Our project has a very small semi-permanent stream runing through it (i.e., the streams forms only in heavy rainfalls). . The water from such semi-permanent stream will be directed to a temporary sediment basin during construction and later it will be channelized underground thorugh the project and a permanent retention pond will be constructed. Now, I have not found guidance in CGP 2003 on semi-permanent streams. Are we doing the right thing? thanks