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PERMIT#: M-1974-004 <br /> INSPECTOR'S INITIALS: ECS <br /> INSPECTION DATE: June 17,2021 <br /> OBSERVATIONS <br /> This was a routine monitoring inspection of the Specification Aggregate Quarry, a 112c construction materials <br /> operation operated by Martin Mareitta (MM). The site is located on the west side of Hwy 40 approximately 3 <br /> miles south of Golden CO and approximately% mile north of Interstate 70. This is a 325 acre site which <br /> produces primarily construction aggregate, although there are also asphalt and concrete batch plants located <br /> in the SE corner of the permit area. The current post mining land use for the site is rangeland, and the SEC) has <br /> determined that the open water lake area in the north pit area of the permit (photo 1) meets the standards <br /> for a "lined reservoir". This inspection was conducted by Eric Scott, Tim Cazier, and Michael Cunningham of <br /> DRMS who were accompanied on-site by Phillip Courtney of MM. DRMS completed a brief site specific safety <br /> training presentation at the site office prior to the inspection. <br /> During the inspection DRMS noted that the site, on the whole, appeared to be very well managed as was in <br /> compliance with the approved mining and reclamation plans. Dust and weed control efforts will need to be <br /> maintained as appropriate. There are excellent concurrent reclamation activities completed and underway in <br /> the south area of the pit (photo 2), and the working areas are maintained well. During this inspection all <br /> material removal and reclamation was taking part in the south pit area working from east to west. Material <br /> removal was taking place on the west side (photo 3), drill holes were being loaded for a blast near the center <br /> of the area (photo 4), and the eastern portion of the area was being stripped and prepped for drilling the next <br /> bench level (photo 5). Additionally, some scaling work had recently been completed in a limited part of the <br /> northeast wall area to remove some unstable material (photo 6). <br /> Care will need to be taken to prevent stockpiled material from leaving the permitted area on the north end of <br /> the site, but only one problem was noted during the inspection as listed on the first page of this report. The <br /> large number of smaller containers that have been placed in the secondary containment of the fueling station <br /> will need to be removed and appropriately stored in another location or disposed of properly by the corrective <br /> action date. <br /> No other issues were noted during this inspection. <br /> Page 2 of 4 <br />