2010-09-04 / News

Updates on algal toxin advisories

COLUMBUS – Due to the presence of algal toxins found within the water of a number of inland lakes across Ohio and Lake Erie, Ohio EPA, Ohio Department of Natural Resources (ODNR) and Ohio Department of Health (ODH) are releasing a comprehensive list of updated sampling results for algal toxins including microcystin, anatoxin-a, cylindrospermopsin and saxitoxin. All state parks remain open.

UPGRADED

LaDue Reservoir: Based on all the toxin levels at LaDue Reservoir, ODH, Ohio EPA, and ODNR are moving the lake to a no contact advisory. This means that people should avoid any and all contact with and ingestion of the lake water. This includes launching watercraft on the lake. Anatoxin-a levels ranged from 1.2-1.8 ppb. Earlier results announced August 20 also showed levels of microcystin ranging from 0.68-43 ppb and saxitoxin at 0.147-0.261 ppb.

REMAINING:

East Branch Reservoir: East Branch will remain at the toxin advisory level. The anatoxin-a levels ranged from 0.4-0.6 ppb. Earlier results announced August 20 also showed levels of microcystin ranging from 0.16 to 3.6 ppb and saxitoxin at 0.081 ppb.

SUMMARY OF

ADVISORIES:

No Contact Advisory: Avoid any and all contact with and ingestion of the lake water. This includes launching watercraft on the lakes.
Blue Rock State Park
LaDue Reservoir
Toxin Advisory: Avoid contact
with any algae and direct contact
with water.
Burr Oak State Park
Deer Creek State Park
Grand Lake St. Marys
East Branch Reservoir
Lake Alma State Park
Maumee Bay State Park (Lake
Erie bloom)
Wingfoot Lake State Park
Bloom Advisory: Cautionary
advisory to avoid contact with
any algae.
Alum Creek State Park (park
office pond)
Delaware State Park (unnamed

pond)
East Harbor State Park (Lake
Erie bloom)
Jackson Lake State Park
Lake Hope State Park
Mount Gilead State Park
Shawnee State Park (golf
course pond)
Scioto Trail State Park (Stewart
Lake only)
Stonelick State Park

The information is current as of 1 p.m. Wednesday, September 1.. More information about what each advisory means can be found on ODNR’s website at: ohiodnr. com/tabid/22957/Default.aspx.

Because toxin levels can fluctuate, the State will continue sampling from the lakes. Advisories will remain in effect until there have been two consecutive weeks of non-detection for anatoxin-a, saxitoxin and cylindrospermopsin and two consecutive weeks of microcystin below 20 ppb (set by the World Health Organization (WHO) as the upper end of the moderate-risk range for contact with microcystin). There are no WHO standards for the other toxins.

Additional information and data on Harmful Algal Blooms is online at:

Ohio EPA www.epa.ohio. gov/dsw/HAB.aspx

ODH www.odh.ohio.gov/features/ odhfeatures/algalblooms.

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