HomeMy WebLinkAboutZMA202100003 Correspondence 2022-02-22 (3)InWden Environmental services, Inc.
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IES
18 November 2021
Mr. Charles D'Angelo
Clifton Inn Management, LLC
4 Warwick Road
Summit, NJ 07901
5790 MainStreet
Mt. Jackson, VA 22842
Tel. (540) 477-3300
FAX: (540) 477-3360
www.inbodenEnv.com
Revision to Expansion Evaluation Onsite Wastewater Management for Clifton Inn Project
Dear Mr. D'Angelo:
This letter is to provide a minor revision to the Clifton Inn and Collina Farm Onsite Wastewater Management —
Expansion Feasibility Evaluation, dated 30 July 2021. This revision is to address a revised expansion capacity for
the restaurant of 100 seats.
Inboden Environmental Services, Inc. (IES) evaluated the sewage flow for the scenario of: existing Inn, 35 new
rooms,100 seat restaurant capacity and a 75 person day -use event center. The revised wastewater flow rates
and flow equalization volume are listed below.
• Peak daily Influent 7,875 gal/day [previously 7,575 gal.]
• Equalized Flow to treatment system: 4,600 gpd [previously 4,000 gpd]
• 7-day Flow Equalization Tank Volume: 11,500 gal. [previously 9,500 gal.]
The treatment system would be upgraded as outlined in the previous proposal with an increased capacity for
these higher flows. Effluent would be managed using the existing disposal system consisting of drip dispersal
and gravity drainfields plus additional area as required.
IES has preliminarily identified over 36,000 square feet of additional suitable soil area. This area would have to
be confirmed with additional soil evaluations. The Nitrogen Dilution Management Area (NDMA) would be
revised based on the new effluent flow rates. IES believes that sufficient area is available around the existing
and expanded disposal areas. If necessary, effluent nitrogen concentration could be reduced with an
additional treatment step so that the NDMA available is sufficient to meet the regulatory requirements.
Conclusions
I conclude that the existing AOSS, with recommended repairs and improvements are implemented, would be
capable of managing the sewage flow from the proposed expansion outlined above. The required
improvements would be defined in detail during final engineering and permitting. Please contact me if you
have questions and/or comments. We look forward to moving forward with the next steps in the project.
Sincerely,
*aM!:acioIek, P.E.
Senior Environmental Engineer
Inboden Environmental Services, Inc. Page 1 of 1
Tel. (800) 648-1010