MES
Runway width.
The first question you need answered is: What is the aircraft certified (recommended minimum) for as standard, by FAA, or if the aircraft has narrow runway certification available from Boeing-- usually for a price. It appears likely the aircraft is "certified" for 30m runway width.
The next thing is: Does the state of registry permit it ---- I am aware of several countries that will impose crosswind/wet-contaminated limitations lower than maximum demonstrated crosswind and/or do not recognise less than 45m for a turbojet over 50,000kg., regardless of original "certification".
I have no particular knowledge of the B717, but the above had been the starting point for several other small passenger aircraft.