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Cookie Policy

Cookie Policy and Consent Tool

Last updated: Jul 06, 2026 2:54 PM

We value your privacy very highly. Please read this Cookie Policy carefully before using the https://aestusllc.com/ Website (the “Website”) operated by Aestus LLC, a(n) Limited Liability Company formed in Colorado, United States (“us, we, our”) as this Cookie Policy contains important information regarding our setting of cookies and other tracking technologies, your privacy and how we may use the information that we collect about you. Please also read our Privacy Policy, which provides more information about our privacy practices, your choices and your privacy rights.

What are cookies?

A cookie is a small piece of data sent from a Website and stored on your device by your browser.

Our placement and classification of cookies

This Website sets the cookies identified below. We have classified the cookies that we set by the purpose that they serve.

Essential cookies

Essential cookies are cookies that are essential for you to browse this Website and use its features. For example, these cookies may be used for maintaining security, authenticating users, and preventing fraudulent actions. These cookies are enabled by default, and without them, the Website may not be fully functional. This Website collects the following strictly necessary/essential cookies:

reCAPTCHA

Description

This is a service that checks whether data is entered by a human or by an automated program.

Provider

Google ​Ireland​ Limited

Provenance

Third Party

Purpose

  • Bot Protection
  • Spam prevention
  • Fraud detection

Duration

6 months

gstatic.com

Description

This is a domain used by Google to off-load static content to a different domain name in an effort to reduce bandwidth usage and increase network performance for the end user.

Provider

Alphabet Inc.

Provenance

Third Party

Purpose

  • Increasing network performance
  • Reducing bandwidth usage

Duration

Perpetual

Functional cookies

Functional cookies are cookies that allow a Website to remember the choices that you have made in the past and how you use the Website. For example, these cookies may be used for remembering what language you prefer, which pages you clicked on, or what your username and password are so that you can automatically log in to your account. These cookies are disabled by default and will be enabled only if you grant your consent to do so. If you do provide your consent‚ this Website will collect the following functional cookies:

Google Fonts

Description

This is a collection of fonts for commercial and personal use.

Provider

Google Ireland Limited

Provenance

Third Party

Purpose

  • Providing fonts
  • Improvement of service

Duration

Perpetual

How to Opt Out

Visit the cookie provider's website.

Google Tag Manager

Description

This is a tag management system. Via Google Tag Manager, tags can be integrated centrally via a user interface. Tags are small sections of code that can track activities. Script codes of other tools are integrated via the Google Tag Manager. The Tag Manager allows to control when a particular tag is triggered.

Provider

Google Ireland Limited

Provenance

Third Party

Purpose

  • Tag Management
  • Marketing
  • Analytics

Duration

Perpetual

How to Opt Out

Visit the cookie provider's website.

Vimeo

Description

This is a service for displaying video content.

Provider

Vimeo.com, Inc.

Provenance

Third Party

Purpose

  • Displaying Videos

Duration

2 years

How to Opt Out

https://vimeo.com/cookie_policy

Marketing cookies

Marketing cookies are cookies that track your online activity to, for example, help advertisers deliver more relevant advertisements or to limit how many times you see an advertisement. These cookies are disabled by default and will be enabled only if you grant your consent to do so. If you do provide your consent‚ this Website will collect the following marketing cookies:

Hotjar

Description

This is a web analytics service. It is used to collects data on users’ behavior. Hotjar can also process provided information from you within surveys and feedback functions incorporated into our website.

Provider

Hotjar Limited

Provenance

Third Party

Purpose

  • Analytics
  • Feedback

Duration

1 year

How to Opt Out

Visit the cookie provider's website.

Google Analytics

Description

This is a web analytics service. With this, the user can measure the advertising return on investment "ROI" as well as track user behavior with flash, video, websites and applications.

Provider

Google Ireland Limited

Provenance

Third Party

Purpose

  • Marketing
  • Analytics

Duration

2 years

How to Opt Out

https://tools.google.com/dlpage/gaoptout?hl=de

Your choices regarding cookies

You have certain choices when it comes to the placing of cookies on your device. You may choose to accept or deny any functional or marketing cookies. If you consent to the placement of these cookies but would then like to withdraw your consent, you may do so at any time through our cookie consent tool, which can be found on the Website’s home page. You can control your cookie choices using the following means:

  • Through our cookie consent tool, where you can select the categories of cookies that you allow to be placed on your device and withdraw that consent; and
  • Through your browser, where you can instruct it to delete or refuse cookies. You can visit the help center of your browser, the “Tools”, “Edit”, or “Help” pages to set your cookie preferences and delete cookies. We also encourage you to visit aboutcookies.org to learn more about how to opt out of cookies.

Questions

If you have any questions about this Cookie Policy, please contact us at info@aestusllc.com.

Guesswork is the enemy of smart drilling. It leads to wasted money, rework, and nonstop frustration. Aestus scans your site and interprets the data so you can see what’s beneath the surface, make smart decisions, and keep your project moving forward.
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Madison Culver
Madison Culver, M.Sc.
Staff Geologist / Field Technician
Since joining Aestus in 2024, Madison has performed various project tasks including field data acquisition, data integration and analysis, 2D and 3D visualization, and project report development.

As an undergraduate at Oklahoma State University, Madison utilized electrical resistivity imaging to locate a drilling target for a municipal water well in rural Oklahoma. Her Master’s degree, also from Oklahoma State University, focused on the production and laboratory testing of a novel groundwater tracing particle for use in a sole source aquifer.

Madison previously worked at an environmental consulting firm in Dallas, Texas, where she performed soil/groundwater investigations/reporting, PFAS sampling programs, and Environmental Site Assessments.

Madison is based out of Irving, Texas.
Michelle Lahti
Michelle Lahti, PACE
Administrative Director
Since joining Aestus in 2021, Michelle has supported the CEO and other managers in their day-to-day needs. She also manages human resources and all elements of the many conferences Aestus attends. Michelle works hard to ensure that the needs of stakeholders are addressed in all steps of the business process when working with our clients.
Michelle has a bachelor’s degree in Avionics Engineering Technology from Embry-Riddle Aeronautical University. She also has experience as a small business owner, and over 15 years’ experience as an executive assistant in many different industries. She has her Professional Administrative Certification of Excellence (PACE) through the American Society of Administrative Professionals (ASAP).
Michelle is based out of Wellington, Colorado.
Autumn Town
Autumn M. Town, M.Sc.
Staff Geologist / Field Technician
Autumn performs various project tasks for Aestus, including field data acquisition, data integration and analysis, 2D and 3D visualization, and project report development. Since joining Aestus in 2023, she has helped meet project objectives such as mapping stratigraphy, identifying areas of contamination, and characterizing preferential flow pathways at complex sites across the United States.
As an undergraduate at Oklahoma State University, Autumn utilized electrical resistivity imaging (ERI) to evaluate the hydrogeologic effects of PFAS-containing firefighting foams. While completing her Master’s degree, also at Oklahoma State University, she focused primarily on sedimentology and stratigraphy as she studied the effects of depositional and diagenetic processes on porosity development in a tight gas sandstone reservoir.

Autumn is based out of Tulsa, Oklahoma.
Morgan Love
Morgan Love, M.Sc.
Senior Project Geologist
Morgan has been a part of the Aestus team since 2012. She supports all aspects of data integration for Aestus in 2D and 3D space, including modeling of geophysical, geochemical, and geologic data. She also performs geophysical data processing and develops quality control and automation protocols to ensure data integrity.

Prior to Aestus, Morgan used her environmental geology undergraduate degree working for a water resource company, a geosciences software company, and a seismic data acquisition company. She holds a Master's Degree in Computer Information Systems.

Morgan is based out of Fort Collins, Colorado.
Grant Eastman
Grant Eastman
Equipment Manager / Field Technician
Grant maintains all our equipment and vehicles at a firehouse ready status in order for the field team to be ready to mobilize at moment’s notice. He also troubleshoots any technical issues that come up as well as being a member of the field team.

Grant graduated from Colorado State University with a degree in Watershed Science. After graduating he completed 8 years of military service with the Colorado Army National Guard, including two deployments to the middle east. Before joining Aestus, he was a senior technician building custom automation equipment and wire harness mockups for aerospace companies.

Grant is based out of Milliken, Colorado.
Samantha Frandsen
Samantha Frandsen, M.Sc, P.Gp.
Hydrogeophysicist / Project Manager
Since joining Aestus in 2018, Samantha has performed all aspects of the Aestus project lifecycle, including acquisition field work, processing of geophysical data, data integration, 3D visualization, and reporting. As project manager, she oversees a variety of projects completed at complex sites across the United States and strives to help our clients efficiently leverage Aestus’ high-resolution GeoTrax Survey™ data to improve understanding of subsurface conditions.

Prior to her time with Aestus, she earned her Bachelor’s degree (magna cum laude) in Physics from the University of Richmond and taught high school physics as a Teach for America corps member. She then completed her Master’s degree (Distinction) in Exploration Geophysics at the University of Leeds in the UK. For her thesis, she utilized several different geophysical techniques to characterize the subsurface remains of a former gasworks facility for which she was awarded the GETECH award for best overall performance in the Independent Project and the Association for Industrial Archaeology’s Dissertation Award.

When she’s not investigating what’s below the ground, Samantha enjoys exploring all the above-ground fun her Stateline (South Lake Tahoe), NV home has to offer via trail running, mountain biking, and snowboarding.

Samantha is based out of Stateline, Nevada.
Michael McNair
Michael McNair
Project Geologist / Field Team Leader
Michael has worked on a variety of project types using Aestus’ electrical hydrogeology techniques to help Aestus’ clients succeed relative to characterization of contaminated sites, evaluating geohazards, municipal water well exploration, and monitoring subsurface changes over time. Michael currently manages Aestus’ field operations to collect high quality subsurface electrical imagery (GeoTrax Survey™) at rural, urban, and industrial sites with complex logistics. When not in the field, Michael is a key member of Aestus’ reporting team and leads or assists with 2D/3D data integration, QC, data interpretation, and reporting.

Michael previously worked at an environmental consulting firm in Dallas, Texas, where he performed soil/groundwater investigations in the field and subsequently developed reports. Michael earned a Bachelor of Science in Geology from Baylor University.

Michael is based out of Orlando, Florida.
Todd Halihan
Todd Halihan, Ph.D., P.Gp.
CTO/Data Interpretation Lead
Todd’s focus at Aestus centers on subsurface characterization using electrical hydrogeology and sustainable water supply. He is also a professor and the Sun Company Clyde Wheeler Chair in Hydrogeology at Oklahoma State University. He was the National Ground Water Association’s 2018 McEllhiney Lecturer and he is a founding member of the NGWAU program for groundwater outreach and education.

Dr. Halihan is the recipient of the American Institute of Hydrology’s C.V. Theis Award winner. He is also a professional geophysicist (CA), professional driller (OK) and a PADI divemaster.

Todd is based out of Stillwater, Oklahoma.
Stuart McDonald
Stuart W. McDonald, P.E.
CEO/Project Executive/Contracting
Stuart has dedicated over 20 years of his career overseeing the development of Aestus with the goal of empowering clients worldwide to gain more certainty in subsurface issues to make better technical decisions and save time and money on their projects. He has been involved in managing hundreds of projects for Aestus in the USA, Europe, Asia, and South America.

Stuart spent the first decade of his career as an environmental consultant primarily with Canonie Environmental and Harding Lawson Associates and gained experience performing cradle to grave site characterization and remediation work on high profile Superfund and other projects. This experience was the genesis of founding Aestus in 2001 as it became clear that the environmental industry needed more data density and more certainty for optimal decision-making on projects.

Stuart is based out of Loveland, Colorado.