SDCL § 9-47-8: Classification of water pipes and mains.

Water pipes or mains are classified as:

(1) A service pipe or main is one designed to supply water to the property abutting upon the particular street or way in which it is laid;

(2) A trunk pipe is one designed to supply water to the property abutting upon the street or way in which it is laid and to other pipes or mains in a defined district or portion of the municipality;

(3) A supply pipe or main is any pipe, ditch, flume, conduit, or other appliance designed to conduct a supply of water from its source to the municipality.