In the US, the federal Food and Drug Administration regulates bottled water production as a food product. I have not made a comparison of FDA regs versus EPA's drinking water regs, so I can't state an opinion as to which is more stringent. As other posters have stated, the vast majority of US...
Thanks for your comments. Based on my own research, I agree that there is not much literature on the FTW rate. I have contacted AWWA for assistance in finding JAWWA articles where FTW was addressed, hoping to find some discussion of FTW rate setting.
Lacking any "official" criteria, we are...
Thanks for your reply, bimr, but I may need to clarify my request. Please indulge me.
Our filters are 42" of anthracite over a graded gravel support. We backwash using air scour alone (5 SCFM/SF), followed by a concurrent air and water stage (air at 5 SCFM/SF and water at 8 gpm/SF), and...
Our utility is planning to install filter-to-waste piping, valves and appurtenant controls in existing drinking water filters, even though we are a ground water source water system (not under the direct influence of surface water), and we are under no requirement by our state health agency to do...
