I saw your comment on the PlugShare entry asking for clarification.
If you zoom in on Medford, then use the “hamburger” menu and select recent activity, you can see that the user named Evolve created this entry on July 28. Unfortunately, they generally don’t allow you to contact a user directly unless that person has their home charger listed on PlugShare.
Possibly the best thing to do in this situation would be to directly contact the USDA site (phone number on Google Maps) and ask them for details.