31.  School yards, underground water pipes, culverts.

32.  Sawyer said the exports would require drilling of more wells that will damage the environment, possibly leaking gas into underground water, polluting the air or scattering wildlife.

33.  Similarly, he said, there are heterogeneous parts of the earth like fractures and underground water that might react before an earthquake.

34.  Some of the leakage from the tanks has dumped radioactivity into underground water, and from there, into the Columbia River.

35.  Some scientists say the crystals are evidence of intermittent upwellings of underground water, which would speed the spread of radioactive materials stored in the mounthain.

36.  Strickland said the timing was important because of concern that installing the pipe could make it difficult to flush the drilling mud out of underground water passages.

37.  That would mean hot underground water has invaded the mountain and might again in the time when radioactive waste would still be extremely dangerous.

38.  The bureau supports local underground water districts but also supports private property rights, he said.

39.  The existence of tritium, if confirmed, would indicate that if radioactive waste were buried at the site, it could migrate rapidly and contaminate underground water.

40.  The injected fresh water would form a bubble around existing underground salt water and could be pumped back up when it is needed.