ENFORCE25494

• Permit No: C1982057
• IBM Index Class Name: Enforcement
• Doc Date: 5/5/1995
• Doc Name: SENECA II-W PN C-82-057 TDN X95-020179-002
• From: SENECA COAL CO
• To: DMG
• Violation No.: TD1995020179002TV3
• Media Type: D
• Archive: No

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S Coal Company Seneca Coal Com
May 4, 1995 RECEIVED
Mr. Wallace Erickson MAY 0 5 1gg5
Division of Minerals and Geology
1313 Sherman Street, Room 215 DlvisionotMmerals&Geology
Denver, CO 80203-2273
RE: Seneca II-W, Permit C-82-057, TDN X95-020179-002
Dear Mr. Erickson:
This correspondence is in response to the Ten-Day Notice (TDN) the
Division was issued with regard to the oversight inspection on
March 28-31, at the Seneca II-W mine. There were three separate
violations contained within the TDN.
Violation #1 was for failure to design and certify the impoundment
which was constructed at the outlet of Haulroad Ditch A5. This
structure was built at the Division's request to help with
controlling runoff and sediment from road construction and the road
surface itself. It was by no means meant to be a sedimentation pond
which would have required a design and certification. Seneca has
breached the dam at this impoundment since the March inspection.
Two rows of straw bale barriers in combination with silt fence have
been installed in the drainage below the outlet of HRD-A5. Seneca
believes that these alternate sediment control measures will
provide the same control that the sump did.
Violation #2 addresses the area below the outlet of culvert A-3. A
series of sumps and silt fences were installed to prevent
additional sediment to the stream flow or to be deposited outside
the permit boundary. OSM stated that at least one of these
structures was constructed outside the boundaries of the permit. A
review of Exhibits 13-2, Surface Hydrology Map, and 13-13.2 Road A
(AS-BUilt), showed the permit boundary to be approximately 200 feet
from the centerline of the haul road. The permit boundary was
surveyed from a 1" = 400' scale map. At the time of the survey a
coordinate bust had occurred and some new surveys were made. The
fence line that exists in the field now is what the surveyors
staked as the permit boundary, and where the signs are placed. The
date on Exhibit 13-13.2 is 10-10-90 which was after the
construction of the fence line. The fence line and last row of
straw bale barriers and silt fence was surveyed and plotted to
check the location of the fence line/permit boundary. The fence
posts surveyed were right on with what is depicted on Exhibit 13-
13.2. We then taped from the centerline of the haul road out to a
distance of 200 feet. The fence line/permit boundary was
approximately 27 feet further to the south. This means the
information contained on Exhibit 13-13.2 is in fact correct.
ny
Seneca Coal Company • P.O. Drawer D • Hayden, Colorado 81639
Telephone [phone] • FAX [phone]