This division does not grant to the conservancy any of the following:

1. (a) The power of a city or county to regulate land use.
2. (b) The power to regulate any activities on land, except as the owner of an interest in the land, or pursuant to an agreement with, or a license or grant of management authority from, the owner of an interest in the land.
3. (c) The power over water rights held by others.