Will an NPDES permit be required for my operation? : Common livestock scenarios.

This fact sheet is an outreach tool, designed to assist producers as they attempt to determine whether their operations require coverage under a CAFO National Pollutant Discharge Elimination System (NPEDS) permit. The following common livestock production scenarios and the correlating permitting status for each are designed to assist livestock producers in determining whether an operation requires a permit. A site evaluation by Agency staff may also provide design and operating criteria by which permit problems can be successfully reduced or avoided.

Performance of historic stone building materials and systems : observations by architects, engineers and building conservators : excerpts from workshop discussions held on August 10, 1987, funded by the U.S. Environmental Protection Agency and the U.S. Department of the Interior, National Park Service, Cultural Resources Acid Rain Research Program.

"June 1988."

Symposium on Physical-Mechanical Treatment of Wastewaters, United States Environmental Protection Agency, Cincinnati, Ohio, April 5th and 6th, 1977.

At head of title: USA-USSR Working Group on the Prevention of Water Pollution from Municipal and Industrial Sources.

Potential climatic impacts of increasing atmospheric CO with emphasis on water availability and hydrology in the United States : report prepared for the Environmental Protection Agency /

"April 1984."

Environmental Protection Agency research and development posture hearing [microform] : hearing before the Subcommittee on Natural Resources, Agricultural Research, and Environment of the Committee on Science and Technology, U.S. House of Representatives, Ninety-seventh Congress, first session, October 22, 1981.

"No. 123."

Fiscal years 1983 and 1984 Environmental Protection Agency research and development authorization [microform] : hearings before the Subcommittee on Natural Resources, Agriculture Research, and Environment of the Committee on Science and Technology, U.S. House of Representatives, Ninety-seventh Congress, second session, February 24, March 2, 19, 1982.

"No. 124."

Preliminary delineation and description of the regional aquifers of Tennessee--Basal sandstone west of the Valley and Ridge Province / by J.V. Brahana ... [et al.] ; prepared in cooperation with the U.S. Environmental Protection Agency ; [prepared by U.S. Geological Survey].

Shipping list no.: 86-886-P.

A primer regarding certain provisions of the Illinois groundwater protection act /

"January, 1988."

The biologic and economic assessment of Lindane : a report of the Lindane assessment team to the rebuttable presumption against registration of Lindane, submitted to the Environmental Protection Agency on March 19, 1980 /

In cooperation with State agricultural experiment stations, Cooperative Extension Services, other state agencies, U.S. Envioronmental Protection Agency.

The Biologic and economic assessment of 2,4,5-T : a report of the 2,4,5-T assessment team to the rebuttable presumption against registration of 2,4,5-T : submitted to the Environmental Protection Agency on February 15, 1979.

In cooperation with state agricultural experiment stations, Cooperative Extension Service, other state agencies, U.S. Environmental Protection Agency.

The Budget of the Environmental Protection Agency : an overview of selected proposals for 1985.

Item 1005-C

Assessing the Environmental Protection Agency's guidelines for cumulative risk assessment: Are they suitable for state agencies and EPA regional offices?

In the field of health risk analysis, cumulative risk assessment (CRA) is a necessary, although undeniably more complex approach to understanding the mixture of stressors, whether chemical or psychosocial, that exist in our environment, in all the pathways through which the chemicals may evolve—air, soil, or water, as well as the accumulation of these exposures over time. Related, or attached to the developing awareness of scientists understanding this mix of combined health effects is the burgeoning of the environmental justice movement, in which educated community advocates and even affected community members have called attention to evidence of a higher pollution burden in minority and/or lower SES communities. The intention of this paper is to 1) examine the development and understanding of CRA, primarily by the U.S. Environmental Protection Agency; 2) to assess several states agencies and some EPA regional offices' interpretation of CRA, again based primarily on EPA guidance, and 3) to analyze how CRA might be refined in its implementation—giving some cues as to how the EPA may more effectively interact with communities interested in CRA.^