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Course 6-1007: New Regulatory Limits of Hexavalent Chromium (CA) in Drinking Water - What is next?


On July 1, 2014 the state of California set the limit of hexavalent chromium (CrVI) allowed in drinking water to 10 ppb - representing the first state to implement what is expected to become a national standard. Driving this hexachrome regulation was a highly publicized Environmental Working Group (EWG) report regarding the hazards of hexavalent chromium contamination of drinking water.

Following the report's original publication in 2010, the U.S. EPA, the California Department of Health, Academia representatives and instrument vendors collaborated to update U.S. EPA method 218.6 to method 218.7 - which took effect November 2011.

This webinar will review basic principles of analysis method 218.7 and discuss its application.


  • Know the differences between the existing method (218.6) and the new method (218.7)
  • Know the Data Quality Objectives for this analysis - from a User and Auditor perspective.
  • Know how to apply flexibility in sample handling, preservation and holding times.
  • Know the pros and cons of CADPH recommended sample preservation (for California).


The course offers 0.1 CEUs to participants who answer course questions and receive a score of 60% or higher.


  • Quality Assurance Personnel
  • Laboratory Assessors
  • Laboratory Analysts
  • Laboratory Data Reviewers


This course is being supported by The NELAC Institute as one of a series of courses designed to provide training to environmental laboratory analysts. For more information about TNI's training program, visit our Educational Delivery System website at:



Course Fee:
$25 for TNI members; $35 for all others; $75 group rate


Start Date:
Tuesday 19th August 2014, 1:00pm

1 hour

This course has been reviewed and approved by TNI.

Presented By:

Jay Gandhi, PhD

About the Presenter:

Dr. Gandhi brings 27+ years of proficiency with virtually all analytical instrumentation and the techniques of Environmental, Petrochemical and Pharmaceutical testing and research. In his distinguished career, here are few highlights of his achievements

  • 1992-1993 - He received highest award from DuPont Company as non-DuPont employee for completing Recycled Vinyl Acetate project from conception to completion in record 10 months. This saved DuPont $12 million per year.
  • 1994-1998 - At Varian Inc., He received several awards as exemplary employee for outstanding customer service.
  • 2001 - At NASA being a principal investigator for Mars Exploration project, received several awards for Recycling of Water in Space project and several safety awards.
  • Since 2002 - He has shepherded several ASTM and USEPA methods, most recently USEPA method 218.7 for "Analysis of Hexavalent Chromium in Drinking Water"
  • Dr. Gandhi is currently Regulatory Affairs Manager with Metrohm USA.