GENERAL33770

• Permit No: C1980004
• IBM Index Class Name: General Documents
• Doc Date: 12/7/1981
• Doc Name: DRAFT PROPOSED DECISION AND FINDINGS OF COMPLIANCE
• Permit Index Doc Type: FINDINGS
• Media Type: D
• Archive: No

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STIPULATION (12 (cont'd)
3) THE WATER SAMPLES MUST BE CHEMICALLY ANALYZED FOR THE PARAMETERS
SPECIFIED BELOW:
pH
Sodium Absorption
Rd ti O
Sodium(Na+)
Sulfate(504)
Aluminum(A1)
Arsenic(As)
Boron (B)
Cadmium(Cd)
Copper(Cu)
Iron (Fe)
Lead(Pb)
Specific Conductance
Temperature (field)
Dissolved Oxygen(field)
Total Suspended Solids
Total Dissolved Solids
Total Combustible Solids
Total Hardness
Bicarbonate(HC03)
Calcium (Ca+2)
Magnesium(Mg+2)
Manganese(Mn)
Mercury(Hg)
Molybdenum(Mo)
Selenium(Se)
Zinc (Zn)
4) THE RESULTS OF ALL MONITORING MUST BE SUBMITTED TO THE DIVISION
IMMEDIATELY AFTER DATA COLLECTION.
The only aspects of the operation which could potentially impact the surface
water in adjacent areas are the face up, mine bench and roads. A sedimentation
system approved by the Division in compliance with the regulations will route
undisturbed flow around the disturbance and will conduct all flow from the
disturbed area through a properly sized sedimentation pond. The water contained
in the sedimentation pond will be released into the natural drainage only
after it is determined that the discharged water will meet all applicable
effluent standards.
The pond design for the McClane Canyon mine is adequate with respect to
size and location. However, no provisions have been made for dewatering
the pond at the maximum sediment level. Salt Creek Mining Company has
agreed to install a dewatering device in the pond. This dewatering device
will ensure that the pond will at all times be capable of containing the
10 year-24 hour runoff event.
Some ditches represented in the mine plan indicated high potentially erosiv~a,
velocities when carrying the flow from the 10 year-24 hour event. These
ditches are, for the most part, natural drainages that existed prior to mini:
development. The material in the ditches consists of large rocks and bedrock.
These ditches are therefore considered to be non-erosive and stable.
Hydrologic Balance:
2.05.6(3), and 4.05
2.04.5, 2.04.7, 2.05.3
Information provided by the applicant with respect to ground water in the
permit area can be found in Sections 4.2.2 through 4.2.5 in Volume I of the
application. Based on an analysis of these data the following determinatials
have been made by the Division.
DriZZing in the area indicates the presence of a saturated zone within the
mined interval. This saturated zone occurs outside of the permit area and
will not be encountered by projected mine workings during this permit term.