San Carlos Plumber for Sewer Lateral Videos and Repairs

The work

What Chapter 13.05 puts on a San Carlos plumber's list

The video a building permit calls for
The Building Division's handout lists the permit triggers: new sewer connections, remodels above a cost threshold set in 2010 dollars and adjusted yearly, work on more than 25 percent of the building, added toilets, and certain changes of use. The video opens on the outside of the house, shows where the camera goes in, runs with footage and narration from the building cleanout to the main, and pauses on cracked or offset joints and roots. It is uploaded online or brought on DVD with an inspection report and aerial sketch.
Replacing Orangeburg and other short-lived pipe
Chapter 13.05 spells out a passing lateral: free of roots, grease and solids, no roof leaders or yard drains tied in, tight joints, no breaks or major sags, cleanouts to the city's standard detail, and materials with at least 25 years of design life left. Orangeburg, the bituminized fiber pipe pressed from wood pulp and pitch, is declared at the end of its life outright, so finding it on camera points to replacement rather than a spot repair.
Relief valve on the cleanout, backwater valve when floors are low
Every San Carlos lateral needs a sewer relief valve on its cleanout, installed by the owner. A backwater valve on the upper lateral is required as well wherever any floor of the building sits below the invert of the sewer main, wherever a blocked main could back sewage up above the lowest floor, and wherever a pump lifts sewage to the lateral or main. Both appear on the checklist a lateral has to clear.
Pumped laterals in the hills
Next to its six city lift stations, San Carlos has many privately owned ones, and the code is plain that maintaining a private pressure lateral to a city main always stays with the property owner. A house that pumps its sewage also falls under the backwater valve rule, so a pump or force-main repair is a natural moment to confirm that valve is in place and working.
Notices to repair after smoke tests and overflows
The chapter reaches houses with no remodel underway too. When smoke testing of a main shows inflow from private property, when the city replaces the main a lateral connects to, or after an overflow caused by a blocked lower lateral, the owner can be required to inspect and then repair. Repairs are due within 90 calendar days of the notice and root removal within 120, and work left undone can be done by the city, with the cost recovered as a lien or on the county tax bill.

The historic San Carlos train station. Photo: CityofSanCarlos, CC BY-SA 4.0, via Wikimedia Commons.

The houses here

Bungalow flats on clay mains, hills that pump

The city's own account of its sewer system dates the oldest pipes to the 1920s, puts a large share in the 1940s and 1950s, and has newer hill areas developed after that. The houses line up with that: White Oaks, Oak Park blocks included, is mostly bungalows put up between the 1920s and 1950, many expanded since, while higher up the city runs lift stations named Upper Crestview, Lower Crestview and Tierra Linda among its six, beside many private ones. Camera work on the public mains, finished in January 2013, found virtually every segment flagged for renewal carrying grade 4 or 5 defects.

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Permits and local rules

The code sections and permits behind a San Carlos lateral job

Chapter 13.05: when a lateral must be inspected
San Carlos wrote these lateral rules into its code in 2010, the year San Francisco Baykeeper sued the city over sewer overflows, and amended them in 2015. A lateral must be inspected on a new sewer connection, a building permit for an improvement, a main replacement, smoke testing, or an overflow from a blocked lower lateral, unless a valid certificate of lateral compliance is on file. Inspection is by closed-circuit television or three-dimensional photography under a city permit, so it can be witnessed, and the video stays valid for six months.
City of San Carlos Public Works (opens in a new tab)
Cleanouts and the lower lateral
The owner is responsible for the lateral, but once an approved property-line cleanout is installed, the city assumes maintenance and repair of the lower section inside the public right-of-way. A remodel that triggers the video must at a minimum add a city cleanout to the city's standard if the house has none, and a lateral that is replaced and abandoned is sealed and capped at the property line to the Public Works inspector's satisfaction.
City of San Carlos Public Works (opens in a new tab)
Encroachment permits for the street side
Work in the public right-of-way or a public utility easement takes a Public Works encroachment permit, applied for by email or at the counter in City Hall. The application has to show the contractor's San Carlos business license, a certificate of insurance that names the city, a valuation of the work and, where needed, a traffic control plan. The city's sanitary sewer video requirements sit in the same permit packet.
City of San Carlos Public Works (opens in a new tab)

State license for this work: C-36 Plumbing, C-42 Sanitation System. Look up a contractor's license on the CSLB website (opens in a new tab).

Timing

Clocks that run on a San Carlos lateral

A lateral video is valid for six months, so shooting it early in a long design process can mean shooting it again before the permit goes in. Occupancy for the remodel waits on the lateral passing. After a notice to repair, the owner has 90 calendar days for repairs and 120 for root removal. The encroachment permit page also bars grading and hauling from October through April unless the City Engineer approves an exception, which is worth checking before booking street-side work.

Before you hire

Put these to a plumber before a San Carlos permit goes in

Will the video start at the building cleanout, show the outside of the house, and narrate and pause at every defect, as the city requires?
If the remodel adds a toilet, is the lateral video planned into the permit application rather than discovered afterward?
Does the quote include the sewer relief valve on the cleanout and, for a low floor or a pumped lateral, a backwater valve?
Does the contractor hold a San Carlos business license, which the encroachment application has to show?
Is the C-36 Plumbing license current when you look it up at cslb.ca.gov?

Questions

San Carlos lateral rules, asked plainly

We're adding a half bath to our White Oaks house. Does that trigger the sewer video?

Yes. A building permit for a project that adds toilets is one of the listed triggers under Chapter 13.05, along with work on more than a quarter of the building and remodels over the city's yearly adjusted cost threshold. The video and the city's inspection report go in with the permit application, and a lateral that fails may have to be replaced at the owner's cost.

Our camera inspection shows Orangeburg pipe. Can it just be patched?

Not under San Carlos rules. The code treats Orangeburg, a fiber pipe of wood pulp and pitch, as already at the end of its design life, and a compliant lateral needs at least 25 years left. Expect a replacement with a cleanout to the city detail and a relief valve, under building and, on the street side, encroachment permits.

Our house is in unincorporated Devonshire, surrounded by San Carlos. Do the city's lateral rules apply?

Not necessarily. LAFCo's 2011 review describes unincorporated Devonshire as an area wholly surrounded by the city, where part is served by the county-run Devonshire County Sanitation District and other developed homes rely on septic systems. The city chapter covers property inside San Carlos or connected to its sewers by an outside service agreement, so confirm which agency serves the lot first.

Who looks after the part of our lateral under the street?

The lateral is the owner's responsibility, but once an approved property-line cleanout is installed, the city takes on maintenance and repair of the lower section in the public right-of-way. A remodel that triggers the video has to add a city cleanout if the house has none, which also puts that lower section on the city's side.

Where does San Carlos tap water come from?

Cal Water's San Carlos system, which has served the area since 1931, bought all of its 2025 supply from the San Francisco Public Utilities Commission and moves it through 112 miles of main, 19 storage tanks and 27 booster pumps. In January 2026 it announced 300 feet of new main just west of Eaton Park, between Crestview Drive and Brittan Avenue, to strengthen flow in an area of varied elevations, with the work expected to finish by the end of February.

Keep exploring

More on plumbing work and San Carlos

Other trades in San Carlos

Guides and smaller jobs

Where this page belongs

Where these facts come from

Checked against these public sources in October 2026. Rules and programs change: confirm permit requirements with the city before work starts, and a contractor's license on the CSLB website.

Adding a bathroom in San Carlos starts with a camera in the lateral

What Chapter 13.05 puts on a San Carlos plumber's list

The video a building permit calls for

Replacing Orangeburg and other short-lived pipe

Relief valve on the cleanout, backwater valve when floors are low

Pumped laterals in the hills

Notices to repair after smoke tests and overflows