No algae toxins have been detected in Findlay drinking water, even though the city’s water treatment plant stopped drawing water from a reservoir containing algae last week.

Tests of both treated tap water and raw water at the plant have shown no detectable signs of microcystin, the algae-related toxin that fouled Toledo’s drinking water supply Aug. 2-4, water treatment plant worker Jeremy Carter said.

Officials at the Findlay Water Treatment plant noticed algae in reservoir No. 1, which is not unusual, Thursday or Friday last week, Mr. Carter said.

Treatment plant crews stopped drawing water from that reservoir and have been using water only from the plant’s reservoir No. 2, he said. The plant will continue to use only reservoir No. 2 as long as algae remains in reservoir No. 1, he said.

“This is really a nonissue,” Mr. Carter said.

Findlay Mayor Lydia Mihalik said the city tests for microcystin and other contaminants weekly and will continue to do so.

First Published October 3, 2014, 4:00 a.m.