CHANGE ORDER
No. 2
PROJECT: Nashua Transit Center Retrofit
OWNER'S CONTRACT NO.: __ RFP0979-040821
EXECUTED CONTRACT DATE: July 15, 2021
DATE OF ISSUANCE: _ November 1, 2021 — EFFECTIVE DATE: Upon City Approval
OWNER: City of Nashua, NH
OWNER’s Purchase Order NO.: 165194
CONTRACTOR: DL King & Associates, Inc.
ENGINEER: Greenman-Pedersen, Inc.
The Contract is modified as follows upon execution of this Change Order:
Description:
1. Interior tile and grout change to provide porcelain tile in place of the ceramic wall tile. Also, substitute
polymer modified grout to a laticrete epoxy grout.
2. Drainage grade and pipe changes to drain manhole # 520 and catch basin #130.
Justification:
1. The decision to change the wall tile to a porcelain tile is to match the specified porcelain tile being installed
on the Transit Center flooring. The ceramic tile specified for the walls will not match the quality or finish of the
floor tile. With this change, the quality will be higher with a strong resistance to staining and damage. The
epoxy grout substation will also provide a significant quality upgrade as the epoxy grout has a stronger
resistance to staining and mold. Making the grout on the floor and walls easier to clean with less future
maintenance being required.
2. An existing gas utility service to City Hall was discovered to be at an underground elevation that prevented
the specified 12-inch plastic drainpipe to be installed at specified location. A change was made to change the
pipe elevations and provide a reduced size 8-inch ductile iron pipe at higher grades. The ductile iron material
was selected to provide adequate strength with the new grades for both drainage structures impacted. Both
drainage structures were adjusted to accommodate the needed changes. Any changes made were reviewed
and inspected by the gas utility owner for approval.
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