CREDIT FOR ATTENDANCE:

• .75 Technical CEC by the New Jersey Site Remediation Professional Licensing Board
• .75 Professional Development Hour (PDH)*

Please choose the "With Certificate" option in the checkout in order to receive a downloadable certificate as proof of attendance. If you register for this course at the “No Certificate” rate, you are not eligible to receive a certificate at a later date. 

DESCRIPTION:

.75 hours

The evolution of conceptual bedrock groundwater flow models for the Newark Basin has been driven by changing model objectives and new developments in bedrock characterization tools.  Early conceptual flow models treated bedrock as an equivalent porous medium (EPM).  Such models ignored the discrete yet non-uniform nature of groundwater flow through the bedrock and the impact of structural dip on the flow.  Variants of the EPM model, including bedrock conceptualizations as consisting of the “shallow and deep” or the “shallow, intermediate and deep” bedrock units are still used at many contaminated bedrock sites, with horizontal depth intervals of such units arbitrarily selected.

Any successful remedial investigation and remediation of bedrock groundwater requires that actual flow and migration pathways be identified and characterized as remediation targets.  The conceptualization of bedrock Leaky Multiunit Aquifer System (LMAS) provides a proper generic guide, the usefulness of which has been demonstrated at many contaminated bedrock sites in the Newark Basin.  The LMAS model specifies that the bulk of bedrock groundwater flow occurs via a few conductive bedding fractures that acts as aquifer units and are separated by thick aquitard units.  The talk will discuss characteristics of the generic LMAS model, and present some 14 practical clues derived from it.  These clues are helpful in designing and execution of a cost-effective and successful bedrock groundwater remediation.

*Please note: PDH's may be considered as qualifying continuing education credit for Professional Engineering, Geology and Land Surveying licensure in New York State in accordance with NYSED Commissioner’s Regulations Section 68.14 (i)(2)(iii). The licensee is responsible to ensure that the course material contributes to professional practice in engineering, land surveying, and/or geology as such practice is defined in sections 7201, 7203 and 7204-a of Education law.