The Fairfax County Board of Supervisors on Monday approved spending $1 million to find ways to ensure this summer’s devastating flooding doesn’t repeat itself.

The expenditure, taken from funds carried over from the past fiscal year, would follow a nine-month study by the Army Corps of Engineers into the cause of the recent regionwide disaster. In Huntington, by far the worst-hit area of the county, torrential rains in late June led to a wall of putrid water from Cameron Run inundating scores of homes and causing millions in property damage.