PGV plans new well

[Justin]

I have a question regarding gas measurements. How would the County (or Ormat, or whomever) accurately measure the chemicals near the plant without that reading being influenced from the "normal" air that exists because of the nearby active volcano. In other words, if there are 100 ppm of SO2 1 mile from the plant, is that because of the plant or because of Kilauea? It would seem you'd need measurements at a number of various places between Pu'u O'o and the plant to try to distinguish the confounding variables.