The Fall River is good, although we had a couple of slower guide days there this week compared to the normal. It happens. 
There have been good PMD hatches and some small stones like yellow sally’s, little olive stones and also some olive caddis plus ants and beetles. 
Small streamers continue to be excellent with the squirrel leech and slum lords topping the list and Crostons Minnows and Mini Gulp great choices too. 
Perdigons, Zebra Midges, Ray Charles, Olive Scuds, Frenchie, Eggs and Mops are good nymphs out there. 
The Hatchery gets a lot more pressure than other areas of the river. There are a lot of places to spread out and not be on top of so many other people. Also go early at dawn, or after 4 PM and experience the river with less angling pressure.