2014-02-07_REPORT - M1980244 ‎(8)‎

• Permit No: M1980244
• IBM Index Class Name: Report
• Doc Date: 2/7/2014
• Doc Name: Final Report QA Monitoring and testing volume 2 of 2 document 1 of 3Mill Site Earth works
• From: CC&V
• To: DRMS
• Email Name: TC1
• Media Type: D
• Archive: No

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D. CONTRACTOR shall grade topsoil stockpiles to prevent erosion and ponding of precipitation in
the stockpile areas. The maximum topsoil stockpile height will be approved by MANAGER. The
CONTRACTOR shall protect stockpiled topsoil by an effective cover of non-noxious, quick-
growing, annual, and perennial plants, approved by MANAGER, which shall be seeded or planted
during the first appropriate growing season after removal.
3.03 WASTE REMOVAL:
Waste material is defined as material too wet,too dry, frozen or containing ice or snow,containing organic or
other deleterious matter,having poor characteristics of grading or compaction,having other characteristics that
may result in undesirable settlement or other movement of the fill, or within the fill, or otherwise not meeting
the requirements of the SPECIFICATIONS,provided that this definition permits drying,water, and any other
processing or reprocessing to make the material stable and suitable prior to incorporating it into the fill as
permitted in the SPECIFICATIONS or by the MANAGER and CERTIFYING ENGINEER.
A. CONTRACTOR shall excavate and remove waste in a manner that will minimize contamination
with other soil horizons.
B. CONTRACTOR shall stockpile removed waste at locations designated by MANAGER.
3.04 EXCAVATION:
A. CONTRACTOR shall perform excavation to the lines and grades shown on the DRAWINGS or as
directed by MANAGER. No excavation shall begin until the CONTRACTOR has provided
construction staking for the proposed work.
B. CONTRACTOR shall prevent the disturbance of surrounding areas during excavation. Where
selective excavations are required to obtain materials for Structural/Overburden Fill and Select
Structural Fill,the material removed from the excavations shall be taken directly to the fill areas or,if
required,stockpiled by material types. The stockpiles shall be approved by MANAGER.
C. CONTRACTOR shall grade all excavations to ensure grades are maintained to provide adequate
drainage at all times. Work shall be suspended by CONTRACTOR when, in the opinion of
MANAGER and CERTIFYING ENGINEER, the site is overly wet, muddy, or otherwise
unsuitable for proper maintenance,until directed otherwise by MANAGER,at no cost to CC&V.
D. In excavations where Structural/Overburden Fill or Select Structural Fill is to be placed on slopes
steeper than 3H:IV,horizontal benches shall be excavated into the slope to allow fill to be placed in
horizontal lifts. The CONTRACTOR shall continuously bench and key embankment material into
the existing material a minimum of 2 feet.
E. The CONTRACTOR will be responsible for the safety of temporary construction slopes.
CONTRACTOR shall inspect all temporary and permanent open-cut excavations on a regular basis
for signs of instability. Should signs of instability be noted, CONTRACTOR shall immediately
undertake remedial measures and shall notify MANAGER immediately. Permanent cut slopes shall
be left in smooth,safe,and stable condition at the end of the workday.
F. CONTRACTOR shall conduct all excavation and shoring operations in compliance with applicable
MSHA,Colorado State and Federal government laws and regulations.
Section 02200 Page 6 of 16 May 9,2012
Earthworks Revision 1