Annual Fire Hydrant Testing in Riverside County, California

1. California
2. Riverside County
3. Annual Fire Hydrant Testing

NFPA 25 annual flow test and inspection · NFPA 291 flow method and bonnet colors · Hedrick Fire Protection, C-16 and C-10

Hydrants in your truck court are your job

A UC Riverside analysis ranks transportation, distribution and logistics as Riverside County's second-largest employing industry, at about 9.7% of jobs. Running one of those buildings? If hydrants stand in your truck court or around your parking lot and a private fire main feeds them, the water agency and the city usually leave their upkeep to you. Business parks and campuses too. NFPA 25 asks for a flow test and an inspection every year. NFPA 24 covers the underground main and fittings that feed those hydrants.

Street hydrants are different. Those usually belong to the water agency or the city. Not sure which kind you have? Ask on the first call and we'll help you trace where your private main starts.

What happens on test day

Here's how a visit runs.

1. Look it over. The technician checks caps, threads, outlets and the operating nut, and looks for leaks, damage or anything blocking access.
2. Read static pressure. A gauge goes on one hydrant to read pressure with no water moving.
3. Flow water. A second hydrant opens fully while the technician reads pitot pressure at its outlet and the first gauge shows residual pressure, which is the method NFPA 291 lays out for finding how much water the main can deliver.
4. Operate and drain. The valve opens and closes slowly through its full travel. On a dry-barrel hydrant, the barrel should drain once it's shut.
5. Mark the result. NFPA 291 also sets the bonnet color code by flow class, so firefighters can read the hydrant's capacity from the street.

Where does the water go? A flow test puts a lot of it on the ground, so we pick a discharge spot on pavement with you before any valve opens.

Your water likely comes from Eastern Municipal Water District, which covers 555 square miles of western Riverside County, from Coachella Valley Water District in the desert, or from a western-county district such as Western Municipal, Elsinore Valley, Jurupa Community Services District, Lake Hemet, Rancho California or Temescal Valley. Each can set its own notice rules for flowing a main. Check with yours before the date.

Sometimes a valve sticks or a barrel won't drain. Repair often beats replacement. See how a Carlsbad hydrant repair compared with a $10,000 replacement quote.

Who reads the results at your address

Start with who protects your address. The Riverside County Fire Department, working with CAL FIRE, provides fire and emergency services to unincorporated areas and 20 partners: 19 cities and the Rubidoux Community Services District. Its Office of the County Fire Marshal does plan review and construction inspection for unincorporated areas and contract cities, plus fire and life-safety inspections of state-regulated occupancies.

• Partner cities with their own fire marshal: Banning, Beaumont, Indio, Lake Elsinore, Menifee, Moreno Valley, Temecula and Wildomar. Coachella contracts with County Fire for suppression, but its City Fire Marshal Office does prevention, plan review and inspections.
• Cities with their own fire protection: Blythe, Calimesa, Canyon Lake, Cathedral City, Corona, Hemet, Murrieta, Palm Springs and Riverside. The Idyllwild Fire Protection District is a separate fire agency as well.

Which one wants your hydrant record? Ask the fire marshal for your address before the test so you know where the report needs to go. For local detail, see annual hydrant testing in Corona, hydrant flow testing in Temecula and hydrant testing in Moreno Valley, or go back to our Riverside County fire protection hub.

Code edition and hazard zones

Ordinance 787.10 brought the 2022 California Fire Code, with local amendments, to unincorporated Riverside County. Cities adopt their own. In October 2025, a Board of Supervisors submittal proposed Ordinance 787.11, which would adopt the 2025 California Fire Code and the California Wildland-Urban Interface Code with an intended start date of January 1, 2026. Confirm the edition in force with your fire marshal.

Up in the San Jacinto Mountains, much of the land, including the Idyllwild area, sits in High or Very High fire hazard severity zones. Those zones bring Wildland-Urban Interface building rules, and Very High zones add 100 feet of defensible space. Bad place for a stuck hydrant.

Book the annual test

Call (213) 568-0188 or email socal@1profire.com with your address and hydrant count. We'll set a date. California work is done by Hedrick Fire Protection, which holds C-16 fire protection and C-10 electrical contractor licenses.

If the same private main feeds your sprinklers, our Riverside County fire sprinkler service page covers that NFPA 25 work, and we also handle fire alarm testing in Riverside County and hydrostatic testing. Questions first? Reach us at (213) 568-0188 or socal@1profire.com.

Questions from Riverside County property owners

How often does a private fire hydrant need testing?

Every year. NFPA 25 calls for an annual flow test and inspection of private hydrants.

Does Riverside County Fire inspect my hydrants?

It depends on your address. The Office of the County Fire Marshal covers unincorporated areas and contract cities, but Banning, Beaumont, Coachella, Indio, Lake Elsinore, Menifee, Moreno Valley, Temecula and Wildomar have their own fire marshal offices. Corona, Riverside and the other cities that provide their own fire protection, plus the Idyllwild Fire Protection District, are separate agencies, so ask them who reviews hydrant records.

Who owns the hydrant in front of my building?

If a private fire main on your property feeds it, you do. Hydrants on public mains usually belong to the water agency or the city.

What do the bonnet colors mean?

They show the hydrant's flow class. NFPA 291 sets the color code, and the annual flow test tells you which class your hydrant falls in.