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V.J. Janzer

Publications and source records attributed to V.J. Janzer.

8 recordsLinked to original sources
USGS1985

Results of the US Geological Survey's second International Interlaboratory Analytical Comparison Study; Standard Reference Water Samples M-86 (major constituents), T-87 (trace constituents), and P-5 (precipitation snowmelt)

The U.S. Geological Survey began an interlaboratory testing program of standard-reference water samples in 1962. Program objectives have been to provide a means for participating anaytical laboratories to: (1) Identify analytical problems, (2) ascertain the accuracy and precision of common water analyses and analytical methods, and (3) obtain reference samples for continuing quality-assurance testing. Participation in this continuing quality-assurance program is mandatory for all domestic laboratories providing water-analysis data for Survey use and storage in the WATSTORE data-storage system, if appropriate standard-reference water samples are available. The program was expanded in October 1982 to include laboratories in other countries. This report presents analytical data submitted by the 53 laboratories in other countries that analyzed the standard-reference water samples distributed in October 1983. Statistical evaluation of the data and performance ratings achieved by the laboratories for each determination are given in nine tables. Comparisons of the most probable values for the constituents determined by both other countries and domestic laboratories also are presented. (USGS)

Water-Resources Investigations Report↗
USGS1983

Report of the U.S. Geological Survey's analytical evaluation program; standard reference water samples M-82 (major constituents), T-83 (trace constituents), N-8 (nutrients), and P-2 (precipitation snowmelt)

The U.S. Geological Survey began an interlaboratory testing program of reference water samples in 1962. Principal purposes of the program are to provide a means for participating water laboratories to: (1) identify analytical problem areas; (2) ascertain the accuracy and precision of common water analyses and analytical methods and; (3) provide reference samples for continuing quality assurance testing. Participation in this continuing quality assurance program is mandatory for all domestic laboratories providing water analysis data for Survey use. Analytical data submitted by the participating laboratories that analyzed the respective reference samples distributed in October 1982 are presented. Relative performance ratings achieved by the laboratories for each determination and statistical evaluation of the data are given in 14 tables. (Author 's abstract)

Open-File Report↗
USGS1976

Hydrology of the solid waste burial ground as related to potential migration of radionuclides, Idaho National Engineering Laboratory

This report describes the results of a study made in 1970-1974 to evaluate the geohydrologic and geochemical controls on subsurface migration of radionuclides from pits and trenches in the Idaho National Engineering Laboratory (INEL) solid waste burial ground and to determine the existence and extent of radionuclide migration, if any, from the burial ground. A total of about 1,700 sediment, rock, and water samples were collected from 10 observation wells drilled in and near the burial ground of Idaho National Engineering Laboratory, formerly the National Reactor Testing Station (NRTS). Within the burial ground area, the subsurface rocks are composed principally of basalt. Wind- and water-deposited sediments occur at the surface and in beds between the thicker basalt zones. Two principal sediment beds occur at about 110 feet (34 metres) and 240 feet (73 metres) below the land surface. The average thickness of the surficial sedimentary layer is about 15 feet (4.6 metres) while that of the two principal subsurface layers is 13 and 14 feet (4.0 and 4.3 metres), respectively. The water table in the aquifer beneath the burial ground is at a depth of about 580 feet (177 metres). Fission, activation, and transuranic elements were detected in some of the samples from the 110- and 240-foot (34- and 73-metre) sedimentary layers. Although some of the observed concentrations might be the result of statistical variance or artificial sample contamination, some migration of nuclides from the burial ground has apparently resulted from infiltration of precipitation and runoff water which, on occasion, flooded burial ground pits and trenches.

Open-File Report↗
USGS1973

A rapid method for the determination of radioactive cesium isotopes in water

Radioactive cesium in water is concentrated by ion-exchange on finely divided ammonium hexacyanocobalt ferrate (NCFC), and then determined by beta counting. No carrier is added, and the method can be used to determine beta-emitting cesium isotopes at the 10-pCi/l level using a 100-ml sample. Five samples can be prepared for counting, in approximately 3 hours, and the method is applicable to fresh and saline waters.

Journal of Research of the U.S. Geological Survey↗
USGS1972

Radiochemical analyses of surface water from U.S. Geological Survey hydrologic bench-mark stations

The U.S. Geological Survey's program for collecting and analyzing surface-water samples for radiochemical constituents at hydrologic bench-mark stations is described. Analytical methods used during the study are described briefly and data obtained from 55 of the network stations in the United States during the period from 1967 to 1971 are given in tabular form. Concentration values are reported for dissolved uranium, radium, gross alpha and gross beta radioactivity. Values are also given for suspended gross alpha radioactivity in terms of natural uranium. Suspended gross beta radioactivity is expressed both as the equilibrium mixture of strontium-90/yttrium-90 and as cesium-137. Other physical parameters reported which describe the samples include the concentrations of dissolved and suspended solids, the water temperature and stream discharge at the time of the sample collection.

Open-File Report↗