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current seeding effort is unsuccessful, consider re-seeding with fertilizer and protection with excelsior mats. <br />Should burrowing continue, institute rodent control procedures to halt burrowing activity on the dam. <br />Annual Certification <br />The basis for this certification is Rule Number 4, Section 4.05.9 (11) of the Regulations of the Colorado <br />Mined Land Reclamation Board for Coal Mining. References within this certification quote Rule Number <br />4 unless otherwise noted. <br />fat Existing and required monitoring procedures and instrumentation. <br />Inspections of the pond are required quarterly [Section 4.05.6(13)]. The appropriateness of three of the 1994 <br />quarterly inspections is the subject o(a Notice of Violation. This issue is being addressed under separate <br />cover. <br />Stakes were placed to identify the system of cracks on the downstream face of the dam. Monitoring of this <br />crack system has been recommended. <br />Monitoring of revegetation of the downstream face of the dam has been recommended. <br />Monitoring for burrowing by rodents has been recommended. <br />There is no existing or required instrumentation. <br />(h) The design depth and elevation of anv impounded waters at [he time of the initial certification report or <br />the average and maximum depths and elevations of anv impounded waters over the oast year for the annual <br />certification reports. <br />The design depth of the impounded waters was 8 feet (between the base of the dam and the invert of the <br />emergency spillway). The design maximum elevation of impounded waters, the invert elevation of the <br />emergency spillway, was 8224.1 feet (Figure 3, Reclamation Project, As-Built Topography, 11/10/87). The <br />average of depths of impounded waters reported in the four 1994 quarterly reports is 1.2 feet, an elevation <br />near 8216. The maximum observed depth was 3.5 fcet, an elevation near 8218 (approximately two feet below <br />the lowest weep hole in the primary spillway). <br />fcl Existing storage capacity of the dam or embankment. <br />The design capacity of the dam was approximately 9.5 acre-feet to the invert of the emergency spillway (Pond <br />#2 Certification, Revised 04/13/90, Exhibit 1). There appears to have been little sediment that has collected <br />in [he pond. Therefore the existing capacity of the dam is estimated to be near 9.5 acre-Feet. <br />(d) Anv fires occurring in the construction material up to the date of the initial certification or over the past <br />year for the annual certification reports. <br />No fires were reported up to the date of the initial certification, and no indication of fires in the construction <br />materials of the dam was observed during the past year. <br />Canadian Mine Pond # 2, Quarterly Inspection Report and Mnual Certification, 24 October 1994 <br />Page 3 of 4 <br />