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February 22, 2012 C- 1996- 084 /Lorencito Canyon Mine JHB <br />Culverts are numbered for this inspection as culverts encountered east to west along the access road. <br />Culverts: Culvert 1- (ditch D97 to Ditch D98) Both inlet and outlet are slightly crushed. NECC needs to open <br />both inlet and outlet of this culvert <br />Culvert 2 -(36 inch culvert). This culvert appears to have a minimum of 1 foot of material over the culvert. A <br />portion of the culvert has been pushed down in the center. Flow does not appear impeded currently, but this <br />culvert needs to be opened up to assure adequate flow volume is maintained. Outlet side of this culvert requires <br />clean out of sediment. <br />Culvert 3 -(48" concrete culvert) Outlet end of this culvert is approximately 1/3 full of sediment. Clean out of this <br />material is advised. <br />Culvert 4- (24" dia.) This culvert has been cleaned out. Grading of the road has reduced the cover over this <br />culvert to 1 foot or less. NECC must assure that adequate cover is maintained over the culvert. <br />Culvert 5 Inlet of this culvert is fine. Outlet requires sediment clean out. <br />five culverts under Pond 5 access road are all clear and functional. <br />OTHER (SPECIFY): <br />ROADS — Rule 4.03 Construction 4.03.1(3)/4.03.2(3) Drainage 4.03.1(4)/4.03.2(4) Surfacing and <br />Maintenance4.03.1(5) and (6)/4.03.2(5) and (6) Reclamation 4.03.1(7)/4.03.2(7): <br />The mine access road is also used by landowners as a ranch access road, and as a gas well access road. A third <br />party grades the road. The hole in the road identified in the January 2012 inspection report has been repaired. The <br />access road has been maintained in good condition. NECC needs to assure that traffic remains on the approved <br />access road and does not short-cut across reclaimed areas. <br />REVEGETATION — Rule 4.15 Vegetative Cover; Timing: <br />The vegetation throughout the mine sit remains mostly donnant. Crowns of some of the cool- season grasses are <br />showing some greening up due to moisture from recent precipitation events. Slopes exhibiting very thin <br />vegetation establishment and resulting rilling need to be evaluated for rill repair, surface roughening and repaired <br />area seeding prior to this growing season. NECC is advised to maximize seasonal precipitation patterns. <br />DOCUMENTS RECEIVED None <br />OTHER (SPECIFY) <br />Number of Partial Inspection this Fiscal Year: 5 <br />Number of Complete Inspections this Fiscal Year: 2 <br />Page 4 of 8 <br />