HomeMy WebLinkAbout1992_01_28 Coastal Zone Management Commission Minutes (2) Town of Mamaroneck — Village of Larchmont
4/1111 COASTAL ZONE MANAGEMENT COMMISSION
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JULY 28, 1992
A regular meeting of the Coastal Zone Management Commission (CZMC) was
held on Tuesday, July 28, 1992 in Conference Room A at the Town Center,
740 West Boston Post Road, Mamaroneck, New York. The meeting commenced
at 8:05 p.m.
Members Present: Phyllis Wittner, Chairman
Richard Coico
Mary Feldtmose
Elinor Fredston
Angel Martin
C. Alan Mason
Howard McMichael, Jr.
Richard Metzner
Shirley Tolley
Richard Young
Others Present: Frank Gagliardo, Landscape Architect, Erwin
N. Potter & Associates,, Consultant for 61 and 65
Woodbine Ave.
Mel Gardner, Larchmont Resident
Joan Hansen, CZMC Consultant, Malcolm Pirnie, Inc.
Chris Powell, Rosenblum Harb Architects
Elaine Price, Councilwoman, Town of Mamaroneck
Martin Siefering, Consultant for the Hoimocks
Park Apts., Perkins, Eastman and Partners
Gary Trachtman, Malcolm Pirnie, Inc.
Richard J. Ward, 173 Larchmont Ave., Larchmont
Claudia Ng, Environmental Coordinator
Ellen Morse, Recorder
REFERRALS
A. Sixty One (61) and 65 Woodbine Avenue - VOL Planning Commission -
This is a Type I Action in a critical environmental area on the
Premium River. Permits required are for grading and alteration,
phragmite removal, and for the new residence. Material received to
date include a cover letter dated May 27 with a joint application for
a permit on behalf of Mrs. Amy Cohen; application for an expansion of
the existing residence at 61 Woodbine with a reconstruction and
demolition of the garage to be made into a new house; grading
® alterations to fill around this structure to accommodate terrace,
gardens, courtyard, etc.; and replanting of phragmites at the edge of
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CZMC Minutes
July 28, 1992
Page 2
the water. Also received was a June 22 letter to the DEC requesting
that the VOL Planning Board be the lead agency.
Mr. Gagliardo gave a presentation explaining his company's work on
the site. He spoke of same primary concerns to CZMC:
(1) Construction of a single family residence to include grading
alterations around the structure. Because the grading
alterations are within 56 feet of the wetland edge, it requires
a wetland permit.
(2) Estimate of 2,000 cubic yard of fill to be brought in for
terrace, gardens, patios, and dry stone walls. Mr. Gagliardo
showed where the fill will go and the retaining wall.
(3) Phragmites removal. This reed grows to about 8 feet high and
obstructs the water view. They will follow any recommendations
for replacement planting. When Mrs. Wittner originally saw the
application it required phragmites removal with a product called
'Round Up". Because of concerns on the use of this product,
Mrs. Wittner researched it and found it was not the correct
product for this application. Monsanto has another product
called 'Rodeo"" which has no known adverse impact on fish and
wildlife but the AMA Journal reports it is a weak carcinogen and
mild eye and skin irritant. The DEC has recommended its use.
Joan Hansen gave a presentation explaining which plants might be
used in place of the phragmites. She expressed concern about
the no-salt tolerant plants selected by Mr. Gagliardo and made
up a list of salt tolerant plants for him to consider. She
explained the advantages of keeping the phragmites (an exotic
plant whose root system takes up heavy metal) but also its
disadvantages (can destroy beneficial plants) . Another
suggestion was to cut back the phragmites up to the point where
the slope drops off and plant shrubs and other types of salt
marsh plants to get a view of the River. Because of the pros
and cons of the phragmite removal, it was suggested to exclude
permission for removal from the permit until such time that
removal is demonstrated essential to the project.
(4) There are no catch basins along Woodbine Ave. and water runs
down the curb line. When it reaches the driveway, it cuts
across and settles into a low area. The Planning Board said
this is a preexisting condition and the applicant could correct
it at her awn expense. Mr. Gagliardo reported they will put in
a catch basin at the Village Engineer's request. He also
suggested a yard drain to pick up any water which comes in
and/or might drain off fran the grading. The existing sanitary
sewer line will be relocated. When asked about a possible
o surcharge fran the storm drain spilling out onto Woodbine Ave.,
Mr. Gagliardo replied that the Village Engineer said the drain
CZMC Minutes
July 28, 1992
Page 3
would be adequate. There is concern about the low spot where
one of the catch basins is planned. It was suggested to build a
pond up front but Mr. Gagliardo did not think the property would
be suitable and they would look at other solutions to this
problem. One solution they will investigate is a retention
basin and finding a way to discharge the water allowing silt and
sediment to filter out. It was decided that some members of the
Commission should speak to Joe Morgan, the Village Engineer,
about technical questions. The CZMC will request that the
applicant submit an erosion and sediment control plan. CZMC
will give their opinion at the public hearing at the end of
August.
B. TOM Planning Board - Hammocks Park Apartments, 1361 Boston Post Road
Gary Trachtman gave a presentation and explained the drainage plans.
Malcolm Pirnie proposes a series of catch basins but have not decided
the connection point because of concerns about subsurface conditions
where the connection would be made and in other cases, they have
concerns regarding the relative elevation of discharge point to the
available cover over the top of the sewer pipe. He also explained
the possibility of using a chamber.
It was questioned as to the increase in flow to the sanitary sewer
due to added kitchens. Mr. Trachtman replied that it was determined
that the existing sewer is adequate and the impact will be very
minimal. Where there are impervious surfaces, any water will be
captured and directed underground. Mr. Trachtman reported that the
EAF that was filed showed the pervious surfaces increasing slightly
and the impervious surfaces decreasing. This may not be a plus
because of the nature of the rocky site. Mr. Martin raised the
question of high pollution levels in East Creek when the motel was in
use at the point where the 48" sewer pipe canes in and decreased
pollution levels after the Hotel was closed. He feels there might
have been a cross connection between the sanitary system and the
storm sewer system. Mr. Trachtman recommended alerting the Building
Department and having the matter checked out. In concluding, Mrs.
Wittner felt all of CZMC's concerns had been dealt with.
COUNCILWOMAN ELAN' PRICE
A. Update Westchester County Citizens Committees Non-Point and Point
Pollution in Long Island Sound
Councilwoman Price explained that these committees were formed by
County Executive Andrew O'Rourke to look into the problems with the
nitrogen cap. Councilwoman Price said that she is on two
subcommittees. The Point Source Pollution Committee's members are:
Chairman Christopher Russo, Warren Ross, Larry Bock, and Councilwoman
Price.
CZMC Minutes
July 28, 1992
Page 4
Councilwoman Price, who is also on the Non-Point Biological Controls
Committee headed by Laura Tessier, felt that with the non-point
biological controls, they might at best only eradicate 8% of the
total nitrogen going into the Sound. It is felt that the target
should be point source. Councilwoman Price explained that the
non-point committee had a master map sent to communities to identify
wet and dry detention basins, and what Best Management Practices
(BMP) they were using in their community. About 20-25 communities
responded. The purpose was to identify areas that can be retrofitted
to wet retention basins that would keep the water in and minimize
soil erosion. Gary Trachtman did this area's map which he showed.
The difference between wet and dry was explained through identifying
certain areas, e.g., dry areas would be the Fenbrook subdivision,
Larchn nt Apartment complex and Carleton House. Examples of wet
facilities would be Gardens Lake. Sixteen locations were identified
in that category. Half are structures, one third are natural and
another one third are man made. Those areas have sane value as being
capture points before things get out into the Sound. Mr. Trachtman
explained that dry ponds remove only about 10-20% of the nitrogen and
phosphorous caning in. Wet ponds drain anywhere from mid 20% on
phosphorous to 40-60% on nitrogen, thus the wet pond would be more
efficient. But more wet ponds result in more mosquitoes requiring
maintenance. As the Premium Marsh is becoming more of an upland
environment, Mr. Trachtman suggested channelization - extending the
River back into an area where a lattice work of channels would
promote growth of certain species.
B. Pohlmann Report - Councilwoman Price distributed copies of this
report which outlines the necessity for cleaning up the Sound and
Hudson River by combining the sewer districts and gives figures about
cost appreciation of the sewer districts. Councilwoman Price feels
by phasing in the merging of the districts, certain districts such as
Mamaroneck would only have a slight increase. She asked for CZMC's
support in backing this project and said she would keep them informed
about the project.
APPROVAL OF MINUTES
The minutes of June 16, 1992 were approved.
CHAIRMAN REPORTS
A. Correspondence - Inconinq:
1. 7/1/92 - Received the disc for the LWRP.
2. 7/2/92 - Supervisor Silverstone re: Housing Task Force Update on
the Status of Affordable Housing.
3. Letter from Councilwoman Price to P. Wittner re: Biological
Controls Subcommittee Draft Report.
CZMC Minutes
July 28, 1992
Page 5
B. Correspondence - Outgoing:
1. To Mayor Lewy and Supervisor Silverstone re: CZMC appointments.
Angel Martin will become Chairman starting in October; both
Shirley Tolley and Larry Lowy will be stepping down, although
Shirley Tolley will still continue doing work for CZMC; Mary
Feldtmose has been reappointed. The VOL will appoint a
replacement for Mr. Martin to a one-year tern and another person
will be appointed to a three-year tern as a replacement for
Mr. Lowy.
2. 6/13/92 to Joan Hansen requesting her consultation on 61
Woodbine Ave.
3. 6/19/92 letter to the Planning Board re: information on
amendments to the Service Business Zone.
4. 6/23/92 to Sandy Bell re: non-submittal of opinion on Hammocks
Park Apartments as awaiting drainage information.
C. Correspondence - Copies
1. 6/16/92 from Councilwoman Price to Supervisor and Town
Administrator re: Joint Work Session for Proposed Surface Water,
Erosion, and Sediment Control Law.
2. Notice from Commissioner Oliva, Westchester County Department of
Planning, Clarification of County CEA's.
3. Gary Trachtman to S. Altieri re: Contractual Arrangement for
Joan Hansen to do work on Woodbine Avenue and attend the July 28
CZMC meeting this evening.
MEMBERS/ REPORTS/MINUTE
Richard Metzner - Scenic Views: Took pictures from Dog Beach
east/south around and to Lorenzen and up to Pine Brook of any places that
had a view toward the Sound and other water bodies. Mrs. Wittner said
the Commission has to decide if they want to get into this for the LWRP
update. She tabled this topic until the next meeting.
Shirley Tolley - Updated Town of Mamaroneck Freshwater Wetlands Map:
Shirley Tolley gave her proposal for a more accurate updated wetlands
map. She proposed that sameone with expertise in wetlands go out into
the field and do an updated map. She would get estimates and put
together aerial maps and other material which the Town already has. She
showed the present map where a Sheldrake tributary that parallels Bonnie
Way is also a wetland area which should be on the map. Ms. Tolley said
she would check with the County to see what maps they have, and it was
suggested that Con Edison might have maps which could be used also. Mrs.
Wittner asked whether it is appropriate to also propose this project to
the CAC, Planning Board, and Town Board. She asked Claudia Ng to discuss
the project at the next CZMC meeting when this proposal could be
considered.
NEXT MEETING: August 25, 1992.
The meetina adjourned at 11:00 D.M.