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2 5 4 5 6 7 8 9 10 11 12 IS 14 15 16 17 18 19 20 21 22 23 24 25 1 repairing and replacing water pipe lines and appurtenances under and along said easement strips. Grantee, its successors and assigns, shall have reasonable access within said easement strips for said purposes, but at their sole cost and expense shall be required to take such steps as are required by sound engineering practice to support said railroad tracks and appurtenant facilities, prevent damage thereto or interruption of service thereover. Except in the case of emergency Grantor, its successors and assigns, shall not be entitled to make excavations upon or in the vicinity of said easement strips which might endanger the water I pipe lines and appurtenances therein of the grantee, its successors and assigns, or to remove or disturb any such water pipe lines and appurtenances for the purpose of constructing, maintaining, operat­ing, repairing or replacing said railroad tracks or railroad operat­ing facilities until after 2h hours’ notice to the Grantee, its successors and assigns; and in the case of emergency immediate no­tice of such work shall be given to the agents or employees of the Grantee, its successors and assigns, who can be found nearest to the point of work. Grantor, its successors and assigns, shall not be entitled to temporarily remove or disturb any water pipe lines ex­cept after having given notice hereinbefore provided and unless and until Grantor, its successors and assigns, shall have taken such steps as are required by sound engineering practice to prevent the interruption of water service to customers and the distribution of water to areas then being served by said water pipe lines. If any water pipe lines and appurtenances shall have been EXHIBIT "F" Page.3. . 26