APWA CERTIFIED PUBLIC INFRASTRUCTURE
INSPECTOR
White ......ANSWER......Proposed excavation
Pink ......ANSWER......Temporary survey marks
Red ......ANSWER......Electrical power lines, cables, conduit and lighting
cables
Yellow ......ANSWER......Gas, oil, steam, petroleum, or caseous materials
Orange ......ANSWER......Communication, alarm or signal lines, cables or
conduit
Blue ......ANSWER......Potable water
Purple ......ANSWER......Reclaimed water, irrigation and slurry lines
Green ......ANSWER......Sewer and drain lines
pg. 1
INSPECTOR
White ......ANSWER......Proposed excavation
Pink ......ANSWER......Temporary survey marks
Red ......ANSWER......Electrical power lines, cables, conduit and lighting
cables
Yellow ......ANSWER......Gas, oil, steam, petroleum, or caseous materials
Orange ......ANSWER......Communication, alarm or signal lines, cables or
conduit
Blue ......ANSWER......Potable water
Purple ......ANSWER......Reclaimed water, irrigation and slurry lines
Green ......ANSWER......Sewer and drain lines
pg. 1
