Skip to main content
BelowGrid

Who owns the water service line in Patterson, CA

Which part of the pipe is yours

  • Water service line

    Yours from the meter to your building

    Why, and what to do
  • Sewer lateral

    Yours from your property line to your building — if certain conditions are met

    Why, and what to do
your buildingproperty linesidewalkstreetmain
The thick length is yours. A dashed marker means the position depends on your property — see below.

If something’s wrong

Who to call first about the water service line

BelowGrid has no first-call guidance on file from Patterson about the water service line.

The documents this answer is built on

Who is responsible for which part

Patterson maintains the service line up to and including the meter, and the customer has everything after it. The City's lead service line inventory page states that "The city operates and maintains the pipe from the main up to and including the water meter. The customer's responsibility begins after the water meter and all the pipes downstream going towards the home." This is Patterson's own statement.

Patterson
The pipe from the main up to and including the meter. The municipal code keeps the service connection City property, whether on public or private land, and has meters owned by the City.
The property owner
Everything after the meter - all the pipes downstream towards the home. The code adds that materials the owner furnishes for the service inside the curb or property line remain the owner's, to be maintained and repaired at the owner's expense.

What else is worth knowing

The line is the meter, which the code places at the curb or at or near the property line. The State's register puts the City's system over about 78% of Patterson; the rest, about 22%, is ground inside the city limits that no published water service area reaches - not a rival utility, and not necessarily unserved. Check the name on your water bill.

Sources

City of Patterson, Lead Service Line Inventory - what is a water service line

Also quoted:

Checked

What Patterson 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.

Patterson 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
7,132
Still unclassified
0 (0.00%)
Across California, 9.2% of service lines are unclassified.
Share of service lines still unclassified
  • Patterson0.00%
  • 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 78% of Patterson's land inside the boundary it maps for the city's own water system. A share of land is not a share of homes: open space counts the same as a dense block. Measured 25 Sep 2026.
  • Classified does not mean inspected, and this system inspected less than most. Patterson established 6.4% of its classifications by field inspection, against 22% across California; 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.
Patterson: official site

Your other pipe: the sewer lateral

For the sewer lateral, Patterson says:

Patterson splits the sewer lateral at the property line: the owner keeps the building sewer on the private side, and the City maintains the lateral sewer in the street - once there is a cleanout at the property line. The code provides that "Building sewers shall be maintained by the owner of property served hereby. Lateral sewer will be maintained by the city."

Your sewer lateral is yours to the property line; your water line stops being yours at the meter.

Same trench, separate authorities, decided separately.

Who pays for the sewer lateral in Patterson, CA

Look up a specific address

This page describes what applies to properties in Patterson 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