HomeMy WebLinkAbout2004_02_03 Coastal Zone Management Commission Minutes Town of Mamaroneck — Village of Larchmont
COASTAL ZONE MANAGEMENT COMMISSION
TOWN CENTER: 740 West Boston Post Road, Mamaroneck, NY 10543
t = 914-381-7845
CZMC Minutes
February 3,2004
The regular meeting of the Coastal Zone Management Commission (CZMC)on January 27th was
cancelled due to inclement weather. The meeting was rescheduled and held on February 3, 2004 in the
Mamaroneck Town Center, Conference Room A,2nd Floor,740 W. Boston Post Road, Mamaroneck,
New York. The meeting was called to order at 8:00 p.m.
MEMBERS PRESENT:
Marc Godick, Chairman
Lili Andrews
Madelaine Berg
Dickson Brown s./
Elizabeth Cooney ,
Bernard Kaplan ; W ECE Vrn
Howard McMichael HAR 5 2004
REGRETS: PATRiCIA A.";fir"
Katherine Dehais
John Feingold
OTHERS PRESENT:
Elizabeth Paul Environmental Coordinator, Town of Mamaroneck
Steven Gamelsky Engineer,24 Lester Place
Mario Canteros Architect,24 Lester Place
John Varela Applicant,24 Lester Place
Virginia Picciotto Applicant, 1046 Palmer Ave.
Frank Marsella Applicant, 1046 Palmer Ave.
Benedict Salanitro Engineer, 1046 Palmer Ave.
Donna Maiello Engineer/Planner, Divney Tung Schwalbe, Forest City Daly
1. Approval of Minutes
The minutes of November 25,2003 were approved as submitted.
2. Referrals
a. Subdivision/Site Plan Approval—Varela LLC—24 Lester Place—Block 103,Lot 62
Referred by the Town of Mamaroneck Planning Board
Mario Canteros, architect and Steven Gamelsky, engineer presented revised plans and
submission documents for the construction of five new homes and a private road. The revised
plans included more detailed information on the proposed stormwater management system,
topography, and erosion and sediment control plan. The report contains the design calculations
and a stormwater management system maintenance plan.
CZMC finds the proposed action to be consistent with the policies set forth in the LWRP.
CZMC is pleased to see the use of innovative, low impact development(LID)techniques for
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stormwater management, such as block pavers,"bioretention swales"and"biodetention cells"
on this application. However,CZMC cautions the use of these practices without appropriate
deed restrictions to ensure their continued maintenance by home owners. In addition, the
applicant should be required to submit a detailed maintenance plan for the stormwater detention
facility and the sand filtration system and the Homeowner's Association should be required to
submit copies of all inspection reports to the Town. The Stormwater Pollution Prevention Plan
(SWPPP) Soil Stabilization Section(3.3.4)and associated Stormwater Management Plan (Soil
Erosion & Sediment Control Plan)refer to soil stabilization best management practices(BMPs)
by reference. Notwithstanding, stabilization with temporary vegetative cover via hydroseeding
should be implemented in all areas as soon as possible following soil disturbance activities.
b. Subdivision/Site Plan Approval—Marsella&Picciotto—1046 Palmer Avenue—Block 407,
Lot 347
Referred by the Town of Mamaroneck Planning Board
Frank Marsella and Virginia Picciotto,the applicants,and Benedict Salanitro,the consulting
engineer, presented plans for the demolition of the existing single family house and the
construction of two new houses.
CZMC finds the proposed action to be consistent with the policies set forth in the LWRP. The
Applicant's engineer was not able to perform the necessary percolation tests and borings for the
design of the drywell system due to the frozen ground conditions at the site and instead,
estimated the percolation rates and drywell locations. CZMC recommended and the applicant
agreed to perform actual percolation tests and borings,when conditions permit, at the location
and depth of the proposed drywells. The assumed design should then be reevaluated and
modified, if necessary,at that time. .
c. Forest City Daly Draft Environmental Impact Statement
Referred by the Mamaroneck Town Board
CZMC reviewed the Draft Environmental Impact Statement for the Forest City Daly Proposal
and offered the following comments:
1. Stormwater Management
a. Stormwater Quality
The applicant is stating that there will be an overall improvement in the quality of
the stormwater being discharged from the site (page I-9). However, there will be an
8% increase in the amount of metals present in the stormwater discharges after
treatment by a sand filter. What is the potential impact of this increase in metals on
the Pine Brook and Long Island Sound? What is the pollution source of the metals?
Why are the estimated levels of metals so high? What can be done to mitigate this?
b. Stormwater Quantity
The applicant is proposing the use of a sand filter and stormwater detention structure
to manage and treat stormwater. These systems are typically designed with an
overflow to the stormwater sewer. In the event that the structures become clogged or
fail due to a lack of maintenance,stormwater would bypass and flow directly into the
stormwater sewer without detention or treatment. To prevent this scenario,the
applicant should provide the Town with a detailed maintenance schedule that is
enforceable by the Town.
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C Appendix 5, Stormwater Management Report, Page II-2,the 1st paragraph
erroneously states, "Runoff from the municipal system in Madison Avenue
discharges into the Mamaronq J ,1 iver,.. ' ;This,,sjiould be corrected to read, "Runoff
from the municipal system in Madison Avenue discharges into the Pine Brook..." It
should be noted that the Pine Brook is subject to serious flooding downgradient of
the project site in the Village of Larchmont. The applicant should evaluate the
capacity of the Pine Brook to receive stormwater from the project site and propose
alternatives to minimize discharges to this tributary.
The present proposal contains a large amount of impervious surface. In addition, the
stormwater design goals provide for detention rather than retention. In consideration
of the known flooding conditions of the Pine Brook,the applicant should utilize
other alternatives which could reduce the amount of stormwater discharges off-site
utilizing Low Impact Development techniques, including but not limited to,the use
of retention structures to store,treat, and retain water on-site,the allowance for more
pervious areas and materials, and increased plantings in parking areas and rooftops
to provide additional detention and/or retention.
2. Environmental Assessment
Pages III.B-2 and III.B-3 state that ELM conducted additional testing of on-site soils and
groundwater during September 2002. This study was not included in the Appendices and
should be. In addition, The Phase II Environmental Assessment Report should be
included in the Appendices.
` 3. Construction Impacts
lo
During construction, how does the applicant plan to pre-treat stormwater and
groundwater discharges from the site to remove pollutants, sediment, etc?
3. Flint Park Request for Proposal f ;.
Mayor Kenneth Bialo invited members of CZN!C, Sheldrake Environmental Center and Flint Park
Conservancy to a meeting on December 15,2003 to discuss the restoration and use of the
conservation area of Flint Park. The entire Flint Park Improvement Project is expected to cost
between $900,000 and $1,000,000 to complete. Of this,approximately$100,000 will be used for
conservation area restoration. CZMC presented a Request for Proposal for the conceptual design of
this area. The Mayor,while appreciative of the effort,requested that the group visit the park and, at
another meeting, provide him with our suggestions. Several of the meeting attendees visited the
park in January. A letter will be written to the Mayor stating that CZMC is still interested in taking
an active role in this project and to see what the next step will be.
4. Open Space Inventory
A draft of the Open Space inventory was distributed to all members. Comments should be sent to
Elizabeth Paul.
5. Annual Report
The Annual Report was revised and distributed to all members. Comments were received from
Phyllis Wittner and Bernie Kaplan. Any additional comments are to be submitted by February 10t
for inclusion in the final report.
6. Old Business
410 No old business to discuss.
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7. New Business
A memo on the Historic Harbor Festival was distributed. The Village of Mamaroneck is seeking the
participation of all local water groups in a water pavilion to be set up at their Historic Harbor
Festival. Anyone interested in participating should contact Christie Derrico or Katherine Desmond.
The meeting was adjourned at 10:00 p.m.
The next scheduled CZMC meeting will be held on February 24,2004 at the Mamaroneck Town
Center,740 West Boston Post Road,2°d Floor,Conference Room A. Anyone unable to attend this
meeting should contact Elizabeth Paul at(914)381-7845 or at
conservationdept@townofmamaroneck.org
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