2007-11-23_HYDROLOGY - M1977300 ‎(9)‎

• Permit No: M1977300
• IBM Index Class Name: HYDROLOGY
• Doc Date: 11/23/2007
• Doc Name: Hydro Eval- Vol. II- Ap. G- Sump Shut-Down Data
• From: Cotter and Whetsone
• To: DRMS
• Permit Index Doc Type: Hydrology Report
• Email Name: DB2
• Media Type: D
• Archive: No

Appendix G - Sump Shutdown Test Methods and Results i
•
TABLE OF CONTENTS
1. INTRODUCTION .................................................................................................................................... 1
2. SUMP PUMPING RATES ....................................................................................................................... 1
3. SUMP SHUT-DOWN TESTS .................................................................................................................. 5
3.1 September 1998 Sump Shut-down Test ................................................................................ 5
3.2 Mar/April 1999 Sump Shut-down Test ................................................................................. 6
LIST OF TABLES
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Table 1. Sump Pumping Rates ....................................................................................................................... 2
Table 2. Water Quality Survey of Ralston Creek During September 1998 Sump Shut-Down .......... :........... 5
Table 3. Calculation of Mixing Water Quality in Ralston Creek ................................................................... 8
Table 4. Water Quality Survey of Ralston Creek During March/April 1999 Sump Shut-Down ................. 13
LIST OF FIGURES
Figure 1. Sump Pumping Rates, 1995 - 2002
Figure 2. Monthly Average Sump Pumping Rates vs. Long-term Average Precipitation
Figure 3. Monthly Average Sump Pumping Rates vs. Long-term Average Flow Rates in Ralston Creek
Figure 4. Monthly Average Sump Pumping Rates vs. Long-term Average Flow Rates in Ralston Creek
Figure 5. Uranium and Conductivity in Ralston Creek at End of 1998 Sump Shut-Down Test
Figure 6. pH Changes Over Time Ralston Creek During 1999 Sump Shut-Down Test
Figure 7. pH Changes with Location in Ralston Creek During 1999 Sump Shut-Down Test
Figure 8. Conductivity Changes Over Time in Ralston Creek During 1999 Sump Shut-Down Test
Figure 9. Conductivity Changes Over Time at D001 Discharge Point During 1999 Sump Shut-Down Test
Figure 10. Conductivity Changes With Location in Ralston Creek During 1999 Sump Shut-Down Test
Figure 11. Uranium Concentrations Over Time in Ralston Creek During 1999 Sump Shut-Down Test
Figure 12. Uranium Concentrations With Location in Ralston Creek During 1999 Sump Shut-Down Test
4109B.071109 Whetstone Associates