Baseline Concussion doc keeping

Where are leagues storing the teams baseline Scat testing? We do not have a secure location for a binder currently. Google docs is a option just curious if there are other options.
Lil Bit Nau T
Omaha Roller Derby

My league (which isn’t a WFTDA league) scans them into a secure share drive and then shreds the originals (unless the original went with the person to hospital).