J.2 Technical Specifications J.2.1 43 Water Supply projects and Wastewater Facilities Amendment_1.pdf

wings/TANIA

MAJI NA USAFI WA MAZINGIRA (MUM)

USAID/TANZANIA MAJI NA USAFI WA

MAZINGIRA (MUM)

INFRASTRUCTURE CONSTRUCTION SPECIFICATION

PREFACE

Tanzania’s health, economy, and food security depend on sustainably managed water resources. However, water scarcity challenges are growing along with the impacts of climate change, while reliable access to safe drinking water and sanitation services is still beyond the reach of far too many people.

USAID Tanzania’s Maji na Usafi wa Mazingira Activity (MUM) works directly with national, regional and district stakeholders to improve Tanzanian systems for planning, financing, and implementing actions to expand access to WASH and WRM services, using four complementary implementation strategies, namely: Building ownership through continuous stakeholder engagement, strengthening organizational systems and services, applying market-based principles, and learning by doing. Specifically, in 10 districts in four regions of

Morogoro, Iringa, Njombe and Rukwa in the Rufiji, Lake Nyasa, and Lake Rukwa basins, the

Activity will:

● Increase access to sustainable water services managed by the Rural Water Supply and Sanitation Agency and urban water utilities (Sub-Objective 1)

● Increase access to finance for water, sanitation, and hygiene (Sub-Objective 2)

● Strengthen the market for sanitation and hygiene products and Services (Sub-Objective 3)

● Strengthen basin water boards and water user associations to enhance stewardship of water resources (Sub- Objective 4)

This publication was produced for review by the United States Agency for International

Development by Tetra Tech, through the Water and Development IDIQ (Contract No.

GS00Q14OADU138 / 72062121N00001 and Project No. REQ-621-21-000012 under the One

Acquisition Solution for Integrated Services (OASIS) contract, Maji na Usafi wa Mazingira-

MUM

Author: MUM Team

This report was prepared by:

Tetra Tech 159 Bank Street, Suite 300

Burlington, Vermont 05401 USA

Telephone: (802) 495-0282 E-Mail: international.development@tetratech.com

Tetra Tech Contacts:

Lukas Kwezi, Chief of Party Email: LUKAS.KWEZI@tetratech.com

Bradley Carr, Tetra Tech ARD Project Manager Email: brad.carr@tetratech.com

USAID Contacts:

Francis Mtitu

Project Management Specialist - Water, Sanitation and Hygiene

U.S. AGENCY FOR INTERNATIONAL DEVELOPMENT

686 Old Bagamoyo Road, Msasani, PO Box 9130

Dar es Salaam, Tanzania Email: fmtitu@usaid.gov mailto:brad.carr@tetratech.com mailto:fmtitu@usaid.gov

USAID/TANZANIA MAJI NA USAFI WA

MAZINGIRA (MUM)

INFRASTRUCTURE CONSTRUCTION SPECIFICATION

JUNE 2023

DISCLAIMER

This document is made possible by the support of the American People through the United States Agency for International Development (USAID). The contents of this report are the sole responsibility of Tetra Tech and do not necessarily reflect the views of USAID or the United States Government

SPECIFICATION

Section A Project Specific Information

Section B General Specifications

SECTION A: PROJECT SPECIFIC INFORMATION

1. Introduction The USAID/Tanzania Maji na Usafi wa Mazingira (MUM), Contract No. GS00Q14OADU138 /

72062121N00001 and Project No. REQ-621-21-000012 under the One Acquisition Solution for

Integrated Services (OASIS) indefinity delivery, indefinite quantity (IDIQ) contract is a five-year

(August 2021 – August 2026) Activity funded by the U.S. Agency for International Development

(USAID). The purpose of this activity is to expand and sustain the provision and governance of WASH services. Tetra Tech is the prime contractor for MUM and has engaged subcontractors FSG, WISE

Futures and Iris Group.

Specifically, the MUM activity is implemented in 10 selected districts of Morogoro, Iringa, Rukwa and Njombe Regions within the Rufiji River, Lake Nyasa, and Lake Rukwa basins, to:

● Sub-Objective 1: Increase access to sustainable water services managed by the Rural Water Supply and Sanitation Agency and urban water utilities.

● Sub-Objective 2: Increase access to finance for water, sanitation, and hygiene

● Sub-Objective 3: Strengthen the market for sanitation and hygiene products and Services.

● Sub-Objective 4: Strengthen basin water boards and water user associations to enhance stewardship of water resources.

In the previous USAID/WARIDI supported districts of Kilombero and Kilosa in Morogoro Region and Mufindi, Kilolo and Iringa in Iringa Region, MUM works with RUWASA, Local Government Authorities (in the respective districts), Community-Based Water Supply organizations (CBWSOs) and the private sector to maintain and advance:

● progress made towards water supply services.

● Access to basic sanitation status

● ODF status of communities achieved because of previous USAID interventions.

In the five new districts of Sumbawanga, Kalambo, and Nkasi in Rukwa Region and Ludewa and Makete in Njombe Region, MUM implements targeted activities where there is greater need for water infrastructure investments.

2. General Scope of Works

The sites at which works are to be carried out are mostly in rural areas with exception of

Namanyere (Nkasi), Iwawa (Makete) and Ludewa town. In township areas activities may overlap or interface with other Contracts or operational procedures of WSSAs and other

Operators. The Contractor is required to co-operate fully with the Engineer and other

Contractors to ensure minimum interference between contracts and with the public and in the operations of the water supply system. The Contractor shall be responsible for all investigations and calculations necessary to ensure that the Works shall be sound and fit for their purpose.

The scope of Work mainly involves the following. Specific scope for each project is as per project details.

● Mobilization and demobilization of equipment and construction materials.

● Supply and install gravity main and distribution pipes with associated fittings and valves as per BoQ

● Construction of water intakes as per specifications.

● Construction of concrete block/concrete water storage tanks of different sizes on ground or raised as per specifications.

● Construction of pump houses as per specifications

● Construction of fences around tanks and pump houses as per specifications

● Excavate, lay pipes and properly backfilling of trenches 100cm deep and 60cm wide for raising and distribution lines, including anchoring every pipe laid in valley, rivers and road crossing by reinforced or mass concrete as per project’ layouts. Qualified contractor employee is required to install fittings.

● Construction of Domestic water Points (DPs) including lockable valve chambers and plumbing works and drain/soak away pits filled it with stones as per specifications.

● Construction of cement blocks valve chambers with lockable mechanism as per specifications.

● Construction and installation of labeled and painted concrete pipeline markers along the transmission line at branches and bends as per specifications.

● Construction of Break Pressure Tanks as per specifications

● Supply and install Water pumps as per specifications.

● Supply, erection, testing and commissioning of Solar systems feeding the boreholes as per specifications.

● Supply new O&M tools for CBWSO as per BoQ

● Construction of CBWSO offices as per specifications

● Supply water treatment chemicals for start-up of project operations and install chlorination units on each storage tank as directed by MUM engineer.

● Testing for materials for quality monitoring, including Concrete cubes, concrete blocks, Pipes test, and soil geotechnical test for tank sites as directed by MUM engineer.

In all cases the contractor should ensure that projects activities have minimum environmental and social disruption, and there is effective mitigation of unavoidable social-environmental impacts according to MUM Environmental Mitigation and Monitoring Plan (EMMP). The EMMP will be available separately.

2.1 Supply and Installation of Pumps

▪ Supply, installation, testing and commissioning of electric or solar driven clear water submissible pumps set conforming to relevant ISO Standard and specifications.

▪ Pumps and motors shall have speed as per rated frequency and voltage. The supplied submersible pumps are expected to be of good quality and standards meeting the specified specifications to the satisfaction of the Engineer.

▪ The Pump rating will meet the specified yield in m3/h at a specified total head in m and operating speed in rpm.

▪ The scope under supply and installation of pumps shall include other accessories such as supply of pipes and fittings, non-return valves, Power supply to individual pump including fixing of transformers and all other allied Mechanical & Electrical works of External lighting, small power cabling fittings. Earthing chamber and distribution boards, lighting panels, Control panels, switchgear and capacitor Banks and lighting protection as per specified specifications.

2.2 Pump House, CBWSO office, Fencing, land scaping

▪ Construction of Pump House and CBWSO office of solid cement blocks made with cement sand mortar as per drawing & specifications complete in all respects and all Civil, Electrical and Mechanical works under this item along with water supply and sewerage as per drawings including the cost of materials, labour and all other works contingent there to.

▪ Fencing - Excavation for Foundation, provide all material and construction of RCC columns as per specifications. This shall include shuttering two legged stirrups on top of the wall with barbed wires. Fence wires shall be Galvanized with at least 2.5mm wires and plastic covers and MS Gate as per the drawings.

▪ Landscaping – Filling, levelling, compaction, aggregates on walkways and planting of carpet grass around the tank as per guidance from Engineer.

2.3 Pipes and fittings

▪ Supplying, Laying, Jointing, and testing of pipes on pumping/gravity mains, distributions from individual boreholes, including trench excavation works as per drawings and specifications and any other requirements for installation.

▪ This includes backfilling and proper compaction, disposal of surplus soil and wastes as per specification and approved alignment.

▪ Supply and Construction of Sluice Valves and Construction of Chambers as per specification and approved Drawing

▪ Supply and fitting of Air release valves where necessary. Providing and construction of air valve including chambers and fittings. This includes: valve chamber with cover as per the drawings including Excavation works in all types of soil excluding rocks, side supports, dewatering, replacement of soil if necessary and backfill with selected or excavated material according to soil report, removal of surplus soil and disposal as per drawings and specifications and required by the Engineer.

▪ Supply and fitting of Bulk Meters and construction of Chambers as per specification and approved Drawing. The installation shall ensure pipe section is always full and observe the requirement to attain lamina flow (clear distance on delivery side 3xD; and 5xD on suction side)

▪ Supply and fitting of Non-Return Valve with specials and construction of Chambers as per specification and approved Drawing. The installation shall ensure pipe section is always full and observe the requirement to attain lamina flow (clear distance on delivery side 3xD; and 5xD on suction side) including cost of dismantling joints & short, flanged pipe.

□ Crossing of pipes through river (pipe carrying bridge) / culverts/ ditches including casing of pipe and including material and labor complete in all respect.

□ Supplying and constructing reinforced concrete marker post to indicate the pipe alignment at significant points.

□ Rate shall include all materials and works as per drawing and specification.

3. Specifications and Drawings

● All drawings, technical specifications and other information are attached in the annexes, except publications incorporated into the technical provisions by reference. The contractor is required to fully review all instructions and specifications contained in the annexes. Failure to do so will be the contractor’s risk.

● A separate list of the Drawings can be provided on case-by-case basis.

● The cost of all works mentioned or described in this specification shall be covered by the rates entered in the Bill of Quantities, and where there are no specific items in the bills, they will be presumed to be included in other priced items.

● Specifications and Drawings for Construction Stipulations shall be in accordance with FAR 52.236-21

4. Planning the Works The Contractor’s planning of the works shall consider the following:

i. Minimizing interference with other ongoing operations within the project area.

ii. Procurement times.

iii. Seasonal effects, especially related to work sites with low elevation and/or activities affected by rains.

iv. Co-ordination with the engineer and RUWASA Engineers at Regional and District level

v. Number and size of teams for different disciplines, and sequencing of activities.

vi. Number and type of Contractor’s equipment and tools.

vii. The logistics / implications of re-using and/or re-locating pieces of existing equipment and complying with requirements of these specifications.

viii. Sequencing of activities to follow a logical plan. The Contractor shall not commence an activity and then leaves indefinitely in state of partial completion.

In particular, this applies to temporary disruption of existing operations, open excavations and demolition of existing structures.

In addition to the above issues, the Contractor’s planning must consider the Proof-of-

Performance Tests on completion, prior to issue of the Taking Over Certificate.

In this respect, the Contractor shall note that partial Taking Over is not allowed.

5. Environmental and Social Management Plan

The Contractor must carry out all works in accordance with Tanzanian Environmental Laws and Regulations, Environmental Guidelines and Gender Policy and MUM’s Environmental Mitigation and Monitoring Plan (EMMP).

6. Health and Safety Management Plan

Within the time period specified in the Engineer’s instructions, the Contractor shall submit a project specific Health and Safety Management Plan (HSMP) including COVID-19

Management

7. Progress Reports

The Contractor shall submit a monthly progress report to the Engineer. The format, content and level of detail shall be determined by the Engineer.

If the Engineer considers it necessary, the frequency of reporting may be increased.

Alternatively, the Contractor may be instructed to provide a special progress report for a particular section of work (that is significantly delayed for example), on a more frequent basis (eg weekly, or even daily).

7.1 Daily Logs

▪ The Contractor shall maintain a daily site log. The logbook entries shall be prepared in triplicate, with one copy being delivered each day to the Engineer.

▪ The content and format of the Daily Log shall be agreed with the Engineer upon commencement of the contract. However, typically the log shall include the date, weather, numbers/movement of plant and labour, main areas of work and daily activity / progress, deliveries of plant and materials to site, tests, issues, shut-downs, key instructions, accidents, among others.

▪ In addition, the log sheet shall have a space designated for comments by the Engineer.

▪ The Engineer may, at his discretion, instruct the Contractor to provide daily labour and plant returns. Alternatively, the Engineer may request to review such information.

▪ In addition, the Contractor shall provide the Engineer, at his request, with copies of all delivery notes of the plant and materials delivered to site.

7.2 Test Forms

▪ The Contractor shall prepare, to the satisfaction of the Engineer, test forms to be used for the various components of the work.

▪ All test forms shall be completed, signed and dated by the appropriate people conducting the tests.

▪ The original copy of all test forms shall be submitted to the Engineer.

▪ Tests forms shall be submitted to the Engineer regardless of whether the test passes or fails.

7.3 Miscellaneous Forms

The Engineer and/or Contractor shall prepare other forms as necessary. These may include, but are not limited to:

i. Site Instruction form.

ii. Request for information / inspection / approval form.

iii. Day works form; and

iv. Concrete casting form; etc.

7.4 Certificates of Completion

The Engineer shall prepare such forms in accordance with the Conditions of Contract.

These include:

i. Taking-Over Certificate, issued upon successful completion of the Tests on Completion

ii. Performance Certificate, issued upon expiry of the Defects Liability Period and successful completion of defects and all other requirements under the Contract.

8. Access Roads

▪ Where applicable, all pipelines shall be laid within the roadway leave. The Contractor shall be responsible for liaising with RUWASA district Manager to avail all approvals from the authorities that may include TANROADS, TARURA or District Councils for opening the road and reinstating the same. RUWASA district

Manager will apply for permits from the authorities, and related permit costs will be paid by the contractor.

▪ The Contractor shall at all times carry out any work in or adjacent to public roads in a manner to the approval of the Engineer and the responsible authorities and only at such times and during such hours as may be agreed by the competent authority. The Contractor shall obtain any permits from authorities that are required.

9. Tests During Commissioning

9.1 Commissioning Plan

▪ At least one month prior to the proposed commencement date of pre-commissioning and commissioning of a particular completed work, the Contractor shall submit to the Engineer for consideration a Commissioning Plan in both hard-copy and digital “.pdf” formats.

▪ The Commissioning Plan shall set out in narrative and summary tabular forms, a list of the proposed pre-commissioning and commissioning activities to be carried out, for each equipment item, together with proposed start and finish dates.

▪ The Engineer shall review the Commissioning Plan and advise the Contractor of acceptance or otherwise. If the Plan is accepted by the Engineer, the Contractor shall make the necessary preparations to commence commissioning activities as soon as practicable thereafter. If rejected by the Engineer, the Contractor shall attend to any deficiencies noted, revise the Plan and resubmit it to the Engineer for approval. The Contractor shall not be entitled to claim additional time or costs because of having to revise his Commissioning Plan.

▪ A copy of the Commissioning Plan, complete with checklists indicating that all pre-commissioning and commissioning activities have been successfully completed, shall be submitted to the Engineer when commissioning activities have been completed, in both hard-copy and digital “.pdf” formats. Where necessary, commissioning shall be undertaken in conjunction with the equipment suppliers.

9.2 Off-Line / “Dry” Tests

▪ The Pressure testing of pipelines can be inspected and/or tested off-line or “dry”.

Such inspections / tests take place before connecting into the live systems and therefore do not interfere with the on-going operations.

9.3 Commissioning

▪ Commissioning of the transmission mains comprises inspection and operational tests of all valves under actual operating conditions. In addition, it involves providing the necessary for the various equipment, systems, and processes.

▪ The Contractor shall provide suitably qualified and experienced personnel to supervise the operation of the valves up to the date of Taking Over, and attendance during daytime working hours when so required.

9.4 Testing

▪ All equipment shall be tested after installation in accordance with the installed test requirements of the relevant standards.

▪ Inspections and tests shall include all tests recommended in the manufacturer's installation instructions, tests required by any inspecting authority, the tests set out in the relevant standards, and the tests described in this Specification.

10. Operational and Maintenance Tools The Contractor shall provide new sets of operational and maintenance tools that are required for operation / maintenance / repair of the valves and equipment installed under the project as per BoQ. Tools will be subject to Engineer’s approval. The Contractor shall not be entitled to claim additional time or costs as a result of having to replace the rejected tools.

11. Documentation

11.1 As-Built Drawings

▪ Within four (4) weeks of the commencement of the Defects Liability Period, the Contractor shall deliver to the Engineer one complete set of record drawings of all works constructed under the Contract, including all underground works such as pipes, services, cables and conduits.

▪ The Engineer shall review and comment on the draft Record Drawings, and within a further four (4) weeks of receiving the comments, the Contractor shall produce a final set of drawings.

▪ If, during the Defects Liability Period, the Contractor modifies any of the Works, the modifications shall be included as amendments to the As-Built Drawings and all other affected documentation.

▪ The Contractor shall provide six (6) sets of color prints, and six (6) CD’s complete with all electronic drawing files.

▪ The drawing scales shall be such as to clearly indicate all necessary detail and shall be to the approval of the Engineer.

▪ The Contractor shall undertake all survey and measurement of invert levels of the pipes and structures, including re-excavation and backfill of pies and structures where necessary, drafting, supervision and checking as required to prepare accurate and comprehensive as-built drawings.

12. Inspections During Defects Liability Period

▪ The Engineer shall carry out inspections of the civil structures, electrical and mechanical equipment’s, pipeline and pipe-line structures at regular intervals during the Defects Liability Period. The Engineer will give the Contractor due notice of his intention to carry out such inspections, and the Contractor shall arrange for an authorized representative to be present.

▪ The Contractor shall render all necessary assistance during the inspections.

▪ The Engineer shall prepare a report based on the inspections and shall instruct the

Contractor of the necessary works or repairs to be made, and the deadline for such works to be carried out. No payment shall be made for works or repairs that are necessary because of faulty construction, installation, materials or equipment.

The Engineer shall determine when payment shall be made and the unit rates that shall be applied.

13. Flow Meters Water flow-meters installed on Transmission pipelines shall be suitable for use with drinking water.

▪ Meters shall have good accuracy, repeatability and linearity over the full range of flows. Meters shall be capable of achieving an accuracy of +/- 0.2% of reading or +/-0.0001m/s up to a maximum velocity of 6 m/s.

▪ Meters supplied shall match the design flow range for the distribution network and customers to be supplied through the meter is within the optimal flow range of the meter for accuracy and hydraulic performance purposes.

▪ The bodies of water meters shall be manufactured from stainless steel with integrally cast flanges or equivalent suitable for water. The metering tube shall be of stainless steel.

▪ Materials in contact with water shall be non-toxic and shall not affect the quality of the water. The electromagnetic flow shall be suitable for water use.

▪ All meters shall be installed in accordance with the manufacturer’s recommendations. On selection and installation of the meter, particular attention shall be given to distance to changes in direction or diameter of the pipe.

13.1 Meter Installation

▪ The installation of water meters shall be carried out in accordance with the guidelines laid down in the current versions of the American standards of measurement of flow of cold potable water in closed conduits equivalent to following or in accordance with any revisions of the same from time to time: BS

5728:1997 and/or ISO 4064:1993, and/or BS EN 14154:2005 and/or ISO 4064:2005.

▪ All meters and meter reading systems and devices shall be installed and commissioned strictly in accordance with the manufacturers' specifications, instructions, and codes of practice.

▪ The installation characteristics of the selected meter, meter reading system and associated devices and sub-assemblies shall ensure:

i Correct metering in compliance with its specific metrological characteristics.

ii The safety of personnel and user.

iii Easy reading of the Meter index and relevant markings both by Water

Operator’s personnel and water supply customers.

iv It is installed with isolation valves, strainers and provision for cleaning without removing the flow meter.

13.2 Meter Tests

Meter tests shall be in accordance with American standards of measurement of flow of cold potable water in closed conduits equivalent to BS 5728:1997 and/or ISO 4064:1993, and/or BS EN 14154:2005 and/or ISO 4064:2005, and shall be undertaken by an Independent Agency if necessary.

SECTION B: GENERAL SPECIFICATIONS

1. General Requirements

1.1 General

Units

Metric units shall be used on all drawings and for all calculations, flow capacities, instruments, etc.

Abbreviations

Organisations

ASTM American Society for Testing and Materials AWWA American Water Works Association DIN Deutsches Institute für Normung BS British Standard IDA International Development Association IEC International Electrotechnical Commission ISO International Organization for Standardization IS Indian Standard API American Petroleum Institute IEE Institution of Electrical Engineers

MOW

MUM

Ministry of Water Maji na Usafi wa Mazingira

RUWASA Rural Water Supply and Sanitation Agency TANESCO Tanzania Electric Supply Company

TANROADS

EMMP

Tanzania Road Authority Environmental Mitigation and Monitoring Plan

Units

°C degrees Celsius Cc cubic centimeters cm centimeter g gram kg kilogram kgf kilogram force km kilometer kN kilo-Newton l/s liter per second m3/s cubic meters per second m meter m² square meter m³ cubic meter mm millimeter mm² square millimeter

N Newton kW kilowatt mg/l milligram per liter g/l gram per liter kVA kilo volt ampere kA kilo ampere A Ampere mA Milliampere V Volt AC Alternating current DC Direct current

Others

BSCP British Standard Code of Practice BSP British Standard Pipe (Thread)

CP British Standard Code of Practice DN Nominal Diameter

GMS Galvanised Mild Steel HDPE High Density Polyethylene

No. Number NP Nominal Pressure OD Outside Diameter % Percentage UK United Kingdom of Great Britain and Northern Ireland

O&M Operation and Maintenance SI International System of Units rpm Revolutions Per Minute PVC Polyvinyl Chloride uPVC Unplasticized Polyvinyl Chloride PVA Polyvinyl Acetate NTU Nephelometric Turbidity Unit masl Metres Above Sea Level RSJ Rolled Steel Joist

DC Direct Current XLPE Cross Linked Polyethylene

LV Low Voltage HV High Voltage

SWA Steel Wire Armoured LSF Low Smoke and Fume

PE Polyethylene IS Intrinsically Safe

THD Total Harmonic Distortion

1.2 Health and Safety

The Contractor shall provide and maintain for the duration of the Contract adequate and easily accessible first aid facilities at the work sites. The Contractor shall be responsible at all times for the conveyance of sick or injured people to hospital, together with a person trained in first aid

Laws and Regulations

The Contractor must at all times comply with the following laws and regulations, and any other such statutory instruments in force, during the planning, construction and commissioning phases of the Project:

United Republic of Tanzania: Occupational Health and Safety Act, 2003.

United Republic of Tanzania: Workmen’s Compensation Ordinance, Chapter 263 of the Laws.

United Republic of Tanzania: Workmen’s Compensation Regulations, Chapter 263 under Section 41 of the Laws.

United Republic of Tanzania: Law Reform (Fatal and Miscellaneous Provisions), Chapter 360 of the Laws.

United Republic of Tanzania: Workmen’s Compensation Ordinance (Amendment) Act, 1966.

Site-Specific Health and Safety Management Plan

The Contractor shall appoint a Health and Safety Manager who shall have responsibility for all safety issues on the Project. The Contractor must submit a site-specific

Health and Safety Management Plan (HSMP), which shall, as a minimum, address the following in compliance with the laws and regulations listed above:

1. Introduction (including objectives of the HSMP)

2. Hazard Prevention and Control

i) Risk assessment (including description of risk assessment method used);

ii) Prevention, protection and control measures (based on risk assessment performed):

a. Personal protective equipment and clothing: safety goggles, ear plugs, work boots, dusk masks, protective clothing etc.

b. H&S and sanitary facilities, equipment, materials and personnel: first-aid kits and stations, health personnel, safe drinking water, sanitary facilities, accommodations, washing facilities, domestic waste disposal, etc.

c. On-site safety measures and procedures to protect workers against accidents and health risks in the performance of construction-related activities:

i. Site security: access, safety of visitors, separation of work and rest areas, signage, etc.

ii. Handling of raw materials: earthwork, gravel, crushed rock, sand, etc.

iii. Handling of other materials causing dust development, such as cement

iv. Handling of hydrated lime and other activators and additives

v. Handling of asphalt

vi. Hazardous materials management

vii. Handling of inflammable materials

viii. Maintenance of vehicles and machinery

ix. Excavation and trenching

x. Emergency prevention, preparedness, and response.

3. Contractor’s participation in HIV/AIDS Awareness and Prevention Program.

4. Health and Safety Training Program

i) Provide specifics of training and instruction: topics, frequency, modalities, target audiences, instructors, training materials, etc.

ii) Potential topics:

a) Occupational safety risks and prevention

b) Health risks and prevention

c) Use of personal protective equipment

d) Safe work procedures: general and specific.

e) Organization and Management

5. Organizational structure, personnel, equipment, communication and reporting requirements, accident and incident reports, and procedures and tools to verify and ensure compliance with occupational health and safety requirements.

Safety during Construction Competence and Fitness for Work

The Contractor shall ensure that all of his/her personnel, agents and sub-contractors shall be trained, competent and fit to perform the duties assigned to them. They shall be informed by the Contractor of all relevant hazards and given instruction in corresponding safe methods of working, including but not limited to, the correct use of personal protective equipment. This requirement for competence and fitness is the responsibility of the Contractor.

Safe Place of Work

The Contractor shall be fully responsible for the adequacy, stability and safety of all site operations and safe methods of construction for all construction activities arising out of the works.

Personal Protective Equipment

The Contractor is responsible for providing and ensuring usage of all items of Personal Protective Equipment (PPE) necessary for the various work activities. Such items of PPE shall comply with relevant and applicable standards. Unless otherwise agreed with the Engineer, these shall include as a minimum:

● Safety helmets and safety footwear, to be worn at all times.

● High visibility vests shall be worn by the Contractor's staff and visitors, in situations where there is danger from vehicular traffic or machinery.

● Eye protectors (egg. visors, goggles and safety glasses) shall be used for all work activities and situations that could result in serious eye injury (egg. welding, grinding, using chainsaws, breaking rock, using chemicals, etc);

● Ear protectors shall be used whenever the noise level exceeds 90dBA or whenever using equipment that causes the noise level to exceed 85dBA;

● Safety harnesses shall be used when working at a height of more than 2 meters.

Safety Audit Reports

A safety audit shall be completed each month by the Contractor. The report shall be completed on a standard form provided by the Contractor and approved by the Engineer.

Copies of audit reports shall be provided at site progress meetings in advance of each progress meeting.

The Engineer reserves the right to carry out safety audits of Contractor’s works. The

Engineer shall notify the Contractor of any defective practices and may request to have these practices improved or prevented within a specified time period.

Daily Safety Planning

Before beginning work each day, the Contractor's person in charge of work (charge-hand or foreman) shall take due consideration of all safety issues. This will involve considering the risks associated with the work in hand and steps taken to mitigate the risk identified. The Contractor shall demonstrate that adequate safety planning is undertaken by:

● Providing completed safety reports as specified within this procedure.

● Ensuring the safety of all persons affected by the Contractor's own activities and/or his employees, agents and subcontractors.

● Ensuring the safety of the Contractor's personnel (including without limitations his subcontractors and / or agents working for the Contractor) with respect to all hazards, including those hazards advised by the Engineer.

● Advising the Engineer of any hazards that the Contractor's activities might pose to persons other than the Contractor's own personnel (including sub-contractors working for the Contractor) or to Employer's plant and equipment.

● Compliance with the legislation including the Contractor's Method Statements by ensuring that, except by prior and mutual agreement, or in all cases of emergency, all communication on safety related issues shall be between the Engineer and the Contractor's Representative. Where other persons are given such a role, their mandates shall be clearly established and confirmed in writing between these two persons. The Contractor's Representative (or his nominee) shall be present on site at all times while the Contractor's personnel are working on the site.

Stopping the Works

Breaches of safety procedures by the Contractor shall not be tolerated.

The Engineer shall stop work at any time if unsafe practices are being used, and there is a risk to any individual working on site or to the general public. The Engineer also reserves the right to insist on the removal from the works of any individual found to be in breach of these procedures. Where a particular work practice has been identified as unsafe in the opinion of the Engineer, the Engineer shall inform the Contractor and instruct the Contractor to rectify or terminate the practice within a specified time.

No consideration will be given to claims about extension of time or additional costs, resulting from delays caused by breaches of safety procedures.

1.3 Minimization of the Spread of HIV / AIDS and Child Abuse

Scope

This Specification sets out the Contractors obligations regarding on-site HIV/AIDS awareness campaign and preventive measures which are to be instituted.

HIV / AIDS Considerations

Given the seriousness of the HIV/AIDS problem, and the perception that projects and personnel involved serve as one of the principal means of the virus moving from one part of the country to another, the Employer is integrating HIV/AIDS issues into all of its activities.

Project staff are identified as a vulnerable group by the National Strategic Plan on HIV/AIDS. In this regard, the contractor shall implement an HIV/AIDS awareness and prevention campaign by making sure that there are regular HIV/AIDS awareness and prevention programs. The Contractor shall allow his site employees and neighbouring community to attend HIV/AIDS awareness campaigns.

General Requirements

The Contractor shall allow his employees to take part in a continuing HIV/AIDS awareness and prevention campaign for the duration of the contract.

As part of the campaign the Contractor will be required to display AIDS awareness posters in all buildings frequented by workers employed on the contract, where such building fall under the control of the Contractor.

AIDS awareness shall also be included in the orientation process of all workers employed on the contract. The Contractor must indicate in the work plan orientation on HIV/AIDS for new staff. The Contractor shall make his staff available for HIV/AIDS awareness training.

The prevention of sexual abuse and exploitation of children will form part of this campaign.

The scope of activities shall be tailored by the NGO managing implementation of HIV/AIDS awareness and prevention programs as required to meet the perceived needs and priorities of the labourers, determined by participatory approaches, to ensure they are appropriate, desired and have a public health impact. The scale and frequency of activities may also be adjusted to suit the requirements of the target group. The appropriate timing for this activity will be agreed with the Contractor. The Campaign shall also involve the neighbouring communities.

Contractor Responsibilities

The Contractor and NGO will work closely together to support the HIV/AIDS awareness and prevention activities. This will ensure maximum effectiveness and integration with construction activities. Specific but not exclusive issues are:

• Scheduling of appropriate timing and duration for the implementation of HIV/AIDS activities as part of work plan for labourers and supervisors.

Designated rest times such as lunch breaks and pay days should be excluded.

• Identification of suitable individuals for education from recruitment records with the implementing organization.

• Provision of suitable sites for communication activities and for condom distribution. The Contractor must provide a meeting room for the training, but condoms will be provided.

• Provision of support as necessary to the NGO.

Timing

Activities will commence at the start of the construction period and continue throughout the construction period.

1.4 Environmental Requirements

The Contractor must carry out all works in accordance with Tanzanian Environmental Laws and Regulations, Environmental Guidelines and Gender Policy and MUM’s Environmental Mitigation and Monitoring Plan (EMMP).

If s required by the Contract, the Contractor shall prepare site-specific ESMP to comply with the guidelines set out below.

The site-specific ESMP is the Contractor’s operative document on how to mitigate, inspect and monitor potential Project impacts during mobilization, construction, and demobilization. In this sense, it is an eminently practical and concrete instrument.

Based on the above, the structure and content of the site-specific ESMP shall emphasize the following aspects:

1. Executive Summary

2. Introduction

3. Project Description

i. Focus on impact-generating activities (eg. demand of water and materials, earth movement, etc.);

ii. Environmental liabilities: identify and include a photographic registry of pre-existing environmental liabilities (eg., gully erosion areas, abandoned borrow pits, unauthorized dumping sites, etc.) that are not attributable to the implementation of the project.

4. Potential Impacts during Mobilization, Construction and Demobilization

i. Apply simple rating of significance.

ii. Quantify / qualify impacts (eg. surface and type of vegetation to be removed, amount and type of wastes to be generated, noise levels, etc.);

iii. Identify places where specific impacts will manifest.

5. Mitigation Plan

i. Specify the detailed measures to mitigate the identified impacts (also by location);

ii. Include designs for measures requiring structural solutions (eg, gabions, etc.);

iii. Include the schedule of implementation of mitigation measures in relation to the general construction schedule.

iv. Health and Safety Plan (detailed);

v. Waste Management Plan (detailed);

vi. Traffic Management Plan (detailed);

vii. Training Program (detailed);

viii. Accident and Emergency Response Plan (detailed);

ix. HIV/AIDS Awareness and Prevention Program (include only a reference to this

Program to be prepared by an NGO);

x. Community Relations Program.

xi. Location and technical specifications for installation and operation of campsites, including workshops, garages, laboratories, offices, sanitary installations, etc;

xii. Location, and technical specifications for operation of quarries and borrow pits, and procedures for negotiation with and compensation of landowners where they are located.

xiii. Location and technical specifications for installation and operation of concrete batching, stone crushing, cement mixing and asphalt plants.

xiv. Location and technical specifications for installation and operation of temporary and permanent dump sites.

6. Inspection Plan

i. Inspection function: specify frequency, locations, and instruments (egg., checklists, site reports, photo registry, etc.) to conduct site inspections.

ii. Permitting: required environmental permits and schedule to obtain them.

iii. Specific actions and responsibilities: what, who, where, when, how and why

7. Monitoring Plan

i. Specify, for each variable: frequency of measurement, locations, methods/equipment, units/measures, quality standards, and reporting requirements and periodicity, including establishment of trends.

ii. Specific actions and responsibilities: what, who, where, when, how and why

8. Organization and Management

i. Specify organizational structure, personnel, resource, and equipment requirements, reporting requirements and periodicity, and inter-institutional communication and coordination mechanisms.

ii. Specific actions and responsibilities: what, who, where, when, how and why

9. Annexes

i. If the Contractor wishes to incorporate information beyond the indicated above, such as the policy, institutional and regulatory framework for environmental management in Tanzania, biophysical and socio-economic characteristics of the area of influence of the Project, Environmental Guidelines or Gender Policy, etc., that information should be included as an annex and not in the body of the site specific ESMP. Preferably, such information should not be attached and, further, if necessary, the pertinent chapter of the ESIA should be referenced.

ii. Annexes should be used, if necessary, to include detailed information on the specific topics of the ESMP (eg, inspection forms or checklists, design of structural mitigation measures, photographic registry of environmental liabilities, etc.).

1.5 Contractor's Staff, Communication, Offices, etc.

Language of Correspondence and Records

All communications shall be in the English language. All books, time sheets, records, notes, drawings, documents, specifications, and manufacturers' literature, etc. shall be in the English language. If any of the aforementioned is in another language a certified translation into English shall be submitted with the documentation concerned.

Contractor's Representation on Site

At least one named responsible senior representative of the Contractor, fully empowered to execute the contract, shall be immediately available at all times and shall be on the Site during normal working hours.

In the absence of the Contractor's representative a deputy shall be appointed whose name shall be notified to the Engineer at least one day before the absence of the Agent and at least three days before any absence exceeding one day. To the senior representative (or his deputy) shall be delegated full authority to confer with the Engineer and to take all steps and to issue all instructions which may be required in an emergency to ensure the safety of all personnel and the Works, and of all the Employer's and other property on the Site and in the immediate vicinity thereof.

Personnel

The Contractor shall ensure that at least one senior member of his field supervisory staff, who is experienced in such operations and fluent in both English and the language of his labors, is on site throughout the whole duration of the work.

The Contractor shall also ensure that all necessary skilled artisans for the operation of all his work are on site throughout the work. The Contractor shall obtain the approval of the Engineer not less than 48 hours before the commencement of the work in respect of each of such personnel. To gain this approval, the Engineer may require that such operative is tested in the performance of his duties in the operation of the work for which he is in attendance. In particular this requirement shall apply to all welders, Plumbers, Carpenters and Masons.

The Contractor shall ensure that an adequate number of labors are in attendance upon the site during the period of the work.

1.6 Contractor's Yards, Stores and Accommodation for Workmen

The Contractor shall make his own arrangements for all land, yards, stores, workshops, offices, etc. required by him for the purposes of the Contract and for all services in connection therewith.

The Contractor shall provide sufficient closets or latrines to the satisfaction of the Engineer and the relevant authority, for the use of his personnel. They shall be properly always screened and maintained in a clean and sanitary state.

The Contractor shall be responsible for making all arrangements for the disposal of waste from mess rooms, closets and latrines.

1.7 Precautions against Contamination of the Works and Environment

Throughout the Contract, the Site and all Permanent and Temporary Works shall be kept in a clean, tidy and sanitary condition.

The Contractor shall always take measures to avoid contamination of water courses, drains and the environment by petrol, oil or other harmful materials.

The Contractor shall include specific details in the site-specific ESMP regarding their plan for discharge and disposal of the testing and sterilizing waters beyond the requirements of the ESIA. .

The Contractor shall comply with the requirements of the Environmental Management Plan and MUM’s EMMP.

1.8 Restrictions on Use of Roads

Traffic Restrictions

The Contractor shall observe all weight and dimensions restrictions which apply to roads and tracks in Tanzania, and he shall comply with all reasonable restrictions which may from time to time be imposed by the Engineer, Employer, Police, responsible authority or owner. Where damage to roads and tracks are caused by the Contractor this shall be repaired at the Contractor's expense.

The Engineer shall have the power to restrict the Contractor's use of any roads, or tracks in terms of direction of traffic, speed of traffic, numbers of vehicles or their axle loading in order to preserve such roads or to make them safe for use by the general public.

1.9 Temporary Water and Electricity Supplies

The Contractor shall, at his own cost, provide at Site an adequate supply of water and electricity both for the execution of the Works and for the health and safety of his workmen and other persons legitimately on the Works.

1.10 Existing Services

General

The Contractor shall make himself acquainted with the positions of all existing services such as sewers, drains, electrical cables, telephone lines, water mains, etc before any excavation or other work commences. The Contractor shall liaise with the necessary authorities before and during the execution of such work. Any work near or on the services shall be done to the complete satisfaction of the respective Authority, or its representative, and the Engineer.

The Contractor shall take every precaution to ensure that all existing services within and near the line of the works, are located, supported, and safeguarded from damage. Any damage caused to any such services attributable to the Contractor's operations or his negligence shall be made good by the Contractor at his own expense to the satisfaction of the Engineer, owner, or responsible authority.

In the event of the owner or the responsible authority electing to repair such damage the Contractor shall pay the cost of so doing the work. Should the Contractor fail to pay the cost of the said work within one month of the account being presented, the Employer reserves the right to settle the account and deduct the sum from monies due or which may become due to the Contractor.

Temporary Removal of Existing Services

If it should become necessary to temporarily relocate a service during construction, the Contractor shall obtain permission from the Engineer and the responsible authority or owner and shall carry out the work at his own expense in a manner and at times to be approved by such authority or owner and shall subsequently reinstate the work to the satisfaction of such authority or owner.

In the event of the owner or the responsible authority electing to arrange for the temporary removal of an existing service, the Contractor shall pay the cost of his or their doing the work. Should the Contractor fail to pay the cost of the said work within one month of the account being presented, the Employer reserves the right to settle the account and deduct the sum paid by him from monies due or which may become due to the Contractor.

Permanent Diversion of Existing Services

If, in the opinion of the Engineer and/or of the responsible authority or owner, it should become necessary to permanently remove or realign a service, the Contractor shall obtain permission, where necessary, from the authority or owner and shall carry out the work to the satisfaction of the Engineer and such authority or owner.

In the event that the responsible authority elects to carry out the work, the Contractor shall allow them the facilities and assistance they may require and shall pay the responsible authority, against provision of an authorized invoice and receipt, for the costs of such works.

Payment for such additional work will be made in accordance with the Contract, provided always that the necessity for such permanent diversion has not arisen due to the fault of the Contractor.

In the event of the owner or the responsible authority electing to arrange for the permanent diversion of an existing service, the permanent diversion of which has become necessary due to the fault of…