"at one location" is correct and usable in written English.
You can use this phrase to refer to a specific place or situation. Example: All of our offices are located at one location in the city center.
At one location they used constructed cases, based on current challenges on the ward.
On the majority of occasions (65%), individuals were only present at one location on a given weekend.
Transactions recorded on servers at one location are automatically transmitted to servers at another, remote, location.
TCE exhibited an inhibitory effect on toluene degradation at one location.
A mixed crew would sell the hybrid burger on Sept. 21, 2015, only at one location only.
For example, the Institute may close on one shift and not another or at one location and not another.
Consolidating a patient's prescriptions at one location helps pharmacists monitor refills and stay on the lookout for harmful interactions.
The study is on-going with the maximum record being 14 years at one location.
The SDM model validation is here presented at one location.
In contrast, Hg concentrations exhibited marked variability 'between-sponges' and were below detection at one location.
Shannon's diversity index decreased over time for both years at one location, regardless of soil amendment.
