South Dakota Administrative Rules
Title 74 - Department of Environment And Natural Resources
Article 74:27 - Solid waste
Chapter 74:27:19 - Groundwater monitoring
Section 74:27:19:06 - Detection monitoring procedures

Universal Citation: SD Admin Rules 74:27:19:06
Current through Register Vol. 50, page 114, March 25, 2024

Monitoring is required at all monitoring wells installed in conformance with § 74:27:19:03. The owner or operator shall measure static groundwater elevation at each monitoring well to within 0.01 foot before each sampling event. Sampling procedures must comply with § 74:54:01:06 except that field filtering is not allowed.

The owner or operator shall notify the secretary within 14 calendar days after monitoring detects a statistically significant increase over ambient groundwater levels. If the owner or operator demonstrates according to 40 C.F.R. Part 258, as published on 56 Fed. Reg. 51,022 to 51,028, inclusive (October 9, 1991) that a source other than the facility caused the contamination, detection monitoring may continue. If the owner or operator cannot demonstrate that a source other than the facility caused the contamination, the owner or operator shall initiate an assessment monitoring program required by chapter 74:27:20 within 90 days.

General Authority: SDCL 34A-6-1.6.

Law Implemented: SDCL 34A-6-1.6, 34A-6-1.7.

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