(M) NEPA EV Checklist B141 Generator

NEPA ENVIRONMENTAL CHECKLIST – SUBASENLON

NEW FORM EFFECTIVE 03/20/2025. The PWD Environmental Division (EV) uses this NEPA Environmental Checklist (EC) to determine the environmental requirements associated with a proposed project. Complete the first 2 pages of the form, attach a site map and a SOW or 1391, and then submit to EV. Submit the complete EC with required attachments a minimum of 15 days prior to a project’s scheduled start date. If there are modifications to the project scope or if work has not been initiated within 1 year of the signature date, please contact EV for review/approval prior to initiating the project.

GENERAL PROJECT INFORMATION

1 Activity Requesting:

NAVFAC MIDLANT ROICC New London

2 Activity POC / Phone / email:

John Papitto, 860-694-4914, [email protected]

3 Name of Project:

B141 Replace Emergency Diesel Generator

4 Project Number (if any):

eProjects # 1904124

5 Project Location:

NAVSUBASE NEW LONDON CT

6 Project Type:

Design Bid Build

7 Description of the Project:

8 Why is this project needed?

This project will replace the existing pad-mounted generator and associated above ground diesel fuel storage with a larger capacity to provide additional emergency power to the Genesis Chamber equipment. Additionally, new receptacles, connected to emergency power, will be provided for general use within the Genesis Chamber, as well as a duplex receptacle on the 2nd/3rd floor B156 connector corridor to support emergency power to a refrigerator. The emergency distribution will be upgraded including a new automatic transfer switch, emergency distribution panel, and transformer. Work includes removals and sealing of new penetrations through existing exterior walls, interior walls, floors, foundation walls, and ceilings. A portable trailer mounted generator will be provided to support operations during the construction period. The existing generator manufacturer was unable to confirm whether asbestos was used in the internal components, so it will be assumed to contain ACM. Lead paint was identified. No PCB-containing materials were identified. Work also includes removal of existing and provision of new ductbank, feeders and concrete pad.
The NSMRL’s Genesis Chamber has limited backup power to support the usage of equipment upon loss of normal power.

9 Date project scheduled to begin? FY27

PLANNING QUESTIONS

10a

Total Project Area (sq. ft.) - (Include clear zones, soil disruption/disturbance area, lay down areas, etc)

Majority of work is bldg. interior. The exterior