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Collecting and Handling of Water Samples for Trace Metal Analysis
Hosted by Northwest Environmental Training Center

This course is designed for anyone collecting ambient water samples for the analysis of low-level total and dissolved mercury and other trace metals, as well as various metals species (including methylmercury and inorganic arsenic species). This one-day course will include a half-day in a classroom with lectures covering the circumstances in which low-level detection limits would be desired or required, EPA analytical methods that must be used, proper handling and preservation of samples, necessary sampling supplies, considerations that should be made prior to and during sampling activities in order to collect samples correctly and avoid contamination, various sampling and field-filtration techniques, and field quality assurance sample collection requirements.

The second half of the day, students will engage in hands-on field exercises, where they will be given the opportunity to practice several surface water sampling protocols using various sample collection methods and following the “Clean Hands/Dirty Hands" sampling techniques. Time permitting, sample collection techniques and recommendations for additional sample matrices may be discussed that are specific to the student’s needs and area of interest. See the “Course Topics” area below for topic list.

Lunch will be provided, please dress weather/outdoor appropriate for the field portion of the course. Please bring a pen or pencil, and notepad if you would like to take notes (you may also choose to take notes in your book). Lunch will be provided. Please be aware that the field/sampling portion of the course will entail walking through park grounds, and being around/near water. Please dress appropriately for the outdoor/field portion of the course (closed-toe shoes, etc.)

Intended Audience:

This course is intended for supervisors, field sampling staff, wastewater treatment facility staff, consultants, engineers and students interested in successfully sampling wastewater influents/effluents, stormwater and ambient receiving waters for mercury and metals at EPA and State discharge and water quality criteria level.

Continuing Education Units: 0.70 CEUs


For general information contact Lenore Rooney by telephone at 425-270-3274 or via e-mail at

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