- This mailer supplements National Grid’s annual pipeline public awareness program (PPAP) Excavator Baseline mailing with messages that address knowledge gaps identified through research with this audience. Tips focus on 811 notification and gas leak recognition and response. Includes high-impact photos to increase awareness of specific natural gas leak warning signs. The mailer includes a chart with state-specific 811 wait times to help excavators schedule their 811 notification and subsequent excavation start date; this chart is designed to be detached and saved for reference.Audience: ExcavatorsRegion(s): New England, Upstate New York, Downstate New YorkDate published: December 2019Project: 11853 Product: 97730 (NE), 97735 (UNY), 97725 (DNY)Download PDFs: New England Upstate New York Downstate New York