IMPLEMENTATION OF RAINWATER HARVESTING SYSTEMS UNDER KIRIWATSAN PHASE I: DESIGN, AND SPECIFICATIONGOVERNMENT OF KIRIBATI AND UNICEF KIRIBATIDECEMBER 15, 2012 updated in May 25, 2014
Title :This technical design and specification, prepared jointly by MPWU Government of Kiribati and UNICEF for implementation of rain water harvesting in 16 outer islands under Kiriwatsan project phase I . The project is funded by European Union .
Government of Kiribati
UNICEF European Union
1
---------------------------------------------------------------------------------------------------------------------
KIRIWATSAN I INSTALLATION OF RAINWATER HARVESTING SYSTEMSSummary description
1. Background Rainwater harvesting is one of the key components of the EU-funded, Water and Sanitation project in the Outer Islands of the Republic of Kiribati , under Phase 1 (KIRIWATSAN I). Its objective is to increase volume of rainwater safely harvested, stored and used in 70 selected villages in 16 outer islands. Under the leadership of the Ministry of Public Works and Utilities (MPWU) and with technical support from UNICEF, the component will be implemented based on the results of the hydro-geological/water resources assessment and community mobilization and capacity building components. Data collected under the water resources assessment component will guide the potential sites for the installation of facilities. The preference will be given to the areas where the GW water is not available or inadequate. The community action plans has been developed during the community mobilization which will guide where and how to install them to keep the RWHS sustainable and properly used by the communities.
2. Elements of Rainwater Harvesting Systems Rainwater harvesting systems, includes the following elements1:water tank (including mosquito screen), water tank basement (reinforced concrete), down pipe with first flush arrangement, gutter, transmission pipes, stand post with taps, pipes and valves, water collection chamber and other accessories. In villages where there are no buildings with an existing appropriate roof cover for rainwater harvesting (corrugated iron sheets), replacement of roofing material might be considered.
3. Procurement, delivery and InstallationA contractor will be hired for the procurement, with the support from UNICEF Suva to delivery and installation of rainwater harvesting systems (package) under the guidance of MPWU /UNICEF and the respective islands councils in 17 outer islands . MPWU has expressed its preference for hiring of local contractors to build the local capacity and has sent a letter to UNICEF Suva dated December 15, 2012.
Scope of work:I. Procurement of Rainwater harvesting system materials
Procure materials, those are ; Water tanks, gutters, transmission and downpipes, first flush , pipes, taps, valves, fittings, cement, reinforcement bars, sand and gravel, as per the provided specification for the installation of 250 Nos rainwater harvesting systems in the 50-55 target villages of the 12/14 Gilbert Islands.
Make all necessary arrangements for material testing in South Tarawa prior to distribution, based on standards and procedures agreed with MPWU and UNICEF. Materials such as gutters, pipes, valves, taps, cement and others will be quality
1
2
controlled as per the specification by MPWU/UNICEF Kiribati. Tanks will be visually and physically tested using prepared check lists, with UNICEF-supported monitoring by MPWU.
Procure and supply of miscellaneous materials if required to complete construction, under prior approval of UNICEF.
II. Distribution of rainwater harvesting system materials Once inspection is completed the contractor will make all arrangement in
coordination with respective outer islands as per the distribution attached in annex 01 for commence installation. It is important to initiate all the activities as quick as possible to prevent wasting of time which will delay the overall project implementation. MPWU/UNICEF Kiribati will provide necessary support and liaison with outer islands and the contractor.
Deliver materials from the source to all installation sites in the selected 50-55 villages of the 12/14 Gilbert group as per the specification and the distribution plan / schedule.
During distribution of the materials proper documentation to be completed as advised by MPWU and UNICEF for security and loss of materials and accessories. It will be the sole responsibility of the contractor for any loss of materials at any point of time on the process.
III. Installation of rainwater harvesting systems. Sites handover to the contractor will be conducted in coordination with Village
Welfare Groups (VWG), MPWU Island Water Technician (WT) prior to the commencement of installation work. UNICEF and MPWU will facilitate the process.
Installation of rainwater harvesting facilities in selected public and, exceptionally, private building (maneabas, churches and others), supporting strong engagement and collaboration of village WASH caretakers, and in accordance with community action plans in each of the 50-55 target villages as per the basic drawings.
Arrange and provide labour, machinery and all required equipment for construction and installation and commissioning works at site. Hiring of local labour, identified by the community, including WASH caretaker’s technicians, will need to be involved and promoted.
In villages where there is no building or maneaba with appropriate roof cover for rainwater harvesting, replacement of the existing local roof cover of buildings identified under the water resources assessment and community mobilization components with a corrosive resistant and appropriate material for rain water harvesting as per specifications provided.
If the catchment areas are big two/four/five each 5000/6000 Litres Rain water tanks will be fixed to provide community drinking water. However if the catchment areas are not sufficient single tank could be installed
IV) Testing of water quality: One water quality test Kits will be provided to the water technicians by the project with training so that they will be able to carry out water quality testing as per the defined country standard parameter decided by MPWU. The bacteriological and other specified water quality will be tested other than the chemical test. Testing will be carried out by water technician and the contractor has to ensure
3
all precaution arrangements are made so that the water quality of the water in tanks remains safe. This will not be the part of the contract but the project will facilitate having the quality check of the water for drinking by the communities.
V) Quality control and monitoring Upon received the work order the contractor will produce the tanks and other
accessories and will make ready for quality inspection. A team assigned by the MPWU/UNICEF will conduct a quality check for all the materials for physical, design dimension and specification, if necessary, the chemical test could be conducted. After successful quality inspection the team will mark all the items as “quality pass” and will provide written approval for delivery to the sites. However the total liabilities will remain with the contractor until hand over the systems after the warranty period for any damage and pilferage. The final quality will be checked after installation and tanks are in use. Any damage and leakage found at the tanks or other materials the contractor should replace the items immediately.
Arrange, supervise and monitor works as per the agreed design and specification and monitoring schedule including roles of foreman, carpenters and plumbers among others, will need to be agreed with MPWU and UNICEF.
Maintain documentation of daily work progress and liaise and share weekly progress summary notes with the Water Technician (technical monitoring) and Island Development Committees (progress monitoring).
Provide a “Certificate of Completion” of the structures duly verified by /MPWU for soundness and integrity of all elements of the installed facility and other accessories.
Formal documented “Hand-Over” of the facilities in functional condition to the community, in coordination with VWG, as required.
Remedial works during the warranty period (6 months after hand-over) at contractor’s cost and risk.
Attend progress/site meetings with PMU staff, Ministry of Public Works and Utilities, Island Council, Water Technician and Island Development Committee members and prepare and circulate copies of minutes thereof.
Prepare certificate for payment, showing clearly the breakdown of accomplished works, quantity of utilized materials along with necessary invoices and sketches.
Bill will be submitted to UNICEF Kiribati in lot of 10 or more after completion of all related work and submission of the certificate
VI) Reporting Draft and share with MPWU/UNICEF an inception report, quarterly progress reports,
commissioning report, and make stage-wise and final accounting once the work is completed in the format agreed upon with UNICEF.
Prepare a final report and present results to MPWU and UNICEF as well as the project steering committee.
4. Specification and Bills of QuantitiesDraft Specification and Bills of Quantities are prepared for three types of systems: i) Maneabas with proper roof cover for rainwater harvesting ii) Maneabas with thatched roof cover iii) Churches.
4
All buildings for rainwater harvesting system installation are existing structures, each with varying dimensions. As all these existing structures have no drawings, preparation of BoQ are tentative. A separate sheet /delivery note /invoice could be used and signed by the caretaker of each sides which has to be counter signed by the island council.. The detail measurement will be undertaken by MPWU/PMU for payment of the actual work done at the field , and quantities of materials for system installation. The detail specification and BoQs are in Annex A attached.
5. VariationIn the draft BoQ, quantities of materials consider installation of one RWH system. If better bigger roofing /building are found will be connected for two or more tanks. Possible alternatives for few smaller systems on different buildings across long villages may be explored if context/existing building quality so allows, but as a standard option would be too costly under the current budget. Preference for either maneaba or church building is to be determined by the community in community action plans. Attached BoQs are prepared on the community decision making on preferred buildings. Therefore dimensions are an estimate only and the BoQ and amount of work may present variation.
Variation and other such Works and items outside of the lump sum scope will only be commenced and paid with prior written approval of UNICEF. For Works related to Variations for new roofing or repairing of roofing catchment areas. The contractor needs to quote per square meter and billing will be done on actual work done. Contractor will keep/ maintain proper and accurate records that will be taken into a Measurement Book maintained by the Contractor in which the actual and accurate measurements of variation items upon certification and verification by respective personnel from MPWU/PMU .
6. Supervision and MonitoringMonitoring and supervision of the installations will be carried out in collaboration with MPWU’s Water Engineering Unit (WEU) with technical and financial support by UNICEF (overall supervision), Outer Island Water Technicians (technical supervision) and IDC’s (progress supervision).Island councils will oversee the rainwater harvesting systems installation with the technical and timely progress reports from the Water Technicians and IDCs based on contractor’s weekly progress reports.
7. Training and Capacity Building and Distribution of Tools Spare Parts.In addition to the scope of work under this contract, as part of the community mobilization and capacity building component of KIRIWATSAN I, two WASH caretakers (WASH artisans) from each village will be trained and provided with relevant IEC materials on operation and maintenance of the rainwater harvesting systems and will be equipped with necessary tools and spare parts.In addition to that one whole day awareness sessions will be conducted for 50 participants one from each household on importance of Rainwater use and sustainability. This training and distribution of spare parts could be handled under a dedicated specialists carrying out the work. This helps the contractors to focus on the installation of the systems/scope of work presented above.
5
8. Sustainability :
The project will emphasis for sustainability of the systems so that are appropriately handled by the users, which implies that they are efficiently maintained, effectively used and have a lasting positive impact. Sustainability depends on Quality of the materials and supplies, quality of installation and workmanship, community involvement, maintenance plan and generation of small funding, Community responsibilities including the choice of technology, local traditions, organizations, social, economic, natural, and political environment as it does on the real distribution of decision-making power between the project partners. During the project phase community will be developed through social mobilization/ during installation so that the community understand the importance of the RWHS systems since other alternative technologies are difficult. Therefore, the contractor will not just install the systems, will need to create a social relationship so that spare parts supply chain and understanding is developed between community and supplier for future O&M and maintenance. Community will be encourages to generate funding for repair and maintenances. During the training the contractor will discuss with community and will agreed upon the modality to generate the funding and taking over full responsibility in relation for sustainability .
Time Frame for completion of the work : The time frame will be 180 days from the date of signing the work order by the contractor .
Specification for Installation of Rain Water Harvesting systems in outer islands in Kiribati under Kiriwatsan Phase I:
Rainwater harvesting requires a metal roof, gutters and downpipes to collect the water, Water Tank, Base platform, Water Collection chamber stand post and water tap. The specifications of all the above components /materials areas follows. Apart from the specification for implementation of the RWH project need to follow the RAINWATER HARVESTING GUIDELINES: DESIGN, CONSTRUCTION AND SPECIFICATION For GOVERNMENT OF KIRIBATI published dated July 2011. If there are any technical issues which are not clear and not covered in the specification and guidelines should be discussed to the MPWU/UNICEF before participation of the tender. It is estimated a total no 250 numbers 5000/6000 litres RWH tanks will be installed .. The Tanks to be made of food-grade Polyethylene (or other similar material), UV-stabilized, complete with mosquito-proofed water inlets and outlets (e.g., overflow) and molded lifting lugs capable of supporting the weight of an empty tank, as well as the completion of two demonstration tank installations (if necessary) Technical Specifications. Tanks will be supplied, installed and connected to the community buildings or households dwellings located in the outer islands of Kiribati based on the decision of the island councils . The Government of Kiribati and UNICEF jointly conducting an assessment on the total need at household/ community level at 17 outer islands. The total nos 250 numbers of 5000/6000 litres need to join for community /10000/12000/20000/24000/25000/30000 litres (Two/ four/five
6
5000/6000 capacity tanks can be connected based on the assessment and availability of bigger catchment and community size). In this documents there are several options kept for submission of rate like Tanks volume/size, Gutters, Basement, and Taps including a few other materials. The contractors are requested to quote set and individual items for additional use of materials based on the field situation. Based on the rate and the assessment of the villages final order will be made with exact type and quantity. Since certain situation of the field is not yet clear therefore the contractor need to be flexible to accommodate certain changes if arise at the field during installation with mutual discussion with MPWU and UNICEF with written communications. However this tender is for 250 numbers tanks and most of the materials calculated and estimated as single tanks with a provision that two or more tanks can be installed together for the community structures. When two or more tanks will be connected in one location only one tool box and spare parts set will be distributed. However if one singe tank is installed in one single household to share the drinking water, each tank one tool box and spare parts set will be delivered . Overflow pipe should be connected min 20 mm below the intake pipe of the Tank .
A) Provision/procurement of all materials
Water Tanks:
The water tanks should meet the following manufacturing standards Australian Standards [AS] or equivalent:
a) AS 2070:1999 (plastic material for food contact use);b) AS 4020:2005 (testing of products for use in contact with drinking water); andc) AS 4766:2006 (polyethylene storage tanks for water and chemicals).
Resistant to local conditions, in particular: temperature, ultra violet radiations, wind speed up to 200 km/hr, corrosive marine/coastal environment with a high salt content and a rural environment with high presence of dust, insects, etc.
The ability of the water tanks, all of the same design, to function in the indicated environmental and climatic conditions shall be proven by appropriate documentation of successful use for at least ten (10) years. A statement of warranties that proposed water tank has a life of 20 years.
Water tank bottoms must be wedged/ribbed so they can be sited on the concrete base of any kind, and when full (5000/6,000 litres) are able to withstand pressures that would otherwise lead to cracking or puncturing
1. Procurement of Rain Water Tanks : a) Volume 6000 Litres
Effective capacity: 6000 litresStraight edge polyethylene tanks w/lid moulded to tank body for rigidity;
7
Tank height (from base to top of lid/inlet): 1300 - 1600 mm;Outside tank diameter: 2300-2400 mm approx.;Minimum average tank wall thickness (including top and bottom):5- 8 mm;Inlet strainer: Mosquito/insect proof;Overflow outlet strainer: mosquito/insect proof;Plumbing outlet diameter: 25 mm (female threads); including joining arrangement by 50 mm PVC pipes and ball valves of two or more tanks together. If community agree for any single tank to a single house hold will also be installed. The local island council with support from MPWU and UNICEF will make the decision for installation of the tanks.Manufacturing material: Polyethylene – food grade (or similar);UV stabilized;Lifting lugs: Moulded – capable of supporting weight of empty tank; andColour: Preferably UP Forest Green, Fern Green or equivalent.
b) Volume 5000 LitresCylindrical shapeSize Height 2150-2250 mm , Diameter 1700-1800 mm.. Materials food grade Polyethylene . Resist Ultra-violet (UV) damage All other specification as stated above
2. Repairing of Rain water Catchment areas
Type of Roofing: Maneabas thatched roof and other types of roof where need to repaired to have better catchment , will need to be repaired. The rate need to be quoted per metre square which will be finally decided of the requirement and measuring sheet. During implementation after collection of field measurement final approval must be obtained from the MPWU/UNICEF Kiriwatsan team.
3. Gutters :Zinc/aluminum alloy coated steel gutter : Provides an extended lifetime as a guttering material, but expensive and are not locally available .Galvanized iron sheet gutter : This kind of gutter often used in many projects most of them imported however in local market in BatioTarawa , galvanized iron gutter found available . The quality
8
galvanized steel (usually available in Tarawa) .uPVC gutter : there are two types PVC gutters available , one is split from uPVC pipe and one is moulded . These two types gutters are commonly used in Kiribati . However due to deformation of PVC pipes under the open sunlight it is recommended to avoid using split PVC pipe as a substitute for ‘fit-for-purpose’ guttering. High fronted molded edge gutters are preferable as they reduce ‘splash losses’ from the water collection system. This kind of gutters is available in local market as well as with the Rain water tank manufacturers.
Preference will be given to Install SWG 20Zincalume® finished (Zinc/aluminum alloy coated) steel sheet gutter. Sheet has to be strengthened with Strengthening ribs Guttering should be provided with a noticeable slope of 1:400 towards downpipes to stop water from ponding in gutters. Where a number of downpipes are required on a single roof edge, install gutters with highpoints between downpipes. Gutters should be secured with Zincalume® finished steel straps at a spacing of 500mm. All Zincalume finished steel must comply with AS 1397
Zinc Aluminum Guttera) Zinc/aluminium Gutter length 3
m width 200 mm SWG 20 thick , height one side 100 mm and other side 60mm with 90 degree bend on top for water protection with all accessories. Three gutters per tank. If the gutters are imported from Standard manufacturer from NZ or Australia the contractor may offcer the standrd spcification with rate .
4) Wooden Fascia support wherever not available to be fixed : 200mmx 6 m long timber with proper mounted with roof .
4).Down pipe and including first flush arrangement. Downpipe with first flush arrangement included; 100mm dia, 3.5mm thickness and 3m long DN100 PVC-U DWV SN6 120822, AS/NZS 12600 LIC NO WMKA 21666 L1 05:30 with all accessories. Down pipe joint with gutter must be strong ad to be mounted with proper support. No down pipes should be kept hanging under any circumstances. The first flush arrangement includingthe strainer to be fixed with gate valve. The water intake point to the tank must be
9
covered with the strainer cover to prevent intrusion of foreign particles /dust mosquitoes inside the tank to keep the collected rain water safe inside the tanks.
Socket bend (Elbow) 100 mm .must be made from uPVC : T Joints 100 mm materials PVC 100 mm / PVC gate valve either PVC or GI .150 under ground PVC pressure pipes 3 m long if required
5. Solvent cement 200 gram per tank :
Brand V Tech VT 300 PVC solvent cement 200 gram container Cost 01/per 02 Tanks. This solvent cement is specified for uPVC down pipes, however if PVC gutters are used solvent cement should be used as specified by the gutter manufacturer. If Marley spouting is used special Marley silicon glue must be used for gutter
6. Water collection chamber and fixing of Stand post. 50mm thick concrete slab (400mm × 400mm) shall be placed at ground level below the tap at all supply points for each tank. However when two or more tanks are connected the community can decide on the no of water collection chamber. Where supply pits are necessary, due to tank elevation, these shall be 500mm deep (retained by block-work walls) and backfilled with 100mm clean gravel. A step shall be provided for ease of access if necessary. The two different water collection chambers are agreed. If tanks are connected community will decide how many chamber they want
a) One with above ground with 600x 600 mm inside with 200 mm parapet wall. The local water container or bucket should be easily put in during collection of water. There should be one drain pipe minimum 2 m long attached with soak pit.
b) The second one underground shown in picture with stand post 100 mm dia pipe cement filled inside around the need to be fixed 400 to 600 mm far from tank . The delivery pipe will be embedded underground and to be connected to the
10
connected to the stand post and tap . A 20 mm gate valve to be fixed to protect the rain water when the main tap is disordered.
7. Fixing of water tap: 15/20mm brass ball bibcock tap with no hose fitting for supply point. Mounted to a stand (cement filled PVC 100mm pipe). There are four different types are suggested during the submission of the tender the vendor need to offer each of the option. These options will be decided finally based on the materials availability and sustainability.
a) 15 mm Brass tap will need to be fixed with 15 mm x 200 mm long GI pipe with GI socket and elbow.
b) 20 mm Brass tap will need to be fixed with 20 mm x 200 mm long GI pipe with GI socket and elbow.
8. Filter /mosquito proofed arrangement: Simple nylon net plastic strainer could be used which will be fixed at intake pipe line. There are a few standard sample available in local market which could be used at the intake pipe. Diameter approx. 450 made from plastic bowl shape with plastic cover. Any other better arrangement if available could be offered.
9. Transportation of tanks and materials: If the tanks are produced out of Tarawa the vendor will be responsible for transportation to Tarawa or directly to the respective outer island in coordination with MPWU/UNICEF WASH team. The vendor will need to transport to the respective villages as per the distribution list. Before transportation all the preparation work at the villages need to be completed so that community is fully aware that all materials will be reached to them as per the confirmed date so that the materials could be received and stored at a safe place for installation . During transportation full liabilities of the materials would be with the vendor. Before transportation the vendor must ensure that all these materials are quality controlled by the representative of MPWU/UNICEF and obtained written clearance for transportation to the outer islands from Tarawa, Kiribati or any other places agreed by the MPWU Tarawa.
10. Installation Charges : Installation charges includes mobilization of equipment , skilled technicians, workmanship fitting fixing
11
all components and accessories, construction of Platform, water collection camber and other accessories engaging community local labour and water technicians . The vendor will carry out all the related activities on proper installation so that the Rain water systems are functional and used by the community. All workmanship should be done by skilled people properly so that systems remain robust for sustainability. During installation water technicians and respective local island personnel need to engaged for dissemination of technical skills so that after installation with the supplied tools and spare parts they are able to repair the RWH systems. The responsibility and cost of tank installation at all site destinations shall be borne by the Contractor. The Contractor shall work closely with MPWU/UNICEF Team to design the installation plan most preferred by MPWU, consistent with agreements already in-place between MPWU and outer island (local governments), using MPWU for tank installation supervision and oversight, and using local island labour exclusively to carry out installation works.
Tanks are to be installed on level sand or loam foundations. In some cases where tank height exceeds the roof height tanks will be buried to allow rainwater to be harvested from the roof. Where this situation occurs, the maximum depth of burial is not expected to exceed more than 0.05 metre. Site preparation where tanks are to be installed is the responsibility of each island council with cooperation from household and institution (e.g., local island government, primary school, etc.) receiving one or more tanks, and is not the responsibility of the Contracting Authority or the Contractor. The rainwater tanks will be located in a high ultraviolet radiation and a very corrosive marine/coastal environment with a high salt content. All openings shall incorporate netting, gauze or other methods to prevent the ingress and egress of mosquitoes and other insects.
11. Construction of Base Platform: The construction of basement is also the part of the contract. Basement should be constructed from cement blocks or reinforced concrete. The foundation base should be 100 mm underground and above ground height will be decided according to the height of the Maneaba height available at the villages . Height for the basement will be decided based on the height of the catchment roof and the soil condition. To withstand the load the ground soils need to be compacted and masonry work must be done with experienced mason and proper quality raw materials need to be used as per the standard specification. The following dimension of basement is given for the tank with conical shape for 5000 ltrs tanks. However if the tank is cylindrical and diameter is 2500 mm the diameter of the basement will be 2600 mmx2600 = 6.76 M2. The standard should be maintained 100 mm bigger from the bottom diameter of the tank. If it is five thousand ltrs cylindrical type basement dimension could be 2000 mm X 2000 mm.
12
12. Training : The training includes two i) Training to the caretakers including the water technicians, on building
local capacities at the outer islands so that they can extend the services for future O&M and sustainability. This training will be focused on technical issues how to maintain and fitting the frequently breakdown items like gutters, Water quality, first flush, cleaning filters etc. Cost …. 01 training /per 05 tanks
ii) Awareness of the community on preservation of rain water effective utilization, water quality, fund generation for O&M, Sustainability. During this training the trainer will brief on health massages and on importance of drinking safe water. Why rain water is important in context of Kiribati and outer islands rain water. Through the training process the community will be committed to take care the O&M. Cost …. 01 Training 05 tanks (50 participants )
13. Handing over of the RWH systems: The vendor after quality installation, physically verify and ensure all the materials and installation work and other related specified activities have been carried out in order and hand over to the caretakers or through obtaining signature in a hand over certificate (attached) and will prepare a summary sheet form the secretary of the island council.
14. Warranty period for after sales services: The after sales services will be for a period of Six months from the date of hand over the Rain water systems. Within the six months period the vendor need to visit twice (one in three month and final one after six months) . 10% amount of the total bill will be kept from the running bill.
13
15. Handing over Tool Box consisting the following tools per single tanks , when tow or more tanks will be connected only one toll box will be provided .
1. Combination plier 01 no2. Adjustable wrench 200 mm 02 no 3. Star head screw driver 200 mm 01 no4. Flat head screw driver 200 mm 01 no 5. Ball pein hammer 750 gm 01no 6. Hacksaw frame 300 mm 01 no 7. Hacksaw blade 300 mm 05 no 8. Thread tap 01 no 9. Tool box with space for above items
including lock and 3 keys. Best box available in Kiribati made of galvanized iron. The box need to be procured after official approval by the MPWU/UNICEF team in Kiribati. This tool box will be handed over at the end of the training along with the spare parts.
16. Spare Parts: The spare parts set should contain the following items for single tank however when two or more tanks will be connected only one spare parts set will be provided.
1 Gutter Aluminium 3 m long 01 no2. Gutter bracket 12 nos3. Corner gutter 02 nos4. Solvent tube / tin 200 gm 01 no5. Gate valve 19 mm (used size in tap) 01 no 6. vPVC Pipedia 19 mm 300 mm long 02 nos7. Brass tap 15/20 mm 02 nos (Depends on the size of the tap used)8 Plain socket GI 01 no9.15/20 mm GI pipe 200 mm threaded 01 no
17. Installation and major repairing equipment: The items listed for this activities will be used during installation, Water technicians and the respective personnel assigned by the island councils will be engaged by the contractor on payment for installation support personnel so that these people in the islands are trained during installation with technical skills. At the end of the installation each set of these equipment including the surplus materials need to hand over to the island council so that these trained people could use these items for future repairing throughout one island.
14
Annexure 01 (Distribution List) Proposed tentative KIRIWATSAN I list of target islands and villages for installation of Rainwater harvesting systems
This list presents the proposed geographical order of island for rainwater harvesting (RWH) components under the KIRIWATSAN I project. Based on the urgent need priority list will be provided for installation of the tanks upon signing of the contract . 250 Tanks will be installed within 51-55 villages in 12/14 Islands.
Within this schedule, the following observations are to guide RWH components: The order of villages within islands may vary, guided by agreements with villages and
island leaders for both components as well as community action plans for the RWH component.
As the RWH component follows from community action planning, and while conditions in islands and villages for successful action planning vary, some flexibility within groups of islands for the RWH is anticipated.
Tentative list of the KIRIWATSAN I Target villages for installation 250 Rain water systems..
No Island Village
1 Butaritari
Tanimaiaki,
Antekana,
Bikaati
2 Makin Kiebu
3 Maiana
Tematantongo,
Toora,
Aobike,
Tebikerai,
Temwangaua,
Tebiauea,
Bubutei,
Buota/Raweai
4 Aranuka Baurua
5 Nonouti
Abamakoro,
Tebuange( Benuaroa)
Matabou (Benuaroa section),
15
Taboiaki,
Matang
6 Tab North
Tenatorua,
Utiroa
Aiwa,
Takea (Tauma)
Taumwa,
Eita,
Terikiai,
Buota, ,Tanaeang
Kabuna,
7
Tab South
Taku
Tewai
Taungaeaka
Katabanga,
Nikutoru
Teobokia (Buariki)
8 Onotoa
Tabuarorae,Aiaki ,
Temao,Tanaeang,Tekaawa
9 Beru
Autukia,
Aoniman, ,
Teteirio
Nuka,
Tabiang,
Taubukinberu
10 Nikunau
Rungata,
Nikumanu,
Murubenua,
Tabutoa
11 Tamana Bakarawa
12 Arorae Roreti
16
