From: Ling Paul <Paul.Ling@kcpl.com>

To: Thomas.Finseth@erg.com

CC: Tom.Mackin@kcpl.com; Deborah.Bartram@erg.com; Jordan.Ronald@epamail.epa.gov; alicea.jezebele@epa.gov

Date: 1/8/2013 2:21 PM Subject: RE: Draft Iatan Site Visit Notes

Thomas

- The following are responses to comments and edits to your notes. There is no CBI material in the note narrative. Note attac hments 2 and 3 are CBI drawings. Page 1: Iatan receives its coal via train. The plant burns approximately 11,000 tons of coal per day. Iatan stores 70 to 75 days worth of coal on site for Unit 1 and approximately 30 days worth of coal for Unit 2. The coal pile runoff is collected in a holding pond and then disch arged to the Missouri

River.

The dry fly ash and PAC material is pneum atically conveyed from the baghouse hoppers to the fly ash silo for each unit. The plant has the capability to unload the fly ash wet or dry. For wet unloading, the fly ash is conditioned with either service water or the FGD brine from the

treatment syst em for dust control. This fly ash material is transferred to the onsite landfill for disposal. The plant can also unload th e fly ash dry for beneficial reuse. Page 3: The underflow from the thickener is mixed with a polymer and dewatered using a belt fil ter press. The solid waste is trucked to the onsite landfill for disposal. The overflow from the thickener is transferred to the raw water clarifier. Page 5: Iatan operates an onsite landfill, which began operation in January 2009. The landfill has four s tages and the plant is currently filling Stage 1. The landfill has a two foot clay liner, 60 mm HDPE liner, and 12 inches of sand.

The plant collects landfill leachate and runoff in separate collection ponds. The leachate is used for dust suppression con trol on the landfill. The plant has an emergency discharge outfall from the leachate collection pond. Iatan has eight groundwater monitoring wells around the landfill. All of the wells are considered by MDNR to be downgradient

Thanks Paul M. Ling

- PE (K S & MO) Director of Compliance Kansas City Power & Light Company

PO Box 418679 Kansas City, MO 64141

- 9679

E

- mail: paul.ling@kcpl.com<mailto:paul.ling@kcpl.com> Telephone No.: 816

- 556

- 2899

Cell Phone No.: 816

- 810

- 2326

Fax No.: 816

- 556

- 2058

From: Thomas Finseth [mailto:Thomas.Finseth@erg.com] Sent: Tuesday, December 11, 2012 11:00 AM To: Ling Paul; Mackin Tom Cc: alicea.jezebele@epa.gov; Jordan.Ronald@epamail.epa.gov; Deborah Bartram Subject: Draft Iatan Site Visit Notes

Paul/Tom,

Represent atives of the Environmental Protection Agency (EPA) and Eastern Research Group (contractor to EPA) visited Kansas City Power & Light's Iatan Generation Station on April 28, 2010 to gather information for the Agency's rulemaking and identify potential s ampl ing points for its sampling program. The draft site visit notes and associated attachments summarizing the processes observed and the infor mation collected during the site visit are being shipped to Tom (i.e., the plant) via FedEx for delivery Wednesday m orning. Please review these documents paying particular attention to accuracy and any potential confidential business information (CBI) concerns. During the site visit, some of the information was flagged as potential CBI; therefore, when reviewing the n otes, please identify the specific CBI, if any, contained within the

notes.

Please note that there are a few outstanding questions contained within the notes. Specific questions are embedded and highl ighted in the text of

the draft site visit notes. Foll owing receipt of your comments, EPA will finalize the notes for inclusion in the record associated with the proposed revisions to the steam electric effluent guidelines.

EPA requests that you provide comments on the draft site visit notes by January 11, 2 013. If comments are not received by this date, EPA will assume that the notes are accurate and that there are no CBI concerns regarding the information included in the notes. You m ay send your

comments to Jezebele Alicea via e

- mail (if not CBI) at alice a.jezebele@epa.gov<mailto:alicea.jezebele@epa.gov>, or by mail to:

Regular Mail

Jezebele Alicea Engineering & Analysis Division (4303T) 1200 Pennsylvania Ave., NW Washington, DC 20460

Federal Express

Jezebele AliceaEngineering & Analysis Division

EPA We st/Connecting Wing (Rm 6231P) 1301 Constitution Ave., NW Washington, DC 20004

Please feel free to contact Jezebele at (202) 566

- 1755 if you have any questions about the draft site visit notes.

Sincerely,

TJ Finseth

ERG 14555 Avion Parkway, Suite 200 Chantilly, VA 20151 (703) 633

- 1698 (phone) (703) 263

- 7479 (fax) thomas.finseth@erg.com<mailto:thomas.finseth@erg.com>