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Case Study as part of a Web-based Technical and Regulatory Guidance

Hume Mine Site #1
Bates County, Missouri

1. Site Information
1.1 Contacts
Mike Larsen
Telephone: 573-751-4041
E-mail: mike.larsen@dnr.mo.gov

Continental Coal, Inc. (Owner)
10801 Mastin, Ste. 920
Overland Park, KS 66210

Hume Mine #1
Route 1, Box 15A
Hume, MO 64752

1.2 Name, Location, and Description
Hume Mine #1 (Hume Mine) is located in southwestern Bates County in western Missouri along the Kansas border (latitude 38.08322N, longitude 94.32219W, see Figure 1-1). Hume Mine was an open-pit surface coal mine comprising approximately 200 acres. Affected media include soil, sediment, surface water (e.g., stream, rivers, runoff, and drainage), and groundwater. Of the 200‑acre mine site, approximately 95% has been reclaimed.

Image-Hume Mine Site #1
Figure 1-1. Map of the Hume Mine Site area. Created with ArcGIS Desktop Version 9.3.1.

2. Redial Action and Technologies
At the Hume Mine, the primary impacts are from acidity. Reclamation of the site falls under the provisions of the Surface Mining Control and Reclamation Act (SMCRA). Two primary treatment technologies are in place at Hume Mine: backfilling/subaqueous disposal and capping/covers/grading. Backfilling/subaqueous disposal consists of filling the open pit once the resource (coal) is extracted. Capping/covers/grading consists of grading the mined area and covering with sub- and topsoils. Both treatment technologies have been operating for approximately five years. These treatment technologies are expected to be permanent remedial solutions. Site cleanup goals are based on the mitigation of human health risk and mitigation of ecological risk.

3. Performance
Performance criteria included the reestablishment of soil productivity and the protection of groundwater and surface water systems as compared to baseline (i.e., premining) conditions. Field parameters are used to evaluate the geochemistry of the water.

4. Costs
Cost of activities at this site are reported as a total:

5. Regulatory Challenges
None encountered.

6. Stakeholder Challenges
None encountered.

7. Other Challenges and Lessons Learned
No information available.

8. References
None reported

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