2009-12-21_REVISION - M1980244 ‎(30)‎

• Permit No: M1980244
• IBM Index Class Name: REVISION
• Doc Date: 12/21/2009
• Doc Name: QA Liner Recert- App. E, Technical Specifications
• From: CC&V
• To: DRMS
• Type & Sequence: AM9
• Media Type: D
• Archive: No

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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 disking, raking 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 degrees Fahrenheit for more than one hour (1)
over the 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 (32 °F) or less. The CQA Monitor will measure the
temperature at a depth of three (3) inches and six (6) inches, recording the lower of the two.
Six (6) measurements will be taken per acre, and if the average is below thirty-two degrees
Fahrenheit (32 °F), 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. Overburden slopes shall be compacted using a method specification and graded to meet the
grades and dimensions shown on the DRAWINGS. The Bedding Fill subgrade surface will
be prepared as identified in Section 2200 of the SPECIFICATIONS.
B. Structural Fill
1. Areas to receive Structural Fill will include, but are not limited to, slope reductions, and
miscellaneous site grading.
2. CONTRACTOR shall condition Structural Fill to a moisture content that allows
compaction to the required density and that results in a firm, unyielding surface capable of
allowing the movement of vehicles and equipment over the surface without causing rutting
or other deleterious effects.
3. CONTRACTOR shall place Structural Fill materials with less than 30 percent rock
materials above 3/4 -inch size in maximum 12 -inch loose lifts, and compact to 95 percent of
maximum dry density (ASTM D698).
4. CONTRACTOR shall condition, place and compact Structural Fill containing more than
30 percent rock materials above 3/4 -inch size(rock fill) by a method compaction technique.
The compaction equipment shall consist of a minimum 10 -ton (static drum weight) vibratory
smooth-drum compactor. The number of passes and loose lift thickness shall be subject to
CERTIFYING ENGINEER's approval, at no additional cost to CC &V. The method
SPECIFICATIONS may be changed at any time, at the discretion of CERTIFYING
ENGINEER, based upon changes in material characteristics, field conditions, and/or
compaction equipment.
Maximum rock size for rock fill shall be two -thirds of the compacted lift thickness, unless
otherwise approved by MANAGER, DESIGN ENGINEER, and CERTIFYING
ENGINEER. CONTRACTOR shall remove oversize materials from fills at no additional
cost to CC &V.
0 C. Select Structural Fill
Section 02200 Page 9 of 18 September 3, 2008
Earthworks Revision 1
SAProjects \1125E CCV CQA \I - Tech Specs \02200.r1.doc