Again, that highlights the complexity, because when we detect a bacteriological presence, that's evidence of pollution. However, if we don't detect a bacteriological presence, that doesn't equate to the absence of potential pollution from an area that can have collections two or three weeks later.
For an opening or a classification, we need a series of datasets that cover a variety of environmental conditions so we can have that assurance of safety. An example could be an area where there could be sporadic outflows or runoffs. If we don't have that pattern of sampling over time, we may miss the opportunity to detect those risks.