Well, not for recreational lakes. In lakes that are not affected by agriculture, the problem actually revolves around the fact that septic systems do not block phosphorus. At the present time, there are no septic systems available that are able to block phosphorus. The ones that are used now are designed to prevent bacterial pollution, which they are very effective at doing. However, technological developments will be needed in future. The fact remains that, in recreational lakes, the primary sources of phosphorus are human excrement and dishwashing detergents which still contain phosphorus. That phosphorus can be eliminated. In fact, we can eliminate quite quickly, and at very little cost, a small portion of it—about 10 per cent.
As regards land and lakes affected by agriculture, unsustainable agriculture is clearly the primary cause of phosphorus export. We clearly cannot afford to study this issue for another 100 years: we have to find a solution. The most logical choice would be to establish buffer strips where lumber production and agriculture would be combined. That is a good idea. That problem is far more difficult to resolve than the issue of phosphorus in dishwasher detergents. It has to be tackled. However, that is not something that is addressed in Bill C-469.