2018.01.10 Dolph Rotfeld Engineering CommentsDolph Rotfeld Engineering, P.C.
M E M O
TO: Paul S. Rosenberg, Mayor, and the
Village of Rye Brook Board of Trustees
FROM: Anthony Oliveri, P.E.
SUBJECT: 900 King Street Redevelopment
PUD Concept Plan and Preliminary Site Plan
DATE: January 10, 2018
With regard to the above mentioned project, this office has received and reviewed the
following:
1. Draft DEIS Scoping Outline, dated 12/21/17;
Our comments are as follows:
1. Under § 6.4, include an analysis and comparison of existing and proposed
conditions incorporating upstream tributary watersheds as well as existing
downstream drainage infrastructure to determine current infrastructure capacity
and conditions and overall adequacy of the Village system.
2. Under § 6.4, include soil testing to determine infiltration characteristics,
groundwater elevations and presence of ledge rock for determination of types of
stormwater practices that are feasible as per current NYSDEC Design Manual.
3. Under § 10.2.5, include discussion of fire apparatus building access in
compliance with IBC and IFC.
4. Under § 11.2.3, include use of actual fire flow test results to determine available
capacities of existing water supply and an analysis of the capacity available at
the proposed project site while fire fighting is occurring in the vicinity.
5. Under § 11.3.3, include performance of sanitary sewer flow monitoring, CCTV
inspection and smoke testing as required to determine capacity and condition of
municipal sewer system.
900 King Street Redevelopment - DEIS Scoping Outline
January 10, 2018
Page 2 of 2
6. Under § 11.3.3, include "willingness to serve" letter from WCDEF.
7. Under § 11.3.4, include discussion regarding Inflow and Infiltration (I&I) mitigation
at the ratio of 3:1 per Westchester County Planning. Areas of mitigation to be
identified by sanitary sewer investigation (flow monitoring, CCTV inspection,
smoke testing) by the applicant or through use of existing information provided by
the Village. Actual I&I removal by the applicant or the placement of funds into an
account to be determined by the Village would be acceptable.
8. Under § 16.2, include a detailed phasing and construction sequence and
discussion of impacts from the disturbance of 13+ acres in one phase.
Discussion with regard to limiting open disturbance should be included and
needed Best Management Practices at each phase of construction.
We will be happy to continue our review once additional information is received,
Thank You
C: M. Nowak M. Mohamed
C. Bradbury M. Izzo
J. Gray