1986-12-31_REPORT - C1981008 ‎(3)‎

• Permit No: C1981008
• IBM Index Class Name: Report
• Doc Date: 12/31/1986
• Doc Name: 1986 Annual Hydrology Report ‎(Part 1 of 8)‎
• Annual Report Year: 1986
• Permit Index Doc Type: Hydrology Report
• Media Type: D
• Archive: No

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_ NUCLA MINE
4 MONTROSE COUNTY, COLORADO
1986 ANNUAL HYDROLOGY REPORT
TABLE OF CONTENTS
Page
I . INTRODUCTION 1
II. PRECIPITATION DATA 3
III. SURFACE WATER 5
A. Operational Surface Water Monitoring Program 5
B. Tuttle Draw - Flow and Quality 16
1. Site SW-N1 16
2. Sites NPDES 002 and 003 20
3. Sites NPDES 004 and 005 22 -
4. Site SW-N3 22
C. West Return Ditch - Flow and Quality 41
1. Site SW-N7 41
2. Site SW-N6 44
3. Site NPDES 001 44
4. Site SW-N2 58
5. Springs 58
D. East Return Irrigation Ditch 62
1. Site NPDES 006 62
2. Site SW-N4 66
IV. GROUND WATER 67 (Revised
03/06/87)
A. Operational Ground Water Monitoring Program 67
B. Water Levels 73
1. Wells GW-N1 and GW-N1P1 - Underburden 73
2. Well GW-N3 - Underburden 74
3. Well GW-N4 - Dakota Coal 74
4. Well GW-N5 - Underburden 74
5. Well GW-N6 - Underburden 75
6. Well GW-N8 - Overburden and Dakota Coal 75
i Revised 03/06/87