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Who pays for the sewer lateral in Cupertino, CA

Which part of the pipe is yours

  • Sewer lateral

    Yours from the cleanout 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

If a repair needs a permit or an inspection

  • Before work on the pipe · Permit

    Who issues it:
    City of Cupertino City Engineer
    What it covers:
    going upon, over or under any public right-of-way, including excavation, whichever body collects the sewage

    Cupertino Municipal Code section 14.08.020 makes it "unlawful for any person to encroach or make or cause to be made any encroachment without first obtaining an encroachment permit from the City Engineer", and section 14.08.010 defines an encroachment to include "going upon, over or under a right-of-way", with excavation or disturbance and the placement or maintenance of any facility among its examples - a pipe is one. The permit is the City's, whichever body collects the sewage, so it reaches any lateral work in the street: an owner connecting the cleanout that Cupertino Sanitary District requires to the lower lateral, or an owner on the City of Sunnyvale's sewer working on the connection under the road.

The repair rule in full, with its sources

No rule on file here is specific to selling, buying, remodelling or adding a unit; that does not mean none exists.

Who to call first about the sewer lateral

BelowGrid has no first-call guidance on file from Cupertino about the sewer lateral.

Cupertino: official site(opens in a new tab)The documents this answer is built on

Who is responsible for which part

The City of Cupertino does not collect sewage itself. It states that it "contracts with external providers for water, sewer, and solid waste operations" and names two for sewer: Cupertino Sanitary District and the City of Sunnyvale. Its General Plan says "The majority of the City is served by the Cupertino Sanitary District". For the District's customers, section 4103 of its Operations Code splits the lateral at the cleanout: where there is a cleanout of four inches or larger, "District will be responsible for maintenance and repair of the lower lateral (from point of connection at the cleanout to sewer main)", and the cleanout and the pipe to the house are the owner's. The City of Sunnyvale collects from a small part of the city, and its own code does not state that split.

Cupertino
For Cupertino Sanitary District customers only, the lower lateral - the part of the side sewer in the public street. Where the main is in the street and there is a cleanout of four inches or larger, section 4103 provides that "District will be responsible for maintenance and repair of the lower lateral (from point of connection at the cleanout to sewer main)". Without a cleanout the District still takes the repair of a defective lower lateral: "if the lower lateral is determined to be defective and needs to be repaired, District will be responsible for such repair", with a new cleanout installed at the owner's expense. Where the main runs in an easement or a private street, the District's share is upkeep only, and only from an accessible cleanout: "District will service and provide maintenance to the lateral from said cleanout to the main". The District's own questions page puts it as providing "maintenance and repair of sewer laterals within the public street provided there is an accessible and serviceable cleanout at the property line".
The property owner
For Cupertino Sanitary District customers on a street main, the cleanout and the house lateral. Section 4103: "Cleanouts are owned, maintained and repaired by the property owner, including point of connection". Where there is no cleanout, "the entire upper lateral (from street right of way to the building) and lower lateral (from street right of way to the sewer main) shall be maintained by the property owner", apart from the District's repair of a defective lower lateral. Where the main is in a sewer easement, a private street or a public service easement, the whole run is the owner's: "All sewer laterals from the sewer main to the building are owned, maintained and repaired at the property owners' expense, including any costs associated with sanitary sewer overflow and spills." Where the main is in an easement or a private street, the District may also order work on a lateral that affects its main, and "Property owner will reconstruct or repair within 60 calendar days from said notice at the property owner's expense."

What decides which applies

Three things decide this, and the first is which body collects from the property. The City's General Plan says the City of Sunnyvale serves "commercial properties along Stevens Creek Boulevard, east of Finch Avenue, and a portion of the Rancho Rinconada neighborhood" - about a twentieth of the city's land on the City's own sanitary service provider map. Cupertino Sanitary District's code does not reach those properties. Sunnyvale's code, section 12.08.030, provides that "The connection to the city sanitary sewer, including the piping within any public street right-of-way, shall be installed at the sole expense of the owner of the property served", and does not say who maintains or repairs it afterwards; an owner there should ask the City of Sunnyvale before assuming any of the District's terms. The second is the cleanout: for District customers, a cleanout of four inches or larger decides whether the District maintains the lower lateral or only repairs it once found defective, and the District's section 4101 requires an owner on a public street to install one, at no cost to the District, when work under a building permit adds a plumbing fixture, costs over $50,000, or replaces or repairs the upper lateral. The third is where the main runs: in an easement or a private street the owner keeps the whole lateral to the main. The District says "To confirm an address is serviced by the District, or for questions, call us at (408) 253-7071."

Sources

Cupertino Sanitary District Operations Code, adopted 15 January 2025 by Ordinance No. 134

Also quoted:

Checked

What the rules say

Most relevant if you have a backup or blockage

No rule on file here is specific to a backup or blockage; that does not mean none exists.

Also in force here

  • Before work on the pipePermit
    Who issues it:
    City of Cupertino City Engineer
    What it covers:
    going upon, over or under any public right-of-way, including excavation, whichever body collects the sewage

    Cupertino Municipal Code section 14.08.020 makes it "unlawful for any person to encroach or make or cause to be made any encroachment without first obtaining an encroachment permit from the City Engineer", and section 14.08.010 defines an encroachment to include "going upon, over or under a right-of-way", with excavation or disturbance and the placement or maintenance of any facility among its examples - a pipe is one. The permit is the City's, whichever body collects the sewage, so it reaches any lateral work in the street: an owner connecting the cleanout that Cupertino Sanitary District requires to the lower lateral, or an owner on the City of Sunnyvale's sewer working on the connection under the road.

    What to do: Before digging in the street to reach a lateral, apply to the Cupertino Public Works Department for an encroachment permit and ask whether the street has been resurfaced or resealed in the last three years. Give the City Engineer two full business days' notice before work starts. On Cupertino Sanitary District's sewer, obtain the District's own sewer permit and pay its fees as well - they are separate from the City's. If a pipe has broken, the repair may start first, but give notice within four hours - the City Engineer in business hours, County Communications after hours - and apply for the permit the next business day.

    Why this matters

    Timing is where the permit bites. Section 14.08.040 bars cutting a street for three years after it has been constructed, reconstructed, resurfaced or resealed, except for emergency street cuts, and the City Engineer's exemptions include "Service for buildings or parcels where no other reasonable means of providing service exists". Section 14.08.100 requires the permittee to "notify the City Engineer at least two full business days prior to start of any work, except for work performed in connection with an Emergency". The City Engineer may require security "sufficient to reimburse the City for costs of restoring the right-of-way", fees are set by council resolution, and under section 14.08.130 each permittee is "responsible for restoring to its former condition as nearly as may be possible any portion of the right-of-way which has been excavated". For a broken pipe, section 14.08.200 allows "emergency maintenance to repair a broken or defective pipe, facility or conduit lawfully on or under a public right-of-way", with notice within four hours - by telephone to the City Engineer in business hours, to County Communications otherwise - and a permit application the next business day. The sewer body's own permit is separate: Cupertino Sanitary District requires fees for "all sewer-related construction or repairs done within the District's boundaries", paid before any sewer work begins.

    Current wording dates from · Checked

    Cupertino Municipal Code section 14.08.020, Encroachment Permit Required

    Also quoted:

What this page cannot tell you

  • No assistance or grant programme has been reviewed for this jurisdiction yet.
  • No sewer service territory has been mapped for this area, so BelowGrid cannot say who serves an individual address.

Who governs and serves this area

Jurisdiction
Cupertino (municipality)
Sewer service
No map of sewer providers is held here. BelowGrid cannot say which sewer provider serves an individual address.

How this compares to neighbouring cities

5 of the 7 nearest cities draw the line somewhere else. Each authority publishes only its own rule.

  • Cupertino(this page)
    the cleanout (conditions apply)
  • Saratogaabout 4 mi
    the cleanout (conditions apply; see that page)
  • Santa Claraabout 5 mi
    the main
  • Palo Altoabout 8 mi
    the cleanout (conditions apply; see that page)
  • Los Altos Hillsabout 6 mi
    the main, including the connection fitting on the main (conditions apply; see that page)
  • Mountain Viewabout 6 mi
    the main
  • Milpitasabout 12 mi
    the property line
  • Morgan Hillabout 26 mi
    the main, including the connection fitting on the main

Distances are approximate, in a straight line between the places’ centres.

Compare the rules city by city

Nearby cities and further reading

Look up a specific address

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

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