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About Us

Collier Consulting, Inc. was founded in 1997. Our focus on excellence and customer satisfaction resulted in a decade of rapid growth and diversification for the company. Collier Consulting now retains a highly talented team of scientists, engineers, project managers, and technicians.

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About Us

Our main office is located in Stephenville Texas and we have a satellite office in Fort Worth, Texas. Our highly mobile staff is available to travel the globe to complete projects and satisfy the most demanding client. We are large enough to tackle very complex projects, yet agile enough to mobilize quickly and complete projects in a timely manner. Our company culture promotes old fashioned values including attention to details and an excellent work ethic. We strive for long-term relationships with our team members and encourage them to develop long-term relationships with you - our clients.

Contact Us

Call our main office at (254) 968-8741

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Stephenville Office

  • Gail Collier - President
  • (254) 968-8741 Office
  • (254) 396-5321 Mobile
  • gail@collierconsulting.com
  • Hughbert Collier
  • (254) 968-8721 Office
  • (254) 396-0446 Mobile
  • hughbert@collierconsulting.com
  • Aaron Collier
  • (254) 968-8741 Office
  • (254) 396-3002 Mobile
  • aaron@collierconsulting.com

Fort Worth Office

  • Rusty Branch
  • (817) 691-9925 Mobile
  • rusty@collierconsulting.com

Find Us

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Water Supply Planning, Design, and Rehabilitation

Our water team can provide a full line of services from planning through implementation of your water supply.

Water system planning and design

Siting wells and well fields for optimum production

Drilling supervision

Rehabilitating water wells

Monitoring existing water systems

Aquifer storage and recovery system design and development

Water resource master planning

Water system leak detection

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Hydrogeological Services

Collier hydrogeologists and hydrologists provide the full spectrum of services to assess and develop groundwater resources, including the following services:

Groundwater availability studies

Groundwater modeling

Pumping tests

Geophysical/petrophysical acquisition and interpretation

Water well monitoring, testing, and sampling

Groundwater contamination investigations and monitoring


Environmental Services

The Collier environmental team provides environmental services to clients from a variety of industries - including oil and gas, government, real estate, manufacturers, insurance, and banking and mortgage.

Due diligence

Water resource assessments

Phase I and II environmental site assessments (ESA)

Compliance auditing

TCEQ and Texas Railroad Commission permitting

Geographic Information Systems (GIS)

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Surface and Borehole Geophysics

We offer an extensive line of surface and borehole geophysics services. Our geophysics group has experience with a wide variety of methods and work environments. Our tools include seismic, resistivity, EM, GPR, and others.

Top-of-rock profiling

Geohazard surveys

Fault studies

UST surveys

Karst feature location and delineation

Dam and levee integrity studies

Groundwater investigations

Borehole logging


Environmental Engineering

We provide a full range of environmental engineering, permitting, and monitoring services to animal feeding operations throughout Texas, New Mexico, Oklahoma, Louisiana, and Arkansas. We take pride in our excellent quality record and a level of customer service unparalleled in the industry.

Permit applications and renewals (CAFO and TPDES)

Nutrient management planning

Waste storage facility design and construction management

Environmental monitoring and record keeping

Water and soil sampling

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Litigation Support

Our team is available to provide litigation support on a wide variety of geological and environmental issues. Past cases involved litigation over injection wells, groundwater contamination, and surface contamination.