Cross-connection inspections look for places where the drinking water system touches equipment or lines that could contaminate it. We note each connection, whether it's protected, and what kind of device it needs if it isn't.
- PriceFree quote
- ReportWritten list
- Best forCommercial sites
- Follow-upInstall if needed
Pricing
| Backflow size | Flat fee per backflow |
|---|---|
| Under 4" | $105 |
| 4" and larger | $175 |
Includes the test and filing with your water district. No hidden fees.
Want to get on the schedule? Call or book online.
Common places we check
- Sprinkler systems with chemical feed
- Restaurant equipment
- Mechanical rooms and HVAC equipment
- Lab, medical and dental lines
- Wash bays and hose bibbs
Understanding cross-connections
Any place drinking water could mix with something harmful is a cross-connection. Examples include a hose left in a chemical tank, sprinklers with fertilizer injection, boiler water with treatment additives, and medical or dental equipment lines.
Water is supposed to flow in one direction, from the main to you. A sudden drop in street pressure, from a main break or heavy hydrant use, can pull water backward. That's backsiphonage. A pump, boiler or elevated tank on your side can push water backward. That's backpressure.
Both can carry contaminants into the public supply. A properly chosen device at each cross-connection keeps that from happening.
How the inspection works
We start at the meter and follow the water through the property. Along the way we check irrigation, mechanical and boiler rooms, kitchens, labs, wash bays, hose connections and any equipment tied to the water lines.
Each connection gets noted: what it serves, how risky it is and whether it's protected. Existing devices are checked to see if they match the hazard. Unprotected connections get a recommendation.
You get a written summary afterward. Since water districts set their own rules for formal surveys, and some require a cross-connection control specialist, let us know what your district asked for and we'll make sure the work matches.
Who usually needs one
Water districts typically ask for cross-connection inspections at commercial, industrial, medical and multi-unit properties. In Fontana, that includes restaurants, medical and dental offices, car washes, manufacturing sites, schools, hotels and apartment complexes.
A change of use often triggers a survey too. If a retail space becomes a restaurant, or an office becomes a clinic, the hazard level changes and the district may want the property reviewed.
Some owners ask for one on their own, to understand what's on site before an audit, a purchase or a remodel. If your district has sent a letter, the letter usually explains what they need and by when. Send us a copy and we'll take it from there.
Matching protection to what we find
Protection depends on the hazard. An air gap, an open space between the outlet and what it fills, is the strongest option. For high hazards where an air gap won't work, an RP assembly is the standard.
Lower hazards may be fine with a double check. Connections only at risk of backsiphonage, such as many irrigation systems, can sometimes use a PVB or SVB if the layout fits.
The district decides what's acceptable for each situation. After the inspection, we can quote the needed devices, install them, test them and file the first reports, all in one plan.
Common hazards by business type
Each kind of business has its own usual suspects. Restaurants often have soda systems, dish machines and hose connections with chemical dispensers. Medical and dental offices have equipment lines and sterilizers. Car washes have chemical injection. Manufacturing sites can have process water, cooling systems and tanks.
Knowing the usual hazards helps the inspection go quickly, but we still check every connection, since unusual setups are common.
Testing new devices after the survey
If the inspection leads to new backflow devices, each one needs a startup test once it's installed. Those reports tell your district the connections are now protected.
From then on, every new device joins your yearly testing schedule. If you'd like, we'll track the due dates for all of them so nothing slips.
Pricing a cross-connection inspection
Pricing depends on the size of the property and how many water connections it has. A small storefront is a quick walk-through, while a multi-building campus takes much longer.
Call with the address, the type of business and any letter from your district. We'll give you a free quote before scheduling.
If something isn't protected
We'll show you what needs protection and quote the installation.
Questions
Who needs a cross-connection inspection?
Usually commercial, industrial, medical and multi-unit properties, or any site your water district asks to be surveyed.
How long does a cross-connection inspection take?
A small commercial space may take an hour. Larger sites with several buildings take longer, and we'll estimate when you call.
Does my district require this?
Some do for commercial and multi-unit sites, especially after a change of use. Check your letter or ask us.
Do homes ever need one?
Rarely, but it can come up with wells, pools or home businesses. Call if your district asked.
Is this the same as a backflow test?
No. A test checks a device that's already installed. A cross-connection inspection checks whether you have the devices you need.
What happens with what you find?
You get a list of each connection and what it needs. You decide what to fix and when.
Working with a local backflow company
When you call us about cross-connection inspection, you're talking to a company that focuses on backflow prevention. That focus means we know the devices, the test procedures and what your water district expects to see on the report.
Here's what you can count on: certified testers, calibrated gauges, a price before any work, and filing with your district included. Testing is $105 flat per device under 4 inches and $175 for 4 inches and up. We pick up seven days a week from 6am to 12pm, book most visits within the week and take emergency calls 24/7. Every customer gets a copy of the report for their records.
Cross-Connection Inspection near Fontana
We offer cross-Connection Inspection throughout Fontana and nearby cities, including Rialto, Rancho Cucamonga, Colton, San Bernardino and Ontario. Most appointments are available within the week, and you can call or book online.