North Carolina Administrative Code
Title 15A - Environmental Quality
Chapter 13 - SOLID WASTE MANAGEMENT
Subchapter C - INACTIVE HAZARDOUS SUBSTANCE OR WASTE DISPOSAL SITES
Section .0200 - PRIORITIZATION SYSTEM
Section 13C .0201 - PRIORITIZATION
Current through Register Vol. 38, No. 18, March 15, 2024
(a) The Division shall review and evaluate relevant site data for all inactive hazardous substance or waste disposal sites and prioritize those sites using the priority system established in this Section.
(b) Only sites with confirmed contamination or known disposal of hazardous substances shall be scored on the inactive hazardous waste sites priority list. Contamination is confirmed if laboratory analyses show the presence of hazardous substances in groundwater, surface water, air, wastes, or soils at concentrations significantly above background levels. Concentrations are significantly above background if the levels detected are more than 10 times a detected level in the background, or three times the detection limit when the background level is below the detection limit or the background concentration is unknown. Known disposal of hazardous substances shall be defined as:
(c) A site shall be prioritized based on conditions present at the time of evaluation. All prior removal actions shall be considered.
(d) A site shall be evaluated and receive a separate score in each of the following categories:
(e) A total score for the site shall be determined by taking the square root of the sum of the squares of the scores in the four categories in Paragraph (d) and dividing by two. Prioritization shall be based upon the total score.
Authority G.S.
A-310.2; A-310.12;
Eff. June 1, 1989;
Amended Eff. July
1, 1993;
Pursuant to
G.S.
150B-21.3A, rule is necessary without
substantive public interest Eff. June 24,
2017.