[Code of Federal Regulations]

[Title 40, Volume 24]

[Revised as of July 1, 2006]

From the U.S. Government Printing Office via GPO Access

[CITE: 40CFR191.24]



[Page 12-13]

 

                   TITLE 40--PROTECTION OF ENVIRONMENT

 

         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)

 

PART 191_ENVIRONMENTAL RADIATION PROTECTION STANDARDS FOR MANAGEMENT AND 

DISPOSAL OF SPENT NUCLEAR FUEL, HIGH-LEVEL AND TRANSURANIC RADIOACTIVE 

WASTES--Table of Contents

 

      Subpart C_Environmental Standards for Ground-Water Protection

 

Sec.  191.24  Disposal standards.



    (a) Disposal systems.

    (1) General. Disposal systems for waste and any associated 

radioactive material shall be designed to provide a reasonable 

expectation that 10,000 years of undisturbed performance after disposal 

shall not cause the levels of radioactivity in any underground



[[Page 13]]



source of drinking water, in the accessible environment, to exceed the 

limits specified in 40 CFR part 141 as they exist on January 19, 1994.

    (2) Disposal systems above or within a formation which within one-

quarter (\1/4\) mile contains an underground source of drinking water. 

[Reserved]

    (b) Compliance assessments need not provide complete assurance that 

the requirements of paragraph (a) of this section will be met. Because 

of the long time period involved and the nature of the processes and 

events of interest, there will inevitably be substantial uncertainties 

in projecting disposal system performance. Proof of the future 

performance of a disposal system is not to be had in the ordinary sense 

of the word in situations that deal with much shorter time frames. 

Instead, what is required is a reasonable expectation, on the basis of 

the record before the implementing agency, that compliance with 

paragraph (a) of this section will be achieved.