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<br />1 <br /> <br />POND 3 <br /> <br />The incised pond west of the reclaimed Pit 3 contained approximately 6 inches of <br />water and numerous cattails were present. The trapezoidal riprapped emergency <br />spillway showed no signs of recent discharge and appeared to be intact and <br />functioning properly. <br />Due to the steep sideslopes, vegetation was limited to mostly native grasses and <br />few low shrubs on the embankment crest. One burrow was observed on the <br />steep south facing slope which had very dry and loose soils. There were no <br />gullies, cracks, slides, or seepages observed on the embankment sideslopes. <br />The sediment level in the pond was not measured during this inspection. For <br />reasons described previously, the sediment level has not changed significantly <br />from that measured in June, 1991, approximately 20 feet below the invert of the <br />spillway. The accumulated sediment present is considered to be negligible <br />compared to the storage capacity of the pond. <br />POND 4 <br />The incised pond west of the reclaimed Pit 4 contained approximately 10 to 12 <br />inches of water, however there was no evidence of recent discharge observed <br />from either the primary outlet riser or the emergency spillway channel. Both <br />structures appeared to be intact and functioning properly. <br />The steep slopes of the topsoil stockpile east of the pond contained very little <br />vegetation but the more gentle sloping east facing sides and crest of the <br />embankment had better developed vegetation including native grasses and (orbs. <br />There were no burrows, gullies, cracks, slides, or seepages observed on the <br />embankment sideslopes. Some erosional downcutting has occurred in the south <br />inlet channel, however the potential for further erosion appears to be limited by the <br />natural rock armoring which has developed. <br />Using a hand level, the relative elevations of the emergency spillway and the crest <br />of the embankment were determined. It was observed that the north end of the <br />embankment may be at a lower elevation than that of the emergency spillway. Fill <br />material has been added to this area of the embankment presumably to correct <br />this problem, however it appears that some additional work may be necessary. <br />The sediment level in the pond was not measured during this inspection. Due to <br />the small amount of precipitation for the area during the summer months and <br />evidence of minimal inflow as observed on a monthly basis, the sediment level has <br />not changed significantly from that measured in June, 1991, approximately 3 feet <br />below the dewatering orifice of the riser. <br />2 <br />