Frequently Asked Questions2021-10-08T12:50:00-05:00

Frequently Asked Questions

Have a question? Contact us for more information.

Can EWS lower my water disposal costs?2021-09-30T14:43:54-05:00

Yes. In most cases EWS can lower water disposal costs compared to alternatives. Specific pricing is driven by water chemistry and volume. When scoping a project, EWS will perform a lab analysis on the customer’s water sample to determine expected evaporation percentage combined with projected volumes. Please contact us for more information on your project.

What are the ESG benefits of using EWS?2021-09-30T15:38:57-05:00

EWS’s VOX™ technology offers multiple ESG benefits for customers and communities. First, by reducing the number of water-hauling trucks needed, the VOX™ technology reduces transportation-related emissions and traffic thereby also improving road-safety and infrastructure. Second, EWS returns water to the water cycle via evaporation which is critical in areas of water scarcity. Last, through decreased utilization of SWD wells, EWS reduces/eliminates seismicity concerns.

How much water can a VOX™ unit evaporate?2021-09-30T14:42:39-05:00

An individual VOX™ unit can evaporate up to 200 barrels per day. The units are designed to be linked together for higher volume applications, such as during a flowback. Installations of 20-30 units are possible, depending on regulatory limits and spacing. See FAQ below on the upcoming larger volume unit.

What percentage of my water can EWS evaporate?2021-09-30T14:42:02-05:00

The actual evaporation rate depends on water chemistry, and it can range from 20% to over 75%. As a first step, EWS will perform an analysis on the customer’s water sample to determine expected evaporation rate.

Is there a solid-waste stream associated with the VOX™ technology?2021-09-30T14:41:41-05:00

No. EWS carefully calibrates its units for each application to ensure no solids are produced. The water that is not evaporated is discharged as a heavy brine for disposal.

I have heard that other evaporation technologies have struggled to gain regulatory approval. How difficult is it to permit the VOX™ units?2021-09-30T14:40:57-05:00

While regulations and permitting processes differ on a state-by-state basis, the VOX™ technology has been permitted in some of the most restrictive states in the country, and in many cases, under a de minimis scenario. Contact us for specific information about your state.

How does EWS charge for its services?2021-09-30T14:38:17-05:00

EWS charges its customers for the barrels of water actually evaporated, not on the volume of water processed. As such the customer pays for actual performance.

Who is responsible for operating the VOX™ units?2021-10-12T14:27:31-05:00

Currently, EWS operates and maintains the VOX™ units. Our team works closely with our customers’ operations to ensure seamless integration into their water-management program.

What utilities are required for operation of VOX units?2021-09-30T14:37:09-05:00

Power (per unit): 230v, 1 ph, 30 amps; Natural Gas: 2.1 MMBtu/hr (nominal)

What is the footprint of the VOX™ units?2021-10-12T14:27:37-05:00

11.5’ L x 6.5’ W x 12’ H. Each unit will be installed in an EWS supplied containment that is a 9’W x 14’ L.

Does EWS have a larger VOX™ unit for evaporating higher volumes?2021-09-30T14:35:34-05:00

EWS will be introducing a larger VOX™ unit with a targeted maximum evaporation rate of 1,000 barrels a day compared to 200 currently.  When linked together, the new larger VOX™ units will be able to handle high volume flowbacks like those in the Permian Basin.

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