TRADE AND DEVELOPMENT BANK (TDB)

Transcription

1 TRADE AND DEVELOPMENT BANK (TDB) TENDER DOCUMENT FOR BOREHOLE DRILLING AND EQUIPPING ON PLOT L.R NO. 1/184 LENANA ROAD NAIROBI TENDER NO. TDB/NOD/01/01/17 ARCHITECTS PLANNING SYSTEMS SERVICES Chartered Architects & Land use Planners P.O. BOX NAIROBI, KENYA STRUCTURAL / CIVIL ENGINEERS CIVIL ENGINEERING DESIGN LTD Consulting Engineers P.O. BOX NAIROBI, KENYA QUANTITY SURVEYOR MASTERBILL INTEGRATED PROJECTS Construction Cost Planning & Management, Quantity Surveying P.O. BOX NAIROBI, KENYA SERVICES ENGINEERS GEDOX ASSOCIATES Services Engineers P. O. Box NAIROBI, KENYA OCTOBER 2017

2 Table of Contents TENDER NO. TDB/NOD/01/01/ Table of Contents... 2 PART 1 TECHNICAL BID ) STATUTORY REQUIREMENTS/ CAPACITY ) TECHNICAL REQUIREMENTS/CAPACITY ) REQUISITE EXPERIENCES ) FINANCIAL CAPACITY ) QUALITATIVE REQUIREMENTS... 6 PART 2 FINANCIAL BID... 7 INSTRUCTION TO TENDERERS... 8 FORM OF TENDER... 9 DEFINITION OF TERMS PARTICULAR SPECIFICATIONS FOR BOREHOLE DRILLING AND EQUIPPING Purpose Scope of the Work Local Conditions Borehole Data Casings Screens Grouting Construction Method Gravel Pack Cementation Development Test Pumping Sample Formation Water Samples Reports Cessation of Work Supply and Installation of Pump Electrical works BILLS OF QUANTITIES NOTES ON BILLS OF QUANTITIES LETTER OF ACCEPTANCE FORM OF AGREEMENT PERFORMANCE BANK GUARANTEE (UNCONDITIONAL)

3 INTRODUCTION Trade and Development Bank (TDB), is a specialized African multilateral financial institution serving most of the Eastern and Southern Africa. The Bank s objective is to provide short, medium and long term financing to viable projects and trade finance activities in member states. TDB has acquired acres approximately 4,255 square meters parcel of land on Lenana Road Nairobi opposite the Sri Lanka High Commission. The Bank is desirous of developing this site into a modern High Rise19 storey office Building and has procured an Iconic design concept from a leading firm of Architects. As part of the process in preparation for construction, TDB would like to enlist the services of competent NCA 2 CONTRACTOR through competitive tender process to drill and equip a borehole in the above site. The tender is in two part:- Part 1 Technical Bid Part 2 Financial Bid Technical tender constitutes 60% while financial tender 40%. Documents shall to be delivered in two hard copies, Sealed and clearly marked as PROPOSED BOREHOLE DRILLING AND EQUIPPING ON PLOT L.R NO. 1/184 LENANA ROAD, NAIROBI, FOR TRADE AND DEVELOPMENT BANK. Submissions are expected to reach on or before the close of business on 8 th November 2017 addressed to: Mr. Kifle Hamza, Chief Program Manager, Nairobi Office Development Project, Trade and Development Bank (TDB); 197 LENANA PLACE, LENANA Rd., 1st Floor, P.O. BOX , NAIROBI- KENYA 3

4 PART 1 TECHNICAL BID 4

5 The following information shall be provided as explicit as possible:- 1) STATUTORY REQUIREMENTS/ CAPACITY a) Evidence of due registration with relevant Licensing and registration bodies b) Evidence of due registration with relevant statutory bodies and letters of authority from relevant bodies. c) Company Physical locations, Branches Legal Domicile d) Evidence of capacity to work in Kenya. e) Letters of Agency, Representation, Distributorship etc for equipment manufacturers etc. f) List of Directors with contacts of at least 2 directors. g) Evidence of adequate insurance risk covers and policies. 2) TECHNICAL REQUIREMENTS/CAPACITY a) Listing of staff and personnel resources and technicians etc (qualification should be relevant to the scope of works) b) Listing of plant, machinery, equipment and testing resources. (attach prove ownership) c) Listing of current relevant ongoing jobs/projects. d) Litigation and Arbitration history. e) Occupational Health and Safety arrangements. 3) REQUISITE EXPERIENCES a) Evidence of recent (ongoing/current up to 5 years) successful borehole drilling particularly in Nairobi b) Evidence of successful experiences with latest construction and equipment technological developments and trends as applicable 5

6 4) FINANCIAL CAPACITY a) Financial Statement Summaries of the last 2 years/management accounts, audited, signed and stamped. b) Evidence of adequate working capital demonstrated by letters from banks, lines of credit and support letters from key suppliers. 5) QUALITATIVE REQUIREMENTS a) Evidence of an unblemished record (Ethical conduct and integrity) and related declarations. b) Any other capacity/quality the firm may wish to make known Interested firms are requested to submit the following: 1. Duly updated company profiles and their website links 2. Submission document with all the requirements detailed above. 3. Duly priced financial tender SUBMISSION OF TENDERS The tenderer shall seal the original and 1copy of the Financial and Technical tender documents in separated envelopes, duly marking the envelopes as ORIGINAL and COPY. The envelopes shall then be sealed in an outer envelope. In the event of discrepancy between them the original shall prevail. The original and copies of the tender shall be typed or written in indelible ink and shall be signed by a person or persons dully authorized to sign on behalf of the tenderer, The inner and outer envelopes shall be addressed to the Employer at the address stated in the introduction and bear the name and identification of the Contract with a warning not to open before the date and time for opening of tenders. 6

7 PART 2 FINANCIAL BID 7

8 INSTRUCTION TO TENDERERS 1. Tenders shall be submitted on the form of tender attached hereto and all blanks in this form and in the schedules attached to the specification shall be completed. 2. No alteration shall be made on the form of tender or in the specification and schedules. 3. The tenderer (whether his tender is accepted or not) and all other recipients of the specification and documents shall treat the details of specification and the documents attached thereto as private and confidential. 4. The employer does not bind himself to accept the lowest or any tender and will not be responsible for or pay for expenses or losses which may be incurred by any tenderer in the preparation of his tender. 5. It will be presumed that the tenderer will have visited the site, and to have taken into consideration any special difficulties and requirements not referred to herein but associated with a new plant being installed to serve new or existing buildings, as the case may be, and to have made allowance for such in this tender. 6. All tenderers shall return tender and all accompanying documents duly completed and enclosed in a sealed envelope marked: - TENDER FOR PROPOSED BOREHOLE DRILLING & EQUIPING FOR TRADE AND DEVELOPMENT BANK (TDB) ON PLOT LR. NO. 1/184 LENANA ROAD, NAIROBI The tender must be received not later than the time, date and at the address and the day stated in the covering later. Tenders received later than the date specified above shall not be considered. 7. All items of additional information, issued to tenderers prior to the time for closing the bids, shall become a part of the Contract Documents and shall be included in the proposals. 8. The tenderer shall, where applicable, provide leaflets and catalogues giving technical and physical details of the fittings being offered by him as an integral part of his bid. 9. Unless otherwise specified in the particular specification, Tenderers shall assume that all fittings required will be Import Duty Paid. 8

9 FORM OF TENDER Dear Sir/Madam RE: PROPOSED BOREHOLE DRILLING & EQUIPING FOR TRADE AND DEVELOPMENT BANK (TDB) Having examined and understood all the specifications, conditions of contract, Bill of Quantities and all other relevant documents for the above works and having obtained all the necessary information affecting this tender, we the undersigned hereby offer to execute and complete to the satisfaction of the Services Engineer the whole Borehole drilling and equipping works herein stated for the sum of Kenya Shillings: - (KSHS: -. ) We undertake, if this tender is accepted to execute a formal Contract Agreement with the Client in the terms shown in tender documents and to submit the name of an approved surety who will be willing to be bound to the client for the said works in an amount equal to 10% of the Contract amount. We understand and agree that the employer is not bound to accept the lowest or any tender. Our offer is valid for acceptance within ninety (120) days from the date of this tender. Signed: Date: Completion Period:.. Name and Address with Official Stamp:. Witness: Signed:.. Address:. Date: 9

10 DEFINITION OF TERMS Throughout this document, the following terms shall be interpreted as follows:- Employer: TRADE AND DEVELOPMENT BANK (TDB), P.O. BOX NAIROBI and shall include their legal personal, representatives or successors. Architect: PLANNING SYSTEMS SERVICES LTD, P.O. BOX NAIROBI and shall include their legal personal, representatives or successors. Quantity Surveyor: MASTERBILL INTEGRATED PROJECTS LTD, P.O. BOX NAIROBI and shall include their legal personal, representatives or successors. Civil/Structural Engineers: CIVIL ENGINEERING DESIGN (K) LTD, P.O. BOX NAIROBI and shall include their legal personal, representatives or successors. Services Engineers: GEDOX ASSOCIATES LTD P.O Box NAIROBI and shall include their legal personal, representatives or successors. 1. Borehole Contractor : Shall mean the person or persons/partnership, company whose Tender for this work has been accepted and Who has signed a Contract Agreement with the client, and shall include his or their legal personal representatives or successors. 2. Contract Works: Shall mean all the portion of the work, materials and articles, whether the same is to be used in the execution of this contract and whether the same may be on site or not. 3. Site: The site of the proposed works is ON PLOT LR. NO. 1/184 ALONG LENANA ROAD, NAIROBI 4. Contract The particular and preliminaries of the Bills of Quantities for the main contract where appropriate shall apply equally to the successful tenderer for this scope and should examine these sections of the Bills and allow for all costs incurred. 10

11 Appendix to the Schedule of conditions of Main contract The appendix to the Conditions of Main Contract has been completed as Follows: - Defects liability period Date of possession Date of practical Completion 12 months from certified Practical completion of works. In accordance with the Program of works In accordance with the Borehole Contractor s Program Liquidated and Ascertained Damages Shilling Sixty Thousand per week or part thereof Percentage of certified 10% Value retained Limit of retention fund Period of final measurement and valuation Name of surety 10% of the contract sum. 12 months from certified practical completion of the works. To be provided by the contractor Amount of surety 10% of contracts sum 5. Bond All tenderers will submit the name of an approved surety who will be willing to be bound to the client in an amount equal to 10% of the contract amount. 6. Taxes and Duties The tender shall be inclusive of all taxes including import duty, VAT and Withholding taxes. 11

12 7. Trade Names Where trade names or manufacturer's catalogue numbers are mentioned in the specification, the reference in intended as a guide to the type of article or quality of material required. Alternate brands of equal and approved quality will be acceptable as approved by the Architect and the Services Engineer. 8. Time for Completion There is need to complete the works in the time stated in the main contracts document. The Borehole Contractor shall make all due preparation safeguard against factors such as labour, shifts fluctuation, weather patterns etc. that might slow his progress and no claims for extras will be considered on account of his failure to do so. 9. Warranty The Borehole Contractor must furnish the Services Engineer with general written warranty covering quality of workmanship, materials, and equipment and be compelled and held liable thereby for a five year period after practical completion of the contract, except for latent defects, which shall be warranted for ten years. The Borehole Contractor must make good at his own expense, such repairs and replacements as may be required as a consequence of negligent workmanship or defective material. The Borehole Contractor must also produce such warrants and guarantees as described aforesaid from all manufacturers and/or suppliers of materials or equipment incorporated in the project under this contract. 10. Samples The Borehole Contractor shall furnish at his own cost any samples materials or workmanship that may be called for by the Services Engineer for his approval, and any further samples in the case of rejection until such samples are approved by the Services Engineer, and the Services Engineer may reject any materials or workmanship not in his opinion up to the approved samples. 11. Protection The Borehole Contractor shall adequately cover up and protect his own work to prevent injury and also to cover up and protect from damage all parts of the building or premises where work is being performed by him under the contract. 12. Handing over The Borehole Contractor s work shall be considered complete and the defects liability period shall commence only when the contract works and supporting services have been tested, commissioned and operated to the satisfaction of the Services Engineer. 13. Defects After Completion Defects Liability Period will be 12 months from the date of completion of the contract as certified by the Services Engineer. 12

13 14. Stamp Charges The tenderer shall allow for the payment of all stamp charges in connection with the surety Bond and contract Agreement. 15. Payments Payment will be made through certificates to the Borehole Contractor. All payment will not become due until materials are delivered to the site. 16. Damages for Delay Liquidated and Ascertained damages as stated in the contract Agreement will be claimed against the Borehole Contractor for any unauthorized delay in completion. The Borehole Contractor will be held liable for the whole or a portion of these damages should he cause delay in completion. 17. Clear Away on Completion The Borehole Contractor shall, upon completion of the works, at his own expense remove and clear away all plant, equipment, rubbish and unused materials, and shall leave the whole of the works in a clean and tidy state, to the satisfaction of the Services Engineer. 18. Site conditions The Borehole Contractor shall be deemed to have visited the site to ascertain all conditions affecting this contract. It is therefore necessary for the tenderer to ascertain for him/herself before filling in the Bill of Qualities. 13

14 PARTICULAR SPECIFICATIONS FOR BOREHOLE DRILLING AND EQUIPPING 14

15 PARTICULAR SPECIFICATIONS FOR BOREHOLE DRILLING AND EQUIPPING 1. Purpose The borehole to be drilled, constructed, test pumped and equipped with a submersible pump under this contract will be to provide water intended for office use. The maximum ground water abstraction permitted from the borehole shall be 10m 3 /day with the maximum abstraction period not exceeding 10 hours per day. The execution of the works shall be in full compliance with relevant provisions of the Water Act. The proposed drilling site will be ON PLOT LR. NO. 1/184 ALONG LENANA ROAD, NAIROBI. The Borehole Contractor is deemed to have visited the site, and if unable to locate it or its details apply to the Management of TDB for direction. No claims will be allowed for the traveling or other expenses, which may be incurred by the Borehole Contractor s works. 2. Scope of the Work The works included in the contract consist of two stages:- STAGE 1: Stage one comprises of: A. Hydrological Study and Survey to confirm opportunity of borehole Borehole contractor will be required to conduct a hydrological site survey using an established hydrologist to establish the best point to drill a borehole within the plot. A detailed report is to be given to the Services Engineer. The report should clearly indicate if it is viable to drill a borehole. B. Formal Submittal to governing agencies Borehole Contractor will have to make applications and acquire permits for drilling a bore hole from relevant authorities. This include WRMA and NEMA licenses and all other necessary documents as per the local authority requirements at the time of application. This will necessitate the activity of the next event. NOTE: - Stage 2 (Borehole drilling) shall take place if items A and B in stage 1 are successful. STAGE 2: Stage 2 consist of the following: (i) The drilling of one borehole of sufficient diameter to provide for a finished cased and screened borehole of 200mm diameter to the provisional depth of about 350metres. (ii) The provision and installation of plain high density synthetic, slotted synthetic casings, and gravel pack, borehole cap, together with cementation works necessary. (iii) The collection of formation samples at 2 meter interval of drilling progress to the bottom and also water sample at every aquifer struck and at the beginning and at the end of test pumping operation for both chemical and biological analysis. 15

16 NOTE: - These depths and any other works can be varied by the Services Engineer depending on the actual conditions encountered in the process of executing of the works. (iv) The supply and installation of 1No. Submersible borehole pump, complete with the necessary controls. (v) Connection of the water from the borehole to the water storage tank. 3. Local Conditions The borehole will be drilled, constructed and test pump in both unconsolidated and consolidated formation and the Borehole Contractor must be prepared to carry out the required work through any type of formation in the project area. 4. Borehole Data (a) (b) (c) (d) (e) (f) (g) 5. Casings (a) (b) 6. Screens Total depth 350m of 200mm diameter from surface (Provisional) Casings to be 152mm diameter and screened depth to be determined after borehole construction. Static water level not known Dynamic water level not known Recommended pumping rate 8-12m³/hr (for the purpose of quotation but to be confirmed after testing) (Pump) setting level 20m (for the purpose of quotation but to be confirmed after testing) Total dynamic head to be determined on site Casings to be used as part of the permanent borehole structure shall be stainless steel suitable for borehole and having nominal diameter of 200mm. If any casing other than that to be left permanently in the borehole is required temporarily for execution of work, it shall be supplied by the Borehole Contractor free of charge. The screens to be furnished and installed shall be of the pipe size variety having a minimum nominal diameter of 152mm and can be fabricated in three meter lengths. The screens shall be of continuous slot type and constructed entirely of stainless steel suitable for borehole installation. The screen shall have slot size opening of 1.4mm. 7. Grouting Grouting shall be done by either cement or bentonite to seal off unwanted upper aquifers under direction of the Services Engineer. 8. Construction Method The borehole to be constructed shall be drilled by cable-tool percussion method or the combination air/ hydraulic rotary method. The method of drilling shall be left to the discretion of the Borehole Contractor. After drilling to the final depth the Borehole Contractor shall proceed to insert permanent casings and screens as directed by the Services Engineer. 16

17 9. Gravel Pack If filter gravel will be necessary, it will consist of durable, naturally rounded quarzitic particles properly washed and cleaned prior to insertion in the borehole. The gravel shall be introduced in the annular space between the wall of the borehole and the 200mm casing from the bottom to about 2 meters below surface. The final casing and screens must be centralized before gravel back and the Borehole Contractor must supply suitable equipment for lowering of gravel pack. 10. Cementation The space above the gravel pack shall be grouted with a mix of one part of cement to two parts of sand and two parts of ballast, in order of 1:2:2 concrete may be used near the surface to form an annular plug around the casing of dimensions 1.0 x 1.0 x 1.0 meters. There shall be 2000mm diameter concrete plinth on top of the borehole and shall be constructed as shall be directed by the Services Engineer and the Structural Engineer. Any other cementation works to be done as directed by the Services Engineer. 11. Development The Borehole Contractor shall furnish all necessary pumps, compressor, plungers, bailing or other needed equipment and shall develop the borehole by such approved methods as shall be necessary to give the maximum yield of water per increment of drawdown and extract from the formation of maximum practical quality of such sands as may, during the life of the borehole, be drawn through the screens when the borehole is operating under maximum conditions of draw down. 12. Test Pumping After the borehole has been completed, constructed and developed, the Borehole Contractor shall make necessary arrangements for conducting a 24 hour continuous test pumping up to a maximum of 30hr and 12 hour recovery test under the supervision of the Services Engineer. Where the Services Engineer or his representative cannot be present on such pumping test, the Borehole Contractor may continue without him keeping accurate records of the test in terms of discharge and drawn down but must seek permission from the Services Engineer. Should the Borehole Contractor fail to keep such records, the Services Engineer shall order the test to be repeated at no extra cost. 13. Sample Formation The Borehole Contractor shall keep an accurate record of the top and bottom of each stratum penetrated and shall save and deliver to the Services Engineer a sample of materials taken from each 1m of formation, or at every change of formation and at such other intervals as may be ordered by the Services Engineer. Those samples shall be placed in approved Borehole Contractor supplied containers with labels which indicate the depth at which the sample was obtained. 17

18 14. Water Samples Water samples shall be collected at every water struck while drilling and also shall be collected at the start of every test and toward the end of the test in a three litre sterilized plastic container for both chemical and bacteriological analysis and submitted in a competent laboratory for analysis. 15. Reports The Borehole Contractor shall submit to the Services Engineer daily progress reports showing:- (i) The depth each day indicating drilling in meters per hour with comments on degree of hardness of materials being penetrated. (ii) Depth at which each water bearing zone is encountered and the rise and fall of water level in different formations. (iii) The full details of work carried out in respect of operations which are paid for at hourly rate. (iv) The full details of the number of hours worked each day. 16. Cessation of Work The Services Engineer reserves the rights to stop drilling operations if in his opinion:- (a) (b) (c) A sufficient supply of water has been obtained. The work is not being carried out in a satisfactory manner or Further drilling is unlikely to be advantageous or for any other reason In this event, payment shall be made only for the amount of work done up to the date of stoppage. 17. Supply and Installation of Pump The Borehole Contractor shall supply and install:- (a) One electric submersible pump which will conform to the specification stated, for operation on 415 volt, 3-phase. (b) All necessary electrical equipment for the pump such as control panel with starter, ammeter, single phasing cut-out, low voltage cut-out and all necessary cables for connection. (c) Suitable diameter Galvanized Steel pipe class C to carry water to the surface/ to water storage tank (d) Low level cut-out switch (e) Airline 20mm galvanized steel pipe for water level measurements (f) Pressure gauge (g) The gate valves, non-return valves before the master meter (h) Master meter for measuring the water from the borehole. In addition the Borehole Contractor shall carry out 24 hours test run at the completion of the works. This test has to be certified by the Project Manager. Note on Pump Installation The Borehole Contractor shall install the borehole pump complete with all necessary accessories. The Borehole Contractor shall make the necessary electrical connections and include in his prices all cable, starter-panel, switches etc. required to put the pump in operation while tendering for this part of 18

19 the document and return it with full description literature and performance curves for the proposed equipment together with the tender for drilling works. The installation of the submersible pump into the borehole shall be done immediately the borehole drilling is completed, test pumped and water analyzed for suitability for human consumption. The final production pump to be installed in the newly drilled borehole shall be determined and installed as per the actual conditions encountered on completion of the drilling works. Hence the specifications given under the section of borehole data are only for the purpose of quotation. After establishing the actual conditions of the drilled borehole, only the Services Engineer s approved submersible pump shall be installed. 18. Electrical works It shall be the responsibility of the Borehole Contractor to provide all electrical wiring between all items of his Contract to ensure the correct function of his equipment. The Borehole Contractor s electrical works shall start from the nearest electrical isolator which is available within the site. 19

20 BILLS OF QUANTITIES 20

21 NOTES ON BILLS OF QUANTITIES 1 The Bills of Quantities form part of the contract documents and are to be read in conjunction with the contract drawings and general specifications of materials and works. 1. The prices quoted shall be deemed to include for all obligations under the contract including but not limited to supply of materials, labour, delivery to site, and storage on site, installation, testing, commissioning and all taxes (including 16% VAT). 2. All prices omitted from any item, section or part of the Bills of Quantities shall be deemed to have been included to another item, section or part. 3. The brief description of the items given in the Bills of Quantities are for the purpose of establishing a standard to which the Borehole Contractor shall adhere to. Otherwise alternative brands of equal and approved quality will be accepted. Should the Borehole Contractor install any material not specified here-in before receiving approval from the Services Engineer, the Borehole Contractor shall remove the material in question and, at his own cost, install the proper material. 5. The grand total of prices in the price summary page must be carried forward to the Form of Tender. 21

22 PROPOSED TRADE AND DEVELOPMENT BANK ON PLOT LR. NO. 1/184 LENANA ROAD, NAIROBI BILL OF QUANTITY FOR BORE HOLE DRILLING & EQUIPPING RATES TO INCLUDE VAT ITEM DESCRIPTION UNIT QTY RATE TOTAL NO. KSHS. KSHS. PRELIMINARIES AND GENERAL CONDITIONS A Provide bond as stated in the published conditions of contract. Sum B Provide insurance as required in the contract conditions. Sum C Preparation of working drawings and As installed/ as built record drawings. Sum D Printing of paper copies of item C above. Sum TOTAL CARRIED FORWARD TO SUMMARY PAGE 22

23 ITEM DESCRIPTION UNIT QTY RATE TOTAL NO. KSHS. KSHS. A Allow for conducting an Hydrological site survey to establish the best point to drill a bore hole within the plot by a registered Hydrologist and produce report a detailed report to the Services Engineer. The result of this will either justify or negate the next event. Item 1 B C Allow for the application and acquisition of permit for drilling a bore hole from relevant authorities. This will necessitate the activity of the next event. Item 1 Allow for the application and acquisition of NEMA permit for drilling a bore hole. Item 1 The following borehole drilling shall take place if item A, B, and C are successfully completed and the relevant documents released to the Services Engineer for onward transmission to the client. D Mobilization/ demobilization of drilling unit, equipment Sum 1 materials, personnel and all other required supplies. E Erecting/ dismantling of drilling unit. Sum 1 F Drilling 200mm diameter borehole from 0-100m below Lm 100 surface. G Drilling from m Lm 100 H Drilling from m Lm 100 I Drilling from m Lm 50 J Supply and installation of 200mm diameter Lm 300 Stainless steel casing suitable for borehole. K Supply and installation of 200mm diameter Lm 50 slotted stainless steel casing suitable for borehole. L Supply and installation of filler gravel pack Ton 8 M Test pumping to ascertain borehole yield for at least 24 Item 1 hours including installation and withdrawal of test pumping unit, recovery measurements and production of detailed Test Pump results. N Construction of concrete plinth around wellhead. Item 1 0 Borehole capping Item 1 TOTAL CARRIED TO SUMMARY PAGE 23

24 ITEM DESCRIPTION UNIT QTY RATE TOTAL NO. KSHS. KSHS. A Allow for all costs involved in providing Item 1 water for all requirements of the contract drilling field etc. B Allow for the production of bacteriological Item 1 Water chemical analyses and borehole completion report. C Geological logging Item 1 D Supply and install centrifugal borehole pump, continuously rated and capable of pumping 10m³/hr. of water against a total head of 350m. The entire pump-set body, impellers, shaft etc. shall be made of heavy-duty stainless steel material. The pump shall have inbuilt non-return valve, tail strainer, and cable guard. The pump shall be as GRUNDFOS 12D03927 SP 17-27N three phase 415V. No. 1 TOTAL CARRIED TO SUMMARY PAGE 24

25 ITEM DESCRIPTION UNIT QTY RATE TOTAL NO. KSHS. KSHS. A Supply and install a control panel to be mounted off the wall. The control panel shall be water tight with No. 1 corrosion resistant from hinged lockable door metal enclosure and have Merlin Gerin switch-gear and Telemechanique control gear. The control panel *1No. 25A 3-pole isolator complete with extended rotary handle as main incomer. *0 500V voltmeter complete with fuse protection and selector switch *under/ over voltage phase failure protection relay complete fuse protection. * A ammeter for the 5.5kw bore hole pump *1No. 16 A 3-pole MCB for the 5.5kw pump *1No. 1A 3-POL3 MCB type for the 45watt motor complete with auxiliary relay for 5.5kw pump *1No. 45W 1 - phase 240V AC DOL starter complete with thermal overload relay for doser pump *dry run alarm for the 45watt chemical doser pump, incorporating a float switch in the doser level regulator, to trigger the alarm when chemical level is low. *low level indicator lamp for chlorine dosser B 6mm² 4-core PVC round hardened PVC Lm 350 submersible electric cable. Waterproof. C 2.5mm² 4-core PVC round hardened PVC Lm 350 electrode cables waterproof. TOTAL CARRIED TO SUMMARY PAGE 25

26 ITEM DESCRIPTION UNIT QTY RATE TOTAL NO. KSHS. KSHS. A 2.5mm² 4-core PVC/SWA/PVC cable from Lm 520 control panel to water tanks. B 25mm diameter heavy gauge PVC ducts Lm 157 C Excavate trench of dimensions 300mm x Lm mm to invert to lay cables. The laid cable to be covered with 50mm thick layer of fine soil, covered with tiles as Hatari then back fill and ram and dispose of Excess. D Electrode pair No. 1 E Level regulator complete with mounting box No. 2 F Supply and install galvanized lockable masonry No. 1 borehole protection cover size 750 x 750 x 400mm Complete with 2No. heavy-duty stainless steel Padlocks. G Supply and install PVC Class B 40mm Lm 430 diameter water pipe (observation pipe) H Supply and install high quality pressure No. 1 gauge as Kent or equivalent range 0-7kgf/cm² complete with accessories for mounting on GI pipe. I Supply and install single orifice air valve, No. 1 complete with pipe mounting accessories. TOTAL CARRIED TO SUMMARY PAGE 26

27 ITEM DESCRIPTION UNIT QTY RATE TOTAL NO. KSHS. KSHS. A Supply and install 50mm diameter rising main Lm 506 galvanized mild steel pipes class 'C' complying to BS 1387 with screwed and socketed joints to BS 143 B 50mm diameter gate valve as Pegler No. 2 C 50mm diameter non-return valve as Pegler No. 2 or equal and approved D 50mm diameter GI bend No. 5 E 50mm diameter water meter as "Kent" or No. 1 equal and approved F Allow for installation of temporary borehole pump and No. 1 accessories G Any other items necessary to complete Item 1 the works (please specify) TOTAL CARRIED TO SUMMARY PAGE 27

28 SUMMARY PAGE ITEM DESCRIPTION KSHS. NO. TOTAL BROUGHT FORWARD FROM: 1 PAGE 18 2 PAGE 19 3 PAGE 20 4 PAGE 21 5 PAGE 22 6 PAGE 23 7 SUB - TOTAL 01 8 ADD 5% CONTINGENCY SUM 9 TOTAL CARRIED TO FORM OF TENDER Total cost in words (Kenya shillings)... Name of Tenderer... Address... Terms of Payment Deliver Period.... Warranty.. Official Stamp... P.I.N No...V.A.T Reg. No... Witness to Tenderer... Signature... Date... 28

29 LETTER OF ACCEPTANCE [Letterhead paper of the Employer] To: [name of the Borehole Contractor ] Dear Sir, [address of the Borehole Contractor ] [date] This is to notify you that your Tender dated for the execution of [name of the Contract and identification number, as given in the Tender documents] for the Contract Price of Kshs. [amount in figures][kenya Shillings (amount in words) ] in accordance with the Instructions to Tenderers is hereby accepted. You are hereby instructed to proceed with the execution of the said Works in accordance with the Contract documents. Authorized Signature Name and Title of Signatory Attachment: Agreement 29

30 FORM OF AGREEMENT THIS AGREEMENT, made the day of 20 between of [or whose registered office is situated at]. (Hereinafter called the Employer ) of the one part AND of [or whose registered office is situated at] (hereinafter called the Borehole Contractor ) of the other part. WHEREAS THE Employer is desirous that the Borehole Contractor executes (name and identification number of Contract ) (hereinafter called the Works ) located at _[Place/location of the Works]and the Employer has accepted the tender submitted by the Borehole Contractor for the execution and completion of such Works and the remedying of any defects therein for the Contract Price of Kshs [Amount in figures],kenya Shillings [Amount in words]. NOW THIS AGREEMENT WITNESSED as follows: 1. In this Agreement, words and expressions shall have the same meanings as are respectively assigned to them in the Conditions of Contract hereinafter referred to. 2. The following documents shall be deemed to form and shall be read and construed as part of this Agreement i.e. (i) (ii) (iii) (iv) (v) Letter of Acceptance Form of Tender Conditions of Contract Specifications Priced Bills of Quantities (vi) NEMA License Conditions 3. In consideration of the payments to be made by the Employer to the Borehole Contractor as hereinafter mentioned, the Borehole Contractor hereby covenants with the Employer to execute and complete the Works and remedy any defects therein in conformity in all respects with the provisions of the Contract. 30

31 4. The Employer hereby covenants to pay the Borehole Contractor in consideration of the execution and completion of the Works and the remedying of defects therein, the Contract Price or such other sum as may become payable under the provisions of the Contract at the times and in the manner prescribed by the Contract. IN WITNESS whereof the parties thereto have caused this Agreement to be executed the day and year first before written. The common Seal of Was hereunto affixed in the presence of Signed Sealed, and Delivered by the said Binding Signature of Employer Binding Signature of Borehole Contractor In the presence of (i) Name Address Signature [ii] Name Address Signature 31

32 PERFORMANCE BANK GUARANTEE (UNCONDITIONAL) To: (Date) Dear Sir, WHEREAS (hereinafter called the Borehole Contractor ) has undertaken, in pursuance of Contract No. dated to execute (hereinafter called the Works ); AND WHEREAS it has been stipulated by you in the said Contract that the Borehole Contractor shall furnish you with a Bank Guarantee by a recognized bank for the sum specified therein as security for compliance with his obligations in accordance with the Contract; AND WHEREAS we have agreed to give the Borehole Contractor such a Bank Guarantee: NOW THEREFORE we hereby affirm that we are the Guarantor and responsible to you, on behalf of the Borehole Contractor, up to a total of (10% of contract sum) Kshs. (amount of Guarantee in figures) Kenya Shillings (amount of Guarantee in words), and we undertake to pay you, upon your first written demand and without cavil or argument, any sum or sums within the limits of Kenya Shillings (amount of Guarantee in words) as aforesaid without your needing to prove or to show grounds or reasons for your demand for the sum specified therein. We hereby waive the necessity of your demanding the said debt from the Borehole Contractor before presenting us with the demand. We further agree that no change, addition or other modification of the terms of the Contract or of the Works to be performed thereunder or of any of the Contract documents which may be made between you and the Borehole Contractor shall in any way release us from any liability under this Guarantee, and we hereby waive notice of any change, addition, or modification. This guarantee shall be valid until the date of issue of the Certificate of Completion. SIGNATURE AND SEAL OF THE GUARANTOR Name of Bank Address Date 32