Before revision: The PTRC acknowledged that they do not monitor the entire site for leaks, rather primarily above the part of the Weyburn field where is injected and key locations outside it, but the organization did monitor the Kerr's well between 2002 and 2006, finding no appreciable difference in water quaility .
After revision: The PTRC acknowledged that they do not monitor the entire site for leaks, rather primarily above the part of the Weyburn field where is injected and key locations outside it, but the organization did monitor the Kerr's well between 2002 and 2006, finding no appreciable difference in water quality .