Why Clean Water, Sanitation and Hygiene Are Essential for Healthy Communities

What Is Water, Sanitation and Hygiene (WASH)?

WASH is a public health and development approach that brings together three essential services: safe water, adequate sanitation and good hygiene practices. These elements work together to reduce exposure to disease, improve living conditions and support human dignity.

Each component addresses a different but closely related need.

These services are most effective when they are planned together. For example, a household may have access to a protected water point, but unsafe storage practices can introduce contamination before the water is consumed. Similarly, a school may have toilets but still struggle with hygiene if there is no soap or functioning handwashing station.

Effective WASH programmes therefore consider infrastructure, behaviour, accessibility, community participation and long-term maintenance. These priorities are reflected in the focus of the SDC Kenya Water, Sanitation and Hygiene Programme, which highlights the importance of safe water, improved sanitation, hygiene education and sustainable community solutions.

1. Clean Drinking Water Protects Families From Preventable Diseases

Water is essential for life, but the presence of water alone does not guarantee safety. Drinking water can contain harmful bacteria, viruses, parasites or chemical contaminants. Some of these hazards cannot be detected through appearance, smell or taste.

When people consume contaminated water, they may develop illnesses such as cholera, typhoid fever and diarrhoeal infections. These conditions can affect anyone, but young children, older adults and people with weakened immune systems may face particularly serious consequences.

How Water Becomes Contaminated

Contamination can occur at different points between the water source and the household. A protected source may become unsafe because of damaged infrastructure, flooding or poor maintenance. Water may also be contaminated during transportation or storage.

Common causes include:

• Unsafe water sources — collecting water from sources exposed to sewage, animal waste or other pollutants.
• Improper storage — leaving containers uncovered or allowing dirty utensils and hands to touch stored water.
• Damaged infrastructure — broken pipes and poorly maintained water systems that allow contaminants to enter.
• Inadequate treatment — consuming water without suitable treatment when the source is not known to be safe.
• Environmental contamination — flooding, runoff and unsafe waste disposal that affect water quality.

Preventing waterborne disease requires attention to the entire water supply process. Safe collection, suitable treatment, clean containers and responsible household practices all contribute to protecting drinking water.

Safe Water Also Supports Everyday Household Health

Beyond drinking, water is needed to prepare meals, clean utensils, wash hands and maintain household sanitation. When water is unreliable, families may be forced to choose between competing needs. A limited supply might be reserved for drinking while handwashing, cleaning and other hygiene activities are reduced.

Reliable water access makes healthy routines easier to maintain. It also reduces the burden associated with collecting water, particularly for households where women and children carry much of that responsibility.

2. Improved Sanitation Reduces Disease and Protects Human Dignity

Sanitation is sometimes understood simply as the availability of toilets. However, safe sanitation involves the entire process of managing human waste so that it does not threaten people or the environment.

When human waste is not safely contained and managed, disease-causing organisms can spread through soil, water, food, insects and contaminated surfaces. This creates risks that extend beyond individual households to the wider community.

What Makes a Sanitation Facility Safe?

An appropriate toilet should provide privacy, be accessible to its intended users and support safe waste management. The specific design may vary according to environmental conditions, population needs, available resources and technical requirements.

Important considerations include:

• Safe containment and management of human waste.
• Privacy, security and adequate lighting where needed.
• Handwashing facilities with soap and water nearby.
• Accessibility for children, older people and persons with disabilities.
• Routine cleaning, inspection and maintenance.
• Appropriate arrangements for emptying, treatment or disposal when required.

Sanitation facilities must also remain functional over time. A toilet that becomes damaged, inaccessible or unsafe may no longer provide the protection it was intended to offer.

Sanitation Is Also About Dignity and Safety

The absence of private and accessible toilets can have serious social consequences. Women and girls may experience discomfort, fear or difficulty managing menstruation. Children may avoid using poorly maintained facilities, while people with disabilities may be excluded entirely if toilets are not designed for their needs.

Improving sanitation is therefore not only a technical public health intervention. It is also a way of supporting privacy, dignity, inclusion and a safer daily environment.

3. Good Hygiene Practices Help Break the Chain of Infection

Many infections spread when harmful microorganisms move from contaminated hands, surfaces, food or objects into the human body. Good hygiene practices help interrupt this process.

Handwashing with soap is particularly important because hands frequently come into contact with shared objects, food, water containers and other people. Without proper cleaning, germs can move between these surfaces and contribute to illness.

When Should People Wash Their Hands?

Regular handwashing is important, but certain moments deserve particular attention because the risk of contamination is higher.

How to Wash Hands Effectively

1. Wet your hands with clean running water.
2. Apply soap and rub your hands together to create a lather.
3. Clean the palms, backs of hands, between fingers and around fingernails.
4. Scrub thoroughly for at least 20 seconds.
5. Rinse with clean running water.
6. Dry using a clean towel or another hygienic method.

Where running water is unavailable, a clean handwashing device that allows water to flow over the hands can provide a practical alternative. The important goal is to make handwashing possible, convenient and consistent.

Hygiene education is most effective when people can practise what they learn. Encouraging handwashing without providing accessible water and soap places an unrealistic burden on households and institutions. Behaviour change and suitable facilities must therefore go together.

4. Water, Sanitation and Hygiene Have a Direct Connection to Child Nutrition

Nutrition is influenced by more than the amount and quality of food a child eats. Illness, repeated infections and the conditions in which food is prepared can also affect nutritional wellbeing.

Unsafe water and inadequate sanitation increase exposure to diarrhoeal diseases. During illness, children may lose fluids, eat less and experience difficulties absorbing nutrients. Repeated infections can place additional pressure on a child’s growth and development.

This relationship explains why nutrition programmes and WASH interventions often complement one another.

How Poor WASH Conditions Can Affect Nutrition

• Repeated diarrhoeal illness can contribute to dehydration, nutrient losses and reduced appetite.
• Unsafe food preparation can introduce harmful microorganisms into meals.
• Contaminated feeding equipment can expose infants and young children to infection.
• Limited water availability can make cleaning food, utensils and preparation areas more difficult.
• Poor sanitation can increase exposure to environmental contamination.

Improving hygiene and water safety can support healthier feeding environments. However, WASH improvements do not replace adequate food, nutrition services or medical care. Children need a combination of appropriate nutrition, disease prevention and timely healthcare.

These connections are particularly relevant to the priorities addressed through SDC Kenya’s Nutrition Programme, where nutrition awareness and the wider conditions affecting wellbeing are important considerations.

Practical Steps for Safer Child Feeding

Caregivers can reduce some food-related risks by washing their hands before preparing meals, using safe water, cleaning utensils thoroughly and storing prepared food appropriately. Young children should receive age-appropriate feeding and care in line with qualified health guidance.

When a child develops diarrhoea, dehydration can become dangerous quickly. Caregivers should seek prompt medical attention if the child cannot drink, becomes unusually sleepy, develops blood in the stool or shows signs of significant dehydration.

5. Safe WASH Facilities Help Children Learn in Healthier Schools

A school environment should support learning without exposing students to avoidable health and hygiene risks. Access to drinking water, clean toilets and handwashing facilities contributes to that goal.

When these services are inadequate, students may struggle with discomfort, illness or the practical difficulties of meeting basic hygiene needs during the school day.

What Does a WASH-Friendly School Need?

Why Menstrual Hygiene Matters in Education

Menstruation is a normal biological process, but inadequate facilities can make managing it at school difficult. Students may need private toilets, water for washing, appropriate menstrual materials and safe disposal arrangements.

Accurate menstrual health education is equally important. When young people understand menstruation and feel able to ask questions without embarrassment, schools can create a more supportive learning environment.

Investing in school WASH is therefore an investment in both health and educational inclusion. It complements broader efforts to improve learning opportunities, including those highlighted in SDC Kenya’s Education Programme.

6. Water Scarcity and Climate Change Make Sustainable WASH More Important

Climate change and environmental pressures can affect the availability and reliability of water. Changes in rainfall patterns, prolonged dry periods, flooding and rising demand may place additional strain on existing water systems.

For households already experiencing unreliable access, these pressures can make everyday hygiene and sanitation more difficult. Less water may be available for handwashing, cleaning, cooking and other essential needs.

Flooding can create different challenges by damaging infrastructure and increasing the possibility that contaminants enter water supplies.

Practical Approaches to Water Resilience

Building resilience requires solutions suited to local environmental and technical conditions. Possible approaches include:

• Rainwater harvesting where rainfall patterns, storage capacity and water quality requirements make it appropriate.
• Water conservation to reduce unnecessary consumption and encourage responsible use.
• Protection of water sources from pollution, physical damage and unsafe activities.
• Leak detection and repairs to reduce water losses in distribution systems.
• Appropriate water storage to improve reliability during interruptions.
• Community maintenance planning to support timely repairs and responsible system management.

Climate-resilient infrastructure must also be economically and technically sustainable. A complex water system may offer little long-term benefit if spare parts are unavailable, maintenance costs are unrealistic or no one is responsible for operating it.

For this reason, community participation and technical assessment should guide the selection of water solutions rather than assuming that one technology is suitable for every situation.

7. Why Community Participation Is Essential for Lasting WASH Improvements

Successful water and sanitation services depend on more than construction. They also depend on whether people can use, maintain and manage the facilities over time.

Community members understand many of the everyday challenges that outside planners may overlook. They know which water points are difficult to reach, when supplies are unreliable, what prevents people from using sanitation facilities and which groups face particular accessibility barriers.

Involving communities from the beginning can improve the relevance and practicality of proposed solutions.

What Meaningful Community Participation Looks Like

• Listening to households before deciding which services are most urgently needed.
• Including women, young people and persons with disabilities in planning discussions.
• Explaining how facilities will be operated and maintained.
• Establishing clear arrangements for reporting breakdowns and safety concerns.
• Providing accessible hygiene information that people can use in daily life.
• Reviewing whether facilities continue to meet community needs after installation.

Participation should not be treated as a single meeting or consultation. It is an ongoing process that supports accountability and helps communities identify emerging challenges.

Why Maintenance Matters as Much as Construction

A water point that breaks down repeatedly can force families to return to unsafe alternatives. A toilet that is not cleaned or maintained may become unusable. A handwashing station without soap or water cannot fulfil its purpose.

Long-term planning should therefore consider technical support, spare parts, financing arrangements, regular inspections and clear responsibilities. These measures help protect the value of investments and improve service continuity.

8. How Households Can Improve Water and Hygiene Safety

Large-scale improvements in water and sanitation often require infrastructure, public services and investment. However, households can also adopt practical measures that reduce avoidable risks while broader needs are being addressed.

These actions are valuable, but household responsibility should not be confused with the responsibility of institutions to provide safe and accessible services. People cannot consistently practise recommended hygiene behaviours without reliable access to essential facilities and supplies.

Improving WASH outcomes therefore requires both individual action and collective investment.

9. How Can We Tell Whether WASH Improvements Are Working?

Counting newly installed taps or toilets provides only part of the picture. A facility may exist without being safe, reliable or accessible. Sustainable WASH progress should be measured through the quality and continued use of services.

Useful indicators include water quality, service reliability, sanitation accessibility, handwashing availability and maintenance performance.

Monitoring also helps identify unintended problems. For example, a new water point may improve access for some households while remaining difficult to use for people with limited mobility. Gathering feedback can reveal these barriers and guide improvements.

Reliable evidence is important when communicating the results of development initiatives. Organisations should distinguish between planned activities, completed work and outcomes that have actually been measured.

10. The Role of NGOs, Institutions and Development Partners in WASH

Many WASH challenges cannot be solved by households acting alone. Water infrastructure, sanitation systems, public health education and environmental protection often require cooperation among several groups.

Public institutions, technical professionals, community organisations, development partners and NGOs can contribute different capabilities. The strongest approaches combine technical knowledge with community priorities and realistic long-term planning.

Areas Where Collaboration Can Make a Difference

• Community needs assessments to understand gaps in access, safety and inclusion.
• Hygiene education that helps households and institutions adopt practical preventive behaviours.
• Technical planning for appropriate water and sanitation systems.
• Capacity building to strengthen local management and maintenance knowledge.
• Resource mobilisation to support priorities identified through responsible planning.
• Monitoring and accountability to evaluate whether services remain effective over time.

Collaboration works best when responsibilities are clear, communities are meaningfully involved and partners avoid making promises that cannot be sustained.

For organisations and individuals interested in contributing to community development, SDC Kenya provides information on ways to get involved in its development priorities.

Frequently Asked Questions About Water, Sanitation and Hygiene

Conclusion — Healthy Communities Begin With Safe Water, Sanitation and Hygiene

Clean water, safe sanitation and good hygiene are not optional conveniences. They are essential conditions for protecting health, supporting education, preserving dignity and enabling communities to thrive.

Safe drinking water reduces exposure to waterborne illness. Appropriate sanitation helps protect people and the environment from contamination. Good hygiene practices interrupt the transmission of infections, while reliable school facilities support children’s wellbeing and participation in education.

These benefits are closely connected. Progress becomes more sustainable when water services, sanitation facilities, hygiene education and community participation are addressed together rather than as isolated activities.

Creating lasting change requires informed households, inclusive planning, appropriate technical solutions and cooperation among communities, institutions and development organisations. By treating WASH as a shared responsibility, societies can move toward healthier and more resilient futures.