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2020-03-12_INSPECTION - M1992051
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2020-03-12_INSPECTION - M1992051
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Last modified
12/27/2024 6:14:22 PM
Creation date
3/12/2020 2:15:51 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1992051
IBM Index Class Name
INSPECTION
Doc Date
3/12/2020
Doc Name
Returned Mail
From
DRMS
To
Langston Concrete
Inspection Date
8/28/2019
Email Name
TC1
Media Type
D
Archive
No
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PERMIT#: M-1992-051 <br /> INSPECTOR'S INITIALS: TC1 <br /> INSPECTION DATE: August 28, 2019 <br /> OBSERVATIONS <br /> This inspection was conducted as part of the regular monitoring program. The Permittee (Langston Concrete) <br /> was represented during the inspection by Mr. Zac Langston. The Florence Sand & Gravel Pit site entrance is <br /> located approximately one quarter mile south of the S. Union St railroad crossing in Florence. This is a 112c sand <br /> and gravel mine. The site was active at the time of the inspection. <br /> Availability of Records: Annual fees are paid through July 2019. The previous inspection was on December 22, <br /> 2015. The approved post-mine land use is industrial. There are no open infractions. Both the surface and <br /> minerals are privately owned. <br /> Backfilling and Grading: Sufficient material (fines, considered excess spoil at this site) were observed to be <br /> available for backfill on the east end of the site (see Photo 1). Mr. Langston pointed out the progress they have <br /> made in backfilling the northeast corner (see Photo 2), indicating their effort was about 75 percent complete. <br /> Financial Warranty: The $38,100 bond held by the Division is adequate for the observed mine disturbance. <br /> Fish and Wildlife: No impact to wildlife was observed. <br /> Hydrologic Balance: No standing water or exposed groundwater was observed in the pit. The area were a small <br /> amount of exposed groundwater was observed during the 2015 inspection had been backfilled. <br /> Gen. Compliance with Mine Plan: The operation appeared to be in compliance with the approved mine plan. <br /> Google Earth was used to measure the disturbed area,which was estimated to be approximately 45 acres, based <br /> on 2018 imagery. Highwalls were estimated to vary between 30 and 40 feet in height and appeared stable (see <br /> Photo 3). <br /> Off-site Damage: The operation appeared to be confined to the permit boundary, based on Google Earth review <br /> and site observations. <br /> Processing Waste: Observed processing waste was limited to the aforementioned fines stockpiles to be used <br /> primarily for backfill. Some stockpiled broken concrete was observed (see Photo 4). <br /> Roads: Haul and access roads did not appear to be a source of sediment that could be tracked offsite. Mr. <br /> Langston indicated they implement dust control measures when needed. <br /> Reclamation Success: The only reclamation initiated is the backfill in the northeast portion of the site. <br /> Revegetation: No noxious weeds were observed. <br /> Sediment Control: No erosion problems were observed and no BMPs were needed at the time of the inspection. <br /> Support Facilities On-site: A screen plant was observed on site (see Photo 5). Mr. Langston indicated they also <br /> crush from time to time. <br /> Signs and Markers: The permit sign was properly posted (see Photo 6)and observed boundary marker locations, <br /> delineating the permit boundary (see Photo 7) were collected using a handheld Trimble Juno 3B GPS unit (see <br /> attached Post Inspection map). Based on post-inspection map work, it appears the boundary markers observed <br /> Page 2 of 7 <br />
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