![[logo] US EPA](http://www.epa.gov/epafiles/images/logo_epaseal.gif){kind=logo}
Status Report for the Week of January 7, 2008
TECHNICAL ASSISTANCE
Technical Assistance to Region III: On December 26, 2007, Dr. John
Wilson (GWERD) provided RPM Debra Rossi with technical review comments
on the "Pre-Final Design Report for Operable Unit 3, Maryland Sand,
Gravel, & Stone Site." The facility is located in Elkton, MD. The
comments were abbreviated because the detailed design of the bioventing
system, and the subsequent anaerobic bioremediation system, has been
deferred until after sediments have been excavated, treated by thermal
desorption, and returned to the excavation. Questions were asked,
however, concerning air quality monitoring and oxygen transfer.
Discussions were offered with respect to the design, operation, and data
interpretation of microcosm studies. Other discussions were directed at
the processes involved in field-scale applications.
(00-R03-002)
(J. Wilson(GWERD)580-436-8534)
Technical Assistance to Region IX: On December 19, 2007, Steven Acree
(GWERD) and Dr. Bruce Pivetz (Shaw Env.) provided RPM Nadia Hollan with
review comments on a remedial investigation work plan for OU-3 at the
Yerington Mine Site in Yerington, NV. A major concern is that the work
plan lacks detailed discussions of the proposed studies and other
aspects necessary for a comprehensive review. It was recommended that
additional site-specific process information be included in either the
work plan or the report of these studies to facilitate an interpretation
of the data. In addition to suggesting examples of what site-specific
information might be needed, specific comments were provided on a wide
variety of issues.
(01-R09-004)
(S. Acree(GWERD)580-436-8609)
Taiwan Short Course: A short course on in-situ chemical oxidation
(ISCO) was presented to the Taiwan Environmental Protection
Administration (EPA) by Dr. Scott Huling (EPA, NRMRL, Ada, OK) and Mr.
Rick Lewis (ERM Inc., Boston, MA) in Taipei, Taiwan, December 5-6, 2007.
This event was coordinated through the EPA Region 10 (Bernie Zavala,
Kathy Veit) and the EPA Office of International Affairs (Dan Thompson,
Wash. DC). Dr. Huling and Mr. Lewis met with the Minister of Taiwan EPA
(Dr. Feng-Teng Chang) and the Executive Secretary of the Office of Soil
and Ground Water Remediation (Mr. Wan-Chu Huang). Two ISCO case studies
currently underway in Taiwan were presented and discussed. The 2-day
short course included 13 sessions and covered fundamentals,
advantages/disadvantages, bench- and pilot-scale studies, oxidant
selection, monitoring, health and safety, and case studies. The course
was attended by 110 technical staff from the Taiwan EPA, University
Professors and Students, and Consultants.
(Misc.)
(S. Huling(GWERD)580-436-8610)