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Engineering_2nd review North Country Office 100 Glen Street, Glens Falls, NY 12801 P: (518) 812-0513 F: (518) 824-8391 www.chazencompanies.com Hudson Valley Office (845) 454-3980 Engineers Environmental Professionals Capital District Office (518) 273-0055 Land Surveyors Landscape Architects Planners March 14, 2012 Mr. Craig Brown Zoning Administrator and Code Compliance Officer Town of Queensbury 742 Bay Road Queensbury New York 12804 Delivered via email only: CraigB@queensbury.net Re: William Threw Lot 12 Site Plan Review Town of Queensbury, Warren County, New York Chazen Project # 91204.01 Queensbury Ref. No: Site Plan 2-2012 Dear Mr. Brown: The Chazen Companies (Chazen) has received the latest submission package from your office above referenced project. Based upon our review of the informati comments for the Towns consideration: Stormwater Management & Erosion and Sediment Control: 1.In response to Comment 2 of Chazens January 12, 2012 letter, ad performed on-site, which shows consistently deep and well drained sandy soils-2 was not advanced to an adequate depth to verify appropriate sepaion to groundwater/bedrock for infiltration facility 3AP. Additional testing must be perfor distance from seasonally high groundwater (minimum 3-feet) at this location. Chazen would not take exception to testing being performed at the start of construction. However, it shall be noted that any design changes that occur because of discovered inconsistency in soil conditions, may be subject to additional site plan review. 2.The Applicant has included Water Quality Volume and Channel Protn Volume Tables within the SWPPP, as well as a combined table on drawing S3  Grading & Drainage Plan. There are inconsistencies in the values presented within these tables. In clarify the table presented on the plan. It is unclear whether the values presented are those required or those provided. It appears that the values vary between these two type same column. It is recommended that these values be presented in a single loc inconsistency. 3.The storage volumes provided for the forebays, and the volumes i facilities for the 100-yr storm, which are listed in the table on drawing S3  Grading & Drainage Town of Queensbury Site Plan 2-2012 William Threw Lot 12 March 14, 2012 Page 2 Plan, are not consistent with the values generated from the HydroCAD modeling. It is recommended that these values be presented in a single location 4.In response to Comment 12 of Chazens January 12, 2012 letter, the Applicant indicates that an inquiry has been made to NYSDEC regarding Endangered Species as it relates to the development of the site. In accordance with Part I(D)(4) of the General Permit, the SWPPP must contain documentation supporting the determination of permit eligibility. Once a determination has been made, the Applicant shall provide the Town with supporting documentation and revise the SW to include a summary of such documents to support permit eligibility. 5.In response to Comment 13 of Chazens January 12, 2012 letter, the Applicant indicates that an inquiry has been made to OPRHP regarding Archeological Resources and Historic Places a relates to the development of the site. In accordance with Part of the General Permit, the SWPPP must contain documentation supporting the determination of permit eligibility. At a minimum the criteria outlined in Part III(A)(8) a through d must to support permit eligibility. Once a determination has been made, the Applicant s supporting documentation and revise the SWPPP to include a summary of such documents to support permit eligibility. Conclusions and Recommendations It is our opinion that the applicant should provide clarificatio changes in subsequent plan submissions. If you have any questions regarding the above, please do not hesitate to me at (518) 824-1926. Sincerely, Sean M. Doty, P.E., LEED AP Senior Project Engineer cc: Pam Whiting, Town Planning Office Administrator (via email) Keith Oborne, Town Planner (via email) Joel Bianchi, P.E., Senior Director - Municipal Engineering (via email) File R:\9\91200-91299\91204.00 -Town of Queensbury PB Engineer\91204.02-SP 2-2012 -William Threw Lot 12\SP 2-2012 William Threw 03-14-12_L2.docx