2016-01-07_PERMIT FILE - C2010089A ‎(11)‎

• Permit No: C2010089A
• IBM Index Class Name: PERMIT FILE
• Doc Date: 1/7/2016
• Doc Name: Protection of Hydrologic Balance
• Section_Exhibit Name: Section 2.05.6‎(3)‎
• Media Type: D
• Archive: Yes

TABLE OF CONTENTS
SECTION 2.05.6(3)
PROTECTION OF THE HYDROLOGIC BALANCE
(A) Protection of the Hydrologic Balance..............................................................................1
Introduction..........................................................................................................................
l
GroundWater Protection.....................................................................................................1
GroundWater Quality..........................................................................................................1
GroundWater Quantity........................................................................................................3
GroundWater Monitoring...................................................................................................4
Surface Water Protection.....................................................................................................5
SurfaceWater Quality..........................................................................................................5
SurfaceWater Quantity........................................................................................................6
SurfaceWater Monitoring...................................................................................................7
Water Rights and Alternative Water Supplies.....................................................................7
Water Rights Protection and Mitigation Plan......................................................................8
AlternativeWater Supplies..................................................................................................9
Irrigation............................................................................................................................10
Sub-irrigation.....................................................................................................................10
Conclusion.........................................................................................................................11
HydrologyMonitoring Plan...............................................................................................1
l
(B) Probable Hydrologic Consequences...............................................................................11
1) Interruption of Groundwater Flow and Drawdown...............................................12
Observation and Analysis......................................................................................12
Modeling................................................................................................................13
2) Impact on Groundwater Rights..............................................................................14
3) Impact of Spoil Material on Groundwater Flow and Recharge .............................16
4) Containment of Pit Inflow and Impacts on Water Quality....................................20
5) Potential Impacts of Replaced Spoil on Groundwater Quality..............................20
SpoilWater Chemistry...........................................................................................21
Spoil Water Infiltration into Low-wall..................................................................25
6) Impact of Backfill Water Quality on Surface Water Quality................................26
SpoilWater Quality...............................................................................................26
Timeframes of Elevated TDS in Spoil Water........................................................26
Impacts to Receiving Waters - Tuttle Draw..........................................................27
Impacts to Receiving Waters - Meehan Draw.......................................................29
7) Effects of Mining on the Local Geomorphology...................................................31
8) Effects of Sediment Ponds on Channel Characteristics and Downstream Users ...
32
9) Effects of Sediment Pond Discharge On Surface Water Quality ..........................32
10) Effects of Runoff From Reclaimed Areas On The Quality Of Streamflow ..........32
Summary................................................................................................................32
Section 2.05.6(3) Sept. 2015 (TR -11)