Scott Anderson's "Foolproof Cure for Wet Basements" (12/05) is a great article with a lot of helpful detail.
One additional step that could help homeowners would be to check the radon levels in the basement during the excavation work. In homes west of the Mississippi, you can use an $80 radon detector for a period of three to four days in the basement. If the radon levels are higher than the recommended minimums, the interior perimeter drainage system...
to read the full article.