PERMFILE47866

• Permit No: M1980244
• IBM Index Class Name: Permit File
• Doc Date: 9/3/2002
• Doc Name: Certifcation Report Phase IVa
• From: Cripple Creek & Victor Gold
• To: DMG
• Media Type: D
• Archive: No

used. The moisture content of the fill materials, prior to and during compaction, shall
• be uniform throughout each layer of the material.
Prior to mixing of wet and dry material on the fill to obtain the proper moisture content,
approval shall be obtained from CERTIFYING ENGINEER Mixed material shall
have a uniform distribution of the moisture content prior to placement on the subsequent
lift.
When materials spread on the fill are too dry for proper compaction, CONTRACTOR
shall spray water on each layer of the fill and shall work the moisture into the fill by
harrowing or other approved means, until a uniform distribution of moisture is obtained.
Material that is too wet for proper compaction, as determined by CERTIFYING
ENGINEER, shall be removed from the fill and/or spread out and permitted to dry,
assisted by discing and harrowing or mixing in dry material when permitted by
CERTIFYING ENGINEER, if necessary, until the moisture content is reduced to an
amount suitable for obtaining the specified degree of compaction, at no cost to CC& V.
9. After each layer of fill material has been placed, spread, and moisture-conditioned, the
layer shall be compacted by passing compaction equipment over the entire surface of
the layer a sufficient number of times to obtain the required density, as specified herein.
Compaction shall be accomplished with equipment and by methods approved by
CERTIFYING ENGINEER. If such equipment or methods are found unsatisfactory
for the intended use, CONTRACTOR shall replace the unsatisfactory equipment with
other types or adjust methods until proper compaction is achieved.
Prior to placement of a subsequent lift, the previous lift shall be thoroughly scarified to
a nominal depth of 2-inches to provide good bonding between lifts. Scarification shall
be accomplished by discing, inking with a grader, or an alternative method approved by
• CERTIFYING ENGINEER.
10. The CQA Monitor will measure the ambient air temperature on an hourly basis. If the
ambient air temperature is less than thirty-two degees Fahrenheit for more than one
hour (1) over [he preceding twenty-four (24) hours, the CQA Monitor will measure the
temperature of the fill to determine if the fill is frozen. "Frozen" is defined as a mean
temperature of thirty-two degrees Fahrenheit (320F) or less. The CQA Monitor will
measure the temperature at a depth of three (3) inches and six (6) inches, recording the
lowest of the two. Six (6) measurements will be taken per acre, and if the average is
below thirty-two degrees Fahrenheit (32OF), the fill will be considered frozen. If the
fill is determined to be frozen the CONTRACTOR may either remove and replace the
frozen fill or wait until subsequent temperature monitoring indicates the fill is unfrozen,
at no cost to CC& V.
11. Ore sideslope and end berth fill shall be compacted using a method specification.
Previously leached ore material shall be regraded to meet the grades and dimensions
shown on the DRAWINGS. The Bedding Fill subgrade surface will be prepazed as
identified in Section 2200 of the SPECIFICATIONS.
B. Structural Fill
1. Areas to receive Stmctural Fill will include, but are not limited to, slope reductions, and
miscellaneous site grading.
2. CONTRACTOR shall condition Stmctural Fill to a moisture content that allows
compaction to the required density and [hat results in a firth, unyielding surface capable
• of allowing the movement of vehicles and equipment over the surface without causing
rutting or other deleterious effects.
Section 02200 Page 8 of 17 March 22, 2000
Earthworks Golder Associates Revision 7
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