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pure and applied geophysics

, Volume 120, Issue 2, pp 330–347 | Cite as

Estimation of the percentage of annual groundwater recharge with bomb tritium using a cumulative mass balance method

  • Boniface C. E. Egboka
  • John A. Cherry
  • Robert N. Farvolden
Article
  • 71 Downloads

Abstract

The bomb tritium (3H) distribution patterns in the aquifer beneath an abandoned landfill at the Canadian Forces Base (CFB) Borden, Ontario, and in a sandy aquifer at Whiteshell Nuclear Research Establishments (WNRE) Pinawa, Manitoba, all in Canada, were delineated in great detail. A sampling and monitoring network of multilevel samplers and bundle piezometers were used. The directions of groundwater flow were established, and the boundary between the tritiated and non-tritiated zones of the two aquifers were closely demarcated. Using a cumulative mass balance method, the3H input mass into the aquifers was compared with the3H mass in groundwater storage to estimate the percentages of annual groundwater recharge from 1953 to 1978. Two recharge calculations for theeffective recharge zone and thetotal recharge area of the aquifers as established from the flownet analysis, and the distributions of dissolved geochemical constitutents showed that theeffective recharge zone calculations gave higher values of 30.6 cm/yr for CFB Borden and 20.1 cm/yr for WNRE while thetotal recharge areas gave lower values of 19.1 and 10.1 cm/yr for the Borden and WNRE aquifers respectively. The two recharge values provide possible minimum and maximum recharge estimates for the two study areas.

Key words

Groundwater recharge Bomb tritium in groundwater 

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References

  1. Allison, G. B., andHughes, M. W. (1978),The Use of Environmental Chloride and Tritium to Estimate Total Recharge to a Unconfined Aquifer, Aust. J. Soil Res.16, 181–195.Google Scholar
  2. Atakan, Y. (1972),Bomb Tritium Hydrology of a Sandy Unconfined Aquifer, Unpubl. Ph.D. Thesis, University of Heidelberg, Germany, 102 pp.Google Scholar
  3. Egboka, B. C. E. (1980).Bomb Tritium as an Indicator of Dispersion and Recharge in Shallow Sand Aquifers, Unpubl. Ph.D. Thesis, University of Waterloo, Waterloo, Ontario, Canada, 190 pp.Google Scholar
  4. MacFarlane, D. S., Cherry, J. A., Gillham, R. W., andSudicky, E. A. (1980).Hydrogeological Studies of an Abandoned Landfill on a Sandy Aquifer: Physical Hydrogeology, J. Hydrol. (in submittal).Google Scholar
  5. Payne, B. R. (1972),Isotope Hydrology, Adv. Hydrosci.8, 95–138.Google Scholar
  6. Pickens, J. F., Cherry, J. A., Grisak, G. E., Merritt, W. F., andRisto, B. A. (1978),A Multilevel Device for Groundwater Sampling and Piezometric Monitoring, Groundwater16, 322–327.Google Scholar
  7. Rabinowitz, D. D., Gross, G. W., andHolmes, C. R. (1977).Environmental Tritium as a Hydrometeorological Tool in the Rosswell Basin, New Mexico, I, II and III, J. Hydrol.32, 3–17, 19–33 and 35–46.Google Scholar
  8. Smith, D. B., Wearn, P. L., Richards, H. J., andPowe, P. C.,Water Movement in the Unsaturated Zone of High and Low Permeability Strata by Measuring Natural Tritium, inIsotope Hydrology (I.A.E.A., Vienna 1970), pp. 73–87.Google Scholar
  9. Sukhija, B. S., andShah, C. R. (1976).Conformity of Groundwater Recharge Rate by Tritium Method and Mathematical Modelling, J. Hydrol. 30, 167–178.Google Scholar
  10. Verhagen, B. Th., Mazor, E., andSellschop, J. P. F. (1974).Radiocarbon and Tritium Evidence for Direct Rain Recharge to Groundwaters in North Kalahari, Nature249.Google Scholar
  11. Verhagen, B. Th., Smith, P. E., andGeorge, I. (1978).Tritium Profiles in Kalahari Sands as a Measure of Rain Water Recharge, IAEA Int. Symp. on Isotope Hydrol., Neuherberg, IAEA-SM-228/36.Google Scholar
  12. Vogel, J. C., Thilo, L., andVan Dijken, M. (1974),Determination of Ground-water Recharge with Tritium, J. Hydrol.23, 131–140.Google Scholar

Copyright information

© Birkhäuser Verlag 1982

Authors and Affiliations

  • Boniface C. E. Egboka
    • 1
  • John A. Cherry
    • 2
  • Robert N. Farvolden
    • 2
  1. 1.Department of GeologyUniversity of NigeriaNsukkaNigeria
  2. 2.Department of Earth SciencesUniversity of WaterlooWaterlooCanada

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