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(Page 2) MINE ID # OR PROSPECTING ID #: rs-~nni_nRs INSPECTION DATE: »/n8/0.'~ INSPECTOR=S INITIALS: a iw OBSERVATIONS This was a standard warranty reduction inspection conducted by Tony Waldron of DMG along with Les Ewegen of 1241h Estates Partners. The inspection was conducted as the result of a financial warranty reduction request submitted by the operator to reduce their financial warranty form $435,500.00 to $51,328.00 on the northeast parcel. This would be a reduction of $384,172.OOof which $224,385.00 would be applied to the southwest parcel of the mine site. This would result in an overall release of$173, 057.00. The site is located just west of U.S. Hwy 85 and in between 124+h Avenue and 120~h Avenue near Henderson, Colorado. There are numerous gravel pits in this area mining the gravel rich alluvial terrace of the Platte River. This pit is situated approximately one mile east of the river on a more upland terrace. The active portion of the site was mined and reclaimed by a previous operator, however, a substantial amount of gravel was never mined before the market soured and the mine was reclaimed. As a result, the current operator decided to re- open the site and complete the mining before reclaiming the pit to a water storage reservoir for the City of Brighton. The permitted area is divided into two working parcels. The first one is at the intersection of U.S Hwy 85 and 124+^ Avenue and borders the Fulton Irrigation Canal on the west. The second parcel is southwest of the first and borders 120" Avenue on the south and the Fulton Canal on the east. This area was amended into the permit recently and the full financial warranty has not yet been posted on this site. However, some of the existing financial warranty was shifted over to this site so that preliminary site preparation could begin. The reclamation plan for the first parcel is a clay lined reservoir with 2H:1 V slopes comprised primarily of clay stone excavated from the bottom of the gravel pit. As this work is completed the plan was to release liability associated with various tasks and transfer it over to the second parcel until enough bond was in place to begin mining on that site. The post-mining land use for the second parcel is also a water storage reservoir, however, it will utilize a slurry wall instead of clay backfilled slopes. The plan is to install the slurry wall prior to initiating mining so that the pit can be de-watered once as mining progresses. The clay liner for the first parcel is approximately 80% complete and the seal appears to be solid. The southwest corner is still open to allow for the placement of a pump station in this location. Even with a small breach at this point, the pumping rate has reportedly dropped to less than the allowable 50,000 gallons per day from approximately 1,000,000 gallons per day. Testing for final State Engineer's approval will begin in earnest once the pump station is installed and the final portion of the liner is completed. The operator is requesting release of 80% of the liner installation cost, 100% of the pumping cost and 90% of the mobilization cost. However, since the final leak test has not been conducted, the Division is going to retain 10% of the dewatering cost and all of the mobilization cost. 80% of the liner cost will be released. In addition, a cost is going to be added to the second parcel for re-grading of material that is now stockpiled there from the first parcel. The cost associated with this task is $37,500. This will result in $261,885.00 being associated with the second parcel, $73,615.00 to remain with parcel one and a net release of $100,000.00. Therefore, the required bond amount for permit number M-2001-085 after this financial warranty reduction is $335,500.00. I & E Contact Address NAME: Les Eweaen OPERATOR: 124~h Estate Partners STREET: 454.5 F. b0~h Avenue, 1:r Flnnr CITY/STATE/ZIP: Cnmmarce City. CC) R0099 cc r CE t BL t FS P HW I' HMWMD (CH) I' SE I' WOCD (CH) I OTHER