"normal level" is a correct and usable phrase in written English.
For example, "The water level returned to its normal level after the rains stopped."
But they dropped back close to their normal level.
His finger-stick blood sugar was twice the normal level.
At their peak, arsenic levels were 300 times the normal level and lead was 3,500 times the normal level.
First, there's a question of what constitutes a "normal" level of spending and saving.
"That was followed, the antibody level was measured, and that was within the normal level.
A normal level of sport shouldn't bring it on; there is, however, a link with injury.
The normal level for this time of year is 80.5percentt.
"All of the players were well below their normal level, all of them," Del Bosque said.
Radiation levels in one control room spiked to a thousand times the normal level.
Taken in isolation, there were sound reasons for restoring the payroll tax to its normal level.
Rainfall has been less than 40% of its normal level.
