NRC Reviewing Cracks in Ohio Nuclear Plant's Shield Building

The Davis-Besse Nuclear Power Station is located in Oak Harbor, Ohio, approximately 21 miles southeast of Toledo.

The Nuclear Regulatory Commission announced it has begun a "rigorous review" of FirstEnergy Nuclear Operating Co.'s analysis of cracks found in the shield building at the Davis-Besse Nuclear Power Station, which is located in Oak Harbor, Ohio, about 21 miles southeast of Toledo. FirstNuclear submitted the root cause analysis of shield building cracks Feb. 28 to NRC.

The root cause analysis will be made publicly available online through NRC's ADAMS document database. The commission also schedule a public meeting and issue an inspection report containing its conclusions once the review is complete.

NRC said in addition to reviewing the root cause submittal, it will assess the company's proposed corrective actions and long-term monitoring program of the shield building. Four NRC inspectors have been monitoring FirstNuclear's investigation of the root cause since it started.

The company informed the commission of the problem on Oct. 10, 2011, saying workers discovered cracks in the shield building while the plant was shut down to replace the reactor vessel head. The shield building is a 2.5-foot-thick reinforced concrete building that surrounds a 1.5-inch-thick steel containment vessel enclosing the reactor. Between the two buildings is a 4.5-foot space.

NRC reviewed the cracks after they were discovered and determined they did not pose an imminent safety issue. Before the plant returned to service, however, it issued a Confirmatory Action Letter confirming FirstNuclear's commitment to determine the cause of the cracks by Feb. 28 and to implement long-term measures to ensure the shield building continues to fulfill its safety function.

Download Center

HTML - No Current Item Deck
  • Free Safety Management Software Demo

    IndustrySafe Safety Management Software helps organizations to improve safety by providing a comprehensive toolset of software modules to help businesses identify trouble spots; reduce claims, lost days, OSHA fines; and more.

  • The Top 5 Safety and Technology Trends to Watch

    Get the latest on trends you can expect to hear more about in 2019, including continued growth of mobile safety applications, wearable technology, and smart PPE; autonomous vehicles; pending OSHA recordkeeping rulemaking; and increased adoption of international safety standard, ISO 45001.

  • Analyze Incident Data

    Collect relevant incident data, analyze trends, and generate accurate regulatory reports, including OSHA 300, 300A, and 301 logs, through IndustrySafe’s extensive incident reporting and investigation module.

  • Safety Training 101

    When it comes to safety training, no matter the industry, there are always questions regarding requirements and certifications. We’ve put together a guide on key safety training topics, requirements for certifications, and answers to common training questions.

  • Conduct EHS Inspections and Audits

    Record and manage your organization’s inspection data with IndustrySafe’s Inspections module. IndustrySafe’s pre-built forms and checklists may be used as is, or can be customized to better suit the needs of your organization.

  • Industry Safe
comments powered by Disqus

OH&S Digital Edition

  • OHS Magazine Digital Edition - January 2019

    January / February 2019

    Featuring:

    • PREVENTING ERRORS
      Production vs. Safety 
    • EMERGENCY SHOWERS & EYEWASH
      Meeting the Requirements for Emergency Equipment
    • CONSTRUCTION SAFETY
      The State of Contractor Safety
    • FOOT PROTECTION
      The Three Keys to Effective Chemical Management
    View This Issue