Note: This announcement is for two events 1) a short course on  
isotope techniques for groundwater investigations, and 2) a symposium  
on the same topic.

More information can be found at http://www.grac.org/isotope.asp

Please contact Bill Motzer (510-595-2120 or  
[log in to unmask]) or Tom Mohr (408-265-2607 extension 2051  
or [log in to unmask]) if you would like to discuss your topic for  
this Symposium before submitting your abstract, or if you have any  
questions.

-----------------------------------------------
A Two Program, Two Day Event
Isotope Methods for Groundwater Investigations Course
Applications of Isotope Tools to Groundwater Studies Symposium
March 28 & 29, 2007
The Hilton Hotel, Concord, CA

Event Announcement and Symposium Call For Abstracts
Abstract Submittal Deadline is January 26, 2007



The use of isotopic methods in groundwater investigations is gaining  
widespread acceptance among hydrogeology professionals. Well- 
established techniques such as using stable isotopes of hydrogen and  
oxygen as markers of water source have been applied in water resource  
investigations for several decades. Isotope methods are powerful  
tools when applied to the intractable problems of source attribution  
for the most common groundwater contaminants, including nitrate,  
VOCs, and perchlorate. Radioactive isotopes can be used to determine  
groundwater age, or the time since water entered the saturated zone,  
which has important implications for delineating groundwater or  
contaminant flow pathways, identifying recharge areas, and providing  
a measure of aquifer vulnerability. GRA seeks to provide a forum for  
disseminating proven methods, practical applications, and problem- 
solving techniques involving isotopes and groundwater investigations.

Join us March 28 and 29, 2007 at the Hilton Hotel in Concord,  
California for the 3rd Event in GRA's Tools and Technologies Series.

March 28 – Isotope Methods for Groundwater Investigations Course

Instructors: Dr. Carol Kendall (U.S. Geological Survey) and Dr. Jean  
Moran (Lawrence Livermore National Laboratory)
Check for future updates about the short course on GRA’s web site at  
http://www.grac.org/isotope.asp

March 29 – Applications of Isotope Tools to Groundwater Studies  
Symposium

Symposium sessions will cover a variety of topics, including but not  
limited to:

Surface Water – Groundwater Interaction
• Tracing artificial recharge at surface spreading sites
• Use of isotopes to monitor aquifer storage and recovery (ASR)
• Tracking stream recharge along losing stream reaches
• Induced recharge via pumping
• Isotope tracers in areas of groundwater banking
• Use of isotopes to examine biogeochemical processes in the  
hyporheic zone
• Examining vadose zone transport using isotope methods

Contaminant Transport and Geochemical Evolution of Groundwater
• Multi-tracer or multi-isotope studies
• Nitrate source attribution using isotope tracers
• Characterization of nitrogen fate, transport and cycling in the  
saturated and vadose zones
• Perchlorate source attribution using isotopes of Cl and O
• Use of sulfur, carbon, boron or halogen isotopes in fate and  
transport studies
• ‘Heavy’ stable isotopes (e.g., Cr, Pb), or radiogenic isotopes (Sr,  
U, etc.) in environmental forensics applications
• Isotope methods for examining multi-component mixtures

Aquifer Vulnerability and Water Residence Time
• Age dating groundwater using radioactive isotopes (e.g., tritium  
(3H), 3H-Helium, 14Carbon); application of other groundwater age  
tools (CFCs, SF6, 4Helium)
• Using groundwater age to validate or calibrate flow and transport  
models
• Identifying paleowater using long-lived isotopes and other age/ 
climate proxies
• Applications of ‘young’ groundwater tracers in active recharge areas
• Tracer techniques for examining groundwater mixing/dispersion
• Communication of results from isotope studies to clients, sponsors,  
purveyors, and the public

Experts from academia, consulting, regulatory agencies and industry  
will participate in moderated speaker sessions and posters sessions.  
The combination of invited speakers and experts from key areas, along  
with talks chosen from submitted abstracts, will make this an  
important event for all professionals considering application of  
isotopic techniques in groundwater investigations.

Abstracts for Papers and Poster Presentations at the Symposium

GRA welcomes submittals of abstracts for papers and poster  
presentations on any topic related to the use of isotopes in  
groundwater investigations. The deadline for submitting an abstract  
for a Paper or a Poster Presentation is January 26, 2007. Please feel  
free to contact Bill Motzer (510-595-2120 or  
[log in to unmask]) or Tom Mohr (408-265-2607 extension 2051  
or [log in to unmask]) if you would like to discuss your topic for  
this Symposium before submitting your abstract, or if you have any  
questions.

Student Poster Competition

GRA welcomes poster submissions describing recent research in any of  
the topic areas from undergraduate and graduate students. Prizes for  
the best student posters will be awarded!
First prize - $300
Second prize - $200
Third prize - $100
Poster presentations will take place during an evening reception on  
March 28th. Winners will be announced during lunch on March 29th.
Students, submit your poster abstract according to the guidelines  
given below.

Guidelines for submitting an abstract for a Paper or Poster  
Presentation:

 > Word 9.0 documents are preferred.
 > Indicate the preferred presentation method (paper or poster) and  
the topic of the abstract
 > Abstracts must be one page in length or less, and should be titled  
and include all contributing authors' names and affiliations. Please  
identify the name of the person who will be presenting the paper or  
poster, and add biographical sketches of the authors as a second  
page. The sketches should be 50 words or less in paragraph form, and  
full mailing and e-mail addresses and phone and fax numbers must be  
included.
 > Margins should be 1-inch top, bottom, and right side and 1 Ό-inch  
left margin. The text should be single-spaced, 10-point size, Times- 
Roman font, with no pagination, footers and headers. Paragraphs  
should be justified.
 > Major headings should be 12-point bold; minor headings should be  
10-point italicized not bolded. There should be one blank line above  
and below all headings, except above major headings, which should  
have two blank lines.
 > Graphics should not be used in Abstracts.

By virtue of submitting an abstract, the submitter(s) grants GRA the  
right to publish any accepted abstract or the right to decline any  
abstract. Please submit your abstract by email to: Mary Megarry,  
Groundwater Resources Association, [log in to unmask] no later  
than January 26, 2007. The Symposium Committee will review abstracts  
and make final selections.

Exhibitors and Sponsors
If you are interested in exhibiting your organization's services or  
products, or being an event sponsor, please contact Mary Megarry at  
[log in to unmask] or 916-446-3626. GRA welcomes co-sponsors,  
lunch, refreshment and reception sponsors.


GRA is dedicated to resource management that protects and improves  
groundwater
through education and technical leadership.

915 L Street, Ste 1000 * Sacramento, CA 95814 * Ph: 916-446-3626 *  
Fx: 916-442-0382 * www.grac.org

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