Pipe Bursting in San Clemente

Spanish Village, the tracts and Talega

San Clemente was laid out in the 1920s as a Spanish-style village on the bluffs above the pier, and the original neighborhoods along Avenida Del Mar, the Pier Bowl and the streets south toward San Clemente State Beach still sit on shallow vitrified clay laterals jointed every couple of feet, with cast iron under raised floors. The city grew slowly until the freeway arrived, then filled in from the late 1950s through the 1970s with slab-on-grade tracts on the terraces and canyons inland from El Camino Real, built with cast iron under the slab and clay or early ABS to the street. The 1980s and 1990s added the hillside neighborhoods above Avenida Pico and around Forster Ranch on ABS and PVC, and Talega, built from the late 1990s through the 2000s on the ridges east of the freeway, is modern PVC under slab, entirely under homeowners associations.

The failures follow the pipe. The old clay opens at the joints and takes roots. Cast iron under the coastal slabs rusts through along the bottom, helped by salt air and sewer gas, so a camera sees a clean crown over a pipe with no floor. Plastic cracks at fittings and bellies where fill settled.

Bluffs, terraces and moving ground

San Clemente is built on marine terraces cut into soft siltstone and sandstone, and the whole town steps downhill to the ocean. The bluffs along the coast and the canyon slopes inland are some of the most active ground in Orange County; slope movement in the older neighborhoods along the bluff top and in the canyons has sheared laterals and pulled them off the house connection, and seasonal creep does the same thing slowly on many ordinary hillside lots. The terrace soils are expansive clay that swells in the winter rains and shrinks all summer, which works every clay joint and every plastic fitting. Shallow groundwater in the canyon bottoms and near the beach infiltrates any open joint. The city's mature street trees, pines, eucalyptus and the ficus and pepper trees of the old core, find every one of those openings.

Sewers and permits

The City of San Clemente operates its own sewer collection system and its own water reclamation plant, and the lateral from the house to the connection at the main is the property owner's responsibility, including the part under the parkway and sidewalk. Lateral repair or replacement needs a plumbing permit from the city, anything in the sidewalk, parkway or street needs an encroachment permit and an inspection before the pit is closed, and work on a bluff or mapped slope can need additional review. In Talega and the other planned neighborhoods the HOA must approve any work that touches the surface it controls. The contractor should pull every permit and say so in the quote.

Which trenchless method fits a San Clemente lateral

• Sewer pipe lining fits the old clay of the Spanish Village when it still holds shape and slope, and it is the standard fix for rusted-through cast iron under a 1960s or 70s slab. A cured-in-place liner from the cleanout seals every joint and crack in one pass without breaking the floor or disturbing the slope.
• Pipe bursting fits a collapsed section, a sheared joint where the ground moved, a deep belly in settled fill, or a line that needs to be upsized. Two small pits and a new fused polyethylene pipe on the old alignment.
• Sectional point repair handles one crushed joint under a driveway, one sheared connection at the foundation, or one root ball on an otherwise sound line.

Crews that handle trenchless sewer repair in San Clemente see bluff-top clay and Talega plastic in the same week, and a good one will tell you from the footage which method fits before quoting one.

What the job looks like

A camera inspection maps the line and marks every defect on the ground with its depth. Hydro jetting clears roots, scale and silt so the pipe wall can be seen and, if the line is being lined, so the resin bonds to clean pipe. Lining runs from the cleanout at the house; bursting needs a small pit at each end of the run. Most residential jobs finish in a day, with water off for a few hours during a liner cure, and you should receive the before-and-after footage. The diagnostic step that decides the method is described in what a sewer camera inspection shows.

To compare installers who have been checked for licensing and CIPP training, you can find a verified CIPP contractor through an independent directory.

Pipe Bursting in San Clemente

How pipe bursting works

A steel cable is threaded through the old sewer line from a pit at one end to a pit at the other. A cone-shaped bursting head, with new high-density polyethylene pipe fused to it, is pulled through by a hydraulic unit. The head splits the old clay or cast iron outward into the soil and the new pipe follows in the same alignment at the same depth. The result is a single fused length of pipe with no joints for roots to find.

When bursting is the right call

• Collapsed sections — a liner needs a host pipe to hold its shape; a collapsed run has none.
• Bellies — a low spot that holds water stays a low spot after lining. Bursting lays new pipe on a fresh bed.
• Undersized lines — bursting can upsize a 3-inch lateral to 4 inches; lining slightly reduces diameter.
• Badly deformed pipe — Orangeburg that has flattened, or cast iron with most of its bottom gone.

What the job looks like

One pit at the house or cleanout, one at the property line or the street connection, each a few feet square. Utilities that cross within a foot or two of the sewer path are located and potholed first. The pull takes an hour or two; the whole job, including fusing, connections, inspection and backfill, is usually one day.

Permits and the street

If the downstream pit is in the sidewalk, parkway or street, a right-of-way permit and restoration to city standards are required in addition to the plumbing permit. If the connection at the main is replaced, the city inspects it before the pit closes. Confirm who is handling this before work starts.

ZIP codes served in San Clemente

Pipe Bursting is available throughout San Clemente, including ZIP codes 92672, 92673, 92674.

More trenchless services in San Clemente

Questions we hear in San Clemente