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MDEQ Accepts New Sampling Method for Soil – Incremental&nbspSampling&nbspMethodology

May 3, 2012
Environmental Alert

The Michigan Department of Environmental Quality (MDEQ) Remediation Division (RD) recently announced that it has accepted the incremental sampling methodology for sampling contaminants in soil. Incremental sampling methodology is a soil sampling protocol designed to reduce data variability, reduce laboratory costs and increase sample representativeness. In sum, the goal of incremental sampling is to obtain one representative sample for a decision unit by collecting numerous increments of soil (typically 30-100 increments) that are combined, processed and subsampled according to specific protocols. The resulting composite sample is then analyzed and the results may be compared to screening or action levels. To support implementation of the incremental sampling methodology, MDEQ RD has formed a team - Incremental Sampling Technical and Program Support Team.

Web-Based Guidance Document and Webinar on Incremental Sampling Methodology

The Interstate Technical & Regulatory Council (ITRC), a group of state environmental regulators, federal regulators and other stakeholders (including the regulated community), has issued a web-based guidance document on the incremental sampling methodology. The web-based guidance document is available by clicking here (Incremental Sampling Methodology).

ITRC is also hosting a two-session webinar on incremental sampling methodology. Part one is being held on May 8, 2012 from 2-4:15 p.m. EDT, and part two is being held on May 15, 2012 from 2-4:15 p.m. EDT.