Assessment, Field Testing, and Conceptual Design for Managing Dense Non-Aqueous Phase Liquids (DNAPLs) at a Superfund Site

TRRP Training: 2022 Program

presented by: GSI Environmetal Inc.

Texas Risk Reduction Program regulations (TRRP; 30 TAC 350) establish consistent risk-based protocols for assessment and response to soil, groundwater, or surface water impacts associated with environmental releases of regulated wastes or substances.

Presented by GSI Environmental Inc., this popular and informative training series is a must for professionals who need a working understanding of TRRP and those needing to stay up-to-date with the latest TCEQ TRRP guidance and policies.

TRRP Training Course (2 Days): Provides an overview of the TRRP framework and step-by-step training on property assessment and response action procedures established under the TRRP rule

Attendees will become acquainted with rules, key guidance and policies covering affected property assessments, protective concentration levels, and response actions. The course material presents strategies for efficient project management in compliance with TRRP and explains the various report forms adopted by TCEQ.

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Sponsored by: ​
Texas Association of Environmental Professionals (TAEP) TAEP is the premier organization for environmental professionals in the State of Texas. The goals of TAEP include the advancement of the environmental profession and the establishment of a forum to discuss important environmental issues. TAEP members receive a 10% discount. Please call 713.522.6300 for the code.

Dates and Location

Dates

June 14th and 15th, 2022

Location

Crowne Plaza River Oaks 2712 SW Freeway Houston, Texas 77098 713.523.8448 http://www.crowneplaza.com/

Price and Registration

Early-Bird Price

(Paid by May 1, 2022)
$XXX

Standard Price

(Paid after May 1, 2022)
$XXX

TAEP Membership Price

$XXX

Government Price

$XXX
Lodging and meals are not
included in course cost
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Authors: Charles J. Newell, John A. Connor

Published: March 1991 in N/A.

Abstract

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The presence of dense non-aqueous phase liquids (DNAPL) can greatly complicate groundwater remediation efforts due to the downward migration of these heavy oils within an aquifer system and the difficulty of extracting DNAPL using conventional pumping methods. These problems are now being observed at the Motco Superfund Site near Houston, Texas, where DNAPL is present in a shallow surficial aquifer. To develop an effective scheme for DNAPL management, the aquifer remediation program for this site includes these elements:
  • Detailed stratigraphic interpretation of the aquifer to delineate the zone of DNAPL accumulation.
  • A pilot recovery test to determine the effectiveness of enhanced oil recovery technologies (EOR) for mobilizing DNAPL.
  • A combined modeling and field study to evaluate the effect of DNAPL dissolution on future remediation activities at the site.
  • A conceptual remedial design for extracting mobile DNAPL and for managing residual DNAPL and DNAPL dissolution products
Given the difficulty of achieving conventional groundwater clean-up standards in DNAPL-affected portions of an aquifer, an alternative approach for the management of DNAPL sites is proposed below. This approach is based on restoration of groundwater quality in areas that are considered to be free of DNAPL, and long-term containment of DNAPL and DNAPL dissolution products in zones where DNAPL presence is either confirmed or suspected based on evaluation of site data.