PROVISIONAL DATA SUBJECT TO REVISION

The Pittsburgh District of the U.S. Army Corps of Engineers has reduced their stream gage maintenance agreement with the U.S. Geological Survey. As a consequence the real-time data for this gage are not checked or verified by the U.S. Geological Survey. We will continue to serve the real-time data on our web pages as a service to our customers. For information or questions regarding real-time data from this gage, contact Charles.E.Stevenson@lrp02.usace.army.mil.

 03097550 MAHONING RIVER AT OHIO EDISON POWER PLANT AT NILES, OH
 LOCATION.--Lat 41°10'21", long 80°45'26", Trumbull County,
     Hydrologic Unit 05030103, on right bank 20 ft downstream from
     Conrail Spur Line, 100 ft downstream from Meander Creek, 0.2 mi
     upstream from Belmont Road, 0.4 mi downstream from Mosquito Creek
     in Niles.
 DRAINAGE AREA.--854 mi².
 PERIOD OF RECORD.--October 1987 to current year.
 GAGE.--Water-stage recorder. Datum of gage is 843.08 ft above sea
     level.
 REMARKS.--Water diverted upstream from station for municipal supply 
     for cities of Niles, Warren, and Youngstown. Some sewage returned 
     to river upstream from station. Water also diverted upstream and
     downstream from station for industrial use, some of which is
     returned to river upstream from station. Flow regulated by Berlin
     Lake, 37 mi upstream, beginning in 1942, by Milton Reservoir, 29
     mi upstream, by Michael J. Kirwan Reservoir, 32 mi upstream on
     West Branch, beginning in 1966 by Mosquito Creek Lake, 11 mi
     upstream, beginning in 1943, by Meander Creek Reservoir. U.S.
     Army Corp of Engineers satellite telemeter at station.