HYDRO29732

• Permit No: C1992081
• IBM Index Class Name: Hydrology
• Doc Date: 5/23/2007
• Doc Name: 1st Quarter 2007 Pond Inspections
• From: Hydro-Environmental Solutions
• To: DRMS
• Permit Index Doc Type: Sediment Pond Inspections
• Media Type: D
• Archive: No

HAYDEN GULCH LOADOUT
Permit No. C-92-081
1st Quarter 2007 Sedimentation Pond Inspection Report
Truck Loop Pond (OOlA)
Date of Inspection: Mazch 16, 2007 Date last Inspected:
Pond: 'frock Loop Pond (001 A) Pond Location:
NPDES ID No.: COG-850008-001A Site Location:
Facility Configuration: Embankment Pond Owner's Rep:
Water Level (above or below principal spillway): Above _
Sediment Level (below dewatering orifice [desibmated sedim ent lever):
Sediment Removal Rcyuired: Yes
Outflow:
December 5, 2006
SEl/4SE7/4See14T6NR88W
2 mi. SE of Hayden, CO
Brian Dunfee
Below _X_ _ 1.0 Pt.
>3.0 Ft.
No X
0.03 cfs
FEATURE PROBLEM COMMENTS
YES NO
LP.OSION
Bills & Gullies on Embankment X
Wave Emsion X
Spillway lirosion X
Buaows' X
Other X
S"1'RUCTURAL _
Differential Settling X
Cracks or Slides X
Seepage X
Other X
S'1'12UCTURES
Principal Spillway X
Clogged Orifice X
Clogged or Damage d Cnlvext X See notes below
Damaged I-Ieadgnte X
Emergency Spillway X
Erosion X
Riprap X
Clogged or Damaged Culvert X
Other X
Maintenance Required: 12-inch \X~aterman headgate not sealed, minor leakage (est. 3 to 5 gpm) into barrel pipe. 'fwo small
holes observed in bottom of barrel pipe due which Icak water into barrel pipe. 'The holes appear to
contribute most of measured dischazge (13 gpm/ 0.03 cfs).
Maintenance Performed : None
Additional Comments: Discharge first observed on March 13, 2007 -due to leakage into barrel pipe from Waterman
headgate and two small holes. Water level in pond on March 13, 2007 about 12-inches blw top of
24-inch CMP riser Sample collected for laboratory analysis on March 16, 2007.
January 2, 2007: pond @ozeq no discharge.
February 1, 2007: pond Frozen, no dischazge.
1`ebnmry 2G, 2007: pond frozen, snow/ice elev. @ 6-inches blw top of 24-inch barrel pipe.
March 13, 2007: pond discharge due to leakage into barrel pipe. No measurements.
March 1 G, 2007: pond discharge due to leakage into barrel pipe. Field measurements and lab sample
colletted Water level @ t2-inches blw top of 24-inch CMP rise[.
March 20, 2007: pond dischargre dne to leakage into barrel pipe (measured 4 gpm). Field pazameters
measured. Water level just at top of 24-inch CMP riser.
March 28, 2007: pond dischazge due to leakage into barrel pipe (measured 4 gpm). Field parameters
measured. Water level @ 2-inches blw top of 24-inch CMP riser.
NAME Oh INSPECTOR: ,,.John C. Weinman
DATE: \/~] (^~/ ~ `May 1Q, 2007