Inventory is a key issue. It's one of the issues identified by the American Water Works Association and one that we identified ourselves. It will vary, no question, from one municipality or one utility to the next. Some municipalities have great records and some have poor. That is part of the issue.
I think that's one of the key tasks to address initially. We ourselves have a decent indication of what we have on the public side, with very good records. On the private side, it's not as good. However, I should point out that we will take advantage of a program that we're about to do in our municipality. We're upgrading our meters to advanced metering infrastructure, so we'll have the opportunity to be in the basement of every customer's home. We will take that opportunity to try to identify pipe in the basement as at least another identifier that helps us decide if that service needs replacement.
We're also doing research with a lot of research foundations to look at techniques that are not intrusive and can go over the ground to identify the materials of the pipe itself. That has probably the most promise. This is technology that was declassified after.... It's one of the unfortunate aspects of war that techniques used to find materials buried below the ground are associated with improvised explosive devices. Of course, this is an opportunity to turn swords into ploughshares. We can use these technologies to find materials that need to be replaced.