Need to return call by / at/between and . Signature: ___________________________ Project No.: 0172.07.029.030 DISTRIBUTION

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Project Name: Steam Electric Detailed Study

TELEPHONE CALL RECORD

Outgoing Call Date: 12/3/09 Time: 10:00 am EST

Company Name: Progress Energy’s Asheville Power Plant Contact Name: Shannon Langley

Phone No .: (513-287-2269)

Name: Kurt Blohm Eastern Research Group

GENERAL SUBJECT : Progress Energy’s Asheville Power Plant Flue Gas Desulfurization (FGD) Systems and FGD Wastewater Treatment System

TOPICS DISCUSSED AND ACTION TAKEN

On Thursday, December 3, 2009, I contacted Shannon Langl ey of Progress Energy’s Asheville Power Plant (Asheville). I explained to Mr. Langley that I was cont acting him to collect information regarding the operation of the FGD system and the FGD wastewater treatment syst em at the Asheville plant to inform EPA’s decision on which plants to sample as part of the effluent guide lines rulemaking for the steam electric industry. He said that he would be able to answer some of my questions regarding the FGD wastewater treatment system, but that he may need to refer to others at the pl ant to answer questions he does not know.

Mr. Langley stated that the plant has two generating un its which have a combined capacity of 400 MW. Both generating units exhaust to one limestone forced-oxidati on FGD system. Asheville does not use additives in the FGD system. Mr. Langley stated that no FGD sy stems are planned to be installed in 2010.

Mr. Langley stated that Ashevill e operates SCRs on both units for NO

x control and both SCRs are operated on a year-round basis.

Mr. Langley stated that the FGD wastew ater treatment system consists of a chemical precipitation system for chlorides removal followed by a cons tructed wetlands treatment system (CWTS) for mercury removal. The treatment system is operated continu ously. I asked Mr. Langley about the t ypical flow rate of blowdown to the treatment system, but Mr. Langley stated that he would need to check with someone else.

Mr. Langley provided the following process description of the FGD wastewater tr eatment system: Blowdown from the FGD scrubber enters an equaliz ation tank. The equalization tank efflue nt is transferred to a clarifier. Asheville adds two poly mers (Metclear and another polymer) to the clar ifier. The underflow from the clarifier is sent to a filter press. The overflow from the clarifier is transferred to the equalization basin and diluted with plant service water by a factor of 3: 1 to reduce the chlorides concentrat ion prior to entering the CWTS. The

CWTS has a residence time of several days and discharges to the as h pond where it is commingled with wet sluiced bottom and fly ash. Th e ash pond discharges to the French Broad River.

Mr. Langley stated that the FGD wa stewater treatment system has been optimized primarily for mercury removal; however, the system also achieves incidental re movals of other heavy meta ls, including arsenic and some species of selenium. Asheville is targeting me rcury removal in the system through the use Metclear,Need to return call by / at/between and . Signature: ___________________________ which is specifically designed for mercury removal. Mr . Langley stated that the permit limit for mercury from the ash pond effluent is 0.63 μ g/L.

Mr. Langley stated that the plant has schedul ed outages during early spring and fall 2010.