TNI Logo The NELAC Institute

Good Laboratory Practice Series: Principles of Sample Collection


The course will emphasize the importance of collecting samples that represent the source matrix and maintaining the integrity of the sample until delivery to the laboratory. Also implicit in these objectives are understanding the objectives/reasons for collecting the samples, and ensuring that the selected site (or sites) accurately represent the goals of the sampling project.

The goal is to provide practical guidance and performance measures for field operations to consider when collecting samples.

This training series consists of the three sessions listed below. You may register to attend Sessions 1+2, Sessions 1+3, or all three sessions.

Date Time Class
4/8/19 12pm - 4pm Session 1: General Concepts
4/11/19 12pm - 4pm Session 2: Water Sampling Sources
4/16/19 12pm - 4pm Session 3: Sediments
All times Eastern

Session 1: General Concepts

  • Importance of Sample Collection
    • Why Samples Are Being Collected
    • Sample Planning and Site Location
    • Quality Topics
    • Pre-deployment
    • Common Sense Principles
    • Contamination Prevention
    • Equipment and Supplies
    • Preservation and Sample Containers
    • Documentation
  • Common Water Sampling Techniques
    • VOCs
    • Bacteria
    • Giardia & Cryptosporidium
    • Phytoplankton
    • Macroinvertebrates
    • Toxicity
    • Radiochemistry

Session 2: Water Sampling Sources

  • Drinking water
  • Surface (ambient) Water and Wastewater
    • Grab Samples
    • Automatic Samplers
  • Groundwater
  • Ultra-Trace metals

Session 3: Sediments

  • Collecting Chemical and Microbiological Samples
  • Collecting Biological Sample (Macroinvertebrates)
  • Soils
    • Collecting Volatile Organic Samples
  • Swab/wipe samples
    • Viruses

Audience: Field and Laboratory Personnel. Engineering firms. Technical managers and quality assurance managers will also benefit from the course material.

Learning Outcome: Completion of the course will provide the attendees with an understanding of the importance of maintaining sample integrity and traceability as the sample is handled in the field and in the laboratory.

Session 1+2: $165 for TNI members and $190 for non-members, $725 group rate (5+ students)
Session 1+3: $165 for TNI members and $190 for non-members, $725 group rate (5+ students)
Session 1+2+3: $225 for TNI members and $250 for non-members; $990 group rate (5+ students)

Note: A Certificate is included in the registration.


Start Date:
Monday 8th April 2019, 12:00pm EST

4 hours each

This course has been reviewed and approved by TNI.

Presented By:

Silky Labie

About the Presenter:
The principals of ELCAT, LLC collectively have over 70 years of experience in laboratory and field quality management. ELCAT, LLC provides extensive training of laboratory and field personnel in sampling techniques, quality management and training that addresses the requirements of the National Environmental Laboratory Accreditation Program (NELAP). It performs readiness audits for laboratories who desire to improve their quality system for the purposes of NELAP accreditation. ELCAT presents training and presentations on quality-related topics such as method performance, data integrity, corrective and preventive actions, root-cause analysis, data usability, and the role of quality managers. The company is used exclusively by the University of Florida Center for Training, Research & Education for Environmental Occupations (TREEO) for all off-site training of field personnel. It is regularly asked to provide presentations at the Florida Society of Environmental Analysts (FSEA) meetings. ELCAT, LLC has also provided training and presentations for New York City, the State of Virginia, and The NELAC Institute (TNI).