Pen Argyl Municipal Authority, D-1975-028 CP-5. An application to renew approval of the applicant’s existing 0.95 mgd WWTP and its discharge. The WWTP will continue to discharge treated effluent to an unnamed tributary (UNT) of Waltz Creek at River Mile 190.65 - 4.7 - 4.1 - 0.6 (Delaware River - Martins Creek - Waltz Creek - UNT of Waltz Creek) in the drainage area of the section of the non-tidal Delaware River known as the Lower Delaware, which the Commission has classified as Special Protection Waters, in the Borough of Pen Argyl, Northampton County, Pennsylvania.