ML25077A097
| ML25077A097 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 03/20/2025 |
| From: | Constellation Energy Generation |
| To: | Office of Nuclear Material Safety and Safeguards |
| References | |
| Download: ML25077A097 (1) | |
Text
Crane Clean Energy Center Environmental Presentation March 20, 2025
Introductions
- Constellation
- Allison Stalker - Principal Environmental Specialist, Crane Restart
- Zigmund Karpa - Director, Environmental Programs
- Jim Barstow - Director, Corporate Licensing
- Craig Smith - Senior Manager Regulatory Assurance, Crane Clean Energy Center
- Dennis Moore - Senior Manager, Corporate Licensing
- Deb Musser - Manager Environmental Programs, Corporate Environmental
- Jason Zorn, Associate General Counsel
- Alyssa Hockaday - Environmental Specialist, Crane Restart
- Hannah Pell - Regulatory Specialist, Crane Clean Energy Center 1
- Meeting Purpose/Goal
- Plant Overview
- Current Plant Status
- Planned Restart Activities
- Station Aerial
- Vicinity Map
- Current Status of the Site Major Environmental Permits and Operations
- Current Operations
- Path Forward
- Permit Timeline Agenda 2
Purpose:
- Provide overview of site
- Discuss a path forward for NRC NEPA review
- Discuss the timeline for restart and environmental permit reestablishment
- Goal: Gain understanding and NRC feedback on process for NRCs NEPA review Meeting Purpose and Goal 3
Overview 4
Three Mile Island, Unit 1 commenced commercial operation in 1974 License renewal granted in October 2009 with the current Operating License expiring in 2034 Due to market conditions, reactor shut down for retirement on September 20, 2019 On September 20, 2024, Constellation announced our intention to restore Three Mile Island, Unit 1 to commercial service and have signed a 20-year power purchase agreement (PPA) with Microsoft
Will rename to Crane Clean Energy Center On October 25, 2024, Constellation presented the Crane Clean Energy Center restart overview and regulatory path On November 19, 2024, Constellation submitted its request for exemption from 10 CFR 50.82(a)(2), officially notifying NRC of Constellations intention to return Crane Clean Energy Center to power operation
- All spent fuel transferred to Independent Spent Fuel Storage Installation (ISFSI)
- Spent fuel pool is drained with cover in place
- Major systems status:
Most major plant systems have been drained and deenergized
No major plant components have been removed
Reactor coolant system status
- Loops drained and vented
- Reactor vessel filled with water covering internals
- Reactor vessel head installed
Once Through Steam Generators placed in long term layup
Main generator placed in long term layup Current Plant Status 5
- Plant will be restored to condition at 2019 shutdown, to the extent possible
- No major demolition activities or new building construction anticipated
- Known plant modifications
- B Natural Draft Cooling Tower
- Reactor Building industrial coolers
- North Bridge repairs
- Underground diesel fuel oil storage tank Planned Restart Activities 6
Station Aerial 7
- Crane is owned and operated by Constellation, the licensee.
- The Crane site is approximately 472 acres, located on Three Mile Island, which is situated in the Susquehanna River, in Londonderry Township of Dauphin County, Pennsylvania.
- Constellation owns the entire island except Unit-2 facilities and the footprint beneath these facilities.
Vicinity (6-Mile) Map 8
Crane Clean Energy Center
- National Pollutant Discharge Elimination System (NPDES)
- CEG is currently operating under an administratively extended NPDES permit.
- Susquehanna River Basin Commission (SRBC) Docket
- CEG is currently operating under SRBC Docket No. 20221203.
- Clean Water Act (CWA) 401 Certification
- Pennsylvania Synthetic Minor Air Operating Permit
- Pennsylvania Drinking Water Permits
- CEG is currently operating under a drinking water permit for the site.
- Groundwater Use
- Cooling Water System
- Independent Spent Fuel Storage Installation (ISFSI)
Current Status of the Site Major Environmental Permits and Operations 9
- Environmentally related equipment in operation
- Two river water pumps for dilution flow
- Motor and diesel driven river water fire pumps
- Industrial waste treatment system - non-radioactive liquid waste disposal (sump water in-leakage)
- Industrial and domestic water wells
- Auxiliary Building ventilation - monitored release path Current Operations 10
- Understand NRC has responsibilities under NEPA to prepare an Environmental Assessment for this restart action
- Constellation Environmental Lead will coordinate with the NRC Environmental PM and may request use of the audit process during preparation of the Environmental Report to ensure it addresses the NRC requirements.
- Constellation will voluntarily submit an Environmental Report that focuses on restart activities subject to NEPA review, targeted for October 2025.
- Constellation will support both virtual and on-site audits for the Environmental Assessment preparation.
- Constellation will work with NRC to determine final steps for approval. It is anticipated that:
- If justified, a final Environmental Assessment and Finding of No Significant Impact (FONSI) will be issued within 12 months of acceptance of the ER.
Path Forward 11
Environmental Report and Permit Timeline 12 Q4 2024 Q1 2025 Q2 2025 Q3 2025 Q4 2025 Q1 2026 Q2 2026 Q3 2026 Q4 2026 Q1 2027 Q2 2027 Public Announcement - 9/20/2024 Present Regulatory Path to NRC-10/25/2024 Submit 50.82 Exemption Request - 11/19/2024 Submit Operational Readiness Letter Return to ORLB Environmental Report Preparation NRC ER Review, Environmental Audit, and EA Preparation NPDES Permit Renewal Application Submittal SRBC Docket Renewal Application Submittal Air Permit Renewal Application Submittal Drinking Water Permit Application Submittal Clean Water Act 401 Certification Application Submittal Submission of Constellation Related Licensing Actions NRC Review and Approval of Licensing Actions Obtain Final EA/FONSI and Renewed Environmental Permits Submit Environmental Report (as determined)
NRC Pre-Submittal Meeting
Discussion/Questions 13