Search

10.

11.

12.

B. Any errors, defects or omissions in the execution of the work or in the materials
furnished by the Contractor, even though they may have been passed or overlooked
or have appeared after the completion of the work, discovered at any time before the
final payment is made hereunder, shall be forthwith rectified and made good by and
at the expense of the Contractor and in a manner satisfactory to the Engineer.

C. The Contractor shall reimburse the Owner for any expense, losses or damages
incurred in consequence of any defect, error, omission or act of the Contractor or his
employees, as determined by the Engineer, occurring previous to the final payment.

Sanitary Regulations

Sanitary conveniences for the use of all persons employed on the work, properly screened
from public observation, shall be provided in sufficient numbers in such manner and at
such locations as may be approved. The contents shall be removed and disposed of in a
satisfactory manner, as the occasion requires. The Contractor shall rigorously prohibit the
committing of nuisances within, on or about the work. Any employees found violating
these provisions shall be discharged and not again employed on the work without the
written consent of the Engineer. The sanitary conveniences specified above shall be the
obligation and responsibility of the Contractor. They shall not be located on private
property unless written authorization from the property owner has been provided to the
Engineer.

Safety and Health Regulations

This project is subject to the Safety and Health regulations of the U.S. Department of
Labor set forth in 29 CFR, Part 1926, and to New Hampshire law, RSA, Title XXIII:
Labor. Contractors shall be familiar with the requirements of these regulations.

Site Investigation

The Contractor acknowledges that he has satisfied himself as to the conditions existing at
the site of the work, the type of equipment required to perform this work, the quality and
quantity of the materials furnished insofar as this information is reasonably ascertainable
from an inspection of the site, as well as from information presented by the drawings and
specifications made a part of this contract. Any failure of the Contractor to acquaint
himself with available information will not relieve him from the responsibility for
estimating properly the difficulty or cost of successfully performing the work. The Owner
assumes no responsibility for any conclusion or interpretation made by the Contractor on
the basis of the information made available by the Owner.

The Contractor shall be responsible for verifying and determining the location, size,
direction of flow (if applicable) and elevation of all existing utilities, shown or not shown
on the plans. Every effort has been made to accurately depict the existing sewer system,
including sewer services. However, due to the age of the system, there are no records for
some sewer services as indicated on the plan set. These situations, including other
unknown pipes encountered during excavation, may require additional investigations. The
City may avail staff and equipment to aid in the investigation. Considerations for delay
costs shall only be given in extreme circumstances.

01110-5

13.

14.

15.

Electric Service

A. The Contractor shall make all necessary applications and arrangements and pay for all
fees and charges for electrical energy for power and light necessary for the proper
completion of this contract during its entire progress. The Contractor shall provide
and pay for all temporary wiring, switches, connections, and meters.

B. There shall be sufficient electric lighting so that all work may be done ina
workmanlike manner where there is not sufficient daylight.

Hazardous Waste

Should the Contractor, while performing work under this contract, uncover hazardous

materials, as defined in federal, state, and local regulations, he shall immediately notify the
Engineer.

Disposal of Excess Material and/or Hazardous Material

All excess clean excavated materials and any asbestos containing material shall be
disposed of at the Nashua Landfill. Contractor shall be responsible for payment of tipping
fee for asbestos containing material. The tipping fee for clean excess material shall be
waived. Contractor shall make arrangements with the Owner prior to hauling materials.
Disposal of other Hazardous Materials shall be in full accordance with all applicable
federal, state and local regulations.

END OF SECTION

01110-6

SNIAWP WN

SS ee eS eS KE CO
ARON S)

3.

SECTION 01140
SPECIAL PROVISIONS

General

Excess Material and Hazardous Material
Water for Construction Purposes

Pipe Location

Dimensions of Existing Structures
Occupying Private Property

Existing Utility Locations - Contractor's Responsibility
Coordination of Work

Time for Completion of Contract
Maintenance of Trench Surface

Cutting, Fitting and Patching

Protection of Aquifer

Contractor’s Representative

Hours of Construction Activity
Construction Crews

General

The requirements made under this Section are applicable to all work contemplated under
this Contract.

Excess Material & Hazardous Material

The Contractor shall deposit all excess clean and/or asbestos containing material at the
Nashua Landfill. In the event asbestos cement pipe is found, certified City personnel will
transport the asbestos material to the City landfill. Should larger amounts of asbestos be
found, the Contractor shall be responsible for removal of the asbestos material should the
City personnel be unable to handle the volume of the material at an agreed upon cost by
the City in advance of the work. Tipping fees for excess clean material shall be waived.
All deliveries of excess and/ or hazardous material to this location shall be coordinated
with the City. Disposal of other hazardous materials shall be in full accordance with all
applicable Federal, State and local regulations.

Water for Construction Purposes

A. The Contractor shall supply water for construction purposes at no additional cost to the

4.

Owner.

Pipe Location

Pipe shall be located substantially as indicated on drawings. The Owner reserves the right,
acting through the Engineer, to make such modifications as may be deemed desirable to
avoid interference with existing structures or for other reasons. Sewer and water mains
shall be separated 10 feet horizontally.

01140-1

5.

10.

Dimensions of Existing Structures

Where the dimensions and locations of existing structures are of critical importance in the
installation or connections of new work, the Contractor shall verify such dimensions and
locations in the field before the fabrication of any material or equipment which is
dependent on the correctness of such information.

Occupying Private Property

The Contractor shall not enter upon nor occupy with men, equipment or materials any
property outside of the public highways or Owner's easements, except with the written
consent of the property owner or property owner's agent.

Existing Utility Locations - Contractor's Responsibility

The location of existing underground services and utilities shown on the drawings is based
on available records. It is not warranted that all existing utilities and services are shown,
nor that shown locations are correct. The Contractor shall be responsible for having the
utility companies locate their respective utilities on the ground prior to excavating.

To satisfy the requirements of New Hampshire law, RSA 374, the Contractor shall, at
least 72 hours, exclusive of Saturdays Sundays and holidays, prior to excavation in the
proximity of telephone, gas, cable television and electric utilities, notify the utilities
concerned by calling "DIG SAFE" at telephone number: 1-888-344-7233.

The Contractor shall coordinate all work involving utilities and shall satisfy himself as to
the existing conditions of the areas in which he is to perform his work. He shall conduct
and arrange his work so as not to impede or interfere with the work of other contractors
working in the same or adjacent areas.

Coordination of Work

The General Contractor shall be responsible for coordinating his own work as well as that
of any subcontractors. He shall be responsible for notification of the Engineer when each
phase of work is expected to begin and the approximate completion date.

Time for Completion of Contract

The time for completion of this contract is stipulated in the Form of General Bid. The
Bidder shall base his bid on completing the proposed work by the completion date
stipulated in INFORMATION FOR BIDDERS.

Maintenance of Trench Surface

After backfilling and compacting the trench, the Contractor shall be responsible for
keeping the ground surface dry and passable at all times until the surface has been
restored to original conditions.

01140-2

11.

12.

13.

14.

Cutting, Fitting and Patching

The Contractor shall do all cutting, fitting, or patching of his work that may be required to
make its several parts come together properly and fit it to receive or be received by work
of other Contractors, as shown upon or reasonably implied by the drawings and the
specifications for the completed structure, including all existing work.

The Contractor shall not endanger any work by cutting, digging, or otherwise and shall not
cut or alter the work of any other Contractor, save with the consent of the Engineer.

All holes or openings required to be made in new or existing work, particularly at pipe,
conduit, or other penetrations not covered by escutcheons or plates shall be neatly
patched. All such holes shall be made completely watertight as approved by the Engineer.

Size and locations of holes required in steel, concrete, or other structural or finish
materials for piping, wiring, ducts, etc., which have not been located and detailed on the
drawings shall be approved by the Engineer prior to layout and cutting thereof. All holes
shall be suitably reinforced as required by the Engineer.

Workmanship and materials of patching and repair work shall match the adjacent similar
work and shall conform to the applicable sections of the specification. Patches and joints
with existing work shall provide, as applicable in each case, visual, structural, and
waterproofing continuity.

Protection of Aquifer

The Contractor's attention is directed to the fact that the construction area maybe located
within the watershed of the existing water supply. The Contractor shall take extra
precautions to ensure that no pollutants enter the groundwater table from the construction
area. The Contractor shall not store fuels or other hazardous materials or potential
contaminants on the construction site. In the event of a spill, the Contractor shall
immediately notify the Engineer.

Contractor's Representative

The Contractor shall designate a representative who will be available to respond to
emergency calls by the Owner at any time day and night and on weekends and holidays
should such a situation arise.

Hours of Construction Activity

The Contractor shall conduct all construction activity between 7:00 a.m. and 5:00 p.m.,
Monday through Friday. No construction work shall be allowed on Saturdays, Sundays or
Holidays as shown in the General Conditions without written authorization from the

Owner.

Omitted.

01140-3

15. Construction Crews

The Contractor shall not increase the number of construction crews assigned to the work
without providing one-week advance notice to the Engineer.

END OF SECTION

01140-4

SECTION 01150

MEASUREMENT AND PAYMENT

PART 1 — GENERAL

1.1

A.

SUMMARY

Under the price specified to be paid for each item, the Contractor shall furnish all
labor, materials, equipment, plant, and perform all operations to complete all work as
indicated and specified. All supervision, overhead items, bond and permit costs,
protection and precautions and all other costs, incidental to the construction work,
complete, and as specified, are also included.

.A complete, finished, working job, as intended by the general nature of these

Specifications, shall be produced whether or not any particular wording or direction is
omitted or inadvertently not clearly stated.

Measurement for payment shall be by the Engineer, except where noted elsewhere in
this Specification. Measurement for payment for lump sum items shall be on the
basis of percentage of work complete and in place.

Each unit or lump sum price stated in the Bid shall constitute full compensation as
herein specified for each item of work completed in accordance with the Drawings
and Specifications.

The prices for those items which involve excavation shall include compensation for
transportation and disposal of surplus excavated material and handling water.

The prices for all pipe items shall constitute full compensation for furnishing, laying,
jointing, and testing of pipe; chlorinating, excavation and backfill; and clean up.

In all items involving excavation, the price shall be based on doing the entire
excavation in earth. Where rock is excavated, the price thereof shall be in addition to
the cost of excavating earth, and no deduction will be made in the amount for earth
excavation.

The sewer pipe being replaced is very old, in some cases installed over 100 years ago.
Although the City does extensive sewer video and field investigations to properly
locate pipes, it is not possible to depict all field conditions accurately since some
pipes cannot be investigated and/or change alignment or configuration underground.
Inevitably, the Contractor should expect some delays as a result of the unknown or
unforeseen conditions underground. A reasonable amount of time (at least 3 hours
per occurrence) must be budgeted to allow for down time when an unknown pipe or

01150- 1

differing conditions are found and require additional investigation by the
City/Contractor. The City Wastewater Department will assist using camera
equipment to investigate unknown pipes, but it does take some time for them to stop
their work and arrive on site to investigate the unknown pipe(s). Should the
investigation take longer than 3 hours, the City will work with the Contractor on
negotiating a reasonable hourly compensation for the down time.

Dye tests of the sewer service line may be necessary if determined by the Engineer
where the house connections were not well defined. Such dye tests shall be
performed by the Contractor at no additional expense to the contract. The contractor
should make arrangements with the house/apartment occupants on when to enter to
perform this test.

Unit prices submitted for various items of work will be utilized for determining prices
of any additional work necessary during construction.

Owner reserves the right to delete any item or modify estimated quantities without
penalty. Contractor shall make no claim as to lost profits or added costs due to
quantity adjustments or deletions.

Unit prices listed shall be the basis of cost adjustment for additional items of work
required by a change order.

. All prices shall include transportation and disposal of excess materials as applicable.

Unit and lump sum prices shall reflect salvage value of all pipe materials and
appurtenances removed as part of the work.

All prices shall include costs related to filing and obtaining applicable permits from
local and state agencies.

PART 2 - DESCRIPTION OF PAY ITEMS

2.01 SEWERS COMPLETE IN PLACE

A.

REPLACE EXISTING SEWERS WITH NEW PVC SEWERS:

1. The length of sewers to be replaced shall be paid for under the appropriate

subdivisions of this item and shall be measured by the linear foot along the
completed sewers, including wyes and tees, from centerline of manhole to
centerline of manhole.

2. The linear foot price for this item shall constitute full compensation for

demolition/disposal of the existing sewer and installing a new PVC sewer main
complete in place as indicated on the drawings and/or as specified, including
furnishing all materials, labor, tools, and equipment necessary to complete the
work, including but not limited to handling of existing wastewater flows, bypass-

01150-2

pumping, excavation, backfill, removal of old pavement and other unsuitable
materials, bedding, select material, gravel sub-base, clearing, grubbing, testing, a
post video analysis, plugging of decommissioned pipe penetrations in manholes,
removal and replacement of sidewalks and curbing (separate pay items for these
two items) and all work incidental thereto and not specifically included for
payment under other items

Ten (10) percent may be withheld from payment under the item until the sewer
has satisfactorily passed the testing requirements as specified.

The Contractor should factor into the costs possible delay time where
underground utility crossings are encountered, including water, gas, electric and
telecommunications. There are some duct bank crossings expected in the vicinity
of Franklin and Locust Street. The City bears no responsibility for any delay,
repairs or extra costs that may be necessary to the utility when crossing it.

Work shall conform to City of Nashua Standard Specifications Sewer & Drains
(available upon request from the City and also on the City web site
www.nashuanh.gov under Government —City Departments— Public Works—
Engineering Department). PVC Sewers crossing within 18" of a Water Main
shall be constructed as Class 52 Ductile Iron Pipe (unless stated otherwise in the
plans). Watertight Mechanical joint couplings shall be used to connect the PVC
pipe to the Ductile Iron Pipe, all in accordance with Section 3H-Standard
Specifications.

The work shall be paid for at the contract unit price per linear foot under Item 1a,
1b, 1c (1) and 1e. In locations where the old pipe to be removed is outside of but
adjacent to the trench of the proposed pipe, the removal of the old pipe will be paid by
Item 20.

Work shall also involve removal and disposal of asbestos pipe. This work will be
done by a certified contractor. This will be paid by Item 6q.

SECTIONAL LINING (Cured-In-Place-Pipe)

The length of sewer pipe to be renovated with cured-in-place-pipe (CIPP) or a
short liner CIPP shall be paid for under the appropriate subdivisions of this item
and shall be measured by the linear foot along the completed CIPP installed from
outside edge of beginning sewer manhole to inside edge of ending sewer manhole
(ie. payment is for the actual length of CIPP pipe installed). Payment for this
item shall be the same whether a CIPP short liner or regular CIPP installation.

Linear foot price for pipe lining shall include full compensation for initial pipe
cleaning, sewer pipe video to identify all service locations, work related to
developing a report of the video before lining (to be provided to the engineer), all
equipment, water or steam needed to cure the pipe, and post video of the fully
cured CIPP pipe. All pre and post videos will be submitted to the Engineer, will

01150 -3

wo

be accompanied by a written report and will clearly show the condition of the
main and all service connections. Contractor is responsible for any repairs needed
to the CIPP should there exists imperfections or defects in the lining that is
judged by the Engineer to cause any problems with sewer flow such as potential
backups or loss in pipe capacity.

. The contractor shall provide means for cleaning of the pipe which shall be

incidental to the pipe lining.

. Ten (10) percent may be withheld from payment under the item until the CIPP has

satisfactorily videoed to verify it has been installed correctly.

The work shall be paid for at the contract unit price per linear foot under the
series of Items 1k and 1L.

When necessary, prior to pipe lining work, a protruding lateral connection will be
cut and removed using Item In.

CONNECT NEW SEWER TO EXISTING MANHOLE WITH OPENING and
CONNECT TO EXISTING MANHOLE BY CORE AND BOOT:

The quantity of connections from new sewers to existing manholes to be paid for
under this item shall be per each actual connection made. The unit price each
shall constitute full compensation for furnishing all labor, tools, equipment and
materials necessary for making the connections as shown on the drawings and as
specified.

The unit price shall include removing existing stubs, removing existing grout
around the opening, installing a watertight connection, reforming the entire
disturbed bench, floor, and invert; all brickwork, concrete, grout, and other
joining material; excavation, backfill, and all other work necessary to make the
connection.

In cases where a connection is to be made to an existing or new manhole or catch
basin where none exists, then a cored hole and boot will be installed. Work shall
include all materials, equipment and labor to core an opening for a 12-inch pipe
or size shown on the plans.

The work to connect to an existing structure with an existing opening shall be
paid for at the contract unit price per each under Item 1h. The work to connect to
existing structure by providing a new hole (coring or other means) and installing a
boot shall be paid for under Item 1h (1).

01150-4