Source: https://texreg.sos.state.tx.us/public/readtac$ext.TacPage?sl=R&app=9&p_dir=&p_rloc=&p_tloc=&p_ploc=&pg=1&p_tac=&ti=30&pt=1&ch=336&rl=1105
Timestamp: 2019-04-26 05:52:32+00:00

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(C) reasonably accessible because of migration beyond the vertical projection of the boundary of the land transferred for long-term government ownership and care in accordance with §336.1131 of this title (relating to Land Ownership of By-Product Material Disposal Sites).
(2) As expeditiously as practicable considering technological feasibility--As quickly as possible considering the physical characteristics of the by-product material and the site, the limits of "available technology" (as defined in this section), the need for consistency with mandatory requirements of other regulatory programs, and "factors beyond the control of the licensee" (as defined in this section). The phrase permits consideration of the cost of compliance only to the extent specifically provided for by use of the term "Available technology."
(3) Available technology--Technologies and methods for emplacing a final radon barrier on by-product material piles or impoundments. This term must not be construed to include extraordinary measures or techniques that would impose costs that are grossly excessive as measured by practice within the industry (or one that is reasonably analogous), (for example, by way of illustration only, unreasonable overtime, staffing, or transportation requirements, etc., considering normal practice in the industry; laser fusion of soils; etc.), provided there is reasonable progress toward emplacement of the final radon barrier. To determine grossly excessive costs, the relevant baseline against which costs must be compared is the cost estimate for tailings impoundment closure contained in the licensee's approved reclamation plan, but costs beyond these estimates shall not automatically be considered grossly excessive.
(4) By-product material--Tailings or wastes produced by or resulting from the extraction or concentration of uranium or thorium from any ore processed primarily for its source material content, including discrete surface wastes resulting from uranium solution extraction processes. Underground ore bodies depleted by such solution extraction operations do not constitute "by-product material" within this definition.
(5) By-product material disposal cell--A man-made excavation and/or construction designed, sited, and built in accordance with the requirements of §336.1129 of this title (relating to Technical Requirements) for the purpose of disposal of by-product material.
(6) By-product material pond--A man-made excavation designed, constructed, and sited in accordance with the requirements of §336.1129 of this title (relating to Technical Requirements).
(7) Capable fault--As used in this section, "Capable fault" has the same meaning as defined in Section III(g) of Appendix A of Title 10 Code of Federal Regulations (CFR) Part 100.
(8) Closure--The post-operational activities to decontaminate and decommission the buildings and site used to produce by-product materials and/or reclaim the tailings or disposal area, including groundwater restoration, if needed.
(9) Closure plan--The plan approved by the agency to accomplish closure. The closure plan consists of a decommissioning plan and may also include a reclamation plan.
(10) Commencement of construction--Initiating activity defined as "construction" or any other activity at the site of a facility subject to regulations in this subchapter that has a reasonable nexus to radiological health and safety.
(11) Compliance period--The period of time that begins when the agency sets secondary groundwater protection standards and ends when the owner or operator's license is terminated and the site is transferred to the state or federal government for long-term care, if applicable.
(I) initiating activity that has no reasonable nexus to radiological health and safety.
(13) Decommissioning plan--The plan approved by the agency to accomplish decommissioning. Decommission is defined in §336.2(29) of this title (relating to Definitions).
(14) Dike--An embankment or ridge of either natural or man-made materials used to prevent the movement of liquids, sludges, solids, or other materials.
(15) Disposal area--The area containing by-product materials to which the requirements of §336.1129(p) - (aa) of this title (relating to Technical Requirements) apply.
(16) Existing portion--As used in §336.1129(i)(1) of this title (relating to Technical Requirements), "existing portion" is that land surface area of an existing surface impoundment on which significant quantities of uranium or thorium by-product materials had been placed prior to September 30, 1983.
(18) Final radon barrier--The earthen cover (or approved alternative cover) over by-product material constructed to comply with §336.1129(p) - (aa) of this title (relating to Technical Requirements) (excluding erosion protection features).
(19) ) Groundwater--Water below the land surface in a zone of saturation. For purposes of this subchapter, groundwater is the water contained within an aquifer as defined in this section.
(C) the constituent is listed in 10 Code of Federal Regulations Part 40, Appendix A, Criterion 13.
(21) In situ leach--Refers to the actual oxidation and dissolution of uranium in an underground formation.
(22) In situ recovery--Refers to the process of stripping, precipitating, de-watering, and drying uranium in a surface processing plant.
(23) Leachate--Any liquid, including any suspended or dissolved components in the liquid, that has percolated through or drained from the by-product material.
(24) Licensed site--The area contained within the boundary of a location under the control of persons generating or storing by-product materials under a license.
(25) Liner--A continuous layer of natural or man-made materials, beneath or on the sides of a surface impoundment that restricts the downward or lateral escape of by-product material, hazardous constituents, or leachate.
(26) Maximum credible earthquake--That earthquake that would cause the maximum vibratory ground motion based upon an evaluation of earthquake potential considering the regional and local geology and seismology and specific characteristics of local subsurface material.
(27) Milestone--An action or event that is required to occur by an enforceable date.
(B) the period of time during which an in situ leach uranium recovery operation is actively leaching or recovering uranium.
(29) Point of compliance--The site-specific location in the uppermost aquifer where the groundwater protection standard shall be met. The objective in selecting the point of compliance is to provide the earliest practicable warning that an impoundment is releasing hazardous constituents to the groundwater. The point of compliance is selected to provide prompt indication of groundwater contamination on the hydraulically downgradient edge of the disposal area.
(30) Principal activities--Activities authorized by the license that are essential to achieving the purpose(s) for which the license is issued or amended. Storage during which no licensed material is accessed for use or disposal and activities incidental to decontamination or decommissioning are not principal activities.
(31) Reclamation--Those activities at a uranium recovery licensed facility that work towards achieving the criteria under this subchapter for release of equipment, facilities and/or the site (including land) to unrestricted use or termination of the license.

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