Drilling dialogues: conversations about drilling professionalism and the rise of the off-grid city

by Adrian Healy, Cardiff University, UK

The African Water Association Congress 2020 witnessed an increasing focus on the important role groundwater plays in urban water supplies across Africa. It was my pleasure to facilitate two lively panel debates on what are important, but often overlooked, themes in the development of groundwater resources. The first panel considered professionalism in the drilling industry whilst the second discussed the increasing number of urban households commissioning their own boreholes.

Callist
Callist Tindimugaya and Kerstin Danert discuss drilling professionalism (Photo: A. Healy)

The drilling industry includes a range of professions and roles ranging from the owner of a drilling company, through drilling operators to hydrogeologists and drilling supervisors. The skills and experience required can vary substantially, depending on the hydrogeology involved and the nature of the boreholes being drilled. What does not vary are the negative impacts poor drilling professionalism can have, on borehole functionality. This results in losses to those who commission boreholes and, potentially, adverse implications for groundwater quality. Across Africa there is also a shift in who is commissioning boreholes. What was once the preserve of governments, firms and donor bodies is now increasingly witnessing direct action by households themselves.

Although, there are examples of good practice across the African continent, panellists recognised that there is are problems with professionalism. This can be due to a lack of experience of the drillers and supervisors, as well pressures to reduce costs. All too often experience is gained only through what can be gleaned ‘on-the-job’ leading to skills-decay across the profession over time. The privatisation of the drilling industry has exacerbated the situation as there are few incentives to encourage investments in training, and limited places where training occurs. Where the ground is easy to penetrate and water is relatively shallow, manual drilling techniques can be used. This means that skills gap becomes more acute as competition by low-cost drillers erodes the potential value of investments in training and skills development.

Panellists argued that a professional drilling industry requires strong regulation by government. Drilling companies should be licensed and boreholes should be assessed for the quality of construction. Competition amongst drilling companies should be based on minimum standards and not reward cost-cutting and poor employment conditions. Government can also support the provision of training facilities.

In Uganda, experienced drillers now provide the benefit of their knowledge to a new generation of professionals, which builds on the legacy of past investments in training (e.g. http://www.rural-water-supply.net/en/resources/details/876). A wider challenge is raising awareness of the skills and expertise required to successfully access groundwater through boreholes amongst government officials and the wider public. This highlights the importance of a broader debate on the theme of groundwater and urban water supplies.

The critical role played by the wider public was also discussed by the second panel in the context of the remarkable rise in the proportion of urban households commissioning their own boreholes in many African countries. Although official figures are hard to find, both the panellists and the audience recognised this to be a rising trend across many cities in Africa. Rapid rates of urbanisation have left many with no access to public piped water supplies, or with only erratic and unpredictable supplies. In these circumstances, households source their own water supplies. For many households, groundwater forms an accessible, convenient and reliable source of water, even in countries where officially this is not permitted.

Panellists felt that the implications of this rising trend of urban self-supply are not yet clear. There are social and economic benefits for those who are able to access a reliable source of water, but with potential costs for those who are excluded. Debates on the potential costs of lost revenue to water utilities were inconclusive, as households often act because they are not being reliably supplied by a utility. Where there is a proliferation of borehole development then the potential impacts to the groundwater resource were acknowledged to be substantive. However, little is known of the quality of borehole construction or overall abstraction rates at present. Panellists indicated that anecdotal evidence points to a lack of awareness amongst urban populations of the importance of good groundwater management and highlighted that, when this is combined with poor professionalism in the drilling industry, there are risks for the resource. An emerging concern is the number of abandoned boreholes, which tend to be left unsealed, associated with urban self-supply and poor drilling professionalism.

Chikondi
Chikondi Shaba speaks about urban water self-supply (photo: A. Healy)

The panel discussion served to highlight the importance of this crucial topic, but recognised that a lack of robust data limits the opportunities for informed debate. In the absence of data, panellists argued that the rise of off-grid access to groundwater imperilled the stewardship of the groundwater resource on which many cities now relied. Returning to the theme of the first panel, panellists stressed how education, communication and engagement with the wider public was as important for good groundwater stewardship as technical skills and strategies.

Our thanks to Skat Foundation, the Ugandan Ministry of Water and Environment, the Ugandan Drilling Contractors Association and UK Research and Innovation for supporting this session. We thank each of the participants: Callist Tindimugaya, Kerstin Danert, Michael Ale, Jenny Grönwall, Moshood Tijani; Chikondi Shaba and Moustapha Diene.

Adrian Healy researches urban water resilience in sub-Saharan Africa. He is based at Cardiff University in the UK. He can be contacted at Healya2@cardiff.ac.uk

Ministerial body goes underground in search for water solution amid climate change

by Isaiah Esipisu for PAMACC News Agency

KAMPALA, Uganda (PAMACC News) – As climatic conditions continue to disrupt normal rainfall patterns, drying up rivers and streams, the African Ministers’ Council on Water is now seeking to understand groundwater, following numerous studies that have shown that it is key to building resilience.

“The volume of groundwater in Africa is estimated at 0.66 million km3, which is more than 100 times the annual renewable freshwater resources, but since it is hidden underground, it remains under-valued and underutilized,” said Dr Paul Orengoh, the Director of Programs at African Ministers Council on Water (AMCOW).

This comes after a recent study led by scientists from University College London (UCL)and published in the Nature Journal suggested that groundwater in the Sub Saharan Africa region was resilient to extreme climate conditions, making it a key resource for climate change adaptation.

To examine how groundwater is replenished, Prof Richard Taylor of UCL together with several other scientists from different institutions abroad and in collaboration with their counterparts in Africa examined how different aquifers behaved with different rainfall patterns.

“Our results suggest that the intense rainfall brought about by global warming strongly favours the renewal of groundwater resources,” said Prof Taylor noting that over half the world’s population is predicted to live in the tropics by 2050, and therefore dependence on groundwater as a resource will continue to rise.

And now, AMCOW has formed an initiative that will help member states understand their water resources, manage it sustainable, and use it for poverty alleviation in their respective countries.

“The AMCOW Pan-African Groundwater Programme shortened as APAGroP seeks to improve the policy and practice of groundwater in Africa for better lives and livelihoods in all the 55 member countries,” said Orengoh.

Studies have shown that at least 320 million people in Africa lack access to safe water supplies, and therefore developing groundwater resources sustainably, according to experts, is a realistic way of meeting this need across Africa.

APAGroP therefore comes in to bridge the knowledge deficits gap around groundwater on the continent.

Through the initiative, AMCOW seeks to support Member States to develop, manage, and utilize water resources to assure water, food and energy security in Africa. “WASH has historically attracted prime attention. Strategy is raising the priority given to water for food, energy and industrial production,” said Orengoh.

Speaking at the recently concluded African Water Association (AfWA) Congress in Kampala Uganda, Dr Callist Tindimugaya, the Commissioner for Water Resources Planning and Regulation Ministry of Water and Environment in Uganda said that there is need to to support and implement APAGrop- from transboundary to local scale.

“APAGrop should have a strong link with all Regional Economic Communities, River Basin Organisations and member states for easy implementation,” he said. “These regional organisations and member states can contribute through actual implementation on the ground, capacity building, resource mobilization, and advocacy,” noted Dr Tindimugaya.

Apart from regional platforms and member states, AMCOW seeks to work in close collaboration with consumptive sectors, which include agriculture, water supply, industry, among others through appropriate platforms.
Others are research-to-use organizations and associations such as the International Association of Hydrogeologists (IAH), Civil Society Organisations, the private sector and international bodies and organisations.

“By the end of the day, we expect to have increased knowledge base on groundwater resources, strengthened groundwater networks, strengthened capacity for groundwater development and management across all member states, and strengthened multi-purpose and sustainable use of groundwater to enhance water and food security and climate resilience,” said Dr Orengoh.

Meet Joseph Okullo, a groundwater research scientist in the making

Interview and photos by Isaiah Esipisu

With a Masters degree in geology from Makerere University, Joseph Okullo landed a consultancy job, to assist UPGro team in Uganda as a physical scientist. Since then, his star has been glowing brighter and brighter.

During the Africa Water Association (AfWA) Congress in Kampala, the 36 year old upcoming scientist shared his experience based on his involvement with UPGro, and what it means to his future career.

Here are his excerpts:

IE: What role did you play in the UPGro study in Uganda?

JO: I worked as a physical science research assistant within the Hidden Crisis project, through which I was involved in a number of activities.

The first survey involved scrutinizing 200 boreholes in different parts of the country. We did random selections of these boreholes in districts.

The main aim was to check the functionality of these water points and also the water quantity. Through this, we discovered that there were a number of boreholes that could not meet the set standard of the yield, which is 10 litres per minute with full stroke.

As a result, there is a clear understanding as to why many boreholes were failing soon after construction. By understanding the problem, it becomes much easier to search for the solution.

IE: What impact did this research have on your career

JO: Before I met UPGro, I was jobless. And because UPGro worked hand in hand with Makerere University, I begun to interact with scientists from the university from time to time and during this period, they saw my potential. That’s how I secured a part time job as an assistant lecture at the University.

Today, am in the process of PhD admission at the same university.

IE: What do you intend to research on if you manage to secure the admission?

JO: My research topic is about how climate change affects groundwater storage and recharge in the Northern part of Uganda.

Northern Uganda is an area that has not been studied well in terms of groundwater, given that it is a semi arid area. UPGro had researches in those areas and I am happy to build on the already existing knowledge developed through UPGro.

IE: How did it feel working with rural communities in different parts of the country?

JO:  It is interesting to work with different communities. But the first thing is to try and make yourself part of these communities because they have different cultures, different norms and different way of thinking. As a researcher you need to strike a balance with any given community.

However, it is so gratifying when you help them find solutions to problems that have bedeviled them for so many years.

IE: From the experience with communities under the UPGro research, what do you think is the perfect way of managing community water points?

JO: There have been several models. But most of them end up collapsing because of one reason or another. However, we have communities in places like Masindi District which are managing their boreholes in a very sustainable manner.

These communities operate like micro-finance institutions, where they collect money from members, and they can still lend the same whenever a member needs cash. Since they have an active account, it becomes so easy for them to fix their boreholes in case there is a problem.

IE: What did you learn during this research process?

JO: I have learned many things. For example, before this project, I knew that if a borehole is yielding water, then it is functional. But with the UPGro approach, functionality is far beyond water coming from a borehole. You look at the quantity of the water, the leakage, if there some underlying issues to indicate that it was almost breaking among other things.

IE: What do you think should be done to improve access to safe water for people in rural Uganda?

JO: From the UPGro experience, I discovered that there are so many boreholes that have been sunk, but they are not well taken care of. This is mostly because communities think it is not their responsibility to manage those boreholes.

Some of them were sunk by politicians during campaigns, and by the end of the campaigns, they are abandoned. Some of them are just functional save for very small hitches. Yet communities do not take responsibility because they feel that it was a politician’s project, or an NGO project

To solve this problem, there is need to strengthen the ownership, and strengthen water user committees.

Another problem is about spare parts. It is not easy to get a genuine spare part in the Ugandan market. If there was a groundwater policy, then the regulators will understand the importance of groundwater and regulate the importation of these spare parts. Before this happens, communities will be forced to live with what is available in the market.

Lastly, we have difficult hydrogeological environments. In some areas, it is not easy to site groundwater aquifers. This therefore calls for more detailed surveys to guide and inform on the water provision within those particular communities.

Groundwater could be the solution to contaminated Kampala slum water crisis

by Isaiah Esipisu

After a recent study discovered traces of dangerous viruses including cancer causing pathogens in shallow groundwater in Kampala slums, residents of Makerere 2 Zone C can finally breathe a sigh of relief as further studies indicate that deeper groundwater in their area could be safe for drinking.

In collaboration with a community based organisation known as MAK H2O Project, scientists from IHE Delft Institute for Water Education together with their counterparts from Makerere University have been working with communities to find out the best way of managing their groundwater in a sustainable manner.

“As a short term measure, we have been encouraging community members to boil the water from slum springs before drinking,” said Brian Lutaaya, the Chair – MAK H2O Project.

Most of the water springs in Makerere 2 Zone C are just a few meters from pit latrines, a clear indication that the water, which appears to be sparkling clear, is likely contaminated with fecal matter. The water is fetched from an open earth surface. This makes it susceptible to all manners of waste contamination brought around by wind, rainfall runoff water and even malicious individuals.

“We are fully aware of the dangers involved, but we have no alternative source of water for drinking and for domestic use,” Edith Kansiime, one of the area residents said during a field visit by UPGro delegation to the 2020 Africa Water Association (AfWA) International Congress.

Taps in most parts of the slum went dry some years ago. The only available alternative is to buy mineral water from the shops, which is too costly for most of the slum dwellers.

As a result, the surface water has exposed them to several disease causing pathogens, some which are life threatening.

A recent study by IHE Delft Institute for Water Education in collaboration with scientists from universities in Uganda and Tanzania discovered traces of 25 different harmful viruses in surface water in the slums of Kampala and Arusha.

The study, whose findings were presented at the Assembly of the European Geosciences Union (EGU) in Vienna, Austria, found that most groundwater in the two slums contained traces of herpes viruses, poxviruses, and papilloma-virus. The latter could be one of the causes of different types of cancers in the region.

Cancer is one of the lead killer diseases in the East African region, claiming about 100,000 lives every year.

According to Lutaaya, the condition of spring water in Bwaise in Kampala, where the study was conducted is not different from the situation in lower Makerere slums.

“To our knowledge, these viruses have never been found in groundwater before on such a large scale, perhaps because there has never been an in-depth analysis,” said Dr Jan Willem Foppen, one of the researchers.

To support the communities, the scientists have been conducting experiments to understand the nature and safety of groundwater in these slums.

In lower Makerere slum for example, the research scientists through the UKaid funded UPGro programme, in a project known as T-GroUP, the scientists have sunk two boreholes, one with a shallow depth of just three metres, and another with a depth of 25 metres.

The researchers have been monitoring the water quality in both boreholes for a number of months, and the early indication is that the deeper borehole has much safer water compared to the three metre shallow borehole.

“We have not concluded this study, but there is an indication that deeper groundwater is likely going to be the solution for thousands of residents in this slum,” said Dr Foppen.

Through the T-GroUP, the scientists have been experimenting with practical transition groundwater management strategies for the urban poor in Sub Saharan Africa. They employ the Transition Management theory to find radically new and collaborative ways of using and managing urban groundwater.

Live Now: #AfWAGroundwater2020

photo: Dr Kerstin Danert facilitating this morning’s opening session of the UPGro Study Tour, Kampala, from @amcowafrica
We are really excited that today, in Kampala, is the kick-off a week of activities to promote, show and discuss the opportunities and challenges of using groundwater for rural and urban water supply, and for environmental and economic sustainability. This is part of the African Minister’s Council on Water (AMCOW) new Pan-African Groundwater Program, which was launched in Nairobi in October last year, in partnership with IWMI, GRAN (Groundwater for Resilience in Africa Network), UPGro (Unlocking the Potential of Groundwater for the Poor), GRIPP, BGR and support from the Africa Groundwater Network and the Sustainable Groundwater Development Theme of RWSN.

The aim of these coordinated activities is to build a strong and lasting connection between researchers, policy-makers and implementers, not just in Uganda, but across Africa. If you are any of those, then we hope to create opportunities for you to get involved over the coming months and years.

For live updates follow the #AfWAGroundwater2020 on Twitter and follow

What’s happening and where:

Thursday 20 Feb: UPGro Study Tour – Day 1 (closed event)

  • Learning with UPGro – delegates meet and brief
  • Group A: Learning from the adaptation of Transition Management approach in Bwaise Community, Kampala
  • Group B Learning from the adaptation of Transition Management approach in Bwaise community, Makerere Community, Kampala

Friday 21 Feb: UPGro Study Tour – Day 2 (closed event)

  • Group C: Rural Water Supply Functionality: beyond the numbers, Luwero District
  • Group D: Unlocking the Potential of Groundwater through Resource Assessment, Management and Regulation, Ministry of Water and Environment Headquarters, Luzira, Kampala
  • Closing event – sharing of experiences, debriefing and take-away messages

Saturday 22 Feb: AMCOW APAGroP Working Group Meeting (closed event)

AIM:  Building on the progress made at the launch of APAGroP in Nairobi in October 2019, the aim of this one-day meeting is for APAGroP to be taken forward and the APAGroP Working Groups to be operationalised, with a programme of activities for the next 12 months.

OBJECTIVES

  1. Consolidate and build on the momentum set in Nairobi
  2. Strengthen groundwater networks
  3. Key short-term priorities and deliverables for APAGroP set out and agreed
  4. “Action Groups” under each Working Group established
  5. Draft Action Plans for each Action Group developed, with a designated Champion to lead the group, and ways of collaborating over the next 12 months set out
  6. Milestones for 8th Africa Water Week and the 9th World Water Forum 2021 and other key events identified and agreed

Sunday 23rd Feb: AMCOW Groundwater Policy Dialogue (closed meeting)

AIM:  The African Ministers’ Council on Water (AMCOW) launched its Pan-African Groundwater Program (APAGroP) with a major meeting in Nairobi October 2019. The programme, with its crucial target being that groundwater is better represented in the continent’s major strategic programs around water, intends to improve the policy and practice of groundwater in Africa for better lives and livelihoods. The initiative is intended to contribute to the achievement of the continent’s commitment to the United Nation’s Sustainable Development Goal 6 – Ensure availability and sustainable management of water and sanitation for all.

The purpose of the Groundwater Policy Dialogue is to:

  1. Inform AMCOW TAC Members of background and forward-looking dimensions of the APAGroP, including a roadmap through AWW8 in Windhoek, November 2020, to the WWF9 in Dakar, March 2021;
  2. Share experiences and messages between AMCOW TAC and groundwater networks;
  3. Bridge the gap between science, policy and practice; and
  4. Build a cadre of groundwater ambassadors at the political representation level among AMCOW Member States.

Monday – Thursday: African Water Association (AfWA) Congress, Kampala (open to delegates)

  • High-level Ministerial Dialogue
  • Keynote: Dr Kerstin Danert
  • Groundwater exhibition stand, convened by UPGro (I will be there, to answer questions)
  • Groundwater sessions through the week:
Topic/Title Convenors Chair
1.     Groundwater Governance: The AMCOW Pan-African Groundwater Program as a Catalyst for Intra- and Cross-country Groundwater ‘Resource-to-Tap’ Management AMCOW/GRAN/BGS/IWMI

(Dr Karen Villholth)

Dr Kerstin Danert

Programme Coordination Group Chair – UPGro

Skat Foundation, Switzerland

2.     Where does your water come from? 5 ways to increase water security and inclusive access in cities, towns and villages UPGro

(Prof. Richard Taylor)

 

Dr. Simeon Dulo

University of Nairobi, Kenya

 

3.     Insights in the adaptation of transition management in order to increase sustainable urban groundwater management UPGro
(Prof. Jan Willem Foppen – T-GroUP/ IHE Delft)
Dr Robinah Kulabako

Makerere University, Uganda

4.     Off Grid: the opportunities and challenges of safe and sustainable water points UPGro

(Prof. Alan MacDonald)

Co chairs

Alan MacDonald, British Geological Survey, UK  & Chikondi Shaba, Chancellor’s College Malawi

5.     Manage, recharge, protect – Groundwater for resilient urban water supply BGR/IWA GM SG

(Michael Eicholz)

Ramon Brentführer

Federal Institute for Geosciences and Natural Resources (BGR), Germany

6.     Drilling dialogues: a conversation about professionalism, groundwater mapping and off-grid cities Cardiff University, Skat Foundation, Uganda Drilling Contractors Association, Ministry of Water and Environment

(Adrian Healy)

Dr Adrian Healy

UKRI Future Leader Fellow

Cardiff University, UK

7.     Unlocking Groundwater: from data to knowledge. What’s needed to manage groundwater for society, economy and environment AMCOW/GRAN/BGS/IWMI

(Kirsty Upton)

 

Paul Orengoh,

Director of Programmes

African Ministers Council on Water (AMCOW), Nigeria

 

 

 

From a dream of becoming a Medical Doctor to a Civil Engineer – the Career Journey of Jennifer Isoke

Interview by Isaiah Esipisu

Jennifer Brenda Isoke is a Ugandan female Civil Engineer with a purpose. Besides being a public servant, Isoke has spent invaluable amount of time in different universities since 2003, preparing and delivering lecture presentations to students pursuing Construction Technology, Concrete Technology and Mechanical Plant.

She has lectured at the Uganda Technical College Kichwamba, at the Department of Water Engineering, and at Ndejje University College. To date, she is a part time lecturer at the Uganda Christian University Mukono, and she also works at the Uganda Technical College Elgon as a senior lecturer.

J-Isoke
Jennifer Brenda Isoke (photo courtesy of: J B Isoke)

Besides her dedication to imparting of knowledge to upcoming civil engineers, she is a public servant working at the Uganda Business and Technical Examinations Board, which is a government Agency under the Ministry of Education Responsible for the national assessment of tertiary institutions in Uganda.

Given her vast knowledge and experience, Isoke has been part of the UPGro team of researchers under the T-Group. As a result, she has made a number of presentations in major conferences not limited to a presentation at the plenary session at the 2019 UMI conference, which was done in the presence of former South Africa’s president Thabo Mbeki.

UPGro Knowledge Broker team caught up with her, to find out what drives her enthusiasm.

[main photo: Jennifer Isoke sharing a copy of the UPGro research with residents of Bwaise, Kampala; Photo courtesy of J B Isoke]

Continue reading From a dream of becoming a Medical Doctor to a Civil Engineer – the Career Journey of Jennifer Isoke

Dr Robinah Kulabako: A new vision for empowered communities and safe water in Kampala

Dr Robinah Kulabako of Makerere University describes the research work of T-GroUP – one of five projects in the UPGro (Unlocking the Potential of Groundwater for the Poor) and her work on Transition Management to trigger community action to improve access to safe water.

Listen to the interview with her by Isaiah Esipisu on Soundcloud

Find out more here: t-group.science
and here: UPGro/T-GroUP

Photo: Dr. Kulabako at Africa Water Week 2018 (I. Esipisu)

Technical brief now available – Project approach for defining and assessing rural water supply functionality and levels of performance

The Hidden Crisis project team have now published a Technical Brief on the methods developed and used by the project to assess rural water supply functionality and levels of performance – now available from here.

This technical brief is aimed at sharing the learning and approaches developed by the project to look at how the functionality and performance levels of boreholes equipped with handpumps (HPBs), can be assessed using a common set of definitions and methods. A tiered approach to defining and measuring functionality was found to be useful to examining functionality for different scales and purposes of monitoring. 

The report is aimed at national and regional actors involved in the provision and monitoring of rural water supply functionality.

The brief sets out the tiered functionality definitions, and accompanying survey methods, which were developed by the project and have been applied in functionality surveys across Ethiopia, Uganda and Malawi .

Photos: BGS © UKRI. Survey 1 Field teams, Uganda and Malawi

Rural water supply: a political economy analysis

The Hidden Crisis project team examined the political economy of rural water supply (RWS) in Ethiopia, Uganda and Malawi during 2017 and 2018. These are based on literature and interviews with government staff and water sector stakeholders to unpick systemic obstacles to sustainable access to water.  

The three reports summarising the key findings are now published – and available from here.

The findings provide an insight to some of the key structural factors which affect RWS performance (historical, institutional, actors) in the three countries – examining systematic factors, decision making logic and opportunities for reform.

Photo: BGS © UKRI. Hand-pumped borehole water supply, rural Malawi.

UPGro T-Group research finds cancer-causing viruses in Kampala and Arusha slum groundwater

by Isaiah Esipisu and Dr Jan Willem Foppen (T-GroUP)

In Summary

  • The study found that most groundwater in the two slums contains traces of herpes virus, poxvirus and papilloma virus.
  • Cancer is one of the top killer diseases in East Africa, blamed for nearly 100,000 deaths every year.

Watch EGU press-conference presentation by Dr Foppen (start 18:00 minutes into recording)

Researchers from IHE Delft Institute for Water Education and their peers from Uganda and Tanzania have found traces of 25 DNA virus families — some of them with adverse health risk for humans — in underground water in the slums of Kampala and Arusha.

The study, whose findings were presented at the Assembly of the European Geosciences Union in Vienna on Monday, found that most groundwater in the two slums contains traces of herpes virus, poxvirus and papilloma virus.

CANCER

The latter could be one of the causes of cancer in East Africa.

“These viruses have never been found on such a large scale in ground water. Perhaps it is because there has never been an in-depth analysis,” said Dr Jan Willem Foppen, one of the lead researchers and a hydrologist at the IHE Delft — the largest graduate water education institution on the planet.

Cancer is one of the top killer diseases in East Africa, blamed for nearly 100,000 deaths every year.

According to the latest report by the International Agency for Research on Cancer, some 32,617 new cases were reported in Uganda last year, with 21,829 deaths.

32,617 DEATHS

In the same period, Kenya recorded 47,887 new cases and 32,987 deaths while there were 42,060 new cases in Tanzania with 28,610 deaths.

Scientists have therefore expressed concerns that the widespread use of groundwater in slums for cooking, cleaning and bathing poses a risk for the residents.

In the two-year study, the scientists analysed surface water (river and drain), spring water, wells and piezometers (groundwater from specific depth) in the three countries.

“We found 25 DNA virus families, of which 14 are from above ground hosts like frogs, mice, rats, cows, horses, monkeys and humans,” Dr Foppen said.

DISEASES

Of the human disease causing pathogens found in the samples, herpes virus and poxviruses can lead to skin infections while the papilloma cause some types of cancers such as cervical, laryngeal and mouth.

“This could be just a tip of the iceberg. We have not found all the viruses. We found the most abundant ones,” Dr Fopen said.

“Let’s do something about sanitation. Let us improve our sources of drinking water and identify new pathways with communities towards sustainability.”

Versions of this article have been published in:

Further papers and data will be published soon.