From: Thomas Finseth

To: Phil Farina ; Mark J. Kropilak Esq. ; John Taylor

Cc: Flanders, Phillip ; Jordan, Ronald ; Alicea, Jezebele ; Deborah Bartram ; Elizabeth Gentile ; Anna Dimling

Subject: EPA Cost Request for Liberty Hydro"s ZVI FGD Wastewater Treatment System

Date: Wednesday, October 15, 2014 3:50:52 PM

Attachments: Liberty Hydro Attachment 1_10152014.docx

Liberty Hydro Attachment 2_10152014.docx

Mark/Phil/John,

Thank you for meeting with the EPA and ERG regarding Liberty Hydro’s zero valent iron (ZVI) FGD

wastewater treatment technology. Additionally, EPA appreciates the supplemental information

regarding the operation and the general costs for the system. The information that you provided

gave us a general idea of the capital and operation and maintenance (O&M) costs for a 350 gpm

FGD wastewater treatment system. However, for EPA to more fully evaluate your technology, more

specific cost estimates are required, including an indication of how costs would change for scrubber

purge flow rates of 100 gpm and 800 gpm. EPA is requesting Liberty Hydro to provide additional cost

information by October 30, 2014. If confidentiality is a concern, EPA would be able to keep any or all

of your information confidential and only use it internally.

EPA has provided Liberty Hydro with two attachments explaining assumptions that can be made to

help design the system used for the cost estimate and requesting cost and design information on

Liberty Hydro’s FGD treatment system.

· Attachment 1: Definition of Model Facility and FGD Wastewater Treatment Technologies

–

Contains EPA’s “model” plant characteristics, FGD scrubber purge wastewater

characteristics, FGD scrubber purge typical operating conditions, and FGD wastewater

treatment technologies used for EPA’s technology bases

· Attachment 2: Request for Treatment Information and Costs

– Contains table with capital

and operating cost breakout for Liberty Hydro to provide cost estimates and several

questions about the design of each part of the Liberty Hydro “treatment train”

We would appreciate your feedback and thank you in advance for your time. We also intend to

follow up with you within the next week.

Sincerely,

TJ Finseth

ERG

14555 Avion Parkway, Suite 200

Chantilly, VA 20151

(703) 633-1698 (phone)

(703) 263-7479 (fax)

thomas.finseth@erg.comFrom: pfarina4@gmail.com [mailto:pfarina4@gmail.com] On Behalf Of Phil Farina

Sent: Monday, September 29, 2014 2:47 PM

To: Jordan, Ronald

Cc: Flanders, Phillip; Matuszko, Jan; Thomas Finseth; Hall, Jessica; Sharon Demeo; Mark J. Kropilak

Esq.; John Taylor

Subject: Re: ZVI technology for Se control (Mtg with Liberty Hydro)



### We wanted to thank you all once again for your courtesy in visiting with the Liberty

Hydro team last week. I have attached for your consideration some of the information

you requested including a description of the technology, pilot plant installations and

cost estimates.

If you have any further needs please do not hesitate to contact me directly. I would

like to contact you in 2 weeks to schedule further discussions.

We look forward to working with you in meeting your clean water goals.

Phil Farina

Sales Executive

Liberty Hydro

Phil.farina@libertyhydro.com

419-346-8848

On Thu, Sep 18, 2014 at 11:30 AM, Jordan, Ronald < Jordan.Ronald@epa.gov > wrote: