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HomeMy WebLinkAbout07/24/2019 - James DeVellis Response to Jean Enright & Planning Board - 481 Sutton Street DeVellis Zrein Inc. PO Box 307 Foxboro,MA 02035 Tel. (508) 473-4114 Fax. 774-215-0631 www.deveffiszrcin.com July 24, 2019 Jean Enright, Planning Director Town of North Andover 120 Main Street North Andover, MA 01845 Re: North Andover Senior Center Response to Review Comments Dear Ms. Enright and Members of the Planning Board, This letter has been prepared in response to all of the review comments received to date from the initial filing of the above referenced project with the Planning Board. The following are our responses with the review comments shown in regular type and our responses in bold type. Accompanying these comments are revised Site Plans, supporting documents and Drainage Report all dated July 24, 2019. The one plan suggestion that was made during the initial Planning Board meeting and has been revised on the plan is to adjust the geometry of the exit drive onto Surry Drive to make it difficult to turn left. All of the comments and responses below do not require plan layout changes. COMMENTS RECEIVED FROM NORTH ANDOVER DPW JOHN J BORGESI,`PE DATED JUNE 27,2019 1. All water piping shall be cement lined ductile iron, Class 52. This note is now clarified on C-2,note 16 2. All hydrants shall be Clow Eddy, open left. This note is now clarified on C-2,note 16 3. It appears that the existing sewer service connection for the residential home onto Sutton Street is proposed to be reused for the new Senior Center building. This is not recommended and a new 6" PVC sewer service connection installed at a minimum of a 2% slope is recommended. This requirement is now noted on the C-2 at the connection. 4. The existing water and sewer service connections for the residential homes onto Sutton Street and Surrey Drive shall be terminated at the main lines in the streets. This requirement is now noted on the C-2 at the existing connection points. 5. The proposed drain pipe material shall be identified on Sheet C-2. In addition, there are sections of proposed drain pipe that do not have a size or pipe material identified. All pipe sizes and drain pipe material shall be identified on Sheet C-2.Proposed DMH-1 identifies a rim elevation of 164.6' and an invert elevation of 164.8'. This discrepancy shall be corrected. The proposed FES inverts shall be identified on Sheet C-2. North Andover Senior Center DeVellis Zrein,Inc. July 24,2019 On C-2, the drain piping is now noted as HDPE in the legend, the rim and invert elevation has been revised and the FES invert has been added. 6. It appears that the access drive to the Senior Center from the shared driveway is marked as a one way not allowing any exit from the Senior Center onto the shared driveway. This circulation pattern is not recommended and the ability to exit the site via either the shared driveway onto Sutton Street or Surrey Drive onto Sutton Street is recommended. In addition, due to the curve of Sutton Street there is increased site distance when exiting the site via the shared driveway onto Sutton Street. 7. The reasoning for the proposed traffic and circulation patterns will be explained to the Planning Board for consideration. Since there is proposed grading along the shared access driveway that extends onto the abutting Apartment Complex project area, site grading shall be coordinated with the Apartment Complex site construction. Agreed COMMENTS RECEIVED FROM HORSLEY WITTEN GROUP INC. JANET CARTER BERNARDO, PE DATED JULY 10, 2019 8. The Applicant has analyzed the existing and proposed stormwater discharge rates from the project site at the property boundaries. HW notes that there are some minor discrepancies between the pre- and post-development watershed boundaries of the 1 Surrey Drive application and the 505 Sutton Street application (review recently completed by HW on July 1, 2019). HW recommends that the watershed boundaries under existing and proposed conditions be coordinated between the two projects to the extent possible. The water shed boundaries have been revised as noted. 9. The Applicant will also be discharging a majority of the proposed flow towards the municipal drainage system on Surrey Drive. To verify that the outlet of the municipal system will not cause erosion in waters of the Commonwealth, HW recommends that the Applicant show the locations of the municipal drainage system on the plans, provide a narrative describing where the municipal system currently outlets and document that no erosion is currently occurring at the final discharge point. The existing conditions survey will be updated to include the Surrey Drive drainage system and a narration will be provided. 10. Standard 2 requires that stormwater management systems shall be designed so that post- development peak discharge rates do not exceed pre-development peak discharge rates. The Applicant has provided calculations for the 2-year, 10-year and 100-year, 24- hour events for pre-and post-development conditions. However, per the North Andover Stormwater Regulations, the 0.5-inch storm and the 25-year, 24-hour event calculations also need to be included. The drainage analysis has been updated to include the 0.5inch storm and the 25-Year event. 11. Also, the depths of rainfall used for each event shall be as described in the North Andover Stormwater Regulations under Section 7.2 B.b. Specifically noting that the 100-year rainfall amount is 8.6 inches over 24 hours. 2 North Andover Senior Center DeVellis Zrein,Inc. July 24,2019 The drainage analysis has been updated to handle the 8.6 inch over 24 hours storm event. 12. Per North Andover Stormwater Regulations Section 7.2 B.i, pervious lands onsite "shall be considered to be in good condition regardless of existing conditions existing at the time of computation". HW recommends that the Applicant update pervious cover to be in `Good' condition in the HydroCAD modeling calculations for pre- development conditions. The drainage analysis has been updated to include this requirement. 13. The Existing Watershed Map provided by the Applicant does not show topography extending to the south (e.g., into 19 Surrey Drive), HW is not able to confirm if there is any off-site drainage from adjacent properties currently being managed onsite. HW recommends that the Applicant confirm the drainage areas under existing conditions. The Watershed Map has been updated to include the off-site areas as noted. An additional site walk and evaluation of the abutting properties was performed to assure that abutting runoff is undertood. 14. The time of concentration (Tc) value utilized for the EX-1 drainage area was assumed to be 6 minutes. HW recommends that the Tc flow path be shown on the Existing Watershed Map and calculated, it appears that the lawn area may have a Tc value longer than 6 minutes. The Tc analysis has been reevaluated and revised as noted. 15. It is not clear from the Proposed Watershed Map how the Applicant delineated the subwatersheds or which portions are pervious or impervious. HW recommends that the Proposed Watershed Map include the proposed contours and shading or hatching of areas of impervious cover. Based on the information provided on the Layout and Materials Plan and Planting Plan, it appears that the amount of pervious area is closer to 0.3 acres as compared to the 0.4 acres provided in the HydroCAD modeling calculations. The Watershed Map has been updated to include the suggestion. 16. Under proposed conditions, the Applicant has indicated that the stormwater runoff from the proposed building roof will be collected via a pipe and directed to a rain garden system. HW recommends that the Applicant provide a detail of the roof leaders and means to overflow if the rain garden system backs up. A roof leader connection detail is being provided by the architectural team as part of the building plans and will be provided as requested. 17. The Applicant is showing the use of three rain gardens onsite: two to collect overland flow from the parking lot and another to manage roof runoff. For those collecting runoff overland, it is not clear how the water is being directed to the curb openings and into the rain garden. Also, there does not appear to be any pretreatment provided. HW recommends that the Applicant provide a plan-view detail for these rain gardens showing pretreatment as required by Standard 3 and the MSH, Volume 2, Chapter 2. For the rain garden collecting roof runoff, there are no invert elevations provided for the flared end sections. The eastern rain garden aside the building accepts only clean roof runoff. The southeastern rain garden is only collecting landscape overland flow from off site. The rain garden at the front of the building is only accepting a small portion of the front walkway and drop off area with little flow and a small forebay has been added to intercept the contributing flow through a curb 3 North Andover Senior Center DeVellis Zrein,Inc. July 24,2019 opening. A catch basin with a sump and hood will route any overflow. It is the opinion, respectfully, that the small size of these three rain gardens combined with the fact that all three are not necessary for stormwater peals mitigation or volume mitigation does not necessitate additional pretreatment. The FES inverts have been added. 18.The Applicant is proposing the use of a subsurface infiltration/detention system to manage a portion of the site. HW recommends that the Applicant clarify the following: The Applicant is using an exfiltration rate of 0.27 in/hr, which is consistent with a Hydrologic Soil Group (HSG) C soil. The test pit at the proposed subsurface system indicates that soils are of a sandy loam and sandy loam gravel, which are consistent with HSG B soils. As noted in the MSH, Volume 3, Chapter 1, Page 13, the Applicant should use the HSG group based on test pit data at the actual site in place of the NRCS data provided. The drainage analysis has been revised to use the test pit data as suggested. 19.The Applicant has not provided elevations of the 12-inch header pipe or the connecting pipes on the plan or in the detail. The outlet elevations of the subsurface system should be clearly labeled on the plans and details. The elevations have now been added to C-2 as noted. 20.The Applicant has indicated that the outlet invert of the 8-inch pipe (presumably between DMH 6 and DMH 7) is 158 as noted in the HydroCAD model. However, the outlet invert appears to be 157.6 on the site plan. The HydroCAD model should be revised to reflect the elevations proposed in the plans. The elevations have been revised on C-2 as noted. 21.The subsurface system detail provided on Sheet C-5 does not include information on minimum depth between ground and top of the proposed subsurface system or the proposed elevation at the bottom of the system, both which are required to verify the elevations used in the HydroCAD modeling. The elevation has been added to the detail on C-5 as noted. 22.The Applicant is proposing the use of Stormceptor STC 450i for four catch basins. However, there are no design calculations provided showing that this model has adequate capacity for the contributing drainage areas, including the water quality flow rate calculations. HW recommends that the Applicant provide these design calculations in its drainage report for each of the four proposed proprietary catch basins. The STC Stormceptor STC 450i is being reconsidered per a suggestion in another comment. The specific type of water quality unit will be discussed with the DPW as they will be maintaining and monitoring. Each water quality unit on C-2 is not noted as "80% TSS removal Unit" and further detail will be forthcoming. 23.The Applicant has conducted soil evaluations within each of the subsurface systems and has provided the soil logs in Appendix C of the drainage report. HW requests that the surface elevations of the test pits within the infiltration systems be added to the test logs. The surface elevations have been added to the test pit logs as suggested. 24.HW recommends that the Applicant verify that it is providing adequate separation to groundwater 4 North Andover Senior Center DeVellis Zrein,Inc. July 24,2019 from the bottom of the stone. Furthermore, it is not clear why the Applicant has chosen a lower infiltration rate than the rate associated with the soil type documented in the test pits. Separation between groundwater and bottom of system has been added to the detail and surface elevations added to the logs. Test pit data has been incorporated into the design per comment above. 25.Standard 3 requires that the annual recharge from post-development shall approximate annual recharge from pre-development conditions. In Appendix B of the Drainage Report, the Applicant has provided calculations to address recharge as required by the MSH and Section 7.2 C of the North Andover Stormwater Regulations. HW recommends that the Applicant use the total impervious area within the site under post-development conditions, not only the increase in total impervious area. The drainage calculations have been revised as noted. 26.The Applicant has not provided the draw down calculations for the subsurface system. If the subsurface practice is intended for infiltration, the proposed system must be able to drain fully within 72 hours as required by Standard 3. HW recommends that the Applicant provide the required calculations and verify whether the system will be able to drain within 72 hours. The drainage calculations have been revised to include this requirement as noted. 27.Under the MSH Volume 3, Chapter 1, page 27, the Applicant is required to direct no less than 65% of the site's impervious cover to the practices intended to infiltrate the required recharge volume. Based on the Applicant's HydroCAD modeling reports, it appears that of the 1 acre of impervious area proposed onsite, 0.4 acres is directed to the proposed subsurface infiltration/detention system while the remaining 0.6 acres will drain directly to Surrey Drive and the municipal system. HW recommends that the Applicant adjust the required recharge volume as noted or direct more runoff to infiltration systems. The drainage design has been modified to meet this requirement. 28.Standard 4 requires that the stormwater system be designed to remove 80% Total Suspended Solids (TSS) and to treat 0.5-inch of volume from the impervious area for water quality. TSS removal calculations are provided in Appendix B of the Drainage Report include the use of street sweeping for TSS removal credit. In the MSH, Volume 2, Chapter 1, guidance states that a removal rate of 5% requires quarterly cleaning using one of three types of sweepers. However, in the Applicant's Operation and Maintenance Plan on Page 28 of the Drainage Report, the Applicant suggests cleaning on a semiannual basis. The report has been revised to require quarterly sweeping. 29.In addition, the Applicant states that hand sweeping and hand held leaf blowers can be an alternative to street sweeping. HW recommends that the Applicant discuss with the Town the recommended O&M procedures and confirm whether a street sweeping credit is applicable for TSS reductions. The reference to leaf blowing was intended for the patio areas. It has been removed. 30.The TSS calculations provide an assumed TSS reduction for the proposed proprietary devices (Stormceptor STC 450i). HW recommends that the Applicant provide supporting calculations from the manufacturer to ensure that the TSS reduction is adequate to meet Standard 4. Furthermore, MassDEP has provided guidance stating that when the STC450I is utilized as an inlet catch basin only 25% TSS 5 North Andover Senior Center DeVellis Zrein,Inc. July 24,2019 removal is accepted practice. HW recommends that the Applicant revisit the proposed stormwater treatment practices. Per comment above, the STC Stormceptor STC 450i is being reconsidered per a suggestion in another comment. The specific type of water quality unit will be discussed with the DPW as they will be maintaining and monitoring. Each water quality unit on C-2 is not noted as "80% TSS removal Unit" and further detail will be forthcoming. 31.The Applicant has provided TSS reduction for one treatment train (for subwatershed PR-1B), but has not provided a calculation for subwatershed PR-IA. HW recommends that the Applicant provide the TSS calculations for the catchment areas which include driveways and parking areas. The subcatchment area PR-1A has been analyzed and is included in the revised drainage report. 32.As noted above in comment 2a, HW recommends that the Applicant provide the analysis for the 0.5 inch storm as required under the North Andover Stormwater Regulations under Section 7.2B.b. The analysis for the 0.5-inch has been included in the revised drainage report. 33.Standard 5 is related to projects with a Land Use of Higher Potential Pollutant Loads (LUHPPL). The proposed development is not considered a LUHPPL therefore, Standard 5 is not applicable to this project. Acknowledged 34.Standard 6 is related to projects with stormwater discharging into a critical area, a Zone II or an Interim Wellhead Protection Area of a public water supply. The proposed development is not within a critical area, Zone 11 or an IWPA area and therefore Standard 6 is not applicable to this project. Acknowledged 35. Standard 7 is related to projects considered Redevelopment. The proposed development is considered a new development with an increase of impervious area, therefore Standard 7 is not applicable. Accepted. 36. Standard 8 requires a plan to control construction related impacts including erosion, sedimentation or other pollutant sources. On Sheet C-1, the Applicant appears to be showing silt soxx placed at the limit of work on the north west and a majority of the south side of the limit of work, with the exception of the limit of work located within the 505 Sutton Street Development. A detail is provided on Sheet C-4. HW recommends that the Applicant clarify in the legend the different line types shown for limit of work and limit of work with silt soxx. A limit of disturbance and silt soxx notation has been added to C-l. The construction sequencing involving demolition, site prep and project sequencing has not been established due to many factors. As such, the notation indicates that this coordination will need to take place. 37.The Applicant mentions tree protection and silt fence in the O&M plan on page 30; however, these sediment and erosion control measures are not shown on the plans. HW recommends that the Applicant confirm the location of these items on the plans. The silt fence has been changed to silt soxx on the plan. This has been modified in revised 6 North Andover Senior Center DeVellis Zrein,Inc. July 24,2019 the drainage report. 38.In the Drainage Report, under Section 5, the Applicant states that in regard to Standard 8, additional coordination is necessary to determine the sediment and erosion control measures with the adjacent development, 505 Sutton Street. Also, in the O&M plan on page 30 the Applicant states that during construction the contractor shall present a plan for vehicle entrances and washout areas. HW recommends that the Applicant provide an erosion and sediment control plan as outlined in the North Andover Stormwater Regulations under Section 8.1. The plan should include, if applicable, phasing of work with the 505 Sutton Street development, particularly at the shared limit of work, area. HW recommends that the plan address: materials and methods for protecting the municipal drainage system on Surrey Drive, protecting trees to remain in the right-of-way on Surrey Drive and Sutton Street, locations and details for construction entrances and washout areas, locations and details for sediment/material stockpiles, dust control and other items as required by this standard. The coordination of phasing, construction entrances and responsibilities of the various demo and site prep are not known. A condition to have a plan prepared when this information is known is reasonable and expected. 39. Standard 9 requires a long-term operation and maintenance plan shall be developed and implemented to ensure that stormwater management systems function as designed. In the O&M Plan provided on page 28 of the Drainage Report, the Applicant refers to the manufacturer's specifications for cleaning, but does not reference the attachment. When the TSS removal structure is determined with the DPW, the manufacture's data sheets will be provided with maintenance requirements. 40.Further, the Applicant states that the `water quality units will be cleaned during the same schedule as the catch basins'. HW recommends that the Applicant clearly state the frequency of cleaning as required by the manufacturer's specifications or recommendations. Also, the Applicant should specify what equipment is required for cleaning these units. The manufacturer states that maintenance is performed with a standard vacuum truck, whereas typical catch basin cleaning can be done with clamshell buckets. When the TSS removal structure is determined with the DPW, the manufacture's data sheets will be provided with maintenance requirements. 41.The Applicant does not specify the frequency for inspection and/or maintenance for the proposed rain gardens. Further, many of the maintenance activities outlined in the MSH, Volume 2, Chapter 2 for rain gardens and bioretention areas are not discussed here, such as vegetation management or the repair of eroded areas. HW recommends that the Applicant clarify the O&M procedures for rain gardens. The O&M requirements will be coordinated with the town and included within a separate O&M manual. 42.The Applicant has outlined the O&M for the pervious patio pavers. The pavers are not shown on the plans. The O&M states that that a leaf blower be used at least twice a year for cleaning of debris. HW recommends that the Applicant also address the activities and equipment potentially required if there is ponding, weeding or a covering of the paver joints. The O&M requirements will be coordinated with the town and included within a separate O&M manual. 7 North Andover Senior Center DeVellis Zrein,Inc. July 24,2019 43.The Applicant states that the subsurface detention/infiltration system can be accessed by the manholes at the corner of the system. However, these manholes are not within or in-line with the system for proper jetting or vacuuming. HW recommends that clean out ports for the proposed subsurface system should be included, both in the plan and on the detail, with appropriate labels. Also, the Applicant should also outline the timeframe for inspections and cleanouts in the O&M Plan. Additional detail has been added to the plan for the infiltration system. 44.The Applicant has provided a long-term O&M Plan in the Drainage Report. The O&M Plan should be a standalone document and include a simple sketch to clearly indicate the location of all stormwater practices to be inspected as well as locations for snow storage. HW recommends that the Applicant include a simple sketch that will be provided to the property owner. The Applicant has not provided an inspection and maintenance schedule with routine and non-routine tasks to be performed of the systems as required by Section 9.1A of the North Andover Stormwater Regulations. A separate O&M plan will be coordinated with the DPW as noted above and submitted. 45.HW recommends that the property owner sign the O&M Plan in accordance with the North Andover Stormwater Regulations. Standard 10 requires that an Illicit Discharge Compliance Statement be provided. The Applicant provided an Illicit Discharge Compliance Statement to be signed by the owner on page 19 of the Drainage Report. HW recommends that the illicit discharge statement be signed by the property owner prior to land disturbance. One property is owned by the town and one property is owned by the residential developer. This item will need to be clarified as to responsibilities prior to construction. 46.Miscellaneous Comments:HW has noted the following inconsistencies in the Checklist for Stormwater Report in comparing it to the Applicant's Drainage Report: The Applicant has not noted the method they are using to size the infiltration BMPs (page 23).The Applicant has stated that runoff from all impervious areas at the site are discharging to the infiltration BMP. However, only a portion of the site (subwatershed PR-IA)is draining to the proposed subsurface detention/infiltration system. This has been corrected as noted. 47.HW noted that some drainage pipe diameters and materials were not shown on the plan. HW recommends that the Applicant provide a drainpipe schedule and calculations showing that the pipes have adequate capacity to convey the proposed flows. Pipe calculations have now been provided in the report. 48.The Applicant should clearly identify the locations of seeding and provide callouts for proposed locations of trees, plants and shrubs, verifying that that all plants are native to Essex County. The Landscape Plan has been revised. 49.The drainage report and plans refer to `Surrey Street' in several locations. The Applicant should revise these documents to note `Surrey Drive' as shown on the existing conditions plan. The drainage report has been revised as noted. COMMENTS RECEIVED FROM NORTH ANDOVER POLICE DEPARTMENT DANIEL LANEN DATED JUNE 18 2019 8 North Andover Senior Center DeVellis Zrein,Inc. July 24,2019 50.The Police Department supports a common driveway on Sutton Street to eliminate the present condition of dual driveways. We advise that sight lines should be clear of any obstructions for entry and exit vehicles, the further the sight lines the better. Adequate parking should be supplied to avoid parking in the neighborhood streets The project traffic engineer under separate cover is addressing the traffic study(ies). The reasoning for the proposed traffic and circulation patterns will be explained to the Planning Board for consideration. 51.Project must meet requirements of MGL148,527CMR,NFPA 1 and NFPA 101. Agreed. 52.Project-specific site safety plan be implemented upon commencement of construction activities in accordance with 527CMR Ch.16 and NFPA241 Agreed. 53.Bi-directional amplifier/emergency responder communications system installed in accordance with 780CMR 916. Agreed. 54.Fire protection systems be installed in accordance with 780 CMR Ch9, MGL 148 26G and NFPA 13. Agreed. 55.Radio master box connected to North Andover Public Safety [NAPS] dispatch center via the North Andover FD radio box system be installed and connected to fire protection systems. The NAPS dispatch center will only monitor alarms. Any supervisory and/or trouble alarms will need to be monitored by an approved monitoring company in addition to the radio box connection in accordance with 527CMR and NFPA72. 56.A secured key access box will need to be installed in accordance with North Andover By-Law 69- 8.1 7. Agreed. 57.An elevator which is large enough to accommodate an EMS stretcher be installed in accordance with 780CMR. 8.A swept path analysis be performed of the site and parking areas to ensure FD apparatus has adequate access to the building in accordance with 527CMR Ch18. Agreed. 58.Because the Senior Center will be a town building, we will monitor the supervisor and trouble alarms through dispatch. Agreed. COMMENTS RECEIVED FROM TEC PETER F.'ELLISON,PE,DATED JULY 10,2019 59.The Applicant should label the locus map on the cover sheet as well as provide a north arrow for reference. The cover sheet locus map has been revised as noted. 9 North Andover Senior Center DeVellis Zrein,Inc. July 24,2019 60.If the Applicant is including signage, the location should be called out on the Layout and Materials Plan (C-1). Site signage is called out on C-1 61.TEC recommends that the Applicant provide a sewer pipe sizing calculation to confirm adequate capacity exists for the proposed building. Sewer calculations will be provided. 62.The Applicant should provide an appropriate scale and north arrow for sheet C-3, Planting Plan. C-3 has been revised as noted. 63.The Applicant should show trees/shrubs to be removed within the legend of sheet C-3, Planting Plan. Notation has been added to C-3 indicating on plan which trees along the perimeter are to be saved and a note that the trees along the ROW are to be specifically coordinated with the town. 64.The Applicant should include a zoning table on the Layout and Materials Plan (C-1). The zoning table is included on the cover sheet. If a duplicate table is needed, it can be added. 65.The Applicant should provide a parking table or parking schedule on the Layout and Materials Plans (C-1). A note has been added to C-1 indicating that there are 81 parking spaces provided and the application indicates that the planning Board and the Building Inspector will make the determination. This has been discussed at the Planning Board meeting. 66.The Applicant should consider adding lighting around the accessible parking area as well as the surrounding building walkways. Two additional light poles have been added as noted. The photometric plan will be updated. 67.The Applicant should consider adding crosswalk(s) and associated marking(s) on the drive aisle between the parking area and the front of the proposed building. This request is being evaluated in a manner that will not lose parking spaces. 68.The Applicant should realign the Cement Concrete Sidewalk Detail to include the topmost text fully on the details sheet C-4. Revised as noted. 69.The Applicant should provide dimensions for the proposed vertical granite curb construction detail on sheet C-4. Revised as noted. 70.The Applicant should designate snow storage areas on site, to be located in areas that will not promote runoff to abutting properties. Due to the tightness of the site, there are no large areas on site for snow storage. The DPW 10 North Andover Senior Center DeVellis Zrein,Inc. July 24,2019 will plow to the perimeter areas for small accumulations and will need to remove the snow from the lot during large accumulations. 71.The Applicant should designate an area for waste collection such as dumpsters for trash and recycling on site, if required. The site will be services with roll totes through the service area. A dumpster is not proposed. 72.The Applicant should coordinate with the Town of North Andover Fire Department to confirm drive aisles, buildings, utilities and amenities are all fire accessible. A turning template plan has been prepared. 73.TEC encourages the Applicant to coordinate directly with the abutting residential owners to design a"residential buffer zone" that is amenable to all parties. The residential buffer with landscaping and fencing has been presented to the abutters and specifically presented at the Planning Board. 74.The Applicant should review the proposed grading of the pavement area in the southeast corner of the site. It appears the 167 contour is drawn incorrectly, or stormwater may be directed back toward the proposed building. The 167 contour has been revised as noted. Thank you for your continued assistance. Sincerely, DEVELLIS ZREIN INC. a s J eVellis, P.E. Par n Copy: Project Team 11