31D-008 Lyman Pond Dredging Order of ConditionsOctober 11, 2012
File No. 15.0166175.01
Conservation Commission
Office of Planning Development
City of Northampton
210 Main Street
Northampton, MA 01060
Re: MassDEP File 246 -0661
Order of Conditions Compliance Letter of Understanding
Lyman Pond Restoration Project
College Lane
Northampton, Massachusetts
Dear Commission Members:
The undersigned have received, read, understand, and intend to fully comply with all ap-
plicable aspects of the Order of Conditions issued for the above referenced project, dated
February 29, 2012.
Very truly yours,
SMITH COLLEGE
D Hartwell
Applicant /Project Manager
126 West Street
Northampton, MA 01063
(413) 585 -2441
SCAPES BUILT 1.16 LANDSCAPING, LLC
Douglas Blowers
Contractor
851 Roaring Brook Road
Conway, MA 01341
(413) 665 -0185
ML`M+S4 LLL
GZA GEOENVIRONMENTAL, INC.
1,
Steven T. D'Ambrosio, P.E.
Consultant to the Applicant
1350 Main Street, Suite 1400
Springfield, MA 01103
(413) 726-2126
April 11, 2012
Gary Hartwell
Smith College Facilities Management
126 West Street
Northampton MA, 01063
RE: Order of Conditions, DEP #246-661; Lyman Pond Dredging, Parcel ID 31D-008
Dear Gary:
Enclosed please find the original signed Order of Conditions for the above referenced project.
This Order has been recorded in the Hampshire County Registry of Deeds, and filed with the Department
of Environmental Protection as required.
The ten business day legal appeal period from the date of issuance has expired, and the project may begin
at any time once pre-construction conditions are met.
Please read the document carefully, as it contains conditions that must be adhered to before, during, and
after work on the project.
Please feel free to contact me with any questions or concerns.
Thank you,
Sarah LaValley
Conservation, Preservation and Land Use Planner
Cc via email: Erin Haugh, GZA Environmental
Sarah LaValley
From:Erin Haugh [erin.haugh@gza.com]
Sent:Wednesday, January 25, 2012 4:23 PM
To:Sarah LaValley
Cc:Steven D'Ambrosio; ghartwel@email.smith.edu; 'Stinson, Mark (DEP)'
Subject:RE: Northampton DEP File Number Notification - Smith College Lyman Pond
Sarah,
We wanted to provide a response to the DEP comments. I have responded to comments 1 and 2 below. Steven
D’Ambrosio of our office will provide a response to comment 3 tomorrow.
[1] “LUWW is being impacted” My usual thoughts are
Table 1: Wetland Impact Summary
that without a pond or perennial stream there is no LUWW.
Resource Impacts Restoration (in
However, DEP is correct in that the height of the standpipe is
Area place)
actually the limits of LUWW resource area. With that in mind,
LUWW 2700 SF 2700 SF
the corrected wetland impact areas values for the project
Bank 10 LF 10 LF
include 2700 SF of LUWW (Table 1 shows new impact values).
There is a corresponding decrease in temporary Bank impacts BVW 50 SF (invasive 50 SF restored
species removal) in place
for the dredging so that only 10 LF will now be impacted for
access and for the viewing platform. A regulatory compliance
table (Table 2) follows to show that the project still complies with the regulations for LUWW with this new impact.
Table 2: LUWW General Performance Standards Compliance Summary
Performance Standard
310 CMR 10.56
Statement of Compliance
(4)(a)(1) Water Carrying Dredging will increase the volume in the pond and will help to
Capacity restore its carrying capacity.
(4)(a)(2) Ground and Surface The proposed dredging will not impair surface or ground water
Water Quality quality and rather, will remove any existing accumulation of
nutrient laden constituents.
(4)(a)(3) Provision of breeding Though dredging will temporarily remove the existing seed and
habitat, escape cover and food macrophyte bed within the pond, these have been at high levels
for fisheries to the point that it may be detrimental to local biodiversity. It is
anticipated that returning the pond to its original depths and
replanting with similar species will provide for a more sustainable
vegetative community that supports a similar variety of aquatic
wildlife.
(4)(a)(4) Wildlife Habitat The project will alter more than 10% but less than 5,000 S.F. of
Functions wildlife habitat. Since the project impacts more than 10%, it must
comply with 310 CMR 10.60. The capacity of the pond to provide
breeding habitat, escape cover and food for fisheries and
important wildlife habitat functions will not be adversely
impacted. The LUWW will be improved by restoring the pond to
a more viable waterbody and thus increase habitat available to
aquatic species. It is expected that within 2 years following work
the Wildlife Habitat of the pond will be restored to baseline
conditions, in fact it will likely be less than 2 years since the
College proposes to replant the pond. Therefore, no impact to
this wetland function will result from the proposed project.
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[2] The wooden box cover is in place to maintain the connection between the LPH pond and Paradise Pond.
Without the box cover, plant and other debris would flow un-obstructed into the pipe and eventually clog the pipe. This
allow additional plant matter to flow to Paradise Pond and eventually obstruct the pipe causing flow to cease (and WPA
jurisdiction to be removed).
We will see you tomorrow night at the meeting.
Thanks,
Erin
Erin R Gillen Haugh
Project Manager
GZA GeoEnvironmental, Inc.
(formerly Baystate Environmental Consultants, Inc.)
1350 Main Street, Suite 1400
Springfield, Massachusetts 01103
413-726-2100 (O)
413-732-1249 (F)
413-726-2115 Direct Dial
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