NAWQAAN-205

Have some hard-coded ugliness that should go away soon, also placeholder for flow duration.  I also need to get the TN point data incorporated into the plot.
I was about to say "make sure to update the jsdoc to accommodate the new parameter" then I realized that I hadn't been jsdoc-ing these functions. Borp! Going forward, let's usejsdoc.org -- it's a website, a best practice, a way of life, all contained in a single hostname.