2021-07-19-CONCOM-min - Laserfiche WebLink

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Project: Proposed construction of a garage and living space addition to a single-family dwelling and expansion of a driveway. The proposed activities are located within the outer portion of 'Previously Developed' Riverfront Area associated with an offsite, unnamed perennial stream. The Applicant proposes to implement erosion controls to minimize the potential for impacts to the resource areas during construction, and stormwater management to improve existing site conditions. Documentation Submitted: — "Drainage Plan" Sheet C-0; "Drainage Plan" Sheet C-1; Prepared by: Gala Simon Associates, Inc.; Stamped and signed by: Alberto M. Gala, PE Civil No. 36434; Date: 6/22/2021; Revised "Label, misc." 6/30/2021; — "Notice of Intent Applicant and Wetland Resource Area Analysis" and attachments; Prepared for Applicant/Property Owner: Amy Hung; Prepared by: LEC Environmental Consultants, Inc.; Date: 6/29/2021; — "Engineering Drainage Calculations for 12 Ledgelawn Avenue, Lexington, Massachusetts"; Prepared by: Gala Simon Associates, Inc.; Stamped and signed by: Alberto M. Gala, PE; Date: 6/22/2021; Ms. Julia Hoogeboom, LEC Environmental, and Mr. Al Gala, Project Engineer, presented before the Commission. Mr. Gala stated that soil tests pits were performed and groundwater was not observed. A DEP number has not yet been issued. Questions from the Commission: — Where is the construction entrance? — Why is the front half of the dwelling not included in the infiltration system? — Would like to see much more tree protection around the 34-inch maple on the southwestern portion of the front of the dwelling. It is very close to the access route and proposed regrading work, would prefer more root protection in place and something more semi-permanent like a chain link fence. Responses from the Representative: — The construction entrance is shown on the existing conditions plan, towards the end of the driveway. — The front half of the dwelling could be added into the drainage calculations, however, what is being proposed was sufficient to meet requirements. Could connect the downspout. — Would be open to a Condition that a certified arborist be on site to supervise the tree protection. On a motion by Mr. Beuttell and seconded by Ms. Dohan, the Commission voted 7-0 by roll call vote to continue the hearing to the August 2, 2021 meeting at the applicant's request. Record of vote as follows: Kevin Beuttell—Aye Duke Bitsko —Aye Alex Dohan—Aye