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Challenges in Sampling Wells in Fractured Rock and Sedimentary Rock with Multiple High Permeability Zones - Live Webinar

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Challenges in Sampling Wells in Fractured Rock and Sedimentary Rock with Multiple High Permeability Zones - Live Webinar

When
Mon, September 28, 2026
10:00 AM - 12:00 PM
Location
Live Zoom Webinar
Spaces left
133

Registration

EPOC Member – $100.00
For current EPOC Professional and Associate members only.
Gov't/Student – $50.00
Reserved for government employees and students only, subject to confirmation.
Non-Member – $200.00
For non-members. Please consider joining EPOC to receive discount member rate.

Challenges in Sampling Wells in Fractured Rock and Sedimentary Rock with Multiple High Permeability Zones

Sept 28, 2026, 10 AM - 12 PM

Live Zoom Webinar

Speaker: Gary Robbins, Ph.D.

Continuing Education Credits in both CT and MA:

This is the first time this course is being offered for CT LEP credits. The CT State Board of Examiners of Environmental Professionals (LEP Board) has approved this course/webinar for 2.0 hours of continuing education credits (CTLEP-655 W). The MA LSP Board has approved this course for 2.0 hours of technical credits (course number pending).

Fees:

EPOC Members: $100
Non-members: $200 (consider joining EPOC at this time to receive the member rate for this program)
Gov't Employee/Students: $50

Course Description:

In this course participants will learn about challenges in obtaining representative water quality samples in wells that intersect multiple water contributing zones such as fractures in crystalline rock or permeable sedimentary layers. Water quality obtained from such wells are averages influenced by the water quality, flow rates, and hydraulic heads in individual zones. Water levels in wells during sampling and purging also have a strong influence on zone water quality averaging. In this course we will review these issues and how to best sample to determine the most representative samples depending on what is your interest - what people are drinking or levels of contamination in individual zones- and how best to focus remediation efforts to maximize contaminant mass extraction.

Course Agenda:

What factures influence water quality in wells that intersect multiple permeable contributing zones
Efforts and cost of conventional well logging
Dissolved oxygen alternation method to locate active flow zones in wells
Sampling active zones

Speaker Bio:

Dr. Gary Robbins is an Emeritus Professor at the University of Connecticut. He has been a hydrogeologist for over 40 years. His professional experience includes working as a Federal regulator, consultant to the USEPA and other Federal agencies, consultant to state environmental regulatory agencies throughout the U.S,, Project Hydrogeologist for Woodward-Clyde Consultants working on a variety of groundwater contamination-related projects, and Professor of Geosciences and Natural Resources. His most recent research focused on improving methods for investigating groundwater flow and contamination in fractured crystalline bedrock.

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