Weekly Update for Week of April 18th

National Grid’s contractor has completed installation of three of the five well clusters and has started installing the fourth and fifth clusters. Topsoil was brought onto site for the planting beds.

CAMP data is reviewed and compared to specific NYSDEC/NYSDOH approved criteria, known as “Action Limits.” As a result of this evaluation process, site conditions are categorized into two categories, “Operational Condition” and “Action Condition.” The “Operational Condition” is applicable when the data is below the “Alert, Response and Action Limits”, and means that normal operations can continue. The “Action Condition” occurs when one or more of the fifteen minute average measurements for Dust (PM10), Total Volatile Organic Compounds (TVOC) or Odor Intensity are greater than the background or upwind measurement by the specified “Action Limits.” Reaching an Action Level requires corrective action or stopping work until the condition is addressed or abates. During the period from Monday, April 11, 2016 through Friday, April 15, 2016, two portable CAMP stations were in-use and measured TVOC and PM10. Fifteen-minute averages for TVOC and PM10 data remained below the Action Limit.

For the week of April 18, 2016, the recovery wells will continue to be installed and topsoil will be brought on site for the planting beds.