Lakes with Zebra Mussels
In the end the fact remains that Michigan still has or had 183 lakes with zebra mussels.  Cumulatively over time you can see how the number of lakes add up for each state.  Michigan, Indiana, and Wisconsin have taken the biggest leaps over the last several years.

The quagga mussel is still in the 4 lowest lakes and now in one of the Finger Lakes of New York (Seneca).