PERMFILE121739

• Permit No: C1980005A
• IBM Index Class Name: Permit File
• Doc Date: 9/12/2006
• Section_Exhibit Name: Tab 7 Hydrology
• Media Type: D
• Archive: Yes

HYDROLOGY
TAB 7
LIST OF FIGURES
(Continued)
Page
Flaure No.
7-6 Seasonal Runoff Pattern for the Yampa River
Near Steamboat Springs, Colorado. 1954 Water
Year 7-55
7-7 Seasonal Runoff Pattern Eor the Yampa River
East of Hayden, Colorado. 1979 Water Year 7-65
. 7-8 Watec Year 1980 Flow vs. Date for NPDES 10021 7-75
7-9 Water Year 1980 Flow vs. Date for NPDES (0031 7-79
7-10 Alkalinity as CaCO3 vs. Oate NPDES (002) 7-B4
7-11 Acldlty as CaCO3 vs. Date NPDES (002) 7-84
7-12 Alkalinity as CaCO3 vs. Date NPDES (003) 7-SS
7-13 Acidity as CaCC
vs. Date NPDES (D031 7-BS
3
7-14 Chlorides vs. Date NPDES 10021 7-56
7-15 Total Iron vs. Date NPDES 10021 7-86
7-16 Chloride vs. Date NPDES 10031 7-97
7-17 Total Iron vs. Date NPDES 10031 7-87
7-15 Manganese vt. Date NPDES 10021 7-87
7-19 pH at 25° vs. Date NPDES 1002) 7-SS
7-20 Manganese vs. Date NPDES 10031 7-SS
7-21 pH a[ 25° C. vs. Date NPDES (003) 7-89
7-22 Water Year 1980 Total Suspended Solids vs.
Date for NPDES 1002) 7-d9
7-23 Water Year 1980 Total Suspended Solids vs.
Date for NPDES 1003) 7-91
7-24 Water Year 1980 Calcium vs. Date for NPDES 10021 7-92
7-25 Water Year 1980 Calcium vs. Oate £or NPDES (003) 7-93
2-26 SCii HlTdtiv Jf ITIJ({rd,ItZRdCi~](f ci [!RK uLT~Pi GCdd1ERt
from Point Pollution Source with Gaussian
Cor.cent:arion Distrrbutions Across Plume 7-130
7-27 Historic Flow vs. Date for NPDES 002 ~ 7-176
7-28 Historic Flow vs. Date for NPDES 003 7-177
7-29 Historic Elow vs. Date for NPDES 004 7-178
7-30 Location Map for Twenty Mlle Coal Company's
Monitoring Sites 26 and 27 on Fish Creek 7-193
7-31 Hyd rograph for Slte NPDES 004 Based on Flow
vs. Acres Mined 7-206
7-32 TDS vs. Sulfate foc NPDES 002, 003, 004 7-210
7-33 TDS vs. Date and TDS vs. Elow for NPDES 002 7-211
7-34 TDS vs. Date and TDS vs. Flow for NPDES 003 7-212
111 Revised 02/05/97