ITRC ISM Update Critique (RBrewer April 2021)

Описание: Key Words: Interstate Technology and Regulatory Council, ITRC, Incremental Sampling Methodology, ISM, Gy’s Theory of Sampling, Multi Increment Sample, contaminated soil, contaminated sediment, soil sample collection, sediment sample collection, Roger Brewer

Critique of 2020 ITRC ISM Update. Time Tags to skip through the presentation are posted below. This presentation summarizes a Hawai´i Department of Health (HIDOH) critique of the 2020 ITRC Incremental Sampling Method (ISM) document. The ITRC document introduces the use of Gy’s Theory of Sampling for the collection of environmental data for contaminated soil and sediment. The presentation was originally given to the USEPA ISM Sampling Committee on April 21, 2021. A copy of the detailed critique can be downloaded from the HIDOH Hazard Evaluation and Emergency Response (HEER) Office “Decision Unit” and “Multi Increment Sample” (DU-MIS) investigation webpage at the link indicated in the presentation.

Presentation Time Tags
(0:00) Introduction
(3:03) Hawaii DU-MIS Background
(5:52) Hawaii Involvement in ITRC ISM
(7:11) ISM Update Critique Outline
(8:01) Introduction, Field and Laboratory Implementation
(10:18) Review of Discrete Sample Data Reliability
(18:59) Are “Sampling Units” needed?
(26:50) Summary of Decision Units Categories
(28:10) Discrete Sample Data Reliability Key Points
(29:17) Statistical Concepts and Risk Assessment
(35:55) Early Mining Problems and Gy’s Theory of Sampling
(41:17) Why the Mining Industry Figured it Out and Environmental Industry Didn’t
(44:46) Sampling Theory Basics and Testing of Finite vs Infinite Element Media
(49:20) Discrete vs ISM for Testing of Indoor Air
(52:01) Discrete vs ISM for Testing of Soil and Sediment (including use of 95% UCLs)
(1:06:06) Minimum Number of Increments
(1:08:05) Socially Distanced Increments
(1:10:02) Sample Data Quality and Usability Checklist
(1:11:11) Review of Replicate Data Precision
(1:16:30) Summary Mining Industry vs Environment Industry
(1:18:38) Recommendations
(1:21:21) Questions