Where will Collier be this September!

Collier will be attending numerous conferences and conventions! Check out below who will be presenting, speaking on panels, and exhibiting! We look forward to seeing you! 

  • Association of Environmental & Engineering Geologists 65th Annual Meeting – Las Vegas, NV. September 12-16
    • Exhibit Booth # 28
      • Doug Laymon, P.G. 
    • Speakers: 
      • Mario Carnevale, P.G.
        • Why Not Geophysics? 
        • September 15 @ 8:00 am, Room Sunset 3-4
      • Roy Bowling 
        • Applying Seismic Velocity Mapping for Landslide Shear-plan Identification, Theodore Roosevelt National Park 
        • September 15 @ 9:20 am, Room Sunset 3-4
  • National Ground Water Association Fractured Rock Conference – Burlington, VT. September 12-13
    • Sponsorship – Tabletop Exhibit 
      • Jon Algeo, Adam Belkadi, Cosimo Martelli, Charl du Toit, Mario Carnevale, and John Jansen
  • GeoCarolinas – Charlotte, NC. September 12-13
    • Speaker: Phil Sirles 
      • Project Risk Reduction: An Interview Viewpoint for the Modern Application of Geophysics as a Project Resource 
      • September 12
  • CECON 2022 – Frisco, TX. September 14-16
    • Exhibit Booth # 43
    • Speaker: Doug Laymon, P.G. 
      • Using Geophysical Tools in Texas to Assess Potential Geohazards to Assist in Design & Construction 
      • September 16 @ 8:00 am 
  • Dam Safety – Baltimore, MD. September 18-22
    • Exhibit Booth # 724
      • Nathan Collier, P.E. & Doug Laymon, P.G. 
  • Groundwater Resources Association Western Groundwater Congress– Sacramento, CA. September 19-21
    • Speaker:
      • John Jansen, Ph.D., P.G., P.Gp.
        • Managed Aquifer Recharge – The Project of the (Near) Future Session 
          • September 18 @ 10:30 am  
      • Kristen Marberry 
        • Near-Surface Geophysics Resources Applications Session 
          • September 19 @ 10:00 am


Our Colorado office continues to grow with the addition of Jim Pfeiffer to our geophysicists’ team. Jim has over 23 years of experience in project management, planning, implementation, and interpretation of geophysical surveys

Throughout his career, Mr. Pfeiffer has successfully performed hundreds of geophysical surveys for clients in the government and private sectors. Jim has designed and presented geophysical training workshops for state DOTs and FHWA. He is an active member of the Society of Exploration Geophysicists, the Denver Geophysical Society , and the Environmental and Engineering Geophysical Society (EEGS). Mr. Pfeiffer is a registered professional geophysicist in the state of California and a registered geoscientist in the state of Louisiana. He can be reached at (303) 818-4091 or jpfeiffer@colliergeophysics.com.

We are excited to have you with us, Jim!

Tuesday, March 19, 2019
10:20 AM – 12:00 PM (Geohazards Track
Doug Laymon, Senior Geophysicist presents: “Pre and Post Construction Characterization of Earthen Dams in Central Texas Using Various Geophysical Methods” — Written by Douglas E. Laymon, PG., and Finn B. Michelsen, P.G.

Tuesday, March 19, 2019
3:20 PM – 3:40 PM (SAGEEP 2 Track)

Jacob Sheehan, Senior Geophysicist presents: “How MASW Banished Shear-wave Refraction and ‘Should We Care’?”

Tuesday, March 19, 2019
4:00 PM – 4:20 PM (Featured Talk)

Phil Sirles, Senior Geophysicist presents: “Geophysical Opportunities in the Transportation Sector: Federal and State Initiatives”

4:20 PM – 5:00 PM (Panel Discussion)
“Changes in the Geophysical Industry? It’s What the Geotechnical and Transportation Engineers Want!”

Wednesday, March 20, 2019
9:00 AM – 5:00 PM (Poster Sessions)

John Jansen, Senior Geophysicist presents: “The Race to the Bottom: Using ERT to Maximize Horizontal Well Yield and Extend Production in Depleting Aquifers” – Written by John Jansen, P.G., and Ted Powell, P.G.

Also, 3 Opportunities to Hear from One of our Colorado Associates!

Monday, March 18, 2019
3:20 PM – 3:40 PM (Crestone Crater SAGEEP 1 Track)

Ronald Bell, Senior Geophysicist presents: “Airborne and Ground Geophysical Studies in the Great Sand Dunes National Park – San Luis Valley, CO”.

4:00 PM – 4:20 PM
“Drone Enabled Magnetic Survey over the Crestone Crater”.

Wednesday, March 20, 2019
10:20 AM – 10:40 PM

“Integrating Photogrammetry. Lidar, and Magnetic Data Acquire Using a SUAS to Characterize and Monitor a Closed Landfill”.

The AGWA-AGWT Annual Groundwater Conference will be taking place in Ontario, California on February 11th-12th, 2019. Brandon Gartrell, Saas Team Lead & GIS Administrator, will be presenting, “Helping GSAS Achieve Sustainability Using Focused Groundwater Management Software” during the Cloud & Water Resources Management Session on February 11th.  John Jansen, Senior Geophysicist & Hydrogeologist, will deliver, “Groundwater Discharge and Salt Water Intrusion Along the Southern California Coast” during the Geophysics at the Fresh Water/Salt Water Interface of Southern California’s Coastal Aquifers Session on February 12th.  View Program Agenda.

AGWA/AGWT Annual Conference
February 11th-12th, 2019

Gateway Hotel
2200 East Holt Blvd.
Ontario, CA 91761

Guests from across the state of Texas and from out of state gathered together for an evening of entertainment and celebration. From attending a show at Granbury Live, dinner at Babe’s Chicken Dinner House, and enjoying the cake, Frosted Art, provided for the event, everyone had a great time celebrating the company’s success over the past 20 years.

“We appreciate the opportunity over the last 20 years to work with all of the very talented people that we have had in our lives and all of the great clients who have put their faith in us to meet their various needs”. 
– Aaron Collier, Vice- President.

Cheers! Here’s to 20 more years!

Phil Sirles, Joins the Collier Team!

Collier Consulting is pleased to announce Phil Sirles, Senior Geophysicist, as the newest member of the Collier Team. Phil will manage the Colorado office of our new company, Collier Geophysics LLC. This will expand our capabilities for geotechnical and environmental  continue reading..

Collier Consulting is currently looking to expand the company’s geophysical team in the Denver, Colorado area. We are accepting applications to fill a number of job openings for senior level geophysicists, junior level geophysicists, field technicians, and office support staff. If you are interested in applying for any one of these positions, please contact us at (720) 487-9200 or submit your resume to info@collierconsulting.com.



The Colorado Groundwater Association has invited Ron Bell, Senior Geophysicist, to be the luncheon speaker for their monthly meeting. On November 14, 2018, Ron will be presenting “Applying Groundwater Geophysics in the Prairies and Mountains of Colorado”. In his discourse, Ron highlights the geophysical data and cost effective benefits of integrating geophysical methods in groundwater resources exploration and how they contribute to the success of the project(s).

Ron has over thirty years of experience in the application of geophysical technology to groundwater, mineral, geothermal, and hydrocarbon resources exploration as well environmental and geotechnical subsurface site characterization. His experience includes the acquisition, processing, visualization, and interpretation of terrestrial, borehole, and airborne potential field data including direct current resistivity, induced polarization, time and frequency domain electromagnetic, magnetic, and gravity methods.

The luncheon will be from 12:00 PM – 1:00 PM
Geotech Environmental Equipment, Inc.
2640 East 40th Ave. Denver, CO 80205.

For more details click here.


Welcome to the Team! 

Collier Consulting, Inc. is pleased to announce the opening of our Colorado office which will focus on geophysical services. Ron Bell, Senior Geophysicist, has joined our team and will manage this office in Denver. Ron has over 30 years…continue reading