The people on the conference call discussed an action level as low as 5 parts per billion, which two water board employees questioned. (thelensnola.org)
But it is dependent on local governments, schools, and other taxing entities, like water boards and library boards, holding the line on spending. (nynow.wmht.org)
One science teacher had students work with the local water board to sample water purity in a nearby stream. (educationworld.com)