April 7, 2021 Page 4
20210407 Nashua Phase III Stage 2 Proposal-Rev1.docx
=» Protection methods during construction and filling;
= Inspection and testing methods prior to filling;
s» Instrumentation monitoring requirements for strain and settlement of the geosynthetics
relative to their design tolerances;
= Action levels; and
=» Procedures for evaluating and responding to said action levels.
Sanborn Head will also prepare fill sequence plans specific to Phase III] Stage 2 that will be
included in the updated Operating Plan. Additions to the updated Operating Plan and Closure
Plan will be reflected in the updated Financial Assurance Plan. Because the extents of Phase
III do not change as part of the design, we do not anticipate a large increase in closure and
post-closure costs due to Phase III Stage 2.
Task 3 Type II Modification to Solid Waste Management Facility Permit
Application
Sanborn Head will prepare an application for a Type II Modification to Solid Waste
Management Facility PMA (Type II PMA) in accordance with Env-Sw 315 for the City’s
signature and submittal to the NHDES. The Type IJ PMA will include documents to be used
for construction.
The Type IJ PMA will include a completed form, a brief summary of the project, and
references to supporting documentation. In addition to completing the application form, we
will prepare a cover letter for the City’s use in transmitting the application to the NHDES.
Also included under this task is reproduction of the Type II] PMA. In accordance with current
NHDES preferences, we plan on submitting an electronic copy of the Type II PMA so that only
one paper copy of the application package will be prepared. Likewise, we will provide the
City with an electronic copy as well as one paper copy.
Prior to submitting the Type II] PMA, we will schedule a pre-submittal meeting with the
NHDES. We anticipate that this meeting would be held in Concord, NH at the NHDES office
and would serve to assist the NHDES in their review of the documents. Alternatively, this
meeting could also be held over a web-based meeting. Our services would also include
preparing responses to the NHDES review comments to the PMAs. At this time, the extent of
review comments, if any, is not known. For purposes of this proposal, we carried an
allowance of $5,000 to respond to comments. We will notify you if it appears that the effort
to respond to comments is greater than we assumed.
Task 4 Project Management and Meetings
This task includes routine communications with the City as well as design review related
meetings. We assume that we will meet with the City two times in Nashua during the course
of the Phase III Stage 2 project. We expect that an initial meeting would be held within two
weeks of our receipt of authorization to proceed to review major design issues and establish
a project schedule. A subsequent meeting would be held to review the draft documents and
incorporate the City’s comments as the design progresses. The meetings will be particularly
SANBORN HEAD
