Attachment 15: Appendix C-Procedure for Environmental Protection 2026-10-27 0004

PROCEDURE FOR ENVIRONMENTAL PROTECTION

For contract work, the Contractor shall comply with all applicable Federal, State, or local laws and regulations. The environmental resources within the project boundaries and those affected outside the limits of permanent work under this contract shall be protected at least during the entire period of this contract. The Contractor shall confine their activities to areas defined by the drawings and specifications. Environmental protection requirements shall be implemented as described in the following subparagraphs.
1. General Project Environmental Design and Installation Criteria a. In order to minimize interaction with aquatic species and reduce sound propagation through the water, nearshore/shoreline activities including sheet pile installation, construction of riprap scour protection, and spartina plantings shall only be conducted during low tide conditions when the substrate is fully exposed. b. Work shall only be conducted during daylight hours.
c. Installation of synthetic main sheet piles (PVC or FRP) wall by Impact hammer are limited to a maximum of 10 piles per day. There is no daily limit for installing synthetic sheet piles (PVC or FRP) wall by vibratory hammer. d. All work should be conducted in accordance with all the applicable General conditions and In-water Noise from Pile and Sheet Pile Installation outlined in Enclosure 4. Specifically: AP1, AP2, AP6, AP7, AP8, AP9, AP11 (General PDCs) and A1; A2, and B (Pile Installation PDCs).
e. All construction personnel are responsible for observing water-related activities to detect the presence of these species and avoid them.

2. Permits and Authorizations

a. In addition to the procedures outlined in this appendix, the contractor shall comply with all terms and provisions of the Government Furnished Permits outlined in Division 1 Specification 01 31 00 PROJECT MANAGEMENT AND COORDINATION, Paragraph 1.9 B.
b. If compliance with the procedures in Appendix C conflicts with any terms or conditions of the Government Furnished Permits, the Contractor shall refer the provisions to the Contracting Officer for direction before proceeding. 3.

Wetland Protection Measures
a. The Contractor shall identify and avoid wetlands within the project area and adjacent to the project area as shown on the contract drawings, permit plans,

and environmental compliance documents. The Contactor shall instruct all personnel associated with the project of the presence of wetlands if the