Where has the Potable Water gone in the NF Campgrounds

Some is caused by forest fires. The fires run through and destroy the water system. No money to fix it and/or it takes several seasons for the repairs.

Also, if flooding occurred, it could have contaminated the water source so it is no longer potable.

I always bring a full tank of fresh water after having seen photos of various potable water tanks at public campgrounds. Not are all as "potable" as expected.