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Water 2016, 8(4), 140; doi:10.3390/w8040140

Assessing Marginalized Communities in Mexico for Implementation of Rainwater Catchment Systems

Instituto de Ingeniería, UNAM, Circuito Escolar s/n, Delegación Coyoacán, Ciudad de Mexico, D.F. CP 04510, Mexico
Author to whom correspondence should be addressed.
Academic Editor: Ataur Rahman
Received: 19 September 2015 / Revised: 14 November 2015 / Accepted: 11 December 2015 / Published: 8 April 2016
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Mexico contains a high percentage of marginalized communities, as well as geographic areas with high annual precipitation (approximately 2000 mm). This study uses regional water access and precipitation data to determine municipalities that would most benefit from the installation of Domestic Rain Water Harvesting Systems (DRWHS). The main objective was to find a relationship between local conditions (marginalization, expected level of service, and precipitation) and the physical components of DRWHS. First, monthly precipitation and the number of inhabitants per household were determined for each municipality. Catchment area and tank size were then calculated for a single dwelling by municipality using water demand, run-off coefficient, monthly precipitation, and number of inhabitants per household. In general, municipalities with very low access to municipal water and very high precipitation were found in the southern area of the country. A curve that estimates catchment area based on annual precipitation was developed using the selected municipalities, which produced an average catchment area of 113.3 m2 for a water demand of 100 L/capita/day. While any DRWHS must be designed specific to local conditions, this study has determined that a regional approximation can be used to select ideal communities for these systems, which can in turn facilitate national implementation. View Full-Text
Keywords: rainwater; Mexico; catchment; domestic supply; water demand; marginalized communities; design rainwater; Mexico; catchment; domestic supply; water demand; marginalized communities; design

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Sámano-Romero, G.; Mautner, M.; Chávez-Mejía, A.; Jiménez-Cisneros, B. Assessing Marginalized Communities in Mexico for Implementation of Rainwater Catchment Systems. Water 2016, 8, 140.

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