Engineering Comments THE E-MAILED
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Cbazm L3 375 Bay Road,Queensbury,NY 12804
P*(518)8,12.0513 F: (518)8,12.2205
CPAN www.chazencompanies.com
Hudson Valley Office (845)454.3980
Engineers
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Land Surveyors Cpital District Office (51 273-0055
Planners,
Environmental Professionals
Landscaoe Architects
March 9,2016
Mr.Craig Brown
Zoning Administrator and Code Compliance Officer
Town of Queensbury
742 Bay Road
Queensbury, New York 12804
Delivered via email only:0:�JB@qj!e i bury.net
Re: Spruce Hospitality(Fairfield Inn and Suites)
Town of Queensbury, la orren County, New York
Chaze,n Project#91600.23
Queensbury Ref#SP91.2016
Dear Mr, Brown:
The Cha en Companies (Chazen) has received a submission package from your office for the above
referenced project. The applicant intends to construct a 3 story hotel and associated site improvements
on 19.44 acre parcel. Submitted Information includes the following:
0 Site Plans and Details prepared by Hutchins Engineering,February 1,2016;
0 Stormwater Pollution Prevention Plan prepared by Hutchins Engineering, dated February 16,
2016; and,
0 Site Plan Review Application and Project Narrative dated February 16,2016.
Your office has requested that we limit our review to the design of toren water system as It relates to
compliance to local, state or relevant codes and regulations, Based upon our review, Chazen offers the
following comments for the Town's consideration:
Stormwater Management&Erosion and Sediment Control:
1. The project proposes to disturb an area of 4.25 acres and requires the preparation of a
Stormwater Pollution Prevention Plan (SWPPP� in accordance with GP-0-15-002 that includes
erosion and sediment controls as well as post construction stormwater management practices.
A Stormwater Pollution Prevention Plan (SWPPP) has been provided. Comments relating to the
Stormwater Management Report and SWPPP are offered below,
2. It does not appear that the SWPPP contains the inspection requirements per the General Permit
Part IV inspection and Maintenance Requirements.The Applicant to revise the SWPPP to Include
the inspection requirements of the General Permit.
Chazen Engineering, Land Surveying&Landscape Axhitecture Co,,D.R C.
chazen 66WOnmenfet SeMces,Wa
The Chazen Companies,Inc,
Town of Queensbay
Sprure Hospitality Group
Mauch 9,2016
Page 2
3. The Applicant has sent Inquiries to the NYSDEC and NYSOPRHP regarding threatened avid
endangered species and archeological resources per Part 1.F.4 and Part I.F.8 of the General
Permit.The Applicant to revise the SWPPP once the determination letters are received,
4. There appears to be a stream located west of the site but it does riot appear that the stream is
discussed in the SWPPP;the Applicant to clarify.
S. The roof leaders (tie into CR 6) from the southern half of the building do not appear to have
Invert,size,or material specifications on the drainage plan; the applicant to revise.
6. The Applicant modeled only 1 of the 4 roof leaders depicted on tile drainage plan;the Applicant
shall model all 4.
7. The Applicant shall Include all subcatchments on the proposed condition watershed map. For
instance, subcatchment 2A and 4A are not shown on the watershed map. Subcatchment 2A
("NW% hotel")and subcatchment 4A("NE X Hotel")consist of half the hotel but it is difficult to
discern what subcatchment the other half of the hotel falls within.
8. The subsurface infiltration bed detail on sheet S-7 shall provide dimensions for the chambers
such that the dimensions can be checked against the HydroCAD model.
9. It does not appear that the operation and maintenance plan includes O&M procedures for the
subsurface infiltration devices. The Applicant shall revise the operation and maintenance plan
accordingly and include the manufacturer's operation and maintenance requirements,
M The Applicant Intends to use the Camp Hazen method to size the pretreatment devices. The
Water Quality Volume spreadsheet calculates the impervious percentage for the subcatchments
and all impervious percentages fall under 75%; however the Applicant is using the Camp Hazen
formula (0.0081*WQv) for impervious percentages over 75%, The Applicant shall revise the
pretreatment calculations accordingly,
11. There appears to be a gap in the existing grading in the southwest area of the site near test pit
#3 and the swale;the Applicant to revise,
11 Four deep soil test pits were performed and the results are shown on sheet S3. It appears that
the deep soil test pits were not performed to an adequate depth to confirm the 3 feet of
separation to seasonally high groundwater/bedrock for infiltration devices In accordance with
section 63.1 of the NYS SMDM. For Instance, TP '4 has an existing ground elevation of
approximately 380% and was performed to a depth of 110" or roughly 370.8% the subsurface
infiltration system 2P has a bottom of stone depth of 370.3' — requiring a deep test pit to a
depth of approximately 367S. Chazer would not take exception to testing being performed at
the start of construction. However, It shall be noted that if any design changes occur because of
discovered inconsistency In soil conditions, the project may be subject to additional site plan
review. The Applicant shall notify the Town prior to advancing the soil testing; such that the
Town can witness the testing, If they so choose, The Applicant shall perform the testing In
conformance with section 6.3,1 and Appendix D of the NYS SMDM.
SP91-2016-ipmot 1,101PASIftv JF*kf*td Marriott
Town of Queensbuiy
Spruce Hospitalfty Group
March 9,2016
Page 3
13, The general layout of a future road is depicted on the overall layout and utility plan sheet; the
Applicant to clarify if the future road is part of the project and what the proposed use of the
future road is.
14. The Applicant shall provide a detail for the rock check dams.
15. The Erosion Control Implementation Schedule includes sediment basins, however sediment
basins are not depicted on the erosion control plan;the Applicant to revise.
In the event the Planning Board or Town staff have any questions or require additional information,
please do not hesitate to contact me at(518)824-19X
Sincerely,
Sean M. Doty, P.E.,LEED AP,CMS4S
Principal
Manager, Municipal Engineering Services
cc: Sunny Sweet,Town Planning Office Administrator(via email)
Laura Moore, Town Land Use Planner(via e-mail)
File
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