51.   The bacteria multiply and are inadvertently spread around in cleanup efforts.

52.   The company has been working to make the property attractive to buyers, and did not want its cleanup efforts scuttled by litigation, sources said.

53.   The cleanup effort can only profit from a full public airing.

54.   The cleanup effort, conducted under dreadful conditions, has been remarkable.

55.   The company plans a campaign, but the renewal of war has thrown cleanup efforts in doubt.

56.   The Department of Energy said the cleanup effort could begin within two months and could take years to complete.

57.   The flooding is subsiding but authorities say cleanup efforts should wait until the river drops another four or five feet.

58.   The sudden jump in the cost of treating tank waste is the latest impediment in the decade-long Hanford cleanup effort.

59.   The Superfund program has also come under criticism for spending too much money on litigation and administration and not enough on cleanup efforts.

60.   They said it would only add modest amounts of water to estuaries in the southern part of the park, and could undermine pollution cleanup efforts.