The effects of historic abstraction of groundwater from the London Basin aquifers on groundwater quality

Strontium isotopes as tracers of groundwater-induced floods: the Somme case study (France)

“…These data agree with previous values found in rivers draining the Paris Basin (e.g. the Seine, Roy et al, 1999) and those of groundwater in the Chalk aquifer in the London Basin (Edmunds et al, 1987;Kinniburgh et al, 1994) and in the Paris basin (Kloppmann, 1995), and with mean groundwater contents in the Chalk aquifer of the Somme watershed (Bouttemy et al, 1981).…”

“…The water-temperature ranges in surface water increased slightly compared to those of groundwater (11.9-13.7, 11.7-15.2, 11.3-14.6 8C for the three surveys (Table 1). The pH of groundwater showed slight variations with values ranging from 7 to 7.6, closely agreeing with earlier work on the Chalk aquifers (Edmunds et al, 1987;Kinniburgh et al, 1994;Kloppmann, 1995). The pH of river water showed a wider range, with values from 7.79 to 8.33 though without any discernible seasonal influence.…”

“…Such a range was earlier suggested for the Chalk aquifers by several authors (Conrad et al, 1979 in Normandy;Kloppmann et al, 1998 in the Paris Basin). As stated by Edmunds et al (1987), Kinniburgh et al (1994) and Kloppmann et al (1998), there is an overall depletion in heavy isotopes in the Chalk aquifer in the London and Paris basins from recently recharged waters towards palaeowater. Such fossil waters, with more depleted signatures (d 18 O around K8‰), were not identified in this study.…”

Hydrogeochemistry of seepage water collected within the Youngcheon diversion tunnel, Korea: source and evolution of SO4‐rich groundwater in sedimentary terrain

“…This suggests that the sulphate content in water does not appear to be controlled only by the pyrite content in rocks (cf. Kinniburgh et al, 1994). In order to reach very high concentrations of SO 4 , it is necessary for the oxidant to be mobile and the seepage water to be relatively immobile.…”

Influence of Triassic deposits on water quality of some karstic aquifers to the south of Alicante (Spain)

“…The literature contains relatively frequent examples in which heavy pressure on the groundwater resources are accompanied by a deterioration in the physico-chemical quality of the water (Custodio, 1993;Vengosh & Rosenthal, 1994;Kinniburgh, et al, 1994;Pulido-Bosch et al, 1996;Vrba, 2003). Intensive abstractions from aquifers can mobilize poor quality water and generate mixing processes.…”