(I) NEPA.pdf

NEPA ENVIRONMENTAL CHECKLIST – SUBASENLON

NEW FORM EFFECTIVE 12/10/2019. This NEPA Environmental Checklist (EC) is used 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 the PWD Environmental Division (EV). A complete EC with required attachments should be submitted a minimum of 15 days prior to project’s scheduled start date. If the project scope is modified or if project work has not been initiated within 1 year of the signature date, please contact EV for review/approval prior to initiating project activities.

GENERAL PROJECT INFORMATION

1 Activity Requesting: NAVFAC – FEAD/PWD

2 Activity POC / Phone / email: Cameron Levitre / 860-694-4572 / cameron.j.levitre.civ@us.navy.mil

3 Name of Project: B564 Install Permanent Generator

4 Project Number (if any): 1733451

5 Project Location: B564

6 Project Type: Repair

7 Description of the Project: Installation of permanent emergency generator

8 Why is this project needed? It is needed to support the operation of B564 during loss of power

9 When project scheduled to begin? April 2024

PLANNING QUESTIONS

10a Total Project Area (sq. ft.) - (Include clear zones, soil disruption/disturbance area, lay down areas, etc) 1500 sq ft

10b Percentage of Project Area - that is currently Impervious (asphalt, bldgs, etc.) 100%

10c Percentage of Project Area - that will be Impervious once project completed 100%

10d Percentage of Project Area - that will be disturbed (excavated, graded, etc) 50%

11 How will Stormwater be managed in the long-term (post-construction)? Continue to use existing storm water management system

12 How will Sanitary Sewage (wastewater) be managed in the long-term? No change

13 Will there be actions conducted in the water (dredging, new pilings, removal etc.)? If so indicate state what action(s). No

14 Will there be actions conducted in an area under an Agriculture outlease? No

DESIGN RELATED QUESTIONS YES NO UNSURE

15 Will trees be removed?

Will emission-generating equipment (e.g. bull dozer, back hoe, etc.) be utilized during construction? A back hoe will be used in the construction to excavate the site for the generator’s foundation

17 Will the project remove, install or utilize a petroleum storage tank, that is >=55-gallons?

A diesel tank will be installed on site exceeding 55-gallons

18 Will the project remove or install an Oil Water Separator?

Will the project relocate excavated material at the Installation? If yes where is it going?

Material that is excavated at this location will be moved off site and disposed of by the contracted firm

Will the construction / repair actions generate by-products (power washing water, haz. waste, state regulated waste such as asbestos, PCB items, transformers, capacitors, switches, light ballasts, lead paint chips, florescent bulbs, waste oil, solvents, etc)? If so indicate what type of waste(s) will be generated.

21 Will the construction / repair actions require de-watering from excavations, trenches or manholes? If yes, circle where de-watering will occur?

mailto:cameron.j.levitre.civ@us.navy.mil

DESIGN RELATED QUESTIONS YES NO UNSURE

22 Will there be new hard pipe connections or modifications to existing hard pipe connections using water from Groton Utilities, the Thames, or wells?

Will new hard pipe connections or modifications to existing hard pipe connections discharge wastewater to the sanitary sewer, storm sewer or the Thames River? If so circle discharge type.

Will there be UST or AST installation, modification, or removal? If so indicate which type of tank and which action.

Day Tank for Permanent Generator will be installed and another tank from the existing temporary generator may be removed

25 Will there be installation, repair, modification or removal of any system containing refrigerants

(e. g. freon, halon)?

26 Will there be modifications, destruction, or disturbance of the shoreline, streams, groundwater tables, surface water bodies, or wetlands? If so, explain.

Will there be any excavation and/or dewatering with the potential to impact the designated CT Coastal Zone (i.e., 1,000 feet inland from the MHW line)? If so, what type of activity will occur that can potentially impact the coastal zone area?

28 New proposed use and/or application of pesticides, rodenticides and herbicides? If so, indicate which type.

29 Will the project require pile driving?

OPERATIONAL RELATED QUESTIONS YES NO UNSURE

30 Will emission-generating equipment be installed (ex. paint booth, emergency generators)? If so, what type of equipment will be installed? Permanent Emergency Generator

31 Will there be any new processes or maintenance activities conducted? If so, describe what they are. Occasional Generator Maintenance

ADDITIONAL COMMENTS

Type here:

SAME 1/23/2023

Checklist Preparer, phone number and e-mail Date

NEPA ENVIRONMENTAL CHECKLIST – SUBASENLON

SUMMARY OF ENVIRONMENTAL REQUIREMENTS

(To Be Completed by Environmental Division Only) PLEASE NOTE: The Environmental review provided is only valid for 1 year. If the project scope has been modified or checklist has expired, please contact the SUBASENLON PW Environmental Division to re-evaluate the project.

Name of Project: B564 Install Permanent Generator

Project Number: 1733451

PLANNING REQUIREMENTS (Issues That Can Effect the Project’s Timeline, Cost, or Site Location) Environmental Aspect YES NO Environmental Requirement Project Impacts

National Env Policy Act (NEPA) CATEX CATEX = 1 week; EA = 12 months; EIS = 24 months Can’t award till NEPA complete

Threatened or Endangered Species Consultation with USFWS and/or NMFS required. Process may take 6 months

Marine Mammal Protection Act IHA or LOA Consultation with NMFS May take 4 to 18 months

Wetland Impacts Permits and possibly mitigation required. May take 7 months after

NEPA

Navigable Water Impacts Permits required. Takes 2-7 months after

NEPA

Agriculture Outlease Consultations with NAVFAC Real Estate required. Process may take 1 to 3 months.

Tree Mitigation Compensation for tree loss or mitigation is required. This may add costs to project.

Coastal Zone Mgmt Act Refer to Requir 1. Process takes 90 days.

Cultural Resources Consultations with SHPO required Process may take 1 to 6 months

Major Air Emission Source Permit is required. Process takes 6 months

Construction Emissions Air Conformity Record of Non-Applicability is required. Refer to Comment 2. This process takes a week.

Installation Restoration Refer to Requir 2. Process may take 4 months

Petroleum Contamination Follow guidance in CNRMA POL SOP. This may add costs to project.

DESIGN REQUIREMENTS (Issues To Be Addressed In Design Phase) Storm Water Best Mgmt

Practices, Erosion & Sediment Control

Required for projects that include excavation or other land disturbance. Refer to Requir 3. Incorporate into the design.

CT Storm Water Mgmt Permit Required for projects that will disturb ≥ 1 acre of land. Obtain before construction.

De-watering, Wastewater Mgmt Protective measures required for managing excess waters. Incorporate into the design.

Beach & Dune Management Protective measures required for impact beaches & dunes Incorporate into the design.

Spill Preventative Measures Secondary containment required for tanks ≥ 55 gal.

Refer to Requir 4. Incorporate into the design.

OPERATIONAL REQUIREMENTS (Issues To Be Addressed Prior To Use)

New Industrial Process Environmental Department Site Inspection required. Required before operation.

New Waste Generating Activity Environmental Department Site Inspection required. Required before operation.

ADDITIONAL REQUIREMENTS or COMMENTS Comment 1 The proposed action is within the scope of CATEX #14: Alterations of and additions to existing buildings, facilities, and systems (e.g., structures, roads, runways, vessels, aircraft, or equipment) when the environmental effects will remain the substantially the same and the use is consistent with applicable regulations. None of the exclusions from reliance on a CATEX applies in this case. A Record of Categorical Exclusion is required, but further NEPA analysis is not warranted. The applicability of this CATEX determination is based on the full implementation of all environmental requirements identified below.

Comment 2 A Record of Non-Applicability was completed to document compliance with the General Conformity Rule, Section 176(c) of the Clean Air Act. The proposed action is exempted from a conformity analysis as the emissions will not exceed the de minimis ozone threshold level and the emissions are not considered regionally significant.

Requir 1 Work at Building 564 occurs in the coastal zone; however, a Coastal Consistency Determination is not required provided that no deleterious material enters storm drains, manholes, or the Thames River.

Requir 2 Work will occur adjacent to IR Zone 4. A dig permit shall be obtained from and approved by the PWD prior to initiation of any ground-disturbing activities.

- Soil management procedures as detailed in the dig permit and the SUBASE Soil Management SOP shall be followed. Soil that cannot be returned to its original location may need to be disposed of off-base at the contractor's expense.

- Oil or other contaminated groundwater may be encountered during excavation activities. Groundwater from an IR zone/site shall not be discharged to ground. Groundwater may need to be containerized and disposed of off-site at the contractor’s expense.

Requir 3 Work shall be executed in full compliance with the provisions of the General Permit for the Discharge of Stormwater from Small Municipal Separate Storm Sewer Systems (MS4 Permit), the SUBASENLON Stormwater Pollution Prevention Plan, and the SUBASENLON Stormwater Management Plan. Appropriate erosion and sediment control measures shall be used when performing work under the scope of this project.

Requir 4 All storage tanks holding petroleum products, >55 gallons, must meet the requirements of 40 CFR 112, NFPA 20, 30, 30A, and 31. Tank specifications shall be provided to the PW NLON EV Division Tank Program Manager (x5133) prior to installation.

Requir 5 Information regarding the new generator shall be submitted to the PW NLON EV Division Air Program Manager (x5192) prior to purchase. Permitting of new emission sources, reporting, and/or monitoring requirements may apply.

Requir 6 PW NLON EV Division Air Program Manager (x5192) shall require copies of the proposed generator’s EPA Emissions Certificate and the manufacturer’s specified emission factors prior to installation. Emissions shall comply with all State and Federal limits.

Requir 7 The SUBASENLON Fire Department (860-694-3333) shall be notified immediately of any spill to the environment.

Spills shall also be reported in accordance with federal, state, and Navy spill reporting requirements and with the latest procedures enforced by SUBASENLON and the PW NLON EV Division. Clean-up actions are the responsibility of the contractor. If reporting to the State or the NRC is required, the contractor is responsible for completing verbal and written notifications. Copies of any CT DEEP- or NRC-required spill reports shall be submitted to the PW NLON EV Division within 24 hours of any spill.

Requir 8 PW NLON EV Division shall be notified immediately of any actions that require dewatering activities under the scope of this project. No discharges shall occur without prior approval from the PW NLON EV Division Wastewater Program Manager (x2525). Dewatering is NOT authorized for discharge to ground in IR sites. Wastewater may need to be containerized and disposed of off-site or may be eligible for discharge to the sanitary sewer or stormwater, pending CT DEEP approval. The contractor shall obtain separate permitting and provide monitoring data prior to discharge and is responsible for all monitoring and reporting in accordance with CT DEEP requirements.

Requir 9 Existing facility HAZMAT surveys shall be reviewed prior to any facility disturbance. If suspect hazardous materials (such as asbestos and lead paint) are present and are anticipated to be disturbed under the scope of the project, surveys shall be conducted by qualified individuals in advance of construction activity. All survey results shall be provided to the PW NLON EV Division.

Requir 10 Hazardous waste shall not be stored at the project site. Disposal of any regulated waste shall be coordinated in advance with the PW NLON EV Division Hazardous Waste Program Office (x4298).

- All hazardous or regulated waste shall be manifested through the Hazardous Waste Program Office.

- Any hazardous or regulated waste generated under the scope of this project shall be managed, stored, and disposed of in accordance with the SUBASENLON Hazardous Waste Management Plan and SUBASENLON policies and instructions.

- Non-regulated solid waste (i.e., general trash, construction debris, and recyclable items) shall be properly managed and disposed of in accordance with Federal, State, Navy, and local regulations.

Requir 11 Use of exterior storage and laydown areas in support of this project shall be done in compliance with SUBASENLON instructions and policies. Site must be evident of good housekeeping practices consistent with proper storm water management and control.

CDR Christopher Sandmel; x4480;

christopher.a.sandmel.mil@us.navy.mil

Environmental POC; phone number and email Signature and Date mailto:christopher.a.sandmel.mil@us.navy.mil

RECORD OF CATEGORICAL EXCLUSION

Ser N45

1 February 2023

DEPARTMENT OF THE NAVY

Naval Submarine Base New London

NATIONAL ENVIRONMENTAL POLICY ACT OF 1969

ENVIRONMENTAL IMPACT ASSESSMENT

RECORD OF CATEGORICAL EXCLUSION

This document memorializes the determination of the below-named action proponent, as per Chief of Naval Operations Instruction M-5090.1, Chapter 10, that neither an Environmental Assessment nor Environmental Impact Statement need be prepared for the following proposed action: Building 564 Install Permanent Generator.

Action Proponent: Kenneth M. Curtin, Jr, Commanding Officer, Naval Submarine Base New London (SUBASENLON), Groton, CT.

Description of Proposed Action: This project involves installation of a permanent emergency generator at Building 564.

Work activities include the construction of a concrete pad with mounting points, installation of new conduit and cabling, and acquisition and installation of a new emergency generator that is sized to meet Building 564’s emergency standby power requirements.

Applicable Categorical Exclusion: The action proponent has determined that the following Categorical Exclusion (CATEX) is applicable to the proposed action: CATEX #14 – Alterations of and additions to existing buildings, facilities, and systems (e.g., structures, roads, runways, vessels, aircraft, or equipment) when the environmental effects will remain the substantially the same and the use is consistent with applicable regulations.

Facts Supporting Categorical Exclusion: This project is to install a permanent emergency generator to meet Building 564’s emergency standby power requirements. This project is needed to support the operation of B564 during loss of power.

The proposed action may be categorically excluded because it is not of a kind likely to significantly affect the quality of the human environment; does not result in any significant change from conditions existing at the site of the proposed action; and will result in effects that are primarily economic or social.

RECORD OF CATEGORICAL EXCLUSION

Consideration of Circumstances Precluding Categorical Exclusion:

A proposed action shall not be categorically excluded if it:

(1). Would adversely affect public health or safety;

(2). Involves effects on the human environment that are highly uncertain, involve unique or unknown risks, or which are scientifically controversial;

(3). Establishes precedents or make decisions in principle for future actions that have the potential for significant impacts;

(4). Threatens a violation of Federal, State, or local environmental laws applicable to the Department of the Navy; or

(5). Involves an action that, as determined in coordination with the appropriate resource agency, may:

a) Have an adverse effect on Federally-listed endangered/threatened species or marine mammals;

b) Have an adverse effect on coral reefs or on Federally-designated wilderness areas, wildlife refuges, marine sanctuaries, or parklands;

c) Adversely affect the size, function, or biological value of wetlands, and is not covered by a Nation-wide or Regional permit;

d) Have an adverse effect on archaeological resources, or resources (including but not limited to ships, aircraft, vessels and equipment) listed or determined eligible for listing on the National Register of Historic Places; or

e) Result in an uncontrolled or unpermitted release of hazardous substances or require a conformity determination under standards of the Clean Air Act General Conformity Rule.

None of the foregoing conditions are present in this case.

Retention: This document shall be retained for a period of not less than 6 years.

CHRISTOPHER SANDMEL

Commander, U.S. Navy Public Works Officer By direction