Carroll County calculates a variable stream buffer on all streams, including intermittent streams. These are verified through a County approved environmental site delineation. The average stream valley slope is measured 100 ft, perpendicularly, from the edge of the stream bank. Then, the stream buffer is calculated by adding 2 ft for each one percent of the average stream valley slope, to the minimum stream buffer width (50ft). Wetlands and slopes greater than 25% are not counted toward the calculation. A more thorough description can be found on pages 10-11 of the Carroll County Water Resource Management Manual.