Methods to analyze well-test data influenced by variable-skin and cleanup effects are introduced, with emphasis on verifications of consistency in drawdown and buildup data. It is shown that a stable cleanup trend can be modeled by a simple hyperbolic skin factor in solutions for wells with constant skin. It is also shown that if the skin effect stabilizes at constant values within the general ...

The oil from the 2010 Deepwater Horizon spill in the Gulf of Mexico was documented by shoreline assessment teams as stranding on 1,773 km of shoreline. Beaches comprised 50.8%, marshes 44.9%, and other shoreline types 4.3% of the oiled shoreline. Shoreline cleanup activities were authorized on 660 km, or 73.3% of oiled beaches and up to 71 km, or 8.9% of oiled marshes and associated habitats. O...

This paper is the first in a proposed series of papers that will try to answer a question commonly directed to the Department of Energy: “How is risk used to make decisions in the Environmental Management (EM) program?” This paper summarizes the role that human health and safety risk plays in DOE cleanup decision-making under CERCLA and RCRA, two main regulatory drivers behind DOE cleanup effor...

The Hanford Site in southeastern Washington State is the location of the largest nuclear waste storage area in the United States. Since plutonium production facilities at Hanford were shut down in 1987,cleaning up the leftover waste at the Hanford Site has become one of the largest environmental cleanup projects in history. Legal, political, technical, and social aspects of the cleanup contribu...

The electron capture gas liquid chromatography test method for chick edema factor has been modified by replacing the alumina column s t ep with an additional sulfuric acid cleanup and a caustic wash which permits a reduction in sample cleanup time. Samples are subjected to double preliminary sulfuric acid cleanup and caustic wash and extracted each time with t r imethyl pentane. The final extra...

Removal of estradiol-17 beta from plasma by immunoaffinity chromatography on anti-estradiol antibodies coupled to Sepharose was investigated and compared with the use of charcoal adsorbent. Both methods completely removed added [3H]estradiol from pooled male plasma. In contrast to the adsorbent treatment, which caused marked changes in the biochemical composition of the plasma, immunoaffinity c...

OBJECTIVE To assess, at a clinical level, the mental health of former Chernobyl cleanup workers from Estonia by comparing them with same-age controls. METHOD The Mini International Neuropsychiatric Interview (MINI) was administered during 2011-2012 to 99 cleanup workers and 100 population-based controls previously screened for mental health symptoms. RESULTS Logistic regression analysis sho...