NRC Decommissioning Lessons Learned

Search Criteria: Year: 2007 Facility Type: All Facility Types

Stage: All Functional Areas Benefit: All Benefits

Lesson ID: 2007-01 Facility Type: Reactors, Material Facilities Stage: Decommissioning PlanningBenefits: Facilitates Decommissioning WorkSubject: Best practice in executing the license termination plan for the Big Rock Point (BRP) FacilityDiscussion: The BRP license termination plan required that almost all plant structures be removed, including the removal 

This simplified the final status survey (FSS) program, since only soil surveys were required. This limited the irequired, as well as the training required for technicians and staff. The BRP staff was proficient in the proced

implementation requirements

References: Contact Us About Decommissioning of Nuclear Facilities

http://www.nrc.gov/about-nrc/regulatory/decommissioning/contactus.html

Lesson ID: 2007-02 Facility Type: Reactors, Material Facilities Stage: Decommissioning WorkBenefits: Facilitates Decommissioning WorkSubject: Lesson learned with In-Situ Gamma Spectroscopy for land surveys at Big Rock PointDiscussion: Early BRP experience with In-Situ Gamma Spectroscopy for land surveys demonstrated to the BRP staff that 

instrumentation was more sensitive for soil surveys. The BRP staff elected to use proven technology (2x2 soas prescribed in NUREG-1507) for the final status survey program.

References: Contact Us About Decommissioning of Nuclear Facilities

http://www.nrc.gov/about-nrc/regulatory/decommissioning/contactus.html

Monday, September 10, 2007 
Search Criteria: Year: 2007 Facility Type: All Facility Types

Stage: All Functional Areas Benefit: All Benefits

Lesson ID: 2007-03 Facility Type: Reactors, Material Facilities Stage: Decommissioning PlanningBenefits: Facilitates Decommissioning Licensing, Facilitates Decommissioning WorkSubject: Best practice in preparing the procedures for the final status surveys during the decommissioning of the Big Rock Discussion: The BRP FSS procedures were written such that they became the FSS Reports. The procedures required sp

that fulfilled DP requirements for the FSSRs. The completed procedures were copied and submitted as the Fthe submittal of the FSSRs for approval by the NRC staff since the procedures included survey design and fin

References: Contact Us About Decommissioning of Nuclear Facilities

http://www.nrc.gov/about-nrc/regulatory/decommissioning/contactus.html

Lesson ID: 2007-04 Facility Type: Reactors, Material Facilities Stage: Decommissioning WorkBenefits: Facilitates Decommissioning WorkSubject: Best practice during soil excavation at the Big Rock Point FacilityDiscussion: Excavated soils removed during building and foundation removal were consolidated and stored on-site. The 

soil in 6-inch depths to ensure the soil was clean (less than the derived concentration guideline levels) prior to excavations. This resulted in significant cost savings as the native soil was reused and not disposed of as ra

References: Contact Us About Decommissioning of Nuclear Facilities

http://www.nrc.gov/about-nrc/regulatory/decommissioning/contactus.html

Monday, September 10, 2007 
Search Criteria: Year: 2007 Facility Type: All Facility Types

Stage: All Functional Areas Benefit: All Benefits

Lesson ID: 2007-05 Facility Type: Reactors, Material Facilities Stage: Decommissioning PlanningBenefits: Facilitates Decommissioning WorkSubject: Best practice during final status surveys at the Big Rock Point FacilityDiscussion: The BRP final status survey (FSS) procedures included that independent quality assurance measurements b

at the conclusion of the FSS. This resulted in not only the verification of results, but also encouraged the surv

perform comprehensive surveys, which appeared to eliminate human factor errors typically encountered with hand-held survey meters and detectors.

References: Contact Us About Decommissioning of Nuclear Facilities

http://www.nrc.gov/about-nrc/regulatory/decommissioning/contactus.html

Monday, September 10, 2007