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ENB Region 7 Completed Applications 08/24/2016

Tompkins County


City of Ithaca
108 E Green St
Ithaca, NY 14850


Sixmile Creek Siltation Basin
Off Burns Rd between Slaterville & Coddington Rd
Ithaca, NY 14850

Application ID:


Permit(s) Applied for:

Article 15 Title 5 Stream Disturbance
Section 401 - Clean Water Act Water Quality Certification

Project is Located:

Ithaca, Tompkins County

Project Description:

Applicant proposes to perform maintenance dredging of approximately 90,000 cubic yards of sediment from the City of Ithaca Sixmile Creek Siltation Basin (6.5 acres). Basin will be drawn down and material will be removed through use of conventional mechanical excavation equipment including bulldozer, excavator, and scraper; and material will be trucked to one of two delineated sediment work areas located adjacent to the Basin for dewatering and screening.

Initial cycle will be a complete full-depth sediment removal effort across the entire Basin. Once complete, the City of Ithaca would move into a planned long term maintenance program. The forebay area (0.6 acres) will be excavated every two years to remove accumulated coarse material, estimated to yield approximately 5,800 cubic yards of material. The middle maintenance zone (2.8 acres) will be excavated every four years and excavation will result in approximately 35,000 cubic yards of material. The northern maintenance area (3.1 acres) will be excavated every 8 years, yielding approximately 40,000 cubic yards of dredged material.

Availability of Application Documents:

Filed application documents, and Department draft permits where applicable, are available for inspection during normal business hours at the address of the contact person. To ensure timely service at the time of inspection, it is recommended that an appointment be made with the contact person.

State Environmental Quality Review (SEQR) Determination:

Project is not subject to SEQR because it is a Type II action.

SEQR Lead Agency: None Designated

State Historic Preservation Act (SHPA) Determination:

The proposed activity is not subject to review in accordance with SHPA. The application type is exempt and/or the project involves the continuation of an existing operational activity.

Coastal Management:

This project is not located in a Coastal Management area and is not subject to the Waterfront Revitalization and Coastal Resources Act.

Opportunity for Public Comment:

Comments on this project must be submitted in writing to the Contact Person no later than Sep 08, 2016.


Teresa A Phelps
NYSDEC Region 7 Cortland Sub-Office
1285 Fisher Ave
Cortland, NY 13045

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