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HomeMy WebLinkAbout2010_11_29 Coastal Zone Management Commission Minutes CZMC Minutes November 29, 2010 A regular meeting of the Coastal Zone Management Commission (CZMC) was held on November 29, 2010 in the Mamaroneck Town Center, Conference Room C, 1st Floor, 740 W. Boston Post Road, Mamaroneck, New York. The meeting was called to order at 7:00 p.m. MEMBERS PRESENT: Marc Godick, Co-Chair Lorraine Walsh, Co-Chair Howard McMichael Pam Michels REGRETS: Matthew Teitsch Rita Murray OTHERS PRESENT: Phyllis Wittner, Councilwoman, Town of Mamaroneck Elizabeth Paul, Environmental Planner, Town of Mamaroneck Stephen Marsh, 77 Cooper Lane 1. Approval of Minutes The Minutes of the October 25, 2010 meeting were approved as submitted. 2. Referrals: a. Subdivision and Site Plan Amendment— 77 Cooper Lane, Block 217, Lot 580 Referred by the Town of Mamaroneck Planning Board Stephen Marsh, the applicant, presented the proposed amendment to the Subdivision and Site Plan for the construction of two new single family homes on the site formally occupied by one. The original plan called for the installation of two attenuation galleries to capture the runoff from the two lots and release the flow at a controlled rate. The amendment is being sought by the applicant in cooperation with the Town, in an effort to improve the stormwater collection system on Cooper Lane. The applicant is proposing to eliminate the attenuation galleries and add new stormwater piping along Cooper Lane. The Town will seek an easement from the property owner at 110 Hickory Grove Drive to install an outfall to the Sheldrake River below the falls. The original application for this project included the retention of all stormwater runoff from the impervious surfaces on the site. The revised application includes the Page 1 of 2 direct discharge of stormwater from the impervious surfaces to the improved storm sewer along Cooper Lane (i.e., without any retention). While the changes to the storm sewer system would improve localized flooding conditions along Cooper Lane, peak flows from the site for the revised plan in comparison to the original plan would increase, which would increase the risk of flooding downstream of Cooper Lane. CZMC found the proposed amendments to be consistent with the policies found in the LWRP provided that the application includes the proposed improvements to the storm sewer along Cooper Lane and is amended to include the retention or detention of stormwater from the site. Specifically, retention of storm water utilizing infiltrators or drywells from impervious surfaces is recommended. This should include, at a minimum, collecting run-off from the roof leaders from each of the proposed homes and directing it to the infiltrators or drywells. The next scheduled CZMC meeting will be held on MONDAY, January 24, 2011 at the Mamaroneck Town Center, 740 W. Boston Post Road, 1st Floor Conference Room D. Anyone unable to attend this meeting should contact Elizabeth Paul at (914) 381-7845 or at conservationdept@ townofmamaroneck.org. Page 2 of 2