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PERMIT#:M-1980-047 <br /> INSPECTOR'S INITIALS: ACY <br /> INSPECTION DATE: April 28,2021 <br /> Spent Shale Research Site (Unit ERS). Mr. Bower explained some of the history and experiments on <br /> revegetation that ExxonMobil conducted to support the future reclamation of the project. The plots with varying <br /> combinations of spent shale and topsoil all appear to be thriving. Long-term weather data is also collected at <br /> this location. <br /> LaSal Laydown Area (Unit 16A). This area will potentially be repurposed development of alternate forms of <br /> energy. The existing 10" water line will remain in place and be tied into the system to supply fresh water. <br /> Repurposing the pad and leaving the water line in place significantly reduces reclamation activities for this area <br /> and puts an existing disturbances to a beneficial use. <br /> South draw topsoil pile (Unit 14). This area is stabilized with vegetation. This disturbance will be repurposed <br /> for alternative forms of energy development. <br /> Monitoring wells with Pump. Mr. Bower indicated that the various monitoring wells located throughout the site <br /> are permitted for multi-use. Meaning that water can be utilized for agricultural purposes as well as industrial. <br /> Undisturbed areas will potentially be used for livestock grazing. While using the existing monitoring wells to <br /> supply water to stock ponds located throughout the property. In order for these wells to remain the Division will <br /> need documentation from DWR that the wells are in fact permitted to remain for agricultural use. <br /> Ridgetop/Northdraw Topsoil Pile (Unitl2). This is an enormous topsoil stockpile that has been stored for a long <br /> period of time. Given the size and length of storage it is unlikely that material much deeper than 3 feet below <br /> the surface will have retained any topsoil characteristics. Overall vegetation on the pile is outstanding with lush <br /> grasses waist high. This are is anticipated to be recontoured and utilized for alternative forms of energy <br /> development. <br /> Middle Fork Reservoir. A brief history of the construction measures taken to build the damn was discussed. <br /> Ongoing monitoring for stability was explained. Piezometers were observed within the damn to measure for <br /> saturation. This feature is to remain indefinitely and appears to be in proper working order. <br /> Overall the site appears to be in good condition. No signs of excessive erosion or instability were observed. The <br /> majority of disturbances appear to be stabilized with vegetation where practical. Excessive weeds or undesirable <br /> vegetation was not observed. No problems or possible violations were observed. <br /> Responses to this inspection report should be directed to: Amy Yeldell at the Division of Reclamation, Mining <br /> and Safety, 1313 Sherman St., Room 215, Denver, CO 80203. Direct contact can be made by phone at 303-866- <br /> 3567 Ext 8183 or via email at amy.yeldell@state.co.us <br /> Inspection Contact Address <br /> David Bower <br /> Exxon Mobil Corporation <br /> 627 24 1/2 Rd <br /> Grand Junction, CO 81505 <br /> Enclosure <br /> EC: Travis Marshall, Senior EPS, Grand Junction DRMS <br /> Page 3 of 9 <br />