(B) NEPA.pdf

NEPA ENVIRONMENTAL CHECKLIST – SUBASENLON

NEW FORM EFFECTIVE 07/10/2020. 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: FEAD New London

2 Activity POC / Phone / email: Andrew Orr / 860.694.4560 / Andrew.g.orr@navy.mil

3 Name of Project: B533 Cooling Tower Replacement

4 Project Number (if any): 1690300

5 Project Location: B533

6 Project Type: Design Build

7 Description of the Project:

Base Bid: Provide and commission new closed circuit evaporative coolers (CCEC), condenser pumps, building circulation pumps, chemical-free condenser water treatment and bypass valves/piping at each floor loop for B533. Re-balance the entire chilled water piping system.

Option #1: Demolish oversized/non-functional closed circuit evaporative coolers CCEC-3 and CCEC-4.

8 Why is this project needed?

Equipment failure / End of useful life.

9 When project scheduled to begin? October 2021

PLANNING QUESTIONS

10a Total Project Area (sq. ft.) - (Include clear zones, soil disruption/disturbance area, lay down areas, etc) 4,500 SF

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) 0%

11 How will Stormwater be managed in the long-term (post-construction)? No stormwater impact from this project.

12 How will Sanitary Sewage (wastewater) be managed in the long-term? No wastewater impact from this project.

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?

16 Will emission-generating equipment (e.g. bull dozer, back hoe, etc.) be utilized during construction? Project will require a crane to remove/install equipment.

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

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

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

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?

DESIGN RELATED QUESTIONS YES NO UNSURE

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

New cooling tower will use existing connections to potable water.

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.

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

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

(e. g. freon, halon)?

Refrigerants will not be removed/installed. However, the condenser water loop contains glycol.

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?

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

ADDITIONAL COMMENTS

Type here:

SAME 6/16/2021

Checklist Preparer, phone number and e-mail (if Same as Question #2 – Type “SAME”) 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: B533 Cooling Tower Replacement

Project Number: 1690300

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 Coastal Consistency Determination (CCD) is required. 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 Refer to Comment 2. This process takes a week.

Installation Restoration Land-use controls exist or Consultation w/ EPA required 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. 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. Refer to Requirs 1 and 2. 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 gal 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 PW NLON EV Division shall be notified immediately of any actions that require dewatering activities under the scope of this project, including drain-down of any water piping and equipment. Discharge to ground and/or stormwater system is prohibited. Approved discharges to sanitary are subject to the General Permit for the Discharge of Wastewaters from Significant Industrial Users (SIU GP). No discharge shall occur without prior approval from the PW NLON EV Division Wastewater Program Manager (x2525). The contractor may be required to obtain separate permitting and provide monitoring data prior to discharge.

Requir 2 Discharges from the cooling towers at B533 are currently permitted under the Comprehensive Discharges to Surface Water and Groundwater General Permit (COMP GP). All discharges resulting from changes, replacement, modifications, etc., to these cooling towers shall comply with the discharge limits of the COMP GP. As the preferred alternative, PWD EV recommends that this project include rerouting the discharge location to the sanitary sewer and re-permitting under the Significant Industrial Users General Permit (SIU GP). Discharge limits are less stringent under the SIU GP.

Requir 3 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 4 A list of HAZMAT scheduled for use or installation on the project and the approximate quantities/volumes of these materials shall be submitted to the PW NLON EV Division EPCRA Manager (x5140) prior to initiating project activities.

Requir 5 A backflow prevention device shall be required for any connections to potable water lines. All work involving the testing and certification of backflow prevention devices or surveys for cross-connections in the water distribution system shall be done in accordance with DoD and Navy regulations and policies, CT Department of Public Health (CTDPH) requirements, and American Water Works Association standards and practices. Information shall be provided to the PW NLON EV Division Drinking Water Manager (x5140) regarding the testing performed on any such devices and the CTDPH-certifications of the person(s) performing these tests.

Requir 6 Appropriate disinfection procedures shall be performed in association with any work conducted on the fresh water supply lines in accordance with Section 19-13-B47 of the CTDPH regulations. This work shall be done using established procedures accepted by the American Water Works Association and copies of all test results confirming the successful completion of disinfection procedures shall be forwarded to the PW NLON EV Division Drinking Water Manager (x5140).

Requir 7 Disposal of any regulated waste shall be coordinated in advance with the PW NLON Hazardous Waste Program Office (x4298).

- 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.

- Any 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.

Requir 8 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.

LCDR Christopher Sandmel; x4480;

christopher.sandmel@navy.mil

Environmental POC; phone number and email Signature and Date

SANDMEL.CHRISTOPH

ER.ADAM.1266626238

Digitally signed by

SANDMEL.CHRISTOPHER.ADAM.1266626238

Date: 2021.07.26 11:59:26 -04'00'

RECORD OF CATEGORICAL EXCLUSION

Ser N45 8 July 2021

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 533 – Cooling Tower Replacement.

Action Proponent: T.D. Moore, Commanding Officer, Naval Submarine Base New London, Groton, CT.

Description of Proposed Action: The proposed action is to replace the closed circuit evaporative coolers (CCEC), condenser pumps, building circulation pumps, chemical-free condenser water treatment and bypass valves/piping at each floor loop for Building 533 and to rebalance the entire chilled water piping system. The contract includes an option to demolish two oversized/non-functional CCECs.

Applicable Categorical Exclusion: The action proponent has determined that the following Categorical Exclusion 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: The proposed action will replace failed equipment and equipment that has reached the end of its useful life. The proposed action may also include the removal of non-functional equipment from Building 533.

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

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

SANDMEL.CHRISTOPH

ER.ADAM.1266626238

Digitally signed by

SANDMEL.CHRISTOPHER.ADAM.126662

Date: 2021.07.26 12:00:36 -04'00'