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Comparison of 85KR and 3H Apparent Ground-Water Ages for Source Water Vulterability in the COLLYER RIVER CATCHMENT, MAINE

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Citation:

SIDLE, W. C. Comparison of 85KR and 3H Apparent Ground-Water Ages for Source Water Vulterability in the COLLYER RIVER CATCHMENT, MAINE. K. J. Lanfear (ed.), JOURNAL OF AMERICAN WATER RESOURCES ASSOCIATION. American Water Resources Association, Middleburg, VA, 44(1):14-26, (2008).

Impact/Purpose:

To inform the public.

Description:

Apparent ground-water ages as determined by the noble gas isotope 85Kr and the water isotope 3H are compared. Refined gas extraction methodology at the wellhead permits efficient collection of Kr for 85Kr isotope enrichment. 85Kr isochrones elucidate areas of much younger ground-water ages than 3H. Declining 3H activities in the catchment prevent its correlation with the youngest measured 85Kr ages. Source water for most drinking water supplies in the Collyer River catchment is recharged within 40 years BP (2004). Mean-age (t) transport modeling suggests uncertainty of ground-water ages is greatest in the central basin area.

Record Details:

Record Type:DOCUMENT( JOURNAL/ PEER REVIEWED JOURNAL)
Product Published Date:02/01/2008
Record Last Revised:03/26/2008
OMB Category:Other
Record ID: 151789