West Coyote Hills Area: Gas Lines in Northwest Fullerton

The area

West Coyote Hills is the hilly, largely open area in northwest Fullerton, ringed by residential streets. Homes around it range in age and style, from earlier tracts on the flatter edges to later houses climbing the slopes. Many have pools, terraced yards and outdoor living areas.

Because the housing varies, the best first step is to know your own home: its age, its foundation, where the meter is and where the gas piping runs.

At a glance

Housing: Mixed ages around the hills
Terrain: Flat edges, sloped streets higher up
Gas utility: SoCalGas
Water and sewer mains: City of Fullerton
Permits: City of Fullerton building division

Matching gas concerns to your house

If your home is	Likely gas piping	Common issues
An older single-story tract	Black iron through the attic	Aging connectors, leftover outlets
A later two-story	Black iron or CSST, sometimes both	Sizing for added appliances
On a sloped or terraced lot	Longer runs, possibly under raised floors	Pressure drop over distance, crawl-space rust
One with pool and outdoor kitchen	Buried yard lines	Unrecorded routes, dig-ins, line sizing

Yards, roots and buried lines

Pools, spas, fire pits and built-in barbecues are common in these neighborhoods, which means more buried gas pipe than in a small-lot tract. Those lines are private, after the meter, and are not marked by 811. Over the years, landscaping projects, new trees and slope work can disturb them.

Roots from mature trees are also a common reason for sewer lateral problems in older clay or cast-iron pipe. If you are digging for any reason, plan for both: call 811 for utility lines and find your own private gas and irrigation lines before the shovel goes in.

Short list for homeowners here

Sketch every buried gas line in the yard
Add a shutoff where the yard line leaves the house, if there is none
Have the line sized before adding a pool heater or outdoor kitchen
If you have a crawl space, ask about the piping under the house
Keep the meter area clear and accessible

Who to contact

IfGas smell indoors or outdoorsThenLeave, then call 911 or SoCalGas from outside.
IfMeter or street-side lineThenSoCalGas.
IfYard or house pipingThenA licensed contractor; check at cslb.ca.gov.
IfPermits and grading questionsThenCity of Fullerton.

Map of West Coyote Hills. It shows an area, not an office or a job site.

Common questions

Does 811 mark my pool heater gas line?

Generally no. 811 covers utility-owned lines. Private lines after the meter must be located separately.

Are homes here on slab or raised foundations?

Both exist. Check your own house.

Who provides water here?

The City of Fullerton operates the city's water utility. Confirm for your address with the city.

General information for Fullerton, not a quote or professional advice. In an emergency, call 911.