 July 31, 2024 updated 405 pm EDT
Ohio HAB Tracker
from NCCOS satellite monitoring and Ohio BeachGuard
Maumee Bay State Park algal toxin tests below EPA threshhold
Maumee Bay State Park microcystins test July 18 comes back below the EPA guideline for recreational water (8 ug/L). The sample collected July 18 for Maumee Bay State Park microcystins 4.7 ug/L. The algal toxin advisory remains in effect until further notice.
The latest image of Lake Erie West basin captured July 30 at wind speed 16.1 mph is mostly cloud obscured. The west shoreline is partially visible, the HAB from Maumee Bay visible up past North Maumee Bay and north of Monroe along the Michigan shore. The HAB maintains position and density with concentration ranging from 600 thousand to 1 million cells per 100 ml, the hot spot is North Maumee Bay. A prior clear image dated July 28 shows Lake Erie HAB pressing in toward the Maumee River outlet at Toledo at a concentration 600 to 700 thousand cells. The hot spot that day up to 1.5 million cells located where the HAB originated along the shoreline of North Maumee Bay.
From the July 28 image, Sandusky Bay HAB appears west and east of OH-269.
Lake Erie West Basin HAB Monitoring Program satellite images supplied by National Center for Coastal Ocean Science (NCCOS)
The following observations are based on the image from July 28 unless otherwise noted:
- North Maumee Bay widespread HAB 1 to 1.5 million cells per 100 ml
- Toledo - Maumee Bay widespread HAB pressing toward the mouth of Maumee River 600 to 700 thousand cells per 100 ml
- Toledo - Maumee Bay State Park widespread HAB in a band along shore two to three miles wide 600 thousand cells per 100 ml * see below for algal toxin advisory details
- Mallard Club Marsh Wilderness Area to Cedar Point cloud obscured - July 25 image showed widespread HAB from shore extending 1.5 nm miles into open water at 500 thousand cells per 100 ml
- Cedar Point National Wildlife Refuge widespread HAB a band 2 to 3 nm wide wraps from Maumee Bay State Park side around the point to the east side, 600 thousand cells per 100 ml
- Reno Beach band of HAB two to 3 miles wide running along shore 600 thousand cells per 100 ml
- Metzger Marsh Wildlife Area band of HAB two to three miles wide running along shore 600 thousand cells per 100 ml
- Magee Marsh Wildlife Area band of HAB two to three miles wide running along shore 600 thousand cells per 100 ml
- Toussaint River outlet no HAB observed
- Camp Perry cloud obscured - July 25 image showed no HABs, July 25 image showed localized HABs along shore 300 thousand cells per 100 ml
- Port Clinton cloud obscured - July 27 image showed localized HAB in Portage River 300 thousand cells per 100 ml
- Catawba Island cloud obscured, last clear image July 27 showed localized HABs in the interior harbor and marinas 200 thousand HABs per 100 ml
- Kelleys Island cloud obscured, last clear image July 27 showed no HAB activity - July 20 we saw widespread HAB extending out of Sandusky Bay past the east shore of Kelleys Island 200 thousand cells per 100 ml
- South Bass Island cloud obscured, July 20 image showed no HAB activity
- Middle Bass Island cloud obscured, July 20 image showed no HAB activity
Sandusky Bay:
- Muddy Creek Bay - no HAB activity
- Pickerel Point to Bayview/Route 269 - Widespread HAB Aphanizomenon 700 thousand cells per 100 ml
- Bay View/Route 269 toward Cedar Point - widespread HAB Aphanizomenon 700 thousand cells per 100 ml
- Cedar Point - cloud obscured - last clear image July 20 showed widespread HAB extending in a band from Cedar Point past the east shore of Kelleys Island 5 to 7 miles wide, the band of HAB running the lake side shore of Cedar Point approximately two miles wide at 200 to 300 thousand cells per 100 ml up to Huron
Lake Erie east of Sandusky Bay cloud obscured, clear image July 27 showed a band of HAB two miles wide at 200 to 300 thousand cells per 100 ml up to Huron
Composited Cyanobacteria Index as reported by National Centers for Coastal Ocean Science, a visual scale based on true color imagery from the Copernicus- Sentinel 3a satellite of the EUMETSAT Note: Winds above 4.0 mph may begin mixing the bloom and clouds may obscure it, leading to an underestimate of the area. Moderate and low concentrations may not be obvious to the eye.
Thirty-three beach advisories are listed Wednesday afternoon, up from thirty this morning. Maumee Bay State Park remains under advisory for high algal toxin. Twenty-one Lake Erie beaches are listed for high bacteria, along with five interior water bodies including Acton, Crystal, Rex and Luna Lakes and Little Miami River's Isaak Walton League in Clermont County. Four permanent algal toxin advisories remain on this list for Grand Lake.
Ohio Department of Health posts advisories based on updated lab test results with e.coli levels above 235 ug/L, or based on predictive modeling. Beach advisories based on predictive modeling may display e.coli test results well below the threshold 235 ug/L.
The following list are the beaches with active Recreational Public Health Advisories, test results are updated as they come in, check back for the latest results.
Algal Toxin AdvisoriesUS EPA safe limit for microcystins in recreational water 8 ug/L; OEPA safe limit for drinking water sources .3 ug/L
- Lake Erie - Maumee Bay State Park (Erie) advisory posted July 19 415 pm for algal toxin found 40 ug/L in water sample collected July 11. A subsequent sample taken July 18 tested 4.7 ug/L.
- Grand Lake - St Marys Main East Beach - Recreational Public Health Advisory issued 315 pm June 5 for algal bloom toxin - July 23 microcystins 19.5 ug/L up from 12.4 ug/L on July 16
- Grand Lake - St Marys - Windy Point - Recreational Public Health Advisory - Algal bloom-toxin issued May 23, 2024 July 23 microcystins 21.1 ug/L up from 20 ug/L July 16
- Grand Lake - Main West Beach - Recreational Public Health Advisory - Algal bloom-toxin issued May 23, 2024 July 23 microcystins 12.9 ug/L up from 12.1 ug/L July 16
- Grand Lake - St. Mary's Camp - Recreational Public Health Advisory - Algal bloom-toxin issued May 23, 2024, July 23 microcystins 15.9 ug/L up from 9.6 ug/L July 16
Bacteria Contamination Advisory High Bacteria Level confirmed by lab testing
Lake Erie Beaches
- Showse Park - Erie County - advisory issued 841 am July 30, 2024 for e.coli 1119.9 cfu per 100 ml measured July 30
- Lakeview Beach - Lorain County - advisory issued 137 pm July 31, 2024 for e.coli 866.4 cfu per 100 ml measured July 30
- Edgecliff Beach - Cuyahoga County - advisory issued 918 am July 30, 2024 for e.coli 1302 cfu per 100 ml measured July 30
- Lakewood Beach Park - Lorain County - advisory issued 144 pm am July 31, 2024 for e.coli 2400 cfu per 100 ml measured July 30
- Maumee Bay State Park (inland) - Lucas County - advisory issued 228 pm am July 30, 2024 for e.coli 410.6 cfu per 100 ml measured July 29
li>Bay View West - Erie County - advisory issued 915 am July 26, 2024 for e.coli 2419.6 cfu per 100 ml measured July 30
- Bay View East - Erie County - advisory issued 915 am July 26, 2024 for e.coli 396.8 cfu per 100 ml measured July 30
- Lagoons Beach - Erie County - advisory issued 840 am July 30, 2024 for e.coli 1413.6 cfu per 100 ml measured July 30
- Lakeshore Park - Ashtabula County - advisory issued 306 pm July 9, 2024 for e.coli 1733 cfu per 100 ml measured July 29
- Euclid State Park - Cuyahoga County - advisory issued 813 am July 30, 2024 for predictive modeling e.coli 8 cfu per 100 ml measured July 28
- Community Park Beach - Lorain County - advisory issued 148 pm July 31, 2024 for e.coli 1299.7 cfu per 100 ml measured July 31
- Edgewater Beach - updates in progress
- Orchard Beach - Erie County - advisory issued 839 am July 24, 2024 for e.coli 365.4 cfu per 100 ml measured July 25
- Sherod Park Beach - Erie County - advisory issued 840 am July 25, 2024 for e.coli 344.8 cfu per 100 ml measured July 25
- Nickel Plate Beach - Erie County - advisory issued 916 am July 26, 2024 for e.coli 461.1 cfu per 100 ml measured July 26
- Nokomis Park - Erie County - advisory issued 842 am July 25, 2024 for e.coli 2419.6 cfu per 100 ml measured July 25
- Noble Beach - updates in progress
- Moss Point - updates in progress
- South Bass Island - updates in progress
- Sims Beach - updates in progress
- Conneaut Sandbar Beach - updates in progress
- Villa Angela State Park - updates in progress
Interior Ohio Beach Advisories
- Hueston Woods, Acton Lake - Preble County - advisory issued 1256 pm July 30, 2024 e.coli 517.2 cfu per 100 ml measured July 29
- Akron Rotary Camp - Rex Lake - Summit County - advisory issued 344 pm July 24, 2024 e.coli 326 cfu per 100 ml measured July 23
- Hillside Park - Luna Lake - Summit County - advisory issued 350 pm July 24, 2024 e.coli 248 cfu per 100 ml measured July 23
- Isaak Walton League - Little Miami River - Clermont County - advisory issued 228 pm July 23, 2024 for e.coli 580 cfu per 100 ml measured July 22
- Crystal Lake Club - Crystal Lake - Summit - advisory issued 348 pm July 10, 2024 e.coli 361 cfu per 100 ml measured July 16
Removed from the active advisory list this week:
- Castaway Campground - Lorain County - advisory issued 858 am July 26, 2024 for e.coli 2419.6 cfu per 100 ml measured July 25
Ohio BeachGuard is a public facing app displaying active advisories for recreational water bodies, including high bacteria advisories and toxic algae advisories. Sampling is done by County Health, water utilities or Ohio Department of Natural Resources with advisories issued and lab test results reported by the Ohio Department of Health. Ohio Environmental Protection Agency oversees standard testing of raw water sources for bacterial and cyanotoxin levels in water to be treated for drinking. OEPA and ODNR, Ohio DOH publish test results for drinking water and recreational water separately, even on the same water body. WT tracks bacterial and cyanotoxin values from both the recreational BeachGuard and Ohio Drinking Water Watch.
Toxic algae advisories indicate avoid all contact with the water. Algal toxins have been found at unsafe levels. Swimming and wading are not recommended. Keep pets away.
For more information check Ohio State resources here
or call 1-866-644-6224
Western Basin Lake Erie National Centers for Coastal Ocean Science
HABS Hazardous Algae Blooms
Get informed and stay safe around the water this summer
WaterToday collects algal bloom monitoring information from state and federal agencies including but not limited to the CDC, EPA, NOAA and state public health authorities.
HABs alerts are posted on our state maps according to the best available information reported by citizen groups, universities, state and/or federal monitoring agencies.
Before you head out to the beach, pond or stream, check with local authorities to confirm the latest HABs conditions.
Consider carrying a rapid test kit for micro-cystin, the most common of the cyanobacteria toxins.
Sources for algal bloom data:
National Centres for Coastal Ocean Science
A department of the National Oceanic and Atmospheric Administration, NCCOS provides harmful algal bloom forecasting for certain water bodies and regions including:
West Basin Lake Erie https://coastalscience.noaa.gov/science-areas/habs/hab-monitoring-system/cyanobacteria-algal-bloom-from-satellite-in-western-lake-erie-basin/
Lake Pontchartrain https://coastalscience.noaa.gov/science-areas/habs/hab-monitoring-system/cyanobacteria-algal-bloom-from-satellite-in-lake-pontchartrain-la/
The forecasting is based on true color imagery provided by OLCI sensors on Copernicus Sentinel-3a satellite of the EUMETSAT group
Environmental Protection Agency Cyanobacteria Assessment Network (CyAN)
The mission of the CyAN project is to support the environmental management and public use of U.S. lakes and estuaries by providing a useful and accessible approach to detecting and quantifying algal blooms and related water quality using satellite data records.
What is CyAN: Mobile and web-based application for cyanobacteria monitoring
How does it work? Users can enter the coordinates or name of local water bodies for monitoring information.
The CyAN project officially started October 1, 2015. It provided continental U.S. coverage using the Envisat MERIS archive from 2002-2012
Sign up here: https://www.epa.gov/water-research/cyanobacteria-assessment-network-application-cyan-app
Centers for Disease Control
Environmental Public Health Tracking provides data and information on health outcomes, the environment, population, and exposures, including hazardous algal blooms occurring in water bodies of the USA, both freshwater and marine.
CDC Public Notice on Hazardous Algae Blooms
It is not possible to know if a large growth, or bloom, of algae or cyanobacteria (also called blue-green algae) is harmful just by looking at it. Some blooms make toxins (poisons), which can still be in the water even when you can’t see a bloom. Learn how to protect yourself and your loved ones from harmful algae and cyanobacteria, what to do if you or a pet is exposed to them, and how to help prevent these blooms.
Swimming and Wading: Stay out of water with a bloom, rinse off if you or your pets are in contact with water
If you see signs of a bloom, stay out of the water and keep your pets out of the water. Do not fish, swim, boat, or play water sports in areas where this is possible harmful algae or cyanobacteria.
Do not go into or play in water that:
- Smells bad
- Looks discolored
- Has foam, scum, algal mats, or paint-like streaks on the surface
- Has dead fish or other animals washed up on its shore or beach
Protect your pets and livestock from getting sick by keeping them away from water with possible harmful algae or cyanobacteria. Do not let animals:
- Get in the water
- Drink the water
- Lick or eat mats of cyanobacteria or algae
- Eat or graze near the water
- Eat dead fish or other animals on the shore
- Go on the beach or shoreline
If you or your pets do go in water that may have a bloom, rinse yourself and your pets immediately afterward with tap water from a sink, shower, hose, or outdoor spigot. Do not let pets lick their fur until they have been rinsed. Pets may have harmful algae, cyanobacteria, or related toxins on their fur if they swim or play in water with a bloom.
Do not fill pools with water directly from lakes, rivers, or ponds. The water could contain algal or cyanobacterial toxins or unsafe levels of germs.
Drinking Water:
Follow local guidance about toxins in tap water
If you are notified of cyanobacteria or their toxins in your public drinking water supply, follow guidance from your local or state government or water utility to reduce the chances of you or your animals getting sick.
Harmful cyanobacteria may grow in water bodies that supply tap water. Although many water treatment plants can remove these toxins, tap water can be contaminated in certain situations. Cyanobacteria can also produce substances that are not harmful, but can change the taste or smell of tap water.
If you have concerns about the appearance, smell, or taste of tap water that you are using, contact your water utility or health department. Consider using bottled water for drinking and cooking until the problem is resolved.
Don’t boil water contaminated with toxins. Boiling water does not remove toxins and can concentrate the toxin.
Fish and shellfish:
Be aware of advisories and health risks related to eating contaminated fish and shellfish
Avoid eating very large reef fish (such as grouper or amberjack), especially the head, gut, liver, or roe (eggs). Large reef fish may be contaminated with ciguatoxin, the algal toxin that causes ciguatera fish poisoning. See the U.S. Food and Drug Administration’s (FDA) Fish and Fishery Products Hazards and Controls Guidance for more information on reef fish associated with unsafe levels of toxins.
Check for and follow local shellfish and fish advisories before eating any fish or shellfish you collect yourself. Algal and cyanobacterial toxins in fish or shellfish have no taste or odor. Cooking or preserving food does not remove toxins. Thus, you cannot tell if the seafood is safe by just looking at, smelling, or tasting it.
- Check to see if shellfish beds are closed. State shellfish control authorities (usually state health departments or other state agencies) are required to control for toxins where harmful algal blooms are likely to occur and toxins could build up in shellfish. Common ways state authorities control for algal toxins include routine monitoring for toxic algae or shellfish and testing shellfish for toxins before or after harvesting. If levels of toxins are unsafe, state authorities will close the area for shellfish harvesting until shellfish are safe to eat.
- Check safety advisories from the Environmental Protection Agency’s (EPA) Fish and Shellfish Advisories and Safe Eating Guidelines website.
Report any concerns to your local public health authorities.
EPA notice to the public on harmful algae
Harmful algal blooms can be green, blue, red or brown. They can be scummy or look like paint on the surface of the water.
What are harmful algal blooms?
Harmful algal blooms are overgrowths of algae in water. Some produce dangerous toxins in fresh or marine water but even nontoxic blooms hurt the environment and local economies.
What are the effects of harmful algal blooms?
Harmful algal blooms can:
- Produce extremely dangerous toxins that can sicken or kill people and animals
- Create dead zones in the water
- Raise treatment costs for drinking water
- Hurt industries that depend on clean water
The EPA has a role in enforcing environmental protection regulations to limit discharges into water bodies that contribute to the growth of harmful algal blooms.
The EPA also maintains list of Impaired Water Bodies by state, those water bodies that are not supporting their ideal uses for recreation, including swimming, fishing and wading. The EPA works with state authorities to identify water bodies that are not supporting their intended recreational uses, to set daily maximum loads for contaminants and nutrient load for impaired water bodies. The EPA works with state and other federal agencies to investigate and prosecute violations of the Clean Water Act, with a role in ordering watershed plans that limit discharges to these water bodies to allow for recovery.
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