Inland Lakes Program

After a hiatus, Ohio EPA started monitoring Ohio’s inland lakes again in 2008. The objectives for monitoring inland lakes are to:

  • Track status and trends of lake quality
  • Determine attainment status of beneficial uses
  • Identify causes and sources of impaired uses
  • Recommend actions for improving water quality in impaired lakes

Ohio EPA currently monitors up to 16 lakes per year.  Priority is placed on lakes used for public drinking water or used heavily for recreation and suspected of being impaired for either of those uses.  Secondary priorities (not currently being addressed because of limited resources) include developing a more robust sampling program, expanding to a wider variety of lakes, exploring the use of remote sensing in the screening of water quality in lakes and attempting to track water quality changes in lakes that might be attributed to Section 319 funding and other watershed water quality improvement efforts.

Ohio EPA participated in U.S. EPA’s National Lake Surveys in 2007 and 2012.

Information on lakes as an emerging program is reported in the Integrated Water Quality Monitoring and Assessment Reports. Sampling procedures are outlined in the 2019 Inland Lakes Sampling Procedure Manual.

Ohio EPA looks for opportunities to partner with the Surface Water Credible Data (Volunteer Monitoring) Program on lake data collection.

The following criteria are considered for selecting lakes to sample:

  1. Identify lakes within the watersheds where TMDL field sampling is occurring
  2. Identify public drinking water lakes or lakes with heavy recreation
  3. Identify possible impaired lakes
  4. Identify lakes that need to be assessed for other programmatic needs


2019 Sampling

2018 Sampling

2017 Sampling

Ohio EPA Division of Surface Water will sample 13 inland lakes (not including special projects) as part of our Inland Lakes Monitoring Program.  They are as follows:

District

TMDL Watershed

County

Lake/Reservoir

Year

CDO

Upper Scioto River

Morrow

Amann Reservoir

2

CDO

Upper Scioto River

Morrow

Amick Reservoir

2

CDO

Sandusky River

Crawford

Outhwaite Reservoir

2

NEDO

Tuscarawas

Tuscarawas

Atwood Lake

2

NEDO

Tuscarawas

Summit

Barberton Reservoir*

2

NWDO

Maumee River

Defiance

Defiance Reservoir

2

NWDO

Huron River Huron
Norwalk Memorial Reservoir
2

NWDO

Sandusky River

Sandusky

Raccoon Creek Reservoir

2

NWDO

Swan Creek

Lucas

 Swanton Reservoir**

1

NWDO

Huron River

Huron

Willard Reservoir

2

SEDO

Raccoon Creek

Vinton

Lake Alma

2

SEDO

NWD

Vinton

Lake Rupert

2

SEDO

Sunfish Creek

Monroe

Woodsfield Reservoir

2

CDO

Special Project

Fairfield/Licking/Perry

Buckeye Lake

Ongoing

NWDO

Special Project

Mercer/Auglaize

Grand Lake St. Marys

Ongoing

         

*     Barberton Reservoir - Expanded sampling frequency to support nutrient reduction modeling study.
**    Swanton Reservoir study will utilize new sampling protocol of 10 samples collected over one sampling season.

2016 Sampling

Ohio EPA Division of Surface Water will sample 27 inland lakes as part of our Inland Lakes Monitoring Program.  They are as follows:

District

TMDL Watershed

County

Lake/Reservoir

Year

CDO

Sandusky River

Crawford

Outhwaite Reservoir

1

CDO

Upper Scioto River

Morrow

Amick Reservoir

1

CDO

Upper Scioto River

Morrow

Amann Reservoir

1

CDO

Olentangy

Delaware

Delaware Reservoir

1

CDO

Little Muskingum Middle Island

Monroe

Woodsfield Reservoir

1

CDO

Muskingum

Muskingum

Cutler Reservoir

1

SWDO Ohio R. Tribs:
Turkey/Straight/Eagle
Brown
Lake Waynoka
 2

SWDO

Ohio R. Tribs: Turkey/Straight/Eagle

Brown

Lake Waynoka Water Supply Reservoir

2

SWDO

Ohio R. Tribs:
Turkey/Straight/Eagle

Brown

 Waynoka Upground Water Supply Reservoir

2

SWDO

Ohio R. Tribs:
Turkey/Straight/Eagle

Scioto

Turkey Creek Lake

1

SEDO

Upper Ohio Shade

Meigs

Forked Run Lake

2

SEDO

Upper Ohio Shade

Washington

Veto Lake

2

SEDO

Raccoon Symmes

Lawrence

Timbre Ridge

1

SEDO

Raccoon Symmes

Gallia

Tycoon Lake

1

SEDO

Raccoon Symmes

Jackson

Jackson Lake

1

SEDO

Raccoon Symmes

Vinton

Lake Alma

1

SEDO

Raccoon Symmes

Vinton

Lake Hope

1

SEDO

Raccoon Symmes

Vinton

Lake Rupert

1

NEDO
 Tuscarawas  Tuscarawas  Atwood Lake
 1
NEDO  Tuscarawas  Summit  Barberton Reservoir
 2
NEDO  Tuscarawas  Carroll  Leesville Lake
 1
NWDO Maumee River
Defiance
Defiance Reservoir
1
NWDO
 Huron River
 Huron  Norwalk Memorial Reservoir
 1
NWDO  Sandusky River
 Sandusky  Raccoon Creek Reservoir
 1
NWDO  Huron River
 Huron
 Willard Reservoir
 1
NWDO  Special Project
 Mercer/Auglaize  Grand Lake St. Marys
N/A
CDO  Special Project
 Fairfield/Licking/Perry  Buckeye Lake
N/A
         

 

2015 Sampling

Ohio EPA Division of Surface Water will sample 18 inland lakes as part of our Inland Lakes Monitoring Program.  They are as follows:

District

TMDL Watershed

County

Lake

Year

SEDO/CDO

Wills Creek

 

Guernsey

Salt Fork Lake (3 )

2

SEDO/CDO

Wills Creek

 

Guernsey

Senecaville Lake (2)

2

SEDO

Wills Creek

Muskingum

Wills Creek Reservoir

2

SEDO

Eastern Ohio River Tributaries

Meigs

Forked Run Lake State Park

1

SEDO

Eastern Ohio River Tributaries

Washington

Veto Lake Wildlife Area

1

CDO

Wills Creek

Muskingum

Fox Lake (New Concord Reservoir)

(PWS)

2

CDO Wills Creek Guernsey Cambridge Reservoir (PWS) 

CDO

Special Project

Mercer/Auglaize

Grand Lake St. Marys

(PWS)

 

NA

CDO

Special Project

Fairfield/Licking/Perry

Buckeye Lake

 

NA

NEDO

Rocky River

Cuyahoga

Coe Lake

(PWS)

2

NEDO

Rocky River

 

Cuyahoga

Wallace Lake

2

NEDO

Mahoning Watershed

Portage

Crystal Lake

2

NEDO

Wolf Creek

Summit

Barberton Reservoir

(PWS)

1

NWDO

Lower Auglaize River

Van Wert

Delphos Reservoir

(PWS)

2

NWDO

Lower Auglaize River

Van Wert

Van Wert Reservoir

(PWS)

2

NWDO

Bad Creek-Maumee Tributary

Fulton

Delta Reservoir #2

(PWS)

1

SWDO

Southern Ohio River Tributaries

Brown

Lake Waynoka

 

1

SWDO

Southern Ohio River Tributaries

Brown

Lake Waynoka Upground Reservoir

1

         

 

2014 Sampling

Ohio EPA Division of Surface Water will sample 20 inland lakes as part of our Inland Lakes Monitoring Program.  They are as follows:

District

Watershed

County

Lake

Year

NEDO

Rocky River Watershed

Cuyahoga

Coe Lake

1

NEDO

Rocky River Watershed

Cuyahoga

Wallace Lake

1

NEDO

Mahoning Watershed

Portage

Crystal Lake

1

NEDO

Mahoning Watershed

Trumbull

Mosquito Creek Lake

2

SEDO

Wills Creek

Guernsey

Senecaville Lake

1

SEDO

Wills Creek

Guernsey

Salt Fork Reservoir

1

SEDO

Wills Creek

Muskingum

Wills Creek Reservoir

1

SEDO

Wills Creek

Muskingum

Ohio Power Pond 9615-010

1

SEDO

Wills Creek

Muskingum

New Concord Village Reservoir*

1

SEDO

Wills Creek

Guernsey

Cambridge City Reservoir **

1

SWDO

Mill Creek

Hamilton

Winton Lake

2

NWDO

St. Joseph TMDL

Williams

Nettle Lake

2

NWDO

St. Joseph TMDL

Williams

McKarns Lake

2

NWDO

St. Joseph TMDL

Williams

Barton Lake

2

NWDO

Tiffin River TMDL

Fulton

Archbold Reservoir #2

2

NWDO

Lower Auglaize River TMDL

VanWert

Van Wert Reservoir #2

1

NWDO

Lower Auglaize River TMDL

Van Wert

Delphos-Gillmor Reservoir

1

CDO

Alum Creek TMDL

Delaware

Alum Creek Reservoir

2

CDO

Alum Creek TMDL

Delaware/Franklin

Hoover Reservoir

2

CDO

Special Project

Fairfield/Licking/Perry

Buckeye Lake

NA

         


2013 Sampling

Ohio EPA Division of Surface Water will sample 13 inland lakes as part of our Inland Lakes Monitoring Program.  They are as follows:

Central District Office (Alum Creek Study Basin)

  • Alum Creek (Year 1) Delaware County
  • Hoover Reservoir (Year 1) Franklin/Delaware Counties

Southwest District Office (East Fork Little Miami River and Mill Creek Study Basins)

  • Winton Woods (Year 1) Hamilton County
  • Stonelick Lake (Year 2) Clermont County

Southeast District Office (Stillwater Creek Study Basin)

  • Piedmont Reservoir (Year 2) Belmont/Harrison Counties
  • Tappan Lake (Year 2) (Cadiz PWS) Harrison County
  • Clendening Reservoir (Year 2) Harrison County

Northwest District Office (St. Joseph River and Tiffin River Study Basins)

  • Archbold Reservoir #2 (Year 2) Fulton County
  • Nettle Lake (Year 2) Williams County

Northeast District Office (Black River Study Basin)

  • Mosquito Creek Reservoir (Year 1) Trumbull County
  • Wellington Upground Reservoir (Year 1) Lorain County
  • Findlay Lake (Year 2) Lorain County
  • Summit Lake (Year 2) Summit County

2012 Sampling

Ohio EPA Division of Surface Water will sample 20 inland lakes as part of our Inland Lakes Monitoring Program.  They are as follows:

Central District Office (Mill Creek Study Basin)

  • Madison Lake(Year 2) Madison County
  • Hargus Lake (Year 2) Pickaway County
  • Deer Creek Lake (Year 2) Pickaway/Fayette Counties
  • Buckeye Lake - Nutrient Reduction Strategy Study. Fairfield/Licking/Perry Counties

Southwest District Office (East Fork Little Miami River Study Basin)

  • Caesar's Creek Lake (Year 2) (Wilmington PWS) Warren/Clinton/Greene Counties
  • Stonelick Lake (Year 1) Clermont County

Southeast District Office (Stillwater Creek Study Basin)

  • Pike Lake (Year 2) Pike County
  • Ross Lake (Year 2) Ross County
  • Caldwell Lake (Year 2) Ross County
  • Stewart Lake (Year 2) Ross County
  • Lake White (Year 2) Pike County
  • Piedmont Reservoir (Year 1) Belmont/Harrison Counties
  • Tappan Lake (Year 1) (Cadiz PWS) Harrison County
  • Clendening Reservoir (Year 1) Harrison County

Northwest District Office (Ten Mile Creek and Maumee Mainstem Study Basin)

  • Lake Olander (Year 2) Lucas County
  • Auglaize Power Reservoir (Year 1) Defiance County
  • Grand Lake St. Marys (Celina PWS) (monitoring in support of alum treatment) Mercer/Auglaize Counties

Northeast District Office (Black River Study Basin)

  • Meander Reservoir (Year 2) (Youngstown PWS) Mahoning/Trumbull Counties
  • Findlay Lake (Year 1) Lorain County

2011 Sampling

The seventeen lakes that were sampled in 2011 are:

Southwest District Office

  • Caesar's Creek Lake (Year 1) (Wilmington PWS) Warren/Clinton/Greene Counties

Southeast District Office

  • Vesuvius (Year 2) Lawrence County
  • Timber Ridge (Year 2) Gallia County
  • Pike (Year 1) Pike County
  • Lake White (Year 1) Pike County
  • Ross Lake ( Year 1) Ross County
  • Caldwell Lake (Year 1) Ross County
  • Stewart Lake (Scioto Trails S.P.) (Year 1) Ross County

Central District Office

  • Madison Lake (Year 1) Madison County
  • Deer Creek Reservoir (Year 1) Pickaway/Fayette Counties
  • Hargus Lake (Year 1) Pickaway County

Northwest District Office

  • Metzger Reservoir (Lima PWS) ( Year 2) Allen County
  • Grand Lake (Celina PWS) (Year 2)  Mercer/Auglaize Counties
  • Lake Olander (Year 1) Lucas County

Northeast District Office

  • Meander Reservoir (Youngstown PWS) (Year 1) Mahoning/Trumbull Counties

2010 Sampling

The sixteen lakes that were sampled in 2010 are:

  • Lake Vesuvius – Lawrence County
  • Metzger Reservoir – Allen County
  • Beaver Creek Reservoir – Seneca County (finish up 5 samples)
  • Akron water supply reservoirs (East Branch Reservoir, LaDue Reservoir and Lake Rockwell) (finish up 5 samples)
  • Barnesville – Belmont County (3 reservoirs)  (finish up 5 samples)
  • Woodsfield – Monroe County  (finish up 5 samples)
  • Timber Ridge -Gallia County
  • Griggs Reservoir – Franklin County  (finish up five samples)
  • O'Shaugnessey Reservoir – Delaware County  (finish up 5 samples)
  • Kiser Lake – Champaign County (finish up 5 samples)
  • Lake Loramie – Shelby County (finish up 5 samples)

Also, Grand Lake St. Marys in Mercer/Auglaize counties was sampled 5 times in 2010 to collect baseline water quality data in conjunction with the multi-agency water quality improvement initiatives.

Buckeye Lake was sampled 5 times again in 2010 in conjunction with microcystin sampling Ohio DNR conducted.

Note: The first two lakes listed for sampling in 2010 were sampled 5 times this year and 5 times in 2011.  All the other lakes listed (except Grand Lake St. Marys and Buckeye Lake) for 2010 were sampled the second, and last, time in 2010.

2009 Sampling

The fifteen lakes that were sampled in 2009 are:

  • Vets Memorial Reservoir (Fostoria Reservoir #6) – Hancock County (finish up five samples)
  • Beaver Creek Reservoir – Seneca County
  • Akron water supply reservoirs (East Branch Reservoir, LaDue Reservoir and Lake Rockwell)
  • Frazier Quarry (Maysville Regional Water District Reservoir) – Muskingum County (finish up five samples)
  • Cutler Lake (Blue Rock Lake) – Muskingum County (finish up 5 samples)
  • Barnesville – Belmont County (3 reservoirs)
  • Woodsfield – Monroe County
  • Griggs Reservoir  – Franklin County
  • O'Shaugnessey Reservoir – Delaware County
  • Kiser Lake – Champaign County
  • Lake Loramie – Shelby County

Note: Lakes sampled in 2009 were sampled 5 times in 2009 and 5 times in 2010 unless otherwise noted.

2008 Sampling

Ohio EPA Division of Surface Water completed its first year of lake sampling in 2008.  The eight lakes that were sampled in 2008 are:

  • Buckeye Lake – Fairfield, Licking, Perry Counties
  • Clear Fork Reservoir – Richland, Morrow Counties
  • Swift Run Lake – Miami County
  • Vets Memorial Reservoir (Fostoria Reservoir #6) – Hancock County
  • Frazier Quarry (Maysville Regional Water District Reservoir) – Muskingum County
  • Dillon Lake – Muskingum County
  • Cutler Lake (Blue Rock Lake) – Muskingum County
  • Deer Creek Lake – Stark County

Ohio EPA’s work to assess lakes began in 1989 with a Clean Water Act Section 314 Lake Water Quality Assessment grant that supported the evaluation of 52 lakes.  Various additional grants enabled the evaluation of 89 more lakes through 1995.  An analysis and determination of beneficial use status for 447 public lakes (greater than 5 acres in surface area) was presented in Volume 3 of the 1996 Ohio Water Resource Inventory (305(b) report).  As part of that report, Ohio EPA developed and applied the Lake Condition Index (LCI) to characterize overall lake health and to assess beneficial use status.

After dedicated U.S. EPA funding for lakes monitoring ended, Ohio EPA monitored only 53 lakes over the next 10 years.  The Ohio LCI became obsolete with the passage of Ohio’s Credible Data Law (House Bill 43 (amended), effective 10/21/2003).  This law requires that all decisions on impairment for surface waters (streams, lakes, wetlands) use only level 3 credible data.  Ohio’s LCI assessment process included a combination of level 2 and level 3 credible data to make impairment decisions.

Ohio EPA began researching ways to re-establish a lakes monitoring program in 2005.  During the 2007 field season, Ohio EPA participated in the U.S. EPA-sponsored National Lakes Survey; 19 Ohio lakes were selected through a probability-based random selection process.  The effort served as a precursor for renewed lake sampling program in Ohio.

Ohio EPA completed our participation in the U.S. EPA sponsored National Lake Survey during the 2007 field season. For more information, see the following links:

2012 Sampling

In 2012, Ohio EPA is partricipating in the National Lake Survey as we did in 2007.  Every five years we participate in this national study to detemine the status of Ohio's inland lakes when compared with other lakes across the country.  The purpose is to obtain a snapshot of lake conditions during one sampling event at each lake, and not to determine the overall quality of the lake. The 16 lakes that were randomly selected for sampling in 2012 are:

  • Lake Loramie
  • Belmont Lake
  • Holiday Lake
  • Lucys Pond (Indian Lake)
  • Caldwell Lake
  • Mogadore Reservoir
  • Beaver Creek Upground Reservoir
  • Vandergrift Lake
  • Lake of Four Seasons
  • Killdeer Upground Reservoir
  • Mystic Lake
  • Hammertown Lake
  • Swift Run Lake
  • Spencer Lake
  • Summit Lake
  • Lake Aquilla