"Way back when," says Brad Binkowski, the corner of State and Gorham Streets in Madison was occupied by a brewery.  More recently it was the home of a service station.  Now it is on its way to becoming a $1.5 million, two-story building for retail stores and offices.  Binkowski, a partner in McCaughey Development Associates, the project's developer, says excavation at the site uncovered part of the brewery's cellar, the dark semi-circle indicated by the arrow.  From 1864 to 1919, the Hausmann Brewery operated at the spot.  State Street is in the foreground.  Binkowski's lament:  No brew remains, "just lots of brick."