N.M. Stat. § 62-14-5.1
Uniform color code for location of underground facilities.
In marking an excavation site and the location of underground facilities, both the
excavator and the owner or operator shall use the following uniform color code:
A. blue for water;
B. green for sewer;
C. orange for communications or coaxial cable;
D. pink for survey;
E. purple for reclaimed water;
F. red for electric;
G. white for proposed excavation area; and
H. yellow for gas.