Artesia High School MESA looking for ideas!

I am the sponsor for the MESA club at Artesia High School. Each year we develop a project for our MESA Day competition. This year the project is to have something to do with water. MESA is currently big into using Arduino circuit boards and the programming of the boards. Since Arduino is involved, the students will need to use inputs and outputs to either detect, control, monitor, and/or send out an alarm. I was asking individuals at the high school for ideas and Lynn Worley suggested I contact you to see if you had any ideas as to what we could do for a competition project. I have already contacted some individuals from the dairy industry and Dr. Flynn with NMSU. I am waiting to hear from Dr. Flynn, but I have received a couple ideas from the dairy industry. My cell phone number is 575-749-3338. Thank you, Mark Stone If you have and idea contact on a project that would help Agriculture contact Mark or my self.