Workers at Washington Closure Hanford, including at the 618-10 Burial Ground shown here, have reached a safety milestone.
Workers at Washington Closure Hanford, including at the 618-10 Burial Ground shown here, have reached a safety milestone. Tri-City Herald file
Workers at Washington Closure Hanford, including at the 618-10 Burial Ground shown here, have reached a safety milestone. Tri-City Herald file