350 300 --.. 250 _J .....____ 0) ::::1.. .....___,. Operations '-- GJ +---' 200 -------< on Standby >--- '-- GJ Q_ V) E (D '---- 0) 0 '-- u E 150 100 50 0 Operations Resumed October 2015 2014-2015 40 10 Mine Shaft Depth 450ft 20 30 2016 Canyon Mine Shaft Water Contamination 40 10 Mine Shaft Depth 1,400ft 20 30 2017 - Arsenic 40 10 Mine Shaft Depth 1,450ft 20 30 2018 - Uranium (dissolved) Uranium EPA Drinking Water Maximum Arsenic EPA Drinking Water Maximum 40 10 Mine Shaft Depth 1,470ft 20 30 40 2019 10 20 30 40 2020 GRAND CANYON TRUST GRAPHIC BY STEPHANIE SMITH Data Source: Canyon Mine Non-Storm Water lmpoundment 3.04 General Aquifer Protection Permit No. P-100333 Annual Report for 2016, 2017, 2018, 2019, & 2020