Mr. Ted Massey:

To answer the question what rivers these are, the report published by the EPA last week and which is on its website contains a map clearly showing the location of the 20 rivers. The agency makes the point that it is looking at the monitoring stations located at the most downstream available sites on these rivers. That is the most accurate place to get a true picture of what is happening in that catchment overall. In terms of the frequency of monitoring, I am not sure if the EPA report mentions that. As Mr. Callanan said, that is a question for the EPA.