| I E65 VOL. 4 TANZANIA ELECTRIC SUPPLY COMPANY LIMITED I REINFORCEMENT AND UPGRADE OF DAR ES SALAAM, KILIMANJARO AND ARUSHA rRANSMISSION AND DISTRIBUTION SYSTEM PROJECT I~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 4~~~~~~A .I ENVIRONMENTAL AUDIT OF 18 SUBSTATIC NS FINAL REPORT * NOVEMBER 2005 I . SUBMITTED TO: National Environment Management Council World Bank P. 0. Box 63154 1818 H Street, NW I Dar es Salaam Washinaton DC 204 33 USA Tel.: 255-22-2127817 Tel: 202-477-6391 Fax: 255-22- 2134603 Fax: 202477-1234 E-mail: [email protected]Website: http://w rw.worldbank.org Prepared by: SCANNE- Tanzania Electric Suppl) Company Limited *_AC_ - Directorate of Corporate Plani ing and Research Accissioi No. _ I ox No. Environment Unit CabinetlDrawer/Folder/Subfolder P. 0. Box 90 4, Dar es Salaam I 2 0 cDTh1 Tel: + 55 022 2451130/39 Contact: krabd [email protected]Website: wN. tanescotz.com II - _______________ Public Disclosure Authorized Public Disclosure Authorized Public Disclosure Authorized Public Disclosure Authorized Public Disclosure Authorized Public Disclosure Authorized Public Disclosure Authorized Public Disclosure Authorized
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| I E65VOL. 4
TANZANIA ELECTRIC SUPPLY COMPANY LIMITED
I REINFORCEMENT AND UPGRADE OF DAR ES SALAAM, KILIMANJARO AND ARUSHA rRANSMISSIONAND DISTRIBUTION SYSTEM PROJECT
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ENVIRONMENTAL AUDIT OF 18 SUBSTATIC NS
FINAL REPORT* NOVEMBER 2005
I . SUBMITTED TO:National Environment Management Council World BankP. 0. Box 63154 1818 H Street, NWI Dar es Salaam Washinaton DC 204 33 USATel.: 255-22-2127817 Tel: 202-477-6391Fax: 255-22- 2134603 Fax: 202477-1234E-mail: [email protected] Website: http://w rw.worldbank.org
Prepared by:SCANNE- Tanzania Electric Suppl) Company Limited
*_AC_ - Directorate of Corporate Plani ing and ResearchAccissioi No. _ I ox No. Environment UnitCabinetlDrawer/Folder/Subfolder P. 0. Box 90 4, Dar es SalaamI 2 0 cDTh1 Tel: + 55 022 2451130/39
I+ Reinforcement and Upgrade of Dar es Salaam, Kilimanjaro and Aruha Transmissionand Distribution System
EXECUTIVE SUMMARY
* 1.0 Background
The demand for electric power in Tanzania has been on increase due to the g owing economicand social situation in the country. Good govemance, good policies, investor ' confidence andeconomic recovery programmes have stimulated the economic growth and sc cial activities. In1986, Tanzania introduced and embarked on Economic Recovery Programme (E RP) backed by aI series of IMF inspired structural adjustment programmes. ERP concentrat d on reformingagriculture, opening up the private sectors, deregulating food marketing, libe ralized trade andlifting foreign exchange controls. These programmes have resulted into urb nization and theI growth in mining sector. The implication of these programmes to TANES O has been theincrease of a number of customers in major cities in need of electricity conn ctions. However,most of the infrastructure have reached their capacities and cannot allow c nnection of newii |customers unless they are rehabilitated. The most affected are the substations and their voltagecarriage lines located in Dar es Salaam, Arusha and Moshi town centres.
l Tanzania's economy still faces considerable difficulties and many necessary r forms remain tobe implemented. It is important then for TANESCO and the Government of Ta nzania to supportthe industrial sector recovery by preventing frequent power outages and impro ie power quality.This involves putting new investment in distribution systems and development f new sources ofelectricity.
In Tanzania, only about 11% of the population (34million)' enjoys the ele tricity. The totalnumber of customers (residential, industrial and commerce) connected by the nd of June 2005was 570,665 with average growth of between 6-9% since year 2000.2 In terms f generation, thetotal available installed capacity is 890MW. The sources include TANE SCO (590MW),SONGAS (200MW), and the Independent Power Tanzania Limited-IPTL (1001 4W). TANESCOalso imports power from Uganda and Zambia for Kagera region and Tunduma, Sumbawanga andMbozi towns respectively.
l TANESCO has a number of substations scattered all over the country. Some s bstations are forthe stepping-up from e.g. l1kV to 220kV using 11/33/66/132/220kV conver ion transformersand some are step-down substations which reduce the transmission voltage into distributienI voltage, say from 220kV to 1 kV. This environmental audit study was condu ted on some stepdown substations ranging from 220/132/33kV to 33/1 1kV.
I In 2002, TANESCO in collaboration with Japanese International Cooperatio Agency (JICA).. prepared a Master Plan to improve the power systems in major towns o Dar es Salaamn,
Kilimanjaro and Arusha. The current power demands for these regions are on iverage 240MW,30MW and 38MW respectively.3 The Master Plan outlines areas of priority and investmentsneeded to solve the frequent power outages experienced in major cities. Fu ther, TANESCO
12002 census2 source TANESCO3 Source TANESCO, data up to May 2005
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| Reinforcement and Upgrade of Dar es Salaam, Kilimanjaro and Ar sha Transmissionand Distribution System3 l undertook several studies including Relief Project 2 done by NetGroup Solu ions (Pty) Ltd of
South Africa in 2004 and feasibility study on the Reinforcement and Upgrade f Dar es Salaam,l Kilimanjaro and Arusha Transmission and Distribution system done by Lahm yer Intemational
of Germany in September 2004. All these studies identified areas of pri rity and type ofinvestment needed by TANESCO to improve the transmission and distribution ystems.
l Based on the above-mentioned studies, TANESCO consulted various fi anciers to seekassistance in implementing different components of the Master Plan. The Wo Id Bank (WB) asone of the contacted financiers showed interest in supporting TANESCO in t at respect. HenceI TANESCO and the International Development Association (IDA)/World B k are currentlypreparing a distribution rehabilitation and transmission reinforcement compo ent as part of theSongo Songo Gas Development and Power Generation Project (Credit 3569- A). The amountunder discussion with the WB is about US$ 57 million.
l 2.0 The Project
The proposed project to be owned by TANESCO and co-financed by the W rld Bank and theNordic Development Fund (NDF) at an estimated cost of 70m USD consists of wo components:The first component involves the rehabilitation of 18 existing substation at Oyster Bay,Mikocheni, Msasani, Factory Zone I, Factory Zone II, City Centre, Factory one III, Sokoine,Kurasini and Ilala in Dar es Salaam. Others are Mount Meru, Unga Ltd., Kilt Ltd, Themi andNjiro in Arusha and Boma-Mbuzi, Trade School and Kiyungi in Kilimanjaro region. These 18substations out of all substations in Dar es Salaam, Arusha and Kilimanjaro h ve been selectedfor the rehabilitation because they are located in the areas with fast growing p wer demand andthe systems have reached the capacity limit hence they are overloaded. Furth r there will be arepair and upgrade of the 11/33 kV distribution systems. This rehabilitatio of Distribution
l Facilities involves:* Supply and installation of 22 additional 15MVA, 33/llkV transform -rs to relieve the
overload in the existing substations (i.e. replacing low capacity transfo ers e.g. 5MVAwith medium capacity of 15MVA transformers)
* Supply and installation of about 33, 33/llkV circuit breakers and 24 llkV circuitbreakers with associated switchboardsI * Supply and installation of 50MVA 132/33kV transformer with a ircuit breaker atKiyungi, Njiro, and Kurasini Substations.
;-| * Supply of materials and equipment for repair/upgrading of the distributi n systems which.| make a provision for the following: reconductoring, protection syste ns, auto-reclosers
and auto load break switches, SCADA, section analysers, boosters, ligh ening protection,13 distribution transformers, new 33/1 1kV lines and statistical metering
Upgrading of substations means replacement of power transformers by a hi her rated powertransformer and its associated breakers. This will involve mainly upgrading of he foundations toa higher bearing capacity, thus necessitating having temporary measures in pla e to avoid poweroutages.
* The second component involves the construction of new 132kV trans nission lines thatwill connect the Ubungo Main substation with upgraded 132/33kV Oys er Bay, Kurasini,
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Mbagala, Factory Zone II (Gongolamboto), Kinyerezi and Factory one III (Kipawa)substations. Also component two involves the construction of addition- I Kiyungi - Njiro
l 132kV transmission line.
2.1 Project ObjectivesThe project will achieve the following objectives:
X * Reducing the duration and frequency of power interruptions* Improving voltage conditions at consumers' premises* Reducing the power system losses* Improvement in marketing by facilitating the possibilities of connecting more customers* Improvement of TANESCO image to the public (less complains from cl istomers)l Attraction of more revenue for the company* The project will contribute to the effort by the Tanzanian Government of improving the
livelihood of ordinary Tanzanians through the National Strategy for the Growth andReduction of Poverty in Tanzania (MKUKUTA)
Component 1 of this project requires a comprehensive Environmental Audit A ssessment (EAA)I which is reported in this report while component 2 has separate comprehensiN e reports namely;Environmental Impact Assessment (EIA and SIA) and Resettlement Action Pla i (RAP).
l 3.0 The Purpose of the Environmental Audit Assessment
World Bank requires that all investments comply with the World Bank Safes uard Policies and* Environmental Guidelines as presented in the Pollution Prevention and Aba ement Handbook
(1998) and IFC Environmental Guidelines. It is also a Tanzanian requiremer t that all projectsl should undertake the Environmental Assessment before the implementatio . The Tanzanian
Environmental Management Act (2004) section 81(1-4) stipulates that it is the obligation of theproject proponent to undertake environmental impact assessment study of the p oject.
* Hence, for this study the following major guidelines and policies will be appli d: Electric PowerTransmission and Distribution guidelines (IFC), Occupational Health & Safety (IFC), andNatural Habitat (OP 4.04) because of potential oil pollution. Additionally, nat onal requirementas reflected in various Tanzania's sectoral policies, the National Environrrent ManagementCouncil (NEMC) Environmental Impact Assessment Guidelines (2002 apdate) and theEnvironmental Management Act (2004).
The purposes of the Enviromnental Audit Assessment are:l To identify present inadequacies in environmental management, and o cupational health
and safety issues in the facilities to be rehabilitated. Of particular interc st are the presentpollution if any and its potential clean-up costs
0 To determine the need for remedial actions necessary to bring the sub. ect facilities intocompliance with World Bank Safeguard Policies and
0 To recomrnend actions to be taken to improve and strength n TANESCO'senvironmental, health and safety management
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J 3.1 Scope of WorkThe Environmental Audit Assessment focused only on the 18 existing substati ns earmarked forrehabilitation in Dar es Salaam, Arusha and Kilimanjaro as outlined above plus one additionalsubstation at Chalinze in Coast Region. The Audit took place in November and December 2004.
4.0 Methodology and Approach
To accomplish the audit assessment the following approach was applied:
4.1 Reviewing records and relevant documentsAll available relevant in house documents were reviewed. The documents i clude: the MasterPlan Study on the Power Sector for Major Towns in the United Republic of Tanzania (2002) byEPDC of Japan; Reinforcement and Upgrade of Dar es Salaam, Kilima jaro and ArushaTransmission and Distribution System Feasibility Study Report (200 ) by. LahmeyerInternational; Environmental Management Act (EMA -2004); NEMC s EnvironmentalGuidelines (2002); various Tanzanian sectoral policies; World Bank .Operatior at Policies; WorldBank, (IFC) Pollution Prevention and Abatement Handbook; environmental and occupationalhealth and safety guidelines and standards. These documents formed a founda ion of conductingthis environmental audit through a checklist.
The checklist identifies issue as per the following criteria as deduced fr m the guidelinesmentioned above.
* General environmental management;l * Waste management practices;
* Hazardous materials management;* Groundwater and soil contamination control;
X * Occupational health and safety management; and* Noise management (Noise level measurements were taken in some su stations to get an3 overview of the noise levels in the substations)
4.2 Site Observations and InterviewAll 18 substations in Dar es Salaam, Kilimanjaro and Arusha were visited for ssessment plus anadditional one at Chalinze. Consultations with NEMC and Municipal auth rities were madebefore the site visit. Also during the site visit, interviews and brief meetings ith relevant staff
l and residents around the substations were conducted.
4.3 Use of secondary datal Due to resource constraint, this assessment used available data and laboratory test results for
identifying polychlorinated biphenyls (PCB) in transformers and switchgeirs conducted byprevious studies in the same substations. The studies include Situation Assessment andEnvironmental Audit, Power Sector Restructuring Project- Final Report Versi n 2.0 prepared byStone & Webster Consultants, May 2004 and Inventory of Electrical Equipn ent Suspected toContain Polychlorinated Biphenyls (PCBs) prepared by the Vice Presidents Of ice June 2004.
4.4 PCB identification methodsThe PCBs identification methods used in this study include:Environmental Audit Rcport -Final iv
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l l ~~~Manufacturer's narneplate informnation; Elimination method cut off year assur ed 1980; Densitytest; Chlorine frame test; Dexsil test kits; and Laboratory testing (gas chromatogr phy with electroncapture then comparing results against standard chromatograms for known arochlors).
Transforner found to contain concentration of less than 50ppm of PCB was lassified as PCBfree. Equipment found to have 50ppm or above but below 500ppm vras classified as
l contaminated. Equipment found to contain 500ppm and above of PCBs is classi fied as pure PCB.
4.5 Findings evaluationl Through field observations, site screening tests, laboratory analysis, checklist and professional
judgment the audit findings were evaluated and prioritized as of high, mediui or low concerndepending on the severity of the problem and health, safety or environnen al impact it maycause.
5.0 Report format* This environmental audit report comprises of five chapters, introduction o the project and
methodology; legal framework; baseline information and the audit findinE s; environmentalmanagement plan & monitoring; and conclusion and recommendation. The rep rt has appendicesthat include location map of substations, photo documentation, PCB laboratory results of somesubstations, the criteria checklist of audited substations and list of consulted pe ple.
6.0 Public ConcernThe major public concern was a health risk due to electromagnetic effect. No n ise complains orI concerns were reported during the survey.
I | 7.0 Remedial CostsThe identified weaknesses are small and could be covered in region's repair and maintenancebudgets. Regions need to provide the remedial budgets as appropriate so t at the costs areincluded in the annual budgets for approval.
Note: Laboratory analysis of the soil sarnples under the transformers susp cted of PCBs isawaiting the budget. When budget is secured soil samples will be sent for the la oratory analysis.
8.0. Training Needs3 It is proposed that as part of this project, training should be considered foc sing on capacitybuilding of the environmental unit in areas of Environmental Audit, Social Imp ct Assessment &management, health and safety awareness seminars and work procedure for Substation
l engineers, technicians and operators. The anticipated cost for the training and quipment for theyear 2006 is about USD 69,300.
l 9.0 Environmental Management Plan (EMP)Environmental Management Plan (EMP) and monitoring have been included. E dP has identifiedenvironmental impacts and their mitigation measures. Monitoring plan has sti ulated indicatorsI to be monitored and required resources to ensure that mitigation measures ar implemented. Itimportant that TANESCO provide resources estimated to be USD 11,000 annu lly to implementthe EMP as shown on the plan.Environmental Audit Repon -Final v
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I 10.0 Major Audit findings and RecommendationsBelow are the recommendations following the audit findings. Correction o these observed3 weaknesses and shortcomings is important so as meet the minimum World Ban; requirement:
* High Priority
1. TANESCO should ensure that transformers identified having PCB cont mination (below500ppm) are not moved from where they are located. In addition substation -ngineers shouldI ensure that there is no leakage to the soil or water. Further there should b appropriate oilhandling at all times while waiting for the national strategic plan to elimina e POPs preparedby the Vice Presidents Office (VPO)
2. Although training has been taking place in TANESCO, trainings specific illy designed forsubstation engineers, technicians. and operators have been scarce and lim ted to very fewI . individuals. TANESCO (Head office which coordinates employees' trainin s in cooperationwith regional offices) needs to organise regular courses (tailor made train ng programs) tosuit different cadres of substation employees and others. such as training n ay include workprocedures, health and safety matters, hazardous material handling and emergencypreparedness and response
l 3. Since it was observed that no clear identification of who has been assigned responsibility oftaking care for the environmental matters of the substations. Therefore, sub tation engineersor supervisors should be assigned also such a responsibility and re uired to reportperformance in monthly reports
4. Waste management need to be improved in all the substations as this was seen to be a* problem in most substations. Substation management should designate spec al areas (points)
for waste collection before safe disposal. Special bins can be used to store ollected wastes3 such as pieces of cables, insulators and other wastes in the substation site bef )re disposal
5. Raise awareness of people working in the substation on the potential hazard f oil spill to thel l environment and how to handle it appropriately during refilling, oil filtering r maintenance.
l 6. TANESCO Regional Offices -are required to provide toilets and askari kios facilities in thesubstations for the convenience of workforce. There are some which need repair and somewhich need to be constructed. With exception of Njiro, Kiyungi, Ilala, and FZ III all othersubstations lack toilet, askari kiosk or both.
7. TANESCO (Regional Offices) should collect all old transformers dumped a substation siteswhich some of them have oil leakage and dispose them or store them in appr priate designedareas that may contain or prevent the oil leakage into the soil.
* 8. TANESCO should provide adequate fire fighting equipment in a right propo tion (foam, C02
and powder) to fight any fire type in the substations and ensure that equipm nt are regularlychecked to be sure that they are working properly. Some substations had inadequate firefighting equipment or right proportion.
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9. TANESCO should provide resources estimated at least USD 11,000 ann ally to facilitateimplementation of the proposed ESMP and monitoring plan. Other mitiga ion costs will becovered in construction costs.
10. TANESCO Regional Offices should budget and urgently replace all lost o broken lids andl slabs to improve the safety in the substations as some of the cable trench labs were found
broken or missing increasing a safety risks at night and in emergency cases.
l 11. TANESCO's substation engineers in collaboration with their Regiona Offices shouldreequip the First aid kits as required since most of first aid kits are n t equipped with
l essential drugs.
12. TANESCO should ensure that fences are repaired, security lights worki g again and alldanger signs replaced to alert people of the potential dangers as they approa h the fences
Medium Priority
l 13. TANESCO needs to prepare an emergency response plan in the event of fir , major accidentor major oil spills. All audited substations didn't have the plan. Workers nee to rehearse andunderstand the information flow in case of the emergency so as to check Nhether the planworks as intended. Information flow charts should also be posted at a visible place
14. Since TANESCO has so far no formalized Environmental Management ystem (EMS) inspite of having an environmental unit, which deals with environment 1 matters. ThenTANESCO has to develop an EMS suitable to its activities or adopt ISO 1 000 standard inorder to improve its environmental management performance. In ad ition, fund forimplementing management plans should be made available
15. TANESCO should strengthen environmental management both a Head OfficeEnvironmental Unit and at the implementing Regions or plants
l 16. TANESCO departments and substation engineers should prepare work pr cedure manualsand instructions where such instructions are very essential and make .thein available in aknown language to all substation workers. Many substations had n-o workin procedures andinstructions at all or had instruction written in a language not understandable by majority.
Overall TANESCO Management ResponseI TANESCO acknowledges the corporate responsibility and shall take correctiv measures ofthe identified environmental and health aspects. The work and budget will be i cluded in thecompany's business plan and eventually incorporated in the Company E vironrnientalManagement System (EMS).
TANESCO is committed to follow the country's policies and continue to comn unicate withrelevant sectors and ministries to ensure that environment is protected and hea h and safetyof workers and people around our facilities is guaranteed.
Reinforcement and Upgrade of Dar es Salaam, Kilimanjaro and Ar sha Transmissionand Distribution System
Acknowledgement
We would like to thank Directorate of Corporate Planning and Research for r sources guidanceI and facilitation to the success of this Environmental audit study.
We also like to acknowledge the constructive inputs and advice we received rom the NationalEnvironment Management Council (NEMC) beginning with ToR preparat on to the Multisectoral Technical Review Committee meeting.
We thank TANESCO Regional Managers Mr. Masasi, C. L. (Arusha), Mr Richard Nsulau(Kilimanjaro), Ms Eva Fumbuka (Kinondoni North), Mr. Kalokola M. (Ilala) nd Mwaisaka N.
* (Temeke) for their consultation time and assistance whenever we asked the i. We also thankm their staff of all levels who participated in one way or another in the Env ronmental Audit
exercise.
Cooperation and assistance rendered by various staff of Municipal Councils f Arusha, Moshi,Kinondoni, Ilala, and Temeke is highly appreciated.
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ABBREVIATIONS AND ACRONYMS
AC - Air ConditioningBOD - Biological Oxygen DemandCBD - Convention on Biological DiversityCFCs - ChlorofluorocarbonsCOOPs - Code of Operating PracticedB - Decibel - a unit for noise levelEAA - Environmental Audit and AssessmentEIA - Environmental Impact AssessmentEMA - Environmental Management Act
i | EMP - Environmental Management Program (Plan)EMS - Environmental Management SystemEPP - Emergency Power ProjectESAMP - Environmental and Social Assessment Management PlanFZ - Factory Zone
*IIDA Intemational Development Agency| IDO - Industrial Diesel OilIFC - International Finance CompanyIPTL - Independent Power Tanzania LimitedI ISO - International Standard OrganizationISRS - International Safety Rating SystemJICA - Japanese International Cooperation AgencyI KIA - Kilimanjaro International AirportkV - kilo VoltsMVA - Mega Voltage AmperesI MW - Mega WattsNEMC - National Environment Management CouncilNEP - National Environmental PolicyOCB - Oil Circuit BreakerOHSMS - Occupational Health and Safety Management SystemOP - World Bank Operating PolicyPCBs - Polychlorinated biphenylsPEP - Provisional Envirorunental PermitPOPs -Persistent Organic PollutantsPP - Personal Protectiveppm - Part per million
: | RAP - Resettlement Action Plan| U SHE - Safety Health and Environment
SIA - Social Impact AssessmentS/S - SubstationSSE - Substation EngineerT/L -Transmission line
l TANESCO - Tanzania Electric Supply Company LimitedTDS - Total Dissolved SolidsTL - Team Leader
Reinforcement and Upgrade of Dar es Salaam, Kilimanjaro and Aru ha Transnissionand Distribution System
TQM - Total Quality ManagementTRC - Technical Review CommitteeTSS - Total Suspended SolidsUDSM - University of Dar es SalaamVPO - Vice President's OfficeWB - The World Bank
l WHO -World Health Organization
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Table of Contents
*CHAPTER I1.|l
CAINTRODUCTION ............... 1
1.0 BACKGROUND ................................................ ............................ I1.1 THE PROJECT ............................................... 2 ............................ 2I 1.2 THE PURPOSE OF THE ENVIRONMENTAL AUDIT ASSESSMENT ....................................... ............................ 41.3 SCOPE OF WORK ................................................ ............................ 41.4 METHODOLOGY AND APPROACH ............................................... 4 ............................ 4
1.4.2 Site Observations and Interview ............................................... 4 ............................ 41.4.4 PCB identification methods ................................................ ............................ 51.4.5 Findings Evaluation ................................................ ............................ 5
R 1.5 REPORT FORMAT ............ ............................ 6
*CHAPTER 2 ..... ...............7
* . POLICY, LEGAL AND INSTITUTIONAL FRAMEWORK ........... ........................... 7
I 2.1 TANZANIAN REQUIREMENTS ........... ............................ 72.1.1 The Environmental Management Act, 2004 ....................................... 7
2.1.1.1 Environmnental audit review .......................... 8..... .. | .......... 82.1.2 Water Utilization Act (1974); amended in 1981 .......................................................... . . 82.1.3 The Land Act, 1999 (No 4) ............................................................ 82.1.4 The Village Land Act 1999 (No 5) . ......................................................... . 82.1.5 The Occupation, Health and Safety Act 2003 ......................................................... | . 8I 2.1.6 The Energy and Water Utilities authority Act 2001 (Act No. 11) *--- ........................... 92.1.7 The Industrial and Consumer Chemicals (Management and Control) Act, 2003 | ...... - - .-.-.-... 92.1.8 Electricity Ordinance 1957 [Cap. 131- Supp. 57] ........................................ 9......................................92.1.9 Petroleum (conservation) Act, 1981 (Act No. 18- 1981) ........................................ 9 ........................... 92.1.10 National Environmental Policy (NEP 1997) ........................................ 9...................................... 92.1.11 Sectoral Policies ........................................ 9........................... ........... 9
2.1.11.1 National Energy Policy (2003) ........... ............................... 92.1.11.2 National Water Policy (2002) ............................................. 0............................. ........... 102.1.11.3 The National Land Policy (1996) ............................................. 0............................ ........... 102.1.1 1.4 National Human Settlement Development Policy (2000) .......................................................................... I 02.1.11.5 Sustainable Industrial Development Policy- SIDP (1996 -2020) ............................................................. 102.1.11.7 Other Relevant Policies ............................................. t........................................ 1
2.2 INTERNATIONAL AGREEMENTS ON ENVIRONMENT .................................. 112.3 THE WORLD BANK REQUIREMENT ................................................. 1.......................... ......... 1
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and Distribution System3.7 FACTORY ZONE II 33/1 1KV SUBSTATION ................................................................................................ 1. 21I 3.7.1 Auditfindings and the required remedial actions: Factory Zone 11 Substation .223.8 FACTORY ZONE III 132/33/1 IKV SUBSTATION ....................................... 22
3.8.1 Auditfindings and the required remedial actions: Factory Zone III Substation .. 233.9 FACTORY ZONE 1 33/1 1KV SUBSTATION .............................................................. .......... 24
3.9.1 Auditfindings and the required remedial actions: Factory Zone I Substation .243.10 KURASINI 33/1 1 KV SUBSTATION . . ........................ ........ 25
3.10.1 Auditfindings and the required remedial actions: Factory Zone 11 Substation .26* 3.11 NJIRO 220/132/33KV SUBSTATION ......................................................... .......... 27
3.11.1 Auditfindings and the required remedial actions: Njiro Substation . .2733.12 THEMI 33/11 KV SUBSTATION ............................. 8............................ .......... 28
3.12.1 Audit ndings and the required remedial actions: Themi Substation . .293.13 KILTEx 33/ I1KV SUBSTATION ................................ 9............................ .......... 29
3.13.1 Auditfindings and the required remedial actions: Kiltex Substation . .303.14 MOUNT MERU 33/11 KV SUBSTATION ................................ 0............................ .......... 30I 3.14.1 Auditfindings and the required remedial actions: Mount Meru Substation. . 313.15 UNGA LIMITED 66/33/1 IKV SUBSTATION (POWER STATION) .... ...... ........................... 32
3.15.1 Auditfindings and the required remedial actions: Unga Limited Substation . .323.16 KIYUNGI 132/66/33KVSUBSTATION. ............................ ...... 33
3.16. i Auditfindings and the required remedial actions: Kiyungi Substation . . 343.17 BOMA MBUZI 33/11 KV SUBSTATION. ............................ 35
3. 7.1 Auditfindings and the required remedial actions: Boma Mbuzi Substation .353.18 TRADE SCHOOL 33/11 KV SUBSTATION ............................ ..... ..... 36
3.18.1 Auditfindings and the required remedial actions: Trade School Substation .363.19 CHALINZE 132/33KV SUBSTATION...................................................................................37
3.19. 1 Auditfindings and the required remedial actions: Chalinze Substation .373.20 PUBLIC CONCERNS (SUBSTATION) .3.............................................. ............................ 383.21 PRIORITISED AUDIT FINDINGS AND RECOMMENDATIONS ............................................ ............................. 38
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Chapter 1
I Introduction
1.0 Background* The demand for electric power in Tanzania has been on increase due to the g owing economic
and social situation in the country. Good governance, good policies, investor ' confidence andeconomic recovery programmes have stimulated the economic growth and s cial activities. In1986, Tanzania introduced and embarked on Economic Recovery Progr e (ERP) whichconcentrated on reforming agriculture, opening up the private sectors, d regulating foodmarketing, liberalized trade and lifting foreign exchange controls. The ERP wa later replaced bya three year plan called the Economic and Social Action Plan (ESAP) backed b a series of IMFinspired structural adjustment programmes. These programmes have resulted nto urbanizationand the growth in mining'sector. The implication of these programmes to TA 1ESCO has beenthe increase of a number of customers in major cities in need of electri ity connections.However, most of the infrastructure have reached their capacities and cannot all w connection ofnew customers unless they are rehabilitated. The most affected are the sub ations and theirvoltage carriage lines located in Dar es Salaam, Arusha and Moshi town centres
Further more, Tanzania's economy still faces considerable difficulties and many necessaryreforms remain to be implemented. The industrial sector being in the process o recovery, sufferfrom frequent power outages and deterioration of power quality (under volta e) caused by theageing infrastructures in spite of the rectification efforts taken so far by T NESCO and theGovernment of Tanzania. This system overload experienced in many substation and distributionnetwork needs urgent improvement in terms of new investment in distribu on systems andI development of new sources of electricity if TANESCO is to continue to se ve its customerswith quality power and connect new customers.
l In Tanzania, only about 11% of the population (34million)' enjoys the elec ricity. The totalnumber of customers connected by the end of June 2005 was 570,665, m inly residential,industrial and commerce.2 The average growth of the customer base since 200 was between 6-I 9%. In terms of generation, the total available installed capacity is 890MW. Th sources includeTANESCO (590MW), SONGAS (200MW), and the Independent Power Tanza ia Limited-IPTL(IOOMW). TANESCa also imports power from Uganda for Kagera region and from Zambia forI Tunduma town, Sumbawanga and Mbozi districts. The total generation for t e month of July2005 reached 307,187,363 kWh (SONGAS contributing about 31%, IPTL 180/ and TANESCOcontributing about 51%)3.
TANESCO has a number of substations scattered all over the country. Some s bstations are forthe stepping-up from e.g. llkV to 220kV using 11/33/66/132/220kV convers on transformers.These are mainly used at generating source to prepare the generated power ready for
' 2002 census2 source TANESCO3 Source TANESCO generation report for the month of July 2005 and Verbal communica ion with DirectorThermal Generation, August 2005 _-
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transmission purposes. There are also step-down substations which reduce the transmissionvoltage into distribution voltage, say from 220kV to 11kV. This is done thr( ugh a substationhaving 220/132/33/1 lkV conversion transforners. In this audit study the subst ations are of stepdown transformation ranging from 220/132/33kV to 33/1 IkV.
In 2002, TANESCO in collaboration with Japanese International Cooperatio Agency (JICA)I prepared a Master Plan to improve the power systems in major towns of Dar es Salaam,Kilimanjaro and Arusha. The current power demands for these regions are on average 240MW,30MW and 38MW respectively.4 The Master Plan outlines areas of priority and investmentsI needed to solve the frequent power outages experienced in major cities. F her, TANESCOundertook several studies including Relief Project 2 done by NetGroup Solu ons (Pty) Ltd ofSouth Africa in 2004 and feasibility study on the Reinforcement and Upgrade f Dar es Salaam,I Kilimanjaro and Arusha Transmission and Distribution system done by Lahm yer Internationalof Germany in September 2004. All these studies identified areas of pri *ty and type ofinvestment needed by TANESCO to improve the transmission and distribution ystems.
Based on the above-mentioned studies, TANESCO consulted various fi lanciers to seekassistance in implementing different components of the Master Plan. The Wo d Bank (WB) asone of the contacted financiers showed interest in supporting TANESCO in th it respect. HenceTANESCO and the International Development Association (IDA)/World B; nk are currentlypreparing a distribution rehabilitation and transmission reinforcement compon Nnt as part of theSongo Songo Gas Development and Power Generation Project (Credit 3569- A). The amountunder discussion with the WB is about US$ 57 million.
1.1 The ProjectThe proposed project to be owned by TANESCO and co-financed by the W rd Bank and theI fl Nordic Development Fund (NDF) at an estimated cost of 70m USD consists of wo components:The first component involves the rehabilitation of 18 existing substation at Oyster Bay,Mikocheni, Msasani, Factory Zone I, Factory Zone II, City Centre, Factory 2 one III, Sokoine,I Kurasini and Ilala in Dar es Salaam. Others are Mount Meru, Unga Ltd., Kilte Ltd, Themi andNjiro in Arusha and Boma-Mbuzi, Trade School and Kiyungi in Kilimanjaro region. These 18substations out of all substations in Dar es Salaam, Arusha and Kilimanjaro h ve been selectedfor the rehabilitation because they are located in the areas with fast growing p wer demand andthe systems have reached the capacity limit hence they are overloaded. Furth r there will be arepair and upgrade of the 11/33 kV distribution systems. The expected life cyclc of the substation
* is about 30 years though it may continue to provide service after that per od is over. Thisrehabilitation of Distribution Facilities involves:
* Supply and installation of 22 additional 15MVA, 33/1lkV transform rs to relieve theI overload in the existing substations (i.e. replacing low capacity transfor ners e.g. 5MVAwith medium capacity of 15MVA transformers)
* Supply and installation of about 33, 33/llkV circuit breakers and 24 IlkV circuitbreakers with associated switchboards
* Supply and installation of 50MVA 132/33kV transformer with a circuit breaker atl Kiyungi, Njiro, and Kurasini Substations
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* Supply of materials and equipment for repair/upgrading of the distribu on systems whichmake a provision for the following: reconductoring, protection syste s, auto-reclosersand auto load break switches, SCADA, section analysers, boosters, lig itening protection,distribution transformers, new 33/1 1kV lines and statistical metering
Upgrading of substations means replacement of power transformers by a h gher rated powerI transformer and its associated breakers. This will involve mainly upgrading of the foundations toa higher bearing capacity, which may mean also power outages of several day or weeks in someplaces if temporary measures of using mobile substations are not opted.
The second component involves the construction of new 132kV transmissi n lines and new132/33kV substations as follows:
* 132kV T/L Ubungo 220/132kV S/S to Oyster Bay 33/11kV S/S (t be upgraded to132/33kV S/S). The line will pass through Samu-Nujoma Road o the I ft hand side up toMwenge then follows new Bagamoyo Road on the right hand side up t Oyster Bay S/S
* 132kV T/L from Ubungo S/S to Factory Zone III (via Mandela roa to Kurasini S/S,Mbagala S/S and Factory Zone II Gongo la Mboto)
* 132kV line from Factory Zone II -Gongo la Mboto 33/llkV S/S to proposed new132/33kV Kinyerezi S/S to be located at Kinyerezi TANESCO plot
* 132kV T/L from Moshi (Kiyungi S/S) to Arusha (Njiro S/S) and res ective upgrade ofI both substations and with new 132/33kV substation near Kilimar aro IntemationalAirport (KIA)
l 1.1.1 Project ObjectivesThe project will achieve the following objectives:
* Reducing the duration and frequency of power interruptions* Improving voltage conditions at consumers' premises* Reducing the power system lossesl Improvement in marketing by facilitating the possibilities of connectin more customers* Improvement of TANESCO image to the public (less complains from c stomers)* Attraction of more revenue for the companyU * The project will contribute to the effort by the Tanzanian Governmen of improving the
livelihood of ordinary Tanzanians through the National Strategy fo the Growth andReduction of Poverty in Tanzania (MKUKUTA)
Component 1 of this project requires a comprehensive Environmental Audit Assessment (EAA)and component 2 requires a comprehensive Environmental Impact Assessme nt (EIA and SIA)I and Resettlement Action Plan (RAP). Therefore, this report presents the En ironmental AuditAssessment findings for component 1 above (i.e. 18 substations in Dar es Sa aam, Arusha andKilimanjaro and one additional substation at Chalinze in Coast Region).
World Bank requires that all investments comply with the World Bank Safel uard Policies andEnvironmental Guidelines as presented in the Pollution Prevention and Aba ement Handbook(1998) and IFC Environmental Guidelines. It is also a Tanzanian requiremer t that all projectsshould undertake the Environmental Assessment before the implementatio . The Tanzanian
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Environmental Management Act (2004) section 81(1-4) stipulates that it is the obligation of theproject proponent to undertake environmental impact assessment study of the pi Dject.
Hence, for this study the following major guidelines and policies will be appliel: Electric PowerTransmission and Distribution guidelines (IFC), Occupational Health & S fety (IFC), andNatural Habitat (OP 4.04) because of potential oil pollution. Additionally, nat onal requirementas reflected in various Tanzania's sectoral policies, the National Environrn nt ManagementCouncil (NEMC) Environmental Impact Assessment Guidelines (2002 pdate) and theEnvironmental Management Act (2004).
1.2 The Purpose of the Environmental Audit AssessmentThe purposes of the Environmental Audit Assessment are:I * To identify present inadequacies in environmental management, and oc upational health
and safety issues in the facilities to be rehabilitated. Of particular intere st are the presentpollution if any and its potential clean-up costs.I - * To determine the need for remedial actions necessary to bring the subj ct facilities intocompliance with World Bank Safeguard Policies and
* To recommend actions to be taken to improve and strength n TANESCO'senvironmental, health and safety management
1.3 Scope of WorkThe Environmental Audit Assessment focused only on the 18 existing substatio s earmarked forrehabilitation in Dar es Salaam, Arusha and Kilimanjaro as outlined above pl s one additionalsubstation at Chalinze in Coast Region. The Audit took place in November and December 2004.
1.4 Methodology and Approachl To accomplish the audit assessment the following approach was applied:
1.4.1 Reviewing records and relevant documentsI Reviewing all available relevant in house documents including the following: the Master PlanStudy on the Power Sector for major towns in the United Republic of Tanza ia; prepared byElectric Power Development Co. Ltd., Japan, September 2002, Feasibility tudy Report onI Reinforcement and Upgrade of Dar es Salaam, Kilimanjaro and Arusha T ransmission andDistribution System, Prepared by Lahmeyer International October 2004 and various sectoralpolicies. We also reviewed the World Bank, (IFC) Pollution Prevention and AbatementI Handbook, environmental and occupational health and safety guidelines and standards. Othersinclude EMA (2004), 2002 environmental guidelines by NEMC and water stan ards. Basing onthe selected criteria to be audited a checklist was then prepared to assess the ondition of thesubstations and facilities.
I 1.4.2 Site Observations and InterviewAll 18 substations in Dar es Salaam, Kilimanjaro and Arusha were visited for a sessment and anadditional one at Chalinze. Interviews and brief meetings with relevant staff an residents wereconducted at Ilala, FZ III, Kiyungi, Unga Limited and Njiro Substations. How ver, majority ofthese substations are remotely controlled from main substations like Ilala, Ubungo, Njiro,
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Kiyungi and Factory Zone III. During the visit we conducted visual insp ctions and crosschecked the critical issues using the prepared checklist. The checklist identifi s issue as per thefollowing criteria as deduced from the guidelines mentioned above.
l General environmental management;* Waste management practices;* Hazardous materials management;I * Groundwater and soil contamination control;* Occupational health and safety management; and* Noise management (Noise level measurements were taken in some sub tations to get an
overview of the noise levels in the substations)
1.4.3 Use of secondary dataApart from reviewing the available records, this assessment used data and lab ratory test resultsconducted in the same substations for identifying polychlorinated bip enyls (PCB) intransforners and switchgears however, for different purposes. These assessm nts are: SituationAsses-sment and Environmental Audit, Power Sector Restructuring Project- Fin I Report Version2.0 prepared by Stone & Webster Consultants, May 2004 and Inventory of Ele trical EquipmentSuspected to Contain Polychlorinated Biphenyls (PCBs) prepared by the Vice residents OfficeJune 2004.
l 1.4.4 PCB identification methodsThere are several practical methods in use to deternine if the equipment (e.g. tr sforner, switchI gear or capacitor) contains PCBs. The first method is the elimination method. I i this method wehave assumed the cut off year to be 1980. Thus by checking manufacturers' re ords (nameplate)all transforners manufactured before 1980 and those having no information a -e assumed to beI PCB suspects while all transformers made after 1980 and have full info ation about thedielectric fluid used (not listed in PCBs common names) are assumed to be PCB free. Afterelimination, further tests follow to ascertain whether the assumption is true or not. The methodsI include density test, chlorine frame test, dexsil test kits and laboratory testing (gas ch omatography withelectron capture then comparing results against standard chromatograms for known arochlors). In thisassessment all methods mentioned above were applied except the chlorine frame test.
1.4.5 Findings EvaluationUsing field observations, site screening tests, laboratory analysis, checklist d professionaljudgment the audit findings were evaluated and prioritized as of high, mediu or low concem.For instance, if transformer was found to contain less than 50ppm it was classi ied as PCB free.This is the threshold level in most countries required by the law. If the equipm nt has 50ppm orabove but below 500ppm, the equipment is classified as contaminated thus ne d to be properlylabeled and controlled though it can be retained in service until the end of useful life. Hencethere is low to medium concem about this group. If equipment is foun to have PCBsconcentration above 500ppm this is classified as pure PCB and this is of very high concem. If theconcem is rated high it means a call for immediate attention or action.
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1.5 Report FormatThis environmental audit report comprises of five chapters. Chapter one provid e the introductionof the project and methodology for conducting the audit. Chapter two provides he environmentalaudit and legal framework and chapter three provides baseline information and the Auditfindings. It also provides the recommended remedial action required to bring the facilities intocompliance with minimum WB requirement as stipulated in the guidelin es. Chapter four1 provides the environmental management plan and monitoring. Chapter five provides aconclusion and recommendations in a prioritised list of actions. The report has an executivesummary, substation location maps and appendices.
The audit findings are the actual observed conditions of the facilities overa l environmentalperformance with respect to the guidelines checklist. The findings de cribe the mainenvironmental management practice weaknesses. When responses fro n the facility'smanagement are available, they have been provided.
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I Chapter 2
Policy, Legal and Institutional Framework
Environmental management has become a global challenge and Impact Assess ent is a requisitefor every major project at local and international level. Financiers, govemmel ts, environmentalagencies and the public are demanding environmental responsibility of every action taken bycorporate. This is due to the fact that any development activity has the p tential to impactnegatively or positively to the environment and the society is the one, which benefit or looses.
l Therefore any development must be sustainable so as to provide goods and ervices for manyyears without compromising the ability of future generations to survive.
l One of the useful tools in ensuring that the environment is given a due c nsideration is theEnvironmental Audit and Assessment (EAA). EAA provides an opportunity o assess past andpresent actions against standard believed to be the best practice in order to kn w deficiencies inthe practices thus initiate corrective actions to remedy or improve t se environmentalperformance.
l This chapter reviews policies, legal, and guidelines, which guide actions to wh t is believed to beenvironmental management best practices. In order for the project to be accept ible it has to fulfilthe Tanzanian policies and laws and at the same time must comply with the World BankI requirements. Hence, this chapter has categorized these requirements as Tanza rian, InternationalAgreements (of which Tanzania is a signatory) and the World Bank.
2.1 Tanzanian requirements
2.1.1 The Environmental Management Act, 2004This Act provides for legal and institutional framework for sustainabl management ofenvironment; outlines principles for management, impact and risk assessmen s, prevention andcontrol of pollution, waste management, environrnental quality standards, p iblic participation1 and enforcement; it provides basis for implementation of economic and fi iancial incentivesdesigned to influence behaviour to ensure sustainable use of natural resources and protection ofenvironment; it provides for implementation of the National Enviromnental P licy and it repeals-I the National Environmental Management Act, 1983 and provides for continued existence of theNational Environment Management Council (NEMC).
l The proposed project needs to recognize the Act in the sense that environmen al management isa duty and that it is the right of every person living in Tanzania to live in clea r, safe and healthyenvironment. Under the Act, environmental liability has been imposed to m magers of bodiesI corporate. If the corporate commits an environmental offence, the man ger is liable forprosecution and faces fine or impnsonment.
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2.1.1.1 Environmental audit reviewThe prepared environmnental audit report shall be submitted to the Council MC) for reviewby the Multi-Sectoral Technical Review Committee (TRC) for the purpose o establishing theaccuracy and coverage of key issues and providing appropriate recommendat ons for remedialmeasures.
l 2.1.2 Water Utilization Act (1974); amended in 1981The Act establishes a central Water Board with the authority to regulate th use of water, toI control water pollution, and formulating standards for effluents and stream q ality. The WaterBoard grants the discharge consents. The 1981 amendments include Standa ds for ReceivingWaters, based on their classification (i.e. Category 1, 2 or3). The Act provi es standards for
l Temperature, pH, organic substances and inorganic substances, oil and grease, tc. The standardallows the maximum limit of lOppm of any discharges of oil and grease to rece ving waters. Anydischarge of oil and grease in excess of 1Oppm must be treated before eing discharged.Therefore, -any discharges from the planned or operating facility must abide by I hese limits.
2.1.3 The Land Act, 1999 (No 4)One of the fundamental principles of this Act is to ensure that land is used pro uctively and thatany such use complies with the principles of sustainable development. The Act also stipulatesI1 procedures of acquiring land from the rightful owners and the required compen ations. However,this component of the project is expected to utilize the existing land alre dy occupied byTANESCO. Nevertheless, if need to acquire more land for the upgrading of ubstations arises,then all procedures of acquiring land as stipulated in this Act must be followed.
Further, the proponent should know that after the useful life of the Substatio is over the landshould be left in a state where others can use it. Hence, the projec should do thedecommissioning of the project when the project activities come to an end.
2.1.4 The Village Land Act 1999 (No 5)In case the concerned land is in rural areas, the law to be used shall be the vil age Land Act of1999 known as land Act number 5. This Act provide for the management and dministration ofland in village and related matters.
2.1.5 The Occupation, Health and Safety Act 2003The Act repeals the Factories Ordinance 1950. It makes provisions for the s fety, health andwelfare of persons at work in factories and other places of work. It also provi es protection ofpeople other than persons at work against hazards to health and safety arin ing out of or inI connection with the activity. Therefore, health and safety is must for the emp oyer, employeesand people around the facilities.
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2.1.6 The Energy and Water Utilities authority Act 2001 (Act No. 11)The Act establishes a Regulatory Authority in relation to energy and wate utilities and toprovide for its operation in place of former authorities and for related matter . Recognition of
l this Regulatory Authority is important for this project.
1 2.1.7 The Industrial and Consumer Chemicals (Management and Control Act, 2003This Act provides for the management and control of the production, importati n, transportation,storage, dealing and disposal of chemicals. The activities and the work sites of the proposedI project may produce or store forbidden chemicals particularly PCBs norm lly found in oldtransformers and switch gears. Hence appropriate management of these su stances will be
l required.
2.1.8 Electricity Ordinance 1957 [Cap. 131- Supp. 571This is an-ordinance that facilitates and regulates the generation, transmissio , transformnation,distribution, supply and use of electric energy for lighting and other purposes. ince this project3 is about the electricity distribution, then this ordinance will be applicable in some issues.
1 2.1.9 Petroleum (conservation) Act, 1981 (Act No. 18 - 1981)This Act provides for regulation of the impact, transport, storage, distribution, sale and use ofpetroleum products and connected matter. Substations have oil in transformers and switch gears
l which require proper management and handling.
l 2.1.10 National Environmental Policy (NEP 1997)The National Environmental Policy provides the framework for making fun amental changesthat are needed to bring environmental considerations into the mainstream of de cision-making. ItI also seeks to provide policy guidelines, plans and guidance to the determi ation of priorityactions, and provides for monitoring and regular review of policies, plans and p ogrammes.
3 The policy among other environmental issues, it insists on prevention and cont al of land, water,vegetation and air degradation, which constitute our life support systems. It also requiresprotection of biological diversity of unique ecosystem.
2.1.11 Sectoral PoliciesThe following sectoral policies recognize the importance of environment protection andhighlight needs and the obligation of any project proponent (developer) to saf -guard it so as it
l | continues to support our life systems. The policies include:
2.1.11.1 National Energy Policy (2003)The energy policy of February 2003 insists on the need to consider environm nt in its totality.Issues such as energy production (construction of electricity facilities, the r operation and
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maintenance), procurement, distribution systems, and utilization should be done in anenvironmentally sound manner.
2.1.11.2 National Water Policy (2002)The policy insists on the integrated water resources management involving ll stakeholders. Itfurther emphasises that water resources shall be conserved and water po lution should beavoided. The relevancy of this policy to this audit study is to remind the pro ect proponent theneed to avoid any kind of oil spills, wastes of harmful substances or any oth r substances thatmay cause water pollution of the source or water body of any kin during projectimplementation, operation and decommission.
2.1.11.3 The National Land Policy (1996)I The policy developed with the main aim of ensuring wise use of land, it guid s land allocation,resolve conflicts and prevent degradation. The policy gives guiding principl s and mandate tolocal authority on issues related to environmental management. The relevanc of this policy tothe project is about land tenure and right of occupancy. Further the policy ives guidance onprotecting sensitive areas by not allocating such areas for social or economic d velopment.
l 2.1.11.4 National Human Settlement Development Policy (2000)The policy is under Ministry of Land and Human Settlements Development an it emphasizes onthe integration of all human activity processes - residence, work, educati n, health, cultureleisure and the physical structures that support the human settlement. Hence A ith good intentionof the government in facilitating adequate delivery of shelter and improvin development ofsustainable human settlement in the country, the supply of reliable electricity i these settlementsis vital in ensuring the quality of life.
l 2.1.11.5 Sustainable Industrial Development Policy - SIDP (1996 - 2 20)SIDP policy, which was developed by the Ministry of Industry and Trade, int nds to promote anenvironmentally friendly and ecologically sustainable industrial sector in Ta zania. The policyinsisted in the following, which are relevant for this project:
* Environmental Impact Assessment (ELA) and appropriate mitigat on measures areenforced.I * Promotion of Investment, which contain anti pollution programs.
* The government will promote the continuous application of integra ed environmentalstrategy to industrial process, products and services. This strat gy will includeI propagating efficient use of raw materials and energy-, elimnination of oxic or dangerousmaterials, as well as reduction of emissions and wastes at resources.
* The government will forge deliberate and mandatory devices t reactivate legalmechanisms to enable involved institutions to be more effecti e in matters ofenvironmental management.
1 2.1.11.6 Wildlife Policy of Tanzania (1998);The Wildlife Policy of Tanzania (1998) developed by the Ministry of Natu al Resources andTourism, provides a background on the country's wildlife resources and p tential, and rolesvarious institutions and stakeholders involved in wildlife management. Rel vant to this audit
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study is the obligation to protect the biodiversity. Of particular interest s conserving theendangered and threatened species of flora and fauna and their habitats.
2.1.11.7 Other Relevant PoliciesThere are other relevant policies to this study, which are worth mentioning. Th se include HealthPolicy particularly on the issues of occupational health; and Construction Indu try Policy (2003).3 All these policies emphasize the importance of project proponent to consider 11 aspects rangingfrom the welfare of the workers to other people who may be affected negative y or positively bythe project. They are also insisting on the best practice on environmental n anagement. Earlyconsideration of all aspect will make the investment to be sustainable.
2.2 International agreements on environmentl Tanzania has also committed herself to a number of international agreemen s on environment
and development. The relevant international agreements to this environmental tudit include:* Convention on Biological Diversity (CBD), adopted in May 1992. The aim of this
* convention was on developing national strategies for the conservation and sustainable use ofbiological diversity
* The Climate Change Convention adopted in June 1992 and ratified in March 1996. Themajor aim of this convention is to combat the global warming by reducing emission of greenhouse gases
* Convention concerning Protection of Workers against Occupational Haza s in the WorkingEnvironment due to Air pollution, Noise and Vibration, adopted in 197 . The aim of thisconvention is to ensure the safe working environment for the workers
+ Basel Convention on Trans-boundary Movements of Hazardous Wastes and environmentallysound management of hazardous wastes (April 1993). The conven on provides theguidelines on hazardous waste management.
* * Stockholm convention on Persistent Organic Pollutants (POPs). The conv ntion calls for allcountries to properly manage the pollutants such as Polychlorinated bip enyls (PCBs) andadvises restrictions on the marketing, use and disposal of PCBs
2.3 The World Bank requirementThe World Bank, through the Intemational Development Agency (IDA) and the IFC hasestablished Safeguard Policies and environmental guidelines of which a lender needs to complydepending on the nature of the project. For this Environmental Audit Assessr ent the following
l policies and guidelines may apply.
l 2.3.1 WB Safeguard Policies
OP 4.01: Environmental Assessment: Requires an Environmental Impact Assessment for allprojects to be funded by the World Bank Group to ensure that they are envi onmentally soundand sustainable.Applicability of the policy to this projectComponent one of the projects has to do with rehabilitation of the existing facilities which inmost cases will be confined in the existing sites. These existing sites require th audit assessment
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while for the new substations or construction of new transmission lines (co ponent 2 of thisproject) require the Environmental Impact Assessment.
OP 4.04: Natural Habitat: Aims to promote and support natural habi at conservation,protection, maintenance, and improved land use. It insist on precautionary ap roach to naturalresource management to ensure opportunities for environmentally sustainable d velopmentApplicability of thle policy to tlhis projectThis policy is applicable in the sense that it is required to control oil pollution n land (soil) andwater and any behaviour that will affect natural habitat or degrade the land which can be usedfor other purposes
OP4.12: Involuntary Resettlement: Aims to minimize the involuntary resett ement whenever| possible. Resettlement Action Plan (RAP) is needed to reduce impacts to t ose who will be
displaced by the project.
Applicability of the policy to this projectl It is anticipated that rehabilitation of the substations will not need extra land. Vowever, in case
substation designs change and extra spaces are required, procedures for acqu ring land will befollowed including the preparation of Resettlement Action Plan that will be sub itted to the localauthority and the WB.
OPN 11.03: Cultural Property: requirement to protect and conserve cultural si esI Applicability of the policy to this projectFor the sites to be rehabilitated, no cultural properties are expected to exist n the site as therehabilitation work will be on the already disturbed land sites. However, it sh 11 be consideredin case of new Substations and new transmission lines.
1 2.3.2 Pollution prevention and Abatement Handbook Guidelines
The purpose of the guidelines among other things is to identify environmental, health and safetyproblems and recommend cost-effective measures that could improve the envi onmental, healthand safety performance to meet the WB standards. The guidelines that have b en considered inpreparing the Environmental Audit Assessment checklist (Appendix 1) include he following:
I 1. Electric Power: Transmission and Distribution2. Polychlorinated Biphenyls (PCBs)3. Occupational Health and Safety Guidelines4. Environmental Monitoring and
5. General Environmental guidelines
These guidelines in a nutshell:o Require having in place acceptable working environment and it is the bligation of the
l employer to provide that acceptable working environmnent, provide all n cessary personalprotective gears (PP) to employees, first aid kit, and essential welfare faci ities and enforcethe use of PP when necessary
o Require that all discharges from the facility to be treated to acceptable Ii nit levels beforebeing release to water bodies
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o Require to have equipment, a system or procedures in place to control s pillages that maycontaminate soil, underground and surface water
o Require to have a plan or a system in place to deal with emergence cases Of fire, spillage oraccidents in place of work or facility to minimize the number of casualties, damage costs andenvironmental disaster
o Require to have a knowledgeable workforce to reduce health and safety ri ks of the workers3 and safety of equipment as well as improving the working efficiency
o Require to have habit of keeping records as a proof of compliance, for easy of reference, andl in reviewing the performance when need arises
o Require a systematic phasing out PCBs and Chlorofluorocarbon co pounds (CFCs)containing equipment and in ensuring appropriate storage and disposal
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Chapter 3
I Site Baseline Information, Audit Findings and the Remedial Act ons
The substations included in this Environmental audit Assessment project are lo ated as follows:5
Kinondoni Kinondoni Ilala Region Temeke Arusha Ki imanjaroNorth South Region Region R gionMikocheni Ilala FZ I Njiro Ki YMsasani City Centre Kurasini Themi B ma MbuziOyster Bay Sokoine Kiltex La wati*
FZ II Mt. Meru Tr de School
l__________ _________ FZ III Unga Ltd _
* Although Lawati Substation was in the WB terms of Reference, it was left out in this study after discussion withKilimanjaro Senior Engineer that the concerns are on Trade School substation and not Law iti Substation. HenceTrade school substation replaces the Lawati substation.
'It was also recommended that Chalinze Substation be included in the project though it is outsH e the abovementioned regions.
This Environmental Audit was conducted between 9th November 2004 and 10 December 2004.I The audit was based on criteria stipulated below:* General environmental management;* Waste management practices;I * Hazardous materials management;* Groundwater and soil contamination control;* Occupational health and safety management; and* Noise management (Noise level measurements were taken in some su stations to get an
overview of the noise levels in the substations)
* These criteria were translated into a checklist which was used to identify issue of strength to thesubject substation or issues that need corrective actions (weakness) so as to iaeet the minimumrequired standard.
The approach to this audit included the site inspection, equipment and mat .rial identification(PCB content transformers and switch gears), interview of personnel and re idents working inthe substations or living near the substation. Available records or documi ntation were alsoverified.
Substations which have been audited using the criteria above include the foliol ring:
S TANESCO has four operational regions in Dar es Salaam which are Kinondoni North Kinondoni South,Ilala and Temeke all located in Dar es Salaam administrative regionlEnvirvnmwntal Audit Rnpon -Final 14
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iv. Fire fighting equipment is inadequate need to be adequately suppl ed in the requiredproportions (foam, carbon dioxide, powder, etc.) and recharged whe expire
v. The substation site will require an extra land if expansion is needed
3.2 Oyster Bay 33/11kV SubstationThis substation is located in a plot at the junction of Ali Hassan Mwinyi road nd Kawawa roadin Kinondoni district. On the north there is Ali Hassan Mwinyi road and o the west of thesubstation there is Kawawa road. The eastern side is bordered by residential ouses and on thesouth an empty space. This substation is remotely controlled from Ilala and UJlungo substations.The area is dominated by the noise of passing vehicles. The potential environ nental risks comefrom oil, SF6 and CFC gasses, and safety risk mainly from electric shock.
The substation (see photo 2:1-3 in Appendix 2) is currently equipped v ith one 33/llkV,15MVA transformer (1993) with two stand-by transformers of capac ty 5MVA eachI . manufactured in 1963. The substation is overloaded and requires immediate ittention. A 33kVline to Ilala and Mikocheni connects the substation.
The proposal recommends among other things the following rehabilitation: c anging 33kV and11 kV switchboards, circuit breakers, cubicles, installation of two new 33/1 lk V, 15MVA powertransformers.
3.2.1 Audit findings and the required remedial actions: Oyster Bay Subs ationFrom the site investigation and checklist the following issues were identified:1. The substation has transformers and oil circuit breakers of 1963 and 1993. Hence by
elimination method one transformer in the substation has got no PCBs. H wever for the twotransformers of 1963 the laboratory tests showed some traces of Aroclor 254 and Aroclor1260 with concentration 405 ppm and 352ppm respectively. This result c ncludes that theseI two transformers are PCB contaminated. Therefore, appropriate handling is required includingprevention of leakages and restriction on moving them
2. The transformers are oil leaking however they are labelled and restricte from shifting toanother place without the permission of the Vice presidents Office.
3. It has few window type air condition units, which may contain chloroflu rocarbons (CFCs)I particularly R12 refrigerant which is commonly used for repair work in Tar ania. However, nodisposable units were seen at the site.
4. The substation has no oil containment for the installed transformers. Which neans any leakagewill not be recovered and it will go underground.
5. The substation is remotely controlled from Ilala hence only a security guard is on the site. The. outside noise level is averaged at 56dB during the day, which might also b influenced by the
passing vehicles on Ali Hassan and Kawawa Roads.6. The substation is earthed and has protective shields to minimize radiation md magnetic field
effects
Environymntal Audit Report -Final 16
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Reinforcement and Upgrade of Dar es Salaam, Kilimanjaro and A usha Transmissionand Distribution SystemI 7. The substation is fenced and has warning signs to prevent the gel eral public from
electrocutions. However the fencing needs some repairs.
8. The substation needs improvement in the following areas:I i. Repair of security lights, fence, broken slabs and putting danger si ns on the fenceii. Cleanness of the substation (taking out grasses) and supply more g avels
iii. Emergency preparedness, prevention and response plan for the su station needs to be
prepared and rehearsediv. Fire fighting equipment are inadequate need to be adequately s pplied in required
proportions (foam, carbon dioxide, powder)v. Handling of hazardous and non hazardous material need to be imp oved especially in
storage arrangement and prevention of spillage
vi. Waste handling and disposal
| 3.3 Msasani 33/11kV SubstationThis substation (see photo3:1-3 in Appendix 2) is located at Msasani area n the TANESCO
l compound used by Dar es Salaam Rehabilitation Project. Residential houses are located some100 - 200m from the substation.
The substation is currently equipped with one 33/llkV, 15MVA transfo mer (1993). The
substation supplies load within the Oyster Bay and Mikocheni area. No 33kN busbar system isI installed. The substation is of the t-off type connected to Oyster Bay. On the 1 IkV side acontainer type substation was built in 1993 under the Japanese project. No expansion of the
1 kV board is possible.
The proposal is to relief the load from this substation when the new Oyster Bay substation isI constructed. Expansion of this substation is not recommended.
3.3.1 Audit findings and the required remedial actions: Msasani Substati nThe audit found the-following at Msasani substation:
* 1. The sub station has transformers and oil circuit breakers of 1993 hence Iy the eliminationmethod the substation has no transformer with PCBs
2. Small oil leakage was seen on the one of the Oil Circuit Breaker but has been controlled3. The substation has no any equipment which may contain chlorofluorocarbon. (CFCs)4. The substation has no transformer oil containment. However no oil leaks were seen on the
3 transformer
5. The S/S is remotely controlled no operators on the site. The site noise level i averaged at 47dBduring the day
6. The substation is earthed and has protective shields to minimize radiation znd magnetic fieldeffects
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7. The substation is well fenced and has warning signs to prevent the g neral public from
electrocutions8. The substation needs improvement in the following areas:I i. Cleanness (taking out grasses) of the substation particularly outs de and the supply
more gravels is recommendedii. Emergency preparedness, prevention and response plan for the su station needs to be
prepared and rehearsed
iii. Fire fighting equipment are inadequate need to be adequately s pplied in requiredI proportions (foam, carbon dioxide, powder) and regular servicingiv. Handling of hazardous and non hazardous material need to be im roved especially in
storage arrangement and prevention of spillage
I 3.4 Ilala 132/33/1lkV SubstationThis substation (see photo 4:1-3 in Appendix 2) is located at Mchikichii i area behind the
Tanzania Breweries Limited factory. Outside the substation there are some re idential houses in
west and east. On the northern side there is Mchikichini primary school. The substation is
enclosed by a brick wall separating the substation and other activities.
The substation is currently equipped with three 132/33kV, 45MVA transfo mers and three of
l 33/11kV, 15MVA transformers all manufactured in 1987. The 33/llkV tra sformers are fully
overloaded.
l The proposal was to extend two bays with all equipment and accessories t allow the 132kV
second circuit from Ubungo and also to allow extension of 132kV line from LI la to Kurasini.
I3.4.1 Audit findings and the required remedial actions:The audit identified the following issues and provides the remedial action on icle 8.1. The sub station has transformers and oil circuit breakers of 1987. Hence by the elimination
s - method (transformers manufactured after 1980 are assumed to be PCB fre while those madeI before 1980 are assumed to be PCB suspect), the substation has no transfor er or switch gearwith PCBs
2. No oil leakage was observed3. It has few window type air condition units, which may contain chloroflu rocarbons (CFCs)
particularly R12 refrigerant which is commonly used in Tanzania. Howe er, no disposable* units were seen at the site
4. The substation has no oil containment for the installed transformers. No oil eaks were seen onl the site
Reinforcement and Upgrade of Dar es Salaam, Kilimanjaro and Aru ha Transmissionand Distribution System
5. Air condition units maintain workplace air quality and inside the building i here is no noise.The outside noise level is averaged 55dB during the day, which also might be nfluenced by thenearby brewery industry.
l 6. The substation is earthed and has protective shields to minimize radiation alid magnetic fieldeffects
7. The substation is well fenced and has waming signs to prevent the gen ral public fromelectrocutions
8. The substation needs improvement in the following areas:i. Regular training of all personnel in safety & safety procedures, vork procedures,
accident and accident prevention and health risksii. Availing more reference materials of which employees could refer tc or improve their
knowledgeiii. Emergency preparedness, prevention and response plan needs to be prepared and
I rehearsediv. First aid kit need to be furnished with important drugs and necessary equipmentI v. Fire fighting equipment is inadequate and need to be adequately su plied in required
proportions (foam, carbon dioxide, powder) to be located appropria tely. Also theseequipment needs to be checked and serviced regularlyI vi. Handling of hazardous and non hazardous material need to be imprc ved especially instorage arrangement and prevention of spillage
l vii. Waste handling and disposal (required to have a designated areas fo waste collectionand rightful way of disposing them)
I 3.5 City Centre 33/11kV SubstationThis substation (see photo 5 in Appendix 2) is located at Kisutu area neaj by the NationalLibrary and other office buildings. It is enclosed by brick wall on all sides. "he substation isremotely controlled from Ilala and from Ubungo substations
The substation is currently equipped with one 33/11kV, 15MVA transformer 1979) with onestand-by transformer of capacity 15MVA manufactured in 1979. The subst tion was partlydamaged by fire in 2001 and refurbishment of the existing indoor switchgea - and protection
l system is on going.
It is proposed to rebuild the substation as an indoor 33/1 IkV substation with t o new 33/1 1kV,1 5MVA power transformers. The proposal also recommends among other thing changing 33kVand 11 kV indoor switchboards, circuit breakers, various cubicles (transform er, bus coupler,feeder, etc.) and a building to house the above items and protection panel.
3.5.1 Audit findings and the required remedial actions: City Centre Subst tionThe audit found the following:
. v Reinforcement and Upgrade of Dar es Salaam, Kilimanjaro and Arusha Transmissionand Distribution System
* 1. The sub station has transformers and oil circuit breakers of 1979, which nlake substation aPCBs suspect. However, the laboratory results performed in April 2004 did nc t detect any traceof PCB compounds. Hence the substation is PCB free.I 2. Oil leakage seemed to be there and the major cause was the mishan lling during themaintenance
3. The substation is remotely controlled from Ilala substation. Hence no equipm ent was seen thatmay have contained chlorofluorocarbons (CFCs) particularly R12 refri gerant which is
. commonly used in Tanzania.4. The substation has no oil containment thus oil leaks may contamninate undergr und water5. The substation is earthed and has protective shields to minimize radiation alid magnetic fieldI | effects6. The substation is fenced though it needs some repairs7. The substation needs improvement in the following areas:I . i. Repair of security lights
ii. Emergency preparedness, prevention and response plan needs to be prepared andrehearsed
iii. Eliminate features that put safety in danger by repairing or rep acing broken ormissing slabs on cable trenchesI iv. Supply of adequate fire fighting equipment in right proportion s (foam, carbondioxide, powder) and ensure that they are serviced regularly
v. Handling of hazardous and non hazardous material need to be imprc ved especially instorage arrangement and prevention of oil spillage
vi. The substation needs the yard cleanness and appropriate waste han ling and disposalI practicesvii. The toilet used by the security guards and people working on the site need Repairs
3.6 Sokoine 33/llkV SubstationThis substation (see photo 6 in Appendix 2) is located near the National Ins rance CompanyI investment house and the headquarters of Bank of Tanzania (BOT) along the So koine Drive. Thesubstation is enclosed by the brick wall. It is remotely controlled from Ilala.
The substation is currently equipped with one 33/11kV, 15MVA transfo er (1993). Thissubstation is currently heavily loaded. The substation is made up of an outdoo r 33kV part withone incoming line bay and one transformer bay. The incoming feeder is conni cted by a singlecore underground cable, XLPE 300mm2 copper of 300m to the dead end struct re of the line toIlala (ACSR 150mm). The containerized llkV substation built in 1993 cannot be extended byadditional feeders.
It is suggested that due to the entrance limitation, which makes it difficult to ex and, no action tothis substation be undertaken unless the underground cable ring is realized. He ce some load inthe area should be supplied through the additional capacity proposed at City Centre and newRailway substations.
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3.6.1 Audit findings and the required remedial actions: Sokoine Substati nI The audit found the following:1. The substation has a transformer and oil circuit breakers of 1993 hence y the elimination
method the substation is PCB free2. No oil leakage was seen on the transformer or on the breakers3. The substation is an outdoor type and remote controlled substation, henc no equipment is
suspected to contain chlorofluorocarbons (CFCs) used in air-conditioning uni s4. The substation has transformer oil containment thus no leakage will be all wed to go to the
underground water5. The substation is earthed and shield protected to minimize radiation and mag ketic field effects6. The substation is fenced and has warning signs to restrict access thus prevent the general public
from electrocutions or electric shock.7. The substation needs improvement in the following areas:
i. Repair of security lightsii. Emergency preparedness, prevention and response plan needs to be prepared and
rehearsedI iii. Supply of adequate fire fighting equipment in right proportio s (foam, carbondioxide, powder)
iv. The substation needs appropriate waste handling and disposal practi esv. The substation toilet needs repairs to offer a convenient place for t e security guards
and people working on the site to go
3.7 Factory Zone II 33/llkV SubstationThis substation (seen on photo 7 Appendix 2) is located at Gongolamboto in ustrial area. Thesubstation is between Namera textile mills and the proposed Dar es Salaam Ci y slaughter house(abattoir).
The substation is currently equipped with one 33/1 lkV, 5MVA transformer of 1967. The indoor11 kV switchboard is-overloaded and the protection system is in poor condition.
* It is proposed that the substation be rebuilt to the existing site as an indoor 3 /1 1kV substationwith two 33/llkV 15MVA power transformers. The proposal also reconmn nds among other
lI things changing 33kV and 11 kV indoor switchboards, circuit breakers, various cubicles(transformer, bus coupler, feeder, etc.) and a building to house the above iter ns and protectionpanels.
Following the changes of 132kV transmission routes in Dar es Salaam, this ubstation will beupgraded to 132/33kV to allow connection with the line from Mbagala, Fac ory Zone III andKinyerezi substations. In that case extra piece of land will be required.
* Environn=tal Audit Report -Final 21
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3.7.1 Audit findings and the required remedial actions: Factory Zone II S bstationThe audit found the following:1. The substation has a transformer of 1967, which make the substation a PCB uspect. However,
the study by the Vice President's Office in August 2004 concluded the su station has PCBscompounds below 50ppm based on the density detection method as the wei ht of the oil anddensity of the oil were provided by transformer manufacturer. No labora ory analysis wasperformed. Hence the substation is concluded by the study as PCB free.
2. The transformer has traces of oil leaks presumably due to overloading an I oil mishandlingI during maintenance activities3. It has no equipment suspected to contain chlorofluorocarbons (CFCs) particularly R12
refrigerant which is commonly used as air conditioning refrigerant in Tanzani4. The substation transformer has no oil leakage containment, which means lea s will soak into
the soil and then to surface and underground waterI 5. Although it is remotely controlled, there are security guards at site who r quire convenientshade for rain and sun and toilet facility. The substation is located in indus rial area where asubstation noise will not exceed 70dB as shown in measured substation
6. The substation is earthed to minimize radiation and magnetic field effects7. The substation fencing is in very bad condition. It needs repair and posti ng of the dangerI warning signs to restrict access to the substation thus prevent the gen ral public from
electrocutionsl 8. The substation needs improvement in the following areas:
i. Repair of security lights and fencingii. Emergency preparedness, prevention and response plan needs to be prepared andI rehearsed
iii. Eliminate features that put safety in danger by repairing or rep lacing broken orl missing slabs on cable trenches
iv. Drainage system of the substation. It was reported by the secur ty guard that thesubstation is normally flooded whenever there is heavy down pourI v. Adequate fire fighting equipment in right proportions (foam, carbon dioxide, powder)must be supplied and checked regularly
vi. Handling of hazardous and non hazardous material need to be impr ved especially instorage, arrangement and prevention of oil spillage
vii. The substation needs cleanness, extra gravels on the site and .ppropriate wasteI handling and disposal practicesviii. There is need to construct a security guard kiosk (shade) and oilet facility for
convenience of the guards on the site
3.8 Factory Zone III 132/33/llkV SubstationThis substation (seen on photo 8 Appendix 2) is located at Kipawa along Nye ere road close tothe Dar es Salaam Intemational Airport. It is in the vicinity of Nyerere road i cdustrial zone. It
* Environmental Audit Report . Final 22W
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Reinforcement and Upgrade of Dar es Salaam, Kilimanjaro and Ar sha Transmissionand Distribution SystemI receives 132kV from Ubungo main grid centre. The substation has one buil ng which houses
offices, battery room and control room.
l The substation has 132kV, 33kV, and IIKV voltage levels transformation. T e 132kV line bay
from Ubungo has two 132/33, 45MVA transformer (1999) bays. The 33kV part is the outdoor
type with one 33/llkV, ISMVA transformer with several line bays. On the l1kV side a
container type substation was built in 1987 under the Japanese project. No expansion of the
11 kV board is possible.
It is recommended to extend 132kV line bay to accomrnodate the new 132kV I ne from Ilala S/S
to FZ III via Kurasini, Mbagala and Yombo. The bay will contain all nec ssary equipment
(circuit breakers, current transformers, capacitive voltage transformers, arresto s, etc.). Also it is
recommended to add a full 33kV transformer bay, 33/llkV l5MVA t nsformer. Other
I rehabilitation will include major service of the existing transformer.and swi chgears, oil type
33kV circuit breaker shall be replaced and adding two 33kV outgoing feeder ba s.
l3.8.1 Audit findings and the required remedial actions: Factory Zone III ubstation
The audit found the following:1. The substation has transformers and oil circuit breakers of 1987 and 1 99 hence by the
elimination method the substation has no transformer or circuit breaker wit PCB. Hence the
substation is PCB free
2. Oil leakage was seen on CUB - 3 oil circuit breaker
I 3. It has few window type air condition units, which may contain chlorofluo ocarbons (CFCs)
particularly RI 2 which is the common and cheap air conditioning refill refrig rant in Tanzania.
However, no disposable units were seen at the site
4. The substation has no transformer oil containment dikes hence in case of spi age accident soil,
surface and underground water will be contaminated. New installation mu t be contained to
i | prevent oil spills. However, no oil leaks were seen on the transformers
5. Air conditioning units maintain workplace air quality and the noise inside th building is below
the limit. The outside noise level is averaged 50dB during the day, the lev I which has been
influenced by the nearby biscuits factory (20m away) and passing vehicles o the Nyerere road
located 50m away
I 6. The substation is earthed and has protective shields to minimize radiation ad magnetic field
effects
7. The substation is well fenced and has warning signs to restrict access by un uthorized people
thus prevent the general public from electrocutions
8. The substation needs improvement in the following areas:
i. Regular training of all personnel in safety & safety procedures, ork procedures,
Reinforcement and Upgrade of Dar es Salaani, Kilimanjaro and Arus ha Transmissionand Distribution System
I * ii. Availing more reference materials of which employees could refer tc or improve their* knowledge
iii. Emergency preparedness, prevention and response plan needs to be prepared andI rehearsed
iv. First aid kit need to be fumished with important drugs and necessary equipmentv. Fire fighting equipment are inadequate need to be adequately sup lied in required
proportions (foarn, carbon dioxide, powder) and ensure a regular che .ksvi. Handling of hazardous and non hazardous material need to be imprc ved especially inI storage, arrangement and prevention of spillage
vii. Repair of security lights, indoor lights and window air condition inits to improveworking condition of the Substation
viii. The substation needs cleanness especially in removing grass n the yard and_ appropriate waste handling and disposal practices
3.9 Factory Zone I 33/l1kV SubstationFactory Zone I substation is located at Buguruni along the Mandera Express way close to thetraffic lights at junction of Nyerere road and Mandela express way. This substa tion is located inan industrial area. It has two buildings housing the control unit. The substa tion is remotelycontrolled.
The substation is currently equipped with one 33/1 lkV, 15MVA transformer oi 1993. Though itis now disconnected after developing an internal fault. The one in operation (u se) now with the
l same capacity was manufactured in 1969. It is proposed that the substation be rebuilt to theexisting site as an indoor 33/1 lkV substation with two 33/1 IkV l5MVA power ransformers.
| The proposal also recommends the substation to be equipped with 33kV alId 11 kV indoorswitchboards, circuit breakers, various cubicles (transformer, bus coupler, fe eder, etc.) and aI building to house the above items and protection panels.
I 3.9.1 Audit findings and the required remedial actions: Factory Zone I St bstationThe audit found the following:1. The 1969 transformer makes the substation, as a PCB suspect while the on of 1993 is non-
PCB. However the results of laboratory analysis conducted in April 2004 have shown that thetransformer of 1969 has some traces of Aroclor 1260 and Aroclor 1254 P B compounds ofless than lppm. Therefore, the result concludes that the substation is PCB free in spite ofhaving a 1969 transformer.
2. Small oil leakage was seen on one of the transformrer
Reinforcement and Upgrade of Dar es Salaam, Kilimanjaro and A -usha Transmissionand Distribution System
3. The substation building has two window type air condition units, v hich may contain
chlorofluorocarbons (CFCs) particularly R12 refrigerant which is com on and cheap AC
refrigerant in Tanzania. However, no disposable units were seen at the site
l l 4. The substation has no transformer oil containment which means any leak ge goes to the soiland eventually to surface and underground water
5. The substation is remotely controlled hence only a security guard is on the site. The working
conditions need to be improved for the guards by providing security gu rd kiosk and toilet
facility. The noise level is normnal though influenced by the moving vehicl s on Mandela roadI * and foundry workshop adjacent to the substation.6. The substation is earthed shield protected to minimize radiation and magneti field effects7. The substation is fenced and has warning signs to restrict access to the sub tation thus prevent
the general public from electrocutions8. The substation needs improvement in the following areas:
* . i. Repair of security lights and window AC
ii. Emergency preparedness, prevention and response plan needs t be prepared andl rehearsed
iii. Elimination of features that put safety in danger by repairing or r.-placing broken or
missing slabs on cable trenchesI iv. Supply of adequate fire fighting equipment in right proporti ns (foam, carbon
dioxide, powder)v. Handling of hazardous and non hazardous material need to be imp roved especially in
storage, arrangement and prevention of oil spillagevi. The substation needs cleanness and appropriate waste handling ane disposal practicesI vii. Construction of the toilet and security guard kiosk to be used by he security guards
and people working on the site during Repairs and maintenance wc rk
I3.10 Kurasini 33/11kV SubstationKurasini substation (seen in photo 10:1-3 In Appendix 2) is located off Mand ela express way at
Kurasini adjacent to the Scandinavian express warehouse. It is remotely contro led from Ilala andUbungo, substations. It has one small house with indoor controls. This sub tation is basically.located in an area designed for warehouses, therefore only few residential h uses belonging to
TAZARA staff are behind the substation. As this substation is among th se which will be
upgraded to 132/33kV, extra land will be required. This means about 3 ho ses belonging to
TAZARA staff need to be relocated. Land acquisition procedure shall be foll wed so as acquirethe extra piece of land. The Social Impact Assessment and Resettlement olicy Framework(RPF) documents for Dar es Salaam address those issues.
Kurasini substation is currently a 33/1 1kV substation. It is at present e uipped with one
33/1 IkV, 15MVA transforrner of 1979 with two oil circuit breakers 36kV, 6( A, 12.5kA dated
II +Reinforcement and Upgrade of Dar es Salaam, Kilimanjaro and Ar sha Transmissionand Distribution System
1967 of South Wales made. Three 33kV CB were replaced in 2003. he indoor llkVswitchboard and the monitoring and control devices are installed in the buildin .
The proposal is to extend the substation by an outdoor 132kV switchyard con isting of one linebay for connecting the new Ubungo - Kurasini Line, one line bay for conne ting the new line3 ~~Kurasini - Mbagala - Gongolamboto - FZ III, one 132/33kV 50MVA transfo mer bay. Furtherit is proposed to build an indoor 33 and 11lkV substation with one-33/llk1k 15MVA power
* ~~transformers. Other things include improving the 1 1kV cable connection, changing circuit* ~~breakers (with SF6 or Vacuum type), various components in protection and moi iitoring systems.
l l 3.10.1 Audit findings and the required remedial actions: Factory Zone 11 'ubstationThe audit found the following:
| 1. The substation has transformers and oil circuit breakers of 1979 and 196 respectively. Byelimination method the substation is classified as PCB suspect. However, sin e TANESCO has
fl a tendency of doing refilling of new oil to all transformers in substations fror time to time and* that no pure PCB has been found in TANESCO transformers it may be assumed that the
substation is also free from PCB in most cases (i.e. below 50ppm) even tho gh no laboratory3 | tests has been conducted on this substation.2. No oil leakage was observed3. It has no equipment that may contain chlorofluorocarbons (CFCs) particular y R12 refrigerant
which is commonly found in AC and refrigerators in Tanzania4. The substation has no transformer oil containment which means any leaka e goes to the soil
l l and eventually to surface and underground water5. The substation is remotely controlled and the average ambient noise on the s vitchyard is 48dB
during the day. Few residential houses are located about 20-40m from the ubstation and theMandela road is also located some 50rn from the substation
6. The substation is earthed and has protective shields to minimize radiation aid magnetic fieldI effects7. The substation is fenced though needs some repair work to improve the naccessibility by
unauthorized people to prevent them from electrocutions8. The substation needs improvement in the following areas:
i. Repair of security lightsI ii. Emergency preparedness, prevention and response plan needs te be prepared andrehearsed
3 iii. Elimination of features that put safety in danger by repairing or re placing broken ormissing slabs on cable trenches
iv. Supply of adequate fire fighting equipment in right proportio s (foam, carbonba forconnectdioxide, powder) and ensuring the regular checkups
KuEnvironmital Audit Repob l -Final 26
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v. Handling of hazardous and non hazardous material need to be i nproved especiallyin storage, arrangement and prevention of oil spillage
vi. The substation needs cleanness and appropriate waste han ling and disposalI practices
vii. Need for constructing a security guard kiosk and a toilet to be used by the securityguards and people working on the site during Repairs and mainte nance work
3.11 Njiro 220/132/33kV SubstationThis substation (seen on photo 11: 1-2 in Appendix2) is located at Njiro hills in Arusha town. Itreceives energy from Singida through the 220kV transmission line and om Kiyungi andPangani Hydro Systems through the 132kV transmission line. Residential ho ses are located asfar as 150-300m from the substation.
The substation has 220kV, 132kV, and 33kV voltage levels bus bars an 220/132kV and132/33kV transformers. The 220kV connects with the national grid from Sing da and the 132kVconnects to the hydropower stations of the Pangani Hydro Systems through ame and Kiyungisubstations. The substation has two 132/33, 20MVA transformers manufactu ed in 1981 whilethose of 220/132 20MVA were manufactured in 1996. The transforme s are overloadedI especially at peak hours and the oil temperature reaches more than 90 °C. T etransformers areof cooling type ONAN and the extension will convert to ONAF thus increasin the rated load to30MVA each.
The proposal is to exchange the two 132/33kV, 20MVA transformers with tw 132/33, 50MVAtransformers or install additional 132/33kV, 50MVA transformer and relate transformer bayequipment to support the existing two transformers. Also it is proposed to in tall 132kV bay toconnect the new 132kV line from Kiyungi S/S via Kilimanjaro International Airport (KIA). Fordistribution system two additional 33kV line bays are being proposed to fee New Kiltex andnew Njiro B substations.
3.11.1 Audit findings and the required remedial actions: Njiro SubstationThe audit found the following:1. The substation has transformers of 1981 and 1996 and switch gears use SF gas hence by the
elimination method the substation is PCBs free2. Small oil leakage was seen one of 132/33kV transformers3. It has few window type air condition units, which may contain chloroflu rocarbons (CFCs)
particularly R12 refrigerant which is commonly used in Tanzania. Howe er, no disposableunits were seen at the site
4. The substation has oil containment for newly installed transformers (220/ 32) but lacks thecontainment for the old installations (132/33kV transformers)
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5. Air condition units maintain workplace air quality and there is no noise i iside building. Nonoise measurement were taken at this substation, it is assumed that it is no ifferent from othersubstations. Residential houses are located about lOOm - 150m from the s bstation fence andno noise complains have been reported up to date
6. The substation is earthed and has protective shields to minimize radiation and magnetic fieldeffects
7. The substation is well fenced and has warning signs to prevent the g neral public fromelectrocutions
l 8. The substation needs improvement in the following areas:i. Regular training of all personnel in safety & safety procedures, work procedures,
accident and accident prevention and health risksii. Availing more reference materials of which employees could refer o or improve their
knowledgel iii. Emergency preparedness, prevention and response plan needs t be prepared and
rehearsediv. First aid kit need to be furnished with important drugs and necessar y equipmentv. Fire fighting equipment are inadequate need to be adequately s pplied in required
proportions (foam, carbon dioxide, powder)I vi. Handling of hazardous and non hazardous material need to be imp oved especially instorage arrangement and prevention of spillage
* vii. The substation needs appropriate waste handling and disposal pract cesviii. The substation needs to be supplied with one unit portable water (water dispensing
unit)X ix. The substation need to have in place a habit of investigating work -elated injuries, ill
health, diseases and accident and keeping them in record
3.12 Themi 33/11kV SubstationThemi substation (seen on photo 12 Appendix 2) is located at Themi industr al area in Arushatown. The controls are housed in the building and transformers are locat d outdoors. Thesubstation is supplying power to the fast growing residential and industrial area.
I The substation is currently equipped with one 33/1 IkV, 5MVA transformer o 1988. The 33kVsubstation is of outdoor type with two line bays. The I IkV switchboard is of in oor type.
Kl Under the project it is proposed to add a full 33kV transformer bay, 33/1 Ik , 15MVA powertransformers. It is suggested that the upgrade should include rebuilding the ex sting I x 5MVAtransformer bay to a complete transformner bay and replacing existing 5MVA transformer withnew 15MVA transformer. Among other things, it is suggested to change t e whole 11 kVswitchboard and transformer panels.
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3.12.1 Audit findings and the required remedial actions: Themi SubstatioThe audit found the following:1. The substation has transformers and oil circuit breakers of 1988. This me ns by elimination
method the substation can be classified as PCB free substation2. Small oil leakage was observed on one of the circuit breaker3. The substation is remotely controlled from Njiro substation. Hence no equip aent was seen that
may have contained chlorofluorocarbons (CFCs) particularly R12 ref igerant which iscommonly applied in Tanzania.1 4. The substation has no oil containment thus oil leaks may contaminate underg ound water
5. The substation is earthed to minimize radiation and magnetic field effects6. The substation is fenced to restrict access to the substation by unauthorized p ople7. The substation needs remedial actions in the following areas:
i. Repair of security lights, put more danger signsii. Emergency preparedness, prevention and response plan needs to be prepared and
rehearsed
iii. Eliminate features that put safety in danger by repairing or re lacing broken ormissing slabs on cable trenches
iv. Supply of adequate fire fighting equipment in right proportio s (foam, carbonI dioxide, powder) and ensure regular checks to find out whether the work or notv. Handling of hazardous and non hazardous material need to be impr ved especially in
storage arrangement and prevention of oil spillage since there s no transformercontainment
vi. The substation needs yard cleanness and appropriate waste hand ling and disposalI practices
vii. The substation need to have a toilet to be used by the security gaards and peoplel working on the site
3.13 Kiltex 33/11kV SubstationKiltex substation (seen on photo 13:1-2 in Appendix 2) is located on Kilimajar Textile (Kiltex)compound close to Tanzania Breweries Limited Arusha plant. It is in the indust al zone.
The substation is currently equipped with one 33/11 kV, 5MVA transforme of 1966. Thesubstation is connected by one 33kV line from Unga Limited substation. It h old equipmentthat though operational needs modification and replacement.
It is suggested to relieve the substation by either using the existing 33kV fro Unga Limiteddedicated to Kiltex only via 1 kV bypass or build a new I IkV line from Ung Limited to pick3 up existing 11 kV feeders then demolish the substation. Therefore, the new site for the newsubstation (New Kiltex) should be identified. If the final decision is to find the new site for thissubstation, then normal land acquisition procedures shall be followed includi g preparation of
l EIA of the site and Resettlement Action Plan (RAP) if relocation of people will e involved.
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3.13.1 Audit findings and the required remedial actions: Kiltex Substatio
.1 BThe audit found the following:I. The substation has transformers and oil circuit breakers of 1966 hence by cu off point (1980) it3 | is classified as a PCB suspect. However, from the laboratory concentration tests results of the
61 samples taken from different substations, all suspected cases except tw were found to bePCB free6, then in extreme probability the substation may also be PCB fre or having trancesI of less than 50ppm
2. Small oil leakage was observedl 3. No any equipment was found to contain chlorofluorocarbons (CFCs) particularly R12
refrigerant which is still widely used in Tanzania4. The substation has no oil containment for the installed transformer. This me ns any oil spillageI will contaminate the soil and eventually surface and underground water5. The substation is located between the Kiltex and brewery industries. It is r motely controlled
with only a security guard on the site6. The substation is earthed7. The substation fenced but the fence need repair and warning signs to prevent the general publicI | from electrocutions8. The substation needs improvement in the following areas:
l i. Repair of security lights, put more danger signsii. The substation need more gravels
iii. Emergency preparedness, prevention and response plan needs to be prepared andrehearsed
iv. Eliminate features that put safety in danger by repairing or re lacing broken orl missing slabs on cable trenches
v. Supply of adequate fire fighting equipment in right proportio s (foam, carbondioxide, powder)
vi. Handling of hazardous and non hazardous material need to be impr bved especially instorage, arrangement and prevention of oil spillage since there is t transformer oil3 | leakage containment
vii. The substation need to have a security guard shade and a toilet t be used by thesecurity guards and people working on the site
viii. The substation needs cleanness and appropriate waste handling and isposal practices
3.14 Mount Meru 33/lkV SubstationThis substation (seen on photo 14:1-2 in Appendix 2) is located along the Mo hi-Arusha road,I not far from the Novel Tel Mount Meru hotel. It has one building that house batt ries and controlunits. It is remotely controlled from Njiro substation. It drains water into a strear nearby.
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l l The substation is currently equipped with two 33/l1kV, 5MVA transformer s manufactured in1991. The 33/1 IkV transformers were supplied by EB National Industries of Forway. The I IkVswitchboard is of indoor type.I: The proposal is to upgrade the 33kV feeding line Njiro-Mount Meru to a doub e circuit. Hence itwill require rebuilding the existing I x 5MVA transformer bay to a comple e transformer bayand replacing existing 5MVA transformer by a new 1 5MVA transformer. The rehabilitation willalso involve upgrading of Circuit Breakers and protection devices. Otherw se rebuilding thewhole substation to the existing site as an indoor 33/1 1kV substation with one 3/1 1kV, 15MVApower with additional one as the load increases.
I 3.14.1 Audit findings and the required remedial actions: Mount Meru Su stationThe audit found the following:1. The substation has transformers of 1991 and SF6 circuit breakers hence clas ified as PCB. free
substation2. No oil leakage was seen on any equipment3. It has two window type air condition units, which may contain chloroflu rocarbons (CFCs)
particularly R12 refrigerant which is widely used in Tanzania for repair w Drk. However, nodisposable units were seen at the site
4. The substation has oil containment for all installed transformers5. The substation is remotely controlled and only a security guard is availab at the site. The
! substation is quiet except for the noise of passing vehicles6. The substation is earthed and has protective shields to minimize radiation aid magnetic fieldI | effects7. The substation fenced though it needs some repair warning signs to prevent he general publicII |from electrocutions8. The substation needs remedial actions in the following areas:
i. Repair of security lights, put more danger signsii. The substation need more gravels
iii. Emergency preparedness, prevention and response plan needs to be prepared andrehearsed
iv. Improve drainage by cleaning the storm water trenchesv. Supply of adequate fire fighting equipment in right proportions (foam, carbonI dioxide, powder) and ensuring regular checks to be sure that they ¢e in good order
ready for usevi. Handling of hazardous and non hazardous material need to be impr ved especially in
storage, arrangement and prevention of oil spillagevii. The substation need to have a security guard shade and a toilet t be used by the
security guards and people working on the site
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viii. The substation needs yard cleanness and appropriate waste han ling and disposalpractices
1 3.15 Unga Limited 66/33/llkV Substation (Power Station)This substation (seen on photo 15:1-2 in Appendix 2) is located at Unga L mited area in theArusha old power station compound. The substation receives energy from K yungi through theI 66kV transmission line. It supplies energy to the industrial and residential a eas. According tothe consultant the equipment has reached its useful life and upgrading or reha ilitation makes no
l sense.
The substation has 66kV, 33kV and I IkV voltage levels bus bars. After rec iving 66KV fromKiyungi it steps down to 33kV through the 66/33kV transformer. The subs ation is currentlyequipped with two 33/1 1kV, 5MVA transformners erected in 1966. There are ther five off linetransformers laying at the compound.
l It is therefore proposed to rebuild the substation adjacent to the. existing ite as an indoor33/1 IkV substation with one 33/1 lkV 15MVA power transformer with provi ion of adding thesecond one. It is further proposed to add one transforner bay, two 33kV feeder bays andprovision of spare feeders.
3.15.1 Audit findings and the required remedial actions: Unga Limited Su stationThe audit found the following:
l 1. The substation has transformers and oil circuit breakers of 1966 making the substation a PCBsuspect. However the laboratory test conducted for two transformers in Mar -h 2004 by Stoneand Webster did not find any traces of PCB compounds in the samples. This oncludes that theexisting transformer oil has been changed several times and the substation is CB free
2. Oil leakage was seen almost on every transformer and breakers3. No equipment was observed which may contain chlorofluorocarbons (CFCs particularly RI 2
refrigerant comnmonly in AC repair work in Tanzania4. The substation has no oil containment for the installed transformers. This m eans any spillage
will contaminate the soil and eventually surface and ground water5. The control room for the switchboard operators is not convenient for the worl ing staff. In spite
l of having ventilation, the machine hall exposes operators to cold during cold times and lots ofmosquitoes in other times. It has been very difficult to control the insects beca se the hall is toobig. The machine hall needs to be compartmentalized to have sufficient and onvenient roomswhich can be easily controlled temperature-wise and insects-wise.
6. Noise wise the substation is quiet and does not need any ear protection against noise.I 7. The substation is earthed and has protective shields to minimize radiation ar d magnetic fieldeffects
8. The substation fenced but needs repair and warning signs to prevent the ger eral public fromelectrocutions
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9. The substation area has a lot of scraps laying in the machine hall (control ro m) and outside themachine building. Also some old scavenged machines are still fixed in the n achine hall. Thesescraps need to be cleared up and appropriately disposed of
10. The substation needs improvement in the following areas:i. Regular training of all personnel in safety & safety procedures, work procedures,
accident and accident prevention and health risksii. Availing more reference materials of which employees could refer o or improve their
knowledgeiii. Emergency preparedness, prevention and response plan needs t be prepared and
rehearsediv. First aid kit need to be furnished with important drugs and necess equipmentv. Fire fighting equipment are inadequate need to be adequately su plied in required
proportions (foam, carbon dioxide, powder) and ensure a regular hecks to be sureI that they are ready for actionvi. Handling of hazardous and non hazardous material need to be impr ved especially in
storage, arrangement and prevention of oil spillage since there is o transformer oilleakage containment
vii. Repair of security lights is neededviii. The substation need more gravels
ix. The substation's toilet condition needs to be improved for the conve iience of workersin the substation
x. The substation needs a compound cleanness and appropriate w ste handling anddisposal practices. The machine parts scraps need to be cleared at I he substation andappropriately disposed
3.16 Kiyungi 132/66/33kV SubstationKiyungi substation (seen on photo 16 in Appendix 2) is located about 8km to the South of theMoshi town centre on the left bank of the Kikafu River next to the large s gar cane estate.Kuyungi S/S is the main station in Moshi area connected to the 132kV system t y the 132kV linefrom same-Hale and from Njiro S/S.
The S/station has one 132/66kV, 15MVA transformner of 1974 and one 13 /33kV, 20MVAtransformer of 1989. Also there are two 66/33kV, 5MVA transformers ard one 66/33kV,
. s l~IOMVA trunsforrner of 1967. Different vector group are connected to the seco idary side of the*132/66kV main transformner. Apart from SF6 circuit breakers, still there are s me oil breakersmainly for 66kV and 33kV circuits dating back from 1967 to 1984.
The proposal is to exchange 132/33kV, 20MVA transforners by a 132/33, 50M VA transformer.It is also proposed to install 132kV bay to connect the new 132kV line from Kiy ingi to Njiro S/Svia Kilimanjaro International Airport (KIA). The 33kV outdoor substation shal be rehabilitatedand extended or rebuild as a new indoor substation. For distribution system two additional 33kV
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line bays are being proposed to feed Machame and Boma Mbuzi substation and refurbish theexisting 33kV feeder bays.
3.16.1 Audit findings and the required remedial actions: Kiyungi Substat onThe audit found the following:1. In this substation, the PCB concerns are the transformers dating back 1974 and 1967.
Transforrners dating above 1980 are considered non-PCB transformers. It s believed that theretro filling, which has been going on in the substation, may have neutralize the concentration.The PCB study conducted by the Stone & Webster found out that out of f )ur sanples taken,three were found to contain traces of Aroclor 1254 and Aroclor 1260 c mpounds of PCB
ranging from o.5ppm to 205ppm. These values indicate that the oil has tra es of PCB, hencePCB contaminated. The conclusion made from the sarnple result is hat all suspectedtransformers dating back before 1980 are contaminated though in different c ncentration.
2. Oil leakage was seen on TI and T2 breakers3. The substation has few window type air condition units, whi h may contain
chlorofluorocarbons (CFCs) particularly R12 refrigerant which is commonl used in Tanzaniain AC repair work. However, no disposable units were seen at the site
4. The substation has oil containment for newly installed transformers but lac s the containmentfor the old installation. No oil leaks were seen on the transformers thoug . The site has nodesignated storage room for the oils instead it uses the regional stores
5. The workroom is air conditioned to maintain workplace air quality and the oom is quiet. Theoutside noise level is below 50dB during the day. No complains has s far reported by3 residents over noise levels
6. The substation is earthed and has protective shields to minimize radiation and magnetic fieldeffects
7. The substation is well fenced and has warning signs to prevent the ge eral public fromelectrocutions3 8. The substation needs improvement in the following areas:
i. Regular training of all personnel in safety & safety procedures, work procedures,accident and accident prevention and health risks
ii. Availing more reference materials of which employees could refer t or improve theirknowledge
iii. Emergency preparedness, prevention and response plan needs to be prepared andrehearsed
iv. First aid kit need to be furnished with important drugs and necessary equipmentv. Fire fighting equipment are inadequate need to be adequately su lied in required
proportions (foam, carbon dioxide, powder)
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vi. Handling of hazardous and non hazardous material need to be imp oved especially instorage, arrangement and prevention of spillage since there some tr msformer withoutoil leakage containment
. | vii. Avail portable water (dispensing unit)viii. Maintain security lights, put more danger signs
ix. The substation needs cleanness and appropriate waste handling and disposal practicesx. The substation needs more gravels
xi. Transformers found contaminated by PCBs exceeding SOppm nee I special attentionX to prevent leakage. When their useful lives come to an end the should be safely
disposed of
l3.17 Boma Mbuzi 33/l1kV SubstationThis substation (seen on photo 17:1-2 in Appendix 2) is located along the TP road. There aresome residential houses nearby substation.
The substation is currently equipped with 2 33/1lkV, 5MVA transforme of 1980. TheI substation is located north of Kiyungi and connected to the 33kV line Kiyungi - Boma Mbuzi -Rombo. It is suggested to rebuild the substation to the new 33/1 lkV standard It is designed tocover the load in the surrounding areas and be the starting point for the 33kV I ne to Rombo and1 I kV feeders to the surrounding areas.
It is proposed that the substation be an indoor 33/11kV equipped with one 3/11kV 15MVAI power transforner with a provision to add a second transformer. It further prop sed to add a full33kV transformer bay, two 33kV feeder bays, one equipped spare bay an space for four
l additional feeders.
l 3.17.1 Audit findings and the required remedial actions: Boma Mbuzi Sub tationThe audit found the following:I. The sub station has transformers and oil circuit breakers of 1980. This me Is by elimination
method the substation can be classified as PCB free substation2. No oil leakage was observed neither on the circuit breaker nor transformers3. The substation is remotely controlled from Kiyungi substation. Hence no eq ipment that may
have contained chlorofluorocarbons (CFCs) was seen on the site particularl R12 refrigerantwhich is commonly applied in Tanzania.I 4. The substation has no oil containment thus oil leaks may contaminate undergr und water
5. The substation is earthed to minimize radiation and magnetic field effects6. The substation is fenced to restrict access to the substation by unauthorized p ople however, it
needs repair7. The substation needs improvement in the following areas:
i. Repair of security lights, put more danger signs
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ii. Emergency preparedness, prevention and response plan needs l be prepared andrehearsed
iii. Eliminate features that put safety in danger by repairing or r placing broken ormissing slabs on cable trenches and improve the drainage system
iv. Supply of adequate fire fighting equipment in right proporti ns (foam, carbondioxide, powder) and ensure regular checks to be sure that they ar in order ready foruse
v. Handling of hazardous and non hazardous material need to be im roved especially inl storage arrangement and prevention of oil spillage since there is no transformer
containmentvi. The substation needs cleanness and appropriate waste handling an disposal practices
vii. The substation needs to have security guard shade and a toilet o be used by thesecurity guards and people working on the site
3.18 Trade School 33/11kV SubstationThis substation (seen on photo 18:1-2 in Appendix 2) is located off Moshi- asha road near thejunction to Bonite Bottlers Limited. It seemed to have switch board & control oom building andfencing rehabilitated recently.
l The substation is currently equipped with one 33/11kV, 5MVA transforme of 1975 and one33/1 IkV IMVA of 1983. According to the technical consultant the substati n has reached its
| useful life and needs to be rebuilt.
It is proposed to rebuild the substation as an indoor 33/llkV substation v ith one 33/llkV15MVA power transformer with a provision of adding a second transfor ner. It is furtherproposed to add a full 33kV transformer bay, three 33kV feeder bays, one equ pped spare feederbay and space for three additional feeders.
3.18.1 Audit findings and the required remedial actions: Trade School Su stationThe audit found the following:1. The sub station has transformers and oil circuit breakers of 1983 and 197 . This makes the
substation a PCB suspect on one transformer. As general observation the ubstation may bePCB free or contaminated based on the studies made in March 2004 by Sto e & Webster andJuly 2004 by Vice President's Office
2. Oil leakage was observed on the transformers which were off the circuit t at are waiting thedisposal
* 3. The substation is remotely controlled from Kiyungi substation. Hence no eq ipment was seen! S that may have contained chlorofluorocarbons (CFCs) particularly R12 re rgerant which is
commonly applied in Tanzania4. The substation has no oil containment thus any oil leaks will contaminate s il and eventually
surface and underground water
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5. The substation is earthed to minimize radiation and magnetic field effects6. The substation is fenced to restrict access to the substation by unauthorized p ople7. The substation needs improvement in the following areas:
i. Erect security lights and put more danger signsii. Supply of adequate fire fighting equipment in right proportio ns (foam, carbon
dioxide, powder) and ensure a regular checks to be sure that they are in order readyXI for use
iii. Handling of hazardous and non hazardous material need to be impi oved especially inl storage, arrangement and prevention of oil spillage since there is no transformer
containmentiv. The substation needs cleanness and appropriate waste handling and disposal practicesv. The substation needs to have a security guard shade and a toilet to be used by the
security guards and people working on the sitevi. For fiurther expansion an extra land will be required
3.19 Chalinze 132/33kV SubstationThis substation is located at Chalinze on the left hand side of the Dar - M rogoro road. Thesubstation has two transformers which are not working due to some malfunctic ning. One is rated132/33kV; 1OMVA was manufactured in 1962 and the other is 132/33kV; SMN A also of 1962.
It is proposed to upgrade the substation by installing two new power transform nrs in the range ofI OMVA together with switchgears. Other tasks will include changing the circuit breakers,current transformers, protection and control devices, supporting structures, add ng surge arrestorson all line feeders. Also the civil works will cover the upgrade of the intemal and external fence,substation drainage system and the building.
|l 3.19.1 Audit findings and the required remedial actions: Chalinze Substat onThe audit found the following:1. The sub station has transformners and oil circuit breakers of 1962. Hence by e limination method
(i.e. transformers and switchgears made after 1980 are classified as PCB fre ) the substation is-PCB suspect. However the weight of the oil is 25,800 British pounds (11,72 .3 kg) and volume
l of the oil is 2,990 British gallons (13,593 litres), which means the densit i of the liquid oil(11,727.3 kg/13,593 Its = 0.86 kg/Its3) is less than the density of water (no e: density of PCB
* oil is heavier than water i.e. 1kg/lts3). U 2. There was an oil leakage in one transformer
3. It has three (3) window air conditioning units which may contain chlorofluc rocarbons (CFCs).i |particularly R12 refrigerant which is commonly used in Tanzania for repair Morks
4. The substation has no transformner oil containment to prevent oil from cont uninating the soill l and ground water in case of spillage. Spare oil is stored in the above groun d tank which also
has no any containrment apart from gravels
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5. The substation noises come from the passing vehicles which is hardly heat d when you are inthe control room. Hence it is not dangerous to the workers
6. The substation is fenced and has waming signs to prevent the ge eral public froml electrocutions
7. The substation has poor drainage which needs to be improved8. The substation needs improvement in the following areas:
.* i. Improvement in general cleanness of the substation and removal f scrapsii. Emergency preparedness, prevention and response plan needs t be prepared and3 | rehearsed. A summary of important items of the plan need to be anged on the wall
for the reference of everyoneiii. A toilet needs some repairs to be in a standard condition and a se urity guard kiosk
is also needed. In addition, broken or missing cable trench slabs n ed to be replacediv. Fire fighting equipment is inadequate need to be adequately suppi ed in the required
proportions (foam, carbon dioxide, powder, etc.) and recharged w en expirev. Personal protective equipment such as helmets need to be supplie
vi. Training of personnel is needed. One person attended a course 20 years ago butothers have not attended any course
vii. Improvement in waste handling! * viii. The substation needs more gravelsix. Work procedures and safety guidelines need to be available in a k iown language to
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3.20 Public Concerns (Substation)The major concern of the public regarding the substations was a he th risk due toelectromagnetic effects. Although there is no proof yet of the effect here in anzania, peopleraised their fear based on the information available in the Intemet. Th World HealthOrganization (WHO) guidelines however, suggest that the level should not exceed 5000V/m.There were no complains or concems about the noise levels around the substa ions. Up to nowno any complaints have been received or reported to Substation authorities du ng the course ofthe study.
Note: TANESCO shall perform a laboratory analysis of the soil samnples under the transformerssuspected of PCBs in the year 2006 budget. When the fund becomes available a d the laboratorycapable of delivering the required analysis locally is found the soil sarnples shal be taken for the
l analysis.
3.21 Prioritised Audit Findings and Recommendationsl Below are the prioritised audit findings and recommendations. These facilities ill comply with
the World Bank minimum standard requirement after correction of the observed weaknesses andshortcomings in the following areas in the order of high concerns- high pri rity and lowerconcern- lower priority:
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I I . The environmental management and auditing is centralized at TANESCO H ad Office but isimplemented on site by the responsible regions or plants. TANESCO sh uld strength1enenvironmental nmanagement botlh at Head Office Environmental U it and at tlheimplementing Regions or plants
2. Waste management and handling was also seen to be a problem in most su stations. Piecesof solid wastes and scraps had no specific and designated area for collect an and eventualdisposal. Facilities (substations) should designate special areas (po nts) for wastecollection and collect all unwanted scraps for a safe disposal. Wastes o substation sitesuch as pieces of cables and other wastes could have special bins
3. Almost all of the transformers in use in the audited substations owned by T NESCO can beclassified as non-PCB. This is because among the samples sent for the labo atory tests fromthe audited areas, PCB was not detected or was below 50ppm. In one su station traces of3 PCB of less than 500ppm cut off point compounds were detected in transf rmers (i.e. sometransformers are PCB contaminated). This might be 6f concem to the World ank. However,the Vice Presidents Office (VPO) has labelled all these transformers a d they are notallowed to be moved from where they located without the permission from the VPO office.As these identified transformers are waiting for the National Strategic P an to eliminatePOPs TANESCO should ensure that they are not moved from wher they are andI substation engineers should ensure that there is no leakage to the s il or water. Inaddition there should be appropriate oil handling at all times.
l 4. In some substations, some of the old transformers dumped at substatio sites have oilleakages, which contaminate the soil. TANESCO (Regional Offices) sho ld collect thesetransformers and dispose them or store them in appropriate designed area that contains orI prevent the oil leakage to the soiL For all new transformer installations transformer oilcontainments should be considered
l 5. Fire fighting equipment is inadequate in right proportions (foam, CO2, pow er). TANESCOshould provide adequate fire fighting equipment in a right proportion foam, CO2 and
l powder) tofigght anyfire types in the substations
6. Environmental Management Plan and Monitoring of the substations is ab ent. TANESCOshould implement the prepared EMP and provide resources estimated at l ast USD 10,500annuallyfor monitoring plan.
7. Some of the cable trench slabs are broken or missing thus causing a safety sks at night andin case of emergency. TANESCO Regional Offices should plan the bud et and urgentlyreplace all lost or broken lids and slabs
1 8. First aid kit is not equipped and lack essential drugs. Substation engineers n collaborationwith Regional Offices should reequip the First aid kits as required
l 9. Some of the substations have their fences damaged, security lights not w rking and theirdanger signs missing or wom out. TANESCO should ensure that dam ged fences are
3 Environrmntal Audit Report -Final 39
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repaired, security lights work again and all danger signs are replaced to j Prevent and warnthe public ofpotentrial danger as they approach tlhefences
10. There is no clear identification of who has been assigned responsibility of t king care for theenvironmental matter of the substations. There is a need to assign re ponsibility to asubstation engineer who has to report performance in monthly report
Medium Concern - Medium priority
I 1. Except for Njiro, Kiyungi, Ilala, and FZ III, which have askari kiosks and oilets majority ofthe substations, have no such facilities. Security guards have got neither shade nor toiletsmaking their work difficult and dangerous in some cases such as rain s ason or at night.TANESCO is required to provide such facilities at the workplace for th convenience ofworkforce. It is recommended that security guard kiosks and toilets shou d be constructedfor those, whicl don 't have, and for those such as Sokoine city centre and Oyster Bay,
l which have the kiosks but toilets are out of order, should be restored and X vaintained
12. Working procedures and instructions are missing. TANESCO and subs ation Engineersshould prepare work procedure manuals and instructions and make thlel I available to allsubstation workers
13. Emergency preparedness, prevention and response plan was seen to e lacking in allsubstations audited in case of fire, major accident or major oil spills. Although somesubstations had radio calls and telephone lines no clear line of communi ation in case ofemergency was seen. TANESCO needs to prepare an emergency respons plan. The planshould be frequently practiced (hold regular drill to check whether the Ian performs asintended) and each employee should know all the information flow in case of theI emergency. Informationflow charts should be posted at a visible place
14. Although training has been taking place in TANESCO, trainings specific ly designed forI substation engineers, technicians and operators have been scarce and li ited to very fewindividuals. TANESCO (Head office which coordinates employee ' trainings incooperation withl regional offices) needs to organise regular courses (tail r made trainingI - programs to suit different cadres of substation employees and others) .su h as training onwork procedures, health and safety matters, hazardous material handling and emergencypreparedness and response
15. Oil spill is not a big problem in many substations. However, improveme t in oil handlingduring maintenance is required to all employees working in the substa ions. Substation
a engineer and maintenance supervisor should ensure oil handlers improve the oil handlingto prevent oil spillage duringfi lling up of Oil Circuit Breakers (OCBs) nd transformersor during retro filling and filtering the oil and all oil leaks from ti ansformers andswitchgears are contained
16. TANESCO has so far no formalized Environmental Management System EMS) though ithas a unit, which deals with environmental matters. The Major bottleneck to undertake theenvironmental programs is lack of budget. TANESCO has to develop and EMS suitable to
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its activities or adopt ISO 14000 standard in order to inmprove its environmentalmanagemett performantce. In addition fund for implementing managem nt plans shouldbe made available
* 17. Public Concern: the major concern of the public was a health risk due to electromagneticeffect. No noise complains or concerns were reported during the survey. Ts NESCO shouldmeasure the radiation and control the level to the WHO acceptable rangi which is belowSOOO V/m
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I Chapter 4Environmental Management Plan
Construction and operation of the substation may have various impacts to he enviroment.Environmental Assessment as a management tool could be used to identify t impacts beforeI the construction of a substation. However, the audit assessment found no rcc ds showing thatthere was any environmental impact assessment for the substations. This may e due to the factthat majority of these substations were constructed more than 20 years ago wh EIA was givenI little attention. The audit study has identified the environmental impacts that a e likely to occurin the construction and operation of the substation. The significance of these impacts may bereduced if mitigation measures and monitoring are put in place. This ch pter provides asummary of impacts, mitigation measures and monitoring plan.
3 In order to ensure that there is a system to track compliance with the WB an Government ofTanzania policies; Laws and guidelines, TANESCO have to commit itself a Id ensure that itestablishes the Environmental Management System (EMS). The advantages of having the EMSat TANESCO include: having people who are responsible for ensunn environmentalmanagement, having a systematic way of tracking the environmental problem and addressingthem in all aspects of company activities, having proper records and assignm -nt of budget to3 environmental programs.
The project document for the EMS establishment within TANESCO is appended
Table 4.1: Summary of Environmental Impacts and Proposed Mitigatior Measures
l | Impacts Mitigation Measures Accountability ( r MonitoringResponsible FrequencyInstitution
1. Waste generation(rehabilitation and operationphases)Oil spillage from leaking * Contain all transformers andI transformers and switchgears and switchgear oil leaks and construct TANESCO HQ. ndfrom oil mnishandling in the beams (Surrps) under the Regional Officessubstations could contaminate ttansformers to hold oil leakagessoil, surface and underground until remedial measures are takenwater risking ecosystem and to prevent oil spillage to thesurrounding corrmunity ground
l Refuse from office comprising of * Designate special refuse and waste TANESCO Regi nalpapers, plastic bags and non collection points (bins) and Officesdurable solids can litter the contract with authorized waste Waste
l surroundings collection companies or authorities collection(Municipals) for right disposal monthly
TANESCO HQ. ndWire pieces, metal scraps, * Metal craps should be sold to scrap Regional OfficesI * porcelain glass materials scraps buyers and any other wastescan be safety hazard to worker collected for safe disposaland the communityEnvironmcntal Audit Report -Final 42
2. Water Pollution (Operationphase)Oil spillage during maintenance * Improve oil handling practices andand oil leaks from transformers prevent oil leaks from seeping to TANESCO HQ. nd During theand oil circuit breakers can pollute the soil Regional Offices maintenancesurface and underground water
l 3. Noise pollution(Rehabilitation and operationphases)Excessive noise may cause a Noise levels should be monitored TANESCO HQ. nd
*i disturbance and discomfort to the to ensure that they are within the Regional Offices Annuallycommunity surrounding the World Bank guidelines, i.e. 70dBsubstation and may also cause in industrial setting and 45dB inhearing impairment in extreme residential areas along thecases substation boundaries4. Occupational Health andSafety (Rehabilitation andoperation phases)There is potential risks of work * Train the employees on work TANESCO HQ/related injuries, accidents, procedures, health and safety and Regional Offices DailyU electrocution and contamination provide the manuals Substationwith hazardous materials Supervisors/
* Provide employees with personal Engineerprotective gears
* Provide the first aid kits to every TANESCO HQ. nd3 substation Regional Offices
* Keep records of accidents and Substation supen isorreview the work procedures Annually
* Ensure that the personal protective Substation superv sorgears are applied as required
I *~~~~~~~~~~~~ Enclose the S/S to restrict access toTAECHQanall areas potential to electric TANESCO HQ.f ndshocks and high voltage. Entrance Reional Offices ndtshould be with special permission S/S managementto only well informed and awarepeople of the potential risks andI how to avoid
l Enployer to provide a safe TANESCOworking environment Annually
* Employer should provide welfare TANESCO/ Regi nalfacilities such as toilets, drinking Offices/eand washing water and otherhygienic requirements
and operation phases)I Oil leakage can cause water and * Transforner should have retainingsoil contamination affecting walls to prevent spilled oil to TANESCOI Re ional Duringlivelihood of the surrounding contaminate the soil, surface and Offices/ Substat n installation
- | community and the effect on flora underground water Supervisors/ of newI * and fauna Engineer transformers
* Maintenance technicians and otheremployees working in the S/S rnanagemenI substation should handle oil (engineer and Duringproperly during mnaintenance and supervisor) maintenanceduring transformer and switchgearsI ~~~~~~~~~~~~~~~~~refills
* Leaking transformers and TANESCO HQ.switchgears should be maintained Regional Office andto prevent further leaks S/S management
6. Emergencies (Rehabilitationand operation phases) _I Fire * TANESCO should provideFaulty electrical system, appropriate and adequate fire TANESCO HQ. nd Annuallytransformers overload and other extinguishers for all types of fires Regional OfficesI human errors may cause firewhich can destroy property and * Train the employees on how to usecause loss of life the extinguishers and type to be TANESCO HQ. nd
used for each type of fire. Also Regional OfficesI rehearse to check if emnployees canrespond effectively in actual fire
l emergencies
* Provide fire safety mnanuals if TANESCO HQ. ndpossible to the language known to Regional Officesevery employee
Accidents * Establish clear line of TANESCO HQ. LndAccidents may occur at any time communication of all parties Regional Officescausing injury, death or concemed (Police /Hospitals/ Fienvironmental damnage. and Rescue depar t) Annually
* Prepare an emergency plan andrehearse to ensure that the planworks as intended TANESCO (Safe
department)I ________________ * Prepare emergency plan manualsand emergency procedures
7. Electrocution (Rehabilitationand operation phases)Substations are place where * Enclose all substations to restrictnormally there are high voltages, access to unauthorized people TANESCO HQ. ndwhich kill instantly by just a Regional OfficesI single touch. This place may be * Put warning signs to alert alldangerous to the public and members of the public over thecornuunity living nearby potential dangers of touching the _
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| ~~~~~~~~~~~~~~fence or breaking inside the fence
, *~~~~~~~~~~~~~ People working on the sitc duringthe rehabilitation work must beaware of the potential dangerswhile working in the substationand appropriate work proceduresmust be strictly followed andI __________________________________ en fo rced
8. Sewage (Rehabilitation andoperation phases)Workers on the substationsgenerate sewer wastes. Hence * TANESCO and contractor should TANESCO HQ. nd Quarterlyinappropriate disposal of sewage, ensure that good sanitary Regional Officeswhich has pathogens responsible conditions are provided to theII for diseases such as diarrhoea, workforce in the substations. Indysentery, cholera, etc., can result addition appropriate disposal of theto such deceases to the workers sewer wastes is done by approvedthemselves and the community person in accordance with thearound town, municipal or city regulations9. Need for extra land(Rehabilitation phase)I Need for the extra piece of land Utilize the existing land whenever TANESCO HQ. and Duringfor substation expansion may lead possible based on available technology the selected desi n planningto relocation of people in some and cost. contractors
| ~~~substationssubstatios *Acquire the new land following the TANESCO HQ., Before the
land acquisition procedures Ministry of Land implementat(compensation and preparation of and Human ion of theI resettlement action plan - RAP) Settlement project
Development,Regional Offices ndI affected people
Decommnissioning stagePolluted land * Land which has been polluted must
be cleaned so as to return it to its TANESCO HQ a id When theoriginal state to allow other land regional offices useful life ofuses the
substation* * All contaminated soil must be becomes to
treated and disposed of or safely an end.stored to prevent further pollution.(note that soil with PCBs needspecial treatment)l
* If the land is to remain abandonedthen it must be re-vegetated
Wastes * All solid wastes at the site are to beremoved from the site for safe When thedisposal (these include old useful life ofbatteries, transformer windings and thecasing, insulator materials, etc.) substation
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Impacts Mitigation Measures Accountabilit or Monitoring* Responsible Frequency
InstitutionLiquid wastes such as transformer becomes tooil must be emptied from the an end.transformers re-used at other sitesif it is good or otherwise send it tospecialized practitioners for safedestruction. Alternatively store itsafely while waiting for the furtherdecisions to be made.
TANESCO shall commit itself to ensure that the above mitigation measure are fully fundedthrough its operational budgets
Table 4.2: Proposed Environmental and Social Monitoring Plan (ESM ) for thel Construction and Operation of the Substations
Impact/ Issue Monitoring Action Frequency/ Responsib 1 Indicative{ Time Frame institution costs_Il In USD
Rebabilitation and OperationAir Quality (Dust * Monitoring of nuisance of dust Daily during Contractor/nuisance) during site preparation for new construction TANESCO S/S 500
transformer foundations and supervisioninstallation
Noise resulting from * Monitoring of noise levels in dB Soon after Contractor/ 500overloaded (A) to ensure comnpliance with WB rehabilitation TANESCOtransformers and guidelines after any major facility work andduring rehabilitation maintenance or installationwork Annual check TANESCO HQ 1,000
up for and NEMCcompliance
Water Pollution and * Monitor transformer and Daily and Contractor/ 500soil contaniination switchgear oil storage, oil spills, during the TANESCO
leakage and any oil mishandlings maintenance
* Check environmental awareness of Annually TANESCO Q 1,000l | substation emnployees to ensure that and NEMC
they abide by the principles ofenvironmental protection
* Take water and soil samples forlaboratory testing (specifically for Annually TANESCO Q 1,000substation close to the water and NEMC
|_______________ _ | *bodies) to check the compliancesWaste Management * Monitor collection and removal of Contractor/
all wastes at the sites and dispose Monthly TANESCO 500them appropriately Regional 0 ices
or S/S supe risor
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Health and Safety of * Monitor the providence and use of Daily andWorkers personal protective gears annual Contractor uring 500
checkups the constru tion* Monitor the use of personal and TANE CO/
protective gears, work procedures Daily and Substationand injury reporting mechanism annual supervisors
checkups
* Monitor implementation ofworkers health and safety Annually TANESCO HQ 2,000procedure, First Aid Kit and NEMC uringmanagement and training program the annual
* checkups
* Monitor and review occupationalinjury and illness reporting and Annuallyresponse to injury or accidents(injury and accident investigationprogram)
l * Monitor and review emergency Annuallyresponse Plan perfornance
laCompliance with * Monitor compliance of allLaws, regulations applicable permits and guidelines. Annually TANESCO Q., 2,000and guidelines Regional O ices
* Monitor and maintain lines of and NEMCcomnmunication with all relevantgovernment institutions, agencieson issues of environment, wateruse, health and safety, fire,accidents, etc.
Education and * Monitor Power Station TANESCOTraining staff training program to verifyI compliance with substation Annually TANESCO Q., 1,500
training requirements (work Regional of cesprocedures, safety issues, and NEMCI emergency preparedness, healthrisks, environmental awareness,reporting, working in confined
l spaces, etc.)
DecommissioningLand * Monitor that the land is returned to TANESCO I [Q.,
its original state that would allow Regional Of ices,other land uses End of NEMC and
operation Municipal 3,000* Monitor that all contaminated soil phase Authorities
is removed and replaced with agood soil (note that soil with PCBsneed special treatment byspecialized process)
* Monitor re-vegetation of the land
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________ _ _In USDIWastes . Monitor that all solid wastes from TANESC HQ.,
* the site are removed and ensure End of Regional ffices, 2,000that they are safely and operation Decommii sionappropriately disposed of (these phase Engineer, EMCinclude old batteries, transformer and Munic palI windings and casing, insulator Authoritiematerials, etc.)
* Monitor that all liquid wastes such* as transformer oil are removed
from the site for safely storage ortreatment. Good oil can be re-usedin another site.
A total estimated cost for implementing this ESMP is USD 11,000 annuall and USD 5,000during the decommissioning process. This amount of money shall be m de available byTANESCO. The costs are for the monitoring exercise staff from TANE O head -office,Regional offices and National Environmental Management Council (NEMC) xperts, transport,laboratory and monitoring equipments. NEMC is included in the monito ng phase as anindependent body with a given authority to monitor environmental compliance and according tothe conditions of the environrmental license.
TANESCO is committed to follow the country's policies and continue to c mmunicate withrelevant sectors and ministries to ensure that environment is protected and he Ith and safety ofworkers and people around our facilities is guaranteed.
TANESCO shall prepare monitoring reports regularly and submit the sam to the relevantauthority as require by EMA (2004). 1TANESCO shall provide environmental education to its staff of all levels to ens re environments
ltw. at work places are protected.
TANESCO shall maintain the line of communication to all people with any co cerns (social orenvironmental) and complaints about our facilities.
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Chapter 5
l Conclusion and Recommendations
The overall conclusion is that majority of the substations meet the Work Bank minimumrequirement with only few minor corrections. The remedial costs are to be co ered in Regionalrepair and maintenance budgets. It is proposed that Regional offices review the document toI understand the shortcomings of the substations in their area and workout the ac ual budgets to beapproved by the regional administration.
It is the responsibility of TANESCO Regional Offices of which these substati s fall in the areaof their jurisdiction to ensure that they do corrective measures so as to fully comply with theWorld Bank minimum requirement. TANESCO Head Office shall provide as stance whenevernecessary to the regional offices.
1. TANESCO should strengthen environmental management both Head OfficeEnvironmental Unit and at the implementing Regions or plants
2. Since TANESCO has so far no formalized Environmental Management ystem (EMS) inspite of having an environmental unit, which deals with environment I matters. ThenTANESCO has to develop an EMS suitable to its activities or adopt ISO 4000 standard inorder to improve its environmental management performance. In addition, fund forimplementing management plans should be made available
3. Although training has been taking place in TANESCO, trainings specific ly designed forsubstation engineers, technicians and operators have been scarce and li ited to very fewindividuals. TANESCO (Head office which coordinates employees' trainin s in cooperationwith regional offices) needs to organise regular courses (tailor made trai ng programs) tosuit different cadres of substation employees and others. such as training ay include workprocedures, health and safety matters, hazardous material handling and emergencypreparedness and response
l 4. Since it was observed that no clear identification of who has been assigned responsibility oftaking care for the environmental matters of the substations. Therefore, su station engineersor supervisors should be assigned also such a responsibility and re uired to reportperformance in monthly reports
5. TANESCO needs to prepare an emergency response plan in the event of fir , major accidentor major oil spills. All audited substations didn't have the plan. Workers nee to rehearse andI understand the information flow in case of the emergency so as to check hether the planworks as intended. Information flow charts should also be posted at a visible place
6. Waste management need to be improved in all the substations as this iAas seen to be aproblem in most substations. Substation management should designate spec ial areas (points)
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for waste collection before safe disposal. Special bins can be used to stor collected wastes
such as pieces of cables, insulators and other wastes in the substation site b fore disposal
7. Raise awareness of people working in the substation on the potential hazard of oil spill to the
environment and how to handle it appropriately during refilling, oil filtering or maintenance.
l 8. TANESCO Regional Offices are required to provide toilets and askari kio k facilities in the
substations for the convenience of workforce. There are some which nee repair and some
! 3 which need to be constructed. With exception of Njiro, Kiyungi, Ilala, ar d FZ III all other
I substations lack toilet, askari kiosk or both.
9. TANESCO (Regional Offices) should collect all old transformers dumped at substation sites
which some of them have oil leakage and dispose them or store them in ap ropriate designedareas that may contain or prevent the oil leakage into the soil.
* 10. TANESCO should provide adequate fire fighting equipment in a right prop rtion (foam, CO2
and powder) to fight any fire type in the substations and ensure that equip nent are regularlychecked to be sure that they are working properly. Some substations h d inadequate firefighting equipment or right proportion.
11. TANESCO departments and substation engineers should prepare work p rocedure manualsand instructions where such instructions are very essential and make th m available in a
known language to all substation workers. Many substations had no workii g procedures and
I instructions at all or had instruction written in a language not understandabl by majority.
12. TANESCO should provide resources estimated at least USD 11,000 annually to facilitate
I implementation of the proposed ESMP and monitoring plan. Other mitiga tion costs will becovered in construction costs.
13. TANESCO Regional Offices should budget and urgently replace all lost c r broken lids and
slabs to improve the safety in the substations as some of the cable trench slabs were found
broken or missing increasing a safety risks at night and in emergency cases.
14. TANESCO's substation engineers in collaboration with their Regional Offices shouldreequip the First aid kits as required since most of first aid kits are n t equipped with
essential drugs.
15. TANESCO should ensure that transformers identified having PCB cont ination (below500ppm) are not moved from where they are located. In addition substation engineers shouldensure that there is no leakage to the soil or water. Further there should le appropriate oilhandling at all times while waiting for the national strategic plan to elimin; te POPs preparedby the Vice Presidents Office (VPO)
16. TANESCO should ensure that fences are repaired, security lights work ng again and alldanger signs replaced to alert people of the potential dangers as they approa h the fences
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Bibliography1) Pollution Prevention and Abatement Handbook, World Bank Group, 1 98, pp 186-192,
I pp 436-440.
2) Intemational Finance Corporation, Environmnental, Health and Safet Guidelines for3 electric Power Transmission and Distribution, 1998.
3) Intemational Finance Corporation, Environmental Health and Safet Guidelines forPolychlorinated Biphenyls (PCBs), 1998.
I 4) Intemational Finance Corporation, Environmental Guidelines for Oc upational Healthand Safety, Environmental and Social Guidelines for Occupational Heal h & Safety, June2003.
5) The United Republic of Tanzania, the National Energy Policy, Minist y of Energy andMineral, February, 2003.
6) SAPP, Afritan Centre for Energy and Environment, Environmental A diting: TrainingManual February 2004, Botswana.
1 7) UNEP Chemicals, Proceedings: Subregional Workshop on Managem nt of PCBs andDioxins/ Furans, Arusha, Tanzania, November 2000.
8) SAPP, Draft SAPP Guidelines on the Management of Oil Spills, 2004
9) Stone and Webster Consultants, Tanzania Electric Supply Company Limited, SituationAssessment and Environmental Audit, Final Report Version 2.0 Power SectorI Restructuring Project- Tanzania, 2004.
10)TANESCO, Emergency Power Project (EPP), Environmental audits o Thermal PowerPlants - Songas Ubungo, IPTL Tegeta and TANESCO Nyakato Mwan a, Final Report,June 2004.
*1) Vice President's Office, PCB Inventory Project, Field Testing data s eets for Dar esI Salaam, Arusha and Kilimanjaro, June-August 2004.
12) Lahmeyer Intemational, TANESCO Reinforcement and Upgrade of Dar es Salaam,Kilimanjaro and Arusha, Transmission and Distribution System, Feasibility StudyReport, 10 December 2004.
13) Wartsila Tanzania Limited, Guidelines for Employees, 2002.
14) Wartsila Tanzania Limited, Operation and Maintenance: A Guide to Safe ty & Health
15) Songas Limited, Songo Songo Gas to Electricity project: Environ nental & SocialI Assessment and Management Plan, January 2001.
16) Songas Limited, SHE-Standard, January 2004.
17) National Environmnental Management Council, Tanzania Enviro mental ImpactAssessment Procedures and Guidelines Volume I through V, 2002
18) The Environmental Management Act, 2004, the United Republic o Tanzania, ActSupplement No. 3 of I lthe February 2005.
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* APPENDIX 01: CHECKLIST
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ENVIRONMENTAL AUDIT CHECKLIST FOR MOSHI AND ARUSHA SUBSTATIONSSUBSTATIONS and Voltage Transformation
GUIbELINES CONSIbERED NJIRO UNGA KILTEX THEMI MOUNT KIYUNGI LAWATE BOMA TRAbELIMITED MERU MBUZI SCHOOL
Electric Power Transmission andbistributionPCBs Oils in transformers and switchgears
• Transformers with PCB X X X X X X X XSuspect
. Switchgear with PCB X X X X X X X X X
. Safe disposal of PCB oil NA NA X NA NA NA NA NA NA
* Labelling . X x x x x x
. Oil leakage v smll " small OC8 X v T1,T2 v'OCB X X
. Retrof illing I I V I I
. Transport (restriction) X X X X X X X X X
. Storage NA NA X NA NA X NA NA NA* Fire prevention NA NA NA NA NA. NA NA NA NA. Security (fencing) NA NA NA NA NA NA NA NA NA
Equipment with Chlorofluorocarbons(CFCs) or Halon
Window type Air Conditioning andrefrigerators may contain R12which is a common and cheaprefrigerant in use in the region. Presence of equipment in use v AC None None None I AC I AC None None None
w,hic.. zy _nin CFCs (AC,refrigerator)
* Safe disposal of equipment X NA NA NA X X NA NA NAwith CFCs
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SUBSTATIONS and Voltage TransformationGUIDELINES CONSIDERED NJIRO UN6A KILTEX THEMI MOUNT KIYUN6I LAWATE BOMA TRADE
Storage of liquid fuels, raw and inprocess materials, solvents, wastes:to prevent spills, to prevent soilcontamination and to prevent groundand surface water contomination.
. Containment, Dikes and Berms I New None None None I New V X X(e.g. for trcnsformers) instal. instal.
. Storage facility "' impr. X X X X X X. Drainage I Ok X imprv X I Clean Poor Poor Ok. Need for extra gravel X
Work Place Air Quality* Monitoring of workplace air ,. x
quality60ood ventilation (ensure) It is It is It is It is It is It is
. Maintenance of air quality AC X remotely remotely remotely AC remotel remotely remotely
.Providence of respiratory controlle controlle controlle x controlle controlleequipment d. Only d. Only d. Only controll d from d from
. Enforcement of the a guard a guard a guard ed from Kiyungi. Kiyungi.application of personal X X is on the is on the is on the X Kiyungi. Only a Only aprotective equipment site site site No guard is guard iswhenever exposure levels of personn on the on thefumes, solvents and othermaterials exceed threshold el at site site
________- ----- limits _________thc site
Work place NoiseW Noise control equipment Levels Levels The S/S The S/S The S/S Levels are
World Bank limit levelsAmbient Noise | Night low below Is on the is RC. is RC. below The The S/S The 5/SResidential 55 dB 45 dB limit limits industria Noise Noise limits S/S is is RC. is RC.Industrial 70 dB 70 dB _
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SUBSTATIONS oad Voltage Transformation
G6IDEUNES CONSIDERED NJIRO UN6A KILTEX THEMI MOUNT KIYUNGI LAWATE BOMA TRADE
. Maintenance of equipment I I setting below below / RC. Noise NoiseOverload Overload however the limit the limit Overload Noise below belowRelief relief the Relief below the limits the limits
. Use of protection gears when X level Levels noise is X level s are thenoise level exceeds 85 dBA within limit below 85 below within limits limits
limitsOther physical Agents
. Safe working area (absence of / / E h Erth / Earth I Earth I Earthradiation, magnetic fields) Earthed
* Monitor regularly forradiation and field levels and / I I I I
Electrocution. Strict procedure fordc- d I I I I I I
energizing before working onelectrical equipment
. Training of personnel forsafety procedures / RC RC from RC from i improve RC from RC from RC from
Njiro Njiro Kiyungi Kiyungi KiyungiOccupational Health and SafetyGuidelinesPhysical factors in the workp!a: __
Signoge X impr. X improv X improv X improv I imprv X improv
Lighting (including security lights) X maint. X improv X repair X reptir I repair - X repairFire detection mechanism/equipment X X X X X X X X XFire fighting equipment Imprv I impr X / imprv I imprv I Imprv X I imprv /imprv
Cleanness (inside and outside 5/5) 1 impr X improv X imprv X imprv I improv X imprv / imprv
3
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SUBSTATIONS and Voltoge TransformationGUTCELUNES CONSIDERED NJIRO UNCA KILTEX THEMI MOUNT KIYUNrJI LAWATE BOAA TRADE
. ~~~~~~~~~~3kV kVFirst Aid kit X X X RC X X X poor X X XFeatures thet pose safety risks X / slabs X I slabs X X X X X(missing or broken slabs dogged holes,etc)Fence or enclosure of the site / Poor Poor V o l Poor(Restrictions of unauthorized people) Improve
Welfare facilities
Safe and clean Drinking water / boiled / boiled X X X '( boiled X X XToilets ' /impr X build X X X XTV/Radio ' X NA NA NA NA NAGuard kiosk X build . X X
Personal protective equipmnent:
Eye and face, /2 prs X X
Head X Remote I RC from RC from RC from
Hearing X X controlle RC from RC from X Kiyungi Kiyungi KiyungiHand " " d Njiro Njiro IRespiratory, X X (RC) x
Leg and body I Boots I Boots . "Boots
Ambient factors in the workplace
Noise X X X normal
Vibration X X RC RCRC X RC RC RCIllumination Ok /Ok
Reflections X X XTemperature / Ok Improve / OkHazardous materials X X X
Biological agents X X X
Ionisation radiation X X X
4
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- - m - - - -- - -- - - - -
SUBSTATIONS and Voltage TransformationGUIDELUWNS CCtSIDERED NJIRO UtNGA KILTEX THEMI MOUNT KIYULNGI LAWATE BOMA TRADE
Training (Learning materials, equipment X X Xand tools) PRemote RC from RC from RC from RC from RC fromTraining on operational hazards and v need controlle Njiro Njiro Kiyungi Kiyungi Kiyungihow to control the hazards more Trng d by N improv
Training on Health risks, hygiene, and X need more Njiro /
exposure prevention: Trng Substati
Training on accidents and accident / need more on improvprevention, protective equipment and Tronclothing ng personne
Performance Monitoring
OHSMS organization Policy X X NA NA NA X NA NA NA
Emergency prevention, preparedness I poor I poor X X X limited I poor RC Umited RCand response limited limited limited limited limited
Investigation of work related injuries, X X NA NA NA NA NA NAill health, diseases and accidents
Safety inspection, testing and I I I / I I I IcalibrationMaterial handling (Hazardous and nonhazardous Materials) x x X X improv X X X
. Storage .
. Labellinq ' X x X X X X X X X
. Handling / need I Need " imprv I imprv I need I imprvImprov improv improv Improv __
Solid wastes / scraps I/ Need I improv I impry I imprv v poor I imprv Iimprv. Handling Improve improv Improve
. Disposal I Imprv. X improv / imprv I imprv I Imprv. I imprv I imprv I imprv_______________________ _______ _______ improvec______ _______ ________ ______ _______ _______
11 5~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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SUBSTATIONS and Voltage TransformtionGUIDELINES CONSIDERED N3IRO UNGA KILTEX THEMI MOUNT KIYUN6I LAWATE BOMA TRADE
Window type Air Conditioning andrefrigerators may contain R12 whichis a commron and cheap refrigerant inuse in the region
. Presence of equipnent in use V AC None None None None " AC " AC None / Nonewhich may contain CFCs (AirConditioning, refrigerator)
• Safe disposal of equipment with X X X NA NA X X NA NA NA NACFCs
Storage of liquid fuels, raw and inprocess materials, solvents, wastes: toprevent spills, to prevent soilcontamination and to prevent groundand surface water contamination.
. Contoinment, Dikes and Berms X X None X X X X X X(e.g. for transformers)
. Storage focility X X X X X X X X
* Drainage V Ok X poor Ok X imj.
. Oil kokage X X X X X handling 1 Transf Xcontrol
. Need for extra grvel X X
Work P1-sr Air Q_ _l_t_
* Monitoring of workplace air I _quality Itis It is It is It is It is It is It is It is AC
. Good ventilation (ensure) remotely remotely reotely remotely remotely remotely remotely remotely OK
. Maintenance of air quality AC controlled. contr.ole controlled. controlled controlle AC need controlled controlled controlled ACOnlya d. Only Only a d. Only repair Only a . Only a
. Providence of respiratory X security a security a x security srity NAequipment guard is on security guard is on security guard is guard is
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SUBSTATIONS and Voltage Transformation
GUIDELINES CONSIDERED ILALA SOKOINE CMTY MIKOCHE ASASANI OYSTER FZONE FZONE FZONE I IKUQASIN Chibze
CENTRE NI BAY III U132/33/ 33/11 kV 33/11 33/11 kV 33/11 kV 33/11 132/33/ 33/11 kV 33/11 kV 33/11 kV 132/33
1 kV kV kV 11 kV
Enforcement of the application the site guard is the site gu'ard is on the on theof personal protective X on the on the X site site NAequipment whenever exposure site sitelevels of fumes, solvents andother materials exceedthreshold limits
Work place Noise The S/S is* Noise control equipment 'Levels The S/S is The S/S on the The 5/S is The S/S Nbise Not
World Bank limit levels within RC. Noise is RC. industrial RC. The is RC, levels The S/S is The S/S The S/S measured
limits level below Noise setting average The within the RC. Noise is RC. is RC.
Ambient Noise Day I Night 55dB the limit within The Noise level average limits within the Noise Average
Residential 55 dB 45 dB the average is 47dB Noise limit within the NoiseIndustrial 70 dB 70 dB _ limits noise level level is limits level is
* Maintenance of equipment is 62dB 56dB 48dBOverload which is Overload
Relief below 70dB Relief
* Use of protection gears when X limit X level s
noise level exceeds 85 dBA exposure are within
duration limits
Other physical Agents* Safe working area (absence of I I Earth I Earth / Earthed V Earth / Earth / I Eorth I Earth I Earth V Earth
radiation, magnetic fields)
* Monitor regulrly for radiationand field levels and equipment v I I 1 1 1 . / I
Electrocution* Strict procedure for de- V I I / I / I I I
energizing before working onelectrical equipment
o Proper fencing of s/s to 1 need _ " repair / repairprevent the public from repaireectrocution ra
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SUBSTATIONS and Voltage TransforniotionGUIDELINES CONSIDERED ILALA SOKOINE CITY MIKOCHE MSASAIN OYSTER FZONE FZONE FZONE I KUtASIP Chalnze
CENTRE NI BAY III II132/33/ 33/11 WV 33/11 33/11 WV 33/11 kV 33/11 132/33/ 33/11 kV 33/11 WV 33/11 kV .132/331lkV kV kV 11 kV
. Training of personnel for safetyprocedures improv RC fran RC from RC RC RC 'need to RC from RC from RC from X need
DIQa or Ilala or continue Dalo or Iala or IIao or trminingUbungo Ubungo Ubungo Ubungo Ubungo
Occupational Health and SafetyGuidelinesPhysical factors in the workplaceSign-ge I inprov ' V
Lighting (including security lights) . X repair X repair X mepair / repair / repair X repair X repair V replaceFire detection mechanism/equipmrent X X X X X X X X X X XFire fighting equipment Irrprv l irnpr imprv i irmrv impr V prv 'mrv Irnprv X replce X reploce imrprv IimprvCleanness (inside and outside 5/5) X imprv I improv X imprv X imprv I imrovv X imprv imprrv I irnprvFirst Aid kit X X X X RC X X X poor X X X '(improFeatures that pose safety risks (missing X X '(repair X X X X replace / replace X Repairor broken slabs dogged holes, etc) slbs improve slobsFence or enclosure of the site repair / poor(Restrictions of unauthorized people) Improve repair
Welfare facilitiesSafe and cleona rinking water X X X X /top X X XToilets / repair 'repair X build - / X const. X impr
TV/Radio NA NA NA NA NA / NA NA6uard kiosk ' .1 l X build X X
Personal protective equipmrent:
7 Eye and face, X -
RC from RC controlled RC RC fror maintained IlaIQ or NAHead Ilad or (RC) IlaIQ or by Elect. Ubungo I improv
Hearing X Ubumgo Ubulgo X W/P NAHand S/S
Respiratory, X X NALeg and body .(Boots /
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SUBSTATIONS and Voltage TransformationGUIDELINES CONSIDERED ILALA SOKOINE CITY MIKOCHE MSASAMN OYSTER FZONE FZONE FZONE I KUPRASI Chd.i
CENTRE NI BAY III II132/33/ 33/11 kV 33/11 33/11 kW 33/11 kV 33/11 132/33/ 33/11 WV 33/11 kV 33/11 kV 132/33
11 kV kV kV 11 kV
Ambient factors in the workplaceI normal
X RC RC RC RC RC within RC RC RCNoise limits OKVibration X X NoneIllumination I Ok I Ok NoneReflections X X NoneTemperature I Ok V Ok OK
Hazardous naterials X X NABiological agents X X None
Ionisation radiation X X Notmeasured
Training and documentationTraining (Learning materials, equipment X Xand tools) RC from RC from Remote RC from RC from PC from RC from RC from X none
Training on operational hazards and how hala or dalo or controlled Ibala or lIal or lIhab or Ilao or Ilala or Xto control the hazards Ubungo Ubungo Uburgo Ubungo I impv Ubungo Ubungo Ubungo
Training on Health risks, hygiene, and X X Xexposure prevention;
Training on accidents and accident / inmrov Xprevention, protective equipment andclothing .Performnce Monitoring _ _.
OHSMS organization Policy X NA NA NA NA NA X NA NA NA NAE _ritecy pre"mntion. pmparsdn.s an X limiied-X4-lld- X X limited-- X *imited -- poor -imi ted- LiUIdc R C mm response limited limited I limited
Investigation of work related injuries, ill X NA NA NA NA NA improv NA NA NA Nonehealth, diseases and accidents
Safety inspection, testing and colibration IX
1O
- -- - - -- - - - m -- --- - - - I.
SUBSTATIONS and Voltage Transformation
GUIDEUNES CONSIDRED ILALA SOKOINE aTY MIKOCHE AMSASAM OYSTER FZONE FZONE FZONE I KVRAJ Chdainz.
Reinforcement and Upgrade of Dar es Salaam, Kilimanjaro and Arush i Transmissionand Distribution SystemI Photos 4: Ilala 132/33/llkV Substation
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Reinforcement and Upgrade of Dar es Salaam, Kilimanjaro and Arush Transmissionand Distribution System
Photo 5: City Centre 33/lkV Substation
1~~~~~~~~~~~~1
I Photo 6: Sokoine 33/1lkV Substation
l~~~~ ___________-
Photo 7: Factory Zone II 33/lkV Substation
II -~~~~~~~~~~~~~~. rM _
I Photo doc. 5
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'Reinforcement and Upgrade of Dar es Salaam, Kilimanjaro and Arush Transmissionand Distribution SystemI Photo 8: Factory Zone III 132/33/l1kV Substation
TEMPLATE TO BE I'ILLED FOR EVERY (OIL) SAMPLED EQUIPMENT
SampleNumber: i - VI~-NORTHDate of Sample: 5 I02-1200% Name of Region:- - A I N-0 RThName and designation of person who took the sample: t.) UFL"=-A-f'JYA (Ri 91Equipment Identification Number and Name: T* 3 ['AZ -Type of Equipment (See note below): $-ii2,-'TAh~-IN '-A-'Fctie7
C..apacity of Equipnment (kW or kVA): zi-ogo v-,VA ^IE3quiprnicii Iinstallation Date (fromi nanmeplate if available): I G @`3?\1anie of Substation or Feeder: cOrY ST niZ A Y ~'. (T~-a&7A-7n o tj
ote: Distributioil Tr-ansformner, Substation Transformer, Capacitor Bank or Voltage Regulator
Z7--… --------- --------- --------- --------I
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_I - ===- - =--= =-- =---- - - =- =- =n -
TENIPLATE TO BE FILLED FOR EVERY (OIL)SAMPLED EQUIPMENT
npleNumber: I ieofSample; 6 a Ž?Q4lC of Regioln; .T t-ne and designation of person who took the sample: 14N M AS A T1'A A T'c9t'iipmenit Idenitification Numniber and Name: 9 L; k23 0° '
le of Equipment (See note below): v 6 S -t G W 7 G A t o -z c .acity of Equipment (kW or kVA): ¶ g i t oQfA 3 3 ji V vipnient lnstallation Date (fionm nameplate if available): I { t 3.ie of SuLbstationi or- Feeder: 6U Ck ki kt-A - 3u A ti (.PAcTOY 2 *o&i EI7
I: DistribuLtion Transformer, Substation Transfoi-mer, Capacitor Bank or Voltage Regtulator
.~~~~~~~~~~~~~~~~~~~~~~. ~~~~~~~~~~I
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TEMPLATE TO BE FILLED FOR EVERY (OIL) SAMPLED EQUIP MENT
Sample Number: ol (TI)l Date of Sample: 5| 3 /Q004
Name of Region: fName and designation of person who took the sample: - cV% S
Equipment Identification Number and Name:__
Type of Equipment (See note below): r SLt'c' hc t
l Capacity of Equipment (kW or kVA): 5 C>
Equipment Installation Date (from nameplate if available):
3 Name of Substation or Feeder: A-rv 4 .
Note: Distribution Transformer, Substation Transformer, Capacitor Bank or Voltage Regulator
II
I. lTENIPLATE TO BE FILLED FOR EVERY (OIL) SAMPLED EQUIPA [ENT
SampleNumber: Z,Z (-T3)Date of Sample: 5 / z | /Oo4r j;ame of Region: A-f"&a-Name and designation of person who took the sampl e: x - 1Ap Lo
Equipment Identification Number and Name:* Type of Equipment (See note below): c* | Capacity of Equipment (kW or kVA): lOOo -
Equipment Installation Date (from nameplate if available):Name of Substation or Feeder: AYrA4t6A0 a
Note: Distribution Transforrner, Substation Transformer, Capacitor Bank or V Itage Regulator
877-09-8 Tetrachlor-m-xylene 18% b 34-138%2051-24-3 Decachlorobiphenyl 22% 20-162%
(a) Percent solids not analyzed due to sample tnatrix. Results reported on wet weight bas(b) Outside control limits due to narix interference.
ND = Not detected MDL - Method Detection Limit j - Indicates an estimat d valueRL - Reporting Limit B = Indicates analyle fa id in associated method blankE - indicates value exceeds chbation range N - Indicates presumptive evidence of a compound
I 2 5 cI~~~~~~~~~~~~~~~~~~~~~~~~IJXJI
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Report of Analysis Page I of I rCUent Sample ID: I-K/NORTHLab Sampk ID: 17312-6 Date Sampkd: 02/05/04Matlx: SO -Oil Date Received: 04/16/04Method: SW846 8082 Percent Solids: n/a'Project: Tanesco - Tanzana
~ Pile ID DF Analyzed By Prep Date Prep Batch A y dcal BatchRu #I b GG18357.D 1 04/21/04 NS 04/21/04 OP3302 GG 555
* ~~~~Run #2
* | Initial Weight Final VolumeRun#1 2 .Sg 10.0 mI
87709-8 Terchloro-m-xylene 46% 34-138%* 2051-24-3 Decachlorobipkenyl 17% c 20-162%
(a) Percent solids not analyzed due to sample matrix. Results repotted on wet weight basis.(b) Sample appears to contains PCB congeners thal do no( malcb any of the standard PCB palterns.(c) Outside control limits due to matrix interference.
ND - Not detected MDL -Method Detection Limit J - Indicaes a estimated value _ _RL - Reporing Litmi B . Indicates analyte found In a dsodated method blankE - Indiates value exceeds calibration range N - Indicates presumptive evidence of a pompound
p 5 Oof32
1I2ACCrTr T
I I
s ~~~~~~~~~~~~~~~~~~~~~~~xeport ot PageW,,,
Client Sample ID: 01 (Tl)-ARUSHA I of ILab Sample ID: T7311 -9 Date Sampled:Matrix: SO -OU Date Received: 03/05/Method: SW846 8082 qWR46 35i0A Percent Solids: 04/16/Project, Tanesco T Tan8W! 4 6 35S0A a/
* ;__. = _= -=. ==___=_
ile ID l)i A ati al 7d Hiv P'rep Dait, . ait(i; A:siahrical Batch,IU .! ; I t-159' L) I 0'1tl NS i)l.2' 1.1 O13 W48 (.( i;;;f;
| it~~~~~~~~~~ull
Liaiii tvligilt Fre:al Xo1wimni '[\UIl3 l I O.0 l l
CAS No. Surrogate Recoveries Run# I Run# 2 Lirnits
877-09-8 Tetrachloro-m.xylene 30% c 34-138%2051-24-3 1i i... I,1roblip)h-wi 29% 20162%
(a) Percent solids not analyzed due to sample matrix. Results reported on wet welight basis.(b) Sample appears to contain PCB congeners that do not natch any of the standard PCB patti Ms.(c) Outside control limnits due to natrix interfert- nte.
ND = Not detected MDL - Methd Detection Llmnit - Idcates an estirtated v ue_RL - Reporting Limit B - Indicates analyte found associated metbodE - Indicates value exceeds calil,win innl gi. N = Indicates prestunptive e Idence of a compound bi.
I~~~~~~~~~~~~~~~~~~~~~~~~~~~~ _ aidari
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Accutest Laboratories
Lab Sample ID: 17311-10 Date Sampled: 03/0 /04Matrli: SO -Oil Date Received: 04/1 /04Method: SW846 8082 SW84S 3580A Percent Solids: n/aI Project: Tanesco - Tanzanb
File ID DF A yalzed By Prep Date Prep atch Analytical Batci:Raun I b GG18460.D 1 04/24/04 NS 04/22/04 OP331 8 GGG556Run #2
Inidal Weight Final Volume| | ~~~~~~~Rna #1 1.018° °. tnil
877-09-8 Tetrachloro-n-xylene 30% c 34-138%2051-24-3 Decacbdorobiphenyl 26% 20-162%
(a) Percent solids not analyzed due to sample matrix. Results reported on wet weight basis.(b) PCB pattern appears to be weathered.(c) Outside control lmits due to matrix interference.
I | ND - Not deected MDL -Method Detecdon LmU I - Indicates an estimated va ueRL - Repoing Limit B - Indicates analyte found associated method blaj!.3 B E - lndlcates value exceeds calibration range N Indicates presumptive e Idence of a compound
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3 Accutest Laboratories
I Sample Summary
3 Slone & Webster Consultants
Tanesco - TanzaniaProject No: Tanesco-Tanzanla Super Region I* Sample Collected matrix CllentNumber Date llme By Received Code Type Sample ID
T7312-1 02/05/04 00:00 SWC 04/16/04 SO Oll l-ILALA
T7312-2 02/05/04 00:00 SWC 04/16104 SO Op 2-ILALA
T7312-3 02/05/04 00:00 SWC 04/16/04 SO Oil 3-ILALA
T7312-4 02/05/04 00:00 SWC 04/16/04 SO 011 4-ILALA
T7312-5 02/05/04 00:00 SWC 04/16/04 SO 0ll 5-ILALA
T7312-6 02/05/04 00:00 SWC 04/16/04 SO Oil I-K/NORTH
T7312-7 02/05/04 00:00 SWC 04/16/04 SO Oil 2-K/NORTH
T7312-8 02/05/04 00:00 SWC 04/16/04 SO OL 3-K/NORTH
T7312-9 02/05/04 00:00 SWC 04/16/04 SO Oil 4-K/NORTH
T7312-10 02/05/04 00:00 SWC 04/16/04 SO Oil 5-K/NORTH
T7312-11 02/06/04 00:00SWC 04/16/04 SO Oll 1-K/SOUTH
T7312-12 02/05/04 00:00 SWC 04/16/04 SO Oil 2-K/SOUTH
T7312-13 02/05/04 00:00 SWC 04/16/04 SO o0l 3-K/SOUTH-
Isp r t n r i b u s e i--- c-..-d o rstpe3o3__.Soil sanmples reported on a dry weight basis unless otherwise Indlcated on result page.
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Aculed Laboatories
Sample .Summay
Stone & Webster Consultdnts* . ~~~~~~~~~~~~~~~~~~~~~J b No: T7312
Tanesoo TanzanlaProject No: Tanesco-Tanzanit Super Region I
T ~~~~~~~Sample Collected Matrix CuenltNumba ODate 0 un0 By Rece04 ed Code Type SampOle ID
17312-14 02/05/04 00:OOSWC 04/16/04 SO Oil 4-K/SOUTH
17312-15 02/06/04 OO:OO SWC OVI/W SO OH 5KSOUTH .
T7312-16 02/06/04 00:00 SWC 04/16/04 SO OU 0-TEMEKE
1 17312-17 02/06/04 00:00 SWC 04/16/84 SO Oil 2-TlEMEKE
17312-18 02/06/04 00:0D SWC 04/16/04 SO 01 3-TEMEKE
1 17312-19 02/06/04 00:00 SWC 04/1 SO Oil 4-TEMKE
T7312-20 02/6/04 00:00 SWC 04/16/04 SO Oil 5-TEMEKE
l
Soil san.p;t's reporwed on a dry weight basis unless otherwise Indicated on result page.
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Accuts Laboraiorles FSample Summary
Stone & Webster ConsultantsI ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Job No: T7311Tanesco - Tanzania
* Project No: Tanesco-Tanzania Super Region 2
. ~ ~ ~~ ~Sample CoUected Matrtx CUentNumtber Date Time By Received Code Type Sampke ID
liS1^ 03/23/04 00:0 SWC 04/16/04 SO OUi TANGA-1
17311-2 03/10/04 00:00 SWC 04W16/04 So Oil O1-HALE-TANGA REGION
ii mt7IJ-*4 03/08/04 00:00 SWC 04/16/04 SO OU 2-HALE-TANGA ROGI ON
T73U-4I 03/0804 00:00 SWC 04/16/04 SO oil O-I G ICL
IT731l-5 03/08/04 00:O0 SWC 04/16/04 SO Oil 02-KIlr
3731$-6 03/03/04 00:00 SWC 04/16/04 SO 01 03-KILl
T7311-7 03/04/04 00:00 SWC 04/16/04 SO Oil MOSHI 4 KIL)
T731148 03/01/04 00 00 SWC 04/16/04 SO Oil OI-NYM KLIMANI
T7311-9 03/05/04 W:OOSWC 04/16/04 SO 01 01 (TI)-ARUSHA
I T17311-10 03/05/04 00:00 SWC 04/16/04 SO oil 02 T3) ARUSHA
* T7il311 036/04 00:00 SWC 04/16/04 SO 011 03 AR-ARUSHA
T731!12 03/O6/04 00:00 SWC 04/16/04 SO Oi1 ARUSHA4
Soil samples reported W a dry weigt bet ui otherwise Indlcaed on result page.
l | > ~~~~~Reinforcement and U pgrade of Dareff Salaam, Kilimanjaro and Aru ha Transmidssioinlll l i ~~~~~~~~and Distributtionr System l_______
l
3 APPENDIX 04: LIST OF CONSULTED PEC PLE
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Reinforcement and Upgrade of Dar es Salaam, Kilimanjaro and A usha Transmission andDistribution_System ____________
I LIST OF PEOPLE CONSULTED
TANESCO LTD1. Mr. Masasi TANESCO Regional Manager, Arusha2. Mr. N. Nsulau TANESCO Regional Manager, Kilimanjaro3. Mr. Desder R. Rutta Substations Technician Supervisor (Arusha)4. Mr. Faustine Mavelle Substations Maintenance Engineer (Kilimnanjaro, A -usha and
Tanga)5. Mr. Said Msemo Electrical Technician (Ilala)6. Ms. R. Luteganya Electrical Technician (Kinondoni North)I 7. Mr. Ngonyani Substations Engineer (Kilimanjaro)8. Mr. James Luchagula Investigations Engineer (DCPR -TANESCO HQ)9. Mr. Gadiye Substation Maintenance Engineer (Electrical Woi kshop-
Ubungo)10. Mr. Pascal C. Mwoga System Control Supervisor (Factory Zone III)11. Mr. Eli Mbuya Control Room Technician (Njiro substation)12. Mr. Rahim Mziray Control Room attendant (Unga Limited substation)13. Mr. John Shadow Control Room Technician (Kiyungi)14. Mr. Muki Control Room Technician (Kiyungi)
OTHER INSTITUTIONS15. Mr. Charles Swai Vice President's Office - Division of Environment 'DOE)16. Mrs. Kisanga Vice President's Office - DOE17. Ms. A Madete Assistant Director DOE - Vice President's Office18. Mr. J. R. Kombe Assistant Director EIA - NEMC19. Mr. Edward Kihunrwa Ministry of Land and Human Settlement- TRC me ber20. Mr. Julius Shilungushela Land Use Comunission MLHS - TRC member21. Ms. Agness Mwakaje Institute of Resource Assessment UDSM - TRC M .mber
* 22. Mr. Jeko Sanga Resident near Msasani Substation23. Ms. Jawa Elias Kisapile Security guard Factory Zone II substation24. Mr. G. K. Mkeni Ward Executive Secretary Engutoto- Njiro
NJIRO - ENGUTOTO WARD RESIDENTS - MIEETING HELD ON 25 "h NOVEMBER 2( 04
* Agenda:> Public information about the project i.e. the construction of new transmission line from Kiyungi to
Njjiro Substation and rehabilitation of the Njiro SubstationI '> Receiving commnents and concenis about the proposed project from people along the newproposed line and around the substation
I LIST OF MEETING PARTICIPANTS1. Lobulu Siroeti 13. Zainabu Sindato2. Abdul Majid Ahmed 14. Petro KameteI 3. Innocent Zelothe C/O Makundi Boaz 15. Lawrence Memruth4. Elisipha Loth 16. Lengai Namuriri5. Monika Kisiri 17. Japhet Silas6. E. A. Mollel 18. Lubanguti Long'ams
* 7. Elisha Philipo 19. Felex Saimkwa8. Paul Kamete 20. Marko Simon9. Philipo Memruthi 21. Stephano MerinyoI 10. Jacksoni John 22. James Memnruthi11. Herniany Richard 23. Obadia Kisiri12. Khalid Issa Mohamed 24. Abdallah Ismail
Reinforcement and Upgrade of Dares Salaam, Kilimanjaro and usha Transmission andDistribution System
I 25. Erasto Meleji 40. Ramadhani [brahi Lesian26. John Abrahamu 41. Stephen George IV ollel (Councilor)27. Michael Memruthi 42. Lothi S. Kola (C airperson Hsamlet Cl)28. Bemadi Memruthi 43. Elizabeth Mtowa Chairperson Hamlet C2)29. Edward Sikon 44. George K. Mkeni WEO- Engutoto)30. Joseph Memruthi 45. John Lazimah - E iv. Engineer TANESCO HQ31. Meshack Shangai 46. Mansur Hamduni Env. Engineer TANESCO32. Mohamed Abrahaman HQ33. Ezekiel Shangai 47. Dr. Agnes Mwak e - IRA UDSM -34. Elias Memiruthi TRCM mber35. Estomii Meseya 48. Mr. Julius Shilung ushela - MLHS - TRC36. Magnet Steven Member37. Mrs Lukenelo R. Mbaga 49. Mr. Edward Kihu krwa - MLHS - TRC38. Philipo Eliapenda Member39. Coelestina Kazaura
MCHIKICHINI RESIDENTS - MEETING HELD ON 19"' January 2005Agenda:> Public information about the project i.e. construction of new transmission line from Ilala Substation to Kurasini
Substation and rehabilitation of Ilala Substation> Receiving comments and concerns about the proposed project from people along th new proposed line and around
1ll 3 Reinforcemenlt an d Upgrade of Dar es Salaam, Kilimanljaro and Ar sha Transmission
l l l \ _ *~~~~~~~~nd Distribution System _________
| ~~~~~APPENItIX 05: Training Nleeds
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l l 7$,, Reinforcement and Upgrade of Dar as Salaam, D. limanjaro and
Arusha Transmission and Distribution System
IENVIRONMENTAL UNIT TRAINING NEEDS UNDER THE W RD BANK
PROJECT
ENVIRONMENTAL MANAGEMENT HEALTH AND SA.7ETY
l AN OVERVIEW PLAN AND BUDGETFINANCIAL YEAR 2005 - 2006
1.0 General information* * It is proposed that some amount of money earmarked for the project s ould be used for
capacity building purposes. The training should be focused in environm ntal, health andsafety management. The purpose of the training should be to strengt] en TANESCO'senvironmental health and safety management performance in the audite substations andstrengthening the capability of environmental unit to carry out environm ntal audits, EIAand monitoring studies. This will also ensure that environment is gi en appropriate
l ~~consideration in all substation operations, and development.
3 |[It is proposed that the environmental unit participate in the courses orgar *zed by the Eastand Southern African Management Institute (ESAMI) in the area of envi onmental auditI, *and environmental management. The substations personnel should atte d a tailor madecourses that will focus on the environment, health and safety and work p ocedures usingreputable resource persons.
2.0 Implementation PlanIn the year 2005/2006 financial year, the following should be done:
3 | P Capacity building through training (short term environmen al courses) of- Environxnental Unit staffI.m P In house seminars for capacity building on Environmental, He lth and Safety
awareness raising and work procedures to all TANESCO staff working in thesubstations (operating and maintenance technicians and engineer)
3.0 The courses and the estimated costsThe estimated implementing costs are shown in the table below:
S/N Proposed course/ training Number of costsParticipants Course Dates (USD)
2 Programme (Harare) (4 weeks) 18,800ESAMI Programme 2 2005/6 _ l l l
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l*+ Reinforcement and Upgrade of Dar es Salaam, K limanjaro andArusha Transmission and Distribution System
AnticpatedS/N Proposed course/ training Number of costs
Participants Course Dates (USD)
Environment, Health &3 Safety Management and (2 weeks) 33,000
Substation work 30 2005/6procedures seminar
I TOTAL 61,200
4.0 Equipment and toolsMaterials and equipment requirements for smooth implementation cf the proposedEnvironmental Monitoring Program (EMP) and audits are as follows.
CostsS/N Equipment/Tool Nos. (USD)
1 Lap top computer 2 4,0002 Colour Laser Printer 1 2,500
3 Digital camera 2 1,600
TOTAL 8,100
l The total amount required for the year 2005/2006 is USD 69,300.
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Reinforcement and Upgrade of Dar es Salaam, Kilimanjaro and Arisha Transmissionand Distribution System
1.1 GENERAL ................................................................... ...... vi1.2 PREVIOUS WORK ................................................................ ...... Vi
2.0 PROJECT PURPOSES AND OBJECTIVES ................................................................... viii2.1 PROJECT PURPOSE ............................................................... ...... viii2.2 PROJECT OBJECTIVES .............................................. .................. ...... viii
3.0 PROJECT ACTIVmES, RESULTS AND MAIN ASSUMPTIONS .............. . .................. ix
4.0 WORK PLAN AND METHODOLOGY .......................................................... .......... xI 4.1 GENERAL APPROACH ...................... .............................................. x4.2 DRAFTING OF CORPORATE ENVIRONMENTAL POLICY .................... .................... x4.3 PLANNING FOR FULFILLING THE COMPANY POLICY ........................ ......... X ......... xiI * 4.4 IMPLEMENTATION OF EMS ................................... ; .................. xii
5.0 PROJECT IMPLEMENTATION ................ ..... xiii
5.1 GENERAL ................ ..... xiii5.2 ORGANISATION AND ADMINISTRATION ................ ..... xiii5.3 TRAINING ................. ...... xv5.4 EQUIPMENT AND MATERIALS ................. ...... Xiv
6.0 BUDGET AND SCHEDULE. .................. xv6.1 BUDGET .................. xv6.2 SCHEDULE ................. xv
l ES1: Introduction TANESCO is a public power utility in Tanzania re ponsiblefor generation, transmission, distribution and sale ofelectricity. Due to the nature of TANESCO's activiti s, there
* are always impacts on or from the environme , whichneed to be considered during operation and dev lopment
3 decision-making processes.
There has been growing concern both nation lly andinternationally for full incorporation of envir nmental
I protection in decision-making processes for Economicactivities. The approved National Environment il policy(NEP) and passed of the Environmental Managen ent Act,2005 (It is unified environmental legislation to eal withthe environmental issues). This Act is expected to becomeeffective any time in 2005. All these require everydeveloper to achieve sustainable .developm nt thatmaximises the long-term welfare of both the pre ent and
* future generations of Tanzanian population.
In order to comply with relevant legal and rE gulatoryrequirements, TANESCO is in process of establi hing itsown Environment Management System (EMS). he EMSwill ensure that environment is given ap ropriateconsideration in all company development activi ties and
3 decision-making processes.
ES2: Objectives The following are the main project objectives:* To develop an appropriate corporate envir nmental
* policy, objectives and targets* To develop a system that will ensure that there is
full integration of environmental considerati ns in all
I TANESCO's work and decision-making pro esses.* To establish a system that will ensure ontinual
improvement of the environmental manag ment inTANESCO.
* To demonstrate to public that TAN SCO- is
l protecting the environment in carrying out itsactivities.
Financing It is proposed that part of the funds to be provid d by
I The World Bank to finance the Transmission andDistribution Rehabilitation project (Dar es salaamKilimanjaro and Arusha) is to be used also to fina ce a
I process of establishing the EMS in Tanzania Elect icSupply Company Ltd (TANESCO).
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ES4: Budget The total project budget is Five hundred nd Ninethousands six hundred and twenty eight Unit zd State
* Dallas (US$ 509, 628) spread over a span of 5 y ars. It isanticipated that about US$ 257,520 will be utilise in phaseI (first two years) and US$ 227,840 in phase II (the lastI three years). A contingency of US$24,268 as beenincluded in the budget to cater for unforeseen ex enditure
* and escalation.
ESS: Duration Five (5) years Phase I- drafting of company envir nmentalpolicy. Phase II Implementation of the envir nmentalpolicy
ES5: Implementers The project will be coordinated and execute by theTANESCO'S Research and Development Departm nt underEnvironmental Section with assistance of Di ision ofEnvironment (DoE) and National Envir nmentalManagement Council (NEMC)) and individual outsideTANESCO will be fully utilised in conducting n eetings,seminars and education campaign to TANESCO e iployees,3 local and foreign environmental consultant wherenecessary. The Environmental Section, which is nder theDirectorate of Corporate Planning and Research, as bothcapability and experience to carry out the work.
ES6: Project The following are the expected main project res Its:Results * Approved company environmental policy
* * Environmental awareness to emplo ees tounderstandthe environmental implications of their ac ions
* * Changed organisational culture and attitud towardsenvironmental decision making processes.
* An improved environmental accountabilityI . An effective environmental inf )rmationmanagement system
. An effective and evolving EMS covering al aspectsI of
The worldwide evolutions of stringent environmental regulations and pub ic awarenesshave forced many organisations to integrate environmental managem nt into theirI development activities and decision-making processes. Companies ha e introducedenvironmental management policies, which encourage preventive measu es in order tominimise corrective environmental costs, loss of public image and penal ies.
Achieving sound environmental performance requires organisational con mitment to asystematic approach of addressing environmental obligations through EnvironmentalI Management system (EMS). Environmental Management System (EMS) 1 i defined as asystem which includes organisational structure, planning of activities, re ponsibilities,practices, procedures, processes and resources allocation for developing, i plementing,achieving, reviewing and maintaining the environmental policy.
An environmental management system form a framework within which to organise andl l plan activities required to achieve environmental goals and objectives of he company.
It comprises guiding principles, policies, and directives, operational g idelines andprocedures that provide a structured format by which operations can be riaintained. ItI is internationally accepted as a common sense approach to ensure that rganisationalenvironmental liabilities (and risks) are properly identified, minimised an managed.
l TANESCO is a public utility, the only main company so far in Tanzania r sponsible forgeneration, transmission, distribution and sale of electricity. The comp ny owns andoperates power systems comprising of both hydro and thermal power stations andI associated structures such as transmission & distribution lines, substat ons etc. Thepower system network is distributed throughout the country and continue to expand tomeet ever-growing power demand. In the future, because of technologicaladvancement and increase in demand, TANESCO may resort to other sour ces of energysuch as coal, wind, solar etc.
I Due to the nature of its operation and development activities, there are in pacts on andfrom the environment, which have to be taken into account at all stages o such works.Apart from generation, transmission and distribution, TANESCO i teracts withenvironment through non-core services such as transportation of eq ipment andmaterials, fumes, disposing of old equipment and papers etc. In doing its development
I 'ISO 14004: Environmental Managemcnt Systems-general guidelines on principles, systcms an supporting techniques
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and operational obligations, TANESCO may therefore cause environmen al impacts toair, water, land, natural resources, flora, fauna, humans and ecosystem. A nex I, showsthe linkage between TANESCO activities and environmental impacts.
TANESCO, like any other developer is obliged to adhere to the principles f sustainabledevelopment by ensuring that environmental issues are not outweighed by economicpressures. For that matter TANESCO has been spending substantial reso rces on EIAsand monitoring of the projects impacts on or from the environment.
There are several set backs to the present TANESCO approach of a dressing theenvironmental issues. Currently TANESCO has no established system fo dealing withenvironmental matters within the company. Furthermore, the compan has neitherenvironmental policy nor environmental objectives. More usually, environmentalconsiderations are integrated in donor-funded projects, mainly in the lanning andI construction phase. Unless there is a direct environmental problem hin ering powergeneration or there is a donor support, TANESCO does not bother mu h about postI construction phase environmental problems.
As a remedy to the above set backs, TANESCO is in process of es ablishing anEnvironmental Management System (EMS). The EMS will form a frame ork throughU which all environment matters will be fairly addressed and integrated i all companybusiness, services and products.
l In the Southern Africa Power Pool (SAPP), of which TANESCO is a nember, theEnvironmental subcommittee (ESC) has been formed to advise the rnanagementcommittee on environmental issues, keep abreast of regional and world i sues related
l1 *to environmental quality and also liase with their respective governmen s on matterspertaining to environment. Some utilities in the region such as ESKOM o South Africaand ZESCO of Zambia already have their own Environmental Managem nt System toI take care of the environmental matters and are in good position to cope well with thenew developments. The Environmental subcommittee (ESC) of the Sou hern AfricanPower Pool (SAPP) has conducted environmental workshops with the aim f improvingI environmental awareness among the regional power utilities. TANESCC as an activemember in the Southern African Power Pool (SAPP) has to keep pace with other
l regional utilities by developing and implementing EMS.
l1.2 PREVIOUS WORK
TANESCO recognised the importance of integrating of environmental con iderations inits activities in 1996 when it formally accepted a proposal for an ENV RONMENTALI MANAGEMENT SYSTEM prepared by the consultants for the PFRP, IVO- ORPLAN. InApril 1996, TANESCO in collaboration with NEMC organised a workshop on"ENVIRONMENTAL MATTERS RELATED TO POWER PRODUCTION IN T NZANIA" at
* Hale. At this workshop the then proposed TANESCO Environmental ManagementSystem (EMS) was discussed and its implementation recommended.
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TANESCO's Field Studies Unit by then now the Research and Developme t Department
l in cooperation with IVO INTERNATIONAL of Finland prepared a de ailed projectdocument entitled: DEVELOPMENT OF ENVIRONMENTAL MANAGEMENT SYSTEM FORTANESCO in 1997 - 99, for soliciting of funds for implementation of EM . The project
I never started, because 1996 was a bad financial year for TANESCO an FINNIDA didnot approve the requested fund.
I Since then TANESCO tried to solicit funds from different donors and inter ally but up todate no substantial amount of fund is provided. In 2001 during the Kiha si Spray Toadsaga the Lower Kihansi Environmental Project (LKEMP) financed by \Norld Bank set
I aside US$ 65,000 to help TANESCO in the process of establishing its own EMS. So far astudy tour to ESKOM and ZESCO for 5 staff 1 from Kihansi Power Pla t and 4 fromDirectorate of Corporate Planning and Research has been done, with ma n objective of
I gaining a knowledge and experience on establishing and implementing an EMS in powerutilities.
l This proposal therefore include foreign assistance, be it finance or t chnical. It isproposed that financing is to be covered by the World Bank thro gh proposedTransmission and Distribution Rehabilitation Project and the technica part will be
I carried out by TANESCO staff in collaboration with local and foreign nvironmentalconsultants as far as necessary. SAPP member utilities that have EMS r lay be visited
* and consulted for advice.
2.0 PROJECT PURPOSES AND OBJECTIVES
* 2.1 PROJECT PURPOSE
l l ..... The main purposes of this work are:* To prepare the company environmental policy and set objectiv s and targets* To establish a system within TANESCO that will ens re planning,
implementation, reviewing and continual improvement (i.e. E S).
2.2 PROJECT OBJECTIVES
The main objectives of this work are:* To establish a system that will ensure continual improve nent of the
environmental management in TANESCO.* To develop and establish an effective EMS within TANESCO
* * To ensure that there is full integration of environmental consid rations in allwork processes, planning and execution of all TANESCO activities.
* To demonstrate to public that TANESCO is protecting the environm nt in carryingout its activities.
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3.0 PROJECT ACTIVITIES, RESULTS AND MAIN ASSUMPTIONS
3.1 PROJECTACTIVITIES
l The following are the main project activities:
PHASE I. Review of the existing environmental management practices TANESCO,
legislative and regulatory requirementsa Review of the interaction of TANESCO activities and envir :nment and
I identification of significant environmental effects. Drafting of Corporate Environmental Policy* Setting Objectives and targets, consistent with the environmental policy, which
I quantify the commitment to continual improvement in environmentalperformance over defined times scales
* Definition of responsibilities to ensure that control, verification, rneasurement
I and testing within the company & parts of the company ar adequatelycoordinated and effectively performed.
lI PHASE IIa Carrying out environmental awareness meetings and seminarsa Developing procedures for monitoring and auditing to be carried ut
I * Developing a system of records control to demonstrate complia nce with therequirements of the environmental management system
* Developing procedures to communicate with interested partie on matters
I relating to TANESCO'S environmental management, policy and p rformance.* Facilitate planning, control, monitoring, auditing and review activi ies to ensure
that the policy is complied with and that it remains relevant and capable of
I evolution to suit changing circumstances.. Initiate implementation of EMS
I - 3.2 PROJECT RESUL TS
l - The following are the expected results of the work:* Approved company environmental policy and clear objectives and targets* Environmental awareness to employees to understand the e vironmental
I implications of their actions and have skills to make the right deci ions* An effective and evolving EMS covering all aspects of TANES O business,
products and servicesI * Environmental Management implementation structure and progra s* Changed organisational culture and attitude towards environme tal decision-
making processes.* An improved environmental accountability
l An effective system of planning, monitoring, auditing and reviewing ofenvironmental activities
* An effective system of preventing non,compliance. An effective environmental information management system
l . Appointed staff who is capable of dealing with environmental ma tters
1 3.3 ASSUMPTIONSFor smooth execution of this work and achieving the intended results, the followingassumptions have been made:
. The work will continue to enjoy full support from TANESCO top t anagement* * Appointed and/or recruited staff will be capable and interested in :his important
I field* World Bank to finance the establishment of EMS* Research and Development Department under Environmental Unit to co-ordinate
and execute this work
4.0 WORK PLAN AND METHODOLOGY
4.1 GENERAL APPROACH
In recent years, several organisations have developed, or are developing guidelines forEMS. These include the British Standards Institute, Canadian Standards Association,European Community ('Euro-Audit'), the Canadian Chemical Produce s Association
* (Responsible Care Program), the Canadian Petroleum Association (Envirc nmental Codel X of Practice) and the International Standards Association (ISO). Internatic nal Standards
Organisation (ISO) has developed a series of environmental manage ment systemstandards, which have been adopted by more than 100 countries worldw de as nationalstandards and have proved to be successful.
In establishing and implementing TANESCO EMS, recommendation contai led in the ISO14000 series will be followed, i.e. preparatory review, drafting cf policy and
- implementing the policy. Phase I of this work will consist of all activities f r establishingthe EMS i.e. preparatory review, drafting of the policy and planning for fulfilling thepolicy. Phase II will be an implementation phase in which all planned ac tivities will beexecuted.
4.2 DRAFTING OF CORPORATE ENVIRONMENTAL POLCY
Because TANESCO does not have a formal environmental management sy stem, the firstI step will be to establish the current position with regard to the environmental
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management by means of a preparatory review. The preparatory revie will identifythe environmental aspects arising from the organisation's past, existing r planned ac-tivities, products or services. It will also examine all existing environmental managementpractices and procedures, legal requirements and previous incidents and non-compliance. The review will establish the main impacts due to TANESCO activities andI the current means of dealing with them. This will form a base for i entifying thepriorities to be addressed in the environmental policy. Few field trips o generatingstations, transmission and distribution lines, on going projects etc. wil be made toI confirm results of the review and to collect additional reports and inforn ation.
This work will involve drafting of an appropriate corporate environmenta policy that isl current and consistent with overall corporate priorities, managemen philosophy,
practices and environmental legal requirements and obligations. It will in olve utilisingresults from the preparatory review and current guiding principle for impl mentation ofI EMS. Since formulation of the corporate policy is the heart of the whole exercise, thethree months time will be allocated to the management to read and con ment on thedraft environmental policy. The final policy statement and management commitment1 statement are expected to be ready in three months time after receivi g commentsfrom management.
l Environmental Unit will do the preparatory review of drafting of corporate nvironmentalpolicy in collaboration with local or foreign consultant. Consultatio with otherstakeholder's i.e. government environmental bodies, NGO's, affected pe ples on someissues might be necessary.
1 l 4.3 PLANNING FOR FULFILLING THE COMPANY POLICY
For fulfilling the environmental policy, appropriate corporate environmen al objectives
I and targets will be established and environmental programs (environr ental qualitycontrol, monitoring and auditing etc.) documents prepared. The ways f integratingenvironment management into the company structure will be cha ed out andI responsibility clearly defined. Approval of the management is required a this stage tomake sure that the proposal is acceptable and is not in any way conflic ing company
l structure expansion plan.
Parallel to preparation of the environmental programmes, training nee s programs;schedules and budget will be established. It is expected that the traini g will targetI three groups; the management, Research and Development (Environme tal Unit) andgeneral staff, each category receiving training according to the role each roup plays in
l the implementation of EMS.
Another important task to be accomplished in this phase is prepa ation of theenvironmental management system documentation, communication and r cords controlsystems. A two-way interactive information flow and reporting system, Which involve
input from each and every staff at his working station meanwhile allowini 1 appropriatedata collection and analysis, interpretation and decision-making, will be c attered out.
For smooth implementation of the EMS, the training of management and key researchand development staff in environmental management will start in thi phase and
I extended through the implementation phase is important. Details on the trainingrequirements are presented in section 5.
I A final draft EMS report will be submitted to the management for approval at the end ofthis phase. The draft report shall contain the corporate environmental polic y, objectives,targets, budget and schedule for implementation.
Planning and drafting of the environmental programmes will require inputs fromdifferent experts. It is therefore expected that in this phase external exp rtise, mainlyI from UDSM, NEMC, DoE and appropriate NGOs will be required. The progr ammes needto be discussed in the workshops and comments incorporated prior to th eir adoption.
4,4 IMPLEMENTA TION OF EMS
l The implementation of the EMS will consist of all activities that will facilita e integrationof environmental policies and programmes into TANESCO strategic plans, ractices andactivities. The objective of this phase will be to align TANESCO structure employees,I systems, strategies and resources allocation towards achievement of companyenvironmental objectives. The main activities to be carried out under this phase are:
. Training, educating and motivating employees to conduct their a tivities in anenvironmentally friendly manner and aiming at achieving company e rvironmentalobjectives, goals and targets. This will involve conducting ei vironmentalI meetings and seminars for disseminating education and awareness to TANESCOpersonnel in the head office and in the operation regions and distri cts, all hydro
3 and thermal systems and transmission line teams around the cour try.
. Follow up of allocation of appropriate human, material (facilities ani i equipment)and financial resources essential to the implementation of companyenvironmental policy and achievement of objectives.
l Follow up of integration of EMS into existing overall managemen system andpractices, e.g. harmonising policies, influencing resources allocatior 1, operationalcontrols and documentation, information system, training and development,appraisal system, quality control, measuring and monitoring and co munication
J and reporting. Assisting to balance and solve conflict between e ivironmentalmanagement and other business objectives and priorities.
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* Follow up of effectiveness of environmental accountability along responsibilitylines, organisation structure, work processes and assignment of r sponsibilitiesto employees.
* To establish a process for communicating and reporting of nvironmentalI activities of the company in order to raise awareness to employees, ommunicatecompliance and demonstrate management commitment to environ nent. For thispurposes the following publications will be prepared, rganisation'senvironmental profile, environmental policy objectives and targets andenvironmental performance evaluation.
5.0 PROJECT IMPLEMENTATION
1 5.1 GIENERAL
* . TA TANESCO'S Research and Development under Environmental Unit will c -ordinate allactivities for development and implementation of EMS. Services of local and foreignconsulting firms and competent institutions and bodies such as Univer ity of Dar EsSalaam (UDSM), DoE, NEMC, NGO's and individuals will be utilised to pro ide expertisenot available in TANESCO and where outside opinions on specific issues re required.
It is anticipated that Services of local and foreign firms, NGOs, Division of EnvironmentI (DoE) and National Environmental Management Council (NEMC)) and indiv duals outsideTANESCO will be fully utilised in conducting meetings, seminars a d educationcampaign to TANESCO employees. This approach has many advantages; he main onesbeing strengthening of local capacity, demonstrating due diligence and xposing theTANESCO EMS early to criticism.
l The whole project period is 5 years; the first 2 years will be utilised for dra ting the EMSwhereas the last 3 yrs will be for initiating of its implementation. The d aft final EMSwill be concluded by a review report explaining the achievements, setba ks, and what
* need to be done to improve the EMS. The action plan and time-activity chedule arepresented in Annex II and III, respectively.
5.2 ORGANISA frONAND ADMINISTRA TiON
I The department of Research and Development, which, is under Directorat of CorporatePlanning and Research (DCPR) with the help of Environmental sectio will do theexecution of this work. The department is headed by a Manager and Chief engineer and
*- it has another five informal sections; hydrology, survey, engineering geology andgeotechnics and hydropower engineering The main tasks of Research and evelopmentdepartment, with others is dealing with environmental issues related to t e company'sactivities and to undertake and performing 'pre-feasibility and feasibilil studies for
TANESCO's power projects, monitoring of company's civil structures, s pervision ofconstruction works and. Over the years a department has acquired outstandingI capability in terms of human resources, experience, skills, equipment a d materials.The organisation chart of Research and Development department is shown as Annex I.
i | A department of Research and development has resourceful personnel wit knowledge,expertise and experience for execution of the work, but some addition I training isrequired to strengthen their capability. The experts have had close coo eration withforeign and local consultants.
Currently department of Research and Development with the help of envirc nmental unitI is, on behalf of TANESCO, coordinating and carrying out the auditing o existing 18substations to be rehabilitated and upgraded. Also it carries studies of e vironmentaland social impact assessment of transmission and distribution rehabilitatic n project forI Dar es Salaam, Moshi and Arusha to be financed by World Bank. It is Ilso workingclosely with Lower Kihansi Environmental Management project (in coo eration withNEMC). Further it does environmental planning and monitoring pro rammes fortransmission and distribution system.
5.3 TRAININGI Essential to the functioning of the EMS is the staff awareness of environme tal issues toenable them to carry out their daily activities appropriately. It is therefore mportant toconduct relevant training to various groups depending on the role each g oup plays inthe implementation of EMS.
As stipulated in the previous proposals, an environmental awarenE ss seminar,I workshops and training to the management and the trainers is a prereq isite for thesuccessful implementation of the EMS in TANESCO. Short-term nvironmentmanagement courses abroad are recommended for the TANESCO manac ement team
* and environmental unit experts for raising awareness. It is anticipated hat coursesconducted by IHE Delft, Holland, IMAC and ACP Institutes Manzini Swazil nd, ESAMI,ITC Holland, ICH of Norway are of meaningful and affordable. TANESCO s ould ensurethat executing staff, management and even operational staff attend thes courses.
Trainers and facilitators need to be equipped with appropriate skills an knowledgeeither in Tanzania or abroad. The best option would be to have a trip in the region suchas South Africa and Zambia or other SAPP countries to learn from their ex erience. Forstaff who are expected to be permanently engaged in environmental issue s, long termcourses abroad are recommended.
5.4 EQUIPMEHTAND MA TERIALS
Through TANESCO's major projects namely; PFRP, Kihansi and Power VI, Research andDevelopment department has acquired equipment for field studies and offic works. The
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available equipment are enough for carrying out site investigatior s for dams,transmission lines, substations and shallow foundations. Also water qualit analyses kits
I have been acquired. But due to the age and new technology some of th equipmentslike Decibel Meter, Air quality equipment, PCBs test kits, GPS, Digital camera and
l Equipments to measure radiation from electromagnetic waves have to b bought.
Recently there is growing laboratory testing capacity in the country. Te ting facilities
available at UDSM, Maji, materials Ujenzi, EAMRDC and elsewhere wil be used for
testing the samples.
3 6.0 BUDGET AND SCHEDULE
6.1 BUDGET
l The budget for developing and initiating implementation of the EMS s about fourhundred and seventy thousands US$ (US$ 509,628) as shown on Anne II.
6.2 SCHEDULEThe development of the EMS will take about 2 years and initiation of the in iplementation
l will take about 3 years. The schedule is presented as Annex III.
= Activity Action Participant Duration ResultsFormulation of Develop environmental management programmes Env. Section 6 months Specific environmental objectives & targets.plan to fulfil the to achieve objectives and targets -Environmental plans and managementenvironmental Establish procedure to identify, access, programmes with measurable performancepolicy understand all legal, regulatory and other indicators and conditions of reviewing and
requirements revising.
Setting of overall goals for environmentalperformance identified in the environmental policy
Formulation of -Identify the human, physical and financial Env. Section 4 months Human, physical (facilities & equipment) andimplementation resources for implementing EMS. financial resources and needs forplan (aligning - Establish Strategy to obtain the required resource implementing EMS.people, systems, from coy resource base and outsidestrategy,resources and -Establish plans and programs to integrate EMS in Plans to integrate policy and practices intostructure towards the company management system (sub-unit each business as an essential management atachieving policies, resource allocation, operation controls & all levelsenvironmental documentation, information and support systems,objectives) training and development, organisation and Established chain of command so that
accountability structure, measuring and monitoring employees at all levels are accountable withsystems communication and reporting etc.). their scope of their responsibilities.-Establishing effective accountability andresponsibility-Develop plans for disseminating Environmental Identify knowledge, skills and training needsawareness and motivation t to employee to achieve environmental objectives.
-Identify employees knowledge, skills and trainingrequirements to achieve environmental objectives Review of personnel selection and
recruitment targets and development of skills.
-Establish process to report internally and externallyon environmental activities
Plan a system to manage, information identification,storage, retrieval, and dissemination.
Activity Action Participant Duration Results5. Establish a system Establish a system for measuring actual aEnvSection 3 months
of monitor and performance against the stated objectives andevaluate targets.envaluamete l tgesA system to ensure that the company isenvironmental -Establish a system for evaluation of compliance performing in accordance with statedperformance with relevant legislation and regulations environmental management requirements
-Establish a system to ensure reliable data areachieved-to establish indicators which are objective,verifiable, reproducible, and consistent with policy,practical, cost-effective and technologically feasible.-Establish a system for corrective and preventiveactions?
6. EMS records and Establish effective EMS records/information Env. Section 3 months Effective management of records (i.e.information management identification, storage, retention andmanagement Establish system for environmental management disposition of EMS documentation and
system for environmental management ~records.system audits -Develop a procedure for receiving,documenting and responding to relevant informationand requests from interested parties.
7. Implementation of Conducting seminars, environmental meetings Env. 3 yrs Systematic approach of addressingEMS NGOS and implementing items 2-6 above Section/NEMC environmental issues (EMS)
,UDSM_8. Review of the Establish areas to be reviewed Env. Unit 3 months Evaluate a system for suitability and
environmental Set intervals for conducting a review /with NEMC, effectiveness.management Establish experts involved in the review UDSM, NGOS Feedback mechanism to ensure that planning,system and and construction and operational activities andimprovement individuals programs are proceeding as required and
EMS is functioning the way it has been_ _ _ _ _ _ _ _ _ ___ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ .L _ _ _ _ _ _ _ _ _ I _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __de sig n e d
*Note: Some activities on the action are overlapping and will be carried out concurrently.
I
l - -r -
Annex 1: Organisation of the Department of Environment in the Directora e ofCorporate Planning & Research
I DIRECTOR CORPORATE PLANNING & RESEARCH
Manager Research & Development Manager Corporate_________________________________ _ | P lanninq
| Chief Research & Investigations Chief Environmental| Engineer/Officer
Senior Environmental Senior Enviror mental Engineer/OfficerEngineer/Officer Environmen al Impact Assessment
i ~~~~~~~~Rcinrorccmeut and Upgrade of Dar es Salaam, Kilimanjaro and At usha Transmissionand Distribution System_________
l
3 APPENDIX 07: TERMS OF REFERENCE (ToR)
l
- -- -~~~~~~~~~~~~~~~~~~~~~~
Distribution and Transmission Rehabilitation ProjectI Environmental Audit
Terms of Reference (TOR)
1 | BackgroundTANESCO and the International Development Association are prepari g a distribution
* l rehabilitation project component as part of the Songo Songo Gas Development andPower Generation Project (Credit 3569-TA). This component aims to improve thereliability and the quality of power supply to the consumer. The projec will achieve the
* | following objectives:o Reducing the duration and frequency of power interruptio so Improving voltage conditions at consumers' premiseso Reduction of power system losses
The proposed project-would consist of rehabilitation of 18 existing subs ations in Dar es
Salaam, Arusha and Moshi as follows:
Dar es Salaam Arusha1. Oysterbay 11. Mount Meru2. Mikocheni 12. Unga Ltd.
3 l 3. Msasani 13. Kiltex Ltd4. Factory Zone I 14. Themi5. Factory Zone II 15. Njiro
3 | 6. City Centre7. Factory Zone III Moshi8. Sokoine 16. Boma-Mbuzi
I | 9. Kurasini 17. Lawate10. Ilala 18. Kiyungi
Furthermore, there will be a repair and upgrading of the 11/33 kV distr bution systems Iin Dar es Salaam, Arusha and Moshi. A summary of the physical cor ponents of the
I l project is provided in the table below.
Physical Description of Rehabilitation of Distribution Facilities 3* Supply and Installation of 22 additional 15MVA, 33/llkV transformers to relieve the verload in existing I
substations;
I * Supply and installation of about 33 33/11lkV circuit breakers; and some 124 11kV ci cuit breakers with
associated switchboards;
I * Installation of one 50MVA 132/33kV transformer with a circuit breaker at Kiyungi subs ation.
*Materials and equipment for repair/upgrading of the distribution systems which make provision for the
following: Reconductoring; Protection Systems; Autoreclosers Auto load break switches; Scada
(distribution system); Sectionalizers; Boosters; Lightening protection; Distribution Transformers; New
33/lkV lines; Statistical Metering. __l
I; I'age I ofr3
IIIII
Objectives of the Environmental AuditThe objectives of this environmental audit are:
o To identify present environmental impacts and other environme tal inadequacieson existing facilities. These include pollution, inadequatE environmentalmanagement practices, and occupational health and safety issu s in the facilitiesto be rehabilitated
o To determine areas that need remedial actions and their potential costsl necessary to bring these facilities into compliance with World Bank Safeguard
Policies, ando To recommend actions to improve and strengthen TANESCO' environmental,
health and safety management
Guiding PrinciplesI A consultant will carry out a comprehensive Environmental Audit (E ) in accordancewith and be fully responsive to IDA's "safeguard" operational policies nd according tothe existing laws and guidelines of the land (Tanzania). The audit report shall besubject to review by a Multi Sectoral Technical Review Committee te m (TRC) underthe supervision of the Nationai Environment Management Council (NEMC). Uponacceptance by the TRC the audit document will be submitted to IDA i support of theproposed project.
3 Scope of WorkThe environmental audit will focus on existing facilities to be rehabilitate d. The activitiesof the audit will include:
l o Review of Tanzania's relevant existing and pending environm ntal legislation,standards, and permits, as well as the country's occupational h alth and safetylegislation I
o Review the relevant policies of the World Bank and its environme tal, health andoccupational health and safety guidelines, including the Pollution Prevention andAbatement Handbook (Electric Power Transmission and Dist ibution)l
o Review all relevant existing in-house documentation, includ ng compliancerecords and historical information
o Meetings and consultations with TANESCO's facility manageme t and relevantstaff, relevant government and municipal/town authorities, environmentalexperts, people leaving around the subject substations and other bodies deemed
I necessaryO Perform visual inspections of the substation sites and eq ipment to be
rehabilitated
o Identify all environmental (e.g. presence of hazardous wastes such as PCBs,water pollution, waste management practices, etc.) and occupati nal health andsafety concerns related to both, past and ongoing activities in th facilities to berehabilitated
This can be found on the World Bank website www.worldbank.org/l I'age 2 of 3
o Assess hazards or risks for local communities and the adequacy f procedures forwarning and emergency responses (consult with commu iity leaders, ifappropriate)
o Prepare a prioritized list of concerns (i.e. high, medium, low) rel ted to past andongoing activities in the facilities to be rehabilitated
l l C Provide recommendations and cost estimates for the implen entation of therequired remediation action plan (work) and clean-up measur s for both pastand ongoing environmental and health and safety concerns in t e facilities to be
l rehabilitated in relation to both, Tanzania and World Bank policie and standards
o Identify the capacity to monitor the execution of the remedia ion action plan
l within and outside TANESCO and training needs to nsure efficientimplementation. of the Environmental Management Plan
1 O Develop Environmental Management Plan for these substatiori which may befurther developed to be adopted to other substations
Reporting RequirementsThe draft environmental audit report should be prepared within 6 week from the dateof study commencement (receiving the approved ToR from NEMC). he draft reportshall be submitted to NEMC and the World Bank for review and c mments. The
I comments shall be received within 5 weeks from the date when the dr ft reports weresubmitted. The final report, which includes the comments from NEMC and the World
* Bank, should be finished after one week from the date when the final comments areI | received. The report should be written in English, and should incluc e an Executive
Summary and should contain relevant maps. The final draft report w il be final onlyafter the acceptance and approval by the Government of Tanzania ( EMC) and theWorld Bank.Il The report should contain a prioritized remediation plan if any, an EnvironmentalManagement Plan (EMP) and the associated costs. The report should lso define the-institutional responsibilities for the remediation, implementation of EMP, nonitoring and
l for regular follow-up and the time frame.
Audit Team SkillsAn environmental audit team should have necessary auditing skills as "ell as in depthknowledge of the environmental aspects of the electricity sector and ompetence inpreparing environmental auditing.
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