The Frisco City Council voted unanimously Sept. 2 to return to a once-a-week watering schedule until the end of October.

After October, the city may switch to a winter watering schedule, Public Works Director Gary Hartwell said.

Since June, the city has been under modified watering restrictions, allowing residential watering once every other week.

The recommendation to move back to watering once a week came from the North Texas Municipal Water District who supplies Frisco's water. The NTMWD had received reports from several cities of water quality issues because of stagnant water left from less irrigation.

Though Frisco has not experienced those problems yet, stagnant water could have ultimately become an issue, according to a staff report. Frisco residents reduced their water usage by 60.8 percent in July, according to the report.

Frisco Mayor Maher Maso said the modified watering schedule has been an inconvenience for residents.

"If the water is available and is consistent and if our residents continue to conserve—which I believe they will—I think that flexibility helps them take care of their foundations and lawns," Maso said.

A monthly water report from city staff showed Lavon Lake levels are 1 foot lower than this time last year. Moving back to watering once a week could lower the lake levels by another 2 feet from now until the end of October, Hartwell said.

However, Hartwell said some Frisco residents plan to continue with the modified restrictions even if the modified restrictions end.

Councilman Scott Johnson said he was concerned that doing away with the modified restrictions would mean Frisco would not be a regional leader in terms of water conservation. However, he said Frisco residents have done more than asked to conserve their resources.

"We asked our citizens to jump through a huge hoop," Johnson said. "Fortunately, we have a lot of citizens who trust us to make tough decisions when there's a lot of information."