The 2010 IBNET water tariff database reports the water price charged to the domestic users per m3 for the first 15 m3 consumed through the 20 mm (5/8 inch) pipe according to the formula:
Tariff per m3 = [connection fee +volumetric charge per 15 m3 per month +taxes and other fees]/15
The exchange rate to the $US is as of April 30, 2010.
Data is provided from urban water utilities in both developed and developing countries.
The International Benchmarking Network for Water and Sanitation Utilities (IBNET) is an initiative to encourage water and sanitation utilities to compile and share a set of core cost and performance indicators. IBNET also provides support to new and existing benchmarking schemes. IBNET is funded by DFID in partnership with the World Bank and the Water and Sanitation Program (WSP).