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Project No.: 0172.09.029.041 DISTRIBUTION

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Project Name: Steam Electric Rulemaking

TELEPHONE CALL RECORD

Outgoing Call

Date: 10/13/2011 Time: 10:30 AM

Company Name: Ameren Energy Generating Co (Newton and 

Meredosia Power Plants)

Contact Name: Steve Whitworth

Phone No.: 314-554-4908

Name: Elizabeth Sabol, Eastern Research Group

GENERAL SUBJECT : Newton and Meredosia Power Plant FGMC Systems

TOPICS DISCUSSED AND ACTION TAKEN

I called Mr. Whitworth to discuss the flue gas mercury control (FGMC) systems at the Ameren Energy Newton 

and Meredosia power plants in Illinois. Mr. Whitworth stated that the IL Ameren Newton and Meredosia plants 

installed halogenated actived carbon FGMC systems to comply with the IL state mercury air regulations on 

Units 1 and 2 and the Netwon plant and Unit 3 at the Meredosia plant. Mr. Whitworth also stated that the 

systems at Newton and Meredosia were practically identical systems located at the different plants. 

Mr. Whitworth stated that the facilities receive powdered activated carbon, in compliance with the IL state 

regulation, in bulk and store it on site in silos. The powdered activated carbon is applied to the system using a 

metered system based on the flow of the flue gas (acfm). For every million acfm, the system injects 5 lbs of 

activated carbon upstream of the cold side ESP (and downstream of the air heater). They are currently looking 

at certain plant configurations which allow for activated carbon injection upstream of the air heater to allow for 

more mercury removal. The activated carbon is then removed by the ESP with the fly ash. 

At the Newton facility, there are two different types of systems because Unit-1 has wet and dry fly handling 

systems and Unit 2 has a dry handling system only. The collected fly ash from Unit 1 is sent to POND-1 and 

discharged via outfall 001 or sent to Landfill-1. The collected fly ash from Unit-2 is sent to Landfill-1. The 

facility is unable to sell the fly ash for beneficial re-use because of the high amount of carbon (high filming 

index). Mr. Whitworth stated that most systems are operated wet because of the loss to sell that ash to concrete 

companies (Unit 1 actually has the ability to handle fly ash wet and dry at Newton). Mr. Whitworth also stated 

that Unit 2 at Newton only has dry handling and that they are actually looking into permit regulations to see if 

they can install wet handling because of the decrease in fly ash sales.

At the Meredosia facility, Unit 3 has a wet fly ash handling system. The collected fly ash is sent to POND-1.

Mr. Whitworth stated that there are no other waste streams from the systems rather than the fly ash stream. He 

stated that there is some recent study that they mercury does not leach from the activated carbon and the 

concentration of mercury at their effluent actually went down after the FGMC start up.

Mr. Whitworth will follow-up with me on the plant SCR catalyst wash water. The questionnaire suggests that it 

is from the Coffeen facility, and that due to permit regulations, the catalysts are washed at the Newton site.