FYI - At the conference on Agriculture and the Environment, John Olson of the Iowa DNR said that the department has to have at least 10 samples per year in order to use data. If you are an IOWATER volunteer, you will probably have to get out to your stream and crack some ice in the winter in order to have enough data to satisfy this requirement. Peggy Murdock - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - For SC email list T-and-C, send: GET TERMS-AND-CONDITIONS.CURRENT to [log in to unmask]