| 03086500 | Mahoning River at Alliance OH | 12/21 21:00 EST | 2.3 | -- | -- | -- | -- | -- | -- | -- |
| 03090500 | Mahoning River bl Berlin Dam nr Berlin Center OH | 12/21 21:15 EST | 2.3 | -- | -- | -- | -- | -- | -- | -- |
| 03091500 | Mahoning River at Pricetown OH | 12/21 21:00 EST | 2.2 | -- | -- | -- | -- | -- | -- | -- |
| 03092090 | West Branch Mahoning River near Ravenna OH | 12/21 21:00 EST | 1.2 | -- | -- | -- | -- | -- | -- | -- |
| 03092460 | West Branch Mahoning River at Wayland OH | 12/21 21:15 EST | 2.4 | -- | -- | -- | -- | -- | -- | -- |
| 03094000 | Mahoning River at Leavittsburg OH | 12/21 21:15 EST | 1.2 | -- | -- | -- | -- | -- | -- | -- |
| 03094704 | Mosquito Creek near Greene Center OH | 12/21 20:45 EST | 0.6 | -- | -- | -- | -- | -- | -- | -- |
| 03095500 | Mosquito Creek bl Mosquito Ck Dam nr Cortland OH | 12/21 20:45 EST | 1.2 | -- | -- | -- | -- | -- | -- | -- |
| 03098600 | Mahoning River above West Ave at Youngstown OH | 12/21 21:15 EST | -- | 695 | 8.1 | 12.9 | -- | -- | -- | -- |
| | Instream | 12/21 21:15 EST | 2.4 | -- | -- | -- | -- | -- | -- | -- |
| 03099500 | Mahoning River at Lowellville OH | 12/21 21:00 EST | 2.9 | 633 | -- | 12.9 | -- | -- | -- | -- |
| 03102950 | Pymatuning Creek at Kinsman OH | 12/21 20:30 EST | 1.2 | -- | -- | -- | -- | -- | -- | -- |
| 03119341 | McGuire Creek above Leesville Lake OH | 12/21 20:45 EST | 1.0 | 358 | -- | -- | -- | -- | -- | -- |
| 03119971 | North Fork McGuire Creek near Carrollton OH | 12/21 20:45 EST | 0.4 | 330 | -- | -- | -- | -- | -- | -- |
| 03119979 | Bear Hole Run near Carrollton OH | 12/21 21:15 EST | 0.6 | 248 | -- | -- | -- | -- | -- | -- |
| 03120820 | Indian Fork at Dellroy OH | 12/21 20:45 EST | 1.6 | 438 | -- | -- | -- | -- | -- | -- |
| 03120869 | Willow Run near Dellroy OH | 12/21 20:45 EST | 1.3 | 215 | -- | -- | -- | -- | -- | -- |
| 03120961 | Unnamed Tributary near Dellroy OH | 12/21 20:45 EST | 1.6 | 470 | -- | -- | -- | -- | -- | -- |
| 03125338 | Stillwater Creek above Piedmont Lake OH | 12/21 20:30 EST | 1.5 | 1,760 | -- | -- | -- | -- | -- | -- |
| 03126395 | Brushy Fork above Clendening Lake OH | 12/21 20:30 EST | 0.5 | 2,170 | -- | -- | -- | -- | -- | -- |
| 03127980 | Clear Fork above Tappan Lake OH | 12/21 20:15 EST | 0.9 | 1,180 | -- | -- | -- | -- | -- | -- |
| 03127986 | Standingstone Fork above Tappan Lake OH | 12/21 20:45 EST | 1.7 | 1,880 | -- | -- | -- | -- | -- | -- |
| 03127989 | Beaverdam Run above Tappan Lake OH | 12/21 20:15 EST | 0.8 | 306 | -- | -- | -- | -- | -- | -- |
| 03140853 | Seneca Fork above Senecaville Lake OH | 12/21 20:15 EST | 2.6 | 556 | -- | -- | -- | -- | -- | -- |
| 03140900 | South Fork above Senecaville Lake OH | 12/21 20:45 EST | 2.7 | 661 | -- | -- | -- | -- | -- | -- |
| 03140950 | Beaver Creek above Senecaville Lake OH | 12/21 20:30 EST | 1.3 | 861 | -- | -- | -- | -- | -- | -- |
| 03145483 | Raccoon Creek near Granville OH | 12/21 21:00 EST | 3.0 | 692 | 8.2 | 12.2 | 10.0 | -- | -- | -- |
| 03159540 | Shade River near Chester OH | 12/21 20:00 EST | 3.3 | -- | -- | -- | -- | -- | -- | -- |
| 03216070 | OHIO RIVER AT IRONTON, OH | 12/21 21:00 EST | 4.5 | 267 | 7.9 | 13.4 | 31.0 | 0.72 | -- | -- |
| 03219500 | Scioto River near Prospect OH | 12/21 21:00 EST | Ssn | Ssn | -- | Ssn | -- | -- | -- | -- |
| | | 12/13 11:30 EST | -- | -- | 8.0 | -- | -- | -- | -- | -- |
| 03220510 | Scioto R. at O'Shaughnessy Dam near Dublin OH | 12/21 20:00 EST | 3.3 | 773 | 8.2 | 13.2 | -- | -- | -- | -- |
| 03221500 | Griggs Reservoir at Columbus OH | 12/21 20:00 EST | 4.6 | -- | -- | -- | -- | -- | -- | -- |
| 03228039 | Scioto River above Shadeville OH | 12/21 20:00 EST | 4.8 | 783 | 8.1 | 12.8 | 5.7 | -- | -- | -- |
| 03228300 | Big Walnut Creek at Sunbury OH | 12/21 20:00 EST | Ssn | -- | -- | Ssn | -- | -- | -- | -- |
| | | 12/13 09:00 EST | -- | Ssn | Ssn | -- | -- | -- | -- | -- |
| 03228400 | Hoover Reservoir at Central College OH |
| | [Water temperature 2 ft below s] | 12/21 20:45 EST | 4.2 | -- | -- | -- | -- | -- | -- | -- |
| 03228805 | Alum Creek at Africa OH | 12/21 21:00 EST | 3.1 | -- | -- | -- | -- | -- | -- | -- |
| 03230427 | Clover Groff Ditch below Alton OH | 12/21 21:00 EST | 1.6 | 596 | 8.2 | 12.5 | 6.6 | 0.9 | -- | -- |
| 03232470 | Paint Creek near Bainbridge OH | 12/21 21:15 EST | 5.1 | -- | -- | -- | -- | -- | -- | -- |
| 03240000 | Little Miami River near Oldtown OH | 12/21 20:30 EST | 3.0 | -- | -- | -- | -- | -- | -- | -- |
| 03242350 | Caesar Creek near Wellman OH | 12/21 21:00 EST | 8.9 | -- | -- | -- | -- | -- | -- | -- |
| 03247041 | E Fk Little Miami River bl Harsha Dam nr Bantam OH | 12/21 21:00 EST | 8.0 | -- | -- | -- | -- | -- | -- | -- |
| 03260500 | Indian Lake at Russells Point OH | 12/21 21:00 EST | 0.9 | -- | -- | -- | -- | -- | -- | -- |
| 03262700 | Great Miami River at Troy OH | 12/21 21:00 EST | 2.5 | -- | -- | -- | -- | -- | -- | -- |
| 03265000 | Stillwater River at Pleasant Hill OH | 12/21 20:00 EST | 2.9 | -- | -- | -- | -- | -- | -- | -- |
| 03267900 | Mad River at St Paris Pike at Eagle City OH | 12/21 20:00 EST | 7.7 | -- | -- | -- | -- | -- | -- | -- |
| 03268100 | Buck Creek bl CJ Brown Reservoir nr Springfield OH | 12/21 21:00 EST | 2.8 | -- | -- | -- | -- | -- | -- | -- |
| 03274000 | Great Miami River at Hamilton OH | 12/21 21:00 EST | 4.7 | -- | -- | -- | -- | -- | -- | -- |
| 04183500 | Maumee River at Antwerp OH | 08/07 12:15 EDT | -- | -- | -- | -- | -- | 1.20 | -- | -- |
| | [at sampler location] | 12/21 20:45 EST | 2.0 | 743 | 7.9 | 13.4 | 22.4 | -- | -- | -- |
| 04188496 | Eagle Creek above Findlay OH | 12/21 20:45 EST | 1.7 | 936 | 7.7 | 10.5 | 22.7 | -- | -- | -- |
| 04192500 | Maumee River near Defiance OH | 12/21 21:00 EST | 2.8 | -- | -- | -- | -- | -- | -- | -- |
| 04193500 | Maumee River at Waterville OH | 12/21 21:00 EST | 0.7 | 872 | 8.4 | 13.6 | 3.8 | -- | -- | -- |
| 04198000 | Sandusky River near Fremont OH | 12/21 20:30 EST | 1.4 | -- | -- | -- | -- | -- | -- | -- |
| 04199000 | Huron River at Milan OH | 12/21 20:30 EST | 0.3 | -- | -- | -- | -- | -- | -- | -- |
| 04199500 | Vermilion River near Vermilion OH | 12/21 21:00 EST | 0.0 | -- | -- | -- | 27.3 | -- | -- | -- |
| 04201500 | Rocky River near Berea OH | 12/21 20:00 EST | 1.4 | -- | -- | -- | -- | -- | -- | -- |
| 04206425 | Cuyahoga River at Jaite OH | 11/04 12:30 EST | 13.7 | -- | -- | -- | -- | -- | -- | -- |
| | [YSI EXO turbidity sensor] | 11/04 13:30 EST | -- | -- | -- | -- | 1.0 | -- | -- | -- |
| 04208000 | Cuyahoga River at Independence OH | 12/21 20:30 EST | 2.4 | -- | -- | -- | 11.2 | -- | -- | -- |
| 04208509 | Cuyahoga River at Rivergate Park at Cleveland OH | 12/21 21:00 EST | 6.0 | -- | -- | -- | -- | -- | -- | -- |
| 04212100 | Grand River near Painesville OH | 12/21 21:00 EST | 1.2 | -- | -- | -- | 27.0 | -- | -- | -- |
| 04213000 | Conneaut Creek at Conneaut OH | 11/29 04:30 EST | -0.3 | -- | -- | -- | -- | -- | -- | -- |
| 395339083130100 | Big Darby Creek above Georgesville OH | 12/21 21:00 EST | 2.5 | 822 | 8.3 | 12.8 | -- | -- | -- | -- |
| 411402080492400 | Mahoning River near U.S. Route 422 at Warren OH | 12/21 20:30 EST | 1.5 | 438 | 7.7 | 13.5 | -- | -- | -- | -- |
| 412122083061400 | Sandusky River below Bradys Island at Fremont OH | 12/21 21:00 EST | 0.9 | 980 | -- | 15.2 | 5.5 | -- | -- | -- |
Discrete water samples data are undergoing modernization with this page no longer being updated with the latest data
starting March 11, 2024 