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Colowyo C-1981-019 1 August 2007 Pg 4/7 ~~~ Hydrologic Balance (cont.): -Sump 1 was dry at the time of the inspection; the bottom of the sump was only muddy. The sump was stable at the time of the inspection. - Sump 2 was full at the time of the inspection but was not discharging. The sump was stable at the time of the inspection. -Sump 3 was dry at the time of the inspection. The sump was stable at the time of the inspection. -Sump 4 contained only a very small amount of water approximately and was not discharging at the time of the inspection. The sump was stable at the time of the inspection. - Sump 5 contained water approximately six inches below the top and was not discharging at the time of the inspection. The sump appeared to be. - The operator had a contractor (Anson) on site construction the West Taylor Pond. Anson is construction the embankment. They are using material from a borrow area approximately 200 feet above the inlet to the pond. There are two approximately 10- Ton highway-legal rear dump trucks, a small excavator and a CAT CP433E compactor working on the pond. Currently, the embankment is almost complete. There is approximately eight vertical feet remaining on the embankment, based on the survey stakes at the sides of the embankment. Anson has asingle-lane road down to the embankment. The excavator is loading both trucks then they are traveling to the embankment, dumping and returning together for another load. Once the dump trucks leave, the compactor is spreading and compacting the dirt. The embankment is being constructed in very small lifts (less than four inchesj. Once the two loads of dirt have been spread, the compactor continues to drive across the embankment compacting the dirt. The embankment appears to be well compacted as evidenced by the loaded dump trucks as they drive on the embankment. There is less than one inch of fire penetration on the new lift of the embankment as the full dump trucks drive on it to dump their loads. Top Peterson (a Colowyo consultant and PE) stated that all of the proctor tests have shown compaction of well over 90%. Although the material is compacting well, laboratory tests indicated that it was just below the acceptable level of plasticity for the embankment. Since no other material of higher plasticity was readily available, Colowyo modified the design slightly to add afabric-wrapped gravel drain at the toe of the pond embankment. The drain extends approximately 1 /3 of the way under the embankment to decrease the possibility of water piping in the embankment and causing instability and possibly failure. The primary discharge pipe is in place in the embankment and has been cut to the proper elevation and the weep-holes have been drilled at the permanent pool elevation. The emergency spillway will be a riprapped open channel. The embankment had not yet reached the correct elevation for the spillway. Finally, upon pond completion, Colowyo will armor the outfall and install a weir for measuring discharge. Colowyo will submit a construction report and an as-built upon completion. Based on the inspection, it appears as though the pond is being constructed in accordance with the designs and good construction practices.