Additional concerns about water quality in the ponds at Boise's Esther Simplot Park, after dangerous algal blooms were recently discovered in pond number two.
The City of Boise closed that pond Wednesday, Sept. 6, after water samples tested positive for algae species known to be toxic -- and potentially fatal -- if ingested.
City leaders say it isn't uncommon for this type of algae to develop in local ponds during the summer heat.
"We are already treating this pond, chemically, in order to take care of it," said Mike Journee, city spokesman. "That's not our first choice, to treat something chemically, but because of the potential for toxicity, we wanted to go ahead and get it done."
Folks are asked to avoid wading or swimming in the pond, and to not let their pets drink from it.
This is the second health concern related to these ponds this year. An E. coli outbreak closed the ponds for nearly two months earlier this summer.