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Bear Creek

Watson, D. Leavitt, M., Smith, C., Klasson, T., Bostick, B., Liang, L., and Moss, D. (1997). Bear Creek valley characterization area mixed wastes passive in situ treatment technology demonstration project - status report, Proceedings of the 1997 International Containment Technology Conference and Exhibition, St. Petersburg, FL, Feb. 9-12, 1997, 730-736. [Pg.138]

Chase GR. 1989. Correlation between airborne uranium exposure and uranium urinalysis results at Bear Creek Uranium. Health Phys 56(2) 195-199. [Pg.354]

Gunter BJ. 1980. Health hazard evaluation Determination report HE 80-71-703. Bear Creek Uranium Company, Douglas, WY. Cincinnati, OH U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health. NTIS PB81-111221. [Pg.211]

Our consultant is Professor Barry M. Preesip at the Department of Chemistry, Bear Creek University. He has a special interest in water analysis and is an analytical chemist. He is very familiar with similar methods for sulfate analysis. [Pg.144]

Description "Bear Creek Project, Sample MW12"... [Pg.86]

Figure 6.1. Overview of the Bear Creek Uranium tailings site, looking toward the south. The white buildings on the left, now demolished, indicate where the uranium mill operated from the 1970s to the mid-1980s. Spent acids and tailings slurries were piped to tailings ponds behind the tailings dams. This site has now been reclaimed. Figure 6.1. Overview of the Bear Creek Uranium tailings site, looking toward the south. The white buildings on the left, now demolished, indicate where the uranium mill operated from the 1970s to the mid-1980s. Spent acids and tailings slurries were piped to tailings ponds behind the tailings dams. This site has now been reclaimed.
Figure 6.2. Plan view of the Bear Creek mine site and tailings impoundment. Figure 6.2. Plan view of the Bear Creek mine site and tailings impoundment.
Figures 6.5-6.9 show the calculated Saturation Indices (SI) for carbonate, sulfate, iron, aluminum, and manganese minerals at Bear Creek. The calculation results show that a number of minerals are supersaturated in our samples. However, not all minerals that are indicated to be supersaturated are actually present at the site. Our discussion here is thus focused on how to interpret the calculated SI values, or to identify the mineral phases that are most likely relevant to the system. Figures 6.5-6.9 show the calculated Saturation Indices (SI) for carbonate, sulfate, iron, aluminum, and manganese minerals at Bear Creek. The calculation results show that a number of minerals are supersaturated in our samples. However, not all minerals that are indicated to be supersaturated are actually present at the site. Our discussion here is thus focused on how to interpret the calculated SI values, or to identify the mineral phases that are most likely relevant to the system.
In the discussion of the Bear Creek Uranium site in 6.2, we note that more than a dozen regulated metals and radionuclides have elevated concentrations in the acidic plume. The relative mobility of the radionuclides at the leading edge of the plume can be estimated by using the diffusive double layer model of Dzombak and Morel (1990). [Pg.151]

In this section we illustrate the computed alkalinity titration discussed in Chapter 3. We use phreeqc to perform the calculations, using sample MW-36 from the Bear Creek Uranium site (see Chapter 6). The idea is... [Pg.159]

Here, we use the Bear Creek Uranium example discussed in 6.2 to calculate the acidity of contaminated groundwater and tailings fluids. If the total acidity of groundwater and contaminated sediments, as well as the neutralization capacity of the aquifer matrix are known, the distance that the acid plume will migrate can be estimated based on mass balance. [Pg.161]

As we discussed in 6.2, the samples from the monitoring wells at the Bear Creek Uranium site are observed to fall into four fairly well defined pH zones (Figure 6.2). Compositional zones such as this are often produced by mineral buffering of the solutions. This process can be illustrated by using reaction path modeling. [Pg.164]

Table 10.2. phreeqc input for a reactive transport model to simulate fluid pH buffering at the Bear Creek site. This is a better alternative to the titration model in described Chapter 8. [Pg.214]

TITLE Transport Bear Creek example in Phreeqc 2.0 SOLUTION 0 incoming solution units ppm... [Pg.219]

GeoTrans, Inc., 1987a. Tailings seepage control analysis for Bear Creek Uranium Company, Converse Co., Wyoming. Project No. 126.1. [Pg.266]


See other pages where Bear Creek is mentioned: [Pg.509]    [Pg.489]    [Pg.368]    [Pg.392]    [Pg.145]    [Pg.89]    [Pg.107]    [Pg.111]    [Pg.123]    [Pg.125]    [Pg.152]    [Pg.212]    [Pg.215]   
See also in sourсe #XX -- [ Pg.107 , Pg.215 ]




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