1 NOTICE: this is the author’s version of a work that was accepted for publication in Journal of Hydrology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Hydrology, 315, 308-324. 2005. DOI: 10.1016/j.jhydrol.2005.04.016. Recharge velocity and geochemical evolution for the Permo-Triassic Sherwood Sandstone, Northern Ireland Cronin, A.A. *1 , Barth, J.A.C. 2 , Elliot, T. 3 , Kalin, R.M. 3 PLEASE NOTE: There is a ‘Correction to manuscript ‘‘Recharge velocity and geochemical evolution for the Permo-Triassic Sherwood Sandstone, Northern Ireland’’ [Journal of Hydrology 315 (2005) 308–324]’ by J.A.C. Barth and A.A. Cronin published in Journal of Hydrology (2006) 330, 763–764 to which readers are directed (doi:10.1016/j.jhydrol.2006.04.001). This presents (see Table directly below) ‘Revised  18 O values for sites referred to in Table 2 of Cronin et al. (2005)’and “recharge now matches the corrected average groundwater value of -6.8‰ throughout most of the year, except for the months July, August and September that usually have less rainfall.” Table (Barth & Cronin, 2006): Revised d 18 O values for sites referred to in Table 2 of Cronin et al. (2005) Well Ref. No. Easting Northing d 18 O value corrected (‰) Well Ref. No. Easting Northing d 18 O value corrected (‰) 1 333500 372250 -6.5 21 328175 366332 -6.8 2 333370 370250 -6.9 22 328275 366500 -6.5 3 332560 369590 -5.2 23 315650 357750 -6.5 4 331070 370380 -6.6 24 317500 360700 -6.8 5 328780 369830 -6.6 25 318400 361400 -6.2 6 327810 369520 -6.4 26 314900 356300 -6.2 7 329740 368310 -6.1 27 319600 360500 -6.5 8 329760 368290 -6.8 28 327210 359760 -6.4 9 326950 367310 -6.6 29 331300 356250 -6.3 10 326490 367930 -6.7 30 321000 359000 -6.6 11 326880 368560 -6.5 31 347100 371400 -7.8 12 326950 368510 -6.5 32 347380 374520 -7.6 13 345390 370020 -6.5 33 344320 374790 -6.6 14 345940 369860 -6.4 34 327310 362140 -6.1 15 347950 371110 -6.3 35 329000 372000 -8.1 16 348000 373200 -6.6 36 320510 363970 -6.0 17 348210 371670 -6.5 37 329440 373750 -7.8 18 313510 358690 -6.9 38 335700 374550 -9.0 19 313510 358690 -6.8 39 348310 370590 -7.8 20 313510 358690 -7.0 40 322630 364510 -7.9 Easting and Northing values are according to the Irish grid reference system.