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Chevron <br /> Chevron North Clear Creek Construction Materials Mine —M 2006-039 <br /> July 8, 2016 <br /> Page 3 of 3 <br /> ITEM 3 — Per Rule 3.1.5 (9) there are occasions when road and drainage maintenance requires removal of <br /> accumulated sediment to maintain conditions. Chevron would propose to use the mine operation area beside <br /> the gravel piles for stockpiling and management of this material per Rule 3.1.5 (9)(a). Imported inert material <br /> would include earth, sand, gravel, rock, concrete which has been in a hardened state for at least sixty days, <br /> masonry, asphalt paving fragments, and other inert solids as described more fully in Rule 1.1 (20). Per Rule <br /> 3.1.5 (9)(b) the imported inert material may accumulate in estimated volumes of 20 to 30 yards per year on <br /> average. This material will commonly be worked in as supplemental material with other quarried gravel <br /> material being removed and exported as road base and is not expected to accumulate to any significant <br /> quantities over the life of the mine. In some cases, if the material is suitable for top soil it may be set apart with <br /> the top soil stock pile to be placed in future mine reclamation. Placement of such inert imported product will be <br /> done in accordance with proper backfill placement procedures as required during reclamation. Chevron has <br /> provided a signed notice attached of this activity per Rule 3.1.5 (9)(c). SEE ATTACHED SIGNED <br /> NOTIFICATION FOR IMPORTED INERT MATERIAL <br /> ITEM 4 —The North Clear Creek Construction Materials Mine is active annually but operations are seasonally <br /> limited and less than 180 days. Per Rule 1.13.7 This TR ITEM 4 serves as Chevron's notice to the CDRMS to <br /> request the intermittent status identified by CDRMS during the inspection. <br /> ITEM 5 — Enclosed please find the required $216 Fee required for this TR submittal. SEE ATTACHED <br /> CHECK$216.00 to CDRMS <br /> For reference and to complete this submittal packet, I have included your correspondence from inspections of <br /> April 13, 2016 and May 16, 2016. If you have any questions concerning this response, please feel free to <br /> contact me at(970) -257-6021 or email me at rtgrubbs .chevron.com. <br /> Regards, <br /> Richard Grubbs, P.E. <br /> Senior Process Engineer <br /> HES Advisor—Waste and Water <br /> Chevron North America Exploration and Production Company(a Chevron U.S. A. Inc. division) <br /> Attachments (5) <br /> CC Kim Klahsen <br />