OWASA representatives say it is fortunate that the number of days left of water for the area increased from 133 days last Monday to 137 days Friday.
Cane Creek Reservoir is 16 feet 7 inches below full capacity, and the University Lake lacks 4 feet 9 inches of needed water.
OWASA spokesman Greg Feller said the number fluctuates daily because residents are conserving more water, not from the occasional precipitation.
The demand for water has decreased greatly from August to September.
In August, residents used 11.5 million gallons per day as opposed to 8.4 million gallons used per day thus far this month.
"The demand (for water) is much lower than it was," Feller said.
Although Feller said the lakes are still only around 40 percent full, the remaining days of water can increase with correct conservation efforts.
OWASA Executive Director Ed Kerwin, said he is pleased with the area's response to the water restrictions implemented Sept. 9 and hopes people can continue to conserve water so the area can one day be out of the drought.
"We have seen a very nice reduction on customer demand," Kerwin said. "Unless we get some major rain, it's going to take many months to get out of the drought."