Plumbing Richmond

Plumbing in Richmond, CA, where your sewer district sets the lateral test

In Richmond, the agency whose main your sewer joins decides what a plumber has to prove about the lateral. The city's own sewer district maintains about half of the lines, West County Wastewater much of the northern half, and Stege Sanitary District the southern Richmond Annex, where EBMUD's regional ordinance applies. All three put the whole lateral on the owner, and a house with gas sold since July 1, 2024 also needs a gas shutoff device.

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  • Rules on this page checked against 20 public sources, October 2026
Sewer agency
City sewer district, West County Wastewater or Stege, by address
City lateral certificate
COLC, good for up to 15 years under RMC Chapter 12.17
Gas shutoff at sale
Seismic or excess-flow device on houses sold since July 1, 2024
Tap water
EBMUD's Sobrante plant, treating San Pablo Reservoir water

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Free to request, and you agree the scope and price with the person you hire before work starts. In California, a job over $1,000 in labor and materials, or one that needs a building permit, must be done by a contractor licensed by the CSLB in the right class. Ask for the license number and check it at cslb.ca.gov.

Richmond from the air, seen from above the west end of the Richmond-San Rafael Bridge
Richmond from the air, seen from above the west end of the Richmond-San Rafael Bridge. Photo: Dicklyon, CC BY-SA 4.0, via Wikimedia Commons.
Copper pipe fittings: elbows, a tee, reducers and couplings
Copper pipe fittings: elbows, a tee, reducers and couplings. Photo: Torsten Bätge, CC BY-SA 3.0, via Wikimedia Commons.

The houses here

Laterals in Bay Mud, with the tide coming in

Most of Richmond was built on the flat bay plain, and the General Plan warns that sand trapped between clay layers there can be under artesian pressure that breaks through when a trench is opened. The city's lateral page adds a hazard few inland plumbers think about: rain, high tides and groundwater all find their way into a lateral through its cracks and gaps. City code sets what a sound lateral looks like in its district: a two-way cleanout at or near the building, a backflow or overflow device, no downspouts or yard drains tied in, and a pump wherever fixtures sit too low to drain to the main by gravity.

The work

Plumbing calls that run into Richmond's codes

  1. A camera run for the city's certificate

    In the city's sewer district a lateral earns a Certificate of Lateral Compliance, or COLC. A plumber runs a camera through the line from the foundation to the city main, and city staff review the video and decide whether it passes. If it fails, the lateral is repaired or replaced under permit before the certificate is issued. A COLC covers only the address on it and lasts no more than fifteen years, so a lateral replaced long ago may need to qualify again.

  2. A second bathroom that reaches the street

    Richmond's lateral ordinance ties remodeling to the sewer. When a remodel in the city district adds two or more plumbing fixtures that drain to the sanitary sewer, the lateral has to be tested, and any repair or replacement it needs must be finished before the final building inspection. An added bathroom, or a kitchen and laundry in a new unit, is exactly that case, so price the lateral along with the fixtures.

  3. Gas shutoff devices before a sale

    Under Chapter 6.48 of the Municipal Code, any Richmond building with fuel gas piping that is sold on or after July 1, 2024 needs an approved gas shutoff device on the owner's side of the meter, installed before the sale agreement or before escrow closes. The city accepts either a motion-sensitive seismic valve or an excess-flow device. When a single condominium is sold, the device goes on the piping serving that unit.

  4. Replacing pipe hidden in a wall

    Richmond's handout on work exempt from permits draws the line for old houses: when a concealed drain, trap or water pipe fails and has to be removed and replaced, the job counts as new work and needs a permit. Plumbing repairs and change-outs are among the permits the Building Division can issue over the counter, and applications now go through the city's iMS portal.

Permits and local rules

Which sewer agency's certificate applies to your lot

  1. City of Richmond Private Sewer Lateral program

    Inside the Richmond Municipal Sewer District, the city holds the owner responsible for both the upper and lower sections of the lateral, from the foundation to the street, alley or easement, and code adds the connection to the main. A certificate is tied to a sale: the buyer and seller agree who takes it on, a licensed plumber's camera video is reviewed by staff, and the city's page says the lateral must comply within 60 days after close of escrow.

    City of Richmond Water Resource Recovery (opens in a new tab)

  2. West County Wastewater: certificate, permit, video

    Owners selling or transferring a home in West County Wastewater's area must obtain a Certificate of Compliance first. Every lateral connection, installation, repair or replacement needs a WCW permit before work begins, testing has to be done with video inspection, and WCW wants 24 hours' notice before a test. Whenever a lateral is repaired or replaced, a backwater overflow device must go in, kept clear of soil and planting.

    West County Wastewater District (opens in a new tab)

  3. Stege Sanitary District and EBMUD in the Annex

    Since October 18, 2011, EBMUD's regional lateral ordinance has governed in Stege's service area, which takes in the southern Richmond Annex. Its triggers are a sale, a remodel above the ordinance threshold and a change in water meter size, and EBMUD witnesses the test and issues the certificate. Stege still issues the sewer permit for any work outside the foundation and holds the owner responsible up to and including the connection at the main.

    Stege Sanitary District (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).

Part by part

How the sewer map splits Richmond

  • Richmond Annex

    Stege reviews and stamps plans before the city sees them, and oversees everything outside the foundation, while plumbing inside the house is permitted by the City of Richmond. Work in the street may need a Richmond encroachment permit as well. Stege also offers a no-interest deferred loan for laterals that have not yet triggered the regional program.

  • Northern subdivisions

    The city says residents roughly north of Rheem are served by West County Wastewater, which also covers San Pablo, Tara Hills and East Richmond Heights. Its PIPES program rebates part of a lateral replacement, but only with approval before any work starts.

  • Central and southern Richmond

    This is the city's own sewer district, whose wastewater goes to the Water Pollution Control Plant run by Veolia. Its Sewer Lateral Grant reimburses owners after a full replacement, never a partial one, and the current round covers work finished between July 1, 2026 and June 30, 2027.

Before you hire

Questions for a plumber before Richmond sewer or gas work

  • Ask which agency's main your lateral joins, since the city, West County Wastewater and Stege each run their own permit and certificate.
  • In the city district, ask for camera video that runs from the foundation all the way to the city main.
  • Selling a house with gas? Ask whether the quote includes the seismic or excess-flow shutoff device Richmond requires before the sale.
  • In West County Wastewater's area, ask whether the backwater overflow device and the PIPES pre-approval are part of the plan.
  • Look up the C-36 Plumbing license at cslb.ca.gov and confirm the company will pull the permit through Richmond's iMS portal.

Questions

Sewer, gas and water questions from Richmond owners

Does EBMUD's sewer lateral ordinance cover my house in Richmond?

Only if your lateral drains to Stege Sanitary District, which serves the southern part of the Richmond Annex. EBMUD's program covers most of the agencies that send it their wastewater, Stege among them, though not Berkeley. The city's own sewer district and West County Wastewater treat theirs at their own plants and run their own lateral rules, so most Richmond houses answer to one of those two instead.

Who gets the lateral certificate when a Richmond house in the city district sells?

Richmond's ordinance leaves it to the parties: either the seller or the buyer, as they negotiate, obtains the Certificate of Lateral Compliance. The city's lateral page says the two need to agree who takes responsibility, and that a licensed plumber must camera the lateral so staff can review the video.

Do I need a gas shutoff valve to sell my house in Richmond?

If the house has gas piping, yes. Since July 1, 2024, Chapter 6.48 of the Municipal Code has required an approved seismic or excess-flow shutoff device downstream of the meter before the sale agreement or the close of escrow. A device installed by the gas utility on its side of the meter, done to the chapter's standards, can take its place.

Is there help paying for a new sewer lateral in Richmond?

Each agency has its own. The city's Sewer Lateral Grant reimburses a full replacement in its district once per owner, and the application needs the paid invoice and the certificate. West County Wastewater's PIPES program rebates part of a replacement with approval first, and Stege offers a no-interest deferred loan in the Annex.

Where does Richmond's tap water come from?

EBMUD's Sobrante Water Treatment Plant in El Sobrante, built in 1964, is the primary plant for Richmond, El Sobrante, Pinole, Hercules, Crockett, Rodeo and San Pablo. It mainly treats water stored in San Pablo Reservoir. Leak or meter questions on the street side go to EBMUD; the pipe from the meter to the house is a plumber's job.

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.

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