National Ground Water Association

(WESTERVILLE, OH — August 2, 2011) A Webinar on the use of nitrogen-15 and carbon-13 to trace NO3- and NH4+ contamination and attenuation in groundwater will be hosted by the National Ground Water Association September 27 at 11 a.m. ET.

It will address:

• Recharge and pathways of groundwater and nutrients in agricultural watersheds
• Redox geochemistry and the nitrogen cycle
• Nitrogen-15 in NO3- and NH4+ from agricultural, domestic, and industrial sources
• Sampling and analysis of nitrogen species for isotope analysis.

The Webinar will be presented at a level appropriate for all groundwater professionals including environmental consultants, consulting engineers and geologists, and water supply engineers. University-level chemistry and/or geochemistry is desirable.

The presenter is Ian Clark, Ph.D., professor of isotope hydrology, University of Ottawa, Canada.

To learn more about this Webinar, as well as the many other NGWA educational programs, click on the "Events-Education" menu tab above or call 800 551.7379 (614 898.7791).

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NGWA, a nonprofit organization composed of U.S. and international groundwater professionals — contractors, equipment manufacturers, suppliers, scientists, and engineers — is dedicated to advancing groundwater knowledge. NGWA’s vision is to be the leading groundwater association that advocates the responsible development, management, and use of water.

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