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HomeMy WebLinkAbout2019-03-11-CONCOM-min 1 TOWN OF LEXINGTON, MASSACHUSETTS CONSERVATION COMMISSION MINUTES March 11, 2019 6:30pm Parker Room Town Office Building, 1625 Mass. Ave, Lexington, MA Commissioners Present: Phil Hamilton, Alex Dohan, David Langseth, Ruth Ladd, Kevin Beuttell and Dick Wolk Commissioners Absent: Duke Bitsko Others present: Karen Mullins, Conservation Administrator and Katie Luczai, Conservation Department Assistant 6:30pm Issue Order of Conditions: 10 Springdale Road DEP 201-1123 BL 1080 On a motion by Ms. Dohan and seconded by Mr. Wolk, the Commission voted 6-0 to issue the order of conditions for 10 Springdale Road. Issue Order of Conditions: 121 Marrett Road DEP 201-1124 BL 1081 On a motion by Mr. Wolk and seconded by Ms. Dohan, the Commission voted 6-0 to issue the order of conditions for 121 Marrett Road. Issue Order of Conditions: 29 Dawes Road DEP 201-1125 BL 1082 On a motion by Mr. Wolk and seconded by Ms. Dohan, the Commission voted 6-0 to issue the order of conditions for 29 Dawes Road. Request for Extension to Order of Conditions: 11 Saddle Club Road DEP 201-1024 BL 981 (from 4-19-2019 to 4-15-2020) On a motion by Mr. Wolk and seconded by Ms. Dohan, the Commission voted in favor to extend the order of conditions for 11 Saddle Club Road by one year. Request for Certificate of Compliance: 482 Bedford Street DEP 201-894 BL 853 The Commission will discuss at a later date. 2 Execute Trail License: 18 Bacon Street (M.23 P.25)permits public access across existing trail traversing private property to connect Dunback Meadow Conservation Area Mr. Charles Horning, the property owner at 18 Bacon Street,presented before the Commission. Mr. Horning ask that proper signage be installed and maintained by the Conservation Department. On a motion by Mr. Wolk and seconded by Ms. Ladd, the Commission voted 6-0 to approve the license. Approve Meeting Minutes: February 25, 2019 On a motion by Mr. Beuttell and seconded by Ms. Dohan, the Commission voted to approve the meeting minutes subject to final edits. Review site visit schedule for March 25 The Commission decided to postpone the site visits if snow cover prevented them from a sufficient inspection. 7pm Continued Public Meetings DET 19-4 RDA, Intersection of Massachusetts Avenue and Worthen Road Applicant: Town of Lexington Engineering Project: General improvements including sidewalk and roadway reconstruction, median modification and removal, drainage improvements, etc. On a motion by Ms. Ladd and seconded by Ms. Dohan, the Commission voted 6-0 to continue the public hearing until March 25, 2019, at the applicant's request. New Public Meetings/Hearings DET 19-10 RDA, 678 Lowell Street Applicant: Preetesh Shrivastava Project: Installation of a shed Mr. Preetesh Shrivastava presented before the Commission. Mr. Shrivastava stated that he will be installing a 16' by 14' shed which will sit on the paved driveway. On a motion by Mr. Beuttell and seconded by Ms. Ladd, the Commission issued a negative determination with conditions. 3 DET 19-11 RDA, 1040-1050 Waltham Street Applicant: Boston Gas Company d/b/a National Grid Project: Installation of two new gas service lines Ms. Dana Vestie of Tighe & Bond presented before the Commission o/b/o Boston Gas Company. Ms. Vestie stated that the work will be 160-140 feet from the existing main, there will be excavating of a trench that is 2 feet wide and 3 feet deep. The area will be restored in kind. There will be 138 feet of temporary disturbed feet. Ms. Vestie stated that there will be catch basins and silt sacks installed in nearby catch basins during the work. Mr. Langseth asked what size the trench will be in order to install the gas line. Ms. Vestie stated that the trench will be 2 feet wide and 3 feet deep. Mr. Langseth asked if the trenches will be left open during the construction period. Ms. Vestie stated that they will close the trenches at the end of the work day, clarifying that it is intended that it will be completed in one day. Mr. Langseth asked that it be added as a condition to ensure the closure of trenches at night during the work period, or, alternatively, an erosion control plan be developed. On a motion by Mr. Wolk and seconded by Mr. Beuttell, the Commission voted 6-0 to issue a negative determination with conditions. DEP 4 201-1127 BL 1084 ANRAD, 497 Concord Ave Applicant: Ohan Ozcan Project: Confirmation of wetland delineation Mr. Jason Lavoie presented before the Commission. Mr. Lavoie stated that Mr. Dave Burke delineated the wetland line for them. Mr. Lavoie stated that in total there are about 10,700 sq. feet of wetlands. There is an intermittent stream within the delineated wetlands. The 100 foot buffer zone encompasses about 60,000 sq. feet of the property. Mr. Langseth inquired about the delineation at the abutting property. Ms. Mullins stated that a wetland delineation was completed in 2003 at the Cotting School. The Chairman, Mr. Hamilton asked what resources were analyzed to determine the wetland boundary. 4 Mr. Lavoie confirmed that Mr. Burke used soil and vegetation to determine the wetland boundaries. The Commission and Mr. Lavoie decided to continue the hearing until a site visit can be conducted by the Commission. An abutter, Ms. Alyssa Goodman asked if water level calculations take into account the gravel parking lot on the abutting property. Mr. Hamilton stated that gravel and vegetation are taken into account when considering water management. Ms. Goodman inquired about pending matters regarding 497 Concord Avenue with the Planning Board. Ms. Mullins stated that the Conservation Department had issued a stop work order and submitted a comment letter to the Planning Board. An abutter located at 475 Concord Ave, Mr. Christopher Bing Manheart asked to see the greater wetland delineation across all abutting properties. Mr. Lavoie stated that they could submit a compiled wetland delineation map which includes the wetland delineation at the abutting property. On a motion by Ms. Dohan and seconded by Mr. Beuttell, the Commission voted 6-0 to continue the hearing at the applicant's request. 7:24pm DEP 4 201-1126 BL 1083 NOI, 6 Blinn Road Applicant: Lauren Dillon Project: Proposed raze and rebuild of a single family dwelling Ms. Molly Obendorf of Stamski and McNarry presented before the Commission the proposed raze and rebuild of a single family dwelling. The proposed project will reduce impervious area by about 1,000 sq. feet. There will be roof drywells to mitigate water runoff which will be directed to subsurface chambers. The driveway installed will be an impervious driveway. Chairman Hamilton read the engineering memo into the record. Mr. Beuttell asked how the wetland delineation was performed. Mr. Beuttell noted that the wetland data forms were not submitted and that they must comply with MassDEP guidelines as well as the town Bylaws. Ms. Obendorf stated that the wetland forms can be provided and reviewed. 5 Chairman Hamilton asked if the footprint of the house was closer than the existing footprint. Ms. Obendorf stated that the footprint will be closer to the wetland due to the screened porch. Chairman Hamilton clarified that the owners would be grandfathered into build a house in the existing footprint. Mr. Langseth inquired about the proposed driveway. Ms. Obendorf stated that the driveway will consist of pavers, layered accordingly. Mr. Langseth and Mr. Beuttell noted that the stones used for the infiltration systems including the subsurface infiltration chambers should be specified as washed. Mr. Wolk asked what the building setbacks were measured from. Ms. Obendorf stated that it was measured from the foundation. Mr. Wolk asked that it be measured and presented on the plans as from the eayse. Mr. Wolk asked what the sq. footage is of total impervious area on the proposed property. Ms. Obendorf did not know. Mr. Wolk asked how they plan to accommodate construction activity in the rear of the dwelling given the close proximity of the limit of work line. Ms. Obendorf stated that the construction activity can be done in the rear by hand. Mr. Wolk stated that it seems unrealistic to assume the construction activities and future residents will avoid intruding into the rear of the property. Ms. Ladd and Chairman Hamilton echoed similar feelings. Chairman Hamilton suggested that the deck be removed from the proposed dwelling. Ms. Obendorf will discuss possible alternatives with the applicant. Mr. Langseth suggested rather to resize the proposed dwelling. An abutter located at 4 Blinn, Mr. Steve Huntington stated that he has experienced tear downs in the neighborhood over time. Mr. Huntington explained his concerns about the grading of the proposed property and how that will affect his property. Mr. Huntington additionally expressed concerns about the possibility of failing drainage systems. 6 Ms. Obendorf stated that though the elevation of the lawn will increase that there will be less run off due to the proposed swale and water mitigation plan. An abutter located at 3 Blinn Road, Mr. Ron Stering asked how much the proposed dwelling will be increased by. Ms. Obendorf stated that the proposed dwelling will be increased by about 2 feet. Mr. Stering voiced similar concerns as Mr. Huntington. Mr. Stering stated that the street slopes downward causing the water runoff to come towards his property. An abutter located at 12 Hickory Street, Mr. Chris Kitnittell asked if more or less water will be flowing into the wetland. Ms. Obendorf stated that there will be less water be flowing into the wetland. Ms. Obendorf described the design and proposed mitigation measures. Mr. Stering asked, following the logic outlined by Ms. Obendorf, that by directing roof runoff to the sub catchment and proposed swale, would the water then be directed to the wetland. Ms. Obendorf confirmed that yes, the water will be directed to the wetland but is intended to remain on the wetland solely at 6 Blinn Road. Mr. Wolk asked what the maintenance plan was in regards to the proposed pervious driveway. Ms. Obendorf stated that the plan is to inspect once per year and accordingly vacuum or sweep the driveway in addition to minimizing salt use. Mr. Wolk asked what the plan was if the driveway becomes impervious. Mr. Beuttell asked if a basement was proposed and if so, is there a sump to mitigate for that. Ms. Obendorf stated that a basement is proposed and that it will be determined if a sump will be installed. Mr. Langseth asked for revised engineering calculations if a sump pump is added. Ms. Dohan suggested that the house be re-sized. On a motion by Mr. Wolk and seconded by Ms. Dohan, the Commission voted 6-0 to continue the hearing until March 25, 2019 at the applicant's request. Bpm DEP41023 BL4980 Amend OOC, 3 Fiske Road 7 Applicant: John and Loryann D'Agostino Project: Raze and rebuild of a single family dwelling Mr. Rob Bibbo presented before the Commission. Mr. Bibbo stated that the house as built is 7,000 sq. feet. The additional amount of impervious surface area is 530 sq. feet than originally approved due to construction of a patio. The Commission had requested that FENO markers be installed which are reflected in the plans submitted to the Commission. Part of the house will now be directed to a perforated pipe in regards to drainage. During construction additional excavation was completed into the buffer zone which is going to be restored to its original state. The applicant additionally included more information concerning the driveway. On a motion by Ms. Dohan and seconded by Mr. Langseth the Commission voted 6-0 to close the hearing. DEP 201-1120 BL 1076 NOI, 244 Wood Street Applicant: MIT Lincoln Labs Project: Proposed electrical building modifications within the 100 foot buffer zone On a motion by Mr. Dick and seconded by Mr. Beuttell, the Commission voted 6-0 to continue the hearing to March 25, 2019 at the applicant's request. DET 19-8 RDA, 33 Hayden Ave Applicant: Ken Chianca(Boston Properties) Project: Proposed landscaping and stormwater improvements On a motion by Mr. Beuttell and seconded by Mr. Langseth, the Commission voted 6-0 to close the hearing. 8:17pm On a motion by Ms. Ladd and seconded by Mr. Langseth the Commission voted to adjourn.