A bill to amend Public Law 92-500, the Water Pollution Control Act Amendments of 1972.

[AI summary unavailable — showing source text] Amends the Federal Water Pollution Control Act to authorize an exemption from Federal permit requirements for point sources from agricultural activities. Requires a permit in cases where the agricultural point source is determined by the Administrator of the Environmental Protection Agency to be causing a violation of a numerical standard for any pollutant in the receiving waters. Directs the Administrator and the Secretaries of Agriculture and the Interior to develop regulations to define normal and reasonable irrigation practices to govern the issuance of such permits. Authorizes the Administrator to delegate to States or interstate programs the authority to exempt discharges of agricultural pollutants from permit requirements in accordance with conditions prescribed by this Act.…