HYDRO23400 - Laserfiche WebLink

Home Browse Search

KENNECOTT ENERGY COMPANY COLOWYO COAL COMPANY L.P. ANNUAL IMPOUNDMENT INSPECTION NPDES PONDS AND OTHER HOLDING PONDS March 28, 2002 srh Im oundment Name Erosion, Instability, Structural Weakness 4,05.9 15 a Monitoring procedures and Instrumentation 4.05.9 15 b Depth of Impounded Waters 4.05.9 15 c Elevation of Impounded Waters 4.05.9 15 c Existing Storage Capacdy 4.05.9 15 d Other Slructurel Instability or Maintenance Required 4.05.9 15 e Streeter Pond - 001A None (1rtly, Annual Insp. 5.0 ft. 6563 2.2 aaft. None Work Area Sediment Pond - 002A None Qrtly, Annual Insp. 6.5 ft. 7752.5 8.3 ac-ft. None Gossard Pond - 003A None (1rtly, Annual Insp. 3.8 ft. 6366.5 1.8 ac-ft. None Gulch APond -1104A None Qrtly, Annual Insp. 8.5 ft. 6613.5 4.6 ac-fl. None Stoker Siding Pond - 005A None Ortly, Annual Insp. 3.2 ft. 6325 0.7 ac-ft None Loop Pond - OO6A None Qrtly, Annual Insp. 3.5 ft. 6347,5 1.1 ac-ft. None Prospect Pond - 007A None Qrtly, Annual Insp. Dry Dry 1.5 ac-ft. None West Pd Pond - IX18A None Ortly, Annual Insp. 6.0 ft. 6827 4.5 ac-ft. None Section 16 Pond - 009A None Qrtly, Annual Insp. 4.5 ft. 7744.5 1.2 ac-ft. None East Taylor Pond-010A None Qrtly, Annual Insp. 6.0 ft. 6936 2.5 ac-ft. None Taylor Pump Holding Pond None Annual Insp. 6.0 ft. 6555 3.6 ac-ft. (e} None Evaporation Pond North None Annual Insp. 3.0 R. 7202 5.1 ac-ft.(e) None EvaporetionPondSouth None Annuallnsp. 3.0 ft. 7202 4.2 ac-R.(e) None Aeration Pond None Annual Insp. 4.0 R. 7207 4.5 ac-R.(e) None Sediiment Sump None Annual Insp. 8.5 ft. 7238.5 1.07 ac-ft.(e) None Washbay Pond -0026 None Annual Insp. 6.5 ft. 7202.5 15.76 ac-ft.(e) None o~ta~ t t ° RE 0 ."'" "~%. . I, Stephen R. Hinkemeyer, being a Registered Professional Engineer in the State of Colorado, do hereby certify that the information displayed in this table has been reviewed by me and is true and correct to the best of my knowledge and information. Note: (e) impoundment volumes are estimated from pre-ebsting as-built surveys.