Report: Beach goo is decaying matter
By Bruce Ritchie
DEMOCRAT STAFF WRITER OCT 11
A sticky goo found along the shoreline at Wakulla Beach last month is decaying organic matter that includes sea grasses, according to a state report issued Tuesday.
The foul-smelling material found in the St. Marks National Wildlife Refuge doesn't appear to be sewage, as some residents and one water-quality expert suggested, according to the Florida Department of Environmental Protection report.
"While the size and volume of this event was unusual, we feel it was a natural occurrence," DEP spokeswoman Sally Cooey told the Democrat in an e-mail.
A DEP waste inspector who visited the site Sept. 15 said the material didn't appear to be sewage. A DEP biologist later said the material was a die-off of microscopic algae called diatoms, Cooey said.
But Sean McGlynn, a water-quality specialist from Tallahassee, said the material he collected contained few diatoms. He said it contained high bacteria levels that were more consistent with sewage.
The disagreement led Democrat readers to speculate on various theories including the possibility that a septic-tank service had disposed of waste. DEP scientists visited the site Sept. 28 and Sept. 30 to collect new samples for analysis.
Cooey said Tuesday the new report supports the earlier conclusion by the DEP inspector. The report said the material contained some unidentifiable organic matter and diatoms in addition to decaying sea grasses.
The samples didn't contain metals or a cholesterol byproduct called coprostanol, both of which are present in city of Tallahassee sewage sludge, the report said. The report also said high bacteria levels have been found in coastal sediment elsewhere in the St. Marks National Wildlife Refuge.
McGlynn said Tuesday that it may take more time to determine what caused the material to wash up on shore - even if it is a natural phenomenon.
"The fact is nobody has ever seen anything like that or anything that smelled so foul anywhere around here," McGlynn said.
