Discharges of pollutants into the navigable waters subject to the Rivers and Harbors Act of 1910 (
36 Stat. 593;
33 U.S.C.
421) and the Supervisory Harbors Act of 1888 (
25 Stat. 209;
33 U.S.C. 441–451b) shall be regulated pursuant to this chapter, and not subject to such Act of 1910 and the Act of 1888 except as to effect on navigation and anchorage.