,810 ± square feet 15% 3,190 ± square feet 27% N/A Residential Lot 3 Front Yard Coverages Existing - ± square feet 0% - ± square feet 0% N/A Residential Proposed 1,810 ± square feet 15% 3,220 ± square feet 27% N/A Residential Lot 4 Front Yard Coverages Existing - ± square feet 0% - ± square feet 0% N/A Residential Proposed 1,810 ± square feet 15% 3,220 ± square feet 27% N/A Residential Building Coverage Overall Coverage Building Coverage Overall Coverage Building Coverage Overall Coverage Lot Size 2 2 3 4 3,300167.7Private WellsVermont Agency of Natural Resources2,500© Vermont Agency of Natural Resources127.01:WGS_1984_Web_Mercator_Auxiliary_SphereMeters127.00NOTESMap created using ANR's Natural Resources AtlasLEGEND64.00vermont.govDISCLAIMER: This map is for general reference only. Data layers that appear onthis map may or may not be accurate, current, or otherwise reliable. ANR andthe State of Vermont make no representations of any kind, including but notlimited to, the warranties of merchantability, or fitness for a particular use, norare any such warranties to be implied with respect to the data on this map.January 25, 2021THIS MAP IS NOT TO BE USED FOR NAVIGATION1" = 208 1cm = 25Ft. MetersPrivate WellsIncorrectly LocatedGPS LocatedScreen DigitizedE911 Address MatchedWelldriller/ClarionUnknown Location MethodParcels (standardized)RoadsInterstateUS Highway; 1State HighwayTown Highway (Class 1)Town Highway (Class 2,3)Town Highway (Class 4)State Forest TrailNational Forest TrailLegal TrailPrivate Road/DrivewayProposed RoadsStream/RiverStreamIntermittent StreamTown BoundaryProject LocationGPM 75GPM 50GPM 75GPM 10GPM 50GPM 60GPM 3GPM 6GPM 2Highland Terrace Area Wells Above: Looking into the existing Lot 2 southeast corner, Highland Terrace is on other side of vegetation. Below: Inside the existing Lot 2 parcel looking north, Highland Terrace off the photo to the right. Above: Photo along Highland Terrace looking north towards Dubois Dr, existing lot 2 on the left. Below: Photo along Highland Terrace looking south the bend in Highland Terrace, existing lot 2 on the right. Above: Looking into the existing Lot 2 northeast corner, Highland Terrace is on other side of vegetation. Below: Looking into existing Lot 2 to the east, Highland Terrace is on other side of vegetation. The buildings below depict the character of the buildings proposed to be constructed on lots 2, 3 and 4. MEMORANDUM To: Dave Marshall, Civil Engineering Associates Date: 7/1/2021 From: Dori Barton, Wetland Ecologist Re: Kerwin Subdivision, 209 Highland Terrace, South Burlington, Vermont Wetland Delineation and Classification: On June 18, 2021, I conducted a wetland delineation at the above referenced parcel. The approximately 1,742 square foot wetland has been determined to be Class 3 by Tina Heath from the Vermont Wetlands Program (via email dated 6/28/21) Wetland Function and Values: The wetland is characterized as a depression with emergent vegetation present. The main source of hydrology for the wetland is from a residential foundation drain. The wetland is not associated with a stream and does not have an outlet. The area 50’ around the wetland is generally characterized as managed residential lawn. Given the size and landscape position, the wetland lacks any significant wetland functions and values as defined by the Vermont Wetland Rules. Project Impacts: The proposed project will result in the filling of the small wetland on the property. The wetland and 50’ around it will be developed as residential space with dwelling units and managed lawn. Article 12.02 Section 3 (South Burlington Land Development Regulations) (a) The encroachment(s) will not adversely affect the ability of the property to carry or store flood waters adequately. (b) The encroachment(s) will not adversely affect the ability of the proposed stormwater treatment system to reduce sedimentation according to state standards. (c) The impact of the encroachment(s) on the specific wetland functions and values identified in the field delineation and wetland report is minimized and/or offset by appropriate landscaping, stormwater treatment, stream buffering, and/or other mitigation measures. The subject wetland is not significant for any of the 10 functions and values outlined in the Vermont Wetland Rules. The project will have no adverse impact on wetland function and value. The project has been designed to manage the flow from the residential underdrains by extending the foundation drain to discharge to a regraded swale adjacent to Highland Terrace. ! ! 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