21. _Shield manufacturers of the gasoline additive MTBE from product liability lawsuits arising out of contamination of underground water supplies . 22. Officials say that heavy rains may have washed cow manure infected with the bacterium into the underground water supply . 23. The pollution from factories, cities and chemically treated fields was affecting underground water supplies as well, the report said. 24. The river has a sustainable underground water supply in both summer and winter, never drying up or freezing through. 25. The biggest question is how much radioactive material would gradually escape and be washed by rain into underground water supplies . 26. But they have little experience studying whether rain water could wash radioactive materials through the soil into underground water supplies . 27. The problem wells draw water from the Cohansey aquifer, one of three underground water supplies tapped by the water company. 28. Work was reauthorized in 1942 as a national defense project, with dams and locks to protect the underground water supply . 29. Since the material remains radioactive for thousands of years, even slow movement through soil can ultimately threaten underground water supplies . 30. The area is an emerging centre for grapes and melons due to its year-round sunshine and abundant underground water supply .
