GANDHINAGAR: Despite huge claims of rise in water tables across Gujarat and simultaneous improvement in groundwater levels because of tens of thousands of watershed projects, checkdams, village ponds and other recharge structures, an authoritative report suggests there is, if at all, marginal improvement. In fact, even in North Gujarat, where Sujalam Sufalam recharge canal runs across 360-km, water tables appear to have gone down. Also, the quality of water in this region has deteriorated.