41.   The wide range of estimates of the potential exposure of the industry reflects the uncertainty about the eventual cleanup costs and who will ultimately bear the burden.

42.   They usually include estimates of cleanup costs.

43.   Under the Superfund law, the government or private parties that face environmental cleanup costs can file suits to force others to share the expense.

44.   What an increase in the cleanup costs would do to that plan is unknown.

45.   White said he had no estimate on cleanup costs but doubted that the teen-ager could pay for the decontamination.

46.   With open land plentiful and no cleanup costs, rents are cheaper than in northern New Jersey.

47.   Critics blast Superfund for its reliance on litigation to recover cleanup costs.

48.   How much would a total cleanup cost?

49.   Many such plots go unused for years because of prohibitive environmental cleanup costs.

50.   Mobil has said it will pay cleanup costs where contamination is found.