By Tony Gage
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Additional info for Sanitation and Water Supply Handbook
Their functions vary and may include tariff approvals, monitoring of service quality and handling of complaints. Environmental regulation is entrusted to environmental agencies and the regulation of drinking water quality to Ministries of Health. Supporting community organizations Supporting the numerous community organizations that provide water and sanitation services in Latin America - mainly in rural areas - is a key public function that is often underestimated and neglected. Responsibility for this function, if it is defined at all, can be assigned to a government Ministry and its regional branches, a Social Fund or municipalities.
Investment and financing Investment There are no reliable estimates of actual investment levels in the sector, and available estimates vary greatly. A detailed estimate of investment and financial flows in the Ethiopian water sector was carried out by the World Bank's Water and Sanitation Program (WSP) for the financial year 2001-02. It estimated total sector investments at US$ 39 million or less than half a dollar per capita, being one of the lowest recorded sector investment levels in the world.
The product which is left is called "cake" and that is picked up by companies which turn it into fertilizer pellets. This product is then sold to local farmers and turf farms as a soil amendment or fertilizer, reducing the amount of space required to dispose of sludge in landfills. Much sludge originating from commercial or industrial areas is contaminated with toxic materials that are released into the sewers from the industrial processes. Elevated concentrations of such materials may make the sludge unsuitable for agricultural use and it may then have to be incinerated or disposed of to landfill.