Ensuring Data Defensibility

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Course Title: Ensuring Data Defensibility
Course ID: STAT-390
Status: CLOSED
Date(s): October 4, 2021: 8:30am - 4:30pm
Location: Live Remote Attendance-- USA

Time Zone TBD, WA
Instructor: Dr. Deb Gaynor
Tuition: $445 / $395*
$395 / $345* (Before September 4, 2021)
Class is Closed


Save $50 when you register for the series! Classes listed below.
Evaluating Data Quality for Decision Making


**Note - For every course we have implemented live stream remote attendance options for those who prefer a no-contact alternative to in-person attendance.  You will need a computer and an internet connection.  We will follow the maximum in-person meeting size as per health authorities and if recommended we will only offer remote attendance.

If conditions permit, you are welcome to attend the course in-person, we likely will have between 5 to 10 in-person attendee's in a large room to provide safe spacing.  We also wipe every surface down and provide hand washing and disinfectant wipes as a courtesy.  If you would like more information or have any questions, please contact us via email or phone 425 270 3274


Students will be introduced to the fundamentals of data defensibility for environmental field and laboratory programs, and proactive strategies will be covered.  The elements needed to produce data which can withstand legal challenges will be examined in detail, and the actions and materials required to produce and maintain defensible data will be full explored.


The elements needed to produce defensible data that will be covered are:


  • Field documentation from arrival until departure
  • Laboratory documentation and reporting
  • Conformance with regulatory and programmatic requirements
  • Compliance with regulatory and programmatic requirements
  • Introduction to statistical analyses and their role
  • Reports


This course is designed to provide field engineers and laboratory personnel with the tools to  produce environmental data that is invulnerable to legal challenges.  Students will be introduced to the legal aspects of environmental projects to provide context for discussion.  Case studies will be included illustrating how sound environmental practices with rigorous attention to established good practices can protect a project from unnecessary failure if challenged.  Detailed reviews of field and laboratory records will be performed to identify vulnerable points.


This course may be taken as a follow-up to the Principles of Quality Assurance and Quality Control, Writing a QAPP, and/or Evaluating Data Quality for Decision Making courses, or may be taken as a stand-alone class. 

Intended Audience:

Intended students include environmental field personnel, environmental laboratory personnel, and lawyers and paralegals who specialize in environmental data cases. 

Continuing Education Units: 0.70 CEUs

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Course Topics


About the Instructor

Dr. Deb Gaynor

Dr. Deb Gaynor

Dr. Gaynor has more than 30 years of analytical chemistry and environmental management and consulting experience. For eleven years she worked closely with the USEPA through the Contract Laboratory Program (CLP). In 2000, she founded Phoenix Chemistry Services, to provide expert analytical chemistry consulting services, data validation, and quality assurance services to laboratories and engineering companies performing hazardous site investigation and remediation services as well as long-term monitoring for all environmental contaminants in solids, liquids, air, sediment, and biota. She has extensive experience in the development and performance of analyses of environmental samples on GC and GC/MS systems, while ensuring compliance with quality assurance programs. She has managed the GC/MS section of a large environmental laboratory, and has worked as the Quality Assurance Officer of a microbiology laboratory. Dr. Gaynor has provided software training for chromatographic instrumentation in laboratories serving the needs of environmental, petrochemical, pharmaceutical, and clinical industries.She has also developed and taught in-house courses for laboratory personnel on chromatography and quality assurance. Dr. Gaynor is a member of The NELAC Institute Chemistry Expert Committee. 

What to Bring

Pen or pencil to take notes. Drinks and snacks will be provided. Lunch will be on your own.

Billing Information

In order to guarantee a space in a course, the tuition must be paid in full TWO WEEKS before the first day of the course by either check or credit card. State and government agencies paying with a purchase order are allowed payment under the two-week time frame if a copy of the purchase order is received by NWETC.

If You Need to Cancel


  • With 31 or more days notice, we will offer a 100% refund or credit towards a future course. The credit is good for one year and may be applied to any course.
  • With 30-8 days notice, we will offer a course credit towards a future course. The credit is good for one year and may be applied to any course.
  • With fewer than 8 days notice, there is no course credit available

*Please note that attendee replacement is welcome at any time

Disability Accommodations

Disability Accommodations:

To request disability accommodations, please contact us at or 425-270-3274 at least 30 days prior to the event.


  • From:

  • To:
  •   Live Remote Attendance-- USA Time Zone TBD, WA TBD



*Reduced tuition available to employees of Native American tribes, nonprofits, and government agencies; students; and NAEP members.

If you have any trouble registering please call (425) 270-3274 ext 103
Please wait to receive a course confirmation email, roughly one month prior to the class, before making any travel arrangements. Please review what to bring!


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