Martin Kenny (Sligo-Leitrim, Sinn Fein) | Oireachtas source

When doing the tests and collecting and collating all the data, it can be clearly identified if there is a pollution problem in an area from an industrial, farming or human waste source. Every year, it is published that a certain number of septic tanks or one-off treatment plants around the country have been inspected and that a large proportion of them have failed. My understanding is that it is intelligence led, in that the water in that half-parish will have been tested and it will have been discovered that a problem is coming from human waste. That is why certain tanks are checked, rather than testing thousands of tanks that have not indicated a problem. Is a similar approach taken to industrial waste and farming waste?