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Nicolas Dickinson gravatar image
WASHCost

As you are looking for costs per cubic meter, if you are interested in Urban, you may want to look here at the IBNET Bluebook on page 16 where there is a table of operation and maintenance costs. I'm sure you can also find the capital expenditure: https://openknowledge.worldbank.org/bitstream/handle/10986/19811/9781464802768.pdf?sequence=5

Finally, it is important what Sean mentions about the full life-cycle costs and I encourage you to go through the WASHCost resources to learn more about it, including the indirect and direct support costs incurred to ensure a working regulatory and enabling environment so that services are sustainable.

The caveat is that WASHCost initially used the denominator of the number of people the system is designed for and the number of people actually served in a service area. Those two denominators yield quite different costs. Also if you are looking per cubic meter, you will also find very different costs, yet the service levels in rural areas are much lower and people tend to use much less water (from formal sources) so that will also affect your calculations.

Ultimately, the WASHCost Share tool tried to enable sharing of these figures but does so per person. Adding a per cubic metre cost would also have added value. In fact, IRC did do a study for UNHCR camps where we did both but I don't think it is published. IBNET has quite an extensive database of costs online for urban areas but may not have data for each country.

https://database.ib-net.org/Default