>>> Dennis Blauser <dennis@marietta silos.com> 2/12/2013 4:19 PM >>>

Elizabeth you have my permission to re print my email with the silo data.

Sent from my iPhone

Dennis Blauser

CEO Marietta Silos, LLC

2417 Waterford Rd. Marietta, OH 45750 Phone (740) 373-2822

Dennis@mariettasilos.com

WWW.MariettaSilos.com

On Feb 12, 2013, at 12:08 PM, "Elizabeth Sabol" < Elizabeth.Sabol@erg.com > wrote:

Hi Dennis,

Thank you for the information you provided on conc rete silos for EPA's Steam Electric ELG back in October 2011. As we are getting ready to finalize the docket supporting this effort, I would like to request your permission to use th e e-mails below as part of the documentation for the Steam Electric ELG, made available at regulations.gov . When there is an e-mail signature/footer that claims information as c onfidential, EPA cannot in clude it a part of the public docket and handles it as CBI. If you approve, we will simply remove the following footer from the e-mail correspondence and include th is information in the public docket.

Footer language: [CONFIDENTIALITY NOTICE: This message is intended only for the person to whom it is addressed. It may contain confid ential or privileged material. Any unauthorized review, use, disclosure or dist ribution is prohibited. If you are not the intended recipient, please contact the sender by reply or by telephone (740.373.2822) and destroy all copies of the original message and/or attachments.]

Please let me know if you have any questions. Also, if you'd like to contact me directly with any questions, please call 610-344-0829.

Thanks,

Elizabeth

Elizabeth A. Sabol Environmental Engineer Eastern Research Group, Inc. 14555 Avion Parkway, Suite 200 Chantilly, VA 20151 elizabeth.sabol@erg.comPhone:610-344-0829

>>> "Dennis Blauser" < dennis@mariettasilos.com > 10/26/2011 2:50 PM >>>

Elizabeth,

Here is a selection of larger silos for fly as the previously sent to you.

Foundations vary greatly with the silo depending on the local soil conditions. It can be 10% to 50 % of the silo cost. It just depends on the soil conditions, is it a rock foundation where you just need to pour a small mat type foundation or is it on bad soil and you need lots of 100 ft. long piles with a pile cap.

Diameter Height Volume Tons Total 50 150 294,525 4,170 $ 2,724,356.25 56 165 406,397 5,950 $ 3,759,175.73 65 195 647,071 10,000 $ 5,920,703.54 70 210 808,177 12,800 $ 8,041,357.17

Let us know if we can help further.

Dennis A. Blauser

CEO Marietta Silos, LLC

2417 Waterford Rd. Marietta, Ohio USA 45750

Phone 740-373-2822

Fax 740-376-2635

Email dennis@mariettasilos.com Web Pages

www.MariettaSilos.com

www.AskMrSilo.com www.FlyAshSilo.com www.StackingTube.com www.SiloInspection.com www.SiloRepair.com

From: Elizabeth Sabol [ mailto:Elizabeth.Sabol@erg.com ]

Sent: Wednesday, October 26, 2011 10:40 AM

To: Dennis Blauser Subject: RE: Silos Costs - Concrete

Dennis,

Thank you for the information provided. This is a great help. I have two follow up questions for you regarding the data below.1. Do you have an idea of the largest typical concre te silo that would be constructed (in tons of fly ash for 3 days), before downsizing to multiple smaller concrete silos for handling the ash. It is greater than the la rgest size (46' X 132' 2,904 Tons Capacity ) listed in your file. If so, could you provide the cost and size for such a silo.

2. You mentioned that the costs included do not include costs for foundations. Do you have any idea the typical cost or material of cons truction for foundations (capital and O&M).

Please let me know if would be easier to addres s these topics over the phone, my phone number

is 703-633-1659.

Thank you in advance,

Elizabeth

Elizabeth A. Sabol Environmental Engineer Eastern Research Group, Inc. 14555 Avion Parkway, Suite 200 Chantilly, VA 20151 elizabeth.sabol@erg.com

Phone:703-633-1659

>>> "Dennis Blauser" < dennis@mariettasilos.com > 10/21/2011 2:29 PM >>>

Elizabeth,

Please review the attached spreadsheet and see if it answ ers your questions.

Dennis A. Blauser

CEO Marietta Silos, LLC

2417 Waterford Rd. Marietta, Ohio USA 45750

Phone 740-373-2822

Fax 740-376-2635

Email dennis@mariettasilos.com Web Pages

www.MariettaSilos.com

www.AskMrSilo.com www.FlyAshSilo.com www.StackingTube.com www.SiloInspection.com www.SiloRepair.com

From: Elizabeth Sabol [mailto:Elizabeth.Sabol@erg.com]

Sent: Friday, October 21, 2011 10:53 AM

To: dennis@mariettasilos.comCc: Alicea.Jezebele@epa.gov ; jordan.ronald@epa.gov ; Deborah Bartram; Thomas Finseth Subject: Silos Costs – Concrete

Dennis,

Thank you for your time on the phone earlier today. As discussed, EPA is collecting cost data on concrete silos to support the Steam Electric Effl uent Guidelines Rulemaking. This data will be used to estimate the capital and operating a nd maintenance (O&M) costs associated with converting fly ash handling systems from wet to dry.

Specifically, EPA/ERG would like to request capital and O&M (if ap plicable) for concrete silos that correspond the ash t onnages in the attached Excel spreadsheet.

For the costs provided, please also provide a list the materials included in the cost. For example, does the capital cost include only th e cost of the concrete and insta llation of the silo or are there other pieces of equipment that are installed al ong with the silo. In addition, could you please provide a methodology for estimating silo he ight and diameter based on ash tonnage?

Thank you again for your time and consideration.

Elizabeth

Elizabeth A. Sabol Environmental Engineer Eastern Research Group, Inc. 14555 Avion Parkway, Suite 200 Chantilly, VA 20151 elizabeth.sabol@erg.com

Phone:703-633-1659