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Hydrogeology and Hydrochemistry of the Midnite Mine, Northeastern Washington.

PB94171923

Publication Date	1994
Personal Author	Marcy, A. D.; Scheibner, B. J.; Toews, K. L.; Boldt, C. M. K.
Page Count	50
Abstract	The Midnite Mine is an inactive, hardrock uranium mine on the Spokane Indian Reservation, Stevens County, WA. Oxidation of sulfide-containing minerals, primarily pyrite, in the ore body produces large quantities of acidic water. An interception system installed by the mining company limits the discharge of contaminated water from the mine. The Bureau of Indian Affairs and the Bureau of Land Management have been actively involved in planning remediation of the disturbed areas. To assist in remediation, the U.S. Bureau of Mines initiated research to determine water quality and define groundwater flow characteristics. Bureau personnel designed a monitoring network, supervised installation of sampling wells, and collected and analyzed water samples. This Report of Investigations describes interpretation of data collected between December 1989 to April 1992.
Keywords	Washington(State) Mine waters Rock-fluid interactions Acid mine drainage Ground water Water flow Flow rates Water chemistry Hydrogeology Hydrochemistry Water pollution sampling Chemical composition Uranium mines Abandoned sites Computerized simulation Stevens County(Washington) Spokane Indian Reservation Midnite Mine
Source Agency	Bureau of Mines
NTIS Subject Category	68D - Water Pollution & Control 48A - Mineral Industries 48F - Geology & Geophysics
Corporate Authors	Bureau of Mines, Spokane, WA. Spokane Research Center.
Supplemental Notes	See also PB84-128677 and PB92-106392. Library of Congress catalog card no. 93-3159.
Document Type	Technical Report
Title Note	Rept. of investigations/1994.
NTIS Issue Number	199417

Hydrogeology and Hydrochemistry of the Midnite Mine, Northeastern Washington.

Hydrogeology and Hydrochemistry of the Midnite Mine, Northeastern Washington.
PB94171923

Publication Date	1994
Personal Author	Marcy, A. D.; Scheibner, B. J.; Toews, K. L.; Boldt, C. M. K.
Page Count	50
Abstract	The Midnite Mine is an inactive, hardrock uranium mine on the Spokane Indian Reservation, Stevens County, WA. Oxidation of sulfide-containing minerals, primarily pyrite, in the ore body produces large quantities of acidic water. An interception system installed by the mining company limits the discharge of contaminated water from the mine. The Bureau of Indian Affairs and the Bureau of Land Management have been actively involved in planning remediation of the disturbed areas. To assist in remediation, the U.S. Bureau of Mines initiated research to determine water quality and define groundwater flow characteristics. Bureau personnel designed a monitoring network, supervised installation of sampling wells, and collected and analyzed water samples. This Report of Investigations describes interpretation of data collected between December 1989 to April 1992.
Keywords	Washington(State) Mine waters Rock-fluid interactions Acid mine drainage Ground water Water flow Flow rates Water chemistry Hydrogeology Hydrochemistry Water pollution sampling Chemical composition Uranium mines Abandoned sites Computerized simulation Stevens County(Washington) Spokane Indian Reservation Midnite Mine
Source Agency	Bureau of Mines
NTIS Subject Category	68D - Water Pollution & Control 48A - Mineral Industries 48F - Geology & Geophysics
Corporate Authors	Bureau of Mines, Spokane, WA. Spokane Research Center.
Supplemental Notes	See also PB84-128677 and PB92-106392. Library of Congress catalog card no. 93-3159.
Document Type	Technical Report
Title Note	Rept. of investigations/1994.
NTIS Issue Number	199417