Roughly, the timeframes are actually quite similar. The interesting thing about this situation is that not only are the barriers themselves the least costly and the easiest to put in, but the entire plumbing structure in the whole Chicago land area is dependent on the flows here. The construction work has to be integrated with other things that are being done with regard to water quality and flood control. If they were just going to build some barriers, put them in, and not worry about anything else, it could probably be done in three or four years or something like that. However, because of additional flood-control work and additional water-quality treatment work, the best estimate our consulting engineers came up with was that basically, to get the first stage of barriers in was going to take until 2022, and to complete the entire project, until about 2029. Obviously, that causes great concern because of what's going to happen in the interim. That's why the electric barrier is so important.
The other thing is the sampling for environmental DNA, and there's a lot of intensive commercial fishing being done, which we think is absolutely essential and critical in the short term, but not something we could rely on in the long term.
Those are not dates that I like, but this was the reality our consulting engineers advised us of.