November 12, 2019 Page 2
20191112 Budget Increase Letter.docx
Preparing modified base grades based on elevated groundwater readings;
Meeting with the NHDES regarding Groundwater Demonstration and revised grading;
Preparing calculations, redesigning leachate collection system components, and
compiling a Type II permit modification application at the request of the NHDES based
on the modified Phase III grading;
Updating project quantities for the selected contractor;
Preparing modified perimeter grades to offset additional fill required to construct the
Phase II] modified base grades;
Developing a procedure to decommission the I/P Trench and coordinating with the
NHDES;
Meeting with the NHDES to discuss the I/P Trench decommissioning procedure;
Reviewing the contractor’s change order request, preparing a change order review
document, and communicating/coordinating with the City on our review and the City’s
position on select change order items;
Preparing for and attending a meeting with Ward 5 regarding the Phase III construction
project and the Four Hills Landfill in general; and
Providing field CQA services beyond the originally anticipated construction schedule of
16 weeks.
The cost to provide the services above was roughly $60,500 and was billed out of Task 1
CQA Services.
Remaining Scope Items
To complete our Construction Quality Assurance scope of services and to maintain
compliance with the Solid Waste Rules, we still need to complete the following tasks during
the Phase II] construction project:
Provide CQA services (approximately 4 more weeks of full-time and part-time coverage
based on the projected construction schedule provided by Charter - see enclosed). The
additional field coverage time that our budget increase assumes for this task is included
in the enclosed schedule and is also summarized below:
ao 3 days of full-time coverage for “ramp” subgrade and geosynthetics installation.
a Field visit check-ins once the liner system components are installed “as needed.” For
the purposes of this budget increase, we assume 7 check-ins.
Provide laboratory testing services for soils and geosynthetics;
Prepare for and attend weekly construction meetings - we recommend reducing the
construction meetings to occur bi-weekly (i.e, every other week) to reduce costs
considering the limited amount of work that remains. For the purposes of this budget
increase, we assume there will be 3 more construction meetings;
Prepare bi-weekly construction summaries to NHDES. We assume 3 summaries will be
required for the remainder of the project;
SANBORN i HEAD
