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concentrations to the Colorado State Department of Public Health and Environment <br />(CDPHE) radiation dose limits as described below. <br />7. Conduct annual follow-up monitoring using the same procedures described herein <br />and at the same grid-intersection target points during each year that the mine is in <br />operation. The monitoring results for each year will be submitted to the BLM <br />Montrose Office by December 31 of the year in which the monitoring was <br />conducted. The annual data report will include: <br />a. GIS-based map showing monitoring points and in an associated data table <br />showing sampling results in .pdf format and/or other format, if so specified; <br />b. A brief report relating the measured radiation concentrations to the State <br />Health Department radiation dose limits as described below. <br />8. Conduct monitoring at the beginning and end of reclamation of the site, using the <br />same procedures and grid-intersection target points. <br />9. If, during the lifetime of the mine, the mine is inactive for a period of six months or <br />more, the site will be monitored six-months after inactivity begins, using the same <br />monitoring procedure. These data will be submitted to BLM within 60 days of the <br />monitoring event. <br />10. Dust abatement at the mining site will be a key element to prevent spread of <br />radioactive dust off site. <br />11. It is understood that the ore stock pile will most likely show higher gamma <br />radiation values during mining operations, but after reclamation will meet <br />Department of Energy recreation-level radiation dose limits as described below. <br />The monitoring equipment and protocol to be used is as follows. <br />Auslog Geogamma sensor <br />Integrated GPS peripheral also by Auslog <br />Integrated Hewlet-Packard (HP) i-Paq pocket PC which controls the GPS and <br />gamma-data gathering functions through a "Bluetooth" connection. <br />The gamma sensor is a hand-held unit that is held at a height of about 2-feet <br />above ground level (just above the knee) while conducting measurements. <br />The person conducting the survey (surveyor) will walk to each grid-intersection <br />target point using the GPS navigation feature to find each point. At each point <br />GPS-location and gamma-level readings will be simultaneously recorded. <br />This data will be collected in the HP pocket computer, in the field, and will be <br />downloaded to ArcGis upon return to the office. <br />Colorado State Department of Public Health and Environment (CDPHE) and <br />Occupational Safety & Health Administration (OSHA) Radiation Dose Limits <br />Assumptions: <br />1. Given the outdoor environment and generally dispersed state of the radiation <br />sources at the mine site (ie: background levels, waste rock pile, ore pile, and <br />scattered pieces of waste rock or ore rock around site) it is assumed that exposure <br />to people on the ground surface is to the whole-body in general (total effective <br />dose) and not to specific individual organs, tissues, or lens of the eye. <br />2 <br />