For instance, a recent evaluation of PROSSAPYS (Programa para la Sostenibilidad de los Servicios de Agua Potable y Saneamineto en Communidades Rurales) found that some rural and marginalised areas have not made full use of the resources they were provided because PROSSAPYS does not have a strategic planning mechanism in place to direct the efforts and allocation of resources to the areas in greater need, (Dominguez, 2012). The programme’s reliance on INEGI’s definition of rural area (less than 2 500 inhabitants), even though some of the localities targeted are above this threshold yet still have rural patterns, may also contribute to the lack of funds distributed to in-need areas. In addition, PROSSAPYS, Clean Water Programme (PAL) and APAZU could be better co-ordinated to support highly marginalised rural and urban zones in the first range, i.e. localities below 2 500 inhabitants and between 2 500 to 14 999 inhabitants.