[Code of Federal Regulations] [Title 40, Volume 22] [Revised as of July 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR197.30] [Page 64] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 197--PUBLIC HEALTH AND ENVIRONMENTAL RADIATION PROTECTION STANDARDS FOR YUCCA MOUNTAIN, NEVADA--Table of Contents Subpart B--Public Health and Environmental Standards for Disposal Sec. 197.30 What standards must DOE meet? The DOE must demonstrate that there is a reasonable expectation that, for 10,000 years of undisturbed performance after disposal, releases of radionuclides from waste in the Yucca Mountain disposal system into the accessible environment will not cause the level of radioactivity in the representative volume of ground water to exceed the limits in the following Table 1: Table 1--Limits on Radionuclides in the Representative Volume ------------------------------------------------------------------------ Radionuclide or type of Is natural radiation emitted Limit background included? ------------------------------------------------------------------------ Combined radium-226 and 5 picocuries per Yes. radium-228. liter. Gross alpha activity 15 picocuries per Yes. (including radium-226 but liter. excluding radon and uranium). Combined beta and photon 40 microsieverts (4 No. emitting radionuclides. millirem) per year to the whole body or any organ, based on drinking 2 liters of water per day from the representative volume. ------------------------------------------------------------------------