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When did you first realize there was something weird going on with the concrete that was going into the big dig.

Mix 404-291. I remember doing the work on it, and I didn't like it.

It was setting up too quick, And I remember talking with the boss.

I said, well, you know, what's going on here?

You know, this stuff is just tightening up very quick, setting up quick.

And he said, it's that new mix we decided to use.

And then thinking, oh, no, this is not going to go well.

Dan Johnston was a quality control technician for aggregate industries,

the largest supplier of concrete for the big dig.

But I have to say, he's not what I would have pictured.

Johnston has long hair down past his shoulder blades.

The shelves in his living room are filled with Stephen King, classic sci-fi,

with the books propped up by statues of dragons and gargoyles.

I might expect to find him at a Magic the Gathering tournament,

more than I would a concrete plant.

I ended up in construction first through the trades painting.

I was a worst cop until you ever run into.

Scared the hell out of the nails.

He never could hit it twice.

So I ended up meeting some friends who were in the testing business.

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