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January 27, 2023
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MTCA Cleanup Levels Workshop Establishing Soil, Groundwater, and Surface Water Cleanup Levels Under the Model Toxics Control Act
Course ID: WAPOL - 402
Hosted by Northwest Environmental Training Center

Course Description: This course provides attendees with an in-depth understanding of the procedures for establishing cleanup levels and points of compliance under the Model Toxics Control Act (WAC 173-340). The course covers procedures for establishing cleanup levels using Methods A, B, and C for groundwater, surface water, and soil, including a discussion of recent rule revisions related to dioxins/furans, PCBs, and carcinogenic PAHs. Included is discussion of applying the terrestrial ecological evaluation process to soils at sites. The course will also include an overview of Washington State Department of Ecology's three - and four-phase partitioning models and use of leaching test methods for determining soil concentrations that are protective of groundwater. Attendees will have an opportunity to walk through the process of establishing cleanup standards using case studies. Both instructors have a deep and thorough understanding of MTCA and will set aside time to answer questions at the end of each topic.
*Course prerequisite - WAPOL-401: Introduction to the Model Toxics Control Act.

Registration: Early bird rate $445/$345* until April 16, 2010; $495/$395* thereafter (* reduced tuition is available for Native American tribes; government employees; nonprofits; students; and NAEP, NEBC, NWAEP members). You may register via the link below or by calling the Northwest Environmental Training Center at 206-762-1976.

For general information contact Ingrid Clausen by telephone at 206-762-1976 or via e-mail at

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