Project No.: 0172.09.038.070 Page 1 of 1 Project Name: Shale Gas

TELEPHONE CALL RECORD Incoming Outgoing Date: 9/26/11 Time: 3:20 am pm 

### CBI? Yes No
Company Name: Intevras & Layne Water Technologies ERG Staff Name: Brent Ruminski
Contact Name: Andy Adams Contact Phone Number: 817-676-8227 General Subject: EVRAS Evaporation Technology



### TOPICS DISCUSSED AND ACTION TAKEN
I called Andy Adams from Layne Water Technologies at 3:20 PM on 9/26/11. Andy answered and was willing to share as much information as he is able to at a different time. We made a tentativ e 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 on 9/27/11 at 12:30. He provided me with the following information.

 It is generally deployed for reduci ng wastewater volumes that would ot herwise be inject ed for disposal. Installations of the EVRAS system are nationwide. Marcellus was mentioned specifically but no others.

 The general operation involves using waste heat to raise the energy of the oil. The heated oil is circulated into a heat exchanger, where it transf ers heat to the influent wastewater. The warm wastewater is routed to the top of the evaporation column it evaporator s or falls back down to pit where it either crystallizes or exits as a concentrate stream.

 Waste heat sources include compressors or exhaust. However, the unit can incorporate a gas burner if no waste heat is available. Vendor al so indicated that operators have trucked or piped the water to the unit in the case that the waste heat source is not locat ed directly on site. Howe ver, operators try not to do centrally located treatment but the EVRAS can be designed for such permanent structures with increased capacity.

 Unit operates at about 200 bpd in winter and 450 bpd in summer due to ambient temperature

 Only limitation of feed quality is Iron because it is an oxidizer. Did not have specific upper limits.

 The unit is skid mounted and requires two separate trailers to be mobilized.

 If the unit is utilizing waste heat, the only energy usage is for pumps a nd fans which totals to 30 kW per day at average operation of 300-350 bpd. Vendor did not report energy consumption if waste heat is not available.
Vendor said he would respond with some more detailed documents that ca n provide costs, energy usage, and data from the field. He did not specif y if he could find case studies or not.
At 2:50 Andy Adams called back. Said he will be sending a drop box with a bunch of information on EVRAS as well as other technologies that the company offers. He also started talk ing about the oil and gas industry in general. He described how he has worked with two di fferent well operators in the same general region. When asking them what the reuse criteria is for the treated wastewater he indicated th at the two operators give significantly different ranges. He generalized TDS criteria for reuse as 20,000 to 30,000 mg/L but different operators may have a different range.

Need to return call by / at/between and

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