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May 11, 2025

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Watersheds

With the Flow Ohio – Watershed Report for the Week of May 22 to 28, 2023

Low flows signal drought coming

Find your location in one of Ohio’s main drainage areas, read on for details by watersheds within each drainage basin.

Drainage Basins	Low Flows	HABs	Drinking Water Advisories	Hazardous Spills
Lake Erie - South	0	0	2	1
Lake Erie - West	0	4	15	8
Ohio River Tribs	1	0	7	2
Muskingum River	0	0	10	5
Scioto River	1	0	14	3
Great Miami River	1	0	3	7
Totals	3	4	51	26

Table updated May 26 16:00 EDT

Southern Lake Erie Watersheds

1a Grand River Watershed

Flows: capturing runoff from parts of Ashtabula, Lake, Geauga, Portage, Trumbull Counties

Grand River drains 685 sq miles in Lake County; the flow is monitored near Painesville, normal flow in this location is less than 3000 cubic feet per second and 5 ft deep. Minor flooding occurs at this location when the water level (gage) passes 12.5 ft. (updated 02-20-23)

Public Drinking Water Advisories (2) confirmed ongoing as of May 26, 2023

West Farmington Village Public Water Supply (Trumbull) Sensitive population advisory issued by Ohio EPA: exceeds standard for haloacetic acids (HAA5), by-products of disinfection MCL = 0.06 mg/L. This is a community water system serving between 251 and 1000 customers (908 customers) from a surface water source (surface water intake on Grand River, also surface water purchased from Trumbull County) Measured running average HAA5 .061 mg/L.

DFC Mobile Home Park – Jefferson (Ashtabula) Boil Water Advisory has been issued due to measured e.coli microbiological contamination in the well water. Residents of DFC Mobile Home Park are advised to boil water before drinking or use an alternate water source.

Spills (0)

No hazardous spills for the search period of May 15– 21, 2023

1b Ashtabula River - Chagrin River Watershed

Flows: catching parts of Ashtabula, Lake, Cuyahoga, Geauga, Portage Counties

Conneaut Creek drains an area of 175 sq miles in Ashtabula County; the creek is monitored at Conneaut station, the normal flow at this location is below 1000 cfs and 4.5 ft deep; temperature is monitored, flood stage is not reported

Chagrin River drains an area of 246 sq miles of Lake County into Lake Erie. Normal flow at Willoughby station is below 1100 cfs and 4.5 ft deep (flood stage 12 ft)

Unnamed tributary to Chagrin River drains 7.69 sq miles of Cuyahoga County. The flow

at Pepper Pike is unrated, has been measured at 6.75 ft deep
at Mayfield Village is unrated, has measured 1 ft deep (04-10-23)

Euclid Creek drains an area of 5.13 sq miles in Cuyahoga County. The flow

- at South Euclid is unrated, has been 0.75 ft deep; at Cleveland is unrated, has measured around 50 cfs and 2.5 ft deep East Branch at

East Branch Euclid Creek drains 7.11 sq miles in Cuyahoga County. Flow at Richmond Heights is unrated, has been 1.5 ft deep

(section updated 04-10-23)

Public Drinking Water Advisories (0)

Spills (1)

· May 16 - unknown amounts of unknown material and sodium chloride reported spilled in Ashtabula Township – Ashtabula

1c Cuyahoga River Watershed

Flows: parts of Cuyahoga, Summit, Portage, Geauga, Medina Counties

Cuyahoga River drains an area of 788 sq miles in Ohio. With its headwaters in Geauga County, Cuyahoga takes a loop south into Portage and then hooks back north through Summit, passing through Cuyahoga County to discharge into Lake Erie.

At Hiram Rapids, the nearest monitoring station to the headwaters in Geauga County, the normal flow is around 390 cfs and 2.8 ft deep (flood stage 7ft);
at Old Portage, a normal flow is less than 800 cfs and 4.5 feet deep (flood at 10.5ft);
at Jaite station, the flow is unrated, it has been measured at 1360 cfs and 4.9 ft deep, temperature is monitored at this location
at Independence station, normal flow is less than 1800 cfs and 6 ft deep, (flood at 17 ft), temp and specific conductance are measured here;
at the Newburgh Heights station nearest the outlet in Cuyahoga County the flow is unrated, this location has been logged at 2000 cfs; temp is monitored here (updated 03-02-23)

West Creek drains an area of 9.23 sq miles in Cuyahoga County. The flow

at Pleasant Valley Rd near Parma is unrated, it has measured 9.5 ft deep (8.85 ft is minimum operating limit);
at Ridgewood Road, Parma is unrated, it has been known to flow 5 ft deep (flood stage 10ft);
at Brooklyn Heights (nearest to the outlet) is also unrated, we have seen it at 22 cfs and 1.5 ft deep. (updated 03-02-23)

Mill Creek gathers runoff and drains 12.9 sq miles in the Cuyahoga River watershed; the flow

at Garfield Heights is unrated, it can be around 28 cfs and 1.1 ft deep;
at Garfield Parkway flow is unrated, it has been measured at 29.5 cfs and 1.8 ft deep (flood stage 7.5 ft) (updated 03-02-23)

Big Creek drains an area of 35.3 sq miles in Cuyahoga County. The flow at Cleveland is unrated, has been 89 cfs and 3.6 ft deep. (updated 03-02-23)

East Branch Big Creek collects flow from 19.2 sq miles in Cuyahoga County. The flow at Brooklyn is unrated, can be 39 cfs and 2.6 ft deep. (updated 03-02-23)

Brandywine Creek drains an area of 16.4 sq miles in Summit County. The flow near Macedonia is unrated, we have seen it at 50 cfs and 3.7 ft deep, (minor flood stage here is 13 ft). (updated 03-02-23)

Indian Creek drains an area of 4.49 sq miles in Cuyahoga County. The flow at Macedonia is unrated, has been 9 cfs and 1.5 ft deep (flood stage 9.5ft) (updated 03-02-23)

Tinkers Creek drains an area of 83.9 sq miles of Cuyahoga County, flow at Bedford is above normal, 220.66% above mean at 399 cfs and 3.60 ft deep (flood at 9.5 ft). (updated 01/30/23)

Chippewa Creek drains an area of 17.5 sq miles Cuyahoga County before joining the Cuyahoga River. The flow near Brecksville is unrated, it can be around 3 ft deep (updated 03-02-23)

Doan Brook drains an area of 8.2 sq miles in Cuyahoga County. The flow at MLK Jr. Dr Cleveland is unrated, we see it at around 15 cfs and 2 ft deep. (updated 04-10-23)

Public Drinking Water Advisories (0)

Spills (0)

No hazardous spills for the search period of May 15- 21, 2023

1d Black River - Rocky River Watershed

Flows: runs off parts of Lorain, Ashland, Huron, Cuyahoga, Medina Counties

Black River drains an area of 396 sq miles of Lorain County into Lake Erie. Normal flow at Elyria is around 1100 cfs and 4 ft deep. (flood stage 9.5 ft) 2.5°C. Specific conductance 471 µS/cm. (updated 05-12-23)

Rocky River drains an area of 267 sq miles of Cuyahoga County into Lake Erie. Normal flow at Berea is around 300 cfs and 5 ft deep, (flood stage 14 ft), temperature is recorded here (updated 04-12-23)

East Branch Rocky River drains an area of 60.3 sq miles in Cuyahoga County. The flow near Strongsville is unrated, usually around 70 cfs and 6 ft deep when conditions in the area are normal. (update 04-12-23)

Plum Creek drains 15.7 sq miles in Cuyahoga County. The flow near Olmstead Falls is unrated, around 10-12 cfs and 2 ft deep (flood at 8ft). (updated 04-12-23)

Abram Creek drains an area of 8.12 sq miles in Cuyahoga County. The flow

at Kolthoff Dr./Brook Park is unrated, 0.5 ft deep;
at Brook Park is not rated, 1.5 ft deep (min operating limit .19ft) (updated 04-12-23)

Baldwin Creek drains an area of 8.9 sq miles in Cuyahoga County. The flow at Strongsville is unrated, we see this station measuring around 2.5 ft deep. (updated 04-12-23)

Public Drinking Water Advisories (0)

Spills (0)

No hazardous spills for the search period of May 15– 21 2023

2 Western Lake Erie Watersheds

2a Huron River/Vermillion River

Flows: parts of Erie, Huron, Lorain Counties

Vermillion River drains an area of 262 sq miles of Lorain County into Lake Erie just east of Sandusky Bay. Normal flow at the Vermillion monitoring station is around 200 cfs and 2.7 ft deep (flood stage 9ft); (updated 04-12-23)

Huron River drains an area of 371 sq miles of Huron County into Lake Erie east of Sandusky Bay. Normal flow at Milan station is around 300 cfs and 7 ft deep, (flood stage is 18 ft). temp and conductance are detected here(updated 04-12-23)

Old Woman Creek drains 22.1 sq miles in Erie County. At Berlin Rd near Huron, normal flow is 5 cfs and 2 ft deep (updated 04-12-23)

Public Drinking Water Advisories (0)

Spills (1)

May 15 - unknown amounts of petroleum oil reported spilled in Huron Township

2b Sandusky River Watershed

Flows: parts of Sandusky, Seneca, Wyandot, Crawford (4 Main) also parts of Erie, Ottawa, Wood, Huron, Hancock, Hardin, Marion, and Richland counties

Sandusky River drains an area of 1251 sq miles in Crawford and Wyandot Counties. The flow

near Bucyrus in Crawford County normal flow is around 30 cfs and 1 ft deep (floods at 8.5 ft);
near Upper Sandusky normal flow is around 250 cfs and 2 ft deep (flood at 13 ft);
at Fremont, normal flow is up to 1100 cfs and 2.2 ft deep (floods at 10ft); (04-12-23)

Honey Creek drains an area of 149 sq miles of Seneca County into Sandusky River. Normal flow at Melmore in Seneca County is less than 90 cfs and 2.5 ft deep. (04-12-23)

Rock Creek drains an area of 34.6 sq miles in Seneca County into Sandusky River. The flow

at Republic flow is unrated, just a trickle at 1.5 cfs and 3.8 ft deep;
at Tiffin normal flow is around 10 cfs and 3.8 ft deep (updated 04-12-23)

Tymochtee Creek drains an area of 229 sq miles in Wyandot County into Sandusky River. Normal flow at Crawford is around 125 cfs and 2.75 ft deep (flood stage 8.5 ft). (updated 04-12-23)

Public Drinking Water Advisories (1) updated as of May 26, 2023

Tiffin Loader Crane Company – Tiffin – Seneca County - non-transient system less than 250 persons from groundwater source

Monitoring/Reporting advisory - Public water system has provided insufficient monitoring or reporting information.

Contaminant of concern: inorganic chemicals (IOC’s): nitrite

Spills (1)

May 17 - unknown amounts of green material reported spilled in Clyde - Sandusky - Unnamed waterbody affected *

2c Blanchard River Watershed

Flows: drains parts of Hardin, Hancock, Putnam, Seneca, Allen, Wyandot Counties

Blanchard River drains 756 sq miles of Hancock and Putnam Counties into Auglaize River and on to Lake Erie. The flow measured

nearest the headwaters below Mt. Blanchard flow is unrated, around 50 cfs and 3.3 ft deep (flood at 14 ft);
above Findlay flow is unrated, 40 cfs and 5.5 ft deep;
near Findlay normal flow is around 100 cfs and 1.5 ft deep.
at Gilboa in Putnam County flow is unrated, common to see this around 150 cfs and 5 ft deep;
at Ottawa in Putnam County flow is unrated, can be around 220 cfs and 8 ft deep when upstream conditions are normal;
near Dupont flow is unrated, around 500 cfs and 9 ft deep (updated 04-12-23)

Lye Creek drains an area of 18.8 sq miles. The flow above Findlay is unrated, starts out around 6 cfs and 1.5 ft deep (flood stage is 6ft). (04-12-23)

Eagle Creek drains an area of 51 sq miles in Hancock County. Flow above Findlay is unrated, commonly 15 cfs and 3.4 ft deep when (flood stage is 9ft) temp and conductance are measured here (updated 04-12-23)

Riley Creek drains an area of 70.3 sq miles in Putnam County. The flow below Pandora is unrated, around 40 cfs and 3.7 ft deep. (updated 04-12-23)

Public Drinking Water Advisories (1) confirmed ongoing as of May 26, 2023

McComb Village – McComb – Hancock County – Community system serving 1001 – 3300 persons – surface water source

Sensitive population advisory – disinfection byproducts – haloacetic acids

You do not need to use an alternative (e.g. bottled) water supply. However, if you have specific health concerns, consult your doctor.

Spills (1)

May 17 - unknown amounts of diesel fuel and 5 gallons of sulfuric acid reported spilled in Liberty Township -Hancock

2d Cedar River-Portage River Watershed

Flows: catches parts of Hancock, Wood, Seneca, Sandusky, Ottawa Counties

Portage River drains an area of 494 sq miles of at Sandusky County. The flow

at Woodville normal flow is around 350 cfs and 3.5 ft deep (flood stage 9ft) temp is recorded here;
near Elmore the flow is unrated, commonly around 500 cfs and 3.5 ft deep when flow at Woodville is normal (flood stage 12 ft) (updated 04-12-23)

Public Drinking Water Advisories (0)

Spills (1)

May 17 - unknown amounts of manure reported spilled in Lake Township - Wood

2e Auglaize River Watershed

Flows: washes parts of Defiance, Fulton, Henry, Lucas, Paulding, Williams, Wood and Allen Counties

Auglaize River drains an area of 2318 sq miles into Maumee River, where it empties into the western part of Lake Erie. The flow station

closest to headwaters is at Kossuth in Allen County. Flow here is unrated, around 135 cfs and 5.5 ft deep;
near Fort Jennings station normal flow is around 200 cfs and 3 ft deep (flood stage 13 ft);
near Dupont flow is unrated, 15 ft deep is standard;
near Defiance normal flow is under 2000 cfs and 8 ft deep (flood stage 21 ft) (updated 04-12-23)

Little Flat Rock Creek drains an area of 15.2 sq miles in Paulding County into Auglaize River. The flow near Junction is unrated, around 6 cfs and, 2.5 ft deep. (updated 04-12-23)

Little Auglaize River drains an area of 401 sq miles in Paulding County into Auglaize River. The flow at Melrose is unrated, common to see this around 380 cfs and 13.5 ft deep. (updated 04-12-23)

Public Drinking Water Advisories (4) confirmed ongoing as of May 26, 2023

Van Wert City – Van Wert – Van Wert County – Community system serving 10,001 up to 50,000 persons – surface water source

Sensitive Populations Advisory - Disinfection Byproducts (DBPs) - Trihalomethanes, total

You do not need to use an alternative (e.g. bottled) water supply. However, if you have specific health concerns, consult your doctor.

Locational running annual average of 0.083 mg/L at DS201 and 0.081 mg/L at DS202 during the July 1 to September 30, 2022 time period. MCL = .08 mg/L

Some people who drink water containing trihalomethanes in excess of the MCL over many years may experience problems with their liver, kidneys, or central nervous systems, and may have an increased risk of getting cancer.

Grover Hill Elementary School – Paulding – Paulding County – Non-Transient system serving between 251 and 1000 persons – groundwater source

Do not Drink – sensitive population – inorganic chemicals - fluoride

Children under nine should be provided with alternative sources of drinking water or water that has been treated to remove fluoride in order to lessen the risk of cosmetic discoloration of their permanent teeth. MCL = 4 mg/l and Secondary MCL = 2 mg/l

Major source: Erosion of natural deposits; Water additive; Discharge from fertilizer and aluminum factories

Oakwood Village – Oakwood – Paulding County – Community system serving between 251 and 1000 persons – groundwater source

Do Not Drink - Sensitive Populations – for inorganic chemicals contaminant – fluoride

The result of the 2019 fluoride sample was 2.07 mg/L. Verification of public notice was received on February 2, 2021.

Major source: Erosion of natural deposits; Water additive; Discharge from fertilizer and aluminum factories

Waynesfield Village – Waynesfield – Auglaize County - Community system serving between 251 and 1000 persons – groundwater source

Do Not Drink - Sensitive Populations – for inorganic chemicals contaminant – fluoride

Major source: Erosion of natural deposits; Water additive; Discharge from fertilizer and aluminum factories

Spills (2)

May 16 - unknown amounts of milk and sludge reported spilled in Delphos – Allen
May 18 - unknown amounts of corrosive anhydrous ammonia reported spilled in Shawnee Township - Allen

2f - Lower Maumee River Watershed

Flows: streams from parts of Defiance, Fulton, Henry, Lucas, Paulding, Williams, Wood Counties

Maumee River drains an area of 6330 sq miles of Ohio State. The lower portion normal flow at Waterville flow is around 4000 cfs and 4.5 ft deep; temp and conductance measured here (flood stage 11 ft) (updated 04-12-23)

Ottawa River drains an area of 350 sq miles in Lucas County directly into western Lake Erie. The flow

near Lima is unrated, commonly around 15 cfs and, 11.5 ft deep;
near Kalida is unrated, around 200 cfs and 5 ft deep.
University of Toledo at Toledo, normal flow is around 120 cfs and 4 ft deep (flood stage 14.5 ft) (update 04-12-23)

Wolf Creek drains an area of 24.8 sq miles in Lucas County. The flow at Holland is unrated, around 20 cfs and 2 ft deep (flood stage 13 ft). (updated 04-12-23)

West Creek drains an area of 15.5 sq miles of Henry County before joining the Maumee River. Normal flow near Hamler is around 12 cfs and 3.5 ft deep. (updated 04-12-23)

South Turkeyfoot Creek drains an area of 116 sq miles of Henry County before joining the Maumee River. Flow at Shunk is unrated, commonly around 140 cfs and 2.5 ft deep. (updated 04-12-23)

Public Drinking Water Advisories (5) confirmed ongoing as of May 26, 2023

Leipsic Village – Leipsic – Putnam County – Community system serving between 1001 and 3,300 persons with groundwater

Do Not Drink - Sensitive Populations – for inorganic chemicals contaminant – fluoride

The 2019 fluoride result was 2.68 mg/L. The annual Public Notice was delivered in the Consumer Confidence Report in March 2021. MCL = 4 mg/L Secondary MCL = 2 mg/L

Whispering Winds Mobile Home Community – Grand Rapids – Lucas County - Community system serving less than 250 persons from a groundwater source

Do Not Drink - Sensitive Populations – for inorganic chemicals contaminant – fluoride

LHS Maumee Youth Center - Liberty Center – Henry County - Community system serving less than 250 persons from a groundwater source

Do Not Drink - Sensitive Populations – for inorganic chemicals contaminant – fluoride

The annual average fluoride concentration in 2020 was 3.06 mg/L.

Holgate Village - Holgate – Henry County – community system serving between 1001 and 3,300 from a groundwater source

Sensitive Population Advisory – Exceeds standards for Disinfection Byproducts – Trihalomethane - By-product of drinking water chlorination

You do not need to use an alternative (e.g. bottled) water supply. However, if you have specific health concerns, consult your doctor.

Locational running annual average of 0.101 mg/L at DS201 and 0.106 mg/L at DS202 during the July 1 to September 30, 2022 time period.

Do Not Drink - Sensitive Populations – for inorganic chemicals contaminant – fluoride

McGuffey Village – McGuffey – Hardin County – community system serving between 251 and 1000 persons from a groundwater source

Do Not Drink - Sensitive Populations – for inorganic chemicals contaminant – fluoride

Spills (2)

May 18 - 700 lbs of sodium hypochlorite reported spilled in Oregon - Lucas - Maumee River affected *
May 18 - Fish kill noted in Toledo - Lucas - Maumee River affected *

2g Upper Wabash River Watershed

Flows: from parts of Mercer, Darke Counties

The headwaters of the Wabash River are in Ohio, however, USGS does not monitor flows on this system in the state of Ohio. Spills and weather incidents in this area will be noted as they occur, the residue flows west out of state.

Public Drinking Water Advisories (0)

Spills (0)

No hazardous spills for the search period of May 15^th – 21^th 2023

2h St. Mary’s River Watershed

Flows from Mercer, Van Wert, Auglaize

St. Mary’s River drains an area of 386 sq miles in Mercer and Van Wert Counties. From the headwaters in Mercer County, St. Mary’s flows west into Indiana into the Maumee River, which crosses back into Ohio and empties into Lake Erie. The flow

at Rockford is flow is unrated, around 350 cfs and 5.5 ft deep (flood stage 13 ft);
at Walcot Street at Willshire flow is unrated, around 500 cfs and 5 ft deep. (updated 04-12-23)

Chickasaw Creek drains an area of 16.4 sq ft of Mercer County. Normal flow at St Marys is around 1 cfs and 3 ft deep (update 04-12-23)

Public Drinking Water Advisories (1) confirmed ongoing as of May 26, 2023

Marion Local High School – Maria Stein – Mercer County – non-transient system serving between 251 and 1000 persons with groundwater

Do Not Drink Advisory for Sensitive Populations – for exceed standards inorganic chemicals contaminant – fluoride

The result of the sample collected on August 15, 2018 was 2.07 mg/L.

Major source: Erosion of natural deposits; water additive; Discharge from fertilizer and aluminum factories

Hazardous Algae Blooms (4) Recreational Public Health Advisories have been issued for the following beaches effective May 15, 2023

Grand Lake – St Marys Camp - sampling done by Ohio Dept of Natural Resources on May 21 indicates e.coli at 53.8 cfu/100ml

Grand Lake – Windy Point - sampling done by Ohio Dept of Natural Resources on May 21 indicates e.coli at 17.1 cfu/100ml

Grand Lake – East Main Beach - sampling done by Ohio Dept of Natural Resources on May 21 indicates e.coli at 9.8 cfu/100ml

Grand Lake – West Main Beach - sampling done by Ohio Dept of Natural Resources on May 21 indicates e.coli at 31.36 cfu/100ml

Spills (0)

No hazardous spills for the search period of May 15– 21, 2023

2i Upper Maumee River Watershed

Flows: parts of Paulding and Defiance Counties

Maumee River drains an area of 2129 sq miles of Paulding County. The flow

at Antwerp in Paulding County normal flow is around 1900 cfs and 9 ft deep; temp and conductance are collected here;
near Defiance normal flow is around 2800 cfs and up to 3 ft deep (flood at 14 ft), temp is recorded here (flood stage 14 ft)(updated 04-12-23)

Platter Creek drains an area of 19.5 sq miles of Defiance County into Maumee River. Flow near Sherwood is unrated, commonly around 10 cfs and 2 ft deep. (updated 04-12-23)

Public Drinking Water Advisories (3) locations confirmed ongoing as of May 26, 2023

Hamler Village – Marion St – Henry County – this is a community system serving between 251 and 1000 persons from a groundwater source

Dec 6, 2021 - Sensitive Population Advisory – Exceeds standards for Disinfection Byproducts – Trihalomethane - By-product of drinking water chlorination

Locational running annual average of 0.120 mg/L at DS201 and 0.084 mg/L at DS202 during the July 1 to September 30, 2022 time period. MCL = .08 mg/L

Jan 1, 1992 - Sensitive Population Advisory – Exceeds standards for inorganic chemical - fluoride –

The most recent fluoride result was 2.39 mg/L in 2018. The most recent distribution of the public notice was in July 2020.

Hamler Village – Hubbard St – Henry County - community system serving between 251 and 1000 persons with groundwater source

Dec 6, 2021 - Sensitive Population Advisory – Exceeds standards for Disinfection Byproducts – Trihalomethane - By-product of drinking water chlorination

Locational running annual average of 0.120 mg/L at DS201 and 0.084 mg/L at DS202 during the July 1 to September 30, 2022 time period. MCL = .08 mg/L

Jan 1, 1992 - Sensitive Population Advisory – Exceeds standards for inorganic chemical - fluoride –

The most recent fluoride result was 2.39 mg/L in 2018. The most recent distribution of the public notice was in July 2020.

Campbells Soup Supply Co – Napoleon – Henry County – non-transient system serving between 1001 and 3300 persons with surface water

Sensitive Population Advisory – Exceeds standards for Disinfection Byproducts – Trihalomethane - By-product of drinking water chlorination

You do not need to use an alternative (e.g. bottled) water supply. However, if you have specific health concerns, consult your doctor.

Locational running annual average of 0.112 mg/L at DS201 and 0.087 mg/L at DS202 during the July 1 to September 30, 2022 time period. MCL = .08 mg/L

Spills (0)

No hazardous spills for the search period of May 15– 21, 2023

2j Tiffin River

Flows: wetting parts of Williams, Defiance Counties

Tiffin River flows south and gathers in runoff from an area of 563 sq miles in Williams and Defiance Counties before joining the Maumee River which empties into the western basin of Lake Erie. The flow monitoring station nearest the headwaters is located

at Stryker in Williams County: normal flow here is around 230 cfs and 5.5 ft deep (flood stage 11 ft)
near Evansport, normal flow is around 250 cfs and 12 ft deep. (updated 04-12-23)

Bean Creek drains an area of 206 sq miles in Fulton County. Normal flow at Powers is around 100 cfs and 8.5 ft deep. (flood stage 15 ft) (updated 04-12-23)

Unnamed tributary to Lost Creek drains an area of 4.23 sq miles in Defiance County. Normal flow near Farmer is 5 cfs and 1.50 ft deep (updated 04-12-23)

Public Drinking Water Advisories (0)

Spills (0)

No hazardous spills for the search period of May 15– 21, 2023

2k St. Joseph River

Flows: Williams, Defiance, Lucas

St. Joseph River drains an area of 610 sq miles in Defiance County. Normal flow at Newville is around 300 cfs and 5.5 ft deep (flood stage 12 ft) (updated 04-12-23)

Public Drinking Water Advisories (0)

Spills (0)

No hazardous spills for the search period of May 15– 21, 2023

3 Ohio River Tributaries

3a Shenango River Watershed

The paddle-popular Shenango River system originates in Pennsylvania’s Shenango Valley. The river flows in and out of northeast Ohio, winding its way through west PA on its way down to meet the Ohio River. “The Shenango River Watchers is a 501(c)(3) non-profit watershed group formed to restore and protect the environmental, scenic, and recreational attributes of the Shenango River Watershed”, mission statement of the award winning group that organizes clean-up events and an annual Thanksgiving Day 5k Gobble Wobble, taking off from Hermitage, PA. The group has information resources for paddlers on their website www.shenangoriverwatchers.org.

Flows: caught from parts of Ashtabula, Trumbull, Mahoning

USGS does not have river monitors placed on the Shenango River on the Ohio side of the border, but the following systems flowing into the Shenango River are monitored:

Pymatuning Creek drains an area of 96.7 sq miles in Trumbull County to join the Shenango River across the state line in Pennsylvania. The flow at Kinsman in Trumbull County is generally around 8 ft deep, temperature and conductance are measured here (04-12-23)

Shenango River (upper) drains an area of 584 sq miles including parts of Trumbull County in Ohio. The river flows on the PA side of the border, flow

at Pyamatuning Dam normal flow is around 500 cfs and 5 ft deep;
at Sharpsville normal flow is 1200 and under 4 ft deep (flood stage 6.8ft). temperature is measured here (04-12-23)

Low Flows (0)

Public Drinking Water Advisories (0)

Spills (0)

No hazardous spills for the search period of May 15– 21 2023

3b Mahoning River

Flows: draining parts of Stark, Mahoning, Trumbull

Mahoning River drains an area of 978 sq miles in portions of Stark and Trumbull Counties as it flows west to east, exiting the state via Trumbull County and joining Shenango River before reaching the Ohio River.

at Alliance, nearest the headwaters in Stark County the flow is not rated, commonly 4 ft deep, temperature is recorded here;
below Berlin Dam near Berlin Centre flow is unrated, around 500 cfs and 3 ft deep (flood stage 5.4ft), temp sensor available here;
at Pricetown in Mahoning County normal flow is around 600 cfs and 4 ft deep (flood stage 8.1ft), temp sensor here;
at Leavittsburg normal flow is around 1000 cfs and 4.8 ft deep (flood stage 12.5), temp here also;
below West Ave at Youngstown normal flow is 450 cfs and 3 ft deep (flood stage 14ft) temp and conductance monitors here;
at Lowellville the flow is unrated, around 1700 cfs and 4 ft deep with temp and conductance sensors here (04-18-23)

West Branch Mahoning River drains an area of 82 sq miles in Portage County. The flow

near Ravenna is 2 ft deep, water temp monitor here;
at Wayland flow is unrated, around 180 cfs and 4.5 ft deep, temp is monitored here (updated 04-18-23)

Crab Creek drains an area of 14 sq miles in Mahoning County before joining the Mahoning River at Youngstown. Normal flow at Youngstown is 4 ft deep (flood stage 12 ft). (updated 04-18-23)

Mosquito Creek drains an area of 97.5 sq miles in Trumbull County before joining the Mahoning River south of Warren City.

the headwaters, near Greene Centre, flow is unrated, around 7 cfs and 5 ft deep, temperature sensor here;
flow below Mosquito Creek Dam near Cortland is unrated, around 90 cfs and 1.8 ft deep (flood stage 4.5 ft) temp sensor here. (updated 04-18-23)

Eagle Creek drains an area of 97.6 sq miles in Trumbull County, exiting the state before joining Shenango River. Normal flow at Phalanx Station in Trumbull County is around 100 cfs and 5 ft deep (flood stage 9.5 ft) (updated 04-12-23)

Low Flows (1)

May 25 10:30 am EDT Mahoning River is flowing much below normal at Leavittsburg - stream depth is down to 2.79 ft and flow volume is 218 cubic feet per second; flowing much below normal below West Ave at Youngstown - measured downstream of Leavittsburg the flow depth is 1.22 ft deep at 364 cubic feet per second

Public Drinking Water Advisories (1) confirmed ongoing as of May 26, 2023

Pleasant Valley Church - Niles (Trumbull) Do not drink – sensitive population advisory has been issued by Ohio EPA for the Pleasant Valley Church Public Water System in Niles, Trumbull County for lead and copper in excess of the maximum contaminant level. This is a non-transient, non-community system serving under 250 people. Note from OEPA, The action level for lead has been exceeded for the July ― December 2022 monitoring period.

Spills (1)

May 19 - unknown amounts of fuel oil reported spilled in Paris Township – Portage

3c Little Beaver Creek Watershed

Flows: catching parts of Jefferson, Carroll, Columbiana, Harrison Counties

Little Beaver Creek drains an area of 496 sq miles of Columbiana County into the Ohio River. The normal flow at East Liverpool is around 500 cfs and 3.8 ft deep. (04-28-23)

Yellow Creek drains an area of 147 sq miles in Jefferson County. Flow

at Amsterdam flow is unrated, presenting around the 1.9 ft mark;
near Hammondsville, normal flow is around 200 cfs and 2.3 ft deep (04-24-23)

Short Creek drains an area of 123 sq miles in Jefferson County. Flow

at Dillonvale station, normal flow is around 1000 cfs, 2.5 ft deep (Flood Stage 9ft). (04-24-23)

Public Drinking Water Advisories (0)

Spills (0)

No hazardous spills for the search period of May 15– 21 2023

3d Wheeling Creek Watershed (including Captina Creek)

Flows: catching parts of Belmont, Monroe Counties

Wheeling Creek drains an area of 97sq miles in Belmont County. Flow is normal at around 135 cfs and, 1.8 ft deep (Flood stage 6ft). (03/09/23)

Captina Creek drains an area of 127 sq miles in Belmont County. Normal flow for the station at Armstrong Mills is 120 cfs and 4.65 ft deep, flood stage is unreported at this location.

Public Drinking Water Advisories (2) Confirmed ongoing at of May 26, 2023

Mount Pleasant (Jefferson) Do not drink – sensitive population advisory (ongoing) has been issued by Ohio EPA for the Mount Pleasant Public Water System for lead and copper in excess of the maximum contaminant level. This is a groundwater source, community system serving 251-1000. *

Brilliant (Jefferson) Do not drink – sensitive population advisory (ongoing) has been issued by Ohio EPA for the Cardinal Operating Company 1, 2 and 3 Public Water Systems for lead and copper in excess of the maximum contaminant level. This is a non-transient, non-community system serving under 250 people. *

*Lead poses the greatest risk to young children and pregnant women. The CDC recommends children and pregnant women use bottled water or water from a filtration system that has been certified by an independent testing organization to reduce or eliminate lead for cooking, drinking and baby formula preparation.

Spills (1)

May 16 - 40 gallons of transformer oil reported spilled in Mingo Junction – Jefferson

3e Shade River Watershed

Flows: parts of Meigs County

Shade River drains an area of 156 sq miles in Meigs County. The monitoring station located near Chester is unrated, we have seen it at 6 ft deep (flood stage 17ft deep). Temperature is monitored here. (03/02/23)

Public Drinking Water Advisories (0)

Spills (0)

No hazardous spills for the search period of May 15– 21 2023

3f Hocking River Watershed

Flows: contains parts of Athens, Hocking, Fairfield Counties

Hocking River drains an area of 943 sq miles in Hocking County; the station

at Enterprise in Hocking, normal flow is 460 cfs and 2.5 ft deep (flood stage 12ft);
at Athens, normal looks to be around the 1100 cfs mark and, 5.7 ft deep (flood stage 20ft). (03/02/23)

Clear Creek drains an area of 89 sq miles in Hocking County, joining Hocking River; at the station near Rockbridge in Hocking County, a normal flow is around 90 cfs and 1.5 ft deep (04-12-23)

Public Drinking Water Advisories (3) confirmed ongoing as of May 26, 2023

Berne Station Public Water System – Lancaster – Fairfield County – non-community system serving under 250 persons from a groundwater source

Boil Water Advisory – exceeds standards for microbacterial contamination – e.coli – source human and animal fecal waste

MCL = confirmed presence of e.coli

Nelsonville Public Water System – Nelsonville – Athens County – community system serving 3,301 to 10,000 persons from a groundwater source

Sensitive Population Advisory – Exceeds standards for Disinfection Byproducts – Trihelomethane - By-product of drinking water chlorination

You do not need to use an alternative (e.g. bottled) water supply. However, if you have specific health concerns, consult your doctor.

Locational running annual average of 0.086 mg/L for the April 1 to June 30, 2022 time period MCL = .08 mg/L

Amanda Village Public Water System – Amanda – Fairfield County – community system serving 251 – 1000 customers from a groundwater source has voluntarily issued a water conservation advisory, year-round and ongoing. Asking residents to voluntarily conserve water and water yards and plants from 4-10 pm on Tues, Thurs, and Sat. No car washing, pool filling or power washing anything.

Spills (0)

No hazardous spills for the search period of May 15– 21 2023

3g Raccoon Creek – Symmes Creek Watershed

Flows: rolling over parts of Hocking, Athens, Meigs, Vinton, Jackson, Gallia Counties

Raccoon Creek drains an area of 585 sq miles in Gallia County. Normal flow at Adamsville is 500 cfs and 5.5 ft deep (flood stage 21ft). (04-12-23)

Symmes Creek drains 302 sq miles of Lawrence County into the Ohio River; at Aid, the flow is unrated, 250 cfs and 7 ft deep (flood stage 19ft deep). (04-12-23)

Public Drinking Water Advisories (1) confirmed ongoing as of May 26, 2023

Majestic Oaks Lodge (Hocking County) Boil Water Advisory (ongoing) has been issued for the Majestic Oaks Lodge Public Water system for the detected presence of e.coli microbiological contamination. This is a groundwater source for a non-community system serving less than 250 persons.

coli are bacteria whose presence indicates that the water may be contaminated with human or animal wastes. Microbes in these wastes can cause diarrhea, cramps, nausea, headaches, or other symptoms. They may pose a special health risk for infants, young children, and people with severely compromised immune systems.

Spills (0)

No hazardous spills for the search period of May 15– 21 2023

3h Brush Creek - White Oak Creek Watershed

Flows: we are talking about rainfall and snowmelt off part of Brown County

White Oak Creek drains an area of 208 sq miles in Brown County; the flow above Georgetown is unrated, we have seen it at 67 cfs and 4.3 ft deep. (03/02/23)

Brush Creek drains an area of 387 sq miles in Adams County. Normal flow at West Union is around 330 cfs and 3.2 ft deep. (updated 03/02/23)

Public Drinking Water Advisories (0)

Spills (0)

No hazardous spills for the search period of May 15– 21 2023

3i Laughery Creek Watershed

Flows: rainfall and snowmelt from central Butler and Hamilton Counties

Middle Ohio- Laughery Creek drainage area occupies just over 900 000 acres in Ohio, Kentucky and Indiana. The flow monitoring stations in Ohio are found on Mill Creek.

Mill Creek drains an area of 115 square miles in Butler and Hamilton Counties. The flow

- at Evendale is unrated, it can be 50 cfs and, 5 ft deep (flood stage 12ft)

- at Kemper Road at Sharonville can be 3.6 ft deep;

- at East Sharon Rd in Sharonville the flow is unrated, we have recorded it at 222 cfs, and 6.6 ft deep;

- at Reading flow is not ranked, we have it at 5 ft deep in average conditions;

- at Carthage the flow is unrated, it has been known to flow at 73 cfs and 5.8 ft deep (03/02/23)

West Fork Mill Creek drains an area of 29.9 sq miles in Hamilton County. The Reservoir near Greenhills is commonly around 675 ft deep. (updated 03/02/23)

Sharon Creek drains an area of 5.39 sq miles miles in Hamilton County. The flow at Sharonville can be around 1.7 ft deep in average conditions. (updated 03/02/23)

Congress Run drains an area of 3.88 sq miles in Hamilton County. The flow near Carthage is unrated and can get to 3.5 ft deep when conditions are average. (updated 03/02/23)

Public Drinking Water Advisories (0)

Spills (0)

No hazardous spills for the search period of May 15– 21 2023

4 Muskingum River Watersheds

4a Tuscarawas River Watershed

Flows: Tuscarawas, Stark, Wayne, Carroll, and Harrison Counties

Tuscarawas River drains an area of 2443 sq miles of Tuscarawas County before joining the Muskingum River. Flow

above Barberton (experiencing equipment malfunction) (flood stage 13 ft);
at Massillon, normal flow is around 400 cfs and 9 ft deep, (flood stage 18 ft);
below Dover Dam near Dover, normal flow is 3.5 ft deep (flood stage 7.5 ft);
at New Philadelphia, flow is not rated, we see this station measuring up around 2300 cfs and 2.6 ft deep (flood stage 7.5 ft);
at Newcomerstown, when the flow is normal, we see it measuring up to 3800 cfs and 3.5 ft deep, (Flood stage 11ft). (04-04-23)

Chippewa Creek drains an area of 50.4 sq miles in Wayne County. The flow at Miller Rd at Sterling is unrated, often seen around 80 cfs and 2.5 ft deep. (04-04-23)

Sugar Creek drains an area of 311 sq miles in Tuscarawas County. The flow

near Beach City, flow is unrated, often around 2 ft deep;
at Strasburg, normal flow is around 300 cfs and 2.8 ft deep (updated 04/04/23)

Nimishillen Creek drains an area of 172 sq miles in Stark County. Normal flow at North Industry is around 200 cfs and 4.3 ft deep (flood stage 10 ft) (updated 04/04/23)

Middle Branch Nimishillen Creek drains 43 sq miles in Stark County. Normal flow at Canton is around 40 cfs and 1.8 ft deep. (flood stage 6ft) (updated 04/04/23)

East Branch Nimishillen Creek drains an area of 15 sq miles in Stark County. The flow at Louisville is unrated, often around 4 ft deep (flood stage 11 ft)(updated 04/04/23)

West Branch Nimishillen Creek drains an area of 15.8 sq miles in Stark County. The flow at North Canton is unrated, commonly seed around 3 ft deep (flood stage 9 ft) (updated 04/04/23)

Sandy Creek drains an area of 253 sq miles in Stark County. Normal flow at Waynesburg is around 300 cfs and 2.3 ft deep (flood stage 8 ft) (updated 04-04-23)

Willow Run drains an area of 7.8 sq miles in Carroll County. The flow near Dellroy is unrated, often 2 ft deep, temp and conductance are measured here (updated 04/04/23)

McGuire Creek drains an area of 48.3 sq miles in Carroll County. The flow

above Leesville Lake is unrated, we see it around 1.8 ft deep, temp and conductance are measured here;
near Leesville, normal flow is around 60 cfs and 3.5 ft deep; (updated 04-04-23)

North Fork McGuire Creek drains an area of 11.3 sq miles of Carroll County. The flow at Carrollton is unrated, we see it at 3.7 ft deep, temp and conductance are measured here. (updated 04/04/23)

Indian Fork drains an area of 70 sq miles in Tuscarawas County. The flow

- at Dellroy is unrated, often 5.5 ft deep, temp and conductance are measured here;

- below Atwood Dam near New Cumberland flow is likewise unrated, often around 90 cfs and 7 ft deep (updated 04/04/23)

Bear Hole Run drains an area of 1.43 sq miles in Carroll County. The flow near Carrollton is unrated, measuring close to 2 ft deep when conditions in the surrounding area are average, temp and conductance are measured here (updated 04/04/23)

Stillwater Creek drains an area of 367 sq miles in Tuscarawas and Harrison Counties.

above Piedmont Lake is unrated, we see it 2 ft deep and temp and conductance are measured here;
at Piedmont flow is unrated, commonly around 200 cfs and 3.2 ft deep;
at Tippecanoe is flow is unrated, around 450 cfs and up 6.5 ft deep;
at Uhrichsville, flow is unrated, usually around 6.5 ft deep (flood stage 10 ft). (updated 04/04/23)

Little Stillwater Creek drains an area of 71.1 sq miles of Harrison County. Flow below Tappan Dam at Tappan is unrated, a minor 10 to 15 cfs and 4 ft deep. (updated 04/04/23)

Beaverdam Run drains an area of 3.5 sq miles in Harrison County. The flow above Tappan Lake is unrated, under a foot deep, temp and conductance are measured here (updated 04/04/23)

Standingstone Fork drains an area of 13.5 sq miles of Harrison County. The flow above Tappan Lake is unrated, commonly 4 ft deep, temp and conductance are measured here (updated 04/04/23)

Boggs Fork drains an area of 36.6 sq miles in Harrison County. The flow at Piedmont is unrated, around 80 cfs and 4 ft deep. (updated 04/04/23)

Brushy Fork drains an area of 70 sq miles Harrison County.

above Clendening Lake flow is unrated, 3.2 ft deep, temp and conductance are measured here;
near Tippecanoe flow is unrated, around 120 cfs and 4.4 ft deep. (updated 04/04/23)

Clear Fork drains an area of 23.3 square miles in Harrison County. Flow above Tappan Lake is unrated, common to see it 2ft deep, temp and conductance are measured here. (updated 04/04/23)

Public Drinking Water Advisories (2) confirmed ongoing as of May 26, 2023

Glade Run Mennonite Church – Kensington – Carroll County – non-transient system serving less than 250 people from a groundwater source

Sensitive Population Advisory – Exceeds standards for inorganic chemical - fluoride

MCL = 4 mg/l and Secondary MCL = 2 mg/l

Legacy Christian School – Sugar Creek (Tuscarawas County) non-transient, non-community system serving less than 250 people from a groundwater source

Do not consume advisory – sensitive populations – Lead exceeds standard

Lead poses the greatest risk to young children and pregnant women. The CDC recommends children and pregnant women use bottled water or water from a filtration system that has been certified by an independent testing organization to reduce or eliminate lead for cooking, drinking and baby formula preparation.

Spills (4)

May 21 - unknown amounts of petroleum oil reported spilled in Canton - Stark - Nimishillen Creek affected *
May 19 - unknown amounts of bentonite and unknown material reported spilled in Harrison Township – Carroll
May 16 - unknown amounts of crude oil and unknown petroleum reported spilled in Orange Town – Carroll
May 17 - unknown amounts of waste water reported spilled in Monroe Township - Harrison - Unnamed waterbody affected *

4b Wills Creek Watershed

Flows: parts of Licking, Guernsey, Tuscarawas Counties

Wills Creek drains an area of 406 sq miles in Guernsey County, making a northward run and looping back down into the Muskingum system. The flow

at Derwent is not rated, 8 ft deep is common;
at Cambridge normal flow is around 750 cfs and 5.5 ft deep (flood stage 15ft);
below Wills Creek Dam at Wills Creek, 6 ft deep (04-12-23).

Seneca Fork drains an area of 118 sq miles in Guernsey County before joining Wills Creek. The flow below Senecaville Dam near Senecaville is not rated, is usually around 350 cfs and 6 ft deep. (04-12-23)

South Fork drains an area of 28.3 sq miles in Noble County before entering Senecaville Lake. The flow above Senecaville Lake is unrated, 6.3 ft deep, temp and conductance are detected here (updated 04-12-23)

Beaver Creek drains an area of17 sq miles in Guernsey County before joining up with Wills Creek. The flow above Senecaville Lake is not rated, 4.5 ft deep, temp and conductance taken here (04-12-23)

Leatherwood Creek drains an area of 69.5 sq miles in Guernsey County. The flow near Kipling is not rated, is often flowing around the 65 cfs mark and 3 ft deep. (updated 04-12-23)

Low Flow (0)

Public Drinking Water Advisories (1) Confirmed ongoing as of May 26, 2023:

Byesville Water System – Byesville – Guernsey County – community system serving 3, 301 to 10,000 persons from a groundwater source

Sensitive Population Advisory – Exceeds standards for Disinfection Byproducts – Trihalomethane - By-product of drinking water chlorination

You do not need to use an alternative (e.g. bottled) water supply. However, if you have specific health concerns, consult your doctor.

Locational running annual average of 0.08538 mg/L during the July 1 to September 30, 2019 time period

Spills (1)

May 18 - unknown amounts of vegetable oil reported spilled in Westland Township - Guernsey

4c Little Muskingum River Watershed

Flows: parts of Washington, Noble, Monroe, Guernsey

Little Muskingum River drains an area of 210 sq miles of Washington County; normal flow at Bloomfield is 425 cfs and 4.5 ft deep. (04-12-23)

Duck Creek drains an area of 260 sq miles in Washington County. The flow below Whipple is unrated, around 400 cfs and 3 ft deep (flood stage 12 ft) (updated 04-12-23)

East Fork Duck Creek drains an area of 99.5 sq miles in Noble County. Flow near Harrietsville not rated, around 150 cfs and 4.5 ft deep, (flood stage 17 ft) (updated 04-12-23)

West Fork Duck Creek drains an area of 84.5 sq miles in Washington County. The flow at Macksburg is not rated, is often around 120 cfs and 7 ft deep (flood stage 13 ft) (updated 04-12-23)

Public Drinking Water Advisories (1) confirmed ongoing as of May 26, 2023

Woodsfield Village Public Water Supply – Woodsfield – Monroe County – community system serving between 3,301 to 10,000 persons surface water source

Sensitive Population Advisory – Exceeds standards for Disinfection Byproducts – Trihalomethane - By-product of drinking water chlorination

You do not need to use an alternative (e.g. bottled) water supply. However, if you have specific health concerns, consult your doctor.

Locational running annual average of 0.089 mg/L at DS201 for the April 1 to June 30, 2022 time period. MCL = 0.080 mg/l

Spills (0)

No hazardous spills for the search period of May 15– 21 2023

4d Mohican River Watershed

Flows: catching parts of Richland and Ashland Counties

Clear Fork Mohican River drains an area of 115 sq miles in Richland County. The streamflow gage

at Bellville is unrated, 2.5 ft deep is about average here, (flood stage 12ft);
below Pleasant Hill Dam near Perrysville is unrated, 2 ft deep; (04-12-23)

Black Fork Mohican River drains an area of 217 sq miles in Richland County. The flow

at Shelby is unrated, around 15 cfs and 6 ft deep (flood stage 15.5 ft);
below Charles Mill Dam near Mifflin is around 2.5 ft deep (flood stage 1000 ft);
at Loudonville flow is often around 6 ft deep (flood stage 10 ft) (04-12-23)

Lake Fork drains an area of 271 sq miles in Ashland County. The flow below Mohicanville Dam at Mohicanville is commonly around 7.5 ft deep (flood stage 944 ft) (updated 04-12-23)

Rocky Fork drains an area of 66.7 sq miles of Richland County. The flow at Lucas is 4 ft deep. (updated 04-12-23)

Public Drinking Water Advisories (0)

Spills (0)

No hazardous spills for the search period of May 15– 21 2023

4e Walhonding River Watershed

Flows: parts of Knox, Morrow, Ashland, Richland, Coshocton, Holmes Counties

Walhonding River drains an area of 2191 sq miles in Coshocton County. The flow

below Mohawk Dam at Nellie can be around 8.6 ft deep;
below Randle is unrated, we have seen it at over 4.5 ft deep in normal conditions (03/02/23)

Kokosing River drains an area of 202 sq miles in Knox County. At Mount Vernon station in Knox County, normal flow is around 350 cfs and 3.8ft deep (flood stage 14ft) (03/02/23)

Killbuck Creek drains an area of 464 sq miles in Holmes County. When the flow at Killbuck in Holmes County is above normal, we see 870 cfs and 11.5 ft deep (Flood Stage 15ft). (04-12-23)

Public Drinking Water Advisories (3) confirmed ongoing as of May 26, 2023

Lake Wapusun North Well Public Water System – Shreve (Wayne) Boil Water Advisory issued for the detected presence of e.coli in lab samples – non-community system serving 251 to 1000 people from a groundwater source

Holmes Cheese Co Public Water System – Millersburg (Holmes) - non-transient system serving less than 250 persons from a groundwater source

Do not Drink advisory – contaminant manganese - Levels > 1 mg/L (Do Not Drink)

Naturally present in the environment; additive in treatment of drinking water contaminants

Global Compression Services Public Water System (Knox) Monitoring and Reporting Advisory issued to for harmful algal bloom toxin - alert is issued by Ohio EPA- the public water system has provided insufficient monitoring or reporting information.

Sensitive Population Advisory issued to Global Compression Services Public Water System for the inorganic chemical arsenic in excess of maximum contaminant level - groundwater supplied - non-transient - non-community system serving under 250 people - you do not need to use bottled water - if you have specific health concerns consult your doctor

Spills (0)

No hazardous spills for the search period of May 15– 21 2023

4f Licking River Watershed

Flows: parts of Licking County

Licking River drains an area of 537 sq miles of Licking County before joining the Muskingum River. The flow monitor

near Newark is normal, 71.40% above mean flow at 701 cfs and 4.27 ft deep (flood Stage 14ft)
below Dillon Dam near Dillon Falls the flow is unrated, 5.82 ft deep. (02/02/23)

North Fork Licking River drains an area of 241 sq miles of Licking County;

at Utica in Licking County is normal, 67.28% above mean at 135 cfs, 7.95 ft deep;
at Newark 4.06 ft deep;
at Ohio Street in Newark the flow is not rated, 4.06 feet deep. (02/02/23)

South Fork Licking River drains an area of 133 sq miles of Licking County. The station

at Kirkersville is unrated, 36.50% above historic mean at 25.8 cfs and 4.81 ft deep;
near Buckeye Lake flow is unrated, 872.23 ft deep (flood stage 880 ft)
near Hebron flow is normal, 67.91% above historic mean at 159 cfs and, 3.27 ft deep;
at Heath the flow is unrated, 76.63% above mean, 185 cfs and 5.65 ft deep. (02/02/23)

Raccoon Creek drains an area of 78.2 sq miles in Licking County. The flow

near Granville is unrated, registering 91.10% above mean at 90.2 cfs and 3.59 ft deep (flood stage 13 ft);
below Wilson St, Newark, unrated, 126.25% above mean at 889 cfs and 6.56 ft deep (flood stage 16 ft) (updated 02/02/23)

Public Drinking Water Advisories (1) confirmed ongoing as of May 26, 2023

Columbia Gas of Ohio – Mount Vernon PWS – Mount Vernon – Knox County non-transient system serving <250 persons from groundwater source

Sensitive Population Advisory – Exceeds standards for Disinfection Byproducts

You do not need to use an alternative (e.g. bottled) water supply. However, if you have specific health concerns, consult your doctor.

Spills (0)

No hazardous spills for the search period of May 15– 21 2023

4g Muskingum River Watershed

Flows: Morgan, Washington, Noble, Muskingum, Coshocton Counties

Muskingum River drains an area of 7947 sq miles.

Near Coshocton in Coshocton County the Upper Muskingum is flowing normal around the 8700 cfs mark and 10.3 ft deep (flood stage 15ft);
at Dresden in Muskingum County, normal flow is 11300 cfs and 11.9 ft deep (flood Stage 20 ft);
at Zanesville, flow is unrated, we have seen it at 12.30 ft deep when the rest of the system is rated normal (flood stage 25 ft);
at McConnelsville in Morgan County, when the river is flowing at a normal level it is 14300 cfs and 6 ft deep (flood stage 11ft).
at Beverly, unrated, we see it get to 15500 cfs and 20 ft deep (03/02/23)

Mill Creek drains an area of 27.2 sq miles in Coshocton County. Normal flow near Coshocton is around 35 cfs and 2 ft deep. (updated 04-12-23)

Wakatomika Creek drains an area of 140 sq miles in Muskingum County. Normal flow near Frazeyburg is around 240 cfs and 5.3 ft deep. (updated 04-12-23)

Salt Creek drains 75.7 sq miles of Muskingum County. Normal flow at Chandlersville is around 100 cfs and 4 ft deep. (updated 04-12-23)

Public Drinking Water Advisories (2) Confirmed as of May 26, 2023

Woodland Hills Estates – McConnelsville – Morgan County Boil Water Advisory issued by the Ohio EPA due to microbiological contamination with e.coli. This is a community water system serving less than 250 people from a groundwater source. Boil the water before using or use bottled water. E. coli are bacteria whose presence indicates that the water may be contaminated with human or animal wastes. Microbes in these wastes can cause diarrhea, cramps, nausea, headaches, or other symptoms. They may pose a special health risk for infants, young children, and people with severely compromised immune systems.

Maysville Regional Water – Zanesville – Muskingum County – community system serving between 3301 to 10,000 persons from a surface water source

Sensitive Population Advisory – Exceeds standards for Disinfection Byproducts – Trihalomethane - By-product of drinking water chlorination

You do not need to use an alternative (e.g. bottled) water supply. However, if you have specific health concerns, consult your doctor.

Locational running annual average of 0.100 mg/L at DS201 and 0.120 mg/L at DS202 for the October 1 to December 31, 2022 time period. MCL = .08 mg/L

Spills (0)

No hazardous spills for the search period of May 15– 21 2023

5 Scioto River Watersheds

5a Upper Scioto Watershed

Flows: trickling over parts of Madison, Union, Franklin, Pickaway, Champaign, Logan, Marion, Delaware, Morrow, Crawford, Licking, Knox, Fairfield Counties

Upper Scioto River drains an area of 980 sq miles in Marion and Delaware Counties. The flow

at La Rue in Marion County normal flow is around 60 cfs, and 3.5 ft deep, (flood Stage 12ft);
at Prospect in Delaware County normal flow is around 400 cfs and 3 ft deep (flood Stage 12ft), temp and conductance are measured here;
below O’Shaughnessy Dam near Dublin normal flow is around 700 cfs and 5 ft deep;
at 5^th Ave Columbus in Franklin County flow is unrated, we have seen it around 950 cfs and 8.5 ft deep when the upstream flows are normal;
at Columbus is normal flow is around 1300 cfs and 7.5 ft deep, (flood stage 24 ft);
near Commercial Point in Pickaway County the flow is unrated, commonly around 2500 cfs and 11 ft deep. (04-12-23)

Mill Creek drains an area of 178 sq miles in Delaware County. The flow at Bellepoint has been monitored for 77 years equipment malfunction (02/02/23)

Whetsone Creek drains an area of 37.9 sq miles in Morrow County. The flow at Mt. Gilead is unrated, it is usually around 30 cfs and 2.5 ft deep when other streams in the area are normal (flood stage 9 ft) (update 04-12-23)

Big Walnut Creek drains an area of in Delaware County. The flow

at Sunbury normal flow is around 80 cfs and 5 ft deep;
at Central College is normal at 60.35% above mean at 118 cfs, and 3.64 ft deep, (flood stage 11.7 ft);
at Rees flow is normal, 87.48% above mean at 540 cfs and 3.02 ft deep (updated 02/02/23)

Little Darby Creek drains an area of 162 sq miles in Madison County. The flow at West Jefferson is not rated, we see it around 240 cfs and 6.5 ft deep. (04-12-23)

Big Darby Creek drains an area of 534 sq miles in Pickaway County. The streamflow gauge at Darbyville in normal flow conditions is around 650 cfs and 3.5 ft deep. (04-12-23)

Hellbranch Run drains an area of 35.8 sq miles in Franklin County. The normal flow values at Harrisburg are around 30 cfs and 5 ft deep (04-12-23)

Alum Creek drains an area of 189 sq miles in Delaware County. The flow

near Kilbourne flow is unrated, around 55 cfs and 3 ft deep are common;
at Africa normal flow is less than 300 cfs and 2.5 feet deep; temp is measured here;
at Columbus flow is not rated, gets to 3.5 ft deep when upstream is flowing normal; (04-12-23)

Olentangy River drains an area of 157 sq miles in Marion County, 393 sq miles by the time it reaches Delaware.

Normal flow at Claridon in Marion County is around 2.5 ft deep;
near Delaware in Delaware County normal flow is around 150 cfs and 2.3 ft deep (flood Stage 9ft);
near Worthington normal flow is around 250 cfs and 2.5 ft deep;
at JH Herrick Dr at Columbus flow is unrated, commonly around 260 cfs and 711.37 ft deep. (04-12-23)

Low Flows (1)

May 25 10:30 am EDT Alum Creek is flowing much below normal near Africa - stream depth is down to 1.17 ft and flow volume is 6.06 cubic feet per second

Public Drinking Water Advisories (8) confirmed ongoing as of May 26, 2023

Galion City (Crawford, Morrow, Richland) community system serving 10,001 to 50,000 persons from surface water source

Sensitive population advisory issued for exceeding maximum contaminant level trihalomethane; MCL = .08mg/L Locational running annual average of 0.083 mg/L at DS202 during the April 1 to June 30, 2023 time period.

Warning statement for excess trihalomethane: Some people who drink water containing trihalomethanes in excess of the MCL over many years may experience problems with their liver, kidneys, or central nervous systems, and may have an increased risk of getting cancer.

Greentree Mobile Home Park – Galloway (Madison County) community system serving less than 250 persons from groundwater source

Boil Water Advisory issued due to system depressurization. Boil all water used for drinking, cooking and brushing teeth, a rolling boil for over one minute.

Oak Hills Mobile Home Park – Grove City (Franklin County) – community system serving between 251 and 1000 persons from groundwater source

Sensitive Population Advisory – Exceeds standards for inorganic chemical – arsenic

Source - erosion of natural deposits; Runoff from orchards; Runoff from glass and electronics production wastes - MCL = 10 ug/l

You do not need to use an alternative (e.g. bottled) water supply. However, if you have specific health concerns, consult your doctor.

The running annual average arsenic concentration for arsenic is 0.01 mg/L (11 ug/L) for the fourth quarter of 2022.

McDonalds Restaurant – London – Madison County – community system serving between 251 and 1000 persons from groundwater

Sensitive Population Advisory – Exceeds standards for inorganic chemical – arsenic

Source - erosion of natural deposits; Runoff from orchards; Runoff from glass and electronics production wastes - MCL = 10 ug/l

You do not need to use an alternative (e.g. bottled) water supply. However, if you have specific health concerns, consult your doctor.

99.5 ug/L 90th %

Nex Transport – Building 1 S – East Liberty – Logan County – non-transient system serving less than 250 people from groundwater source

Do Not Drink - Sensitive Populations – Lead

Pregnant and nursing women and young children should not use the water

Lead 90th percentile = 33.6 ug/L (individual lead results: 0.7, 2.5, 7.7, <0.6, 59.4 ug/L).

Trillium Farms – Croton – Licking County - non-transient system serving less than 250 people from groundwater source

Sensitive Population Advisory – Exceeds standards for inorganic chemical - fluoride

Whispering Pines – Pataskala – Pickaway County – community system serving less than 250 persons from groundwater source

Sensitive Population Advisory – Exceeds standards for inorganic chemical - fluoride

MCL = 4 mg/l and Secondary MCL = 2 mg/l

Mt Victory Village – Mt Victory – Hardin County – community system serving between 251 and 1000 persons from groundwater source

Sensitive Population Advisory – Exceeds standards for inorganic chemical - fluoride

MCL = 4 mg/l and Secondary MCL = 2 mg/l

Spills (3)

May 17 - unknown amounts of petroleum oil reported spilled in Delaware - Delaware - Olentangy River affected *
May 17 - 50 gallons of diesel fuel reported spilled in Columbus – Franklin
May 19 - sheen noted in Whitehall - Franklin - Mason Run Affected *

5b Paint Creek Watershed

Flows: parts of Clinton, Ross and Highland Counties

Paint Creek drains an area of 249 sq miles in Clinton and Ross Counties. The flow

at Greenfield normal flow is around 250 cfs and 2.8 ft deep;
near Bainbridge is not rated, 3.3 ft deep, temp is recorded here;
near Bourneville normal flow is around 850 cfs and 3.4 ft deep (flood stage 12 ft);
at Chillicothe normal flow is around 1000 cfs and 7 ft deep. (04-12-23)

Rattlesnake Creek drains an area of 209 sq miles in Highland County. The flow at Centerfield is commonly 3 ft deep. (updated 04-12-23)

Rocky Fork Creek drains an area of 140 sq miles in Highland County. The normal flow at Barretts Mills is 150 cfs and 2.7 ft deep. (04-12-23)

Public Drinking Water Advisories (4) confirmed ongoing as of May 15, 2023

Dollar General #20756 - Mount Sterling – Madison County – non-community system serving less than 250 persons from groundwater source

Boil Water Advisory – microbiological contamination – e.coli

Boil the water before using or use bottled water

Fayette Co – Culpepper Subdivision – Washington – Fayette County - community system serving between 251 and 1000 persons from purchased surface water

Do Not Drink - Sensitive Populations – Lead – exceeds standard

Pregnant and nursing women and young children should not use the water

Action Level = 15 ug/l system test 0.0179 mg/L

Bowersville Village PWS – Bowersville – Greene County - community system serving between 251 and 1000 persons from purchased surface water

Sensitive Population Advisory – Exceeds standards for inorganic chemical - fluoride

MCL = 4 mg/l and Secondary MCL = 2 mg/l

South Solon Village PWS – South Solon – Madison County - community system serving between 251 and 1000 persons from groundwater source

Do Not Drink - Sensitive Populations – Lead – exceeds standard

Pregnant and nursing women and young children should not use the water

Action Level = 15 ug/l

Spills (0)

No hazardous spills for the search period of May 15– 21 2023

5c Lower Scioto Watershed

Flows: Parts of Madison, Highland, Franklin, Pickaway, Ross and Pike counties

Scioto River (Lower) drains an area of 5836 sq miles from its headwaters in Marion County down to its outlet at the Ohio River.

The lower end flow at Circleville in Pickaway County is not rated, around 3000 cfs and 4 ft deep;
at Chillicothe in Ross County, flow has been monitored for 100 years, normal flow is around 4500 cfs and 5 ft deep (flood stage 16 ft);
at Higby in Ross County normal flow is around 5400 cfs and 4.5 ft deep;
at Piketon in Pike County is not rated, 6800 cfs, and 6 ft deep is pretty standard when the upstream stations are measuring normal flows(flood stage 20 ft) (04-12-23)

Deer Creek drains an area of 228 sq miles in Madison County. The flow

at Mount Sterling normal flow is around 240 cfs and 5 ft deep;
near Pancoastburg is not rated and 1.5 ft deep;
at Williamsport the flow is not rated, 4 ft deep (04-12-23)

Walnut Creek drains an area of 274 sq miles in Pickaway County. The flow at Ashville is unrated, around 250 cfs and 6 ft deep. (04-12-23)

Sunday Creek drains an area of 104 sq miles in Athens County before flowing south and west, joining the Lower Scioto. The flow

near Burr Oak is around 3ft deep;
at Glouster is around 3 ft deep (flood stage 16 ft) (updated 04-12-23)

Public Drinking Water Advisories (2) confirmed ongoing as of May 26, 2023

Cooks Creek Golf Club – Ashville – Pickaway County – non-community system serving less than 250 persons from groundwater source

Boil Water Advisory – microbiological contamination – e.coli

Boil the water before using or use bottled water

MCL = confirmed presence E. coli

Clarksburg Village PWS – Clarksburg – Ross County - community system serving between 251 and 1000 persons from groundwater source

Sensitive Population Advisory – Exceeds standards for inorganic chemical - fluoride

MCL = 4 mg/l and Secondary MCL = 2 mg/l The fluoride result for a sample collected on 1/5/2022 was 2.1 mg/L.

Spills (0)

No hazardous spills for the search period of May 15– 21 2023

5d Little Scioto – Tygarts Watershed

Tygart’s Creek drains 242 sq miles in Greenup County flowing north to the Ohio River. Normal flow near Greenup, KY is 400 cfs and 4 ft deep. (03/21/23)

Public Drinking Water Advisories (0)

Spills (0)

No hazardous spills for the search period of May 15 – 21, 2023

6 Miami River Watersheds

6a Upper Great Miami Watershed

Flows: clearing parts of Hardin, Logan, Shelby, Miami, Darke, Clark and Montgomery Counties

Great Miami River (Upper) drains an area of 1149 sq miles in Hardin, Logan, Shelby, Miami and Darke and Montgomery Counties. The flow monitoring station closest to the head of the river is at Sidney, in Shelby County.

at Sidney normal flow is 300 cfs and 2.2 ft deep (flood stage 10ft);
at Piqua flow is unrated, we see this around 650 cfs and 2 ft deep (flood stage is 14 ft);
at Troy, normal flow is around 750 cfs and 3 ft deep (flood stage 14 ft);
at Taylorsville, normal flow is around 880 cfs and, 3.2 ft deep (flood stage 22 ft) (updated 04-04-23)

Loramie Creek drains an area of 257 sq miles in Shelby County. The flow

near Newport, normal flow is above 20 cfs and 3.7 ft deep;
at Lockington in Shelby County, normal spring flow is around 50 cfs and 1 ft deep. (flood stage 35 ft) (updated 04/04/23)

Bokengehalas Creek drains an area of 40.4 sq miles of Logan County. The station at de Graff is not rated, we see this around 30 cfs and 1.5 ft deep; (updated 04/04/23)

Mad River drains a combined area of 635 sq miles in Clark, Champaign, Greene and Logan Counties. Flow

at West Liberty flow is unrated, around 30 cfs and 2.5 feet deep;
near Urbana normal flow is 200 cfs and 3.3 ft deep, (flood stage 11 ft);
at St. Paris Pike, normal flow is around 350 cfs and 6.5 ft deep;
at Springfield, normal flow is around 600 cfs and 1.5 ft deep (flood stage 8ft);
near Dayton, normal flow is around 750 cfs and, 3.5 ft deep (flood stage 25ft) (updated 04-04-23)

Greenville Creek drains an area of 193 sq miles in Warren and Darke Counties. Normal flow near Bradford is 90 cfs and 1.8 ft deep. (updated 04/04//23)

Stillwater River drains an area of 503 sq miles in Miami County. The flow

at Pleasant Hill, normal flow is around 150 cfs and 1.7 ft deep, temperature is monitored at this station;
at Englewood, normal flow is around 300 cfs and 3 ft deep (flood stage 58 ft) (04/04/23)

Public Drinking Water Advisories (3) confirmed ongoing as of May 26, 2023

Liberty Baptist Temple PWS – Springfield – Clark County - non-community system serving less than 250 persons from groundwater source

Boil Water Advisory – microbiological contamination – e.coli

Boil the water before using or use bottled water

MCL = confirmed presence E. coli

Voyager Village Mobile Home Park – Dayton – Montgomery County - community system serving less than 250 persons from groundwater source

Sensitive Population Advisory – Exceeds standards for inorganic chemical - fluoride

MCL = 4 mg/l and Secondary MCL = 2 mg/l

Village of South Vienna – South Vienna – Clark County - community system serving between 251 and 1000 persons from groundwater source

Sensitive Population Advisory – Exceeds standards for inorganic chemical – arsenic

Source - erosion of natural deposits; Runoff from orchards; Runoff from glass and electronics production wastes - MCL = 10 ug/l

You do not need to use an alternative (e.g. bottled) water supply. However, if you have specific health concerns, consult your doctor.

Spills (0)

No hazardous spills for the search period of May 15– 21 2023

6b Lower Great Miami Watersheds

Flows: take off from Hamilton, Montgomery, Preble and Butler Counties

Great Miami River drains an area of 3838 sq miles in Ohio, with the lower portion taking runoff from 1400 sq miles in Hamilton and Butler Counties.

At Dayton normal flow is around 2000 cfs and 25 ft deep (flood stage 41ft);
at Miamisburg, Montgomery County normal flow is around 2200 cfs and 5 ft deep (flood stage 16ft);
at Franklin the flow is unrated, we will see it at around 2350 cfs and 2 ft deep when upstream stations are flowing normally (flood stage 14 ft);
at Middletown flow is unrated, 2700 cfs and 3 ft deep is pretty standard (flood stage 12 ft) temp is recorded here;
at Hamilton normal flow is up to 3500 cfs and around 64 feet deep (flood stage 75ft);
at Miamitown the flow is unrated, around 3 ft deep (flood stage 16ft) (updated 04-12-23)

Wolf Creek drains an area of 68.7 sq miles in Montgomery County into the Great Miami River. Normal flow at Dayton is around 35 cfs and 1.4 ft deep (updated 04-18-23)

Holes Creek drains an area of 18.7 sq miles in Montgomery County into the Great Miami River. The flow near Kettering is unrated, around 5 cfs and 2.5 ft deep. (updated 04-18-23)

Twin Creek drains an area of 275 sq miles of Montgomery County into the Great Miami River. Normal flow near Germantown is around 120 cfs 1.8 ft deep (flood stage 62 ft). (updated 04-18-23)

Sevenmile Creek drains 69 sq miles of Preble County into the Great Miami River. Normal flow at Camden is 40 cfs and 3 ft deep. (updated 04-18-23)

Public Drinking Water Advisories (0)

Spills (3)

May 19 - unknown amounts of hydraulic oil reported spilled in Miami Township – Montgomery
May 16 - unknown amounts of white material reported spilled in Lemon Township – Butler
May 16 - unknown amounts of petroleum reported spilled in Oxford - Butler - Unnamed waterbody affected *

6c Little Miami Watershed

Flows: sending water from Clark, Clermont, Warren and Greene Counties

Little Miami River drains an area of 1203 sq miles in Clark and Greene Counties. The flow

near Oldtown a normal flow is 100 cfs and, 2 ft deep, temp is also monitored here;
near Spring Valley has unrated flows, we see this around 3.5 ft deep when the rest of the streamflow in the area are normal (flood stage 11ft);
at Milford, normal flow looks like 1300 cfs, and 6.5 ft deep (flood stage 17ft) (updated 04-18-23)

East Fork Little Miami River drains an area of 476 sq miles in Clermont County. Flow

at Williamsburg is unrated, it can be 110 cfs and 1.5 ft deep;
below Harsha Dam near Bantam in Clermont County normal flow is around 16 ft deep, water temperature is monitored here;
at Perintown a normal flow would be around 260 cfs and 3 ft deep (flood stage 19ft) (updated 04-12-23)

Massies Creek drains an area of 63.2 sq miles in Greene County into the Little Miami River. When the flow monitoring station at Wilberforce is normal, we see values of 60 cfs and 3 ft deep. (updated 03/02/23)

Caesar Creek drains an area of 239 sq miles in Warren County into the Little Miami River. The flow near Wellman is unrated, 6.8 ft deep, temperature is monitored here (updated 04-12-23)

O’Bannon Creek drains an area of 54 sq miles in Clermont County. The flow at Loveland is unrated, we see it around 20 cfs and 1.3 ft deep when conditions upstream are normal (updated 04-12-23)

Low Flows (1)

May 25 10:30 am EDT Little Miami River is flowing much below normal at Milford - flow depth is 5.33 ft at 270 cubic feet per second

Public Drinking Water Advisories (0)

Spills (4)

May 21 - unknown amounts of diesel fuel reported spilled in Liberty Township – Clinton
May 20 - unknown amounts of asbestos reported spilled in Cincinnati – Hamilton
May 19 - 50 gallons of transformer oil reported spilled in Cincinnati – Hamilton
May 17 - 50 gallons of diesel fuel reported spilled in Cincinnati - Hamilton - 50 gallons recovered

Report Key

With the Flow Ohio tracks trends in your watershed, posting updates from USGS WaterWatch Current Streamflow and Ohio EPA Division of Drinking and Ground Waters, Ohio Beachguard (seasonally).

Flows:

With The Flow describes Ohio’s rivers and tributaries from headwaters to outlet. Locate your “home body” (the river or stream nearest you) to see where the flow originates, how high it has to be for minor flooding to occur. Log in to USGS Waterwatch current streamflow for real time measurements at the monitoring station nearest you and sign up there for high flow alerts.

Flow volume can change rapidly during snowmelt and rain events. Streamflow data is subject to review as sensors at the monitoring stations do malfunction from time to time. Refer to USGS Provisional Date Statement for more information.

Public Drinking Water Advisories

The Safe Drinking Water Act (SDWA) is federal law that safeguards the public drinking water supply. SDWA requires drinking water facilities (DWF) in every state follow national quality standards, monitor, record and report on water quality with quarterly inspections. EPA provides public access to the inspection reports, violations and enforcement actions on all registered DWFs in the USA. Annual water quality reports are required from every DWF, available from the facility, describing the treatment process and source water.

DWFs are categorized as follows:

- community system serves the same people year round

- Non-transient, Non-Community – supplies water to at least 25 of the same people at least six months of the year

Transient, Non-Community – supplies water to intermittent users, temporarily at the location eg. Gas stations, campgrounds

Note from Ohio EPA: “Boil advisories that are on record with Ohio EPA often are related to exceedances of E.coli maximum contaminant levels (MCL) at public water systems, or other major events. Staff in Ohio EPA’s district offices update (public drinking water) advisories at least monthly. Many of the advisories are based on sampling results that occur monthly, quarterly, semi-annually, or less frequently, depending on the requirements of state and federal drinking water regulations.

All advisories, including those involving more immediate health risks such as boil advisories, are required to be communicated directly to consumers by the individual public water systems.

When a boil advisory is not required by rule, a public water system will issue a precautionary boil advisory and the public water system would not be required to submit it to Ohio EPA. Ohio EPA does not have a record of all (or even most) boil advisories for Ohio public water systems.” (Dina Pierce, spokesperson for Ohio EPA)

Hazardous Spills

Spills, fish kills, rainbow sheen and releases of contaminants in the state of Ohio are reported here by watershed, as per the data source, the Ohio Environmental Protection Agency, Office of Environmental Response. Users of this data should be aware that inconsistencies and inaccuracies may exist if these data are compared to data from other time periods due to changes in methods of data collection and mapping.

This report includes spills reported to the Ohio EPA as follows:

40 gallons or more of petroleum product
toxic chemical materials, corrosives spills of any amount
all reports impacting water bodies

Spills marked with asterisk are followed up with Ohio EPA authorities for additional information on the clean-up and recovery, including notices of violation and charges under State environmental statutes, federal charges under the Clean Water Act. See Ohio CrimeBox for more information on criminal prosecutions under the CWA.

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