Flagler County government revealed a plan to rebuild--or renourish--between 5.5 and 7 miles of beach north and south of the area the Army Corps of Engineers rebuilt last year, for $36 to $40 million, starting as early as October. State and federal grants are in hand to pay for the project. But a majority of county commissioners are reluctant to ensure that the renourishing is not wasted--as it will be if it is not followed by subsequent renouris…