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Organization and individuals as shown on specific mine assessments. <br /> Includes individuals from USFS, DOE, and Bio/West, an environmental <br /> contractor. <br /> 02 - SITE STATUS <br /> A. ACTIVE [ --] B. INACTIVE [ -X- ] C. UNKNOWN [ -- ] <br /> 03 - YEARS OF OPERATION <br /> BEGINNING YEAR [ -Various as shown on specific mine assessments- ] <br /> ENDING YEAR [ -Various as shown on specific mine assessments- ] <br /> 04 - DESCRIPTION OF SUBSTANCE POSSIBLY PRESENT, KNOWN, OR ALLEGED <br /> The abandoned uranium mines evaluated within this assessment involve waste <br /> rock dumps containing a mixture of unmineralized rock and low grade <br /> uranium ore. Water which contains various levels of radioactive ions and <br /> in some, cases Selenium and Arsenic being discharged. <br /> j 05 - DESCRIPTION OF POTENTIAL HAZARD TO ENVIRONMENT AND/OR POPULATION <br /> Transportation of radioactive substances through ground water, <br /> surface water, and air may be endangering r.earby and onsite users and <br /> threatening downstream environments. Specific hazards are discussed in <br /> specific mine assessments <br /> J This assessment evaluates the nine inactive or abandoned uranium <br /> J mines on the Hanti-I-aSal National Forest with the greatest potential to <br /> effect lands within or near the Forest. Radioactive mine waste rock dumps <br /> are eroding from these mines and some of the mines are producing <br /> radioactive mine waters. Additionally, the sites may be visited by local <br /> residents or other people passing through the area. <br /> _ I <br /> 7 In 1989, a field inventory of all inactive or abandoned uranium <br /> mines on the Manti-LaSal National Forest was completed. The <br /> I purpose of the inventory was to collect data on safety and <br /> 7 environmental hazards and to rank the mines as to the relative <br /> hazards. This inventory study was conducted in part by geologists <br /> from the Manti-LaSal National Forest and in part by Bio West, Inc. <br /> as a contractor to the Hanti-LaSal National Forest. Most of the <br /> field work was limited to qualitative observations and visual <br /> estimates of quantities. Spatial relationships were determined by <br /> pace-and-compass and scaled sketches. Radiation measurements <br /> —j were made using a calibrated Eberline scintilometer. <br /> J <br /> I <br /> The study produced individual site reports which described and rated <br /> potential public safety and environmental hazards. Forest geologists <br /> ,r evaluated and ranked the sites for potential CERCLA violations. The nine <br /> mines evaluated in the following reports have the greatest potential to <br /> — — move radioactive substances into the hydrol-•ric system. The inventory <br /> r <br /> r <br />