_INSPECTION - C1981019 (34) - Laserfiche WebLink

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Colowyo C-1981-019 18 March 2009 Pg 3/7 e:05:7 Hydrologic Balance (cont.): - The Work Area Pond (NPDES 002A) contained water approximately one foot below the top of the discharge pipe (just below the weep hole) and was not discharging at the time of the inspection. There was water from snowmelt flowing into the pond so it will probably discharge very soon. The pond embankment was well vegetated and appeared to be stable at the time of the inspection. No erosional problems were noted on the embankment at the time of the inspection. The emergency spillway is a riprapped open channel. The spillway appeared to be stable. - The Gossard Pond (NPDES 003A) contained water approximately three feet below the discharge pipe and was not discharging at the time of the inspection. The pond embankment was well vegetated and stable. No erosional problems were noted on the embankment. The cement presump at the inlet of the pond was full of water. The emergency spillway is a 12" culvert. - The West Pit Pond (NPDES 008A) contained water approximately two feet below the gated valve on the discharge pipe and six feet below the top of the pipe and was not discharging at the time of the inspection. There was some water in the presettling pond but it was not discharging into the main pond. The pond embankment was well vegetated and appeared to be stable at the time of the inspection. No erosional problems were noted on the embankment at the time of the inspection. The emergency spillway is a riprapped open channel. The spillway appeared to be stable. - The Rail Loop Pond (NPDES 006A) contained water approximately two feet below the gated discharge valve and was not discharging at the time of the inspection. The pond embankment was well vegetated and appeared to be stable at the time of the inspection. No erosional problems were noted on the embankment at the time of the inspection. - The Stoker Siding Pond (NPDES 005A) contained water approximately three feet below the top of the discharge pipe and was discharging an immeasurable trickle through the weep hole. The pond embankment was very muddy and was well vegetated and appeared to be stable at the time of the inspection. No erosional problems were noted on the embankment at the time of the inspection. - The East Taylor Pond (NPDES 01 OA) contained a small amount of water (approximately six inches below the weep hole and six feet below the top of the discharge pipe) at the time of the inspection and was not discharging. The pond embankment was well vegetated and appeared to be stable at the time of the inspection. No erosional problems noted on the embankment at the time of the inspection. Some dirt was placed in the emergency spillway and some riprap has been removed. This was done to get equipment into the area. The emergency spillway needs to be fixed to design immediately. - The Prospect Pond (NPDES 007A) contained water and was discharging through the weep hole at the time of the inspection. The discharge was clear. There was water flowing into the pond from snowmelt. The pond embankment was well vegetated and stable at the time of the inspection. There were no erosional problems noted on the pond embankment. The riprap replaced at the inlet of the pond appears to remain stable.