Skip to main content
BelowGrid

Who owns the water service line in South Gate, CA

Which part of the pipe is yours

your buildingproperty linesidewalkstreetmain
The thick length is yours.

If something’s wrong

Who to call first about the water service line

City of South Gate Water Division 323-563-5790

When to call: to report a leak or request a repair

What happens: the police dispatcher contacts the Water Division's on-call staff

Hours, after-hours and sources

Who is responsible for which part

Who to call first

City of South Gate Water Division

When to call: to report a leak or request a repair

323-563-5790

Answered: Monday to Thursday, 6:30 am to 5:00 pm

South Gate Police Department: (323) 563-5436

What happens: the police dispatcher contacts the Water Division's on-call staff

Source 1Source 2

The City's Water Division supplies most of South Gate and draws the line at the meter. Its leak flyer says: "If the leak is coming from the inlet side of the meter that is closest to the street, then it is South Gate's responsibility." It also says: "If the leak is on the outlet side of the meter that is past the customer shutoff valve, then it is the customer's responsibility." The City's 2024 service line survey describes the pipe on your side as "the underground pipeline located between the City's water meter and your building facility/house". This is South Gate's own statement.

South Gate
Leaks on the run from the main to the meter. The Water Division's flyer puts a leak on "the inlet side of the meter that is closest to the street" on the City, and among the emergencies it asks customers to report is a service line leak, with "water leaking in the parkway". The City's survey calls the meter "the City's water meter". Neither document says who owns the pipe between the main and the meter, or who replaces it when it wears out rather than leaks, and the municipal code has no water service regulations that say so.
The property owner
The pipe from the meter to the house. A leak "on the outlet side of the meter that is past the customer shutoff valve" is the customer's responsibility, in the flyer's words. The City's 2024 survey inventoried "all the private plumbing systems to document the material of the underground water pipeline connecting to the City's water meter", and says that where a lead line is found the City will contact customers about replacement "only if a lead service line is found serving their property, in which case the property owner will be responsible for its replacement".

What else is worth knowing

Three things are worth knowing before relying on this. First, the flyer describes the two ends and not the middle: the City has the inlet side of the meter, and you have the outlet side "past the customer shutoff valve". A leak at the meter itself, or between the meter and your shutoff valve, is not assigned by either sentence, so ring the Water Division before paying for work there. Second, these are a customer flyer and a survey notice, not an ordinance: South Gate's municipal code has no water service regulations, and the City can reword a flyer without a council vote. Third, check who bills you. The City says its "water district encompasses 90% of the City", and the State's service-area register puts the City's system over about 91% of the city's land. The City's 2025 Urban Water Management Plan says that "water service to the Hollydale area is provided by Golden State Water Company", and the register puts about 7% of the city in Golden State Water Company's Hollydale system; the Water Division's page says "Residents in the Hollydale area of South Gate are served by Golden State Water Company and must call 800-999-4033." If Golden State Water bills you, its own rules apply, not these. The same plan names Tract 180 Water Company and Tract 349 Mutual Water Company as serving small areas along the Cudahy edge, and Walnut Park Mutual Water Company a small area at the border; if one of them bills you, its own rules apply. Not every address in the city is on a mapped water system.

Sources

City of South Gate, Public Works Water Division, Reporting Water Emergencies (2019) - "Leak Responsibility?"

Also quoted:

Checked

What South Gate reported to the State about service-line materials

Federal rules required every community water system to inventory its service lines and publish the result. These are the figures this one filed.

The inventory records what each line is made of: lead, galvanized requiring replacement, non-lead, or lead status unknown. “Still unclassified” counts the lines whose material has not been identified. It does not mean they are lead.

South Gate has classified more of its service lines than most of California: 0.00% of its lines are unclassified, against 9.2% statewide.

Service lines reported
14,452
Still unclassified
0 (0.00%)
Across California, 9.2% of service lines are unclassified.
Share of service lines still unclassified
  • South Gate0.00%
  • California9.2%

What this page cannot tell you

  • This describes who is responsible for which part of the pipe. It is not a record of what your own service line is made of.
  • The State's service area map puts 91% of South Gate's land inside the boundary it maps for the city's own water system. Within the same city limits it also maps "GSWC - HOLLYDALE" (7%). A share of land is not a share of homes: open space counts the same as a dense block. Measured 3 Oct 2026.
  • Classified does not mean inspected. Across California only 22% of service lines were established by field inspection; most of the rest come from records, the year of construction, or a predictive model.
  • These figures were submitted to the State by the water system itself and were read on 4 Sep 2026. They may not reflect its current inventory - ask the water system to confirm anything about a specific address.
South Gate: official site

Your other pipe: the sewer lateral

The sewer lateral leaving your property is a separate pipe, run by a separate authority, and who is responsible for it is decided separately. In many places the two answers are opposites.

Sewer lateral requirements in South Gate, CA

Look up a specific address

This page describes what applies to properties in South Gate in general. To see which authorities serve one address, and what records exist for it, search for it.

Search for an address

How this compares across California