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Radiological survey of the inactive uranium-mill tailings at Maybell, Colorado

Description: Results of a radiological survey of the inactive uranium-mill tailings near Maybell, Colorado are presented. Measurements of external gamma exposure rate at 1 m above the tailings ranged 16 to 340 ..mu..R/hr with an average value of 65 ..mu..R/hr. Radionuclide analysis of offsite soil and sediment samples, as well as above-ground gamma exposure rate measurements defined the spread of contamination around the tailings pile. This spread is greatest toward the east, in the direction of surface wat… more
Date: March 1, 1980
Creator: Haywood, F. F.; Perdue, P. T. & Ellis, B. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Radiological survey of the inactive uranium-mill tailings at Slick Rock, Colorado

Description: Results of a radiological survey of two inactive mill sites near Slick Rock, Colorado, in April 1976 are presented. One mill, referred to in this report as North Continent (NC), was operated primarily for recovery of radium and vanadium and, only briefly, uranium. The Union Carbide Corporation (UCC) mill produced a uranium concentrate for processing elsewhere and, although low-level contamination with /sup 226/Ra was widespread at this site, the concentration of this nuclide in tailings was muc… more
Date: June 1, 1980
Creator: Haywood, F. F.; Perdue, P. T.; Chou, K. D. & Ellis, B. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Radiological survey of the inactive uranium-mill tailings at Ray Point, Texas

Description: The mill site and tailings pile near Ray Point, Texas, cover an area of approximately 140 hectares located 1.6 km west of Ray Point. The dry portion of the tailings pile is stabilized, and the whole pile is surrounded by a dike. It contains approximately 445,000 metric tons of material with an estimated average /sup 226/Ra concentration of 518 pCi/g. The average gamma-ray exposure rate 1 m above the pile is 300 ..mu..R/hr while the corresponding average for the mill site, including the former o… more
Date: November 1, 1980
Creator: Haywood, F. F.; Christian, D. J.; Ellis, B. S.; Loy, E. T. & Lorenzo, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Radiological survey of the inactive uranium-mill tailings at Falls City, Texas

Description: Results of a radiological survey conducted at the Falls City, Texas, site in July 1976 are presented. There are seven partial to fully stabilized tailings piles, and an overburden pile from an open-pit mine. Above ground gamma-ray exposure rate measurements show moderate levels of contamination throughout the area with a maximum exposure rate of 500 ..mu..R/hr above tailings pile 2. The average exposure rate over the different areas varied from 14 ..mu..R/hr over the southwest end of tailings p… more
Date: October 1, 1980
Creator: Haywood, F. F.; Christian, D. J.; Loy, E. T.; Lorenzo, D. & Ellis, B. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Radiological survey of the radioactive sands and residues at Lowman, Idaho

Description: No uranium ore milling was performed at the Lowman site, which is located approximately 0.8 km northeast of the town of Lowman, Idaho. Nevertheless, approximately 80,000 metric tons of radioactive sands and residues from upgrading of heavy minerals by physical processing methods remain on the site grounds. Measurements of external gamma radiation 1 m above the surface showed exposure rates up to 2.4 mR/hr on site, but the exposure rate off site quickly dropped to the background level in all dir… more
Date: August 1, 1980
Creator: Haywood, F. F.; Burden, J. E.; Ellis, B. S.; Loy, E. T. & Shinpaugh, W. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Radiological survey of the inactive uranium-mill tailings at Lakeview, Oregon

Description: The results of the radiological survey of the inactive uranium-mill site at Lakeview, Oregon, show that the average gamma-ray exposure rate 1 m above the tailings pile and the evaporation pond area (now dry) is close to the average background level for the area (11 ..mu..R/hr). The /sup 226/Ra concentration in most of the surface soil and sediment samples is also at or below the average background value for surface soil samples in the area (0.8 pCi/g). Calculated /sup 226/Ra concentrations, bas… more
Date: June 1, 1980
Creator: Haywood, F. F.; Burden, J. E.; Ellis, B. S.; Loy, E. T. & Shinpaugh, W. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Radiological survey of the inactive uranium-mill tailings at Durango, Colorado

Description: Results of a radiological survey of the inactive uranium-mill site at Durango, Colorado, conducted in April 1976, in cooperation with a team from Ford, Bacon and Davis Utah Inc., are presented together with descriptions of the instruments and techniques used to obtain the data. Direct above-ground gamma measurements and analysis of surface soil and sediment samples indicate movement of tailings from the piles toward Lightner Creek on the north and the Animas River on the east side of the piles.… more
Date: March 1, 1980
Creator: Haywood, F. F.; Perdue, P. T.; Shinpaugh, W. H.; Ellis, B. S. & Chou, K. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Radiological survey of the inactive uranium-mill tailings at Rifle, Colorado

Description: Results of radiological surveys of two inactive uranium-mill sites near Rifle, Colorado, in May 1976 are presented. These sites are referred to as Old Rifle and New Rifle. The calculated /sup 226/Ra inventory of the latter site is much higher than at the older mill location. Data on above-ground measurements of gamma exposure rates, surface and near-surface concentration of /sup 226/Ra in soil and sediment samples, concentration of /sup 226/Ra in water, calculated subsurface distribution of /su… more
Date: June 1, 1980
Creator: Haywood, F. F.; Jacobs, D. J.; Ellis, B. S.; Hubbard, H. M., Jr. & Shinpaugh, W. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Radiological survey of the inactive uranium-mill tailings at Naturita, Colorado

Description: Results of a radiological survey of the inactive uranium-mill site a Naturita, Colorado, conducted in May 1976, are presented. The spread of tailings was detected in the area surrounding the site by means of direct above ground gamma measurements and analysis of surface and subsurface soil samples. Radiochemical analyses of water samples in the vicinity of the tailings pile indicate local surface water contamination immediately downstream from the pile, although the /sup 226/Ra concentration in… more
Date: March 1, 1980
Creator: Haywood, F. F.; Jacobs, D. J.; Hubbard, H. M., Jr.; Ellis, B. S. & Shinpaugh, W. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Radiological survey of the inactive uranium-mill tailings at Gunnison, Colorado

Description: The findings of a radiological survey of the inactive uranium-mill site at Gunnison, Colorado, conducted in May 1976, are presented. Results of surface soil sample analyses and direct gamma radiation measurements indicate limited spread of tailings off the site. The only significant above background measurements off the site were obtained in an area previously covered by the tailings pile. There was little evidence of contamination of the surface or of unconfined groundwater in the vicinity of … more
Date: March 1, 1980
Creator: Haywood, F. F.; Jacobs, D. G.; Hubbard Jr., H. M.; Ellis, B. S. & Shinpaugh, W. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Radiological survey of the inactive uranium-mill tailings at the Spook site, Converse County, Wyoming

Description: Results of a radiological survey performed at the Spook site in Converse County, Wyoming, in June 1976, are presented. The mill at this site was located a short distance from the open-pit mine where the ore was obtained and where part of the tailings was dumped into the mine. Several piles of overburden or low-grade ore in the vicinity were included in the measurements of above-ground gamma exposure rate. The average exposure rate over these piles varied from 14 ..mu..R/hr, the average backgrou… more
Date: May 1, 1980
Creator: Haywood, F. F.; Christian, D. J.; Chou, K. D.; Ellis, B. S.; Lorenzo, D. & Shinpaugh, W. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Radiological survey of the inactive uranium-mill tailings at Riverton, Wyoming

Description: Results of a radiological survey performed at the Riverton, Wyoming site in July 1976, are presented. The average external gamma exposure rate at 1 m over the tailings pile was 56 ..mu..R/hr. The corresponding rate for the former mill area was 97 ..mu..R/hr. Movement of tailings particles in a dry wash is evident; but it appears that, in general, the earth cover over the tailings pile has been effective in limiting both wind and water erosion of the tailings. The calculated concentration of /su… more
Date: March 1, 1980
Creator: Haywood, F. F.; Lorenzo, D.; Christian, D. J.; Chou, K. D.; Ellis, B. S. & Shinpaugh, W. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Radiological survey of the inactive uranium-mill tailings at Ambrosia Lake, New Mexico

Description: The inactive uranium-mill tailings pile at Ambrosia Lake, New Mexico, contains approximately 1520 Ci of /sup 226/Ra in 2.4 million metric tons of tailings covering an area of 43 hectares. All of the former mill buildings were intact and, at the time of this survey, several were in use. The tailings have not been stabilized, but the crusty surface is reported to be resistant to wind erosion. The average gamma-ray exposure rate 1 m above the tailings is 720 ..mu..R/h while the average rate in the… more
Date: June 1, 1980
Creator: Haywood, F. F.; Christian, D. J.; Ellis, B. S.; Hubbard Jr., H. M.; Lorenzo, D. & Shinpaugh, W. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Radiological survey of the inactive uranium-mill tailings at Green River, Utah

Description: The uranium-mill tailings at Green River, Utah, are relatively low in /sup 226/Ra content and concentration (20 Ci and 140 pCi/g, respectively) because the mill was used to upgrade the uranium ore by separating the sand and slime fractions; most of the radium was transported along with the slimes to another mill site. Spread of tailings was observed in all directions, but near-background gamma exposure rates were reached at distances of 40 to 90 m from the edge of the pile. Water erosion of the… more
Date: March 1, 1980
Creator: Haywood, F. F.; Christian, D. J.; Ellis, B. S.; Hubbard Jr., H. M.; Lorenzo, D. & Shinpaugh, W. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Assessment of the radiological impact of the inactive uranium-mill tailings at Mexican Hat, Utah

Description: High surface soil concentrations of /sup 226/Ra and high above-ground measurements of gamma-ray intensity in the vicinity of the inactive uranium-mill tailings at Mexican Hat show both wind and water erosion of the tailings. The former mill area, occupied by a trade school at the time of this survey, shows a comparatively high level of contamination, probably from unprocessed ore on the surface of the ore storage area near the location of the former mill buildings. However, the estimated health… more
Date: March 1, 1980
Creator: Haywood, F. F.; Goldsmith, W. A.; Ellis, B. S.; Hubbard Jr., H. M.; Fox, W. F. & Shinpaugh, W. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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