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Colowyo C-1981-019 <br />27 September 2007 <br />Pg 4/7 <br />Hydrologic Balance (cont.): -Sump 1 was full at the time of the inspection but was <br />not discharging. The sump was stable at the time of the inspection. This sump was <br />cleaned prior to the recent storm event. <br />-Sump 2 contained water approximately one foot below the top of the sump at the <br />time of the inspection but was not discharging. The sump was stable at the time of <br />the inspection. This sump was cleaned prior to the recent storm event. <br />-Sump 3 contained water approximately two feet below the top of the sump at the <br />time of the inspection but was not discharging. The sump was stable at the time of <br />the inspection. This sump was cleaned prior to the recent storm event. <br />-Sump 4 contained water approximately one foot below the top of the sump and <br />was not discharging at the time of the inspection. The sump was stable at the time of <br />the inspection. This sump was cleaned prior to the recent storm event. <br />- Sump 5 contained water to the top of the sump but was not discharging at the time <br />of the inspection. The sump appeared to be stable at the time of the inspection. This <br />sump was cleaned prior to the recent storm event. <br />-The operator had a contractor (Anson) on site construction the West Taylor Pond. <br />Anson is construction the embankment. The West Taylor Pond has been completed <br />with the exception of the trash rack on the discharge pipe and the flume to measure <br />discharge. The two short sections of railing on the walkway out to the discharge pipe <br />have been installed. The pond contained water approximately four feet below the <br />top of the discharge pipe and was not discharging at the time of the inspection. The <br />pond embankment appeared to be stable and no erosional problems were noted. <br />Colowyo will seed the pond embankments, the topsoil stockpile for the pond and the <br />borrow area this fall. <br />- Colowyo has stripped the topsoil for the Section 28 Pond and has started <br />constructing the embankment. The topsoil has been stockpiled just below where the <br />pond embankment will be located. The Division believes that an alternate topsoil <br />stockpile location would be better because of the current stockpile's proximity to the <br />pond embankment. Colowyo decided to add the Geotextile and gravel underdrain <br />to this pond as well. During the inspection approximately 1 /3 of the gravel layer was <br />exposed. It was too windy to lay the Geotextile over the gravel at the time. The <br />operator was working on the beginning lifts of the remaining 2/3 of the embankment. <br />Anson, who is also building this pond as well, needs to get the remaining Geotextile <br />on the gravel filter and begin working on the remaining 1 /3 of the embankment and <br />tie it in to the 2/3 that they are working on to ensure that the lower portion of the <br />embankment is stable. Construction of the Section 28 Pond is with a Komatsu <br />PC400LC excavator, a Komatsu 350 articulated truck, a CAT D7H dozer and a CAT <br />CP-433E compactor. Anson is using two operators for the job. One operator is <br />running the excavator and loading the truck. The other driver is driving the truck. <br />Once the truck is loaded, it travels to the embankment and dumps the dirt. After two <br />or three truck loads, the operators get out of the excavator and truck and get into <br />the dozer and compactor. The dozer is spreading the material in approximately six- <br />inch lifts and it is being compacted. The contractor appears to be getting good <br />compaction as the articulated truck is not sinking in when it drives on the <br />embankment to dump its dirt. <br />