Backflow Prevention Device Certification in Denver, Colorado (2026)
Without a current Backflow Prevention Device Certification, Denver Water will not permit you to operate — and your water service can be disconnected without notice. Backflow Prevention Device Certification (also called backflow device testing and certification) is required annually by Denver Water to ensure your restaurant's water system cannot contaminate the municipal supply. The Denver Water Department issues this certification after a certified inspector tests your device and submits a compliance report. Key facts:
- 21 fields — ApronPrep auto-fills 17
- $303–$2444 government filing fees (contact Denver Water at 303-893-2444 for current testing and certification charges)
- Varies processing time — typically 2–4 weeks after test report submission
Analyzed from Backflow Prevention Device Certification
81% from one compliance interview
Manual entry or document upload required
Why You Need a Backflow Prevention Device Certification
Your restaurant's plumbing is a public health issue. In Denver, the Backflow Prevention Device Certification is a legal requirement under the city's Water Board Rules and Regulations, specifically the Denver Revised Municipal Code (DRMC) § 49-1 et seq. and the Denver Water Department's Regulations for the Protection of the Public Water Supply. These rules mandate that any commercial property, including restaurants, with a cross-connection to the potable water supply must install, maintain, and annually test an approved backflow prevention assembly. This prevents contaminated water from your dishwashers, boilers, or cleaning systems from flowing backward into the city's clean drinking water mains. The primary issuing authority for enforcing this certification is Denver Water, often in coordination with the Denver Department of Public Health & Environment (DDPHE).
Operating without a current certification exposes your business to significant operational and financial risks. The consequences are immediate and severe:
- Service Disconnection: Denver Water has the authority to physically disconnect your water service for non-compliance, halting all operations.
- Financial Penalties: You will face escalating fines for every day the violation persists. While specific amounts are set by ordinance and can vary, daily fines for public health code violations in Denver are substantial and cumulative.
- Required Remediation & Permit Impacts: You'll be forced to hire a licensed tester for emergency service, pay re-inspection fees, and your other city permits (like your business or food service license) can be flagged or revoked until compliance is restored.
- Lease & Insurance Issues: Most commercial leases require compliance with all city codes. A violation can put you in default. Similarly, property and liability insurers may deny claims related to water damage or public health incidents if they stem from a known, uncorrected code violation.
Legal code: Local sewer use regulations, water connection requirements, road/sidewalk ordinances, grease discharge limits
Recent update: In recent years, Denver Water has accelerated its electronic record-keeping and notification system for backflow test reports, moving away from paper-based submissions and emphasizing digital verification for faster compliance tracking.
Who Needs a Backflow Prevention Device Certification?
| Type | Required | Notes |
|---|---|---|
| Restaurant (Full-Service) | Required | Required by Denver Water, as their plumbing systems typically have cross-connections (e.g., dishwashers, pre-rinse spray valves) that pose a contamination risk to the public water supply. |
| Bar / Nightclub | Required | Required by Denver Water if they have soda guns, post-mix systems, glasswashers, or any other equipment connected to both potable water and waste/chemical lines. |
| Food Truck | Required | Required by Denver Water if connected to a city water hydrant or other potable source; mobile units must have an approved, testable device installed in their water line. |
| Coffee Shop / Café | Required | Required by Denver Water, as commercial espresso machines, steam wands, and dipper wells create direct cross-connections between potable water and food/beverage reservoirs. |
See which restaurant types need this requirement — and which don't.
See Full Requirements →Field-by-Field Guide (21 Fields)
17 of 21 auto-filledRestaurant Legal Name
textEnter the legal business name exactly as registered with the Colorado Secretary of State or on your local business license—this must match your official tax and legal documents, not your DBA or trade name.
COMMON MISTAKE: Using the restaurant's operating or 'doing business as' (DBA) name instead of the registered legal entity name, which the Denver Department of Transportation & Infrastructure (DOTI) will flag as a mismatch.
Restaurant Address
textEnter the complete physical street address of the restaurant facility where the backflow prevention devices are or will be installed, including the suite or unit number if applicable.
COMMON MISTAKE: Entering a P.O. Box, corporate office address, or an incomplete address (missing suite number), which fails to specify the exact inspection location and causes processing delays.
Contact Phone
textProvide a direct, working phone number for the primary point of contact who can schedule the device test and answer questions from Denver DOTI inspectors.
COMMON MISTAKE: Listing an inactive number, a personal cell phone without voicemail set up, or a main line that routes to a general voicemail, causing missed inspection scheduling calls.
Contact Email
textProvide a valid, monitored email address for the primary contact to receive official correspondence, test results, and certification notices from Denver DOTI.
COMMON MISTAKE: Using a generic or infrequently checked email address, or one with typos, which leads to missed compliance deadlines and official notices.
Water-Connected Equipment
textList all equipment connected to the potable water supply that could create a cross-connection, such as dishwashers, ice machines, soda dispensers, water filtration systems, boiler make-up lines, and irrigation systems.
COMMON MISTAKE: Providing an incomplete or generic list (e.g., 'kitchen equipment'); inspectors require specific makes/models and connection points for each item to assess hazard levels accurately.
Facility Blueprints Available
checkboxCheck this box only if you have—or your contractor has—accurate, up-to-date plumbing blueprints or as-built drawings that detail the water system layout and backflow device locations.
COMMON MISTAKE: Checking 'yes' without actually having the documents readily available for the inspector's review, which can result in a failed initial inspection and rescheduling fees.
Cross-Connection Points
textDescribe the specific physical points where potable water could mix with non-potable sources, such as hose bibs in mop sinks, chemical injection lines for dishwashers, or boiler feed lines.
COMMON MISTAKE: Failing to identify all potential cross-connections or using vague terminology; Denver DOTI requires precise locations (e.g., '3/4" hose bib on janitor sink, south wall') to determine device placement.
Hazard Classification
textEnter the hazard level for each cross-connection as defined by Denver's plumbing code—typically 'High Hazard' (health risk, e.g., chemical contact) or 'Low Hazard' (pollution risk, e.g., irrigation).
COMMON MISTAKE: Misclassifying a high-health-hazard connection (like a boiler with chemical treatment) as 'Low Hazard,' which leads to specifying an insufficient backflow device and a failed installation inspection.
Obtained Approved Contractor List
checkboxCheck this box to confirm you have obtained the current list of Denver DOTI-certified backflow prevention assembly testers and installers, required for all work on commercial food service facilities.
COMMON MISTAKE: Checking this box without verifying the contractor's current certification status with Denver DOTI; using an uncertified contractor voids the test report and requires a re-test by an approved professional.
Selected Contractor Name
textEnter the full business name of the Denver DOTI-certified contractor you have selected to install and/or test the backflow prevention devices, as it appears on the official approved list.
COMMON MISTAKE: Listing a contractor who is not currently on Denver's approved list, or abbreviating the business name in a way that doesn't match official records, which invalidates the application.
ApronPrep auto-fills 17 of 21 fields from a single compliance interview — no re-typing, no guessing what the government expects.
Top 5 Backflow Prevention Device Certification Mistakes
1. Incorrect or Missing Device Test Results
Submitting a test report with incomplete data (e.g., missing static pressure reading or relief valve opening point) or using an expired test kit calibration certificate. The Denver Department of Transportation & Infrastructure (DOTI) Water Quality Division will reject the submission, requiring a re-test by a certified tester. This adds 1–2 weeks to your timeline and incurs an additional tester fee. Ensure your tester uses a properly calibrated, current-year test kit and completes all fields on the approved Denver test report form.
2. Listing an Unapproved or Out-of-Spec Backflow Assembly
Failing to verify that the installed device model is approved for use in Denver or that its installation meets local specifications (e.g., incorrect elevation above floor or insufficient clearance). Denver follows the Uniform Plumbing Code and maintains a list of approved assemblies; using an unlisted model results in automatic rejection. This mistake forces a costly device replacement, delaying final approval by 3–4 weeks. Cross-reference the device's model and serial number with Denver DOTI's current approved assemblies list before submitting.
3. Submitting Under the Wrong Premises or Account Number
Entering the property address incorrectly or using a Denver Water account number that does not match the service address. Denver's system cross-checks these details against utility records; a mismatch triggers a manual review and rejection. This bureaucratic error can add 10–15 business days to processing. Double-check the official Denver Water bill for the exact service address and 10-digit account number, and enter them precisely as they appear.
Skip the Paperwork on Your Backflow Prevention Device Certification
ApronPrep auto-fills 17 of 21 fields from one compliance interview.
No credit card required
Backflow Prevention Device Certification by City in Colorado
| City | Fee Range | Timeline |
|---|---|---|
| Aurora | Contact Aurora Water Department for current certification and testing fees | Testing typically completed within 1-2 hours once scheduled; certification valid for 12 months; allow 2-4 weeks advance scheduling |
| Colorado Springs | Contact authority for current fees - certification fees vary based on device type and inspector | 2-6 weeks from initial contact to completed certification (dependent on inspector availability and scheduling) |
| Denver | Contact Denver Water at 303-893-2444 for current certification and testing fees; fees typically include device testing service charges | Initial certification: 2-4 weeks after test report submission; Annual renewal: ongoing with annual testing requirement |
Government Filing Fees
- Contact Denver Water at 303-893-2444 for current certification and testing fees
- fees typically include device testing service charges
Timeline: Varies
Step 1: Identify your water connection type and determine if backflow prevention is required for your commercial restaurant operation
Review your facility's water system to determine if you have a high-hazard, medium-hazard, or low-hazard connection. Most restaurants with on-site food prep, chemical storage, or irrigation qualify as high-hazard and require backflow prevention. Contact Denver Water's Cross-Connection Control Program at (720) 913-1234 to confirm your facility's hazard classification — this typically takes 1–2 business days via phone or 3–5 days via email.
Step 2: Contact Denver Water's Cross-Connection Control and Backflow Prevention Program (BPCCC) to request certification requirements specific to your facility
Call (720) 913-1234 or email the BPCCC to request the specific device type and installation location required for your facility. Denver Water will provide written guidance referencing Engineering Standards Chapter 5.05. Have your facility address, water account number, and a description of your food prep systems ready. Response typically arrives within 3–5 business days.
Step 3: Install an approved backflow prevention device on your commercial water connection (must meet Denver Water Engineering Standards Chapter 5.05)
Hire a Colorado-licensed plumber to install the device Denver Water specified in Step 2. The device must be installed at the water meter or main service line and meet Chapter 5.05 specifications. Keep the installation invoice and permit (if required by the City and County of Denver). Installation typically takes 1–2 business days, plus 2–5 days for permit approval if required.
Where to Apply
Applications are handled by your local department of public works (dpw) in each city. Select your city below for authority details, fees, and processing timeline.
Other Requirements You'll Need
This is one of 13 requirements for opening a restaurant in Colorado.
ADA Compliance Self-Certification
federal
Alarm System Permit/Registration
local
Application for Employer Identification Number
federal
Articles of Organization (LLC) or Articles of Incorporation (Corporation)
state
See all co-required forms and how they connect to your compliance dossier.
See All RequirementsTimeline varies depending on the complexity of your device installation and the Denver Water Department's current workload, but initial inspections typically occur within 2–4 weeks of your application submission. Once inspection is scheduled, the certification process itself (inspection + approval) usually completes within 1–2 business days if your device meets all code requirements. Contact the Denver Water Department to confirm current processing times, as seasonal demand can affect scheduling.
Government filing fees for backflow prevention device certification in Denver range from **$303 to $2,444**, depending on the type and complexity of your device (e.g., reduced pressure principle devices, double check valves, or combination systems). This fee is set by the Denver Water Department and covers the inspection and certification. Not legal advice — verify the exact fee for your device type with the Denver Water Department before submitting your application.
No, backflow prevention device certifications are location-specific and tied to the physical address where the device is installed. If you relocate your restaurant or move equipment to a new site, you must submit a new certification application for the new location and pay the applicable government filing fee again. Before relocating, also confirm whether your new site requires a Building Permit or other modifications that could affect your backflow device installation.
Backflow prevention device certifications in Denver typically require annual renewal, as mandated by the Denver Water Department to ensure your device continues to meet current code standards. You will receive renewal notices from the Denver Water Department, usually 30–60 days before expiration. Failure to renew by the deadline can result in a cease-of-operations notice from the water department, so mark your calendar and submit renewal applications promptly.
During the inspection, a Denver Water Department inspector will verify that your device is properly installed, functioning correctly, and meets all plumbing and backflow code requirements under the International Plumbing Code as adopted by Denver. The inspector checks device type, installation location, test cocks, labeling, and proper connection to your water service line. If your device fails inspection, you will receive a written deficiency notice; most failures require device repair or replacement by a certified backflow prevention specialist, after which you can request a re-inspection (additional fees may apply).
Yes, in most cases the Certificate of Occupancy inspection will include verification of your backflow prevention device certification. The City and County of Denver requires proof of a valid, current backflow certification as part of the final occupancy sign-off for food service establishments. This means you should obtain your backflow device certification before or concurrently with your Certificate of Occupancy application to avoid delays in opening your restaurant.
About This Data
This guide is generated from ApronPrep's compliance dossier system, which uses 53 parallel AI authority experts to discover requirements, then downloads actual forms and generates field-level intelligence for each one.
For Colorado specifically, we have analyzed compliance dossiers for 3 cities (Aurora, Colorado Springs, Denver), generating Rich FILs (Form Intelligence Layers) with 21 form fields analyzed for this requirement. Fee data is sourced from actual county department fee schedules, not estimates.
Our data is verified against official government sources and updated when regulatory changes are detected. If you find an error, please report it — accuracy is our core commitment.
Sources
- Local sewer use regulations, water connection requirements, road/sidewalk ordinances, grease discharge limits
- Aurora — Department of Public Works (DPW)
- Colorado Springs — Department of Public Works (DPW)
- Denver — Department of Public Works (DPW)
This Form Is One of 60+ Requirements.
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