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___________________________ Project No.: 0172.09. 038.070 Page 1 of 2

Project Name: Shale Gas 

### CBI?

Yes

No TELEPHONE CALL RECOR D

Incoming

Outgoing Date: 9/26/11 Time: 3:20 am

pm

Company Name: Intevras & Layne Water Technologies ERG Staff Name: Brent Ruminski

Contact Name: Andy Adams Contact Phone Number: 817

- 676

- 8227

General Subject: Intevras EVRAS Evaporation Technology



### TOPICS DISCUSSED AND ACTION TAKEN

I called Andy Adams from Layne Wat er Technologies at 3:20 PM on 9/26/ 11. Andy answered and was willing

to share as much information as he wa s able to , but at a different time. We made a tentative appointment to

speak on the phone tomorrow morning. He asked that I send him an email to waadams@laynewater.com with

my contact information and he would be in touch tomorrow.

Andy Adams called me back o n 9/27/11 at 12:30. He provided me with the following information.

General: The general operation of the EVRAS evaporation technology involves using heat to raise the energy

of (heat) the oil. Heat sources include waste heat (i.e., compressors, exhaust) or gas burners, if no waste heat is

available. The heated oil is circulated i nto a heat exchanger, where it transfers heat to the influent wastewater.

The warm wastewater is routed to the top of the evaporation column and it either evaporates or falls back down

to a pit. From there, it either crystallizes or exits as a concentrate stream.

Location: The EVRAS e vaporation technology is generally deployed to reduc e wastewater volumes that would

otherwise be inje cted for disposal. Installations of the EVRAS system are nationwide

. The EVRAS application

in the Marcellus shale was sp ecifically mentioned.

Mobility: The unit can be skid mounted and requires two separate trailers to be mobilized. Andy indicated that

operators have trucked or piped water to an EVRAS unit if their waste heat source is not located directly on site,

but o perators try not to use centrally located treatment . Andy commented that, if the operator requests, the

EVRAS can be designed as a centrally

- located permanent structure that is capable of handling a higher capacity

of wastewater than a typical EVRAS unit

.

Operation: The u nit operates at about 200 bpd in winter and 450 bpd in summer due to ambient temperature s.

The o nly limitation of feed wastewater quality is i ron because it is an oxidizer. Andy d id not have data for

specific upper limits of iron concen trations

.

Energy Usage: If the unit is utilizing waste heat, the only energy usage is for pumps and fans which totals to 30

kW per day at average operation of 300

- 350 bpd. Andy did not report energy consumption totals if waste heat

is not available.

Andy said he would respond via email with some more detailed documents that provide costs, energy usage,

and data from the field.

At 2:50 Andy Adams called me back. Andy s aid he would be sending a drop box with information on EVRAS

as well as other tech nologies that Intervas offers. He also started talking about the oil and gas industry in

general. He described a hypothetical situation where he has worked with two different well operators in theNeed to return call by / at/between and

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___________________________ same general region. When Andy ask ed the well operators what the reuse criteria for the treated wastewater

was, Andy indicated that the two operators give significantly different ranges. Andy approximated that the TDS

concentration criteria for reuse w as 20,000 to 30,000 mg/L for some operators

, but other ope rators may only use

freshwater

.