quick fix to parse immobile components from mt3d listfile#644

Merged

langevin-usgs merged 7 commits intomodflowpy:developfrom briochh:hotfix_mtlist_immobile

Sep 15, 2019

+1,677-1

Commits on Aug 27, 2019

happend upon etvr not evtr in evt package
briochh
committed

Commits on Aug 28, 2019

Merge branch 'develop' of https://github.com/modflowpy/flopy into develop
briochh
committed