Do household surveys estimate tap water use accurately? Evidence from pressure-sensor based estimates in Coimbatore, India

Apoorva, R. and Biswas, Durba and Srinivasan, Veena (2018) Do household surveys estimate tap water use accurately? Evidence from pressure-sensor based estimates in Coimbatore, India. Journal of Water, Sanitation and Hygiene for Development, 8 (1). pp. 1-12. ISSN 2043-9083

[img] Text
Journal of Water, Sanitation and Hygiene for Development_Apoorva R._Durba Biswas_Veena Srinivasan_2018.pdf - Submitted Version
Restricted to Registered users only

Download (417kB) | Request a copy

Abstract

Quantifying domestic water use at the household scale is crucial for any policy interventions towards ensuring adequate, equitable and safe water access. In developing country contexts, piped water supply is often one of several sources from which households access water and this is often unmetered. The most common approach to quantifying household water use from multiple sources is through household surveys. But there is no evidence that household surveys accurately estimate water use. This study utilized high-resolution pressure sensor data as a reference to evaluate the effectiveness of conventional household survey methods through a sample of 82 households in Coimbatore city in South India. The pressure sensors produced detailed, continuous and accurate information on all sources of water accessed through the household storage infrastructure, but they were expensive and intrusive. Compared with pressure-sensor derived estimates of tap water use, household surveys alone fared very poorly. However, household surveys and well designed water diaries of supply and pumping coupled with simple one-time field measurements emerged as a valid approach to quantifying household water use from taps under multiple source dependence.

Item Type: Article
Additional Information: Copyright of this article belongs to IWA Publishing.
Uncontrolled Keywords: Tap water use, Coimbatore, India, Domestic water use, household water use, household surveys, pressure sensors, Water Balance method,
Subjects: C Publications by ATREEians > K Popular Articles
Divisions: Publications by ATREEians > Popular Articles
Depositing User: Ms Kalpana S
Date Deposited: 11 Apr 2018 07:22
Last Modified: 11 Apr 2018 07:22
URI: http://eprints.atree.org/id/eprint/579

Actions (login required)

View Item View Item