February 6, 2019 Page 6
20190206 Addendum Questions File No. 3066.09
35.
36.
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38.
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40.
The boring/well logs for the wells to be decommissioned are attached. PVC well
casing diameters for the wells to be raised are as follows:
Wells MW-110S & R= 2” diameter;
Wells MW-111S & R = 1.5” diameter; and,
Well B-4 = 1.5” diameter.
Please provide a detail on how the wells are to be extended.
The NHDES does not provide guidance related to well extensions, however, standard
construction practices would still apply to the materials used for the extended wells
(i.e., no glues or solvents, use of lockable cap, maintain seal at surface, etc.). Attached
is a schematic provided by NHDES. The contractor would be required to remove
existing surface completion components and extend the existing PVC pipe without the
use of glues or solvents. Contractor can use a variety of couplings including, but not
limited to, slip couplings, Fernco flexible couplings, or compression couplings. Soil
placement around the extended PVC pipe shall be performed with care and typical
surface completion components shall be installed at the proposed finish grade.
Please confirm the portable litter fence shall be 50’ lengths. Manufacturer said
that the fence comes in 40’ lengths.
Either 40-foot or 50-foot lengths for the portable litter fence are acceptable.
Page 3 of the Bid Form Section 8.01 (B) refers to “Bid Bond”. Will a bid bond be
required? If so, will a form be provided? What will be the required percentage?
A Bid Bond will not be required for this project.
Can boring/drilling logs be provided for the existing monitoring wells and
piezometers that need to be decommissioned?
Yes, the boring/drilling logs for the wells and piezometers to be decommissioned are
attached.
The bid item definition for Item 7h-Primary Drainage Sand, spec. sheet 38 of
255, states that furnishing and installing of drainage sand for interim
stormwater berms is incidental to the item. Where are the stormwater berms
called out? Can you please provide a detail for the berms?
There are no interim stormwater berms proposed as part of this work.
On page 17 of 24 on the 11 x 17 plans, tilted SUMP RISER BUILDING ELEVATIONS
AND SECTIONS, there is a_ written section sub-titled Building
Components. Under the Building Components section, a Sparling Instrument
656 Tigermag flanged magnetic flow meter is specified. Can a flanged 2 inch
Badger Magnetic Flow Meter, M2000 be substituted?
SANBORN i HEAD
