Metabolic Urbanism and Environmental Justice: The Water Conundrum in Bangalore, India

Mehta, Vishal K.; Goswami, Rimi; Kemp-Benedict, Eric; Sekhar, M.; Malghan, Deepak

doi:10.1089/env.2014.0021

Cited by 16 publications

(22 citation statements)

References 7 publications

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“…Cluster 1 is characterized by the outer periphery, which has significant open space, less water supply from BWSSB and significant groundwater usage. Detailed water supply analysis in [26,36] illustrate that the fast-growing outer areas receive much less water supply than the core areas. Cluster 2 is the inner periphery characterized by moderate groundwater usage, moderate supply of water from BWSSB and moderate open space.…”

Section: Clustering Resultsmentioning

confidence: 99%

“…Typically, January and February receive almost no rain. Except for a few central areas in the old city core, the population growth between 2001 and 2011 has been positive with some outer areas reaching a growth of more than 300% [26]. The water needs of the city are mainly met by surface water supply from Cauvery River, and from groundwater.…”

Section: Study Areamentioning

confidence: 99%

“…Furthermore, the temporal frequency of monitoring by CGWB is once every few months. Hence, even though this dataset might reveal some larger, regional scale groundwater behavior over many years, it is not useful for assessing the state of the urban groundwater system; Except for a few central areas in the old city core, the population growth between 2001 and 2011 has been positive with some outer areas reaching a growth of more than 300% [26]. The water needs of the city are mainly met by surface water supply from Cauvery River, and from groundwater.…”

Section: Study Areamentioning

confidence: 99%

“…The water needs of the city are mainly met by surface water supply from Cauvery River, and from groundwater. Surface water imported from the Cauvery River, currently at close to 1400 million liters per day (MLD), is approximately 75% of the average rainfall over the city, signaling the substantial anthropogenic influence on the urban water budget [26]. Non-revenue water, made up largely of leakage losses, was almost 50% in 2011 [24].…”

Section: Study Areamentioning

confidence: 99%

“…Non-revenue water, made up largely of leakage losses, was almost 50% in 2011 [24]. Although surface water supply has increased over time, it has been unable to catch up with the rapid growth and expansion of the city [26]. As a result, groundwater provides a large proportion of the current water consumption, and is likely to continue to do so in several wards of the municipality, which is called called Bruhath Bengaluru Mahanagara Palike (BBMP) (see Figure 3).…”

Section: Study Areamentioning

confidence: 99%

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Groundwater Level Dynamics in Bengaluru City, India

Sekhar

Tomer²,

Thiyaku³

et al. 2017

Sustainability

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Abstract:Groundwater accounts for half of Indian urban water use. However, little is known about its sustainability, because of inadequate monitoring and evaluation. We deployed a dense monitoring network in 154 locations in Bengaluru, India between 2015 and 2017. Groundwater levels collected at these locations were analyzed to understand the behavior of the city's groundwater system. At a local scale, groundwater behavior is non-classical, with valleys showing deeper groundwater than ridge-tops. We hypothesize that this is due to relatively less pumping compared to artificial recharge from leaking pipes and wastewater in the higher, city core areas, than in the rapidly growing, lower peripheral areas, where the converse is true. In the drought year of 2016, groundwater depletion was estimated at 27 mm, or 19 Mm 3 over the study area. The data show that rainfall has the potential to replenish the aquifer. High rainfall during August-September 2017 led to a mean recharge of 67 mm, or 47 Mm 3 for the study area. A rainfall recharge factor of 13.5% was estimated from the data for 2016. Sustainable groundwater management in Bengaluru must account for substantial spatial socio-hydrological heterogeneity. Continuous monitoring at high spatial density will be needed to inform evidence-based policy.

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Section: Clustering Resultsmentioning

confidence: 99%

Section: Study Areamentioning

confidence: 99%

Section: Study Areamentioning

confidence: 99%

Section: Study Areamentioning

confidence: 99%

Section: Study Areamentioning

confidence: 99%

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