2012-08-01_HYDROLOGY - C1980007 - Laserfiche WebLink

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Erosion: Yes No Yes No Yes No Rills & Gullies J J J Vegetation V V J Other a Drainage: Yes No Yes No Yes No .� 0 . t". = a P Ditches & Channels J J V • 4 ;. S PE . t Berms J J J � re,; ' ;, t;l Linings J J V ...j t i• Temporary Structures J J V ` ; ! f i { ` � Culverts J J J A ., ti .1 Other ho Ili ......... .: ��` FES51O��.. Structural: Yes No Yes No Yes No ��'� Sideslopes & Stability J J V Cracks or settling J J J Repairs of tension cracks in the berms and constructed slopes were completed. Compaction J J J Seepage J J V A drain was installed in a seep on the east end of the RPE toe and the area was regraded. Seeding will be done Fall 2012. Underdrains V V V Monitoring - Survey J J J Monitoring - Visual J J V Other Reclamation: Yes No Yes No Yes No Seedbed Material J J V Subsoil J J J Vegetation - Ni J J The fill slopes of the RPEE haul road and repaired slide areas were seeded and covered with mulch mats or straw. Mulch J J J Other General Compliance & Miscellaneous: Yes No Yes No Yes No Signs & Markers J J V Spontaneous Combustion J V J Roads Al Al J Other J J J Additional Comments: Compaction test results for the RPE and RPEE are attached. Date: 4/19 & 6/18/12 Features MOUNTAIN COAL COMPANY, LLC WEST ELK MINE Quarterly Stockpile and /or Site Inspection Report Somerset, Gunnison County, Colorado Quarter: 2Q 2012 Location: Refuse Pile Expansion (RPE) & RPE East (RPEE) Inspector: K. Welt/ R. Schiro Problem? Maintenance? Repairs? Comment Page 6 of 12