Hi Bob, this chart was put together by Clymer Farner Barley Engineering firm in relation to our ongoing water battle in Chitty Chatty. Here is a good source to figure the MAWA
http://www.sccoplanning.com/Portals/...Calculated.pdf
In the next few weeks, I will again be reaching out to Trey Arnett of the Southeast Wildwood Water Authority to get the Evapotranspiration for our area, particularly for each month since it will change. Once we have that information, it will give us a better understanding of how much we should be using.