Health advisory could be short lived
BROOKS PARK – Last week, the Ohio Department of Natural Resources posted warning signs at Brooks Beach warning visitors not to come in contact with water there.
The warning was posted after an algae bloom was seen there. A bloom can produce microcystins which can be a liver and nerve toxin. The World Health Organization has determined that microcystin levels of 20 parts per billion and below are safe for recreation. The limit for drinking water is one part per billion.
The warning was posted before the results of the first round of the now weekly microcystin tests were known. ODNR is sampling water at all three Buckeye Lake beaches.
Last week’s results were:
• Brooks Beach: 3.7 ppb
• Fairfield Beach: 1.6 ppb
• Crystal Beach: 1.5 ppb
All three are well within WHO’s limit for safe recreation and are close to the limit for drinking water.
The results from the second round of tests taken on June 5 are even better:
• Brooks Beach: 0.66 ppb
• Fairfield Beach: 1.0 ppb
• Crystal Beach: 0.47 ppb
All three tests meet the standard for drinking water. That doesn’t mean visitors should drink lake water as there are other criteria for safe drinking water.
The warning signs will be removed next week provided that the next round of microcystin levels are at or below 20 ppb and there is no evidence of an algal bloom.