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2010-06-30_INSPECTION - M1977424
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2010-06-30_INSPECTION - M1977424
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Last modified
8/24/2016 4:14:13 PM
Creation date
7/2/2010 1:47:46 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1977424
IBM Index Class Name
INSPECTION
Doc Date
6/30/2010
Doc Name
Inspection report
From
DRMS
To
Occidental Oil Shale, Inc.
Inspection Date
6/15/2010
Email Name
THM
Media Type
D
Archive
No
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(Page 2) <br />MINE ID # OR PROSPECTING ID #: M-1977-424 <br />INSPECTION DATE: 06/15/2010 <br />OBSERVATIONS <br />INSPECTOR'S INITIALS THM <br />This inspection was conducted as part of the normal monitoring program established by the Colorado Division of <br />Reclamation, Mining and Safety (DRMS). Bruce Smith of Western Water & Land, Inc. (WWL) was present <br />representing Glen Springs Holdings, Inc. (GSHI) which manages Logan Wash for Occidental Oil Shale, Inc. (OOSI). <br />This was a complete inspection with the primary focus to observe the reclamation completed at the Logan Wash <br />mine. Also, the purpose of the inspection was to observe the repairs made to the evaporation pond liner and <br />determine if the proposed plan to conduct bi-monthly monitoring program, submitted on June 8, 2010 in response to <br />the March 18, 2010 DRMS inspection report, is sufficient. The proposed plan to conduct bi-monthly (twice per <br />month) inspections of the leak detection vault, automated pumping system, flow measurements of the leak detection <br />pipes, flow measurements of the retort water discharge to the pond and liner integrity, including the repaired <br />locations is an acceptable alternative to the corrective action described in the March 18, 2010 inspection report and <br />should be implemented immediately. <br />The main focus of the upper mine inspection was to observe the status of the completed reclamation and re- <br />vegetative success. The Lower Access Road was inspected first and walked in full length to the base of the Lower <br />Bench mine dump. The lower section of the Lower Access Road had minimal vegetation below and above the <br />locked gate until the road take a sharp left turn to the north. Adequate vegetation appeared to be established from <br />the point where the road turns north all the way to the base of the Lower Bench mine dump. However, some areas of <br />the northern section of the road in Dry Gulch did have "double track" bare spots that may require more time for <br />adequate vegetation to get established. <br />The Lower Bench mine dump has "islands" of various shrubs that appear to be well established and are no longer <br />irrigated. Also, the v-shaped silt fencing that was installed to protect the shrubs during planting has been removed <br />from all the plants on the lower mine dump. <br />The Upper Access Road to the mine was used to access the Research, Upper and Lower benches of the mine. The <br />access road did have evidence of rock fall but the overall condition of the road appeared to be stable. <br />The Research Mine Bench appeared to have the majority of the area adequately re-vegetated. A few Parachute <br />Penstemons were observed on the research mine bench on bare shale rock piles. The topsoil imported to the site <br />from the soil borrow area was used in this area and appeared to yield high revegetative success even on the steeper <br />slopes. <br />The Upper Bench appeared to have areas that could be considered completely revegetated. However, some areas <br />appeared to have "double track" bare patches. The Upper Bench had evidence of some slope sloughing that should <br />be periodically monitored/measured to develop a baseline measurement and determine how much the slope sloughs <br />in the future. The slough observed appeared to be approximately 100 feet wide by 20 feet in depth. The <br />southernmost portal on the Upper Bench was not completely closed and you could see a 2-3 inch gap at the top and <br />is not considered reclaimed. <br />The Lower Bench was not revegetated and will likely not be revegetated in the near future. Although no direct <br />revegetation effort has been made on the lower bench many volunteer shrubs were observed. The rip-rap channels <br />located on the north end of the mine dump appeared to be stable and properly functioning.
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