Environmental Professionals
Organization of Connecticut

  • Home
  • Dissolved Oxygen Alteration Method for Fractured Bedrock Wellbore Flow Characterization

Dissolved Oxygen Alteration Method for Fractured Bedrock Wellbore Flow Characterization

  • Wed, October 18, 2017
  • 8:00 AM - 12:00 PM
  • University of Connecticut, Storrs
  • 25


Registration is closed

Dissolved Oxygen Alteration Method for Fractured Bedrock Wellbore Flow Characterization

Wednesday, October 18, 2017
University of Connecticut, Storrs, CT

Gary Robbins, Ph.D., University of Connecticut

Continuing Education Credits:

This course was previously offered on 4/5/17. The CT State Board of Examiners of Environmental Professionals (LEP Board) has approved this course for 4.0 hours of continuing education credits (CTLEP-430). The MA LSP Board has approved this course for 4.0 hours Technical Credits (LSP Course #1593). The course also has been approved in NY (course #20170076) for 4 PDH(s) - (2 PDHs Continuing Education/Training Activity,  2 PDHs Other Educational Activity) in the field of Professional Engineering. 


Time and Location:

Registration will begin at 7:30 AM, the program runs from 8 AM - 12 PM.  The course will be held at University of Connecticut, Storrs, CT, Beach Hall - room 233 (updated 10-11-17). Further directions and parking information will be sent to registrants.

Laptop Required:

A windows laptop with Microsoft Excel (tm) installed is required for this course. Following registration, you will be provided to links to download other analysis software to be used in the course.

Course Objectives:

The objective of this course is to introduce attendees to the Dissolved Oxygen Alteration Method (DOAM) for characterizing wellbore flow in bedrock wells. The DOAM entails increasing the dissolved oxygen content of a well through bubbler aeration, then profiling periodically to identify changes in dissolved oxygen associated with flow conditions. The DOAM can be used to identify transmissive fractures and vertical flow direction under ambient and pumping conditions, and provide a cost-effective means of interpreting sampling results in consideration of three-dimensional factors that influence flow.

This course will begin with a review of the risks associated with two-dimensional site characterization, and the limitations of traditional techniques for wellbore flow characterization. The attendees will then be introduced to the DOAM as developed by Chlebica and Robbins (2013) as a cost-effective and logistically simple alternative for delineating wellbore flow in bedrock wells under ambient and pumping conditions.

The outdoor field demonstration will include aeration and monitoring of dissolved oxygen in a 300-ft bedrock well under pumping conditions. Attendees will record and analyze data while profiling. Following field testing, the instructors and attendees will reconvene in the classroom to discuss the results of the field test and answer any questions. 


  • 7:30 AM -  Registration
  • 8:00 AM  -  Introduction
  • 8:10 AM -  Dissolved Oxygen Alteration Method (DOAM)
  • 9:10 AM -  Break and Transition to field site
  • 9:15- 11:15 AM -  Field demonstration and analysis of DOAM under pumping conditions
  • 11:15 AM - Return to class room, analysis discussion, Q&A
  • 12:00 PM -  End of Seminar


Dr. Gary Robbins:

Dr. Gary Robbins is a Professor of Geology in the Department of Natural Resources and the Environment at the University of Connecticut in Storrs, CT. Professor Robbins is well known for his research work aimed at improving site investigations at contamination sites. Often called "the consultants consultant", he has offered training courses across the country for the private sector and the EPA. He is the author of Expedited Site Assessment: The CD, the recipient of a Contribution to Practice Award by the Massachusetts LSPA, the recipient of the University's Chancellor Information Technology Award, and is the 2016-2017 UCONN Teaching Innovation Awardee. Prior to coming to UConn he worked for Woodward-Clyde Consultants and before that the Nuclear Regulatory Commission. He has been called upon as a private consultant, expert witness and arbitrator for the private sector and government entities. He is a CPG with AIPG, a Registered Geologist and Certified Engineering Geologist in California, and a member of EPOC.

Environmental Professionals Organization of Connecticut, Inc.
P.O. Box 176, Amston, CT 06231-0176
Seth Molofsky, Executive Director
Phone: (860) 537-0337, Fax: (860) 603-2075

©2024 Environmental Professionals Organization of Connecticut, Inc. | Terms and Conditions | Privacy Policy

Powered by Wild Apricot Membership Software