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Considerations on the Disposal of Radioactive Wastes From Nuclear-Powered Ships Into the Marine Environment (1959) / Chapter Skim
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Evaluation of the Outer Continental Shelf (Zones 3a and 3b)
Pages 40-43

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From page 40...
... The probability is extremely small that there will be, on the average, more than 30 of the potential 300 nuclear-powered ships outbound through a single such harbor approach per month. Since the weighted mean ppc, for coastal waters, for the isotope mix in the primary coolant is approximately 10'8, it is evident from a comparison of Table 10 with Tables 3 and 5 that this segment of the continental shelf can safely receive the discharge of warm-up expansion volumes which may have been stored in tanks aboard ship, due to restrictions on the release of this waste into the inshore environment.
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From page 41...
... 8 x 105 .7 3. 7x 10'1 10 JO2 IO3 TABLE 10 Permissible total activity per discharge into a section of the continental shelf 10 miles long extending seaward from 2 miles offshore to 12 miles offshore, as a function of the number of such discharges per month and the partial permissible concentration for the coastal waters.
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From page 42...
... A comparison of the predicted activities in the primary coolant for the SAVANNAH, given in Table 3, with permissible total activity per discharge, given in Table 11, indicates that no undue risk to man would result from the discharge of several thousand gallons of such effluent as a single release into the waters of the continental shelf seaward of a line 12 miles from the coast. In fact, if each of the potential 300 nuclear-powered ships were to make one such release per month into the waters of the continental shelf off the east coast of the United States, the permissible environmental levels would still not be exceeded.
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From page 43...
... = 10'' = 10'7 10» 6.3 x 104 3.6 x 103 10' 1 10 10» 2.0 x 105 2.3 1.1 x 102 1 10 IO2 10'° 6.3 x 10s 7.3 3.6 10 102 10s 10" 2.0 x 106 23 1.1 x 10'1 102 103 104 TABLE 12 Permissible total activity per discharge into the segment of the continental shelf extending seaward from 12 miles offshore to the 200 fathom depth contour, as a function of the number of such discharges per month and the partial permissible concentration for the coastal waters. ppc for Permissible activity for 1 discharge per month (curies)
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Key Terms

  • total activity
  • miles offshore
  • coastal waters
  • permissible total
  • extending seaward

  • spent ion
  • exchange resins
  • permissible activity
  • ion exchange
  • permissible concentration

  • maximum concentration
  • fathom depth
  • ppc values
  • fathom line
  • miles seaward

  • ppc value
  • partial permissible
  • isotope mix
  • single release
  • east coast

  • various values
  • primary coolant
  • depth contour
  • isotopes shown
  • undue risk

  • predicted activities
  • maximum permissible
  • nautilus amounts
  • tanks aboard
  • aboard ship


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