North Carolina Administrative Code › Title 15A - Environmental Quality › Chapter 02 - Environmental Management › Subchapter C - WELL CONSTRUCTION STANDARDS › Section .0200 - CRITERIA AND STANDARDS APPLICABLE TO INJECTION WELLS › Section 02C .0225 - GROUNDWATER REMEDIATION WELLS AND SYSTEMS

Current through Register Vol. 39, No. 2, July 15, 2024
(a)
				  "Groundwater Remediation Wells" means wells that are used to inject additives,
				  treated groundwater, or ambient air for the treatment of contaminated soil or
				  groundwater. Only additives that the Department of Health and Human Services'
				  Division of Public Health determines not to adversely affect human health in
				  compliance with
				  G.S.
				  130A-5 shall be approved for
				  injection.
(b) "Groundwater
				  Remediation Systems" include infiltration galleries and injection wells. When
				  on-site contaminated groundwater is used, the groundwater remediation injection
				  wells shall be permitted in accordance with
				  G.S.
				  143-215.1A.
(c) Permitted by Rule. The following are
				  permitted by rule pursuant to Rule .0217 of this Section if constructed and
				  operated in accordance with the rules of this Section, all criteria for the
				  specific injection system are met, hydraulic or pneumatic fracturing are not
				  conducted, and the injection wells or injection activities do not result in the
				  violation of any groundwater or surface water standard outside the injection
				  zone:
(1) Passive Injection Systems that use
				  in-well delivery systems to diffuse injectants into the subsurface;
(2) Small-scale Injection Operations used to
				  inject tracers or other additives to remediate contaminant plumes located
				  within a land surface area not to exceed 10,000 square feet;
(3) Pilot Tests conducted to evaluate the
				  technical feasibility of a remediation strategy in order to develop a full
				  scale remediation plan for future implementation, if the surface area of the
				  injection zone wells are located within an area that does not exceed five
				  percent of the land surface above the known extent of groundwater
				  contamination. A pilot test may involve multiple injection wells, injection
				  events, and injectants within the specified area. An individual permit shall be
				  required to conduct more than one pilot test on any separate groundwater
				  contaminant plume;
(4) Air
				  Injection Wells used to inject ambient air to enhance in-situ treatment of
				  groundwater and that meet the following requirements:
(A) The air to be injected shall not exceed
				  the ambient air quality standards set forth in
				  15A NCAC
				  02D .0400 and shall not contain petroleum or
				  any other constituent that would cause a violation of groundwater standards
				  specified in Subchapter 02L; and
(B) Injection wells of this type shall be
				  constructed in accordance with the well construction standards applicable to
				  monitoring wells specified in Rule .0108 of this Subchapter.
(5) In-situ thermal (IST) well
				  systems shall meet the following requirements:
(A) Any IST systems used shall not contain
				  petroleum or any other constituent that would cause a violation of groundwater
				  standards specified in Subchapter 02L; and
(B) Injection wells of this type shall be
				  constructed in accordance with the well construction standards applicable to
				  monitoring wells specified in Rule .0108 of this Subchapter.