_INSPECTION - C1982056 ‎(57)‎

• Permit No: C1982056
• IBM Index Class Name: INSPECTION
• Doc Name: Inspection Report
• Inspection Date: 7/15/2008
• Email Name: JHB
• Media Type: D
• Archive: No

Slope angles were measured at 14.5°, 18.30, 17.00, 160.8, 17.2°, and 14.00. The slope measurements did
not exceed the approved design.
Support Facilities: The stoker loading chute at the Stoker loading area was throwing off an unusual
amount of dust while loading trucks. Mr. Watterson alerted the appropriate personnel to investigate why
this loading operation was dusty. The Stoker material is normally loaded slightly wet and should not be
dusty. TCC has submitted a revision to the Division to modify the Stoker truck loading area.
Hydrologic Balance: Ponds throughout the mine site were holding water, though few of the ponds were
discharging. Pond E was discharging, TCC has scheduled work of the V-notch weir at Pond E.
TCC is working with the CDPH&E to permit pond 6MN with an outfall point. This change to the pond
configuration will also need to be permitted with DRMS. TCC needs to continue to clean up and
monitor this spill. There was no sign that Hydraulic oil escaped the 6MN pond.
Most of the ditches through out the mine site were in good condition. TCC has been working on
maintenance of ditches in the mine area. Haul road C ditch has been cleaned out and flow through the
culvert to Pond E is unimpeded. The culvert inlet has sustained damage during cleaning operations but
the ripping of the culvert inlet has not compromised the culvert function. Collection ditch east of the
zero entry shaft still requires clean out. The repair work along the Refuse Pile West ditch has been
graded. Seeding of the repair area and temporary water diversion area is still necessary. Most of the
ditches were dry. TCC has been conducting maintenance throughout the mine site. Sediment cleaning
of the sediment traps along the haul roads has progressed. Pond B area has been graded and additional
road material laid down on the ramp to the pond area. TCC has cleaned and added rock to the sediment
trap on the north side of the pad. However, this trap is very small and needs additional rock to provide
added volume. No clogged culverts were found.
The NW B-O-B ditch continues to require to be cleaned out. Coal has been pushed into this ditch but all
material will drain to Pond B. Visual markers may assist the dozer operator in seeing the limits of the
pile.
TCC has graded the area south of the Wash Plant II. The ditch south of the wash plant has been mostly
re-established. A stubbed off black HPVC line stops in the middle of the ditch. Discussion with the
operator left it unclear as to the designation of this line. 2 culverts were in place under the western
access ramp to the area by the thickener tank. These 2 culverts drain the low area south of Wash Plant II
as well as handle the ditch drainage to Pond D.
Coal material had previously been pushed outside of the berm at the Train Load Out. The material has
been pulled back to within the drainage control area. The ditch needs to be re-established.
TCC is in the process of installing piping and valves to the 6MN million Gallon Tank. The ditch is still
open and the piping continues to be installed. Grading of the finished buried line continues and seeding
will follow during the appropriate seeding window.
Surface water sampling site were located. Site 16A was damaged in the Spring runoff. TCC has
scheduled repairs and has re-rated the channel and is collecting SW flow data using the re-rated data.
Channel re-rating is being conducted throughout the permit.
Signs Permit boundary markers need to be placed on the eastern boundary along RCR#33.
4 of 6 WHITE-File YELLOW-Operator PINK-Specialist