A backflow notice from the City of Woodland doesn’t mean the same thing for every property. It could be a routine annual test, an initial inspection for a new water service, a repair requirement, or a cross connection that needs correction before it creates a drinking water risk. Reading the notice carefully is the most useful first step. Deadlines and requirements vary depending on what’s actually being asked.
We’ve served Woodland, Davis, and surrounding areas since 1995, and we know that backflow compliance questions often come with urgency attached. Here’s what you need to know about how the city’s rules work and what to do when a notice arrives.
What Backflow Testing Is Actually Protecting Against
Backflow is the unwanted reversal of water flow. It is the condition that can pull or push water from a property’s plumbing back into the public potable water system. Back siphonage is one common cause, typically triggered by a drop in water pressure during a main break or a high-demand event.
A cross connection is any physical link between potable water and a potential contamination source. Irrigation systems, fire suppression systems, commercial plumbing, and chemical equipment can all create cross connection concerns, though a hazard assessment determines what level of protection a particular property actually needs.
A backflow prevention assembly is the mechanical device installed to stop reverse flow. Depending on the hazard and the city’s direction, that might mean a reduced pressure principle assembly, a double check valve assembly, or an air gap. An air gap is a physical open space between a water outlet and a receiving vessel.
How Often Woodland Requires Testing
Under city rules, properties with installed backflow devices need an inspection at least once per calendar year. The Public Works Director can require more frequent certified inspections when the identified hazard warrants it.
The City of Woodland Water Department’s Cross Connection Control Testers hold primary responsibility for annual inspections, though city rules also allow an approved third-party tester in certain situations. Follow the instructions in your notice rather than assuming the process will match what happened the year before.
What New Water Services Require
A new water service requiring a backflow prevention assembly or air gap has its own inspection sequence. The device needs an initial inspection after installation, then a final inspection within 48 hours of the service receiving water.
That 48-hour window is easy to underestimate. If the final inspection isn’t completed on time, the city may shut off water service. Installation timing, device access, and inspection scheduling all need to be worked out before the project reaches the final connection stage, not after.
Who Can Perform a Compliance Test
Testing must be completed through the City of Woodland Water Department or by a third-party tester approved under the city’s program. A plumber who can install or repair a device isn’t automatically authorized to submit a compliance test.
The city requires testers to hold certification from an organization recognized by the California State Water Resources Control Board. Woodland uses a backflow prevention assembly test report based on USC Manual of Cross Connection Control procedures. Keep the completed report. It documents the device condition and satisfies the local reporting requirement.
What Happens When a Device Fails or Is Missing
A failed device needs correction before it can provide reliable protection. Depending on its condition, that may mean repair, overhaul, or replacement at the property owner’s expense, followed by retesting.
The city may deny or discontinue water service when a required device isn’t installed, tested, or maintained, and the same applies when a device has been removed, altered, or bypassed. For a written notice requiring installation or correction of a hazardous condition, Woodland generally gives property owners 90 calendar days to comply. Water service termination becomes possible if compliance isn’t achieved within 120 calendar days.
A Practical Backflow Compliance Checklist
Before arranging any work, identify exactly what the city is requesting. A notice for annual testing calls for a different response than one involving a failed assembly, a new water service inspection, or an unprotected cross connection.
Keep these records:
- City Notice: Save the original notice, including the property address, device information, due date, and any stated correction requirement.
- Test Report: Retain the completed backflow prevention assembly test report and confirmation that it was submitted through the required local process.
- Repair Documentation: Keep invoices and descriptions for any repairs, overhauls, or replacement assemblies.
- City Communications: Record inspection scheduling details and any correspondence with the City of Woodland or your water service provider.
If a device needs plumbing work before it can pass testing, address the repair first. The test report isn’t the only task. Backflow prevention is tied to the actual assembly, its installation, and the cross connection risk it’s meant to control.
Act on the Specific Notice Issued for Your Property
Annual testing is common, but a new water service, an increased hazard, a failed device, or a changed plumbing condition can bring a different set of deadlines and responsibilities. The safest approach is to act on exactly what the notice says, not what you remember from last year.
For help with backflow plumbing concerns or broader plumbing support in Woodland, Davis, and surrounding areas, contact Hall's Plumbing at (530) 443-5818.