The regulations governing "Assessing the site at closure or change‑in‑service" set forth in 40 CFR 280.72 are hereby incorporated by reference, excluding any subsequent amendments and editions, except that:

1. (1) references to methods and requirements shall include all applicable references and methods listed in 15A NCAC 02N .0504; and

2. (2) the number and location of samples and method of their collection shall be determined in accordance with procedures established by the Division. In establishing procedures, the Division may consider factors such as:

   1. (a) dimensions of the USTs;
   2. (b) type of products stored in the USTs;
   3. (c) method of closure;
   4. (d) type of and length of associated product lines;
   5. (e) number of associated dispensers;
   6. (f) number of associated containment sumps;
   7. (g) methods of field sample analysis and laboratory sample analysis;
   8. (h) potential for vapor intrusion;
   9. (i) proximity to surface waters; and
   10. (j) site conditions such as site geology and hydrology.

History Note: Authority G.S. 143‑215.3(a)(15); 143B‑282(a)(2)(h);
Eff. January 1, 1991;
Amended Eff. June 1, 2017;
Readopted Eff. January 1, 2021.