(Salt Lake City)- State regulators have upheld their tentative approval of expanded strip mining at a tar sands deposit, but with key caveats requiring operators to monitor nearby springs for potential groundwater contamination and submit documentation showing the mine is in compliance with air quality regulations. The decision issued Friday by Utah Division of Oil, Gas and Mining director John Baza is a partial victory for environmentalists who contend the PR Spring Mine is hydrologically connected with nearby springs below in the Book Cliffs. Moab-based Living Rivers has long argued the mine would damage springs vital to ranches and wildlife — but to no avail until now. changesteadfastly refused to require monitoring. Now the state is howing a change of heart after hearing testimony from a University of Utah geologist two weeks agoofficials have steadfastly refused to require monitoring. Now the state is showing a change of heart after hearing testimony from a University of Utah geologist two weeks ago.