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!
Collier Geophysics is excited to announce our expansion into Tennessee. Senior Geophysicist, William E. Doll (Bill) has joined the Collier team to develop and offer technical support to government clients across the US. Bill has over 30 years of experience supporting environmental programs using seismic, airborne gravity, GPR, electrical and electromagnetic methods.
His background includes operating airborne magnetic and electromagnetic systems for mapping and detection of unexploded ordinance for DoD and other clients. He also serves as a Research Fellow through ORISE (Oak Ridge Institute for Science and Education). Bill can be reached at (865) 599-6165 or william@collierconsulting.com.

Welcome to the team, Bill!

Title: “Advancements for Geotechnical Subsurface Characterization in Transportation using Geophysics; including Ground Penetrating Radar, Seismic and Resistivity Methods”
Date: Friday, April 19, 2019
Speaker: Phil Sirles, Senior Geophysicst
On Friday, April 19th from 7:30 AM to 5:30 PM the American Water Resources Association (AWRA) along with the Colorado Groundwater Association (CGWA) will be holding their annual symposium at the Mount Vernon Canyon Club in Golden, Colorado.
This year the conference will cover a range of topics from technical and policy perspectives, including a deep-drill into ASR, geophysical applications, and how Coloradans are re-imagining the river.

John Jansen, Sr. Geophysicist and Hydrogeologist with Collier Geophysics, will be presenting, “Siting ASR Recharge Basin and Recovery Wells using Geophysics” during the Stories Geophysics Can Tell afternoon session from 1:35 PM – 3:20 PM.
View Agenda.

Ron Bell, Sr. Geophysicist and geoDRONEologist with Collier Geophysics, will be presenting, “Use of Drones to Characterize Groundwater Through Geophysics” during the Stories Geophysics Can Tell afternoon session from 1:35 PM – 3:20 PM.
View Agenda.

“Colorado Water Stories – Learning From our Past, Re-imagining our Future”
Friday, April 19, 2019
7:30 AM to 5:30 PM
Mount Vernon Canyon Club
24933 Club House Circle
Golden, CO 80401
Collier Consulting’s Senior Vice President, Hughbert Collier, Ph.D., P.G. will be presenting, “Guidelines for Assessing the Feasibility of Aquifer Storage and Recovery” at this year’s Texas Water Event in Houston, Texas.
Biography
Dr. Collier is a hydrogeologist and Senior Vice President of Collier Consulting, a geoscience, environmental, and engineering firm. Hughbert has over thirty years of experience in consulting, research, technical support for litigation, and lecturing. He has taught short courses for the National Ground Water Association and undergraduate and graduate hydrogeology courses at Tarleton State University.
Hughbert, along with his staff at Collier Consulting, has conducted hydrogeological investigations throughout the United States. Recent projects have included Aquifer Storage and Recovery feasibility, groundwater contamination investigations, hydrogeologic and engineering services for fresh and brackish groundwater development, groundwater modeling, and Hydros software development.
Dr. Collier will be speaking on Friday morning April 5, 2019 during the Water Resources Technical Session from 9:30 AM – 10:00 AM.

Texas Water 2019
George R. Brown Convention Center
Houston, TX
April 2-5, 2019

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.
Brandon Gartrell
SaaS Team Lead/GIS AdministratorJohn Jansen
Sr. Geophysicist/Hydrogeologist
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!
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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.