_INSPECTION - C1981019 (34) - Laserfiche WebLink

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Colowyo C-1981-019 18 March 2009 Pg 417 Hydrologic Balance (cont.): - The Gulch A Pond (NPDES 004A) Contained some water but was not discharging at the time of the inspection. There was water flowing into the pond from snowmelt. There are two potential issues that were noted at the Gulch A pond. First, the water in the pond was very muddy (the sediment is not settling out). If this water were to discharge it would be an exceedance of the TSS standard. It is important that when this pond discharges Colowyo take an additional sample for settleable solids (if there is water flowing into the pond or if it is within 48- hours of any inflow). Second, there is a lot of debris floating on the top of the pond. Colowyo needs to keep an eye on this debris to ensure that it does not clog either the weep hole or the principle spillway. The pond embankment is well vegetated and stable at the time of the inspection. There were no erosional problems noted on the pond embankment at the time of the inspection. Goodspring Creek, which runs along the Gulch A Pond, was flowing higher with the snowmelt. - The Section 16 Pond (NPDES 009) was inaccessible and not inspected (and will probably remain inaccessible until late spring). - The Streeter Pond (NPDES 001 A) contained water approximately one foot below the top of the discharge pipe and was discharging from the weep hole. The discharge was clear at the time of the inspection. There was water flowing into the pond from the ditch along the side of the Streeter Fill. The presettling basin of the pond (which was recently cleaned) remains clean. The pond embankment was well vegetated and stable at the time of the inspection. There were no erosional problems noted on the pond embankment at the time of the inspection. The emergency spillway is a riprapped open channel. The spillway is stable. - The Section 28 Pond (NPDES 012A) was not inspected because of the mud and water on the Sturgeon road. - The freshwater pond at the bottom of the Taylor draw contained water. The pond appeared stable at the time of the inspection. This pond is used for water for dust suppression on the haul roads. - Sump 2 contained water approximately one foot below the top and was not discharging at the time of the inspection. The sump was stable at the time of the inspection. - Sump 3 contained water approximately one foot below the top and was not discharging at the time of the inspection. The sump was stable at the time of the inspection. - Sump 4 contained water approximately one foot below the top and was not discharging at the time of the inspection. The sump was stable at the time of the inspection. - Sump 5 contained water to the top of the sump but did not appear to be discharging at the time of the inspection. The sump appeared to be stable at the time of the inspection. The area around the sump was very muddy.