3.17 Practices to Reduce Overnotifications
The 811 center employs practices designed specifically to reduce the number of notices transmitted to facility owners/operators in which the reported excavation site is outside the owner’s/operator’s desired area of notification.
The 811 center employs technology that enables the facility owner/operator to determine its desired area of notification by either polygons or grids. To reduce overnotifications, technology includes, but is not limited to, the following:
- Enables the 811 center to define the proposed excavation site buffer to within approximately 800 ft
- Enables the facility owner/operator to identify its desired area of notification to within approximately 100 ft
“Model One Call for the 20th and 21st Century,” AT&T (was available when the practice was created but is no longer available)
Existing operating practices from various states’ 811 centers
NTSB Safety Study (NTSB/SS-97/01; PB97-917003)