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DESCRIPTION:

Latitude 41°17'31",   Longitude 84°16'52"   NAD27

Defiance County, Ohio, Hydrologic Unit 04100009

Drainage area: 5,545 square miles

Contributing drainage area: 5,545 square miles,

Datum of gage: 657.86 feet above   NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	1990-10-01	2017-09-23
Daily Data
Discharge, cubic feet per second	1924-10-01	2017-09-22	31263
Ammonia (NH3 + NH4+), water, filtered, milligrams per liter as nitrogen	2014-03-01	2016-09-30	945
Ammonia plus organic nitrogen, water, unfiltered, milligrams per liter as nitrogen	2014-03-01	2016-09-30	945
Nitrate plus nitrite, water, filtered, milligrams per liter as nitrogen	2014-03-01	2016-09-30	945
Phosphorus, water, unfiltered, milligrams per liter as phosphorus	2014-03-01	2016-09-30	945
Orthophosphate, water, filtered, milligrams per liter as phosphorus	2014-03-01	2016-09-30	945
Ammonia (NH3 + NH4+), water, dissolved, pounds per day as nitrogen	2014-03-01	2016-09-30	945
Suspended sediment concentration, milligrams per liter	1997-01-08	2016-09-30	2306
Suspended sediment discharge, short tons per day	1997-01-08	2016-09-30	2306
Phosphorus, water, unfiltered, short tons of phosphorus per day	2014-03-01	2016-09-30	945
Ammonia plus organic nitrogen, water, unfiltered, pounds of nitrogen per day	2014-03-01	2016-09-30	945
Orthophosphate, water, dissolved, pounds per day	2014-03-01	2016-09-30	945
Nitrate plus nitrite, water, dissolved, pounds of nitrogen per day	2014-03-01	2016-09-30	945
Daily Statistics
Discharge, cubic feet per second	1924-10-01	2016-12-05	30984
Ammonia (NH3 + NH4+), water, filtered, milligrams per liter as nitrogen	2014-03-01	2016-09-29	944
Ammonia plus organic nitrogen, water, unfiltered, milligrams per liter as nitrogen	2014-03-01	2016-09-29	944
Nitrate plus nitrite, water, filtered, milligrams per liter as nitrogen	2014-03-01	2016-09-29	944
Phosphorus, water, unfiltered, milligrams per liter as phosphorus	2014-03-01	2016-09-29	944
Orthophosphate, water, filtered, milligrams per liter as phosphorus	2014-03-01	2016-09-29	944
Ammonia (NH3 + NH4+), water, dissolved, pounds per day as nitrogen	2014-03-01	2016-09-29	944
Suspended sediment concentration, milligrams per liter	1997-01-08	2016-09-29	2305
Suspended sediment discharge, short tons per day	1997-01-08	2016-09-29	2305
Phosphorus, water, unfiltered, short tons of phosphorus per day	2014-03-01	2016-09-29	944
Ammonia plus organic nitrogen, water, unfiltered, pounds of nitrogen per day	2014-03-01	2016-09-29	944
Orthophosphate, water, dissolved, pounds per day	2014-03-01	2016-09-29	944
Nitrate plus nitrite, water, dissolved, pounds of nitrogen per day	2014-03-01	2016-09-29	944
Monthly Statistics
Discharge, cubic feet per second	1924-10	2016-12
Ammonia (NH3 + NH4+), water, filtered, milligrams per liter as nitrogen	2014-03	2016-09
Ammonia plus organic nitrogen, water, unfiltered, milligrams per liter as nitrogen	2014-03	2016-09
Nitrate plus nitrite, water, filtered, milligrams per liter as nitrogen	2014-03	2016-09
Phosphorus, water, unfiltered, milligrams per liter as phosphorus	2014-03	2016-09
Orthophosphate, water, filtered, milligrams per liter as phosphorus	2014-03	2016-09
Ammonia (NH3 + NH4+), water, dissolved, pounds per day as nitrogen	2014-03	2016-09
Suspended sediment concentration, milligrams per liter	1997-01	2016-09
Suspended sediment discharge, short tons per day	1997-01	2016-09
Phosphorus, water, unfiltered, short tons of phosphorus per day	2014-03	2016-09
Ammonia plus organic nitrogen, water, unfiltered, pounds of nitrogen per day	2014-03	2016-09
Orthophosphate, water, dissolved, pounds per day	2014-03	2016-09
Nitrate plus nitrite, water, dissolved, pounds of nitrogen per day	2014-03	2016-09
Annual Statistics
Discharge, cubic feet per second	1925	2017
Ammonia (NH3 + NH4+), water, filtered, milligrams per liter as nitrogen	2014	2016
Ammonia plus organic nitrogen, water, unfiltered, milligrams per liter as nitrogen	2014	2016
Nitrate plus nitrite, water, filtered, milligrams per liter as nitrogen	2014	2016
Phosphorus, water, unfiltered, milligrams per liter as phosphorus	2014	2016
Orthophosphate, water, filtered, milligrams per liter as phosphorus	2014	2016
Ammonia (NH3 + NH4+), water, dissolved, pounds per day as nitrogen	2014	2016
Suspended sediment concentration, milligrams per liter	1997	2016
Suspended sediment discharge, short tons per day	1997	2016
Phosphorus, water, unfiltered, short tons of phosphorus per day	2014	2016
Ammonia plus organic nitrogen, water, unfiltered, pounds of nitrogen per day	2014	2016
Orthophosphate, water, dissolved, pounds per day	2014	2016
Nitrate plus nitrite, water, dissolved, pounds of nitrogen per day	2014	2016
Peak streamflow	1925-03-15	2015-12-30	87
Field measurements	1990-08-21	2017-08-07	160
Field/Lab water-quality samples	1952-03-21	2017-09-19	1713
Water-Year Summary	2006	2016	11

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