Clean water access for families in Laos
Context
In Lao Peopleβs Democratic Republic, a major study published in 2018 found that 86.3% of members had E. coli in household drinking water, indicating risk of diarrhoea and other waterborne diseases. Although a significant portion of the population treats water by boiling using woody biomass or charcoal to make it safe for drinking, many families cannot afford the time to gather firewood or purchase charcoal and are forced to continue drinking unsafe water.
Project
TerraClear is a social enterprise, registered as a private limited company under the Ministry of Industry and Commerce. The enterprise addresses the problem of limited access to safe, clean drinking water through the sale of the Lao Ceramic Water Purifier (CWP), which helps people:
- Access safe drinking water, especially in rural areas
- Reduce time spent collecting firewood or boiling drinking water
- Reduce costs for families
- Reduce child and adult morbidity and mortality
- Improve attendance at schoolΒ
- Increase productivity
Ceramic Water Purifiers remove microorganisms from water by gravity filtration through porous ceramics, with a typical flow rate of up to 55 liters per day.
During the projectβs first period from June 2012 through July 2019, TerraClear sold and distributed filters to 70,181 households. In the following seven year period, the water purifiers will provide safe drinking water for potentially more than half a million people, and at the same time reduce the demand for water treatment through boiling water with non-renewable biomass. The water purifiers have a useful life of seven years or more, given proper care and maintenance, and are replaceable. The Lao Ceramic Water Purifiers are manufactured locally in Laos and therefore contribute to building a local industry in the country, as well as creating sustainable jobs and business opportunities in rural areas.
With the assistance of carbon finance, TerraClear will continue to be a unique and sustainable enterprise capable of providing emissions-free household water treatment options to rural households; thereby improving public health, contributing to household economy, and helping to conserve the local forests.Β
TerraClear is breaking down the barriers that make clean water access a challenge for rural communities. Creative strategies and community focused education and promotion are allowing TerraClear to change lives a few liters at a time β providing access to safe drinking water through the manufacture and distribution of more thanΒ 70,000Β ceramic filters reaching an estimatedΒ 300,000 peopleΒ in overΒ 1000 villagesΒ in Laos.
Β
Project impacts and benefits:
- 15,000Β tonnes of CO2e saved annually by the project
- 20-30Β litres of clean water β the average daily household consumption fully met by each filter
- 65,000 householdsΒ benefiting from filter use
For everyΒ 1000 carbon creditsΒ purchased:Β
- $15,800Β value of avoided forest degradation*
- 12 hectaresΒ of avoided forest degradation*
- 25 casesΒ of Acute Lower Respiratory Infection (ALRI) treatment avoided*
*Figures are based on Social Return on Investment (SROI) of Nexus for Developmentβs model for the projectβs last monitoring period (MP2, July 2016).
Verification
This project is verified by the Gold Standard and isΒ also a certified CCBS.
UN Sustainable Development Goals
This project aligns with the following UN Sustainable Development Goals:

Ensuring healthy lives and promoting the well-being for all at all ages is essential to sustainable development.

Energy is central to nearly every major challenge and opportunity.

Sustainably manage forests, combat desertification, halt and reverse land degradation, halt biodiversity loss

Clean, accessible water for all is an essential part of the world we want to live in.

Climate change is a global challenge that affects everyone, everywhere.
Find out more about the UN’s Sustainable Development Goals here.






