Dear Dr  Kumar

geology and continuous monitoring of data on ground water levels and quality wll
show some light, having given the same, points of measurement, contour will give
direction and then hydrology will give amount or depth of flow. does the rising
trend appear in agricultural sector also. you mentioned that reduced gw
extraction, it may be theoretically, after all hydrological water balance should
also reveal it, in addition to energy balance and climatic water balance.
may you if possible, get me the actual points of observation with its
coordinates of location, data sets, may be we can try to contact central ground
water board western region, rajasthan board, and so other ngo, for gathering
similar information.
thanks and regards

Dr. M. K. Khandelwal, Principal Scientist
Central Soil Salinity Research Institute (ICAR)
Regional Research Station
Bharuch 392012 (Gujarat), India
Telefax:+91 2642 225673
Phones: +91 2642 225688 and 225805 (Res)
Mobile: +91 9426861962


--- On Sat, 8/1/09, C. P. Kumar <cpkumar@...> wrote:

From: C. P. Kumar <cpkumar@...>
Subject: [rhydrology] Rising groundwater levels in Jodhpur City, India
To: rhydrology@yahoogroups.com
Date: Saturday, August 1, 2009, 6:10 PM

Dear Friend,

Jodhpur, a major city of Western Rajasthan in India, has been experiencing the
problem of rising groundwater levels in many parts of the city for last 11
years, after commissioning of the Rajiv Gandhi Link Canal (RGLC) which brings
canal water to Jodhpur city and stores water in Kailana lake located west of
Jodhpur city. Basements of buildings are being flooded in many parts of the
city. There can be one or more of the following probable reasons for rising
groundwater levels in Jodhpur city.

(1) Seepage from Kailana lake due to presence of lineaments/joints in Rhyolite
rock.

(2) Presence of impervious sandstone basement at shallow depth below the porous
Rhyolite aquifer in the city area.

(3) Seepage from pipelines carrying lake water.

(4) Leakage of used household water from unlined drain system.

(5) Reduced groundwater extraction from existing borewells and handpumps after
commissioning of RLGC.

For the above case, what would be the appropriate methodology to find the actual
reasons for rising groundwater levels in Jodhpur city and appropriate short-term
and long-term management plans for maintaining the groundwater levels at a safe
level.

Regards
Kumar