I finally got confirmation from the Birmingham Water Works regarding the online payments and charges. This came to me this morning via email:
There will be a service charge of $2.50 every time a customer uses the online payment system. Our automatic draft is a free service and I will send you the forms at your request. If you have any further questions or comments please contact me via reply email or the information provided below.
Customer Service Representative
Birmingham Water Works and Sewer Board
There you have it, right from the proverbial horse’s mouth.