The service line runs from the meter to the house and it is the homeowner's responsibility on most Wichita properties. When it fails you see it as a wet patch in the yard, a drop in pressure, or a water bill that has climbed with no change in usage.
Older service lines are often galvanised steel, which corrodes internally and narrows over decades, so pressure drops long before it actually leaks. Replacement in that case solves a pressure problem as well as a leak.
The replacement can often be pulled through rather than trenched along its full length, which matters on a property with a mature yard or a driveway in the way.
Technician insight
A pressure drop that has crept up over years, rather than appearing suddenly, usually points to a narrowing galvanised service line rather than a municipal supply issue.