PERMFILE115166

• Permit No: C1981008A
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Doc Name: pages 7-1 to 7-49
• Section_Exhibit Name: NH1 TAB 7 HYDROLOGIC DESCRIPTION
• Media Type: D
• Archive: Yes

• TA8 7
HYDROLOGIC DESCRIPTION
List of Tables
Table No. page
7-1 Summary of the Geologic Units and Hydrologic Character 7-2
7-2 Estimated Cround and Surface Water Use, 1970 Northern
Colorado River Basin 7-5
7-3A Select Surface Water Site Instantaneous Base Flow Values
for Calamity and Tuttle Draws 7-18
7-38 Consumptive Use Rate for Selected Irrigated Crops 7-19
7-4 Evapotranspiration Calculations for the 618 Aere Baseline
Vegetation Study Area within and Adjacent to the Proposed
Nucla East Mine Permit Area 7-20
7-5 Site Specific Aquifer Characteristics for the Nucla and
Proposed Nucla East Mine 7-22
7-6 Summary of Specific Aquifer Characteristics for Nucla
and Proposed Nucla East 7-24
• 7-7 r Q
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7-8 Summary of the Ranges in Concentration for Trace Elements
in the Ground Water at the Nucla and Nucla East Mining Areas 7-34
7-9 Ground Water Monitoring Wells with Water Quality Parameters
Exceeding the Livestock Drinking Water Standards Based on
Data from 1985 to Present 7-36
7-10 Ground Water puality Statistics Report for GW-N4 7-37
7-11 Ground Water Ouali ty Statistics Report for GW-N4R 7-38
7-12 Cround Water Quality Statistics Report for GW-N1 7-41
7-13 Ground Water Oual ity Statistics Report for GW-N3 7-42
7-14 Ground Water Quality Statistics Report for CW-NS 7-43
7-15 Cround Water Oualfty Statistics Report for CW-N6 7-44
7-16 Cround Water Quality Statistics Report for GW-N22 7-51
7-17 Ground Water Oual ity Statistics Report for GW-N15 7-54
7-18 Ground Water Quality Statistics Report for GW-N18 7-55
7-19 Ground Water Quality Statistics Report for GW-N18P1 7-56
7-20 Ground Water puality Statistics Report for GW-N21 7-57
• 7-21 Cround Water puality Statistics Report for GW-N 14 7-62
iii Revised 04/11/88