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“(4) Intervenors to prefile by April 9, 1973.
“(5) Hearings at Richmond, April 30 through May 9 (if necessary), 1973.
“Please advise me, as soon as possible, whether:
“(1) The Warrenton Courthouse may be made available to us for the public hearing on March 28, 1973 (afternoon and evening, if necessary).
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