Anne Arundel County Backflow Valve Preventer Testing | (301)-270-6663

Attention: Anne Arundel Residents and Businesses That Have Received A Backflow Inspection Notice

Durance Plumbing provides licensed and certified backflow testing services in Anne Arundel County,  limited specifically to Laurel, Hanover, and Jessup. We focus on regulatory compliance, testing, repairs,  and documentation for properties subject to County backflow requirements.

Licensed & Certified for Anne Arundel County Backflow Testing 

Backflow testing in Anne Arundel County must be performed by properly licensed and certified  professionals. Durance Plumbing operates under the following credentials: 

  • Maryland Master Plumber License #77820 
  • Anne Arundel County Master Plumber License #A2-2464 
  • Pipeline Institute Certified Backflow Prevention Technician #23-0210 

These licenses authorize us to legally test, repair, and certify backflow prevention assemblies within  Anne Arundel County jurisdictions we serve. 

We have certified testers along with licensed plumbers that are ready to handle your testing repairs and maintenance.  Any and all paperwork if needed for permits and inspections can be handled by our company.

Anne Arundel County Backflow Requirements 

Anne Arundel County enforces backflow testing as part of its cross-connection control efforts to protect  public health and the drinking water system. Backflow prevention is required on plumbing systems that  present a contamination risk, including: 

  • Commercial and industrial facilities 
  • Medical, dental, and healthcare offices 
  • Restaurants and food service establishments 
  • Irrigation and lawn sprinkler systems 
  • Fire protection systems 
  • Multi-family and mixed-use properties 

Testing must be completed using calibrated equipment and documented in accordance with Anne  Arundel County requirements. 

Why Anne Arundel County Requires Backflow Testing

Backflow conditions can occur when system pressure drops or reverses due to: • Water main breaks 

  • Fire flow or hydrant use 
  • Sudden demand changes 
  • Plumbing system modifications 

Without a functioning backflow preventer, contaminants can be drawn into the public water supply. To  prevent this, Anne Arundel County requires: 

  • Initial testing after installation 
  • Periodic testing (typically annual) 
  • Testing after repair, relocation, or replacement 

Our experience with County inspectors and procedures helps minimize delays and rejected reports.

Backflow Repairs, Rebuilds & Replacement 

If a backflow prevention assembly fails testing, corrective action is required before compliance can be  restored. Depending on the condition of the device, this may involve: 

  • Cleaning and rebuilding internal components 
  • Replacement of test cocks or shutoff valves 
  • Full replacement when repairs are no longer reliable 

We service common backflow assemblies, including RPZ (Reduced Pressure Zone) and Double Check  Valve Assemblies. 

Areas We Serve in Anne Arundel County 

NOTE: Durance Plumbing provides Anne Arundel County backflow testing only in the following areas:  Laurel,  Hanover and Jessup 

If your property is located outside these areas, we may not be able to provide service.

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Reasons to Choose Durance Plumbing for Anne Arundel County Backflow Testing

 

  • Licensed Anne Arundel County Master Plumber 
  • Licensed Maryland Master Plumber 
  • Pipeline Institute Certified Backflow Prevention Technician 
  • Experience with County cross-connection compliance requirements 
  • Commercial and regulated-property expertise 
  • One contractor for testing, repair, replacement, and compliance support 

Backflow testing is regulated work. Proper licensing and local experience matter. 

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Our Anne Arundel County Backflow Testing Process 

Durance Plumbing follows a compliance-focused process designed to meet Anne Arundel County  requirements: 

  1. Confirm service eligibility (Laurel, Hanover, or Jessup) 
  2. On-site evaluation of the backflow assembly and access conditions 
  3. Certified backflow testing using calibrated equipment 
  4. Immediate pass/fail results provided on site 
  5. Repair or replacement guidance if the device fails 
  6. Proper documentation completed for County compliance 

Frequently Asked Questions About Anne Arundel County Backflow Testing

Anne Arundel County backflow test due — what do I do?

If you received a backflow test due notice from Anne Arundel County, you must schedule certified  testing before the listed deadline and submit proper documentation.

Who can perform backflow testing in Anne Arundel County?

Backflow testing must be performed by a properly licensed and certified backflow technician. Not all  plumbers are authorized to perform this work. 

How often is backflow testing required in Anne Arundel County?

Most regulated backflow assemblies require annual testing. Additional testing may be required after  installation, repair, or relocation. 

What happens if my backflow preventer fails the test?

Failed devices must be repaired or replaced and then retested until a passing result is achieved.

Do you service all of Anne Arundel County?

No. We currently provide Anne Arundel County backflow testing services only in Laurel, Hanover, and  Jessup.

How long does a backflow test take?

Most standard backflow tests take 30–60 minutes, depending on device size, condition, and site access.

Do you service failed or older backflow assemblies?

Yes. We regularly repair and rebuild older assemblies when feasible and advise replacement when repairs are no longer reliable or cost‑effective.

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