Combined Sewer Overflow Control Act

Combined Sewer Overflow Control Act - Amends the Federal Water Pollution Control Act to make combined sewer overflow (CSO) (defined as the discharge of untreated sanitary wastes and stormwater from combined stormwater and sanitary sewers) unlawful, except in accordance with the requirements of this Act.

Requires any person owning or operating a combined stormwater and sanitary sewer from which there is CSO to notify the Administrator of the Environmental Protection Agency or the State of the CSO.

Directs the Administrator to issue any such person a permit authorizing such CSO which: (1) prohibits dry water overflow; (2) requires the permittee to implement technically sound operation and maintenance practices for its sewer system designed to minimize CSO and to maximize the use of its facilities to minimize CSO; and (3) implements the study and plan required by this Act to the extent such study and plan has not been previously implemented. Provides that permits authorizing CSO issued prior to the enactment of this Act shall remain in effect until reissued or modified in accordance with this Act.

Requires: (1) any such person to file with the Administrator a complete (phase II) permit application not later than 12 months after the effective date of the regulations required by this Act or two years after the effective date of this Act, whichever occurs last (deadline); and (2) the Administrator, within 12 months after the receipt of such application, to issue a permit to the applicant authorizing the CSO.

Mandates that: (1) each such person complete a study and evaluation of its combined sewer system and CSO and prepare a CSO control plan by the deadline; and (2) the Administrator, within two years, establish regulations setting forth the phase II permit requirements for CSO.

Sets forth additional requirements with respect to: (1) regulation contents; (2) technology-based controls; and (3) water quality-based controls.

Directs the Administrator to: (1) establish, within six months, a technological clearinghouse disseminating information on controlling CSO available to States and local governments; and (2) report to the Congress, within two years, with a list of CSO outfalls, the nature and location of such outfalls, and the estimated Federal share of such costs.

Requires that, whenever a State reviews water quality standards, it revises and adopts standards for those waters receiving storm sewer discharges and CSO overflow during wet weather conditions.

Authorizes appropriations.

Directs the Administrator to: (1) fund that portion of the cost of CSO controls beyond the financial capability of local governments upon the request of the Governor of the State in which the local government is located, subject to specified requirements; (2) set regulatory guidelines to be used by individual local governments with respect to CSO control costs; and (3) establish priorities for individual CSO control projects to be funded.