From Abstract: The report presents a compilation and technical assessment of the existing data on climate, geology, hydrology, water chemistry, and seismicity for four geothermal areas in the United States: Imperial Valley and The Geysers, California; Klamath Falls, Oregon; and the Rio Grande Rift Zone, New Mexico.

Appendix containing physical, chemical and biological studies of conditions at Miller Sands Island to accompany a report of the Miller Sands Marsh and Upland Habitat Development Site, Columbia River, Oregon.

Appendix containing geological survey averages data to accompany an aerial gamma ray and magnetic survey of the Hailey, Idaho Falls, Elk City quadrangles of Idaho and Montana, and the Boise quadrangle in Oregon and Idaho.

Appendix containing single record geological survey data of the Elk City quadrangle to accompany am aerial gamma ray and magnetic survey of the Hailey, Idaho Falls, Elk City quadrangles in Idaho and Montana, and the Boise quadrangle in Oregon and Idaho.

Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Elk City quadrangle including a detailed geologic summary, interpretation report, standard deviation maps, pseudo-contour maps, interpretation maps, flight line and geologic base map, and individual corrected profiles.

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Medford quadrangle in Oregon.

We are reporting progress on the predator-prey study for the period August 28, 1988 to September 1, 1989. The purpose of this research is to evaluate the feasibility of an index for assessment of predation in various reservoirs throughout the Columbia River basin, to describe the relationships among predator-caused mortality of smolts and physical and biological variables; to examine the feasibility of developing bounty, commercial or recreational fisheries on northern squawfish (Ptychocheilus oregonesis); and to develop a plan to evaluate the efficacy of predator control fisheries. Literature searches on predator abundance indexing and factors regulating fish population dynamics have been conducted; selected references have been summarized, and compiled in a key-word bibliography format. The feasibility of various types of predator abundance indices is being assessed; existing data relevant to mark-recapture, catch per unit effort (CPUE), physical and chemical variables, and reservoir morphology have been compiled, reviewed, and summarized. In cases where sufficient data exist, preliminary implementation of predator abundance indices has been demonstrated. Field sampling in John Day Reservoir was conducted during May to August, 1989 -- to continue time series data bases on northern squawfish CPUE and growth, and to evaluate the possibility of year class strength determinations of …

Contains Base Visit and clearinghouse Q&A from Army Team Analyst Elizabeth Bieri regarding Umatilla Chemical Depot, OR

This is an assessment report on the population of marine mammals along the U.S. Pacific coastline. These reports are ever-growing and subject to change annually.

This national report presents EPA's ocean dumping monitoring activities in fiscal year 2013. EPA conducted 13 surveys at 20 ocean disposal sites offshore from Puerto Rico, Virginia, South Carolina, Florida, Texas, Hawaii, and Oregon. This report summarizes each survey's objectives(s), activities, conclusions, and recommended environmental management actions.