Engineering comments THE.
Cba � North Country Office
�� 375 Bay Road, Queensbury, NY 12804
COM PAN I�� P: (518) 812-0513 F: (518) 812-2205
1 V it www.chazencompanies.com
Proud to be l rnploynr Owned
Engineers Hudson Valley Office (845)454-3980
Land Surveyors Capital District Office (518) 273-0055
Planners
Environmental Professionals
Landscape Architects
May 11, 2017
Mr. Craig Brown
Zoning Administrator and Code Compliance Officer
Town of Queensbury
742 Bay Road
Queensbury, New York 12804
Delivered via email only: CraigB@gueensbury.net
Re: Christopher Mackey—Corinth Road Storage Building
Town of Queensbury, Warren County, New York
Chazen Project#91700.20
Queensbury Ref#SP38-2017
Dear Mr. Brown:
The Chazen Companies (Chazen) has received a submission package from your office for the above
referenced project. The applicant intends to construct a 2,450 square feet storage structure on a 0.26
acre vacant lot. Submitted information includes the following:
• Site Plans and Details prepared by EDP, LLP, dated April 17, 2017;
• Cover letter prepared by EDP, LLP, dated April 15, 2017;
• Short EAF, and;
• Town of Queensbury Site Plan Application;
Your office has requested that we review the design of stormwater system it relates to compliance to
local, state or relevant codes/regulations and general practice. Based upon our review, Chazen offers
the following comments for the Town's consideration:
Stormwater Management& Erosion and Sediment Control:
1. It appears that the proposed site improvements disturb less than one (1) acre and thus the
project is not required to obtain coverage under the NYSDEC SPDES General Permit for
Stormwater Discharges from Construction Activity (GP-0-15-002). Comments related to the
proposed stormwater management and erosion and sediment control features proposed for the
site are offered below:
2. Section 179-6-080 of the Town Code, states that stormwater drainage plans shall analyze the
impacts of a project using at least a 50-year return interval storm with regards to both runoff
rate and volume for commercial projects. Section 179-6-080 prescribes that stormwater
management be designed so that post-development runoff rates and volumes are equal to or
less than pre-development runoff.
Chazen Engineering, Land Surveying&Landscape Architecture Co., D.P.C.
Chazen Environmental Services, Inc.
The Chazen Companies, Inc.
Town of Queensbury
Christopher Mackey—Corinth Road Storage Building
May 11,2017
Page 2
It does not appear that a pre-development versus post-development map and stormwater
analysis are provided to ensure conformance with Section 179-6-080. The analysis shall be
provided with the next submission.
3. It does not appear that existing and proposed contours are shown.The Applicant shall revise the
plans to depict existing and proposed contours.
4. A legally binding and enforceable maintenance agreement may be executed between the facility
owner and the Town ensuring that proper maintenance measures will be implemented for all
proposed stormwater management practices as specified in Town code section 147-10.D if the
Town chooses. A draft of this agreement should be provided to the Town for review and shall
be included in the SWPPP.
5. The Applicant shall provide more detail on the proposed stormwater features. It is difficult to
discern any emergency overflow and/or proposed outlets.
6. The Applicant shall provide a stormwater narrative that explains the intent of the design, site
grading, site soils, and groundwater levels. For instance, is there intent for the stormwater
features to act as infiltration devices; if so, have soil tests been performed and where is the pre-
treatment located.
7. It does not appear that test pits were performed. The Applicant shall perform test pits within
the limits of the proposed stormwater features to note any seasonally high groundwater or
bedrock conditions.
8. If applicable, the Applicant to depict any neighboring water wells.
Conclusions and Recommendations
It is our opinion that the applicant should provide clarification for the above items and incorporate the
changes in subsequent plan submissions.
If you have any questions regarding the above, please do not hesitate to contact me at (518) 824-1926.
Sincerely,
: ' �n^
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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