Regarding Extended Power Uprate License Amendment Request

Renewed Facility Operating License No. NPF-1 6 and revise the St. Lucie Unit 2 Technical Specifications (TS). The proposed amendment will increase the unit's licensed core thermal power level from 2700 megawatts thermal (MWt) to 3020 MWt and revise the Renewed Facility Operating License and TS to support operation at this increased core thermal power level. This represents an approximate increase of 11.85 % and is therefore considered an Extended Power Uprate (EPU). By email from the NRC Project Manager dated September 6, 2011 [Reference 2], additional information was requested by the NRC staff in the Reactor Systems Branch (SRXB) to support their review of the EPU License Amendment Request (LAR). The draft request for additional information (RAI) identified four questions. The response to these RAIs is provided in Attachment 1 to this letter. In accordance with 10 CFR 50.91 (b)(1), a copy of this letter is being forwarded to the designated State of Florida official