Current Ground Water Quality 



The Clark Fork Basin contains a number of contaminant 

 sources that degrade or have the potential to degrade the 

 ground water system. Many of these sources, including 

 tailings ponds, floodplain tailings, reservoir sediments, 

 pole treatment facilities, and wastewater treatment plants, 

 were described earlier in this chapter. 



Several industries in the basin are permitted by the 

 DHES-Water Quality Bureau under the Montana Ground Water 

 Pollution Control System (MGWPCS) program. These are listed 

 in Table 3-24. 



Solid waste sites in the basin are another source of a 

 variety of pollutants that may cause localized ground or 

 surface water problems. Solid waste sites in the basin 

 licensed by the DHES-SHWB are listed in Table 3-25. Some of 

 these landfills are thought to be causing contamination of 

 both ground water and surface water. The effects of others 

 are unknown. 



TABLE 3-24. 



ACTIVE MGWPCS PERMITS IN DEER LODGE, GRANITE, 

 MINERAL, MISSOULA, POWELL, AND SILVER BOW 

 COUNTIES AS OF 11-15-88 



Permittee 



County 



Date Date 

 Issued Expires 



CSC Mining Company 

 P. O. Box 1086 

 Wallace, ID 83873 



Granite 



3-11-85 1-31-92 



Contact Mining Company, Inc. 

 P. 0. Box 337 

 Philipsburg, MT 59858 



Granite 



10-19-83 12-31-90 



MCM Development Corp. 

 120 West Park Street 

 Butte, MT 59701 



Granite 



8-14-87 7-31-92 



Silver Eagle Mining Co. 

 P.O. Box 5628 

 Helena, MT 59604 



Powell 



8-16-88 10-31-94 



MPM Partnership 

 P.O. Box 237 

 516 W. Broadway 

 Philipsburg, MT 59858 



Granite 



10-20-88 9-30-93 



Source: DHES 1988b. 



3-104 



