English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Hydrogeologic studies were conducted at the low-level radioactive-waste disposal site near Sheffield, Illinois, from 1976-84. Data in this report include water levels in wells, lake stages, inorganic, organic, and radiometric chemical analyses of ground and surface water, hydraulic conductivities of glacial materials, grain-size distribution, clay and carbonate mineralogy, and cation exchange capacities of the glacial materials* Also included are results of petrographic analyses, physical measurements of wells, stratigraphy and lithology of cores collected from test wells, and horizontal coordinates of wells. INTRODUCTION The report contains geologic and hydrologic data collected for studies to determine the hydrogeology of a low-level radioactive-waste disposal site and adjacent areas near Sheffield, Illinois, in Bureau County (fig. 1). The studies include the following: (1) Hydrogeology of the site, (2) ground-water flow through a pebbly-sand extending northeast from the site to a strip-mine lake and east to where the water table intercepts a tributary to Lawson Creek, and (3) areal extent and rate of migration of tritium moving through two ground-water pathways east of the site. The purpose of the report is to assemble most of the geologic and hydrologic data collected by the U.S. Geological Survey during these studies. The report contains data collected from October 1976 through July 1984. Additional data may be found in the reports listed below. Well records, ground-water quality data, and core descriptions for wells 501-533 and 535-537 are included in a report by Foster and Erickson (1980). Ground-water quality data were published in U.S. Geological Survey, Water Resoures Data for Illinois reports (1979-82). Water samples from wells and trenches were analyzed for inorganic, organic, and radioisotopes by the Brookhaven National Laboratory (Colombo, Weiss, and Francis, 1978; Weiss and Colombo, 1980; Pietrzak and Dayal, 1982). Table 1 includes water level records for U.S. Geological Survey wells for the period of record, October 1976 through July 1984 (fig. 2). Figure 1. Location of Sheffield low-level radioactive-waste disposal site. h t ] H t o * l f O o p » r tH O D O i t i c n S O I 1 o Q H O P > ( c n C H ( D r t 0 5 W r t ( 0 c r o o 3 C C O o« p _o " o o E L C O c < o X w o o Periodic stage readings for the strip-mine lake, July 1982 through September 1982, are given in table 2. Chemical analyses and temperature of water samples for 48 wells, the strip-mine lake, the creek at flume number 1, and the creek that drains the northeast part of the site are listed in table 3, parts A, B, C, D, and E. Table 4 lists hydraulic conductivity data from both laboratory permeability tests and single-well aquifer tests. The table contains hydraulic conductivity values for 27 wells located on site and in the area east of the site. The hydraulic conductivities include values for the lithologic units encountered in the saturated zone. Some laboratory determinations were made on core samples of lithologic units in the unsaturated zone* Table 5 lists laboratory analyses of grain-size distribution, clay and carbonate mineralogy, and cation exchange capacity for most lithologic units present on and east of the site. Samples were selected from core samples collected during drilling test wells 501-537, 560-574, and 577-584. Petrographic analyses were completed on samples selected from core samples obtained from wells 560-574 east of the site. Results of the petrographic analyses are in table 6. Well-construction details such as date drilled, total depth, casing depth, casing diameter, and altitude of top and bottom of screen are presented in table 7. Wells numbered 538 to 584, inclusive, were constructed in a two-step process. First, the casing was set and grouted. Second, the borehole was drilled to a depth necessary to accomodate the desired length of screen. The screen was then set in the casing using a packer. Wells 586 to 611 were constructed by drilling a borehole to the desired depth and placing a complete and continuous casing and screen assembly into the borehole. All wells have bentonite seals above the screened interval. Stratigraphy and lithologic descriptions of sediments penetrated by wells are presented in table 8. Table 9 lists the horizontal coordinates of each well. Coordinates are measured from an arbitrary reference point established for the site. The reference point is located at the intersection of the township roads southeast of the site (fig. 2). The northing and easting coordinates are found along the bottom and right edges of figure 2. The authors wish to acknowledge the following persons and organizations for their work in analyzing water and lithologic samples. Water samples were analyzed in the laboratory of the Illinois Environmental Protection Agency? grain-size distribution and clay mineralogy were done by the Illinois State Geological Survey (ISGS). We are especially indebted to Thomas M. Johnson and Keros Cartwright of the ISGS for their assistance. Carbonate mineralogy, cation-exchange capacity, and petrographic studies were done in the Department of Geology at the University of Illinois at Urbana, Illinois. We are grateful to the late John Hower, former Chairman, Department of Geology for his assistance. We are indebted to Philip Gustafson and David Ed of the Illinois Department of Nuclear Safety and Ronald K. Gaynor of US Ecology, Inc., for their advice and technical assistance, and David L. Siefken and Maxine Dunkelman of the Low-Level Waste Licensing Branch, U.S. Nuclear Regulatory Commission for their support and guidance. REFERENCES CITED Bouwer, H., and Rice, R. C., 1976, A slug test for determining hydraulic conductivity of unconfined aquifers with completely or partially penetrating wells: Water Resources Research, Vol. 12, No. 3, p. 423-428. Colombo, P., Weiss, A. J., and Francis, A. J., 1978; Evaluation of isotope migration land burial water chemistry at commercially operated lowlevel radioactive waste disposal sites: Progress Report No. 8, January-March 1978, Brookhaven National Laboratory, BNL-NUREG-50937, NUREG/CR-0537, p. 9, 17, 35-38. Foster, J. B., and Erickson, J. R. , 1980, Preliminary report on the hydrogeology of a low-level radioactive-waste disposal site near Sheffield, Illinois: U.S. Geological Survey Open-File Report 79-1545, 87 p. Pietrzak, R. F., and Dayal, R., 1982, Evaluation of isotope migration land burial water chemistry at commercially operated low-level radioactive waste disposal sites: Quarterly Progress Report, July-September 1982, Brookhaven National Laboratory, BNL-NUREG-32070, 17 p. U.S. Geological Survey, 1979-82, Water resources data for Illinois, water years 1978-81 volume 1: U.S. Geological Survey Water-Data Reports IL-78-1 to IL-81-1 (published annually). Weiss, A. J., and Colombo, P., 1980, Evaluation of isotope migration land burial water chemistry at commercially operated low-level radioactive waste disposal sites: Status Report Through September 30, 1979, Brookhaven National Laboratory, BNL-NUREG-51143, NUREG/CR-1289, p. 35-38 and 108-112. Willman, H. B., and Frye, J. C., 1970, Pleistocene stratigraphy of Illinois: Illinois State Geological Survey Bulletin 94, 204 p.

u.s. geological survey open file report/open-file report

Geologic and hydrologic data collected during 1976-1983 at the Sheffield low-level radioactive waste disposal site and adjacent areas, Sheffield, Illinois