S.D. Admin. R. 74:56:05:10

Current through Register Vol. 51, page 34, September 9, 2024

Section 74:56:05:10 - Tier 2 assessments

A Tier 2 assessment is a risk-based analysis applying the direct exposure values established under a Tier 1 assessment at the point or points of exposure developed for a specific site and development of values for potential indirect exposure pathways at the point or points of exposure based on site-specific conditions. As part of a Tier 2 assessment, the responsible person must define the vertical and horizontal extent of soil contamination exceeding Tier 1 action levels and groundwater exceeding South Dakota groundwater quality standards.

S.D. Admin. R. 74:56:05:10

22 SDR 86, effective 12/18/1995; transferred from

General Authority: SDCL 34A-2-93, 34A-2-99, 34A-2-101, 34A-12-7.

Law Implemented: SDCL 34A-2-99, 34A-2-101, 34A-12-10.

Tier 1 action levels -- Criteria for calculation, § 74:56:05:07; Groundwater quality standards, ch 74:54:01.