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Author/Creator
- United States. Environmental Protection Agency. Office of Water32
- United States. Congress. House. Committee on Transportation and Infrastructure7
- United States. Congress. House. Committee on Transportation and Infrastructure. Subcommittee on Water Resources and Environment7
- United States. Environmental Protection Agency7
- Los Angeles County Flood Control District (Calif.)5
- Natural Resources Defense Council5
- United States. Court of Appeals (9th Circuit)5
- United States. Supreme Court5
- American Chemical Society. Division of Agrochemicals4
- Geological Survey (U.S.)4
- United States. Congress. Senate. Committee on Environment and Public Works4
- National Association of Flood and Stormwater Management Agencies3
- Santa Monica Baykeeper3
- United States. Congress. Senate. Committee on Environment and Public Works. Subcommittee on Superfund, Waste Management, and Regulatory Oversight3
- United States. Congress. Senate. Committee on Environment and Public Works. Subcommittee on Water and Wildlife3
- Nett, Mary T., 1952-2
- United States2
- United States. Congress. House. Committee on Science and Technology (2007-2011). Subcommittee on Technology and Innovation2
- United States. Congress. Senate. Committee on Environment and Public Works. Subcommittee on Fisheries, Wildlife, and Water2
- American Chemical Society. Meeting 19981