COPY NO, 50 CONTRACT No. 3-107
WATER AND POWER DEVELOPMENT AUTHORITY
GROUND WATER AND RECLAMATION PROGRAM
LOWER THAL DOAB
CONTRACT DOCUMENTS FOR
CONSTRUCTION OF TUBEWELLS
TIPTON AND KALMBACH, INC.
ENGINEERS April 1965
With Revisions Made Through 3 June 1965.
CONTRACT No. 3-107
WATER AND POWER DEVELOPMENT AUTHORITY
GROUND WATER AND RECLAMATION PROGRAM
LOWER THAL DOAB
CONTRACT DOCUMENTS FOR
CONSTRUCTION OF TUBEWELLS
TIPTON AND KALMBACH, INC.
DENVER, COLORADO April 1965
With Revisions Made Through 3 June 1965.
INSTRUCTIONS TO BIDDERS
1.1 Introduction .
1.2 Definitions .
1.3 Preparation of Tender
1.4 Data Required of Bidders 1.5 Submission of Tenders 1.6 Investigation .
1.7 Explanation of Documents 1.8 Withdrawal of Tender .-
2.1 Scope of Contract .-2.2 Intent of Contract Documents 2.3 Laws, Rules, and Regulations 2.4 Time of Contract .---. 2.5 Force Majeure .*
2.6 Assignment and Sub-contracts
2.7 Liquidated Damages .e.* 2.8 Termination of Contract 2.9 Certificates of Acceptance and Completion. 200 Arbitration.--.-. .
2-11 Quantities of Work .
2.12 Changes in Work 24J3. Contractor's Employees .
2.14 Cooperation with Other Contractors
2.15 Contractor's Program 2.16 Lands and Rights-of-Way 2.17 Supervision and Inspection .
2.18 Transportation and Shipping
2.19 Permits, Visas and Licenses 2.20 Patents and Copyrights 2.21 Operation of Unsatisfactory Equipment 2.22 Equipment Warranties .
B-1 B-1 B-2 B
B-6 B-6 B-7 B-7
C-6 C-? C-8 C-8 C-8
Finances and Payments
2.23 Performance Bond C-14
2.24 ITsurance . .-----.---- C-14
2.25 Advance of Funds to the Contractor
and Repayment.C5. 0-15
2.26 Fidelity Bond . . -17
2.27 Terms of Payment C-17
2.28 Import Duties and Taxes C-19
2.29 Provisions of Particular Application to
the Contract .*. C-20
Description of Project and Work
3.1 Location of Project .
3.2 Description of Area .D1.
3.3 Climatological Data .D-2. D-2
3.4 Geology .4. 4.4-- 4*D2
3.5 Description of Tubewells .----.--.* -3
3.6 Number and Sizes of Tubewells D-4
3.7 Permanent Equipment and Materials D-5
3.8 Bill of Quantities .---.4.4- *- D-5
3.8 Construction Equipment and Materials D-10
3.9 Contractor's Camps .44 -.--.--. D11
3.10 Safety .- .-.***. D-11
3.11 Clean-up .4.4--.4.--.-***.D-12
SPECIFICATIONS CONSTRUCTION OF TUBEWELLS Drilling of Tubewells
4.1 General .4.E.1
4.2 Drilling E-1
4.3 Data and Records .*2
4.4 Electric Logs .-. +--.*** E-3
4.5 Sterilization .0--4--- ------- E-3
Installation of Casing
4.6 General E.--e+- -4
4.7 Fabrication E-4
4.8 Installation .--- E-5
Gravel Shroudin .
4.9 General . . .-+ -* E-7
4,10 Gravel Source B. E-7
4.11 Installation E-8
Development and Testing
4.12 General +. E-10
4.13 Development .*.-. E-10
4.14 Testing . E-10
4.15 Sterilization and Sealing .---- E-13
SPECIFICATIONS CONSTRUCTION OF APPURTENANT FEATURES
5.1 General .e.e5.2 Placement of Fill F-1
5.3 Compaction F-2
5.4 General F-. . . F-3
5.5 Portland Cement . .--ge g.-.g F-3
5.6 Reinforcement g.e g.--------. F-4
5.7 Aggregates .g. .g--. F-4
5.8 Water .--g.--------. F-5
5.9 Air-Entraining Agent F-5
5,10 Composition of Concrete F-6
5.11 Batching of Concrete F-6 5.12 Mixing Concrete .7.----- F--7
5.13 Form Construction F-7
5.14 Placing Concrete .0. F-7
5.15 Curing F-8
5.16 Finishing . F-9
5.17 Joints 0.---.----.--.- F-9
5.18 General .F0. 5,19 Materials . F-10
5.20 Mortar F-10
5.21 Brick F-Il
5.22 Placing .*. F-11
5.23 Curing and Repair F-12
PuaM House Fixtures
.5.24 General F-13
5.25 Materials and Installation F-13
5.26 Painting -13
Installation of Equipment
5.27 General .F.1. F-15
5.28 Installation of Pumps F-15
5.29 Installation of Discharge Pipe F-16
5.30 Installation of Motors F-16
5.31 Installation of Motor Controls and Wiring F-17
5.32 Servicing .F.o. F-20
5.33 Operation and Acceptance Tests F-20
5.34 Final Sterilization F-22
SPECIFICATIONS PROCUREMENT OF
PERMANENT EQUIPMENT AND MATERIALS
Standards and Design
6.1 General .0.--. -1
6.2 Standards and Specifications G-1
6.3 Drawings and Data to be Furnished by the
Contractor .--. G-2
6.4 Inspection and Tests . G-3
6.5 Design of Equipment . -4
6.6 Instruction Plates and Markings G-4
607 Shop Assembly G-5
6.8 Painting .--., G-6
6.9 Preparation for Shipment 0. G-6
Pumps (Water Lubricated)
6*10 General .- G-7
6.11 Design .G.4e00.0.** -7
6.12 Pump Bowl Assembly .0.*. G-8
6.13 Column Pipe and Line Shaft G-9 6.14 Surface Discharge Head Assembly G-9 6.15 Prelubrication System .---.--- G-10
6.16 General .--- G-11
0.17 Design G.1. .,. G16.18. Shop Tests o.----.------. G-13
6.19 General .@.---.---. G-14
6.20 Design .---------.-----. G-14
6.21 Main Circuit Breakers G-15
6.22 Contactors .-. .** G-16
6.23 Thermal Overload Relays G-16
6.24 Watthour Meters .--. G-17
6.25 Lighting Circuit Breakers G-17
6026 Conductors .o.---.---- G-17
6.27 Motor Control Cabinets G-18
6.28 Shop Tests a a. *.V, *.- -.--- -A e.----*. G-19
6.29 General .----.********""*""*"'''' G20
6.30 Materials 0.e--*-***".****"**"* G-20
6.31 Fabrication .G-. *e* ****"*"*"". G20
Steel Casing Pive (Pump housing Casin)
6.32 General .e.-----"'''****'g****. 0-21
6.33 Materials .- G.-.-*'-******""********* G-21
Fiberglass Casing Pipe (Tubewell Casing)
6.34 General .0.e.----e-**"" ***""**""" G-22
6.35 Materials Quality .G.e"e '" ""'" G-22
6.36 Types and Composition .--*-e-e-'''-** 0-22
6.37 Dimensions .G.---e--''e""'""" 0-23
6.38 Couplings ." G-24
6.39 Slotting Casing .--------e--"""""** G-23
7.1 Drawing List ".****""""'I'"
A. Protocol of 15/1/65 I-1
B. Geoistrazivanja offer of 25/6/65 1-7
C, Energoinvest offer of 26/6/65 I-13
Do Letter of Intent I-34
Ei Letter to the WAPDA Chairman from the
Ambassador of Yugoslavia dated 3/7/65. I-41
F. Contract Agreement, Including Electrification 1-42
INSTRUCTIONS TO BIDDERS GENERAL INSTRUCTIONS
1. 1 Introduction.
(1) Tender; shall be preared aft4 subiv~ttd in aecardanco wtrth the follwing Intrtionc.S E&4ch ToAnd^1r All contain all information ead data required to be fursished, Bad shall oMnom to the requirements met forth
1. 2 Definitions.
(1) Wherever the following terms are used or referred to herein they shall have the following meanings:
Authority (WAPDA) Engineer Bidder
Contractor Contract Documents Contract
-- Water and Power Development
Authority of West Pakistan.
-- Tipton and.Kalmbach, Inc.,
with offices in Denver, Colorado,
U. S. A. and Lahore, Pakistan.
A firm invited to submit a
Tender for performance of the work embodied in the Contract
-- The firm awarded the Contract
for performance of the work
embodied in the Contract
-- The Contract Documents consist
of the Contract Provisions,
General Conditions, Specifications,
Tender and Appendices, Drawings and Addenda.
-- The Contract between the
Authority and the Contractor,
together with and including
the Contract Documents.
Certificate of Acceptance Certificate of Completion Change Order Date of Contract Works
Certification issued by the
Engineer to the Contractor for
the acceptance of each tubewell.
-- Certification issued by the
Engineer to the Contractor
upon completion of the Works
under the Contract.
-- A written instruction or order
issued by the Engineer modifying
the form, quality or quantity of the Works or any part thereof.
-- Date of execution or signing of
-- All the construction and physical
works embodied in the Contract
-- Where referring to time periods,
shall include Sundays and holidays.
-- The unit of measurement of flow
equivalent to one cubic foot per
1. 3 Preparation of Tender.
()Tndere'haR1 bez prepared if three eepies eqnpletez Qih34! Appendioa", and 49or thi a purpe se ther r incladd hte __-4 ~ eabe meats thre. adtiefonal copies -af tha Tender. On czp ha1-&-.__ eel"O0riginA3" Maid the. thrm twog raopiesi shall be akd Cpy. idre hod !retain the eepy ef the Te der bound with the Coentra.o cunrt~oatie*
&12agn their SIMenao, :0iciQ6:V 6--ftUSeaxiC-% r
(et) Ttidre shall lzz prepa~red by A!Maig-eii4l f, Wez~d
comp!tl- a-d tout alt.dnmshall be -pe- -itten ora e n r-l -n
signing th- Trender- shall he i n.Te
should. b- without alterat4 or ~ e&u-, -4, ~ Pt that an*
alterQ:ationsQ; or-eaaoW96 to orec8rrrer ae-ytlO
INSTRUCTIONS TO BIDDERS
(e)-The Bidde. -ha- p -e-- a17(4i (-App en Abectob
.-nde qtr-t e -- --
app repo enae cpa cMe-4n-t)m~ p --t~hr --4ni ice-4Z-efrae--tef-Kbq-staled,--nR e~tbni-et-nqjvpn-P-oe-hL
be et rin hngte urppt -ati-st44h dte l-anxioung gior
.hide-ta ameantR r-he--.Ipa -w-d4l1-apprp az -rctand
tieading .-kfte- ~-ua~nt.,me 4s-pro-and ~upe n-curedy
+the- ontra c t -- panclude-aloher eo t t ,o-an-hy -ocotwnhdnurdnapslua
at the t-xbevao l-l dte) irmp rico r ka. -W-- ?- r-di -ar-eany-4ia?
the Rie shall -o-taeo l-an-Q antdt~ e- h 4R -et de
~ave n Where -o
in. rthat br-o--
-mu t.bear the y ecr yeta ry. To e. .r- -suh itP4--b int-venteircc-of two-or mor-e firmG 11-mt-b by
nuage. .Al1-writteii +ted--xlth-4he -Te-l-
-au exme o- o-.se,.-
il be in the Englich la
+U a 4 A d-A
1.pubilo, in-whieh is defed pr4Diaqrly the
) nditieontradt Dhch.ent- requion th primn of d erma-it,
thpoe ronb proredy th Beprcon san b lgatited o the
partiatinde of the seuerpl Bming tha intr in theo and any other information npc2sary torm any
(3) T ApenxtAill. ef a Ttd iromlthe Tender.
ofte idr fte 19 setutooadal te odtooat forth ir. the
ontr(2) ddcuene hal iencde wich iealiiedpy the Tedder bythe 1nulltwor attchmentary irtdtn ocndgiall eom ent b to rejetio1.4 Data Reuired of Bidders.
(1) Where the Contract Documents require the procurement of permanent equipment, certain data and warranted characteristics pertaining to the equipment proposed to be procured by the Bidder shall be submitted on the forms appended to the Tender for this purpose. Bidders shall enter in the Data to be rurnishedby Bidder (Appendix B to Tender) the dimensions, weights, ratings) warranted characteristics and other information applicableto any and all equipment listed in the Bill of Quantities topbe procured under the Contract. Where the Contract does not include the procurement of such equipment Appendix B will be omitted from the Tender.
(h) Bidders shall include with each copy of their Tender the followIng supplementary information concerning all equipment and materials proposed to be furnished under the Tender:
(a) Name of manufacturer, fabricator or supplier and place
of origin of all equipment and materials to be supplied
for installation in and construction of the tubewells.
(b) Descriptive literature, general drawings, and photographs showing the general arrangement, construction, and outline dimensions of all the equipment he proposes
to furnish, which shall be in sufficient detail to demonstrate
fully that the equipment he proposes to furnish meets all
the requirements of the Specifications.
(c) Material specifications of all principal parts, including
pump housing casing, tubewell casing, and discharge pipe.
(d) Pump characteristic curves showing warranted efficiencies
and capacities at various heads per stage, the effect of the addition of one or more stages on efficiencies, and
pump shaft horsepower requirements throughout the
(e) Motor characteristic curves showing temperature rise,
power factor, load current and horsepower output from
no-load to full-load.
(f) Wiring diagrams and descriptive literature for all components of the motor controls including time-current curves
for the overload relays,
(3) Bidders shall include with each copy of their Tender a detailed list of any and all deviations and exceptions, if any, to the Specifications for the Procui-ement .of Permanent Equipment and Materials, together with a full and detailed explanation of all such deviations and exceptions. Bidders shall also include with each copy of their Tender a list of all Standards and Specifications, if any, which differ from those specified in the Contract Documents, to which the Bidder proposes to conform for all materials and equipment and the fabricating and testing thereof, and shall submit with each copy of their Tender one copy, in English, of any and all such Standards and Specifications to which he proposes to conform. If no such lists of deviations arid exceptions are included with the Tender, the Tender shall be considered to comply in every respect with the requirements of the Contract Documents.
(4) Bidders shall also include with each copy of their Tender the
following supplementary information concerning their proposed organization and plans for undertaking the -work:
(a) An organization chart showing the expatriate and Pakistani
supervisory staff the Bidder proposes to employ in Pakistan
for the execution of the work.
(b) A construction schedule which will show in detail the Bidder's
proposed plan of operation and construction from start to
completion of the work.
(c) A list of the major equipment proposed by the Bidder to
be used in the performance of the work. This list shall
specifically enumerate the number, type, and capacity
of all major items of equipment and the country of its
1. 5 Submission of Tenders.
(1) The rsgshl" a nd ontify tpy ofhth mldend, incluhmn
atle4onsi~ d necemeary or desire to~ and te r prangtoth Th ;e d ncle in helocatin a d nreoe ao forathis prpoes, Th nepd ciie properly terrain tillspotth t id na-n
adddh delr andtere airmail tog
Mr. aydHmd CifEgne
r r t nd ter a n ine portion
any r Wpon t Pya fromthe dt Pr e loymth t AuthtyortheEger
Stmtky-View Estate, IKashnwir Read
onracor heetme n dar gnven in there Neotie or ft Ter t whixchtimnoe Cand place they 1w e opnd iddr fte td tc bl gations conthe
pnin the o aontr .
Tipton. and Kalmbah, -n
Dzxivcr, Gel rade, 8 02 9- U.8. A.
1. 6 Investigation.
(1) Bidders shall determine and s atisfy themselves, by such means as they consider necessary or desirable, as to all matters pertaining to the Tender, including the locations and nature of the work; climatic conditions; the nature and condition of the terrain; transportation and communication facilities; the requirements and availability of labor, water, electric power, gravel sources, roads and all other factors that may effect the cost, duration and execution of the work. The Bidder, by the act of submitting a Tender, acknowledges that he has inspected the site and determined the general characteristics and conditions of the work. The Authority will not assume any responsibility for information, interpretations, arnd deductions the Contractor may make from the data furnished by the Authority or the Engineer. No verbal agreement, or conversation with any officer, employee or agent of the Authority or the Engineer, either before or after the execution of the Contract, shall effect or modify any of the terms or obligations contained in the Contract.
1. 7 Explanation of Documents.
(1) If any Bidder is in doubt to the meaning of any part of the Contract Documents, he may deliver to the Engineer a written request for an explanation thereof, prior to 10 days before the date set for opening of Tenders. The person submitting the request will be responsible for its prompt delivery. Any explanations, revisions, additions or deletions to the Contract Documents will be made only by formal Addenda, duly issued by the Engineer to each person receiving a set of the Contract Documents. The Authority will not be responsible for any other explanations or interpretations of the Contract Documents.
1. 8 Withdrawal of Tender.
(1) A Bidde~r rnay withdraw or eorrect hipa Te-a-dcr Mt any time porl t: t1ho d=At Pat fort receipt of tandeirs upon sub-Miesion0- 4-f a Amprittaft request. 8igned i thes U-Me6 rner aind by thS aaMg personf orp peyaonn YA-ho signed.
2. 1 Scope of Contract.
(1) The Bidder selected for award of the Contract will be required to enter into a formal Contract with the Authority covering the performance of all work necessary for the construction of the tubewells and related work in accordance with the Contract Documents and at the prices bid in the Tender for which the Contract is awarded. The following provisions shall be considered as forming an integral part of such Contract; provided that, where minor deviations or modifications of language of any of the provisions is agreed to through stipulation, negotiation, or otherwise by the Authority and the Contractor, such modifications shall take precedence over the provisions set forth herein; and provided further that where such modifications are incorporated in the Contract, it shall be specifically stated in writing in the Contract Agreement that such is a modification of these Contract Provisions.
(2) The Contract will cover the construction of tubewells and 4ppurtenances and the procurement and installation of equipment either all or in part, and, to the extent specified in the Contract Documents, will embody the drilling of the tubewell; the taking of samples; the furnishing and installing of pump housing casing and tubewefl casing; the gravel shrouding; the development and testing of the tubewell; the construction of the pump pedestal, floor slab, pumphouse and discharge box; the furnishing and installing of the pump, motor, motor controls., accessory electrical equipment, grounding system and wiring; and clean-up of each tubewell site upon completion of the work. The Contractor -shall procure and furnish all the necessary labor, materials, construction equipment, plant, transportation, supplies, fuel, electric power, water and .services; shall be responsible for the construction and maintenance of all necessary construction camps, shops and warehouses; and shall perform all other incidental work, not otherwise specifically stated ,to be provided or done by the Authority, required in and for the completion of the tubewells embodied in the Contract. The Contractor will not be required to guarantee to discover water or to produce any given rate of flow of water from any tubewell drilled on any site selected by the Authority.
2. 2 Intent of Contract Documents.
(1) The Contract Documents are intended to cover all the work to be done. Any and all labor and materials not specifically stated in the Contract Documents, but which are necessary to complete any part of the work in an acceptable and workmanlike manner, shall be furnished by the Contractor, and the cost of all such work shall be considered to be included in the Tender prices.
(2) All deviations and exceptions to the Contract Documents* and
specifically to the Specifications for Procurement of Permanent Equipment and Materials together with the alternative Standards and Specifications to which the Contractor proposes to conform, shall have been listed in his Tender, and any and all such deviations and exceptions that are accepted by the Authority will be made a part of the Contract; otherwise it will be understood and agreed that the Contractor accepts and complies in every respect with the requirements of the Contract Documents, that no further deviations or exceptions will be permitted or accepted, and that all work required to complete the Works is included in the Contract.
2.3 Laws. Rules, and Rewulations
(1) The Contractor is assumed to be familiar with, and at all times shall observe and comply with,-all laws of the Government of Pakistan and local governing bodies that in any manner may affect, control, limit, or apply to the operations and conduct of the Contractor. The Contractor shall be considered as the employer of all personnel whose services he uses in carrying out the work and shall be obligated to comply with all of the provisions of labor legislation in effect or which may be promulgated by the Government during the course of the work.
2.4 Time of Contract
(1) The Time of Completion of the Contract shall be the number of calendar days specified in the Special Stipulations hereof following the "Date of Contract", which date shall be defined in the Contract Agreement. The Contractor shall complete all work under the Contract within the number of calendar days specified in the Special Stipulations, or within such extended period of time as may be granted in accordance with the provisions hereof.
(2) The Contractor will be considered as having taken into account
when submitting his Tender, all hindrances and delays incidental to such work, whether growing out of delays in securing materials or workmen or otherwise, or due to unfavorable or inclement weather, and will not be granted an extension of time on account thereof.
(3) However, if the Contract be delayed at any time in the progress of
the work by "force majeure" duly proven and taken place during the course of the work; by failure of the Authority to furnish rights-of-way at the sites of the work; by failure to provide the Contractor promptly with such materials as it is to furnish; by failure to provide permits, or other documents required for prosecution of the work; by failure to provide advance of funds and letters of credit within the specified time period; by delay authorized by the Engineer pending arbitration on specifications or materials; or by any cause which the
Engineer may decide justifies the delay, then the time of completion will be extended for such reasonable time as the Engineer may decide. In case of unavailability of railway wagons for transport of gravel shrouding, cement, or other materials or equipment, which results in delaying the progress of the work, the Engineer may grant an extension of time, provided that. the Contractor satisfies the Engineer that in spite of all reasonable measures the Contractor was not able to obtain the necessary number of wagons.
(4) No extension of time will be granted the Contractor for delays resulting from suspension of work when such suspension was made because of failure on the Contractor's part to conform to the requirements of the Contract Documents and the orders of the Engineer or for any delay occurring more than 10 days before claim therefor is made in writing to the Engineer. In case of a continuing cause of delay, only one claim is necessary.
2. 5 Force Majeure.
(1) The time of completion of the Contract shall be subject to extension due to "force majeure", such as war, military operations, revolution, strike, lockout, riot, fire, flood, epidemic, and major loss of material and equipment in transport such as may be beyond the control and remedy of the Contractor and makes the performance of the Contract impossible. The term "flood" as used herein shall be defined as the overflowing and inundating of large areas of the terrain by rivers and not from local flows resulting from rainstorms. Cases of "force majeure" will be cause for extension of time for completion of the Work as decided by the Engineer. Request for extension of time shall be given in writing to the Engineer as soon as reasonably possible, but not later than 10 days following the occurrence of the cause of delay. The Enginieer, if he agrees to the extension of time, will confirm the same in writing to the Contractor. The period of extension in the completion time shall not exceed the actual period of delay caused by the "force majeure".
(2) The Authority shall not be liable for any damage incurred by the' Contractor due to any delays in construction or installation due to causes of "force majeure".
(3) If an unavoidable delay due to reasons of "force majeure" continues for a consecutive period of 12 months, the Authority may terminate the Contract. In such event, the Contractor will be paid for all materials and equipment actually supplied and delivered in Pakistan and for all work completed in accordance with the Contract Documents at the unit prices quoted therefor in the Bill of Quantities less any funds advanced to the Contractor for which repayment has not been made. The amount to be paid to the Contractor for any unfinished work will be mutually agreed upon by the Contractor and the Authority.
2. 6 Assignment and Sub-contracts.
(1) The Contractor shall'not, without the consent in writing of the Authority, assign or transfer the Contract or the benefits or obligations thereof, or any part thereof, to any other party.
(2) The Contractor shall not, without the consent in writing of the
Authority, sublet the Contract or any part thereof or make any sub-contract with any person or persons for supply of any major materials and equipment, If the Contractor with such consent sublets any part of the Contract, the Contractor shall be as fully responsible to the Authority for acts and omissions of the sub-contractor and of the persons either directly or indirectly employed by his sub-contractor as he is for the acts and omissions of persons directly employed by him. If any such sub-contractor fails to perform the work undertaken by him in a manner satisfactory to the Engineer, his subcontract shall be immediately terminated by the Contractor upori written notice from the Engineer. Nothing contained in any sub-contract shall create any contractural relationship between the sub-contractor and the Authority.
2.7 Liquidated Damages.
(1) In the event the Contractor fails to complete the work under the
Contract within the period of time for completion specified in the Special Stipulations hereof or such extension thereof as may have been granted, the Contractor shall pay to the Authority the amount stated in the Special Stipulations hereof as fixed and' agreed damages for each calendar day of delay in completion of the work up to a maximum of 10 percent of the -total Tender Price. The Authority may deduct all such fixed, agreed, and liquidated damages from any money then due, or thereafter to become due, the Contractor under the Contract.
2.8 Termination of Contract.
(1) The Authority reserves the right to terminate the Contract by
giving 90 days advance notice of such termination to the Contractor for causes provided by law, and especially for the following:
(a) If the Contractoir violates any of the provisions of the Contract.
(b) If the Contractor's rate of progress is. such that the work
would not be concluded within the time. stipulated.
(c) If the Contractor declares himself, or is declared, as
dissolved, liquidated, bankrupt, or in arrears, if he
merges with another company, or if he cedes, assigns,
transfers, or sublets the Contract benefits or obligations or any part thereof as aforesaid without previous authorization of the Authority.
(2) Unless the violations or failure to promptly perform which are cited as cause, shall cease or arrangements for removal of the cause be made, to the satisfaction of the Authority or Engineer, within 10 days of such giving notice to the Contractor, the right of the Contractor to proceed with the work hereunder shall terminate at the end of the 90-.day notice. In the event of any such termination, the Authority will immediately serve notice thereof upon the Surety for the Performance Guarantee, and the Surety shall have the right to take over and perform the Contract. However, if the Surety does not commence performance thereof with satisfactory progress within 30 days from the date of notice of termination to such Surety, the Authority may take over the work and prosecute the same to completion by such means as it shall deem best on the account and at the expense of the Contractor. The Contractor and his Surety shall be liable to the Authority for any excess cost occasioned the Authority thereby, and in such event the Authority may take possession of and utilize in completing the work, all materials, plant, and equipment of the Contractor that may be on the site of the work and necessary therefor.
(3) The Authority further reserves the right to terminate the Contract at any time after the expiration of the time for completion including such extensions of time as may have been granted in accordance with the Contract Documents by giving 10 days advance notice of such termination to the Contractor, and at the end of the 10-day notice the right of the Contractor to proceed with the work hereunder shall terminate notwithstanding any other provisions or requirements of the Contract Documents.
2.9 Certificates of Acceptance and Completion.
(1) The Contractor shall give the Engineer notice not less than 24 hours in advance of the anticipated date of the operation and acceptance test of each tubewell. Upon completion of the operation and acceptance test to the satisfaction of the Engineer, including the completion of all work under each and every Item of the Bill of Quantities for each tubewell, the Engineer will accept the tubewell, and at the end of the month following, will issue to the Contractor a Certificate of Acceptance for the entire tubewell. The Certificate of Acceptance will certify the date upon which the entire tubewell is accepted. This date shall be the date upon which the Contractor will be relieved of further responsibility for the tubewell, provided however, that the issuance of a Certificate of Acceptance shall not operate to waive the Contractor's liability for defects in the equipment as set forth in Clause 2. 22 hereof.
(2) Upon the completion of all work to be performed under the Contract, including the completion of all work under each and every Item of the Bill of Quantities, and upon having satisfactorily passed all tests and inspections, all to the satisfaction of the Engineer, the Engineer will accept the Works and issue a Certificate of Completion to the Contractor. The Certificate of Completion will certify the date upon which all of the Works have been accepted, and the
Authority shall be deemed to have taken over the Works, on the -date so certified, provided however, that the issuance of a Certificate of Completion shall not operate to waive any of the Contractor's obligations under the Contract;
2. 10 Arbitration.
(1) In the event of any question or dispute arising under or in connection with the Contract, the same shall be referred to the award of a sole arbitrator agreed to by both the parties or, failing such agreement, to the award of two arbitrators, one to be nominated by the Contractor,' and one to be nominated by the Authority, or in case of the said two arbitrators not agreeing between themselves, then to the award of an umpire to be appointed by the said two arbitrators in writing before proceeding on the reference. The decision of the sole arbitrator, or as the case may be, of two arbitrators or, in the event of their not agreeing, of the umpire so appointed by them, shall be final and binding on the.parties. The provisions of the Arbitration Act, 1940, and of the rules made thereunder, and any statutory modification thereof, shall be deemed to apply to and be made a part of the Contract. Reference to arbitration as provided herein shall be a condition precedent to any other action at law.
(2) Upon every and any such reference, the assessment of costs incidental to the reference and award respectively shall be at the discretion of the sole arbitrator, the two arbitrators, or the umpire, as the case may be. Work under the Contract shall, if reasonably possible, continue during the arbitration proceedings, and no payment due to or from either party by or to the other, shall be withheld on account of such proceedings.
2. 11 Quantities of Work.
(1) The number of tubewells of various capacities and heads as well as the other quantities of work shown in the Bill of Quantities (Appendix A to Tender) are approximate only, and the actual quantities of work performed and equipment furnished and installed under the Contract Documents may vary considerably therefrom. The Authority reserves the right to make changes in the location of the tubewells, to omit any tubewell and to increase or decrease the number of tubewells as may be determined to be necessary or desirable, except that the number of tubewells actually constructed under the Contract shall not differ from the number of tubewells stated in the Contract Agreement by more or less than the amount stated in the Special Stipulations hereof.
(2) As the work proceeds, actual quantities of work performed will be determined in accordance with the various criteria for measurement of Quantities set forth in the Specifications. ~ Payments to the Contractor will be based on the actual quantities of work performed and the unit prices set forth in the Bill of Quantities, and the Contractor will not be entitled to any adjustment in the unit prices on account of any increase or decrease in the actual quantities from the estimated quantities set forth in the Bill of Quantities. 3-31-65 STD
2.12 Changes in Work.
(1) The Engineer may, at any time during the course of the work by written instructions to the Contractor, make changes in location, capacities, or number of tubewells, subject to the limitation set forth in sub-clause
2. 11 (1) hereof, or in levels, lines, grades and dimensions of the tubewells and the appurtenant works and structures. The Contractor shall not make any changes in the work except in accordance with such written instructions from the Engineer; provided that the Engineer may issue such instructions orally and confirm them later in writing. Such changes, including increases or decreases in the estimated quantities set forth in the Bill of Quantities as determined by measurement of the work actually accomplished, shall not require issuance of a Change Order.
(2) The Engineer may at any time during the course of the work make modifications in the form, quality or quantity of the work, or any part thereof, as follows:
(a) Change or modify the quality or quantity of any kind or
part of the work.
(b) Substitute work of any kind or amount in lieu of any work
of any kind specified herein.
(c) Require additional work of any kind, quality or quantity.
(d) Omit or delete work of any kind.
To make any modifications to the work as specified in this sub-clause, the Engineer will issue to the Contractor a written Change Order which shall specify the change, modification, substitution, addition, omission or deletion in the quality, quantity and kind of work to be performed under the Change Order. Prior to the issuance of the Change Order, the Engineer may issue to the Contractor written instructions to immediately proceed with such modification in the form, quality or quantity of the work as may be required, and the Contractor shall then immediately proceed with the work. The Contractor shall not make any modifications in the form, quality or quantity of the work as set forth in this sub-clause except as .specified herein.
(3) Any increase or decrease in the estimated quantities set out in
the Bill of Quantities, subject to the limitations set forth in sub-clause 2. 11 (1) hereof, ascertained by measurement for purposes of payment does not constitute a change requiring the.issuance of a Change Order.
(4) All work done, or omitted, pursuant to a Change Order shall be valued at the unit prices set out -in the Bill of Quantities if, in the opinion of the Engineer, the same shall be applicable. If the Bill of Quantities does not contain unit prices applicable to such work, or, if by reason of any Change Order the unit price contained in the Bill of Quantities for any item is, in the
opinion of the Engineer, rendered unreasonable or inapplicable, then a suitable unit price shall be agreed upon between the Engineer and the Contractor, or in default of agreement shall be fixed by the Engineer. No Change Order shall in any way vitiate or invalidate the Contract.
2. 13 Contractor's Employees.
(1) To accomplish the work embodied under the Contract, the
Contractor shall, to the extent possible, employ Pakistani personnel, selecting them on the basis of their competency, efficiency, and skill in the various occupations and trades. The Contractor shall have the right to employ specialized foreign personnel for key positions in his organization according to the organization chart submitted with his Tender. The Engineer shall have the right at any time to require the Contractor to remove from the work any of his employees who, in the opinion of the Engineer, are incompetent, careless, insubordinate, disorderly, or dangerous; or whose continued employment is contrary to the best interest of the Authority; or whose conduct has brought them in conflict with the governmental authorities.
2. 14 Cooperation with Other Contractors.
(1) The Authority reserves the right to let other contracts in connection with, or related to the work to be done under this Contract. The Contractor shall cooperate with all other contractors of the Authority who may be performing other work at or in the vicinity of the work covered by the Contract Documents, and shall conduct his operations so as to interfere to the least possible extent with the work of such other contractors.
(2) Any differences or conflicts which may arise between contractors in regard to the work will be adjusted by the Engineer. When the work of two or more contracts is being executed at one time in such a manner that work on one contract may interfere with that of another, the Engineer shall decide which contractor shall cease work and which shall continue, or whether the work on both contracts shall progress at the same time and in what manner. In all matters relating to cooperation with other contractors, the decision of the Engineer shall be final.
2. 15 Contractor's Program.
(1) Not later than 30 days following the date of the Contract, the
Contractor shall submit to the Engineer for approval the program which the Contractor intends to follow in carrying out the work under the Contract with respect to construction of the tubewells and appurtenances and for the procurement, delivery and installation of the equipment. The construction
schedule shall be complete and in sufficient detail to indicate the starting and ending dates of each operation and the sequence in which the Contractor proposes to conduct the various operations involved in construction of the tubewells and appurtenances. The equipment schedule shall indicate the sequence of procurement and manufacture and the anticipated dates of completion, shipment, delivery, and installation of the major items of equipment.
(2) The Contractor shall prepare and submit to the Engineer revised construction and equipment schedules at least every three months during the, period of the Contract, or at lesser intervals when so required by the Engineer. The progress of the construction, manufacture and installation of the various items of the work shall be indicated in the revised schedules, together with any revisions proposed to be followed for the completion of the work.
(3) The Contractor shall provide the necessary personnel and
equipment and shall work an adequate number of hours per day in order to ensure that the performance of the work is completed in accordance with the approved schedules. Whenever delays in the performance of the work are encountered, the Engineer may require an acceleration in the rate of construction and manufacture and installation of equipment in accordance with the established schedules submitted by the Contractor and approved by the Engineer.
2.16 Lands and Rights-of-Way.
(1) The Authority will provide all necessary lands, rights-of-way, and free access to each tubewell site and will negotiate and pay the cost of rights-of-way and compensation for all unavoidable damage to crops, land, and other property. The Authority will also obtain, where necessary, permission to cross roads, railways, rivers, canals, power and communication lines, and will pay all crossing charges. The Contractor shall take all reasonable precautions to avoid damage to crops, gardens, and all other property during construction of the tubewells. The Contractor shall be responsible for all damages to any property due to his negligence or carelessness and for all damages outside the limits of lands and rights-of-way furnished by the Authority.
(2) The Authority will also provide, without charge, reasonable and sufficient lands and access thereto for the Contractor's warehouses, storage yards, offices, and camps. All use of land by the Contractor within the rights-of-way and on lands provided by the Authority for construction purposes, camp facilities, storage areas, or access thereto shall be subject to the approval of the Engineer. The Contractor shall make all necessary arrangements with the owners and shall pay all rentals or other costs for all land and facilities desired by the Contractor which are not provided by the Authority.
(3) The Contractor shall perform such work as may be required in
constructing, improving, repairing, or maintaining any road or structure used in the performance of the work under the Contract Documents, and the Authority assumes no responsibility for the condition or maintenance of any road or structure that may be used by the Contractor. Roads subject to interference by the work shall be kept open, or suitable detours shall be provided by the Contractor. Where the Contractor finds it necessary or elects to use existing canal roads the Contractor shall make all necessary arrangements and obtain all permits from the Irrigation Department of West Pakistan for travel over and use of such canal roads. -A katarxa-gA-t
mntb&ll an epartmen1 The Contractor
shall observe all rules and regulations of the Irrigation Department regarding the use of said roads and the use of all canal roads shall be subject to the approval of the Engineer. Ths-c--e-t A 8nd aintenance of anal
roao wic, i te-.piionofthoErg4neearcdot nthse-.,rdntu-orr~gnre by the chre oteCn
treer h eee-9saTrYL safot 5--- a-urc and temporary
structures an n1Mk~nj-
oceary repalrr, repJ.act~
by the Contractor1
2.17 Supervision and Inspection.
(1) The Engineer, or his authorized representative, will be the official agent of the Authority in all matters relating to the technical supervision of construction of the tubewells and appurtenance.s and procurement and installation of the equipment. The Engineer will have the authority to require the Contractor at all times to abide by the provisions of the Contract; to supervise the work to the end that the different parts thereof conform strictly with the Contract Documents, including the Specificatibns and Drawings; and to determine the quantities of work satisfactorily performed and completed. The Engineet will supervise constantly each and all of the different features of the work, including the quality of the materials, labor construction operations and equipment installation and the adequate performance and operation of construction equipment.
(2) Inspectors, who are representatives of the Engineer, will be
appointed to inspect all work. The inspectors will not be authorized to revoke, alter, enlarge, or relax the provisions of the Contract Documents nor to delay the fulfillment of the Contract by failure to inspect the work, materials, and equipment with reasonable promptness. Inspectors will be placed on the work to keep the Engineer informed as to the progress of the work and the manner in which it is being done; also to call the attention of the Contractor to any nonconformity with the Contract Documents. They will not be authorized to approve or to accept any portion of the work, to issue instructions contrary to the Contract Documents, or to act as foremen for the Contractor. The
inspectors will have the authority to reject defective material, workmanship or equipment and to suspend any work that is being improperly done, subject to the final decision of the Engineer.
(3) The Engineer and all members of his staff shall have free access to any part of the work in progress or completed, as well as to the construction plant and equipment, the storage areas, installations, and offices of the Contractor, 'the sources of material, and all other places or areas occupied by the Contractor in connection with the work. The Contractor shall make available to the Engineer and all members of his staff all requested information, data, documents, reports and vouchers.
(4) The Engineer will establish the location of each tubewell, and will furnish any explanations, directions, stakes, or markers as are necessary to carry out and complete the work contemplated and provided for under the Contract Documents.
2. 18 Trarisportation and Shippinj.
(1) The Contractor shall take all reasonable care and precautionary
measures in handling, transportin,, and storing of material and equipment, and shall suitably insure it against all risks. The Contractor shall be responsible for the preparation 6f all equipment and materials for shipment in such a manner as to protect them from damage in transit and shall be held responsible for all damage due to improper preparation for shipmenrit or in transit. The Contractor shall prepare a suitable register in a forn approved by the Authority in which he shall enter the cost of all materials and equipment, if any, imported into Pakistan under the Contract. The register shall show the quantities of the various items of equipment separately, and shall be kept posted up-to-date.
(2) The Authority will provide all reasonable assistance to the Contractor in obtaining necessary railway wagons for transport of cement, gravel, and other materials and. equipment required in connection with the Contract.
2. 19 Permits, Visas and Licenses.
(1) The Authority will, upon application from the Contractor, provide reasonable assistance in obtaining the prompt issuance of all necessary import permits, visas for the Contractor's foreign personnel, permits for the release at controlled prices of those supplies which are subject to any statutory controls, and priorities and permits for the movement of all supplies, machinery and materials to be transported by the Contractor by railway. The Authority will, upon application from the Contractor, also assist in obtaining proper import licenses or permits for the importation into Pakistan of all-equipment, materials, and supplies which are to be permanently incorporated in the tubewells and appurtenances.
2.20 Patents and Copyrights
(1) The Contractor shall hold and save the Authority, its
officers, agents, and employees harmless from liability of any nature or kind, including costs and expenses for or on account of any copyrighted or uncopyrighted composition, secret process, patented or unpatented invention, article, equipment, or appliance manufactured or used in carrying out the construction of tubewells and appurtenances and the procurement and installation of equipment under the Contract.
2.21 Operation of Unsatisfactory Equipment
(1) If, after installation, the operation of any equipment. proves to be unsatisfactory to the Authority, the Authority shall so notify the Contractor immediately; but the Authority shall have the right to operate and use the equipment until the unsatisfactory items can be taken out of service for correction of latent defects, errors or omissions, without detriment to the Authority. The Contractor shall not be responsible for further deterioration to the equipment because of such use unless the Contractor is notified of the defect within 5 days of the discovery of such defects. However, the period of such operation or use pending the correction of latent defects, errors or omissions shall not exceed 12 months from the date of the Certificate of Acceptance for each tubewell.
2.2 Equipment Warranties
(1) The Contractor shall warrant that all equipment procured
and installed in the permanent works under the Contract will be of the highest grade, consistant with the established and generally accepted standards for equipment of the type specified in the Contract Documents and approved designs and drawings, and that it will fully conform to the characteristics, efficiencies and other data set forth by the Contractor in his offer.
(2) In the event that any equipment is found to be defective in design, function, material, or workmanship, or does not otherwise meet the requirements of the Contract Documents, including errors or omissions
on the part of the Contractor, the following shall apply:
(a) Any defects in materials or workmanship or other
failures to meet the requirements of the Contract
Documents, including errors or omissions on the
part of the Contractor which are disclosed prior to final acceptance, shall be corrected entirely at the expense of the Contractor as directed by
(b) Any latent defects not disclosed before the date of
the Certificate of Acceptance, whether due to
inadequate design, manufacture, materials or workmanship, or for any other reason, shall upon the
request of the Authority, be corrected promptly by Al
the Contractor entirely at his expense. However, the total period during which the Contractor will
be liable for replacements due to latent defects shall not exceed 12 months after the date of the
tubewell Certificate of Acceptance. The Contractor
shall not be responsible for defects in function
which are the result of improper or inopportune
maintenance practices. The decision regarding the
most probable cause of defects shall be with the
Engineer and his decision shall be final.
(3) The Contractor shall secure on behalf of the Authority
written warranties in a form satisfactory to the Authority from the manufacturers of the pumps, motors, motor controls, and accessory electrical equipment furnished by the Contractor under the Contract, that said manufacturers will furnish and deliver to the Authority upon placement of a purchase order any and all spare parts for the
equipment furnished by them without prejudice and on the same terms, conditions, and prices that said spare parts are offered on the market to all other prospective buyers. These warranties shall be furnished within 90 days following the date of the Contract and are to remain in force as long as the said manufacturers shall remain in business.
FINANCES AND PAYMENTS
2.23 Performance Bond
(1) The Contractor shall furnish a Performance Bond satisfactory to the Authority within the period of time and in the amount set forth in the Special Stipulations hereof to guarantee the completion of the work and faithful compliance with the requirements of the Contract Documents, including time of delivery of all equipment.
(2) The Performance Bond shall be issued by a banking or
insurance institution acceptable to the Authority and registered in Pakistan or in any foreign country. The duration of the Performance Bond shall extend from the Date of Contract to 12 months beyond the date of issuance of the Certificate of Completion, on which date the Authority will cancel the bond and return it to the Contractor. The conditions of validity of the bond shall depend exclusively upon the performance of the contractual obligations.
(3) The amount of the Performance Bond shall be reduced each
and every 90 days following the Date of Contract by an amount bearing the same proportion that the number of completed tubewells accepted during the period bears to the Total number of tubewells specified in the Contract Agreement until the amount of the Performance Bond is reduced to 20 per cent of its original face value.
(1) The Contractor shall indemnify and save harmless the
Authority against all suits or actions of any kind and nature brought, or which may be brought, against the Authority for, or on account of, any injuries or damages received or sustained by any person, firm, or corporation in connection with or on account of the Contractor's work under the Contract, or by, or in consequence of, any negligence in connection with same; or on account of the use of any improper equipment; or on account of any poor workmanship; or on account of any act of commission or omission by the Contractor or his, its, or their agents, servants, or employees; or for any cause arising out of the performance of the Contract. All insurance for this purpose or any other purpose under the Contract shall be in accordance with the laws of Pakistan.
(2) The Contractor shall secure and maintain at his own expense, without cost to the Authority, until final acceptance and payment by the Authority for all work covered by the Contract, adequate insurance to protect the Authority against all such claims, suits, or actions.
(3) The Contractor shall secure and maintain during the life of the Contract all required workmen's compensation insurance for all his employees in accordance with the laws of Pakistan. The Contractor shall comply with all laws of Pakistan relating to social benefits,
and shall secure and maintain such insurance as may be required by said laws.
(4) In the event of any claim being made against the Authority for which the Contractor is liable, the Authority will promptly notify the Cont'ractor:i who shall, at. his ownrisk and expense, undergo all negotiations of the settlement of the claim and any -litigation that may arise therefrom. The Authority will, at the request of the Contractor, provide all available assistance possible, and shall be repaid by the Contractor for any expense incurred by the Authority in so doing.
2.25 Advance;-*fFunds to the Contractor and Repayment
i-i, '11~rr ~ri ~t--- -r rr-~ ffflTj ~T ~~~r
&9 eeptanee ef theo FAI 11. Bo
-the Authoritywill-advanee fu in, eliunts eaiuala to.
!kft Resto the- iff
with cawese 4I h;~aiof, 68V in PakiiAtan AAP*0
(a)3313 pro~toftot ef orciI whish is to be
~a~bfhed in" pccordian with 9ubeolemse (2)f(&) "f this
()30 perent 'of the 40%&al P-ortion i Reipass -sheaf dna
Cclun 9:f he* Bill1 of- quanfaitbie.
filueh funds w0ll be jlho;a at theti: dpascal of the.Centraeiior in a 'kistst ba a k tia ia- seleted-by the Cnt~rastor and aepjGptablo tc th Auhriy for the gh~ro~ t 4 A W tu~ .l penetruoetlon equipment anad PIGSIt;of*
th i- ermont ef porgetnt equipment t: o Installed4 in t~i *hM "110 o "nd far Garyinfts the wont to be performed by the Centraetor under
(2) Within 30 de,78 Pf the Dato af GA14ta;, ih: Autblority Will, arrange for the ecrilshoti aaica bk.to be seleeted by the
an"6i000 wAirpt-1,T to the Ant~herAtvr. of twon Arrpaqaable mand
al ~ ~ ~ ~ : -otro rdtin Cavor, of- the
A' Letter of Cr6dit (Letter ecf GCrzdit 1) in Pahista PtRatea it inamnnt armaJ to 400jaserceat at the ----
fer6zig" :urroen ny ZL1-apc or Barter) oponent af tho: tta 9oip~ eto the Contract asishdiaw
on the -il oft b0uaffititioea for tho vuris af
flnnongthe procurement of el qimn, maeril
&nd eor~ioe_ froPM _acaa and all-3 other 1%90 rup*4.
*0086t0 of th: Contrast. The Letter of'Crcdlit ohala:
ft I - ^
p:iethat the x bo4 authE
upor te 1iqdat lf theii
Wine& to aumce subeeqfteM .peoent 0f the igla'f & f, th inia.udnc ~i tal md9 .4ok a ,uhMAG 0 Q440
Th~ipo~o i ~n am4;0 IM~a t1vpercent of theRwpoe agalpeost ofterbttl2tfxhIn theTu~oollDil ofQuatities for tho PreOuRAPMON6 OfS Equipent. The Letter of, Credit Will prov5.i ha
thebam beAuthor goa to Make amet to. tba
&g jsay ho re~ui~ by the Am'ort~
(3) Buno from _t*4c Ltter sof Gredit astabliebed tmJdor subelaugs#
(2()of .this Clamas eballe kc t~iGiuon forp thupayment ofhe O
as1U of----Spot& rmP~trtan to zugolvi ndrt: cmoan
aid Tugslavia Mader wbtoh barter pa"Glae tim fo work doe maderti
Loto4 ofO~eito~li be eaeverted.it oe~sres or YoMitto
outai~~~e .6itn. I he eve*ft. that, vpjon seari.ctill of, thoCstreet,
the ~ ~ ~ tO tam o ~ue t-ofthe work i tr4n-t be "isus th-&th ao~n uilrzdby t&bnroti fwte purohbsI3 and port *f
baito good frctPaldtftn, the balano fte otro Cel h
berefuaded by thi %ntrsao'tor to the !Auto4A#i oe~m crrny materia of. oolk"o &a rod us"n.
(j)Depymet f fMAdm a*&U-eA to the- %ntrtr 'Thuus&* t=o
the. pro iciflo f S b~luO (4-) of ;tbi Clgffia Will be Mktde a f eos
pShl; --a--ffeetd by deduetifig fPromN* cash a ve'r
.mosthy -pyent made to the '4-30@tY,19 aaieaomm
equal to 00 peoont of. th- totalr Ropes& fo 1 Brt**r
amout Aof top %unds advonoe 9a -e-n rc-nd *be $%I&
frvom Ltter Wf Crdit -*sh#tb .foteA b dcti
frm each and oery mZothlyt payeAt MA to ther
Cont ra* tor a nem q.lt 0 ee of he 40681r exent ue nde Potio i~Dp.s pay*mn t op
mde pail, h A. b%10p~ ot;~toi~
d a duo 44 -4b) of hic 2ausosal bmdeb
4.-t-he-CO-tact-r n a'ut-zutlt 5 eon
-d hCntreats for
.wi-hItem -10 ad al~lltn Itcm3 oi~ IIhe~ A
0il r Qu ant 1tico.
furnis h to ,-A+ the ~thry +i0lt 0.0d acetbe ot WAtho-rity<
guarnteeins tha faith.+1ful ard _r-t ue Of fund avanced-. T fidelity s hal ilaws d
(1) to th r t4: fr te fundoAd bye ead
rativr l il and mayd by ucd in U2au oary 90rdays b# OAwuat* equal t the of pynuder the Contrato -ain
theriacdi 90 darein andeo ined whthSecbfiause an eli)(ar an
2.27 C of P ment
(i) Measurement of the work performed and completed by the
Contractor will be made by the Engineer, or his authorized *Opr*801&attiv*i for the purpose of payment under the Contract in accordance with the criteria Bet forth herein and in the Specifications and elsewhere in. the Contract*Documents. All measurement of the work will be recorded on inspection reports which will be'signed as being correct by the person making the measurements and countersigned by the Engineer. 'The Contractor or his representative shall certify his acceptance of the measurement of the work as corz-ect by signing each inspection report.
(2) Payments for the work performed and completed by the
Contractor will be based on actual measurement of the work completed.
Payment will be made for each Item in the Bill-of Quantities At the unit price bid in the Bill of Quantities for the appropriate Item. The amount bid and paid for under each Item of the Bill of Quantities shall be full payment for all work specified under that Item of the Bill of Quantities as described in the applicable section of the Specifications and as shown on the Drawings.
(3) Payment to the Contractor for work completed in accordance with the Contract will be made by two separate payments for each tubewell as follows
2/6/65 C-I7 At
(a) Upon certification by the Engineer of completion
of all Items in the Bill of Quantities under
"Construction of Tubewtlls" for each tubewell,
the Authority will pay to the Contractor the total amount due the Contractor for work completed under
"Construction of Tubewells", based on the unit
prices bid therefor in the Bill of Quantities and
the actual quantity of work performed.
(b) Upon completion of all work under each and every
Item of the Bill of Quantities for each tubewell
and upon issuance of the Certificate of Acceptance therefor, the Authority will pay to the Contractor
the total amount due the Contractor for work
completed under "Construction of Appurtenant Features"
and Procurement of Equipment" based on the unit
prices bid therefor in the Bill of Quantities and the
actual quantity of work performed.
The total amounts due to the Contractor as determined in accordance with this sub-clause will be reduced by the amounts owdd by the Contractor to the Authority for repayment of the funds advanced and funds expended through Letters of Credit pursuant to the provisions of Clause 2.25 hereof.
(4) The Contractor shall prepare and submit to the Engineer at the end of each month a statement in such form and number of copies as the Engineer may prescribe showing the amounts to which the Contractor considers himself to be entitled as payment for work completed during the month. The Engineer shall examine each such monthly statement and shall certify the amount of payment to be made to the Contractor after first deducting amounts due the Authority for repayment of funds advanced to the Contractor in accordance with sub-clauses 2.25 (4) and
2.25 (5) hereof. Payments will be made to the Contractor by the Authority within 30 days of the Contractor's submission of each monthly statement to the Engineer.
(5) The Contractor will not be paid anything on account of anticipated profits from the work or any portion thereof which is not actually performed, nor will the Contractor be paid more than the unit price bid for any item of the Bill of Quantities because the actual number of tubewells or quantity of work is greater or less than the number of tubewells or quantity of work shown in the Contract Documents.
2.28 Import Duties and Taxes
(1) The Authority will pay or reimburse the Contractor for the cost of all import duties, sales, excise, or other taxds levied by the. Government of Pakistan, or local authorities in Pakistan, on. equipment materials, and supplies required to be secured from abroad and imported by the Contractor into Pakistan which are necessary for the prosecution of the Contract, except for food stuffs, liquor, tobacco, and household furnishings and supplies or personal items for the Contractor's personnel. Reimbursement to the Contractor will be made in Pakistan Rupees. The Contractor shall submit to the Engineer after the end of each month a detailed account of the amount of import duties, sales, excise and other taxes paid by him during that month for which he considers that he will be entitled to reimbursement. Such detailed statement shall be accompanied by receipted invoices and such other documentation as the Authority may specify.
(2) The.Contractor, upon completion of the work may, at his
option, either export from or retain in Pakistan any or all equipment,
materials or supplies secured from the interior -or imported by the Contractor into Pakistan for the purpose of or in connection with the Contract which become surplus or which are not expended or incorporated into the permanent works. In case the Contractor exports from Pakistan within 15 months following the date of issuance of the. Certificate of Acceptance for the last tubewell any equipment, materials or supplies for which the import duties were paid by the Authority, the Contractor shall, in consultation with the Authority, claim refund of all such import duties, upon such export, and the credit for all sums received as drawback on such import duties shall be repaid to the Authority. In case such equipment, materials or supplies for which the import duties, sales, excise and other taxes were paid by the Authority upon import by the Contractor and which are not expended or incorporated into the permanent works, are not exported from Pakistan nor used in or on a subsequent Authority project, within 15 months following the date of issuance of the Certificate of Acceptance for the last tubewell, the Contractor shall pay to the Authority an amount equal to the import duties, sales, excise and other taxes originally paid by the Authority on all such equipment, materials and supplies.
(3) The Contractor, within 30 days following the Date of
Contract, shall execute a bond, or bonds in favor of and acceptable to the Authority in the full amount of all import duties, sales, excise and other taxes paid by the Authority, guaranteeing repayment to the Authority of all such import duties, sales, excise and other taxes, in the event that equipment, materials and supplies which are not expended or incorporated into the permanent works are not exported from Pakistan nor used in or on a subsequent Authority project, within 15 months following the date of issuance of the Certificate of Acceptance for the last tubewell.
2/6/65 C-19 H-R
2.29 Provisions of Particular Application to Contract No, 3.107
1. The Time of Completion of the CONTRACT shall be 600
calendar days following the Date of CONTRACT.
2. The amount of Liquidated Damages shall be Rl,OO0
3. The amount of the Performance Bond shall be in U.S.
Dollars in an amount equivalent to 20 percent of the
Tender Price. The Performance Bond shall be
submitted to the AUTHORITY not later than 15 days
following the Date of the Contract.
4. The number of tubewells to be constructed
CONTRACT shall not differ from the number in the CONTRACT AGREEMENT by more than 10
less than 10 percent.
set forth percent or
DESCRIPTION OF PROJECT AND WORK
3.1 Location of Project
(1) The Ground Water and Reclamation Program Project No. 3
(Lower Thal Doab), of which the Alipur Unit is a part, is situated in the former Punjab area of West Pakistan in the northern half of the Indus Valley. The Indus Valley is a vast alluvial plain, varying in width from 100 to 300 miles and extending some 800 miles from the foothills of the Himalaya Mountains to the Arabian Sea. Topographically the valley is virtually flat, having a gentle slope of about one foot per mile in the direction of the flow of rivers toward the sea. The Indus River flows near the westerly limits of the valley and within the region flow four of the major tributaries of the Indust the Jhelum, Chenab, Ravi and Sutlej Riviers. The soil are fertile and much of the land of the Indus Valley, including areas in which tubewells are to be constructed, is irrigated by some of the largest irrigation systems in the world*
(2) Varachi is the largest city, with a population of about two
million, and the only seaport of West Pakistan. Lahore, the headquarters of the Authority anda city of about one and one-half million inhabitants, is situated about 750 air miles northeast of Karachi at an elevation of about 650 feet above sea level. The present seat of the Central Government of Pakittan is at Rawalpindi, about 150 miles north of Lahore. The general area of the Project is served by both roads and railways from Karachi, Lahore and other centers.
3.2 Desortiion of Uni
(1) The southern half of Thal Doab, which is embodied in Ground Water and Reclamation Program Project No. 3, has been divided into a number of areas designated sub-projects and units. The Alipur Unit encompasses roughly the area of about 400,000 acres at the tip of Lower Thal Doab south of the town of Kinjar Khas commanded by the Musaffargarh Canal System. The area is bounded on the west by the Indus Rivier and on the east by the Chenab and Panjnad Rivers. The general location of the Unit is shown on the Drawings. Most of the lands embodied in the Alipur Unit are now irrigated with canal water supplied by the Musaffargarh canal system as shown on the Drawings. In general, the tubewells will be located alongside, or in the vicinity of, distributaries$ branches, minors, and lesser canals of the irrigation systems, and spaced at intervals varying from approximately one-quarter to two miles apart.
3.3 Oliuatolodocal 1Data
(1) The Alipur Unit is situated at elevations of about 400 ftot above sea level. The climate is hot, except during the winter months of November to Fabruawy. Annual precipitation varies from an average of approximately 10 inches in the vicinity of Triwa to 4 ItAhes in the vicinity of the southern tip of the Doab. however the amount of rain occurring in individual years may vary between wide limits. Most of this precipitation generally occurs during the monsoon rains of July and August.
(2) Temperature and precipitation data. recorded at the weather
stations at Leiuh, Alipur, and Muzaffargarh are indicated in the following table s
TEMPERATURE AND RAUFALL DATA
an Monthly Ar
Temperature At Mean Monthly Rainfall at
--IA- AM4muR. rS AMAL
Monthmaz e M (Inches) (Inohes)
January 68.4 34.8 0.24 0.32
T.bruar 41 44#.7 0.31 0.32
March 7 1 5,0 0.24 .4
April 96.6 66.7 0.22 0.21
May 106.9 7467 0.16 0.33
June 111.0 82.1 0o30 0.24
July 103. 83.8 1.76 1460
August ioi.4 82.9 1.42 1.66
September 100.2 76,4 0.39. 0 6
October 96.6 61.4 0,06 0. +
November 044 '9.3 0.03 0.12
December 73.7 0,25 0.30
TOTAZa 5.38 6.33
(1) All of the tubowelle will be situated in the Indus Valley Alluvium which consists, in general, of Li eato dum. grained sand of much. greater depth than the depth of penetration of the tubewell. In general, the upper-most part of the forvAtion in composed of fine aind, silt, and clay with coarse sand being more cam only found at increasing depth. The entire formation is interapereod with ocoaxional bods or lenses of silt and clay. Within the areas where the tubewells are to be constructed, the present ground water surface ien at depths vArying from a few feet up to 20 feet below the ground ourfac.
(2) The Authority does not guarantee that the material will be as described herein, nor the correctness of any interpretations, deductions, or conclusions indicated relative to subsurface conditions.
3.5 Pescription of Tubewells
(1) The tubewells are to be constructed as a means of lowering the level of the ground water within the area, as well as supplying supplemental water for irrigation of lands which are now served with canal iater supplies. Each tubewell will have a minimum design discharge capacity determined on the basis of the culturable area under its command and the canal supplies available to the area.
(2) Al tubewells are to be drilled with reverse circulation rotary drill rigs. The diameter of the drill bit and the total depth of the tubeells will vary depending upon the capacity of the- tubewell and the materials encountered. An accurate drilling log of each tubewell is to be made, and samples taken of the materials through which the tubewell is drilled.
(3) Upon the completion of drilling, blank and slotted fiberglasis tubewell easing sections, either 8 or 10 inches in diameter, are to be placed in the tubewell for the specified lengths. Steel pump housing casing is then to be connected to the tubewell casing by means of a asnoentria tapered reducer and installed in the tubewell. The pump housing casing is to be 14 or 16 inches in diameter, depending on the aite of the pump to be installed.
(4) After installation of the pump housing and tubewell casing, the tubewell is to be shrouded (packed) with selected gravel, varying in sime from No* 16 to 3/8-inch. The tubewell is then to be developed and tested until it will efficiently produce clear water at a pumping rate of 150 percent of the design capacity. When the tubewell has been satisfactorily developed and tested, a concrete pump pedestal and floor slab are to be constructed. Each tubewell is to be equipped with a deep-well, vertical turbine pump, direct-connected to a vertical, hollow-shaft motor. All motor controls and accessory electrical equipment are to be installed and connected and the equipment placed in operating condition and tested to demonstrate that the entire installation meets the requirements of the Contract Documents.
(5) A brick masonry pump house with removable roof is to be constructed to house the pump, motor, motor controls and accessory electrical equipment, and a brick masonry discharge box is to be constructed at the outlet of the pump discharge pipe.
(6) The connection of the electric equipment to the power source, and construction of facilities to convey water from the outlet of the discharge box to its point of use are not a part of this Contract.
3.6 Number and Sizes of Tubewells
(1) The capacities of individual tubewells will vary from two
to five cusecs each in one-cuseC increments. -It is anticipated that the total depths of the tubewells will vary from 170 feet to 400 feet with an average of between 250 feet and 300 feet. The pump housing casing will extend approximately 50 to 80 feet below ground surface. Pump Total Head will vary from approximately 40 to 70 feet, and the horsepower rating of the pump motor and the motor controls will vary with the capacity and pump head established for each tubewell. The approximate number of tubewells to be constructed for the various capacities and pump heads are as follows z
APPROXIMATE NUMBER OF TUBEWELLS
Number Length of
of Capacity Pump Head Pump Setting Pump Housing
Tabewells (cusecs) (feet) (feet) (feet)
45 45 70
60 60 '70
40 50 50 60 50 60
CAPACITY OF TUBEWELLS
Pump Total Read UCacity (cusec) Total Number of
(Udet) 2 34-- Tubewells
40 45 X x 45
50 45 70 75 x 190
60 x 70 75 60 205
70 x x 60 60
60 70 70 80
Total Number of Tubewells
3.7 Permanent Eguipment and Materials
(1) All permanent equipment and materials to be installed in and made a part of the tubewells shall be complete in every respects and in accordance with the Specifications. The permanent equipment and materials shall consist of vertical turbine pumps, electric motors, motor controls, steel casing pipe (pump housing casing), fibergla=: casing pipe (tubewell casing) and steel discharge pipe.
(2) The approximate number of pumping units, to be furnished by the Contractor, each consisting of pump, motor and motor control, with the design requirements therefor are tabulated in Table 4.
(3) The approximate quantities of steel pump housing casing, fiberglass tubewell casing and steel discharge pipe to be furnished by the Contractor with the design requirements therefor are tabulated in Table 5. The actual lengths of the various types and sizes of pump housing casing and tubewell casing required for each installation will be determined by the Engineer on the basis of the conditions observed in the field. The Contractor shall furnish all appurtenant fittings required for complete installation of the casing, including concentric, tapered steel reducers, straight and reducer couplings and bail plugs and connecting flanges.
(4) The Quantities stated in Table 5 and in the Bill of Quantities may not necessarily agree since one is made for the purposes of payment and bid comparison and the other is made to indicate tubewell design criteria. The Contractor shall be solely responsible for furnishing the amounts of pipe and other material required to complete the work under the contract and should order these items according to his estimated requirements and not necessarily according to the Quantities indicated in Table 5 or the Bill of Quantities.
3.8 Bill of Quantities
(1) The Bill of Quantities (Appendix A to Contract) sets forth the approximate quantities of work by Items for the purposes of payment. The amount bid for each Item of the Bill of Quantities shall be full payment for the completion of the work hi erin and elsewhere in these
Specifications and on the Drawings. The work to be performed and the equipment and materials to be furnished and installed under each Item of the Bill of Quantities-for which payment will be made is as follows :
(a) Items 1-1 through 1-3* Drilling of Tubewell: All
work required in connection with drilling the
borehole at each designated site, as specified
in bhe section "Drilling of Tabewells". Payment
wil?. be made at the unit price per linear foot
bid in the Bill of Quantities for Items 1-1
through 1-3, Drilling of Tubewell.
CONSTRUCTION OF TUBEWELLS
ALIPt R UNIT
PUMPS AND MOTORS DESIGN REQUIREMENTS PUMP RATING PUMP BOWL EFF. PUMP SIZES AND DIMENSIO
NO PUMP AT RATED ATIOFEET COLUMN MINIMUM MINIMUM MINIMU
TE OF CAPACITY TOTAL TOTAL LESSTHAN AND SHAFT COLUMN SHAFT DISCHARC
NTE. RATED LEET DIA DA PIDl
NO. UNITS (CUSECS) HEAD HEAD LENGTH D I A. DIA
(FEET) (PERCENT) TOTALHEAD (FEET) (INCHES) NCHCHES) (INCHES (PERCENT)
(6)-()) (8) (() (10)
16-2 70 3
17-1 75 4 50 80
17-2 75 4 60-8
18-1 60 5 60 80
18-2 60 5 70 80
1-3/16 1-3/8 1-3/
10 10 10 10
EFFICIENCY AT RATED HORSEPOWER (PERCENT)
87 87 87
87 87 87
MAXIMUM NOMINAL BOWL DIA. INCHESS)
12 14 14
EFFICIENCY AT RATED TOTAL HEAD S CAPACITY
62.5 62. 5
62.5 62.5 62.5 62.5 62.5
CONSTRUCTION OF TUBEWELLS
CASING AND DISCHARGE PIPE- DESIGN REQUIREMENTS APPROXIMATE QUANTITIES
NOMINAL MINIMUM LINEAR FEET FOR TUBEWELL CAPACITIES -TOTAL
CASING OR PIPE MATERIAL TYPE D I A. WALL THICKNESS 9 1 15 T 12 LENGTH
20 3.0 40 50 WF.
(INCHES) (INCHES) 402050' 0, 60'50 o6o' q0 (6.0# FT.)
(1) (2) (3) (4) (5) Hd (W)Hd d ()Hd Hd() Hd Hd( )d (tO)
Pump Housing Steel Plain 14 0.250 50 60 60 70 60 70 23,800
Pump Housing Steel Plain 16 0.250 70 80 9,000
Tubewell Fiber Glass Plain 8 0.180 201 20* 12* 12* 12* 12* 12* 12 6,840
Tubewell Fiber Glass Plain 10 0.180 16* 16* 20* 20* 24* 24* 8,120
Tubewell Fiber Glass Blotted 8 0.180 100 100 60 60 60 60 60 60 33,600
Tubewell Fiber Glass Slotted 10 0.180 80 80 100 100 120 120 40,600
Discharge Steel Plain 8 0.188 8 8 8 8 1,840
Discharge Steel Plain 10 o.188 8 8 8 8 2,160
*The-amount of blank (plain) fiber glass tubewell casing may vary considerably from the
approximate quantities shown, depending upon the amount of non water producing formation
(b) Items 2-1 through 7-2 inclusive. Furnish and Install
Casing: All work required in connection with the
installation of casing Ripe, as specified in the section
"Installation of Casing and including the furnishing of
steel pump housing casing and of fiberglass tubewell
casing of the designated size and thickness, either plain
or slotted, and including all reducers, couplings, bail plugs, flanges and other materials or equipment such as
bottom seal plates, centralizers or for making connections,
all in accordance with Specifications "Procurement of
Permanent Equipment and Materials". Payment will be made
at the unit price per linear foot bid in the Bill of
Quantities for Items 2-1 through 7-2, Furnish and Install
(c) Item 8. Furnish and Place Gravel Shrouding: All work
required in connection with furnishing and installing gravel shrouding as specified in the section, "Gravel
Shrouding", including backfilling uncased bore hole as
directed by the Engineer. Payment will be made at the
unit price per linear foot bid in the Bill of Quantities
for Item 8, Furnish and Place Gravel Shrouding.
(d) Item 9. Development and Testing: All work required in
connection *ith the development and testing of each tubewell, as specified in the section, "Development and
Testing". Payment will be made at the unit price per
tubewell bid in the Bill of Quantities for Item 9,
Development and Testing.
(e) Item 10. Concrete: All work required in connection with
the construction of concrete portions of structures,
including, but not limited to, pump pedestal, pump house
footings and floor slab, and discharge box floor slab, and including cement, reinforcement, entraining agent,
curing compound, and for forming, mixing,plaoing,
finishing and curing, as specified in the section,
oConcrete". Payment will be made at the unit price
per cubic yard bid in the Bill of Quantities for Item 10,
(f) Items 11-1 through 11-3. Compacted Fill: All work required
in connection with furnishing, placing and constructing a compacted fill foundation for the pump house at tubewells
designated by the Engineer as specified in the section
"Compacted Fill". Payment will be made at the unit price
per cubic yard bid in the Bill of Quantities for Items
11-1 through 11-3, Compacted Fill.
(g) Item 12. Brick Masonry: All work required in connection
with the construction of the brick masonry portions of
structures, including, but not limited to, pump house and
discharge box, and including cement, sand, and bricks and
for placing masonry as specified in the Section
"Brick Masonry". Deduction will be made for' all openings for doors, but no deduction will be made for openings in
open brickwork. Payment will be made at the unit price
per cubic yard bid in the Bill of uantities for Item 12,
(h) Item 13. Pump House Appurtenances: All work required in
connection with furnishing and installing wood doors,
corrugated metal roofing, hardware, paint and other materials
as specified in the section "Pump House Fixtures ". Payment
will be made at the unit price per pump house bid in the Bill of Quantities for Item 13, Pump House Appurtenances.
(W) Item 14. Installation of Equipment: All work required in
connection with the installation of permanent equipaint at
each tubewell and for furnishing, installing and connecting all other equipment and materials for the complete equipment installation at each tubewell, including, but not limited to, anchor bolts, electrical conduit, lighting system, grounding system and hardware as specified in the Section "Installation
of Equipment". The permanent equipment to be installed at each tubewell consists of pump, (including discharge pipe), motor and motor control, as specified under Specifications
"Procurement of Permanent Equipment and Matdrials".
Payment will be made at the unit price per tubewell bid in
the Bill of Quantities for Item 14, Installation of Equipment.
() Items 15- through 18-2.-inclusive.-Pump Mtor and Motor
Control: Furnishing of the permanent equip ~nt, consisting.
of pump (including discharge pipe), motor, and motor control
for each tubewell including meters, lighting panel, lights
and all accessory equipment required for a complete installation
and for manufacturing, testing, painting, preparation for shipment, and shipment, as specified under dpecifieotions
"Procurement of Permanent Equipment and Matdrials". Payment
will be made at the unit price per each complete unit,
consisting of pump (including discharge pipd), motor and
motor control, bid in the Bill of Quantitied for Items 15-1
through 18-2, Pump, Motor and Motor Control.
(k) Item 19, Contractors Camp:: All work required in connection
with constructing and furnishing a camp for the Contractors
use as specified in the Section "Contractor's Camps ".
Payment will be made at the lump-sum price bid in the Bill
of Quantities for Item 19, Contractor's Camp.
3.9 Construction Equipment and Materials.
(1) Unless otherwise specifically stated-in the Contract, the
Contractor shall furnish all necessary construction equipment and materials for the construction and installation of the tubewells and appurtenances. The construction equipment shall include, but not be limited to, drilling equipment :>f the reverse rotary type, together with all supporting and additional equipment and accessories necessary for taking samples; for installing the tubewell casing and pump housing casing; for slotting the tubewell casing, if required;for placing gravel shrouding; for developing and testing the tubewell; for determining straightness and verticality of pump housing casing; for constructing the concrete pump pedestal and floor slab; for installing the pumps, motors, motor controls, and accessory electrical equipment; for constructing the pump house and discharge box; for the performance of the operating and acceptance tests; and for sterilizing the tubewell. All construction equipment shall be in good, serviceable condition and shall be capable of doing the work. All equipment shall be maintained in satisfactory operating condition and all necessary repairs shall. be promptly made.
(2) The Contractor shall also furnish all testing instruments, equipment and materials required by the Contractor for his use in ascertaining that construction materials, permanently installed equipment and the finished work conform to the requirements of the Specifications and for carrying out all tests required by the Specifications to be performed by the Contractor.
(3) Materials to be furnished by the Contractor shall include all materials necessary for the operation and maintenance of the Contractor's equipment and forces, and all the materials required for installation in each tubewell, including casing, gravel, Portland cement, brick, reinforcement, aggregates, forms, electrical conduit, conductors, wiring and fittings, and all other equipment and materials necessary to perform the work in a complete and satisfactory manner.
(4) The Authority will assist, if so requested, in obtaining allocations of an adequate quantity of Portland cement for the construction of the tubewells and appurtenances ex-manufacturer's works in Pakistan; for which the Contractor will be required to pay directly to the manufacturer the controlled price of cement if prices are controlled by the Government, or if prices are not controlled by the Government, the market price at the date of purchase.
3. 10 Contractor's Camps.
(1) The Contractor shall construct, maintain, and operate all
camps, offices, shops, warehouses, and other facilities required by him for the construction and installation of the work and for the accommodation, health and welfare of his staff and employees. The construction, maintenance and operation of all camps and facilities of the Contractor shall be in strict compliance with the West Pakistan Labour Camps Rules, 1960, as published in the Gazette of West Pakistan of June 3, 1960, and any amendment to the rules which may be officially promulgated from time to time.
(2) The Contractor shall make all arrangements and provide for suitable electrical power supply, potable water supply and sanitary waste disposal systems in all his camps. The location of the Contractorks camps, including camps or establishments of all persons or parties in the vicinity operating or associated with the Contractor, and all buildings, facilities and utility systems therein shall be subject to the approval of the Engineer.
(3) The Contractor shall provide adequately equipped and properly staffed portable first aid stations or dispensaries at sub-camps and other strategic locations to administer emergency first aid treatment at any time required and free of charge to all personnel and employees of the Contractor and to the employees of the Engineer and the Authority. The number and extent of facilities furnished and the Contractor's staff for administering first aid treatment shall be subject to approval by the Engineer.
(4) Any community and recreational facilities which the Contractor may provide at his camps shall be available to employees of the Authority and their dependents and to the Engineer on the same terms as such facilities are available to the Contractor's employees.
(5) Upon completion of the work the Contractor shall, within twelve months of the date of issuance of the Certificate of Completion, remove from the site or sites the entire and complete camps, including all buildings of any kind, all utilities, both overhead and underground, and all other facilities, materials, equipment, plant and refuse or waste materials, or shall otherwise dispose of the entire and complete camps as agreed upon with and to the satisfaction of the Authority. He shall remove from the site or cover with earth, all oil, ashes, rubbish and other foreign materials; fill any excavations; and leave the site in a neat condition to the satisfaction of the Engineer.
3. 11 Safety.
(1) The Contractor shall take all necessary and reasonable precautions to reduce to a minimum the risk of injury to or loss of life of personnel in the prosecution of the work. The Contractor shall provide for
the handling of cement and all other materials in a manner that will not be dangerous to the health and safety of personnel. He shall also establish signals, warning lights, flood lights, and watchmen in all locations where such precautions may be necessary. When work is performed at night, adequate lighting shall be provided.
3. 12 Clean-up.
(1) Upon completion of construction, equipment installation and operation test of each tubewell, the Contractor shall tear down and remove all temporary structures provided and occupied by him; shall remove all lant and refuse or waste materials; shall clean all permanently installed equipment and structures; shall remove from the site of the work, or satisfactorily cover with earth, all oil, ashes, rubbish, and other foreign :naterial; shall refill any excavations; and shall leave the area in a neat and satisfactory condition. At all times during the construction, the Contractor xill be required to keep the site of the work in a reasonably neat condition Lnd shall promptly remove all refuse, -debris, trash, and rubbish. Issuance Af the Certificate of Acceptance and payment for the work under the Contract Documents will not be made until the final clean-up has been made to the satisfaction of the Engineer.
CONSTRUCTION OF TUBEWELLS
DRILLING OF TUBEWELLS
4. 1 General.
(1) Drilling of tubewells shall consist of all work required in connection with drilling the bore hole at each designated site as specified herein and on the Drawings or as directed by the Engineer, including, but not limited to, moving in, setting up, preparing the site, drilling the bore hole, collecting data and keeping records, making electric logs of bore holes designated by the Engineer, installing and removing temporary casing, dismantling, moving out and cleaning up.
(2) Measurement for drilling of tubewells will be made of the actual depth of each bore hole drilled, measured from the original ground surface, for the depth of bore hole specified by the Engineer. No measurement will be made of overdrilling required because of sloughing, caving ground or for the Contractor's use in setting casing; for tubewells abandoned due to jammed tools, caving ground, or negligence on the part of the Contractor; or for tubewelis not constructed in accordance with all of the requirements of these Specifications. Measurement for electric logs will be made of the number of complete logs actually made at the direction of the Engineer.
4. 2 Drilling.
(I) The Contractor shall drill each bore hole at the location established in the field by the Engineer. The Contractor shall prepare the site for the construction of the tubewell and shall provide for the disposal of water, cuttings, and refuse from his operations away from th.e tubewell.
(2) The bore hole shall be drilled by the reverse circulation rotary method with a minimum drill bit diameter of 22 inches. Each bore hole shall be drilled to the depth specified by the Engineer. It is anticipated that the depth of tubewells will vary; however, no minimum depth for any individual tubewell or average depth for all tubewells is guaranteed. The bore holes shall be drilled sufficiently straight and plumb so that the pump and tubewell casing may be installed concentric with the hole and within the tolerance specified for plumbness of the casing. Waste materials from the drilling operation shall be disposed of in a manner approved by the Engineer.
(3) The Contractor shall be responsible for protecting the tubewells from contamination by foreign material until the completed tubewell and appurtenant facilities are accepted by the Engineer. The Contractor shall
bear any expense that may result from damage to any tubewell, tools, or equipment that may be caused by caving, washing, or other disturbances within the tubewell.
(4) Where necessary to prevent sloughing and caving of surface material, the Contractor shall furnish and install a conductor casing with a minimum diameter 2 inches greater than the bit diameter from not less than 6 inches above the ground surface to a sufficient depth to encounter firm material. The conductor casing shall be new or used pipe of adequate strength for the purpose. After the drilling is completed, the conductor casing shall be removed by the Contractor and shall remain his property.
(5) If unstable material is encountered in drilling, the Contractor
shall stabilize the material in a manner approved by the Engineer. The use of drilling fluid additives or other suitable materials may be employed in stabilizing the bore hole when such use is specifically approved by the Engineer. If necessary, temporary casing shall be furnished and installed by the Contractor to hold the walls of the hole during drilling operations and until the gravel shrouding has been placed. All temporary casing shall be removed by the Contractor in 5- to 10-foot stages as the gravel shrouding is placed. The temporary casing may be new or used and shall remain the property of the Contractor.
(6) If, in the opinion of the Engineer, it is necessary to discontinue
work on any bore hole because it is out of line more than the amount specified or on account of jammed tools, caving ground, or because of negligence on the part of the Contractor, the Contractor shall drill another bore hole at an alternative location designated by the Engineer. The Contractor will not be entitled to payment for any work done or materials furnished for bore holes abandoned as a result of his operations or negligence.
4. 3 Data and Records.
(1) The Contractor shall keep an accurate drilling log of each bore hole, including a description of all materials encountered and their location in the bore hole. The fact that the Engineer or his representative may be present and keeping a separate record shall not release the Contractor from this responsibility. In the case of defective or incomplete records, the Contractor shall complete the records at his own expense. All records and data shall be kept by the Contractor on forms approved by the Engineer. The Contractor shall deliver to the Engineer the original of all records, and all such records shall become the property of the Authority.
(2) Representative ditch samples or cuttings of the material penetrated shall be taken at each change in lithology encountered and from each 10 feet of depth of the bore hole. Special care shall be exercised to determine
the thickness and location of each change in material encountered and to obtain satisfactory samples. Immediately upon taking each sample, the sample shall be placed in a cloth bag, partitioned wooden box, or other approved container, properly marked for identification, and plainly labeled with the depth of the top and bottom of the section of the bore hole represented. The containers shall be furnished by the Contractor. The method of obtaining, processing, and storing the samples will be subject to approval by the Engineer. The Contractor shall deliver all samples to the Engineer at the site of the tubewell, except that when requested to do so by the Engineer, the Contractor shall deliver specified samples to the Engineer's field headquarters.
4. 4 Electric Logs.
(1) An electric log shall be made by the Contractor of a number of bore holes as designated by the Engineer. The number of bore holes to be logged will be determined in the field by the Engineer, and prior to the beginning of the drilling of each bore hole, the Contractor will be notified by the Engineer whether or not that bore hole is to be logged. The equipment and apparatus for making the electric logs shall be complete and suitable for making logs in large diameter holes and will be subject to the approval of the Engineer. The electric log shall show the spontaneous electrical potential and resistivity at each point in the bore hole for the total depth of each bore hole logged and shall be of the form specified by the Engineer. The original of each electric log shall be delivered to the Engineer and shall become the property of the Authority.
4. 5 Sterilization.
(1) The Contractor shall furnish and add calcium hypochlorite solution to the drilling fluid to thoroughly sterilize the fluid, tools and equipment used in drilling the bore hole. The calcium hypochlorite solution shall be introduced in the bore hole during the drilling operation in proportion to the volume of water pumped by the circulation pump on the drilling rig. Sufficient calcium hypochlorite shall be used to maintain an average concentration of 50 ppm of free chlorine in the bore hole. The procedure and equipment used to introduce and disperse the calcium hypochlorite solution in the bore hole shall be at the option of the Contractor, and shall be approved by the Engineer.
INSTALLATION OF CASING
(1) Installation of casing shall consist of all work required in connection with the installation of all casing pipe, comprising steel pump housing casing and fiberglass tubewell. casing, both plain and slotted, required for each tubewell as specified herein or on the Drawings or as directed by the Engineer and shall include, but not be limited to, storing, fabricating and installing all pump housing and tubewell casing, including concentric reducers.
(2) Measurement for installation of casing will be made of the total length of each size, wall thickness and type of pump housing and tubewell casing actually installed in the tubewell, including length of concentric' reducers. The measurement of length will be taken from the elevation of the top of the pump housing casing to the bottom of the tubewell casing. For measurement of length, concentric reducers will be considered as casing of the larger size to which the reducers are directly connected. No measurement will be made of centralizers, bail plugs or other accessories required for the complete installation.
4. 7 Fabrication.
(1) The depth of pump housing casing will be established by the
Engineer for each tubewell depending on the future water levels anticipated. Lengths Df the specified diameter of steel casing shall be provided to extend the pump housing casing from the elevation of the top of the pump housing casing to the depth established by the Engineer.
(2) Adjoining sections of pump housing casing shall be assembled by field welding. The ends of the casing sections shall be beveled for butt welding or butt straps shall be provided. All field welding shall be performed by the electric arc method, using heavily coated welding rods suitable for all-position welding. After being deposited, welds shall be cleaned of slag and shall show uniform sections, smoothness of weld metal, feather edges without overlap, and freedom from porosity and clinkers. The pump housing casing shall be connected to the tubewell casing by means of a concentric, tapered reducer which shall be furnished by the Contractor.
(3) The lengths and sizes of fiberglass tubewell casing to be installed shall be specified for each tubewell by the Engineer and shall be sufficient to extend from the bottom of the pump housing casing to the bottom of the tubewell. Tubewell casing for 2. 0-cusec capacity tubewells shall consist of 8-inch diameter pipe. Tubewell casing for all tubewells having a capacity greater than 2. 0 cusecs shall consist of 8-inch diameter pipe for the bottom 60 feet of the tubewell and 10-inch diameter pipe for the remaining length of
tubewell casing as required. The bottom of the tubewell casing shall be provided with a bail plug as shown on the Drawings. The tubewell casing shall consist of slotted sections for installation opposite water yielding formations and plain pipe sections in the lowest 4 feet of the tubewell and opposite non-water yielding formations as directed by the Engineer.
(4) The fiberglass tubewell casing shall be connected to the steel
pump housing casing below the concentric, tapered steel reducer. The tubewell casing shall be connected to the bottom of the tapered steel reducer by means of a cemented, sleeve-type fiberglass coupling. Adjoining sections of tubewell casing shall be connected by means of either cemented, sleeve-type couplings or threaded couplings. All materials and procedures used in making connections shall be in accordance with the fiberglass pipe manufacturer's recommendations for producing joints having a strength equal to or greater than that of the connecting pipe sections.
4. 8 Installation.
(1) The Contractor shall install the entire pump housing and tubewell casing assembly straight, plumb, and concentric in the drilled hole to permit the installation of the pump in such a manner that it will operate satisfactorily and without damage.
(2) Centralizers, spacers or other suitable devices shall be attached to the tubewell casing so that it will be centered in the drill hole throughout its entire length and held in such position while gravel shrouding is being placed. Centralizers may consist of suitably designed fiberglass lugs on the fiberglass couplings or wooden blocks of suitable design either cemented or otherwise attached to the pipe or couplings in a manner that ensures that the pipe is accurately centered in the drill hole. The detail design of centralizers and the method of attachment to the pipe and couplings shall be subject to the approval of the Engineer.
(3) The Contractor shall install the pump housing casing so that the deviation of its axis from the vertical shall not exceed 1-1/2 inches at the bottom of the pump housing casing. Measurements for determination of verticality and straightness of the pump housing casing shall be made by the Contractor in the presence of the Engineer upon completion of the gravel shrouding.
(4) Measurements for determining the deviation of the pump housing casing from the vertical shall be made by the use of a circular plumb having a minimum outside diameter of 1/2-inch less ,than the inside diameter of the pump housing casing. The plumb shall hang vertically and shall be suspended in the center of the pump housing casing from a point 10 feet above the top of the casing. When the plumb is lowered to the bottom of the pump
housing casing, the line from which the plumb is suspended shall not deviate from the center of the pump housing casing at the top by more than that corresponding to a deviation of the plumb of 1-1/2 inches at the bottom of the pump housing casing. All deviations shall refer to a vertical line passing through the center of the pump housing casing at the top of the pump housing casing.
(5) Straightness shall be determined by lowering a section of pipe
40 feet long or a dummy of the same length to the bottom of the pump housing casing. The minimum outside diameter of the pipe or dummy shall be 1/2-inch less than the inside diameter of the pump housing casing. If a dummy is used, it shall consist of a rigid spindle with three cylindrical rings, each ring having a height of at least 12 inches. The rings shall be true cylinders and shall be located at each end and in the center of the dummy. The central shaft of the dummy shall be rigid so that it will maintain the alignment of the axis of the cylindrical rings. The pump housing casing shall be sufficiently straight so the pipe or dummy can be passed freely throughout the entire length of the pump housing casing. Plumbs, pipes and dummies used in these tests shall be approved by the Engineer.
(6) Any tubewell failing to meet the specified requirements for
straightness, verticality and concentricity shall be abandoned, and the Contractor shall construct a new well at his own expense at an alternative site designated by the Engineer.
(7) After completion of installation of the pump housing casing and approval of the installation by the Engineer, the Contractor shall paint the letter and number designation of the tubewell on that portion of the pump housing casing which projects above the ground surface. All paint, brushes, stencils and other materials required shall be furnished by the Contractor. The characters shall be not less than six inches high, shall be painted with lines one inch wide, and shall be positioned on the casing in accordance with the Engineer's instructions.
(1) Gravel shrouding shall consist of all work required in connection with furnishing and installing gravel shrouding in the annular space between the walls of the bore hole and the outside of the casing assembly and in any uncased length of bore hole drilled at the direction of the Engineer as specified herein and on the Drawings including, but not limited to, developing the source, excavating, stockpiling, grading, washing, storing, shipping, and installing gravel shrouding in each tubewell.
(2) Measurement for gravel shrouding will be made of the depth of
the gravel shrouding actually furnished and placed in the tubewell, measured from the ground surface to the depth of the bore hole requested by the Engineer. If the entire length of the bore hole specified to be drilled by the Engineer is not cased, the Contractor will be paid 1. 15 times the unit price bid per linear foot for gravel shrouding for the uncased length of the bore hole which is backfilled with gravel shrouding material.
4. 10 Gravel Source.
(1) There is no known source of gravel suitable for tubewell shrouding within the Project. Investigations which have been made to date indicate that deposits of usable gravel are located some 200 miles northwest of Lahore. Accessible sources of gravel -for shrouding are located on the CampbelnpurPindi-Ghaib metalled road, some 3 to 5 miles from the Campbellpur railhead.
(2) The site is generally suitable for the installation of a screening plant, although the deposit area may be expected to be inundated during flood periods and it may be necessary to stockpile gravel in order to operate the screening plant continuously during such periods.
(3) The gravel source and plant site will be made available free of
charge to the Contractor for the production of gravel for shrouding, aggregate for concrete, and other uses as required by the Contract Documents and as directed by the Engineer. All gravel processed from sources made available free of charge to the Contractor and not used for the performance of the work specified herein shall revert to and become the property of the Authority.
(4) The results of the explorations and investigations indicated
above are furnished for information only, and the Authority will not be responsible for any deduction, interpretation, or conclusion drawn therefrom
SHROUDINGby the Contractor. Neither will the Authority be responsible for the amount of work involved nor the amount of materials it will be necessary to waste in order to obtain the required amount of suitable gravel. Upon withdrawal from the site, the Contractor shall remove all structures and equipment and shall grade and clean up the site as directed by the Engineer.
(5) The Contractor may obtain gravel from alternative locations, subject to the approval of the Engineer, provided that the gravel meets the requirements of the Specifications, and that there is no additional cost to the Authority.
4. 11 Installation.
(1) The annular space between the outside of the casing assembly and the wall of the drilled hole shall be gravel shrouded by the Contractor from the bottom to the top of the tubewell in such a manner that there will be no voids other than the intergranular space between the gravel particles. If, at the Engineer's direction, the bore hole is not cased the full depth designated to be drilled, the uncased length of the bore hole shall be filled with gravel shrouding.
(2) The Contractor shall furnish all gravel used for shrouding which shall be clean, hard, well-rounded, washed, carbonate free, and water worn, without thin, flat particles and with the following gradations:
United States Standard
Screen Number Per Cent Passing
No. 4 60 80
No. 8 20,- 40
No. 16 0 5
(3) The method of placing the gravel and the equipment used will be subject to approval by the Engineer. The Contractor shall circulate water in the tubewell, as the gravel is being placed, by lowering the drill pipe inside the casing and operating the circulation pump. The gravel shall be placed to the top of the tubewell and shall be finally settled by bailing after all gravel has been placed. The top of the gravel shrouding shall be maintained at the ground level at all times during developing, testing, and pumping. Gravel and gravel placement not meeting these requirements will-be. subject to rejection by the Engineer, and all gravel so rejected shall be replaced by the Contractor at his own expense at no additional cost to the Authority.
(4) Temporary casing, if used, shall be carefully withdrawn in 5to 10-foot stages during placement of the gravel shrouding and the gravel shall be introduced so that each stage of the hole above the bottom of. the casing is
completely filled before the casing is withdrawn to the next stage. The process of withdrawing the temporary casing shall be continued until the bottom of the temporary casing is at least 10 feet above the top of the tubewell casing. Above this point the temporary casing may be removed or left in place, at the option of the Contractor, provided that no payment will be made to the. Contractor for temporary casing left in place.
DEVELOPMENT AND TESTING
4. 12 General.
(1) Development and testing shall consist of all work required in
connection with the development of each tubewell to produce the design capacity of relatively sand free water with a minimum drawdown, and the testing of each tubewell to determine the effectiveness of the development operations as specified herein or as directed by the Engineer. Development and testing shall include, but not be limited to, surging, backwashing, and pumping the tubewell at higher than rated capacity; testing the tubewell for specific capacity, sand content and degree of development; and sterilizing and sealing each tubewell.
(2) Measurement for development and testing of tubewells will be made of the number of tubewells developed, tested, and accepted by the Engineer.
4. 13 Development.
(1) The development procedures and methods used for development of the tubewells shall be established by the Contractor subject to approval by the Engineer, and the development operations shall be witnessed by the Engineer from their initiation to their completion. The Contractor shall maintain a complete record of the development operation and shall make regular periodic measurements of discharge rates, sand content and water level measurements. The procedures used shall include backwashing and pumping at higher than rated capacity and may include surging or similar procedures determined by the Contractor.
(2) The development of the tubewell shall be performed for a minimum of six hours by step pumping, backwashing, and surging the tubewell with a vertical turbine pump. The Contractor may notify the Engineer at any time following the completion of the six-hour pumping period that the tubewell is ready for testing.
4. 14 Testing.
(1) The Contractor shall test each tubewell under the Engineer's direction as described herein. Upon completion of the development operations the tubewell shall be permitted to recover for a minimum period of one hour. During this recovery period, the tubewell shall be sounded. If the comparison of the depth by sounding and the length of the casing string indicates there is more than six feet of material in the tubewell, it shall be cleaned to within two feet of the bottom of the casing.
(2) Following the recovery period, the tubewell shall be pumped
at 150 percent of rated capacity for a period of one hour. The water pumped shall at all times be clear and free from turbidity. At the end of the first five minutes of pumping, the sand content of the water shall be determined by using a 1000-milliliter Imhoff cone or other device approved by the Engineer. The sand content of the water at this time shall be less than 100 ppm. A second sand content determination shall be made 10 minutes after the start of pumping. The sand content at this time shall be less than 30 ppm. If the sand content tolerances are exceeded at this time, or at any subsequent time up to the time of final acceptance of the installation, while pumping at the rate of 150 percent of design capacity or less, the development of the tubewell shall be considered incomplete and the Contractor shall resume development of the tubewell at this own expense until such time as the tubewell will produce water meeting the sand content tolerances. Sand content determinations, water level, and discharge measurements during the remainder of the one-hour sand test period shall be made as directed by the Engineer.
(3) When the sand test has been satisfactorily completed, the
tubewell shall be further developed for 4 hours at 150 percent of the rated capacity of the tubewell by surging and backwashing with the test pump at five- to ten-minute intervals. Following the development period, the tubewell shall again be pumped for a period of one hour at 150 percent of design capacity during which time the sand test shall be repeated. The specific capacity of the tubewell shall be determined from the water level measurements and flow rates obtained during the pumping periods. If the specific capacity obtained from the second pump test is found to be more than 10 percent greater than that obtained in the first pump test, the development shall be considered to be incomplete and the Contractor shall resume development, at his own expense, until the tubewell is developed sufficiently to meet this requirement.
(4) Upon satisfactory completion of the above 1-hour pumping period the tubewell shall be permitted to recover for a period of one hour. Upon the completion of this recovery period, a four-hour multiple step pump test shall be performed by pumping the tubewell for one hour at each of approximately four equal increments. The last increment shall be at 150 percent of rated capacity. Following this last increment of the step test, the tubewell shall be pumped at a rate of 150 percent of design capacity for a period of two hours.
(5) The following is a short summary of the development and testing procedure:
Development time 6 hours (minimum) Recovery 1 hour (minimum)
Pumping period 1 hour
Development 4 hours
Pumping period 1 hour
Recovery 1 hour (minimum)
Step pumping 4 hours
Pumping period 2 hours
(6) The Contractor shall furnish all necessary equipment for testing the tubewell, including a water-lubricated or oil-lubricated test pump capable of delivering at least 150 percent of the tubewell rated capacity at all stages of the tests, a valve for fine adjustment of the discharge, an electric measuring device to determine the drawdown during each stage of the test, conductivity meters for determining water quality, and Imhoff cones to measure sand content. If oil-lubricated test pumps are used, the Contractor shall exercise all reasonable precautions to keep the leakage of lubricating oil into the tubewell at a minimum and 'shall promptly remove all-oil which collects on the water surface in the tubewell by the addition of detergents or other suitable chemicals and pumping the emulsified oil from the tubewell. In the event the Contractor fails to keep the leakage of oil into the tubewell within, acceptable limits or to promptly remove oil accumulations from the tubewell, the Engineer will order the use of oil-lubricated test pumps discontinued, and the Contractor will be restricted to the use of water-lubricated pumps for testing of the tubewells. The actual depth of setting for the test pump will be determined by the Engineer after the tubewell has been developed. Piping, gauges, orifices, meters, weir boxes or other measuring devices shall be furnished, installed and removed by the Contractor and shall remain his property. All measuring devices and testing equipment will be subject to approval by the Engineer.
(7) The Contractor shall take drawdown and discharge measurements and other pertinent data during each test at intervals as specified by the Engineer. All such data shall be recorded on forms approved by the Engineer, and the original of such forms shall be delivered to the Engineer at the completion of the development and testing operations.
4. 15 Sterilization and Sealing.
(1) After development and testing of the tubewell has been satisfactorily completed, and when approved by the Engineer, the Contractor shall sterilize the tubewell by dispersing copper sulfate (Cu S04. 5 H20) at the rate of two pounds of copper sulfate per 100 feet of bore hole throughout the entire depth of thetubewell. The procedure and equipment used to introduce and disperse the copper sulfate in the tubewell shall be at the option of the Contractor, and shall be approved by the Engineer.
(2) Upon completion of sterilization of the tubewell the Contractor
shall seal the tubewell with a !-inch thick steel plate cap welded to the pump housing casing around its full circumference, or by some other method approved by the Engineer. Compliance with this requirement will not relieve the Contractor of his responsibility for the safeguarding of any part of the tubewell completed until the Certificate of Acceptance is issued for the entire tubewell installation.
CONSTRUCTION OF APPURTENANT FEATURES
COM ACTD FILL
5. Y General,
(I) Compacted fill shall consist of all work required in connection with constructing a compacted fill foundation for the pump house at tubewells designated by the Engineer as specified herein and on the Drawings including, but not limited to, excavating the required material, transporting the fill material to the tubewell site,, preparing the surface under the fill, placing the fill material in the pump house foundation, obtaining the proper moisture content, and compacting the fill material.
(2) Measurement for compacted fill will be made of the volume of compacted fill in place to the lines and grades shown on the Drawings or e stablished by the Engineer. No measurement will be made of excavation required to obtain the fill material.
5. 2 Placement of Fill.
(1) All compacted fill shall be constructed of suitable material
obtained from borrow areao or other excavation in the immediate vicinity of the tubewell. The location, extent and depth of excavation in borrow areas shall be as directed by the Engineer. Upon completion of excavation of material required for compacted fi., the Contractor shall grade and leave the borrow area in a condition acceptable to the Eingineer.
(2) Prior to placement of fill material, the ground surface on which the fill will be placed shall be scarified or loosened and moistened so as to provide an adequate bond with the fill material.
(3) The fill material shall be placed in horizontal layers not more than 6 inches thick after being compacted, and in such a manner that the compacted fill will be free from lenses, pockets, streaks or other imperfections. The material when placed shall have the optimum practicable moisture content required for the purpose of compaction, as determined by the Engineer and the moisture content shall be uniform throughout each layer. If the moisture content is less than optimum for compaction, the moisture content shall be supplemented by sprinkling and reworking the material at the site of compaction. If the moise content is greater than optimum for compaction, the material shall be dried by reworking, mixing with dry materials, or other approved means.
(1) The Contractor shall compact the fil material to the specified lines and grade-s by manual or pneumatic tampers or other means approved by the Engine.er. Care shall be exercised in compacting the fill immediately adjacent to the pump housing casing, and any damage resulting from placing and compacting of the fill shall be repaired by and at the expense of the Contractor.
(2) The fill material shall be compacted until the dry density of the compacted material is not less than 90 percent of the laboratory maximum dry density as determined by the Standard Proctor Compaction Test (ASTM Designation: D698) for the materials being compacted. The Engineer will take samples of the material being compacted and will perform the tests required to determine that the compaction meets the requirements of these Specifications.
(1) Concrete shall consist of all work required in connection with constructing concrete portions of structures; including, but not limited to, furnishing cement, reinforcement, sand, aggregates and all other materials; furnishing and installing forrmwork; and watching, placing, finishing and curing the concrete., All excavation, leveling, grading, backfill, cleanup and othervrork incidental to and required for construction of concrete structures, except compacted 3.11 for pump house foundations, shall be performed by the Contractor as work included under concrete.
(2) Mea surement for concrete will be made of the volume of concrete measured to the neat lines of the structures as shown on the Drawings or as modified by the Engineer. No measurement will be made of excavation and other earthwork required for concrete structures; or for furnishing reinforcement, Portland cement, or any other materials required for concrete.
5, 5 Portland Cement,
(1) All cement shall be ordinary Portland cement conforming to the requiremrents of ASTM Designation: C15, Type 1, or the British Standards institution Deiisgnation: 1 8T1?
(z Cemnet in s bhall be dehivered in strong, weil-made, paper or cla5 bags, nach plainly marked with the manufacturer's brand. The eightt of all packages shall be uniform, Packages received in broken or umaged condition shall be rejected, or accepted only as fractional packages. Shipments of sacked cement in which more than five percent of the sacks xveigb less than 1'2 pounds -will be cause for rejecting the entire saipnent. At thei- contractor'ss option, cement may be delivered in bulk, providing the contractorr provides approved storage, weighing devices, and all other necessary facilitie ,' tu nSUCrekping the cement in good conditions.
(3) The Conhxactr 5hall pl ride suitable storage fo cement at
approved phaces convenient to the sorok, and the cement shall at all times be carefully and in a worimanIk manner -protected by him against moisture and exConre to air, Cemnnt In packages shall not be piled to a height exceeding 7 feet, Bulk cerent shall be stored in weather-tigut oIns or silos constructed so that there will bo no dead storage.
5. 6 Reinforcement.
(1). Concrete reinforcement shall be new steel bars conforming to
ASTM Designation: A15 for Billet-Steel Bars,. Intermediate Grade, and may be either plain or deformed bars. The size of bars shall be as shown on the Drawings or as directed. The reinforcement when-placed shall be free from loose mill scale, rust, and from coatings that destroy or reduce the bond. Where there is delay in depositing concrete, reinforcement shall be reinspected and cleaned when necessary.
(2) Reinforcement shall be accurately fabricated to the dimensions
shown on the Drawings. Reinforcement shall not be straightened or rebent in a manner that will injure the material. Bars with kinks, or bends not shown on the Drawings, shall not be used. Heating of the reinforcement will not be permitted. Reinforcement shall be accurately positioned'and secured against displacement by using iron wire ties at inter sections,, and shall be supported. as required. In all cases sufficient supports for horizontal reinforcement shall be used so that there will be no sagging of the bars.
(1) All sand and coarse aggregate for concrete, and sand for mortar and grout shall be furnished by the Contractor and may be obtained by the Contractor from-any approved source.
(2) The term "sand" is used to designate aggregate in which the maximum size of particles is 3/16 of an inch. Sand for concrete, mortar and grout shall be either natural or manufactured sand, or a mixture of natural, sand and manufactured sand, provided that the manufactured sand meets all the requirements set forth for natural sand. The sand, as delivered to the batching plant, shall have a reasonably uniform and stable moisture content. All operations for blending natural sand and manufactured sand will be subject to the approval of the Engineer at-all times.
(3) The sand shall consist of hard, dense, durable, uncoated rock fragments and shall be free from injurious amounts of dust, lumps, soft or flaky particles, shale, alkali, organic matter, loam, mica and other deleterious substances. The sand as batched shall be well-graded, and when tested by means of U. S. Standard Screens, at least 95 percent by weight shall pass a No. 8 screen, not more than 15 percent shall pass a No. 100 screen, and not more than 3 percent shall pass a No. 200 screen. Sand having a specific gravity of less than Z. 52 may be rejected.
(4) The term "coarse aggregate" is used to designate aggregate that is reasonably well-graded from 3/16-inch to 1-1/2-inches or any size or range of sizes within such limits. Coarse aggregate for concrete shall consist
4-16-65 F-4 STD
of natural gravel or crushed rock or a mixture of natural gravel and crushed rock.
(5) The coarse aggregate shall consist of well-shaped, hard, dense, durable, uncoated rock fragments, and shall be free from objectionable quantities of wood fragments. The percentage of material passing a No. 200 screen in any size of coarse aggregate, as delivered to the batching plant, shall not exceed one percent by weight. The sum of the percentages of all deleterious substances in any size, as delivered to the batching plant, shall not exceed three percent, by weight. Coarse aggregate may be rejected if it fails to meet the following test requirements:
(a) Los Angeles rattler test. If the loss exceeds 10 percent,
by weight, at 100 revolutions, or 40 percent, by weight,
at 500 revolutions.
(b) Specific gravity. If the specific gravity (saturated surface-.
dry basis) is less than 2. 52.
(c) Sodium-sulfate test for soundness. If the weighted average
loss after five cycles is more than 10 percent, by weight.
(6) The coarse aggregate shall be separated into nominal sizes, as follows:
Designation Nominal Minimum Per cent
of Size Size Range Retained on Screens
3/4-inch 3/16-inch to 3/4-inch Not less than 40 percent
nor more than 65 percent
1-1/2-inch 3/16-inch to 1-1/2-inch 25 percent on 1-1/4-inch.
(1) The water used in concrete, mortar and grout shall be free from objectionable quantities of silt, organic matter, alkali, salts and other impurities, and shall be subject to approval by the Engineer.
5. 9 Air-Entraining Agent.
(1) The Contractor at his option and own expense may use an airentraining agent in all concrete. The air-entraining agent used shall conform to the requirements of ASTM Designation: C260 and shall be of uniform consistency and quality within each container and from shipment to shipment.
The air-entraining agent will be subject to sampling and testing by the Engineer. The amount of air-entraining agent used shall be such as will effect the entrainment of from 4 to not more than 6 percent of air, by volume, in the concrete as discharged from the mixer. The agent shall be added to the batch in solution in a portion of the mixing water.
5. 10 Composition of Concrete.
(1) Concrete shall be composed of Portland cement, sand, coarse aggregate, water and if desired by the Contractor, an air-entraining agent, all well-mixed and brought to the proper consistency. All concrete shall develop a compressive strength at 28 days of not less than 2,000 pounds per square inch. The proportions of the various ingredients shall be as determined by the Engineer from time to time during the progress of the work and as tests are made of samples of the aggregate and the resulting concrete. The mix proportions and appropriate water-cement ratio will be determined on the basis of the production of concrete having suitable workability, density, impermeability, durability, and required strength, without the use of an excessive amount of cement. All concrete shall have a minimum cement content of five cubic feet of cement per cubic yard of concrete. The net water-cement ratio of the concrete (exclusive of water within or absorbed by the aggregates) shall not exceed 0. 60 by weight.
(2) Tests of the concrete will be made by the Engineer and the mix
proportions shall be changed whenever necessary for the purpose of securing the required workability, density, impermeability, durability or strength, anai the Contractor shall be entitled to no additional compensation because of such changes. The compressive strength of the concrete will be determined by the Engineer by means of tests of 6-inch by 12-inch cylinders.
(3) The amount of water used in the concrete shall be changed as required to secure concrete of the proper consistency and to adjust for any variation in the moisture content or grading of the aggregates as they enter the mixer. Addition of water to compensate for stiffening of the concrete resulting from excessive overmixing or objectionable drying before placing will not be permitted. Uniformity in concrete consistency from batch to batch will be required. The slump of the concrete, after the concrete has been deposited but before it has been consolidated, shall not exceed three inches for all concrete.
5.11 Batching of Concrete.
(1) The Contractor shall provide such means and equipment as are required to determine accurately and to control the amount of each separate ingredient entering the concrete. Such means, the equipment and its operation shall at all times be subject to approval by the Engineer. The amounts of
cement, water, sand, and each size of coarse aggregate entering each batch of concrete shall 'be determined by weighing or by volumetric measurement. Where sacked cement is used, the concrete shall be proportioned on the basis of integral sacks of cement, weighing 112 pounds per sack.
5.12 Mixing Concrete.
(1) The concrete ingredients shall be mixed in a batch mixer for not less than 1-1/2 minutes after all ingredients, except the full amount of water, are in the mixer. The Engineer reserves the right to increase the mixing time when the charging and mixing operations fail to produce a concrete batch throughout which the ingredients are uniformly distributed and the consistency is uniform. The concrete shall be uniform in composition and consistency from batch to batch except when changes in composition or consistency are required. Water shall be added prior to, during, and following the mixercharger operations. Excessive overmixing requiring the addition of water to preserve the required concrete consistency will not be permitted;
5. 13 Form Construction.
(1) Forms to confine the concreteand shape it to the required lines shall be used wherever necessary. Forms shall be of smooth planed boards, in good condition. Suitable and effective means shall be provided in the construction of all forms for holding adjacent edges and ends of panels tightly together and in accurate alignment so as to prevent the formation of ridges, fins, offsets, or similar surface defects in the finished concrete. All forms shall be properly secured in position so as to prevent floating, or other movement, during the placing of concrete.
5. 14 Placing Concrete.
(1) No concrete shall be placed until all formwork, reinforcement, installation of parts to be embedded, bracing of forms, and preparation of surfaces involved in the placing have been approved. No concrete shall be placed in water. Immediately before placing concrete, all surfaces upon or against which the concrete is to placed shall be free from standing water, mud, debris or loose material. The surfaces of the ground or of other absorptive materials against or upon which concrete is to be placed shall be moistened thoroughly so that moisture will not be drawn from the freshly placed concrete. The surfaces of all contraction joints shall be cleaned thoroughly of accretions of concrete or other foreign material.
(2) The method and equipment used for transporting concrete shall be such that concrete having the required composition and consistency will be delivered to the work, without objectionable segregation or loss of slump.
(3) Concrete shall be placed only in the presence of the Engineer. In placing concrete against formed contraction joints, special precautions shall be taken to ensure that the new concrete is brought into intimate contact with the surface of the joint, by careful puddling and spading with the aid of suitable tools. Retempering of concrete will not be permitted. Any concrete which has become so stiff that proper placing cannot be assured shall be wasted and no payment will be due the Contractor for such wasted concrete, including the cement.
(4) Concrete shall be deposited in all cases as nearly as practicable directly in its final position and shall not be caused to flow in a manner to permit or cause segregation. Excessive separation of coarse aggregate in concrete, caused by allowing the concrete to fall freely from too great a height, or at too great an angle from the vertical or to strike the forms or reinforcement steel, will not be permitted. After depositing, the concrete shall be thoroughly consolidated around reinforcement and other embedded materials and against all surfaces and into corners of the forms by rodding, spading, vibrating or other approved means.
(5) Concrete shall not be placed during rains sufficiently heavy or prolonged to wash mortar from coarse aggregate. Once placement of concrete has commenced in a structure, placement shall not be interrupted by diverting the placing equipment to other uses. The temperature of concrete when it is being placed shall be not more than 90 degrees and not less than 40 degrees Fahrenheit.
(6) The time and method of removal and moving of forms shall be as directed by the Engineer, and this work shall be done with care so as to avoid injury to the concrete. No loading on green concrete will be permitted. As soon as the forms are removed, the surface of the concrete shall be carefully examined, and any irregularities in the surface shall be repaired to the satisfaction of the Engineer.
S. 15 Curing.
(1) All concrete shall be cured by membrane curing as hereinafter specified. If, in the opinion of the Engineer, water curing of concrete is necessary, such curing may be authorized by the Engineer as an alternate method, and shall be carried out as hereinafter specified. Membrane curing shall be the normal method of curing concrete.
(2) Concrete cured with water shall be kept wet for at least 14 consecutive days immediately following placement of the concrete, by covering with water-saturated material, or by a system of perforated pipes, mechanical sprinklers, or porous hose, or by any other approved method, which will keep all surfaces to be cured continuously (not periodically) wet. Water used for curing shall meet the requirements of these Specifications for water used for mhxng concrete.
(3), Membrane curing shall consist of the application of a hit
pigmented sealing compound which forms a water-retaining membiane' on. the surface of the concrete. The sealing compound. shall conform to the United States Bureau of Reclarnation "Specifications for Sealing Compound for Curing Concrete", effective June 1, 1961. At the time of use, the sealing compound shall be in a thoroughly stirred condition such that the pigment is uniformly dispersed throughout the vehicle.
5. 16 Finishing.
(1) Finishing of concrete surfaces shall be performed only by skilled workmen and in the presence of the Engineer. Formed surfaces upon or against which backffll or concrete is to be placed will require no treatment after form removal except for the removal -and repair of defective concrete and for the specified curing. Unformed surfaces that will be covered by backfill or by. concrete shall be finished by sufficient leveling arid screeding to produce an ever.j, uniform surface.
(2) A hard steel trowel finish shall be applied to unformed surfaces that will be exposed or subjected to the action of flowing water. Floating and troweling shall be started as soon as the screeded surface has stiffened sufficiently, and shall be the minimum necessary to produce. a surface that is-free from screed marks and is uniform in texture.
5. 17 Joints.
(1) The location of all. construction joints will be subject to the approval of the Engineer. Contraction joints shall be constructed where shown on the Drawings. The joints shall be made by forming the concrete on one side of the joint and allowing it to set before concrete is placed on the other side of the joint. The surface of the concrete first placed at contraction joints shall be coated with curing sealing compound before the concrete on the other side of the joint is placed.
5. 18 General.
(1) Brick Masonry shall consist of all work required in connection with constructing brick masonry portions of structures; including, but not limited to, furnishing brick, Portland cement and sand for mortar, and all other materials; and mixing mortar, placing brick, and curing the brickmasonry. Embankment around discharge boxes and earthwork for construction of watercourses are not a part of the work to be done under the Contract.
(2) Measurement for brick masonry will be made of the volume of brick masonry furnished and placed in structures to the dimensions shown. on the Drawings or as modified by the Engineer. Deduction will be made for all openings for doors. No deduction will be made for openings in open brickwork in pump houses,
5. 19 Materials.
(1) All Portland cement for mortar shall be furnished by the Contractor and shall conform to the applicable requirements specified in the section, "Concrete".
(2)- All sand for mortar shall be furnished by the Contractor and
shall conform to the applicable requirements for sand specified in the section, "Concrete".
(3) All water used in the manufacture of bricks and in the preparation of mortar shall be free from objectionable quantities of silt, organic matter, alkali,- salts and other impurities, and will be tested and approved byrthe Engineer.
(1) Mortar for all brick masonry, except where otherwise directed by the Engineer, shall consist of one part Portland cement to three parts of damp loose mortar sand by volume and sufficient water to produce the proper consistency for the intended use. Where directed by the Engineer for increased workability, hydrated lime] putty, approved by the Engineer, shall be added to the mortar, but shall not exceed 25 percent, by volume, of the dry cement.
(2) Methods and equipment used for mixing mortar shall be such as will. accurately determine and control the amount of each separate ingredient entering into the mortar and shall be subject to the approval of the Engineer. Mortar shall be mixed only in sufficient quantities for immediate use and all mortar not used within 30 minu'us after addition of the water to the mix shall be wasted. Retempering of mortar will not be allowed. The mixers shall be thoroughly cleaned and washed at the end of each day's work.
5. 21 Brick.
(1) All bricks shall be of first-class quality made from good brick earth, free from saline deposits and shall be sand moulded. They shall be thoroughly burnt without being vitrified, shall be regular, uniform in shape and size with sharp and square arises, parallel faces and of deep, red or copper color. First class bricks shall be homogeneous in texture and emit a clear ringing sound when struck, and shall be free from flaws, cracks, chips, stones and nodules of lime. First-class brick in an ovendried condition shall not absorb more thari 1/5 of its weight of water when immersed one hour in water of 70 to 80 degrees Farhrenheit and shall show no signs of efflorescense on subsequent drying. The average compressive strength of five representative first-class bricks shall be not less -than 2500 pounds per square inch and not less than 2290 pounds per square inch for any individual brick.
(2) All bricks shall be manufactured by the Trench Kiln Method or other standard methods approved by the Engineer. The earth used in manufacturing bricks shall be carefully selected and shall be of good firm loani or clay. The earth shall be free from objectionable quantities of lime, gravel, coarse sandi roots, or other organic matter Salts. shall not exceed 0. 3 percent and calcium carbonate shall not exceed 2. 0 percent.
(3) The moulds used in the manufacture of bricks shall be thoroughly sanded before each use and shall be sufficiently larger than the size of the bricks being manufactured to allow for shrinkage in drying and burning. Over-size, irregular, and worn moulds shall be destroyed. Each finished brick for brick masonry shall be 9 inches by 4-3/8 inches by 3 inches in'. size and weigh between seven and nine pounds. All bricks shall have a "frog" I/4-inch.de p on one face.
(1) The methods and equipment used for'transporting the bricks
and mortar shall bt2 such as will not damage the brick nor delay the use of mixed mortar. Bi ick shall not be placed during rains sufficiently heavy or prolonged to wash the mortar from the brick. Mortar already spread which becomes diluted b, rain shall be removed and replaced before continuing 3-31-65 STD
with the work. All bricks to be used in brick masonry shall be moistened with water from three to four hours before they are used, by a.method which will ensure that each brick is thoroughly and uniformly wetted. All bricks shall be free from water adhering to their surface when they are placed in the brick masonry.
(2) Bricks shall be laid "frog" face down with mortar joints' and in English bond as shown on the Drawings or -as directed by the Engineer. Both bed and vertical joints shall be 1/4-inch in thickness completely filled with cement mortar as specified herein, and each brick shall be bedded by firmly tapping with the handle of the trowel. All horizontal joints shall be parallel and all vertical joints in alternate courses shall be directly over one another. Excess mortar at the outer edges shall be removed and joints drawn straight with the edge of a trowel and a straight edge.- All anchors and similar work required to be embedded in the brick masonry shall be installed as the work progresses. At the completion of the work all holes or defective mortar joints shall be cut out and repointed.
(3) Both the exterior and interior faces of the pump house walls shall be finished by striking the joints as the work proceeds. Joints of brick masonry for discharge boxes are not required to be struck, except where exposed to view. The joints shall be struck by raking the green mortar after the brick work has been laid and finishing the joint with a pointing tool. Horizontal joints shall be struck to form a weathered joint, and vertical joints shall be struck with a "IV" notch., Care shall be taken that the striking tools do not develop a cutting edge as the object of striking the joint is to compress the mortar into the joint.
(4) One coat of cement mortar plaster shall be applied to the inside faces of all brick masonry walls of the discharge boxes. The exposed faces of all other brick masonry shall be thoroughly cleaned and left bare with struck joints as specified above. Brick masonry, including mortar plaster, is not required to be painted.
5. 23 Curing and Repair.
(1) All brick~masonry shall be water cured and shall be keiit wet for at least seven days by an approved method which will keep all surfaces to be cured continuously wet. Water used for curing shall meet the requirements of these Specifications for water used in the manufacture of bricks.
(2) If, after the completion of any brick masonry work, the brick is not in alignment or level, or does not conform to the lines and grades shown on the Drawings, or shows a defective surface, it shall be removed and replaced by the Contractor at his expense unless the Engineer grants permission, in writing, to patch or replace the defective area.
PUMP HOUSE FIXTURES
5. 24 General.
(1) Pump house fixtures shall consist of all work required in
connection with furnishing and installing wood entrance doors, corrugated metal roofing, hardware, paint and all other materials required to complete the construction of the pump houses as shown on the Drawings or as directed by the Engineer.
(2) Measurement for pump house fixtures will be made of the number of pump houses for which fixtures are furnished and installed.
5. 25 Materials and Installation.
(1) All lumber, corrugated roofing, doors, hardware, anchor bolts, and other materials shall be new, shall be of the best commercial quality and shall be approved by the Engineer.
(2) The pump house roof shall be constructed of 24 gage (British) corrugated, galvanized jteel sheets attached to the brick masonry walls and concrete battens by means of anchor bolts, J-bolts, and four 1/8-inch by 2-inch steel bar wind tics as 3hown on the Drawvings,. The roofing shall be sized to provide 6-inches overhang outside the pump house walls, and adjoining sheets shall be lapped a minimum of one inch.
(3) The pump house doors shall be center-opening, wood, exterior type having a minimum thickne ss of I inches. The doors shall be furnished complete with all hardware, including three hinges and all necessary slide bolts, hasps, padlocked, keys and holdfasts required for a complete installation as shown on the Drawings. The opening in the brick wall above the door shall m.be covered by means of a wood panel set in a groove in the brick wall as shown on the Drawings.
5. 26 Painting.
(1) Upon completion of all other construction and when approved by the Engineer, the Contractor shall thoroughly clean the exposed surfaces of the doors and other woodwork installed in the pump house and shall finish the exposed surfaces of all woodwork with two coats of exterior wood paint. The color of paint will be selected by, and the paint shall be subject to the approval of the Engineer. All surfaces of woodwork to be placed against concrete or 3-31-65 STD
bIAck masonry hall be give one coat of an approved bituininous material pior to instAllation,
(2) The Cont2-atr #hall paint the letter and number designation
of baeh tubewtll on oue side of the concrete pump pede stal and on the outside of one of the brick inasonry pump houie walls. All paint, brushes, stencils, 4nd other materials Yaquired hall be furnished by the Contractor. The size, configuration, coloo &nd location of the number shall be approved by the frgioeiS
INSTALLATION OF EQUIPMENT
(1) Installation of equipment shall consist of all work required in connection with the installation of the permanent equipment to be installed at each tubewell as specified herein and on the Drawings or as directed by the Engineer, including, but not limited to, unpacking, assembling and installing pumps (including discharge pipe), motors, and motor controls; furnishing, installing and connecting all electrical conduit, fittings, conductors, lighting system, grounding system, and other materials not furnished as a part of the pumps, motors and motor controls but required for a complete installation, servicing, performing operational and acceptance tests, and adju .sting as required the complete equipment installation;, and furnishing and injecting chemicals for final sterilization of the tubewells. The ontractor shall furnish all bolts, including anchor bolts, nuts, washers, shims, fittings, grout and other materials required for proper installation of the equipment which are not supplied as part of the pumps, motors and motor controls.
(2) Measurement for installation of equipment will be made of the number of tubewells for which the permanent equipment has been installed and the acceptance test completed to the satisfaction of the Engineer.
(3) Before installing any permanent tubewell equipment, the Contractor shall measure the depth of the tubewell. If foreign material in the tubewell exceeds four feet in depth, the Contractor shall clean the material to within two feet of the bottom of the tubewell.
5. 28 Installation of Pumps.
(1) The Contractor shall carefully clean, assemble, align, and install the pumps in accordance with the manufacturers recommendations. Special care shall be taken to ensure that all connections are clean and free from burrs and foreign material to ensure tight fit and proper alignment. Connections between adjoining sections of column pipe and line shaft shall be correctly assembled and tightened to maintain accurate alignment. A suitable thread lubricant shall be used on all threaded connections to facilitate dis.assembly for maintenance. Defective or damaged equipment shall not be
installed, but shall be replaced by and at the expense of the Contractor.
The assembled pump shall be lowered into the pump housing casing and the
surface discharge head positioned on the pump pedestal and shimmed to
correct alignment. After the pump has been properly set and aligned, the
INSTA LLA TION
installation will be approved by the Engineer, and the Contractor shall then accurately and securely anchor the pump surface discharge head to the concrete pump pedestal.
(2) In order to ensure the accurate and proper alignment of the pump, anchor bolts shall set only after the pump has been set and aligned. Anchor bolt holes may be formed in the concrete pedestal as the concrete is placed or may be drilled in the concrete after the concrete has set thoroughly, at the option of the Contractor. The anchor bolts to be provided by the Contractor shall be 5/8-inch (16 mm) diameter and 12 inches (300 mm) long with nut and lock washer, and shall be set in the anchor bolt holes with sufficient extension to permit the full threads of the nut to be engaged by the anchor bolt. The anchor bolts shall then be set in cement grout. Where holes are drilled after the concrete has set thoroughly, expansion bolts or lead expansion anchors may be installed at the option of the Contractor in lieu of grouting of anchor bolts.
(3) Cement grout shall be placed under the entire surface of the
discharge head to provide proper support for the pump. The cement grout shall be at least one inch thick and shall consist of one part Portland cement and three parts concrete sand by volume, with sufficient water to provide a workable consistency. All materials for grout shall conform to the applicable requirements set forth in the Specifications for Concrete.
5. 29 Installation of Discharge Pipe.
(1) Following installation of the pump, the discharge pipe shall be
installed and bolted to the pump discharge head. The discharge pipe shall be supported at the pump house wall so that the weight of the discharge pipe and fittings is not transferred directly or indirectly to the pump discharge head. The Contractor shall furnish and install a connection on each discharge pipe for the future installation of a pitot tube as shown on the Drawings and as directed by the Engineer. The pitot tube connection shall consist of a 3/4-inch drilled hole in the discharge pipe over which a 3/4-inch pipe coupling shall be set and aligned and welded to the discharge pipe and the coupling shall be fitted with a 3/4-inch pipe plug. The pitot tube connection shall be located a minimum of 8 pipe diameters from the centerline of the tubewell. The axis of the pitot tube connection shall be at right angles to, and shall intersect the axis of the discharge pipe.
5. 30 Installation of Motors.
(1) The motors shall be cleaned and adjusted as necessary in accordance with the manufacturer's recommendations and shall be placed on the pump surface discharge head, properly aligned and connected to the pump top shaft, and bolted in place.
(2) The electrical conduit shall be securely attached to the motoj terminal box and the electrical conductors shall be securely bolted to the motor terminals. The grounding conductor shall-be connected to a bolt type terminal within the motor terminal box.
5.31 Installation of Motor Controls and Wiring
(1) The installation of the motor controls and other electrical equipment and materials shall conform to the applicable requirements of the U.S. National Electrical Code unless otherwise modified by the Authority, and shall be installed as shown on the Drawings or as directed by the Engineer. The location of the motor controls and other electrical equipment and materials shown on the Drawings is not intended to restrict the installation of these devices to one particular position. Equipment may be located adjacent to other walls of the building, subject to the approval of the Engineer, to properly coordinate with the location of mechanical equipment and service drop
(2) The motor control cabinet shall be secured to the pump
house wall by bolts extending through the wall. The control cabinet shall be accurately aligned and plumbed at the time of installation.
(3); All wiring between the motor, motor controls and other
electrical equipment shall be run in zinc-coated rigid steel conduit. or flexible metal conduit as shown on the Drawings. Rigid steel conduit shall conform to ASA Specification C80.1, and allfittings therefor shall be in accordance with ASA Specification C80.4. The service heads shall accommodate four conductors and shall be of cast aluminum, cast or forged mild steel or a corrosion-resistant alloy and shall be complete with composition or bakelite cover. Fittings for flexible metal conduit and rigid conduit accessory fittings shall be in accordance with NEMW Publication PB-1. Conduit sizes shall be
adequate for the size and number of conductors for each circuit in accordance with the provisions of the U.S. National Electrical Code and as shown on the Drawings. However, conduits for service entrance and motor feeder circuits shall be not smaller than the following
V- 97 M-
Service Entrance Motor Feeder
Motor Conduit Diameter Conduit Diameter
Rated U. S. A. British U. S. A. British
HP (inches) (inches) (inches) (inches)
15 1-1/2 2 1 1-1/4
20 1-1/2 2 1-1/4 1-1/2
25 1-1/2 2 1-1/4 1-1/2
30 1-1/2 2 1-114 1-1/2
40 1-1/2 2 i-l/z 2
50 1-1/2 2 I-1/Z 2
60 2 2-1/2 2 2-1/2
75 2 2-1/2 2 2-1/2
100 2-1/2 2-1/2 2-1/Z 2-1/2
(4) The conduit and fittings shall be run exposed as shown on the Drawings and shall be supported as require ed. Suitable wall brackets or hangers shall be installed to support the motor feeder conduit when it is not connected to the motor. The ends of conduits shall be protected as required to prevent the entrance of concrete, sand or other foreign material during installation and afterwards. All conduit shall be installed with proper fittings and supports, and all bends shall be gradual and smooth to permit pulling of conductors without damage. The radii of all conduit bends shall be not less than that of standard or long radii bends for the applicable size, shall be free from kinks, indentations, or flattened surfaces and shall be installed so as to prevent damage to the protective coating. Bushings, chase nipples or approved connectors shall be installed on the ends of the conduit at boxes and cabinets to protect conductors from abrasion, and bond nuts shall be installed to provide tight ground connections between conduit and boxes and cabinets. Burrs and sharp corners at the ends of each piece of metal conduit shall be removed.
(5) One lighting fixture shall be provided in each pump house and shall consist of a metal conduit box, a porcelain or bakelite box cover with lamp socket and 100-watt lamp. The lamp shall be suitable for operation on a 230-volt, 50-cycle, single-phase power supply and shall have a bayonet base. The lamp sockets and lamps furnished shall be of such a design and construction that they may be readily replaceable in West Pakistan, and shall be of a type approved by the Authority. The lighting fixture box shall be securely mounted to the pump house wall in a location s that equipment in the building will present minimum obstruction to the light output. The fixture shall not be mounted on the ceiling nor shall any conduit, other than the removable motor feeder conduit, be routed across the ceiling.
(6) All wiring, for power, lighting and control circuits, shall be
single -conductor wire with a 600-volt rating and synthetic rubber insulation.
The insulation shall be heat and moisture resistant, synthetic rubber of
super aging property and shall conform to ASTM Designation: D1679 for operation in wet locations and at conductor temperatures up to 75 degrees Centigrade. The insulation thickness and cable construction shall conform to IPCEA Publication S-19-81, (NEMA WC 3) but in no event shall the insulation thickness be less than 3/64-inch (1.2 mm). Conductors shall be adequate for the connected load in accordance with the provisions of the U. S. National Electrical Code and as shown on the Drawings. However, the motor conductor size shall be not less- than the following for the applicable motor horsepower ratings:
Minimum Conductor Size
Motor Motor Feeder Service Entrance
Rated U. 9. British Metric U. S. British Metric
HP (AWG) -No.& Stranding (mm2) (AWG) No. & Stranding (mm2)
15 10 7/.044 6 8 7/.052 10
20 8 7/.052 10 8 7/.052 10
25 8 7/.052 10 6 7/.064 16
30 6 7/.064 16 6 7/.064 16
40 4 19/.052 25 4 19/.052 25
50 3 19/. 064 35 3 19/.064 35
60 2* 19/.064 35 2 19/.064 35
75 1/0 19/. 083 70 1/0 19/. 083 70
100 3/0 35/.072 95 3/0 35/.072 95
The neutral conductor of the service entrance shall be bare copper conductor No. 8 AWG or equivalent for 15 HP and 20 HP installations. and No. 6 AWG or equivalent for 25 HP through 100 HP installations. Control conductors -shall be not smaller than No. 14 AWG (British 7/. 029 or metric 2. 5 mm2). Signal circuit conductors shall be not smaller than recommended by the Manufacturer and shall be approved by the Engineer. All conductors shall be furnished complete with all connectors, clamps, bolts, nuts, washers, lugs, tape, and other accessories required for a complete installation.
(7) The Contractor shall pull all wires and cables into conduits and shall install clamps and supports where required. All wiring terminations shall be made with bolt-type connectors. Solder type lugs or connectors are not acceptable. Not less than 12 inches of each of the four service entrance conductors shall extend beyond the weather-head. A clean, dry, tight -fitting rag shall be drawn through each conduit immediately before installing the wire or cable. The conductors shall be pulled so that there will be no cuts or abrasions in the insulation or protective covering, or kinks in the conductors. No splices shall be made except at boxes or cabinets. Any wire or cable damaged during installation shall be removed and replaced at the Contractor's expense. All connections to cabinets, fixtures, and panels shall be carefully and neatly made.
(8) The Contractor shall install a 3/4-inch diameter by 8-foot long
(or metric equivalent) galvanized steel ground rod as shown on the Drawings. A No. 6 AWG (British No. 8 SWG or 16 mm2) ground wire shall be run from the ground rod to the motor control cabinet and shall be connected to the cabinet by means of a ground clamp. A No. 6 AWG (British No. 8 SWG or 16 mm2) ground wire shall also be run from the ground clamp in the motor control cabinet to the motor frame, and shall be routed through the flexible conduit with the motor feeder conductors to the motor terminal box where the ground cable shall connect to a bolt-type terminal. All conduits, conduit boxes, and cabinets shall be suitably bonded together and connected to ground. All grounding cables shall be annealed, bare copper cable. All concentric stranded cable shall be in accordance with ASTM Designation: B8, Class B. Individual wvires of stranded cable and solid grounding cable shall conform to ASTM Designation: B 3. All grounding cable fittings shall be of the solderless type and shall have a current-carrying capacity equal to that of the copper wire with which they are used. All fittings, lugs, connectors, bolts, nuts, and washers shall be copper, containing not more than four percent zinc or other alloying material. The neutral service conductor shall be grounded on the supply side of the service disconnecting device, and the service conduit shall be grounded near the service disconnecting device.
5. 32 Servicing.
(1) After all equipment and accessories have been installed, and iill adjustments made, they shall be serviced by cleaning, adjusting, and lubricating all parts of the.equipment in accordance with the manufacturer's instructions. The Contractor shall then demonstrate that all electrical and mechanical operations are in accordance with these Specifications to the satisfaction of the Engineer.
5. 33 Operation and Acceptance Tests.
(1) The operation and acceptance tests shall include a physical
inspection of each completed tubewell installation, testing of the insulation resistance of the electrical wiring, resistance measurement of the grounding system and an operating test of the pump, motor and motor controls, as a complete installation.
(2) The Contractor shall perform an insulation resistance test on
the motor windings to determine the condition of the insulation. The insulation resistance shall be determined by applying 1, 000 volts between phases and between each phase and ground; except in cases where the phase windings cannot be electrically separated, one test between the integrated windings and ground shall be performed. Those connections which form a through circuit to ground for the test voltage shall be disconnected during the test.
All control or signal conductors connected to the temperature sensing devices embedded in the motor shall be grounded during the insulation re sistance test.
(3) The Contractor shall perform an insulation resistance test on the completed wiring to demonstrate the adequacy of the insulation. The insulation resistance shall be determined by applying 1, 000 volts between conductors and between conductors and ground with all wiring devices in place and connected. Those connections which form a through circuit to ground for the test voltage shall be disconnected during the test. All control or signal conductors connected to the temperature sensing devices embedded in the motor windings shall be grounded during the time the insulation resistance tests are being performed. All instruments required to perform the insulation resistance tests shall be furnished by the Contractor. The insulation resistance to ground shall be approximately as follows:
U. S. British Metric Ohms to
(AWG) (No. & Stranding) (mm2) Ground
14 7/.029 2.5 1,000,000
12 7/.036 4 1, 000, 000
10 7/.044 6 250,000
8 7/. 052 10 250,000
6 7/.064 16 100,000
.4 19/.052 25 100,000
3 19/.064 35 100,000
2 19/.064 35 50,000
1/0 19/.083 70 50,000
3/0 37/.072 95 50,000
(4) The Contractor shall test the completed grounding system to demonstrate that the resistance to earth does not exceed 25 ohms and if necessary shall take such corrective action as directed by the Engineer to reduce the resistance to earth to the specified value. All instruments required for the grounding system tests shall be furnished by the Contractor.
(5) Upon completion of the electrical insulation resistance tests and grounding system test, the Contractor shall conduct an operating test of the complete installation to demonstrate that the equipment functions properly. The test shall consist of operating the equipment as a unit continuously for a period of two hours. If there is any indication during this period of defective materials or workmanship, the Contractor shall make any and all necessary adjustments or repairs, following which the acceptance test shall be re-run. The Contractor shall furnish all piping and gauges, orifices, meters, weir boxes, or other means of measuring the pump discharge and meters for measurement of power input, all of which shall be subject to the approval
of the Engineer. The Contractor shall give the Engineer 24 hours notice before conducting the test, and the Engineer or his representative will be present during all tests. The Contractor shall take drawdown and discharge measurements, power input readings, and other pertinent data during the test. All such data shall be recorded on forms furnished by the Contractor and approved by the Engineer. The originals of all such forms shall be delivered to the Engineer and will become the property of the Authority.
(6) The Contractor will be responsible for the disposition of all water discharged during the test and shall furnish electric power for operating the motor if the permanent power supply is not available at the time the test is run.
5. 34 Final Sterilization.
(1) Upon completion of the operation and acceptance tests to the satisfaction of the Engineer, the Contractor shall sterilize the tubewell by introducing and dispersing copper sulfate (CuSO4 5H20) at the rate of two pounds of copper sulfate per 100 feet of bore hole throughout the entire depth of the tubewell. The procedure and equipment used to introduce and disperse the copper sulfate into the tubewell shall be at the option of the Contractor, and shall be approved by the Engineer.
PROCUREMENT OF PERMANENT EQUIPMENT AND MATERIALS
STANDARDS AND DESIGN
(1) All materials and equipment shall be new, shall be the best available for the intended service, and shall be in accordance with the best engineering practice for which used, considering strength, ductility, durability, and suitability for the intended service. Workmanship shall be of the highest grade and in accordance with the best modern practice.
(2) The materials and equipment will be installed and operated in an area of high temperatures and humidity. All materials and equipment shall be selected, designed and manufactured for continuous operation under these conditions, using special materials and designs where necessary.
6.2 Standards and Specifications.
(1) All materials and equipment and the fabrication and testing thereof shall conform to the late st applicable standards and specifications contained in the following list of United States Standards:
ASTM American Society for Testing Materials
ASA American Standards Associatidn
NEMA -- National Electrical Manufacturers Association IPCEA Insulated Power Cable Engineers Association
IEEE -- Institute of Electrical and Electronic Engineers
(2) All materials and equipment and the fabrication and testing
thereof may also conform to the latest applicable standards and specifications of the following list to the extent that they are equivalent in every respect to those specified in sub-clause (1) of this clause:
BS British Standards Institution
DIN -- Deuts che -International Normen
VDE Verband Deutscher Elektrotechniker
(3) References to the above standards and specifications or to equipment and materials of a particular manufacturer shall be considered as followed by the words "or equivalent". The Contractor may furnish materials
and equipment conforming to approved alternative standards and specifications established and recognized in the country of manufacture of the equipment which shall be equivalent in every respect to those specified. All alternative standards and specifications or deviations from the above standards and specifications proposed by the Contractor for the materials and equipment to be furnished under these Specifications shall have been specifically stated by the Contractor in his Tender, and the Contractor shall submit such details and substantiation of the alternative standards and specifications as the Engineer may require to evaluate the equivalency thereof. The burden of proof of the comparative quality and suitability of alternatives or deviations shall be upon the Contractor, and the decision of the Engineer in the matter of equality will be final.
(4) All equipment and materials including threaded parts shall be in accordance with United States, British or equivalent metric standards, and all sizes, dimensions and other measurements shall be in English units or equivalent metric units.
6. 3 Drawings and Data to be Furnished by the Contractor.
(1) The Contractor, immediately upon placing an order with the manufacturer for permanent equipment and materials to be installed in, and made a part of the tubewells, shall so notify the Engineer in writing, requesting inspection and approval of the said permanent equipment and materials. Inspection of equipment and review and approval of assembly and installation drawings and other detail drawings by the Engineer will not be undertaken until such notification has been received by the Engineer. Any delay in inspection of equipment or approval of drawings due to failure of the Contractor to so notify the Engineer will not be considered as justification for an extension of time under the Contract.
(2) The Contractor shall, within 60 days after the Date of Contract, submit to the Engineer for approval six copies of assembly and installation drawings and six copies of descriptive information and data sufficient to demonstrate fully that all permanent equipment and materials to be installed in and made a part of the tubewells will conform to the requirements and intent of the Specifications. The drawings so submitted shall be in the form of prints from the original checked drawings, and shall be in sufficient detail-to provide all information necessary for installing, mounting and connecting of the equipment and materials. All drawings shall be adequately and properly checked before submittal to the Engineer and shall be so designated. All unchecked drawings received by the Engineer for approval will be "Returned for Correction". One print each of the drawings will be returned to the Contractor by the Engineer marked either "Approved, "Approved Except as Noted", or "Returned for Correction". The notations "Approved" or "Approved Except as Noted" shall authorize the Contractor to proceed with the manufacture and procurement of the equipment and materials covered by such drawings, subject to the corrections, if any, indicated thereon. When prints of drawings have been "Returned for Correction", the Contractor shall make the necessary revisions on the drawings and shall, within 30 days, submit prints for approval in the same manner as before.
(3) Any manufacturing done before approval of the drawings will be at the Contractor's risk. The Engineer shall have the right to require the Contractor to make any changes in the design which may be necessary, in the opinion of the Engineer, to make the equipment and materials conform to the requirements and intent of the Specifications without additional cost to the Authority. Approval of the Contractor's drawings shall not be held to relieve the Contractor of any part of his obligation to meet all of the requirements of the Specifications or of the responsibility for the correctness of his drawings.
(4) At the time of delivery of the equipment and materials, the Contractor shall furnish to the Engineer tw.2 complete sets.of reproducibles of all final drawings corrected as required. At the same time, the Contractor shall also furnish to the Engineer printed instructions in the English language for the installation,. operation, maintenance, and repair of the equipment and materials, and for identification of parts. Twenty-five copies of such instructions and data shall be furnished for each different size, capacity or rating of pumps, motors, and motor controls furnished under the Contract.
6.4 Inspection and Tests.
(1) All equipment and materials furnished and all work performed in connection therewith will be subject to rigid inspection by the Engineer or his representative at the manufacturer's plant to determine that the equipment meets the requirements of the Contract Documents. The Engineer, or his representative, shall be permitted to inspect all materials and equipment during its manufacture and fabrication and prior to its preparation for shipment; -to inspect packing when ready for shipment; to witness all factory tests of finished products; and to witness any or all-tests for which results are required under the Contract Documents to be approved by the Engineer.
(2) The Contractor shall notify the Engineer not less than 30 days in advance of the date and place that the materials, equipment, or parts will be available for each inspection or test. Acceptance of materials and equipment, or the waiving of any inspection or test or witness thereof, shall in no way relieve the Contractor of the responsibility of furnishing materials and equipment meeting the requirements of the Contract Documents.
(3) The Contractor shall furnish the Engineer or his representative with four certified copies of reports of tests of all materials used in the manufacture and fabrication of pump housing and tubewell casing, pumps, motors, motor controls, meters and accessory equipment. The results of these tests shall be in such form as to show compliance with the applicable specifications for the material used. All costs of tests and reports for materials shall be borne by the Contractor.
(4)~ A laboratory test at the manufacturer's plant, witnessed by the Engineer or his representative, will be required for each size of pump furnished by the Contractor for each head range, and four certified copies of the test results in the form of performance curves shall be furnished to the Engineer or his representative.
Laboratory tests of pumps, identical. to pumps whicn have previously been tested and accepted, may not be -required, hut four certified copies of guaranteed performance curves shall be furnished in lieu thereof. The tests of all pumps shall be conducted in accordance with ASA Specification B58. 1. The motors, motor controls, meters and lighting circuit breakers furnished by the Contractor shall be given routine and production tests in accordance with the manufacturer's standard practice. In addition, a representative number of motors, motor controls, meters and lighting circuit breakers of each size, as determined by the Engineer, shall be given an operati- test at the manufacturer's plant. These tests shall be witnessed by tlh Frgin eer r his representative to confirm tnat they are in accordance with ti*e requirements of these Specifications. Four certified copies of the test result- sh l1 be furnished to the Engineer or his representative. Tests of electric I equipmlent items which are identical to those which have previously been te t d and accepted -nay not be required, but four certified copies of guaranteed p.r.orancu data s;call be furnished in lieu thereof. The costs of all tests and reports IOr equipment furnished under these Specifications shall be borne by the Ctractor.
6.5 Design of Equipment.
(1) The Contractor pm rocure pnmp2, motors, motor controls, meters, and other equipment from various manufacturers; however, the Contractor shall nevertheless be solely responsible for the adequate design and coordinated functioning of all equipment furnished by him under these Specific'1ions. The design requirements specified indicate thc va rious required conditions of performance, together with maximum and mirn Qium capacities, iieads, horsepower, sizes, and dimensions. The Contractor s.Ll be responsible for the compliance with all design and performance crite ria. ro the nd that the equipment shall conform to the best engineering practice tie Operating conditions specified. Liberal factors of safety shall b :.ec 11 rou.out the design, especially in the design of components subject to altern'tin" tresses or shock. The Contractor shall be responsible to ensure iat. a of The : component parts of the equipment shall be so designed for the proper o.,)rdinration of function and operation, and that similar parts are interchangcahle anu that the various components and assemblies can be interconnected without modification or special devices.
6.6 Instruction Plates ;,.no arkis.
(1) All gauges, meter, and instruments shall have dials or scales
calibrated in English'units. All namne .phaies, instruction plates, warning signs, and any markings whatever on the equipment and its parts and accessories shall be in the English language. If so requested by the En.rgineer, the English markings to be used shall be submitted to the Engineer for approval before the equipment is marked or labeled. All equipment shall have a permanent metal name plate securely fastened to the equipment to which it pertains. The name plate shall contain sufficient information to permit proper identification of the equipment.
(2) All pump bowl assemblies, surface discharge heads, electric
motors, motor control cabinets, and other equipment as necessary shall be plainly and permanently marked with a serial number or other means corresponding to the rated capacity, Pump Total Head, and horsepower, as applicable. In addition, each motor and pump surface discharge head and motor control cabinet shall be affixed with the manufacturer's name plate giving all necessary data and information regarding size, capacity, head, horsepower and electrical characteristics.
6. 7 Shop Assembly.
(1) To the greatest extent practicable, all equipment shall be shop assembled at the manufacturer's plant for delivery to the job site ready for installation. Shop assembly of the equipment and its various components may be accomplished either at the manufacturer's plant in the country of origin of the equipment or in an assembly plant in Pakistan provided for this purpose. The above statement or any other statement in the Specifications shall not prohibit the complete manufacture and assembly of any equipment in Pakistan, provided the requirements of the Contract Documents and these Specifications have been met.
(2) The complete shop assembly of each pump, consisting of bowl assembly, pump column shaft, discharge head and appurtenances will not be required. However, if requested by the Engineer or his representative, a sufficient number of pumps shall be completely assembled to assure proper fit and clearances. Each pump bowl assembly, including suction, intermediate and discharge bowls; impellers, bearings; shaft; and seals shall be completely assembled in the shop and inspected and delivered to the job site as a unit ready for installation on the tubewell. Each surface discharge head and its component parts shall be shop assembled to the greatest extent practicable for shipment, and the various component parts shall be assembled and adequately boxed for delivery at the tubewell site ready for installation on the tubewell. The column pipe, line shaft, bearings, and spacers shall be shop assembled in nominal, 10-foot (3. 0 m) lengths and delivered at the job site for installation. The ends of the column pipe assemblies shall be provided with protectors at the shop to protect threads and to prevent the entry of foreign material.
(3) Each electric motor shall be completely shop assembled and inspected and tested for proper functioning and clearances, and shall be delivered ready for installation at the tubewell site.
(4) Each motor control cabinet shall be completely assembled and wired in the shop with all equipment installed and shall be inspected and tested in the shop for delivery at the tubewell site ready for installation. The structural steel supports for the motor control cabinet shall be assembled to the cabinet in the field.
S. 8 Painting.
(1) All equipment, upon completion of manufacture and fabrication, shall be thoroughly cleaned and painted. All grease, oil and dirt shall be removed by the use of solvent, and all rust, mill scale, weld spatter or other foreign substances shall be removed by sandblasting, gritblasting, or other effective means. After cleaning, all motor control cabinets, structural steel supports, electrical motors, discharge pipe, and pump surface discharge heads shall be given one coat of Alkyd priming paint and two coats of medium-length oil, modified glycerylphthalate base machinery paint of a color to be approved by the Engineer.
(2) The exterior surfaces of the pump bowl assemblies and column pipe shall be given two coats of a cold-applied, coal-tar type paint suitable for protection during shipping and installation, as approved by the Engineer. All finished, unpainted surfaces that will be exposed to the atmosphere during shipment or while awaiting installation, shall be given a heavy, uniform coating of gasoline-soluble rust preventive compound.
6. 9 Preparation for Shipment.
(1) Preparation for and shipment of equipment and materials from the manufacturer's plant to the site shall not be made by the Contractor until a Certificate of Inspection has been issued by the Engineer or his authorized representative. Unauthorized preparation and shipment of equipment and materials before issuance of a Certificate of Inspection will be considered as sufficient and adequate grounds for the rejection of such equipment and materials.
(2) After issuance of the Certificate of Inspection, the equipment shall be boxed, crated or otherwise prepared for shipment in a manner that will ensure against any damage to the equipment in transit from the manufacturer's plant to the tubewell site. Double boxing to give extra protection to the equipment against mechanical injury shall be provided if required. All parts requiring protection from moisture, including polished parts which have been coated with a rust-preventive compound, shall be double-boxed with tarpaper or sisal kraft paper inserted between the layers of boxing. All small and loose parts and miscellaneous materials shall be boxed for shipment in a manner that will prevent loss and permit. ready and complete identification.
6. 10 General.
(1) Pumps shall be of the vertical turbine type for installation and operation in tubewells and shall be suitable for use with vertical, hollowshaft, squirrel cage, induction type, electric motors. Pumps shall comprise the pump bowl assembly, column pipe, line shaft and surface discharge head assembly, including a manually operated water prelubrication system, and all other parts and appurtenances to provide a complete operating pump in accordance with these Specifications.
6. 11 Design.
(1) The materials, design, fabrication and assembly of the pumps shall be in strict accordance with the applicable provisions of these Specifications and shall conform to the standards listed herein or to equivalent standards of the country of manufacture. The Contractor shall furnish all data, drawings and warranties as required by these Specifications.
(2) The pumps shall be designed and manufactured to meet the rated performance characteristics specified herein. Pump rated performance characteristics are defined in accordance with ASA Specification B58. 1 as follows:
(a) Capacity: The volume rate of flow produced by the
pump for specified conditions.
(b) Head or Pump Total Head: The energy imparted to the
liquid by the pump minus the column loss and discharge
(c) BovAl Assembly Efficiency: Ratio of the pump bowl
assembly output to the pump bowl assembly input,
expressed in percent.
(3) The rated pump capacity in cubic feet per second shall be not less than that specified at the Pump Total Head. The pump bowl efficiency shall be not less than 80 percent at the Pump Total Head nor less than 75 percent at 10 feet less than Pump Total Head.
(4) The pumps shall be of the vertical turbine type for installation and operation in tubewells and shall be suitable for use with vertical, hollow-shaft, squirrel cage, induction type motors. All pumps shall be
water-lubricafed with open line shafts and shall be designed and manufactured in strict accordance with all the provisions of ASA Specificaton B58. I for water lubricated, line shaft type, vertical turbine pumps except as specifically modified herein.
(5) The pumps to be furnished under these. Specifications shall be single- or multi-stage pumps designed for the installation of additional stages, as required, to maintain the rated discharge as the pumping head increases. The pumps shall be designed to provide at least rated discharge under the design head conditions and shall have a minimum change in capacity for a given change in head. The pumps furnished shall be suitable for installation on the pump pedestal shown on the Drawings with no detrimental effect on pump performance.
(6) The required pump performance at each Pump Total Head may be obtained by changing or trimming impellers to maintain efficiencies not less than those specified herein.
(7) The sizes and dimensions of pump column, pump bowls, line shaft, and discharge diameter may be in accordance with the pump manufacturer's standard practice, but shall in no case be less than the minimum dimensions specified in the General Conditions. Not more than two sizes of pump column, line shaft, and discharge pipe shall be furnished throughout the range of pumps specified.
6. 12 Pump Bowl Assembly.
(1) Each pump bowl assembly shall consist of a suction bowl,
intermediate bowls, and a discharge bowl within which the pump shaft and impellers shall be mounted. The suction bowl, intermediate bowls and discharge bowl shall be constructed of cast iron, conforming to ASTM Designation: A48, Class 30A. The interior surface of the bowls may be coated with porcelain enamel.
(2) Each suction bowl shall be fitted with a grease-packed bronze bearing and suction case plug. A suction case sand collar shall be provided to protect the bearing. Each pump bowl shall have a bronze or fluted rubber bearing above each impeller and shall be designed for the future installation of bronze or cast iron wear rings. Each discharge bowl shall be equipped with a bronze bearing.
(3) The pump shaft shall be of stainless steel, conforming to ASTM Designation: A276, Type 416, and shall be of suitable size to transmit the loads and to maintain correct alignment without distortion or vibration. The pump shaft shall be turned, ground, and polished and shall be threaded for connection to the line shaft.
(4) The pump impellers shall be the enclosed type and shall be of bronze conforming to ASTM Designation: B145, Alloy. 4A. The impellers shall be statically balanced and shall be securely fastened to the pump shaft by means of tapered steel collets.
6. 13 Column Pipe and Line Shaft.
(1) The column pipe shall be furnished in interchangeable sections having a nominal length of 10 feet (3. 0 m) and shall be welded or seamless steel pipe conforming to ASTM Designation: A53. The ends of each column pipe section shall be faced parallel and perpendicular to the axis of the pipe. The threads shall be machined so that the adjoining sections of column pipe will baxtt against one another or against the bearing retainer to ensure proper alignment on assembly. The weight per foot of plain end column pipe shall be not less than that specified in ASA Specification B58. 1 for the specified nominal size column pipe.
(2) The line shaft shall be ground carbon steel shafting conforming to ASTM Designation: A108, Grade 1020 or 1045. The line shaft shall be furnished in interchangeable sections having a nominal length of 10 feet (3. 0 m). The ends of the shaft sections shall be faced parallel and perpendicular to the axis of the shaft. Adjoining sections of the line shaft shall be connected by means of steel, threaded, sleeve-type couplings designed to tighten under pump operation.
(3) The line shaft shall be supported by fluted, oil-resistant, rubber bearings designed to.be lubricated by the water being pumped. The bearings shall be mounted in bronze bearing retainers which shall be threaded into the column couplings and butted against the adjoining sections of column pipe. The rubber bearings shall be replaceable within the bronze-bearing retainers and shall be spaced at intervals of not more than 10 feet (3. 0 M) along the line shaft.
(4) A pump top shaft and adjusting nut shall be furnished for
connection to the top section of line shaft and to the vertical, hollow shaft electric motor. The pump top shaft shall be either ground carbon steel conforming to ASTM Designation: A108, Grade 1020 or 1045 or stainless steel conforming to ASTM Designation: A276, Type 416. If a carbon steel top shaft is furnished, it shall be protected by a stainless steel sleeve where it passes through the packing box and packing box bearing. The adjusting nut shall be sealable.
6.14 Surface Discharge Head Assembly.
(1) Each surface discharge head shall be of the above-ground type and shall be a suitable base for supporting the specified electric Inotor and the purmp column. The mounting flange of the pump discharge head
(NEMA Motor Dimension "BD") shall have a base diameter of 16. 5 inches (419 mm) for all sizes of pumps. The discharge head shall be of cast iron conforming to ASTM Designation: A48, Class 30A, or of cast steel conforming to ASTM Designation: A27. The diameter of the water passage through the elbbw shall be at least equal to the diameter of the discharge pipe specified. Each surface discharge head shall be furnished with an integral ASA 125 pound flange facing for connection to the discharge pipe flange. The discharge head shall be provided with a. shaft packing box, renewable bronze bushing, prelubrication connection and a well vent. The well vent shall be a minimum of 1 inch (25 mm) in diameter and shall be located so that it may be readily used for water level measurement and for the addition of chemicals to the tubewell. The base of the surface discharge head shall be provided with four bolt holes, 13/16-inch (20 mm) in diameter for anchoring the surface discharge head to a concrete pump pedestal.
6. 15 Prelubrication System.
(1) The Contractor shall furnish a manually operated, water
prelubrication system complete with all valves, piping and storage tank for each water lubricated pump furnished. The prelubrication system shall be adequately sized to provide sufficient water for lubrication of the bearings during pump start up and until the normal lubrication is established. The pipe for prelubrication system shall be complete with all necessary valves, lines and fittings to permit filling of the prelubrication tank from the pump discharge and to permit the water to be manually released prior to starting the pump. The prelubrication tank shall be an enclosed tank of sufficient size to adequately lubricate the line shaft bearings during pump start up and shall be equipped with an opening in the top through which it may be filled from an external source.
6. 16 General.
(1) Motors shall be vertical, hollow shaft electric motors and shall be suitable for connection to and operation of vertical turbine type pumps installed in tubewells. Motors shall include all parts and appurttenances to provide, when connected to the pump, a complete operating unit in accordance with these Specifications.
6. 17 Design.
(1) The materials, design, fabrication and assembly of the motors shall be in strict accordance with the applicable provisions of these Specifications and shall conform to the standards listed herein or to equivalent standards of the country of manufacture. The Contractor shall furnish all performance curves, data, drawings and warranties as required by these Specifications. The motors shall be designed and manufactured to meet the rated performance characteristics. specified herein.
(2) The motors shall be suitable for use with line-shaft vertical
turbine pumps having a threaded top shaft and adjusting nut. The mounting flange shall be in accordance with NEMA Publication MG 1 and shall have a base diameter (NEMA Motor Dimension "BD") of 16. 5 inches (419 mm).
(3) The pump motors shall be vertical, hollow shaft, weather-protected or totally enclosed, squirrel cage, induction-type motors conforming to NEMA Publication MG 1, "Motors and Generators", for a Design B polyphase motor. The motors shall be rated 380-volts, 3-phase, 3-wire, 50-cycle,. 1500 synchronous RPM for operation on a nominal 400-volt system. The windings shall have NEMA Class B insulation and shall be suitable for operation under conditions of high humidity as specified herein. The motors shall have a service factor of not less than 1. 0 and a temperature rise by the resistance method at rated load not exceeding 80 degrees Centigrade at an ambient temperature of 40 degrees Centigrade. Motor efficiency at rated speed and horsepower shall be not less than 87 percent after correction for the added motor bearing losses due to the added thrust and mechanical loads of the pump and shaft assemblies.
(4) Each motor shall be equipped with three inherent thermal protective devices, one embedded in each phase of the stator winding. These devices shall operate on high temperature to de-energize the control circuit of the motor thus disconnecting it from the power source. The
tripping temperature will be determined by the Engineer at the time drawings are submitted for approval. The thermal devices shall be so located in the winding and so constructed that they will prevent motor damage due to overheating resulting from overload, lack of ventilation, single phasing, stalling, high ambient temperature, voltage unbalance, or low voltage.
(5) The motors shall be so designed and constructed that they will
withstand the temperatui-es and stresses resulting from their 3-phase locked rotor current for a period of not less than 18 seconds at an ambient temperature of 40 degrees Centigrade under motor "cold start" conditions. However, the motor "withstand time" shall be greater than the tripping time of the current sensing thermal overload relays and the motor inherent protective devices under the stated operating conditions.
(6) The pump motors shall be designed for mounting on the pump
surface discharge head and for direct connection to the pump line shaft. A thrust bearing of adequate capacity to carry the weight of all rotating parts, plus the hydraulic thrust of the pump shall be provided in each motor. The motors shall be equipped with ball or roller bearings and shall be provided with a complete oil or grease lubricating system, including all necessary sight gauges and fill and drain connections for each bearing. Each motor shall be provided with a non-reverse ratchet to prevent reverse rotation of the pump.
(7) Each motor shall be equipped with a terminal box of adequate size to accommodate the three power conductors and their terminal connectors, the No. 6 AWG (British 7 /.064 or 16 mm2) bare copper ground wire and the control or signal conductors associated with the motor inherent protective devices. A bolt-type grounding terminal shall be provided inside each terminal box for connection of the No. 6 AWG (British 7 /. 064 or 16 mm ) bare copper ground wire. The conduit opening in each terminal box shall be suitable for slip-connection of a conduit of the size specified on the Drawings.
(8) The motors as specified above are to -be rated at an ambient
temperature of 40 degrees Centigrade. However, the application of motors for operating the pumps shall be made on the basis of a 50-degree Centigrade ambient temperature and: the motors shall be capable of operating the pumps continuously at the pump design capacity and pump total head as well as at any operating condition of pump head and capacity with the pump operating at 1470 RPM, without exceeding a 70-degree Centigrade rise (by resistance measurement) above the 40-degree Centigrade nameplate ambient tempera-. ture.
6. 18 Shop Tests.
(1) The routine and production tests to be performed on each motor shall include, but not be limited to, those tests described in NEMA Publication MG-1-1963, Sections 12. 47 and 12. 49.
(2) Performance tests shall be made on one percent (rounded to
the next highest whole number) of each size of motor and shall include, but not be limited to, the following:
(a) Performance tests described in NEMA Publication
MG-1-1963, Section 12.48.
(b) The motors shall be given a 3-phase locked rotor current
test for not less than 18 seconds-and shall subsequently
be tested and dismantled and inspected for obvious damage.
Maximum motor temperature shall be recorded.
(c) The tripping operation of the inherent protective devices
shall be tested under motor locked rotor conditions to
demonstrate compliance with the Specifications. Tripping
temperature and maximum motor temperature shall be
(d) The tripping operation of the inherent protective devices
shall be tested under motor running overload conditions
using a current of approximately 200 percent of motor
rated full load current. Tripping temperature and maximum motor temperature shall be recorded.
MOTOR CONTROLS6.19 General
(1) Motor controls shall be enclosed control stations for
installation in tubewell pump houses and shall be suitable for use with and controlling vertical, hollow shaft, squirrel cage, inductiontype electric motors. Motor controls shall consist of a combination motor starter and push-button control station, a 3-phase watthour meter, a lighting circuit breaker and all other parts and appurtenances to provide a complete operating motor control unit in accordance with these Specifications.
(1) The materials, design, fabrication and assembly of the motor controls shall be. in strict accordance with the applicable. provisions of
these Spedifications and shall conform to the standards listed herein or to equivalent standards of the country of manufacture. The.Contractor shall furnish all performance curves, data, drawings and warranties as required by these Specifications. The motor control shall be designed and manufactured to meet the rated performance characteristics specified herein.
(2) The motor controls for each motor shall consist of a combination motor starter and push-button control station together with one 3-phase watthour meter and a lighting circuit breaker with all necessary components for a complete installation, all enclosed in a metal cabinet. The combination motor starter shall consist of a circuit breaker,
magnetic starter and current-sensing thermal overload relays.
(3) Each motor control shall be designed for operation on a 400-volt system to control and protect a 380-volt, 3-phase, 3-wire, 50-cycle electric motor of the designated horsepower rating and to measure and totalize the power consumed at each tubewell. Motor controls shall be furnished in complete accordance with the applicable provisions of NEMA Publication IC-1, "Standard for Industrial.Controls", and shall have a minimum insulation level of 600 volts. The control shall be suitable for full voltage aoross-the-line starting.
(4) The control scheme associated with the temperature sensors emb4 ded in the motor findings shall be of "fail safe design so that opening of the control or signal circuit between the sensors in the motor and the
tripping device in the control cabinet will cause the motor power circuit to be de-energized. The control scheme shall not rely on the completion of a circuit to effect de-energization of the motor.
6. 21 Main Circuit Breakers.
(1) The main circuit breakers shall be of the magnetic-trip type with tripping elements designed to open the circuit breaker without intentional delay and shall be set to trip at approximately eleven times motor full load current. Tripping elements shall be provided in all three phases.
(2) The magnetic trip elements may be of the adjustable or fixed type. If adjustable, the adjustment device must be externally accessible (external to the circuit breaker case) and shall be so designed to set the trip point within the range of eight to fifteen times motor full load current. If the trip elements are of the fixed setting type they shall be set to trip at approximately el-even times motor full load current; however, ratings and characteristics will be subject to the approval of the Authority for each motor size as these devices must coordinate with line fuses to be supplied by others.
(3) The circuit breakers shall be in accordance with the applicable portions of NEMA Publication No. AB- 1 and shall have a continuous current rating of not less than 115 percent of motor current at rated load, but in no case shall be less than the following:
Motor Continuous Capacity
Rated Current Symmetrical rms
HP Amperes Amperes
15 25 3,000
20 40 4,000
25 40 4,000
30 60 5,000
40 100 5,000
50 100 5,000
60 100 5,000
75 200 5,000
100 200 6,000
(1) Each magnetic contactor shall be rated 3-pole, 400-volt, 50-dycle, witl' a continuous horsepower rating not less than that of the motor with which it will be used. Each contactor shall have not less than one auxiliary contact connected electrically to maintain the control circuit in the energized condition upon momentary energization of the contactor coil. The contactor coils shall be suitable for use on a. 400-volt, 50-cycle, control circuit and shall have insulation suitable for use in a 50-degree Centigrade ambient.temperature.
(2) The magnetic starters shall be suitable for use under the specified service conditions and shall be of the following sizes:
Motor Magnetic Starter
Rated NEMA Standard
6. 23 Thermal Overload Relays.
(1) Overload protection shall be provided in all three phases by means of current sensing thermal overload relays. The thermal overload elements shall be matched to the full load ratings of the corresponding motor to be controlled. The overload relays shall be of the "Quicktrip" type and their speed of response to motor line current shall be generally in accordance with the following:
Percent Tripping Time
of Relay Setting of Overload Relay or Rated Current (Seconds)
150 140 190
170 85 120
300 17 30
500 6 12
600 5 10
(2) The tripping time of the overload device must be less than the withstand time of its corresponding motor.
6. 24 Watthour Meters.
(1) Each motor control unit shall contain one 3-phase watthour
meter which shall be suitable for operation on a 400-volt, 3-wire, 3-phase, 50-cycle, alternating current power supply and shall have sufficient continuous capacity for the motor full load current rating and the single-phase lighting load. The meters shall be the two-element type with five-dial cyclometer registers calibrated to read in kilowatt-hours.
(2) All watthour meters shall conform to the applicable portions of NEMA Publication E 1-20, and shall be securely mounted in the motor control cabinet so as to be readable from the front without opening the cabinet door.
6. 25 Lighting Circuit Breakers.
(1) The lighting circuit breakers shall be suitable for operation on a 230-volt, single-phase, 50-cycle alternating current power supply, shall have a minimum interrupting capacity of 1, 500 amperes, and shall be in accordance with NEMA Publication AB 1.
(2)y The circuit breakers shall be rated not smaller than 4 amperes nor larger. than 6 amperes.
(1) Each motor 'control unit shall be furnished assembled with all component parts and accessories completely interconnected and wired to bolt-type terminal connectors for all incoming and outgoing power cables. Terminal blocks shall be provided for terminating control or signal wiring from the motor inherent protective devices.
(2) All insulated wiring, for power, lighting and control circuits, shall be single-conductor wire with a 600-volt rating and synthetic rubber insulation. The insulation shall be heat and moisture resistant, synthetic rubber of super aging quality conforming to ASTM Designation: D1679 for operation in wet locations and at conductor temperatures up to 75 degrees Centigrade. The insulation thickness and cable construction shall conform to IPCEA Publication S19-81, (NEMA WC 3) but in no event shall the insulation thickness be less than 3/64-inch (1. 2 mm).