Mr. John Sydenham:

I will deal with that question. Where the OPW does a large scheme, in most instances it will do the maintenance on the scheme. Our primary responsibility would be in the drainage districts where we have arterial drainage. Where we work with the local authority a lot of the responsibility to maintain it passes to the local authority on completion of the scheme. To answer the Chairman's question, it varies, depending on the scheme, and depending on the lead agency.