2017-04-11_REPORT - M1977424 ‎(2)‎

• Permit No: M1977424
• IBM Index Class Name: Report
• Doc Date: 4/11/2017
• Doc Name: Annual Fee/Report/Map
• From: Occidental Oil Shale, Inc.
• To: DRMS
• Annual Report Year: 2017
• Email Name: THM
• Media Type: D
• Archive: No

Logan Wash Mine Annual Report
Permit No. M-1977-424
Areas Not Under Reclamation
Areas currently not expected to be submitted for reclamation release in the near future are the
Lower Bench (Area 3, 2.1 acres), the Lower Bench Road (Area 13, 1.5 acres), the Upper Access
Road (4.8 acres) and the Evaporation Pond Access Road (1.3 acres), and the Evaporation Pond
and Pipeline (Area 23, 10.2 acres). In addition, the lower segment of the Lower Access Road,
approximately 1.4 acres, will be reclaimed after final mine closure. This portion of the road is
used to access Well LWCW-1 A and the Upper Manhole monitoring locations. These unreclaimed
surface areas comprise an approximate total of 21.3 acres.
Areas To Be Requested For Release
Table 1.0 shows that the estimated actual disturbed acreage was 135.2 acres and of this amount,
61.7 acres was not to be reclaimed because Logan Wash Road is to remain in place for other
users, and a parcel of land was transferred to Chevron. Therefore, the total estimated acreage
requiring reclamation is 73.5 acres.
OOSI anticipates requesting release of warranty for portions of Areas 1 (13.4 acres), Area 2 (0.7
acres), and Areas 4 (4.3 acres), and 10 (0.2 acres), the revegetated portions of Area 13 (Upper
Bench Road, 1.4 acres, and the upper portion of the Lower Access Road (0.4 acres), and the Soil
Barrow Area (0.7 acres) in the near future. These revegetated areas total approximately 21.1
acres.
As of this reporting period, approximately 31.3 acres have been released of warranty, 21.1 acres
are under reclamation, and 21.3 acres are not currently under reclamation. Therefore, a total of
42.4 acres require release at this time. It is anticipated that most of the acres under reclamation
will be submitted for warranty release in the near future.
The following table summarizes reclamation status at Logan Wash Mine.
Acreage Status Category
Estimated Acreage
Total original disturbed/used acres
135.2
Acres not to be reclaimed (Logan Wash Road, Chevron land)
61.7
Total acres requiring reclamation
73.5
Total acres released to date
31.3
Total new disturbed acres this reporting period
0.0
Total new acreage under reclamation this reporting period
0.0
Total acres under reclamation to date
21.1
Total estimated acres not currently under reclamation
21.3
Total estimated reclaimed acres needing release
42.4
3.0 Monitoring Activities in 2016
Monitoring activities at the Logan Wash Mine during the reporting period consisted of periodic
monitoring of mine water discharge and related sampling activities. These activities included: 1)
discharge measurement of the mine water at LW -001 (former Colorado Discharge Permit System
[CDPS] Outfall 001) and retort water; 2) semi-annual sampling of the mine -water discharge and
retort -water discharge, groundwater at Wells LWCW-IA and LW -22A, and surface water at the
Big Seep sample location; 3) measurement of the manometer installed in the Research Mine
Western Water & Land, Inc. 6