Water Service and Meters

Summary

A water service is the tap on the public main, the service line, the curb stop, and the meter that deliver water to a building, usually owned partly by the utility and partly by the owner. Ownership usually changes at the curb stop or property line, so the point of responsibility and the utility's tap and relocation rules must be confirmed before planning a new or moved service.

Cols

Image

Water Service and Meters.jpg

Source: the public water main, operated by a municipal or private water utility
Delivery: tap and corporation stop on the main, service line, curb stop and box near the property line, meter in a pit or inside the building, then the building's water piping
Interface: the building side begins at the meter or the first valve inside; see Domestic Water Piping and Backflow Preventers for the building side

Terminology

Tap / saddle: connection made to the main, with a corporation stop
Corporation stop: valve at the main
Service line: pipe from the main to the meter or building
Curb stop / curb box: shutoff valve and access box, usually near the property line
Meter pit / setting: enclosure or setting where the meter sits
Service ownership: the split between utility-owned and owner-owned parts of the service

Components

Tap and corporation stop
Service pipe: copper, polyethylene, or other utility-approved pipe
Curb stop and box
Meter and meter setting: with a shutoff and a backflow device where required
Backflow preventer: at the service where required; see the backflow note
Trench and bedding: see Pipe Bedding

Coordination

Ownership varies: many utilities own the line from the main through the curb stop, and the owner owns from there into the building; some codes place the boundary at the property line, and meter pit ownership varies
Curb stop location: usually at the property line; one utility moves a curb stop that is not near the property line during repair or replacement
Applicant duties: the applicant restores streets, sidewalks, and other property disturbed by a tap
Tap and meter: sizes, fees, and the tap crew are set by the utility; request them early
Fire service: a combined or separate fire line follows its own rules; see Fire Service and Hydrants
Locates: call 811 before excavating; marked lines are in a tolerance zone, commonly 18 or 24 in. depending on state, where digging is by hand

Relocation and disconnection

Check ownership first: the utility moves or replaces what it owns; the owner moves what the owner owns
Who pays: a utility generally relocates its facilities at its own expense for public works, but not when a private developer's work makes the relocation necessary; several states and local ordinances put the cost on the developer or customer; confirm with the utility's rules, franchise, and state law
Moving a service: a new tap, service line, and meter location follow the same application as a new service
Retiring a service: the utility sets how a service is shut off at the main and how the curb stop and meter are removed; confirm requirements before demolition
Temporary service: for construction, request a temporary meter or hydrant meter
Do not disturb: do not operate the corporation stop, curb stop, or main valves without the utility

Manufacturing and cost

Main manufacturers and suppliers

Sources

Southwest Metropolitan Water and Sanitation District: meter and curb stop responsibility, https://www.swmetrowsdco.gov/meter-and-curb-stop-responsibility-e1acf5e0-9e33-479f-8fed-48b80cc37f69
City of Fort Collins: water service line repairs, https://www.fcgov.com/utilities/what-we-do/water/water-distribution/water-service-line-repairs
Village of Heyworth, IL: municipal code on service lines, https://codelibrary.amlegal.com/codes/heyworthil/latest/heyworth_il/0-0-0-4230
Minnesota Lawyer: developers pay the cost of relocating utility lines, https://minnlawyer.com/2025/06/23/minnesota-becomes-the-latest-state-to-require-developers-to-pay-the-cost-of-relocating-utility-lines/
U.S. Court of Appeals, Eighth Circuit: utility relocation opinion, https://ecf.ca8.uscourts.gov/opndir/09/07/083542P.pdf
North Carolina 811: safe digging guide, https://nc811.org/wp-content/uploads/2025/11/2025_safe_digging_guide-ENGLISH.pdf
Image: Uncovered meter box in Avonhead, Christchurch 2022-10-27.jpg, Thomas Booker (CoderThomasB), CC0, https://commons.wikimedia.org/wiki/File:Uncovered_meter_box_in_Avonhead,_Christchurch_2022-10-27.jpg