› Forums › Summary question 1 (P22) Groundwater Summary question 1 (P22) Posted by Nazrul on September 26, 2019 at 12:29 pm How come an aquifer that is underlain by an impermeable layer is an unconfined aquifer? Nazrul replied 6 years, 2 months ago 2 Members · 2 Replies 2 Replies Sorry, there were no replies found. Log In to Reply Log in to reply. Public All Members Only Me PublicAll MembersOnly Me Public All Members Only Me Log In to Reply Start of Discussion 0 of 0 replies June 2018 Now