Plumbing Codes and Permits by City
What each Valley city, Arizona law and the Uniform Plumbing Code actually require, with a link to the official source on every page.
Valley-Wide
All 17 Valley-Wide pages- City ComparisonVerified Oct 20262024 International Plumbing Code Section 708 (Cleanouts); Phoenix amendments to 2024 IPC 1003.3.5.3 and 2024 UPC 1014.2.3 and 1014.3.5; Mesa City Code 8-4-8(E) and (F); Litchfield Park City Code 7-2-2(A)(1)Commercial Sewer Cleanout Requirements by Valley CityValley cities on the 2024 IPC require cleanouts every 100 feet on building sewers under 8 inches, at the building drain and sewer junction, and at turns over 45 degrees. Sewers 8 inches and larger need manholes instead. Phoenix adds a two-way cleanout on the outlet of grease interceptors.
- City ComparisonVerified Sep 2026Tolleson City Code 12-1-20(A)(7)(g), IFGC 404.12 (as amended)Gas Line Burial Depth Rules in Each Valley CityMetal gas pipe goes at least 12 inches below grade everywhere compared here. Plastic goes 18 inches in Mesa, Gilbert, Queen Creek, Buckeye, Surprise, Tolleson and the county. Phoenix allows 8 inches for a single outdoor appliance line; Mesa, Gilbert, Queen Creek, Surprise, Tolleson and the county deleted that exception (Tolleson 12-1-20).
- City ComparisonVerified Sep 2026Tempe City Code 8-105 (105.1, 105.2 Fuel gas)Gas Line Permits in Each Valley CityYes, in all 13 jurisdictions compared here. Adding, extending, replacing or repairing gas piping takes a permit and inspection; only portable appliances and minor part swaps are exempt (Tempe 8-105). Phoenix and Scottsdale issue outdoor-appliance lines without plan review, while Chandler, Mesa and Buckeye want a piping diagram with every appliance's BTU load.
- City ComparisonVerified Sep 2026Mesa City Code 4-7-2, IFGC 406.4.1 and 406.4.3 (as amended)Gas Line Pressure Test Rules in Each Valley CityIt depends on the city. Phoenix, Chandler and Buckeye test new gas piping at 1.5 times working pressure, never under 3 psig. Mesa, Gilbert and Queen Creek require at least 10 psi, and 60 psi for welded pipe or gas above 14 inches water column (Mesa 4-7-2, Gilbert 10-35-2, Queen Creek 7.2.6).
- City ComparisonVerified Sep 2026Phoenix Building Construction Code 110.3.10.1 (2024 IBC Chapter 1 as amended)Getting Gas Turned On After Inspection in Each Valley CityNot until the gas work passes final inspection. Phoenix, Mesa and Maricopa County bar connecting fuel until the building official authorizes it, then clear the gas utility to turn on. In Phoenix a meter locked for a leak on the customer's side needs a permit and city clearance; a non-payment lockoff goes straight to Southwest Gas (TRT 00930).
- City ComparisonVerified Sep 2026Glendale City Code 33-238(d); Phoenix City Code 28-15; Mesa City Code 8-4-22(D); Scottsdale City Code 49-95(d)Grease Interceptor Records and Inspections by Valley CityEvery Valley city compared here wants grease interceptor cleaning and repair records kept at the business for three years and shown on request. Chandler lists what each record must show, including a county-licensed hauler. Phoenix inspects unannounced, and the Fountain Hills Sanitary District inspects at least once a year.
- City ComparisonVerified Sep 2026Maricopa County Plan Review Construction Guide, Grease Interceptors/Grease TrapsGrease Trap and Interceptor Rules by Valley CityEach Valley city sets its own grease rules, because Maricopa County leaves sizing to cities. Phoenix, Mesa, Scottsdale and Tempe allow an indoor grease trap only with four or fewer fixtures and no dishwasher. Required pumping runs from every 30 days (Phoenix traps) to every 180 days (Glendale), and enzymes never replace pumping.
- City ComparisonVerified Oct 2026Mesa City Code 8-4-16 and 8-4-18; Gilbert Town Code 66-232 to 66-234; Scottsdale City Code 49-93 and 49-165; Avondale City Code 24-104; Tolleson City Code 11-3-1Industrial Wastewater Pretreatment Permits by Valley CitySignificant industrial users need a city wastewater discharge permit before they discharge, and smaller users can be pulled in when their discharge could harm the sewer. Apply early: Scottsdale wants the application 180 days ahead and Gilbert 90. Phoenix wants pretreatment plans approved before building plan submittal.
- City ComparisonVerified Sep 2026Phoenix Street Pavement Cut Policy (TRT/DOC/00164) and City Code 31-49.1Pavement Cut and Street Restoration Rules by Valley CityThe contractor who cuts the street restores it, and the restoration is bigger than the trench. Phoenix requires a slurry seal at least 25 feet past every cut, and a mill and overlay across the lanes if the street is under 24 months old. Mesa, Glendale, Chandler and Surprise refuse most cuts for two years after paving.
- City ComparisonVerified Sep 2026ADEQ Type 4.01 General Aquifer Protection Permit (A.A.C. R18-9-E301)Private Sewer Lift Station and Ejector Rules by Valley CityA private lift station on a sewer with manholes or over 3,000 gallons a day needs ADEQ's Type 4.01 permit, two pumps and level alarms. Cities add their own layer: Phoenix allows private stations under 1 million gallons a day, Gilbert wants yearly O&M records, and Scottsdale, Peoria and Glendale expect city involvement from the start.
- City ComparisonVerified Sep 2026Maricopa County Drainage Policies and Standards, Standard 6.10 (Stormwater Storage)Retention Basin and Drywell Rules by Valley CityEvery Valley city makes commercial sites hold their own stormwater and empty it within 36 hours, but the details differ. Most size basins for the 100-year, 2-hour storm; Gilbert uses the 50-year, 24-hour storm and Tempe the 100-year, 1-hour. Drywells are a last resort in Mesa, Chandler and Peoria, and required in every Avondale basin.
- City ComparisonVerified Sep 2026Phoenix Building Construction Code, Administrative Provisions Sec. 105.1 item 2Right-of-Way Permits for Plumbing Work by Valley CityEvery Valley city we checked requires one. A plumbing permit covers work on the lot; digging in a street, alley or sidewalk for a sewer or water line takes a separate right-of-way or encroachment permit from the city engineer. Phoenix says so in Building Code 105.1, Mesa in City Code 9-1-2, Scottsdale in 47-50.
Phoenix
All 42 Phoenix pages- Local AmendmentVerified Oct 2026Phoenix amendment to 2024 IPC 803.1, Neutralizing device required for corrosive wastes (Ord. G-7397, effective 2025-08-01); 40 CFR 403.6(d)Can a Phoenix business dilute corrosive waste instead of neutralizing it?No. Phoenix strikes dilution from the model plumbing code. Corrosive liquids, spent acids and other harmful chemicals must be neutralized or treated in an approved neutralizing device, and the waste and the treatment method must be approved before installation. Federal rules generally prohibit dilution as a substitute for required pretreatment.
- PermitVerified Sep 2026PBCC Administrative Provisions Sections 105.1.1, 105.1.2 and 117 (2024 IBC Chapter 1 as amended)Can a Phoenix business get an annual permit for plumbing alterations?Yes, for qualifying facilities. Phoenix can issue an annual permit instead of one permit per alteration to an already approved plumbing installation. The holder needs an Arizona registered architect or engineer as its agent and must keep records. In practice the annual permit runs through the city's Annual Facilities Program, Section 117.
- City CodeVerified Oct 2026Phoenix City Code 37-53, meter location, relocation and testingCan a plumber or owner move a water meter in Phoenix?No. Phoenix City Code 37-53 lets only authorized Water Services representatives move or remove a meter. If anyone else does, the city shuts off water to the property and won't restore it until the customer pays the cost of putting the meter back. Meters belong on the sidewalk side of the curbline.
- City CodeVerified Sep 2026Phoenix City Code 37-142 (Chapter 37, Article XII); 37-144(b) (auxiliary water systems); 2024 IPC 608.7.2 as amended by PhoenixCan you connect city water to a well or other water source in Phoenix?Not without written approval from the Water Services Director. Phoenix bars any connection between city water and another water source, such as a well, cooling loop or reclaimed line. Where an auxiliary supply is approved, the service needs an air gap or reduced pressure (RP) assembly at the meter.
- Local AmendmentVerified Oct 2026Phoenix amendments to 2024 IPC 605.25 and 2024 UPC 604.14 (Ord. G-7397, effective 2025-08-01)Can you use PVC, CPVC or PEX water pipe outdoors in Phoenix?No. Phoenix's plumbing code amendments bar nonmetallic potable water pipe, fittings and valves from exposed exterior locations such as roofs, ground surfaces and exterior walls. Exposed outdoor water piping must be an approved metal, listed in the code's material tables.
- PermitVerified Oct 2026Phoenix Fire Code Sections 105.6.16 and 105.5.30Do you need a fire permit for a propane (LP-gas) tank in Phoenix?Yes. Phoenix Fire Code 105.6.16 requires a Fire Department construction permit to install, alter or modify an LP-gas system, and Phoenix added small vapor-service tanks at single-family homes (Group R-3) to the list. Containers over 125 gallons also need construction documents, and some storage needs an operational permit under 105.5.30.
- City CodeVerified Sep 2026Phoenix City Code 28-27 (Chapter 28, Article IV, Connections to Public Sewers and Charges)Do you need a permit to connect to or work on a public sewer in Phoenix?Yes. Phoenix City Code 28-27 bars anyone from uncovering, connecting to, using, altering or disturbing a public sewer without a permit from the Water Services Department. Industrial users get their permit under Article VI, and short temporary discharges need an authorization form filed at least ten days ahead.
- PermitVerified Sep 2026Phoenix TRT 00634 (Rev. 7/25), Section B1; 2024 Phoenix Building Construction Code, Administrative Provisions Sec. 105.2, Plumbing, item 6; City Code 37-143Do you need a permit to install or replace a backflow preventer in Phoenix?Yes. Phoenix requires a plumbing permit to install, alter or replace a backflow assembly, and the inspection costs $195 for the first device and $98 for each additional. The 2024 building code exempts repair or replacement of an existing secondary assembly 2 inches or smaller if a certified tester's report is submitted.
- PermitVerified Sep 2026Phoenix Building Construction Code, Administrative Provisions Sec. 105.1, item 2 (IBC Ch. 1 as amended); City Code 28-28 and 28-29Do you need a separate permit for a water or sewer tap in Phoenix?Yes. Phoenix requires a separate Planning and Development permit for work in the public right of way, including sewer or water taps and connections to public sewer and water. It is in addition to your plumbing permit, and the sewer tap application needs a valid plumbing permit first.
- PermitVerified Sep 2026Phoenix FOG Best Management Practices Manual, Installation and Replacement of Interceptors and Appendix B (June 2024)Do you need plan review to replace a grease interceptor in Phoenix?Yes. Phoenix requires plan review for every grease interceptor installed or replaced. A like-for-like swap of a grease trap can be reviewed over the counter. A new gravity interceptor or any re-piping goes through electronic plan review. A certificate of occupancy is required for these reviews.
- Permit FeeVerified Oct 2026Phoenix PDD Fee Schedule, Appendix A.2, Table A: Building Safety Valuation-Based Permit FeeHow does Phoenix calculate a plumbing permit fee?Phoenix charges plumbing permit fees by project valuation using Table A of its PDD Fee Schedule. Jobs valued $1 to $1,000 pay a $195 base fee, or $98 for a residential water heater. Above that, the fee steps up per $1,000 of value, and plan review adds 80 to 100 percent of the permit fee when review is required.
- City CodeVerified Oct 2026Phoenix Water Meter Sizing Guideline (TRT 00142)How does Phoenix size a water meter for a new building?Phoenix sizes water meters from the table in its Water Meter Sizing Guideline (TRT 00142). Each meter size has a maximum flow and fixture unit count, from 20 gpm for a 3/4-inch meter to 1,600 gpm for an 8-inch compound meter. A design over the limit moves up a size, and new building taps start at 1 inch.
Scottsdale
All 25 Scottsdale pages- Local AmendmentVerified Oct 2026Scottsdale Revised Code Sec. 31-9 (IBC 111.3 as amended)Can a Scottsdale business open on a temporary certificate of occupancy?Yes, if Scottsdale's building official finds no substantial hazard. Sec. 31-9 lets a nonresidential building open on a temporary certificate that lasts no more than 180 days. You post a deposit of all project permit fees or $2,500, whichever is greater, and power is cut and the building vacated when it expires.
- City CodeVerified Oct 2026Scottsdale Revised Code Sec. 49-66Can Scottsdale shut off your water for a backflow violation?Yes. Scottsdale can disconnect a customer supply line for a missing, bypassed, removed or badly tested backflow assembly, or an unprotected cross-connection. It first mails a 30 day notice, then a certified-mail notice giving 10 more days. It can shut off without notice if your system is contaminating the public supply.
- City CodeVerified Oct 2026Scottsdale Revised Code Sec. 49-242Do you need a permit for a commercial water feature in Scottsdale?Yes. Scottsdale Revised Code Sec. 49-242 requires a water feature plan, Water Conservation Office approval and a permit before construction for commercial, non-residential and multifamily common-area features. The feature must have an RP backflow assembly, recirculate, stay within 10 feet in any direction, and cannot mist or spray over 6 feet.
- PermitVerified Oct 2026Scottsdale Revised Code Sec. 49-63(a) and Sec. 49-68Do you need a permit to install a backflow preventer in Scottsdale?Yes. Scottsdale requires a permit for each backflow assembly, including a replacement, and the installation must be finished within 45 days. The assembly goes in an accessible spot as close as possible to the service connection. New projects must show it on plans and pass a certified test before a temporary certificate of occupancy.
- PermitVerified Oct 2026Scottsdale Permit Services page, Plumbing Permit; Home Improvement Project Guidance (Minimum Plumbing Permit)Do you need a permit to replace a water heater in Scottsdale?Yes. Scottsdale's Permit Services page requires a plumbing permit for water heater replacement, gas or electric. For a single-family home it is a Minimum Plumbing Permit applied for in Scottsdale SPUR, with no plan review, followed by an inspection. The FY26-27 fee schedule lists water heaters (except solar) at $63.
- PermitVerified Oct 2026Scottsdale Home Improvement Project Guidance (Plumbing Permit and Minimum Permit lists)Do you need a plumbing permit in Scottsdale?For most plumbing work, yes. Scottsdale's Home Improvement guidance requires a plumbing permit to install, alter, reconstruct or repair any plumbing system, gas system or lawn sprinkler supply. Single-family jobs like fixture swaps, water heaters, repipes and gas lines to outdoor appliances need only a Minimum Permit, with no plan review. Irrigation piping repair needs none.
- PermitVerified Oct 2026Scottsdale Revised Code Sec. 47-50 (PWR) and Sec. 47-51 (PIR)Does Scottsdale require a permit to dig in the right-of-way for plumbing?Yes. Scottsdale requires a Permit to Work in the Right-of-Way (PWR) for borings, potholing, curb cuts, barricades and any work that builds, installs or repairs improvements in the street. Regular utility maintenance can use an annual PWR. The city may require a cash deposit or letter of credit on busier streets.
- City CodeVerified Oct 2026Scottsdale Revised Code Sec. 49-118How do private sewers connect to the public sewer in Scottsdale?Scottsdale requires private sewers on non-subdivided commercial and industrial properties and allows them in multifamily developments. A private sewer stays out of public easements and streets except to connect, and it stays private until it enters the public manhole or sewer. Buildings on separate lots may share a private line only through an association that pays the sewer bill.
- City ProgramVerified Oct 2026Scottsdale Water Quality Pretreatment program; Scottsdale Revised Code Sec. 31-85 (IPC 1005, 1006) and Sec. 49-95How does Scottsdale inspect restaurant grease traps?Scottsdale Water Quality inspects each restaurant. Code requires a complete cleaning by a licensed contractor every 30 days for interceptors rated 100 gpm/200 pounds or less, and every 90 days for larger units, or sooner at 25 percent full. Keep written logs on site for three years. Enzymes cannot replace pumping.
- PermitVerified Oct 2026Scottsdale Commercial Plan Review page, Plan Review Time Frames in Business DaysHow long does Scottsdale take to review a tenant improvement with plumbing?Scottsdale's Commercial Plan Review page lists 7 business days for administrative review and 10 business days for substantive review of a tenant improvement. Plumbing is part of the construction documents, so it rides that clock. Corrections send the plans back, and the process restarts when you resubmit.
- City CodeVerified Oct 2026Scottsdale Revised Code Sec. 49-65(b) to (e)How often must a Scottsdale backflow assembly be tested, and by whom?Scottsdale requires every backflow assembly to be tested at least once a year by a certified individual the city recognizes. The city mails a notice when a test is due. A failed assembly must be repaired or replaced within 45 days of that notice, and the owner must send the test record to the city within 7 days.
- City ProgramVerified Oct 2026Scottsdale Water Quality Pretreatment page; Scottsdale Revised Code Sec. 49-95 and Sec. 31-85 (IPC 1005.5)How often must a Scottsdale car wash or repair shop pump its interceptor?The city's Pretreatment page says Scottsdale car washes, repair shops and fleet facilities must pump and clean their interceptor at least once a year, more often if discharge requires. Code Section 31-85 sets 90 days for sand and grease interceptors over 100 gpm/200 pounds. Keep pump-out records on site for three years.
Paradise Valley
Paradise Valley hub- PermitVerified Oct 2026Paradise Valley Town Code Sec. 5-10-1(A) to (C)Does Paradise Valley require a permit to dig in the right-of-way?Yes. Paradise Valley requires a Town permit for any work on, over or under a public road, street or alley, and that includes sewer and water trenches. Each permit covers one site and one duration and goes void if work has not started in 90 days. A permanent encroachment needs a separate encroachment permit from the Town Engineer.
- PermitVerified Oct 2026Paradise Valley Town Code Sec. 15-2-5 and Sec. 15-2-10What permit does Paradise Valley require to connect to the sewer?Paradise Valley requires a permit from the Town Engineer to uncover, connect to, alter or disturb a public sewer, and a permit before anyone digs up a street, alley or right-of-way to connect. The street must be restored. A building connection application also needs a valid Town plumbing permit first.
- City CodeVerified Oct 2026Paradise Valley Town Code Sec. 15-2-15 to 15-2-18When does Paradise Valley require a grease, oil or sand interceptor?Paradise Valley Town Code 15-2-15 requires grease, oil and sand interceptors when the Town Engineer finds them necessary for wastes with excessive grease or oil, flammables or sand. Homes are excluded. The Town Engineer approves type, capacity and an accessible location, and the owner keeps the interceptor working at the owner's expense.
- Adopted CodesVerified Oct 2026Paradise Valley Town Code Sec. 5-5-1 and 5-5-2 (IPC); Sec. 5-7-1 and 5-7-2 (IFGC); Sec. 5-2-1 and 5-2-2 (IRC)Which plumbing code does Paradise Valley use?Paradise Valley uses the 2015 International Plumbing Code, adopted in Town Code Sec. 5-5-1, with Town amendments in Sec. 5-5-2. Gas work follows the 2015 International Fuel Gas Code (Sec. 5-7-1) and homes the 2015 International Residential Code (Sec. 5-2-1). Scottsdale is on the 2021 IPC and Phoenix on the 2024 codes.
Fountain Hills
- PermitVerified Oct 2026FHSD Building Permit Review and Construction Checklist, item 1a (effective 3/30/2018)When does Fountain Hills require a sewer easement encroachment permit?For proposed work in a public utility easement containing a sewer main, the District checklist requires an encroachment application. Approval is conditional. If granted, include the permit in the Town building-permit resubmittal. The District also reviews easement abandonment and inspects sewer connections before burial.
- City CodeVerified Oct 2026Fountain Hills Town Code 7-1-1(A)(6), 7-1-2 and 7-1-3, adopted by Ordinance 25-06; Town Adopted Codes pageWhich plumbing code does Fountain Hills use? 2024 IPC and IRC, since September 1, 2025Fountain Hills adopted both the 2024 International Plumbing Code and the 2024 International Residential Code for One- and Two-Family Dwellings, effective for building permit applications received on or after September 1, 2025. Ordinance 25-06 makes no Town amendment to the IPC, but it amends the IRC, including plumbing section P2904. Permit fees are set by council resolution.
- City ProgramVerified Sep 2026Mesa City Code 4-1-4(U), Permit-by-Inspection ProgramCan a Mesa tenant improvement use permit-by-inspection? City Code 4-1-4(U)Small tenant improvements in Group B, M or S space can use Mesa's permit-by-inspection program if they are 10,000 square feet or less, involve no change of occupancy (except between B and M), no high piled storage or hazardous materials, and need no added zoning approval. An inspector reviews and issues the permit. Using it is optional.
- City CodeVerified Sep 2026Mesa City Code 8-1-13, Termination of Water ServiceCan Mesa shut off your water for backflow violations? City Code 8-1-13Yes. Mesa Water Resources may terminate water service if backflow protection is missing, removed, bypassed or not working, if the annual test or its records are late, or if an unprotected cross connection exists. If the hazard is imminent it can act immediately. Service stays off until the problem is fixed and penalties and fees are paid.
- City CodeVerified Sep 2026Mesa City Code 9-1-6, Pavement Restoration Fees, Pavement Cut RestrictionsCan you cut a newly paved Mesa street for a sewer or water repair? City Code 9-1-6Usually not for two years. Mesa's City Engineer will not approve a right-of-way permit to cut a street for two years after the city accepts new pavement, renovation, reconstruction or street maintenance. Exceptions cover emergencies, lost essential service, building service with no other route and legal mandates. Cuts within five years also pay a restoration fee.
- City CodeVerified Oct 2026Mesa City Code 8-4-5 (private wastewater systems) and 8-4-10(C) (existing septic tanks)Can you keep a septic tank in Mesa? City Code 8-4-5 and 8-4-10(C)Existing Mesa septic tanks may continue while they meet county health standards. New private systems are restricted to cases where the county determines that public sewer is unavailable. An existing septic tank may keep running while it meets Maricopa County health standards, and once the county finds it in violation the owner must connect to the sewer.
- PermitVerified Sep 2026Mesa City Code 4-1-6, CertificatesDo you need a certificate of occupancy to open or change a Mesa business? City Code 4-1-6Yes. In Mesa no building can be used, and no occupancy classification changed, until the Building Safety Director issues a Certificate of Occupancy after inspection. It also waits on unpaid city taxes and accounts. A partial or temporary certificate can cover part of a project, and the original is free.
- PermitVerified Sep 2026Mesa City Code 8-4-8, Building Connections; Permit, Approval, Records, and ResponsibilityDo you need a permit to connect a building to the Mesa sewer? City Code 8-4-8Yes. Any connection to, opening into or alteration of Mesa's public sewer needs a written permit from Development Services, and a valid plumbing permit comes first. The owner maintains the building connection pipe from the building to the public sewer, except that the city repairs a broken section located off-property in a street or alley.
- PermitVerified Sep 2026Mesa City Code 4-1-4(B)3(c) and (e), 4-1-4(B)5(c) to (e), 4-1-4(C); Mesa Residential Construction FAQDo you need a permit to replace a water heater in Mesa? City Code 4-1-4(B)5 and the city FAQUsually not for a like-for-like swap. Mesa City Code exempts gas water heater replacements of equal or lower Btu rating, and electric ones of equal or lower amperage, in homes and individual tenant spaces. For gas, the serving gas utility must be notified before the unit is energized. Storage to tankless needs a permit.
- PermitVerified Sep 2026Mesa City Code 9-1-2, Right-of-Way Permits; 9-1-3, Notification; 9-1-8, Stop Work Orders; 8-4-4, Digging Up StreetsDo you need a right-of-way permit for plumbing work in a Mesa street or alley? City Code 9-1-2Yes. Mesa requires a Right-of-Way Permit before anyone excavates or works in a street, alley or public easement, including sewers and water mains. Apply with engineering plans, and the City Engineer reviews and inspects the work. Give 24 hours notice before starting. Digging a street to connect to the sewer also needs the City Engineer's permit.
- PermitVerified Sep 2026Mesa City Code 8-4-16 and 8-4-18, Class I, II and III Industrial UsersDo you need an industrial wastewater discharge permit in Mesa? City Code 8-4-16 and 8-4-18You need one if Mesa classes your business as Class I (any significant industrial user) or Class II (a smaller user the city finds could harm the sewer or worker safety). Class III needs no permit. Mesa issues permits within 60 days of a complete application, for up to five years, and they cannot be transferred.
- PermitVerified Oct 2026Mesa City Code 8-10-9Does a Mesa business need a Multiple or Large Meter permit? City Code 8-10-9Yes, if you ask for a meter four inches or larger, or the equivalent in multiple meters. Mesa's code also requires an MLM Permit to use more than the 330 acre-foot annual demand ceiling or to take service with unusual demand. Residential-only meters and hospitals are excluded, but landscape meters are not.
- Local AmendmentVerified Oct 2026Mesa City Code 4-5-2, IPC 403.2 Exception 2, Table 403.1 footnote e, and 410.2 (as amended)Does a small Mesa business need separate men's and women's restrooms? IPC 403.2 and 410.2Not if the total occupant load is 25 or fewer, counting employees and customers. Mesa's amendments also drop the service sink requirement for businesses and stores with 100 or fewer occupants and the drinking fountain requirement at 50 or fewer. Other separate-facility exceptions and fixture-count rules still apply.
- City CodeVerified Oct 2026Mesa City Code 4-5-2, IPC 701.2 Connection to Sewer Required (as amended)Does Mesa require you to connect to the public sewer? Plumbing Code 701.2Mesa's amended plumbing code generally requires public-sewer connection. Existing lawful septic systems also have protections under City Code 8-4-10(C). Only Maricopa County Environmental Services can decide a sewer is not available, and then a private septic system meeting state and county rules is allowed. Tub, shower, bathroom sink and laundry drainage can go to a graywater system instead.
Chandler
All 41 Chandler pages- PermitVerified Sep 2026Chandler City Code 29-2.8 (amends IBC 105.1.1) and Development Department Fee Schedule 4.6.4Can a Chandler business get an annual permit for repeat plumbing alterations?Yes, Chandler can issue an annual permit for repeat alterations at a previously approved building instead of a permit for each job. The fee schedule lists it as a $1,000.00 registration plus $60.00 per hour of on-site review and inspection, with a trust account required. The scope of work is set by a building official policy.
- City ProgramVerified Sep 2026Chandler Industrial Pretreatment Program, Food Truck Discharge FormCan a food truck dump wastewater at a Chandler commissary?Only with the city's approval. A mobile food operator who wants to send gray water to a commissary in Chandler submits the city's online food truck discharge form. It names the commissary and its grease device type (grease interceptor or grease trap), its capacity in gallons, and the expected frequency and volume of discharge.
- PermitVerified Sep 2026Chandler Homeowner Building Permit Manual, How to Obtain a Building Permit; A.R.S. 32-1121(A)(5)Can a homeowner pull a plumbing permit in Chandler? Owner rules and how to applyYes, an owner can pull the permit and do the work on their own home. If you lease or rent the home to others, a licensed contractor must obtain the permit. A state presumption against owner-builders who sell or rent within a year does not apply to owner-occupants.
- City CodeVerified Sep 2026Chandler City Code 29-1.4 (Board of appeals)Can you appeal a Chandler building official decision?Yes. Under Chandler City Code 29-1.4, a property owner, or the owner's authorized representative, can appeal a building official's decision to the board of appeals. The written notice goes to the City Clerk within 30 days of receiving notice of the decision. The same board can approve alternate materials and methods of construction.
- Local AmendmentVerified Sep 2026Chandler City Code 29-4.4 (amends 2024 IPC 1003.3.7)Chandler amendment to IPC 1003.3.7: how big must a grease interceptor be?Chandler sizes gravity grease interceptors by total drainage fixture units: 0 to 21 DFU needs 750 gallons, 22 to 35 needs 1,000, 36 to 90 needs 1,250, and so on up to 3,000 gallons at 308 to 342 DFU. Above 342 DFU, an Arizona registered professional engineer must design it.
- City ProgramVerified Sep 2026Chandler Backflow Testing and Maintenance Process; City Code 52-36(G) and 52-37Chandler backflow testing: annual test, notices and water shutoffYes. Chandler requires every backflow device on a city potable water service line to be tested once a year by a certified tester, at the owner's expense. The city sends notices 60, 30 and 5 days out, and if no passing report arrives by the compliance date, water service is shut off the next working day.
- City CodeVerified Sep 2026Chandler City Code 29-1.3 (with 29-1.4 and 29-11)Chandler City Code 29-1.3: violations, penalties and stop work ordersChandler City Code 29-1.3 makes work that breaks the adopted building codes, including the plumbing code, a Class 1 misdemeanor. The building official can also issue a stop work order, and the cited work must cease immediately. The order must state its reason and the conditions for resuming work.
- City CodeVerified Sep 2026Chandler City Code 29-7 (Ord. No. 5108)Chandler City Code 29-7: International Fuel Gas Code AdoptedChandler City Code 29-7 adopts the 2024 International Fuel Gas Code for gas work in the city, effective July 1, 2025 under Ordinance 5108. Its only amendments delete the fuel gas code's Chapter 1 and replace it with Chapter 1 of the 2024 International Building Code, so permit and administration rules come from the building code.
- City CodeVerified Sep 2026Chandler City Code 52-36(H)Chandler City Code 52-36: backflow assemblies on commercial building plansChandler requires backflow assemblies to be specified and located on the construction plans for new buildings, additions with new water services and changes of use, and the city must approve them before the building permit is issued. Once installed, the owner must have each assembly inspected and tested at least once a year.
- Local AmendmentVerified Sep 2026Chandler City Code 29-4.3 (amends 2024 IPC 410.4, Substitutions)Chandler drinking fountain rules: when a water dispenser can replace oneYes, in most occupancies. Chandler City Code 29-4.3 lets a water dispenser connected to the potable water system stand in for the first required drinking fountain, and a dispenser can replace not more than 50 percent of the required fountains. It does not change the accessible-fountain rules under the ADA.
- Local AmendmentVerified Sep 2026Chandler City Code 29-6.7 (amends IRC R105.2, work exempt from permit)Chandler plumbing and gas work that needs no permit (City Code 29-6.7)For work governed by Chandler's 2024 IRC, Section 29-6.7 exempts listed like-for-like replacements when the specified rating is equal or lower and the equipment stays in the same location. Confirm the code governing your building first: the parallel IBC list in 29-2.11 limits these added replacements to Group R-3 occupancy.
- PermitVerified Sep 2026Chandler Homeowner Building Permit Manual, List of Required Inspections; Chandler inspection codes 729 to 746Chandler plumbing inspections: the required list and inspection codesChandler inspects plumbing in stages, and each stage must be exposed and passed before the work is covered: groundwork, water piping, building sewer, water service, upper-level drainage, rough plumbing under pressure test, and a final. The city's inspection codes for plumbing run from 729 to 746. Request each inspection at least one business day ahead.
Gilbert
Gilbert hub- Local AmendmentVerified Oct 2026Gilbert Town Code 10-34-2, IPC 608.17.1.1 as amendedDoes a restaurant soda machine need a backflow assembly in Gilbert?Yes. Gilbert amends IPC 608.17.1.1 so the water supply connection to each carbonated beverage dispenser is protected by a reduced pressure principle (RP) backflow assembly. The part of the device after its second check valve, and the piping after that, must not be affected by carbon dioxide gas. The Town inspects backflow before a certificate of occupancy.
- City ProgramVerified Oct 2026Gilbert Town Code 66-177Does every Gilbert business have to file a wastewater discharge questionnaire?Yes. Under Gilbert Town Code 66-177, every nonresidential user connected to the town sewer, including home occupations and users exempt from a business license, completes a wastewater discharge questionnaire. It is filed with the business license application and repeated yearly with the renewal. License-exempt users file when they connect and every July 1.
- PermitVerified Oct 2026Gilbert Town Code 66-232 and 66-233, with 66-187Does your Gilbert business need a Class A or Class B wastewater discharge permit?In Gilbert, an industrial user the town designates as significant needs a Class A wastewater discharge permit, and must apply at least 90 days before any new or additional industrial discharge begins. Smaller users can be required to hold a Class B permit if the director finds their discharge could harm the sewer system. Permits run up to five years.
- City CodeVerified Sep 2026Gilbert Town Code 10-92(a)-(c)Gilbert Town Code 10-92(c): which backflow assembly does your kind of property need?Gilbert Town Code 10-92 requires an approved backflow assembly on each water service line, except single-family homes, before a certificate of occupancy issues. Subsection (c) lists 40 facility types: mostly reduced pressure (RP) assemblies, with double checks for tall buildings, laundries, food processing and medical and dental buildings.
- City CodeVerified Sep 2026Gilbert Town Code 66-244(a)-(c)Gilbert Town Code 66-244: grease removal devices for restaurants and food serviceGilbert Town Code 66-244 requires every newly built, remodeled or converted commercial kitchen with grease-generating activity to install a grease removal device at least as large as the adopted plumbing code (the 2018 IPC) requires. The town can also order a new or more effective grease removal device after grease blockages in the sewer line serving the business.
- City CodeVerified Sep 2026Gilbert Town Code 66-245 and 66-171Gilbert Town Code 66-245: floor drains and wash racks at auto shops and car washesIn Gilbert, a vehicle or equipment service facility may have no floor drains unless they connect to a wastewater pretreatment system. Parts-cleaning sinks and tanks cannot connect to the sewer, and wash rack water must pass through a pretreatment device first. The town's list covers repair, fueling, fluid changes, body work and washing.
- City CodeVerified Sep 2026Gilbert Town Code 66-8Gilbert Town Code 66-8: the permit to dig a street or alley for a water or sewer connectionGilbert Town Code 66-8 requires a permit from the building official before anyone digs up a sidewalk, street or alley to connect to the town's water, irrigation, effluent or sewer systems, and the surface must be restored to its original condition. Digging without a permit, or leaving the surface unrestored, is a class one misdemeanor.
- City CodeVerified Oct 2026Gilbert Town Code 10-91 and 10-95, with 10-116 and 10-118How often must a Gilbert business test its backflow assembly, and who can test it?In Gilbert, an assembly is tested when installed and at least once a year after that, and again after any relocation or repair, at the owner's expense. A defective assembly must be repaired or replaced within 45 days or as the officer specifies. Only Town-approved testers may test, and ignored violations can bring fines and a water shutoff.
- City CodeVerified Sep 2026Gilbert Town Code 66-244(d)-(e) and 66-243(d)How often must a Gilbert restaurant pump its grease trap? Town Code 66-244(d) and (e)Gilbert requires the entire contents of a grease removal device to be pumped out at least every six months, and more often when needed to keep grease out of the sewer. The director can accept a longer interval if the owner shows it works. Emulsifiers are banned, and additives can never be the only maintenance.
- Permit FeeVerified Oct 2026Gilbert Town Code 10-342When do Gilbert businesses pay water, sewer and system development fees?Gilbert collects system development fees before it issues a building permit. With no building permit, they are due when the water service connection is bought, or before a sewer-only connection is approved. Nothing issues until they are paid, and a change of use or added floor area is charged on the added service units only.
- City CodeVerified Oct 2026Gilbert Town Code 66-234When does a Gilbert business have to pretreat its wastewater? Town Code 66-234Gilbert requires pretreatment when the director finds a permit applicant's waste must be lowered before it reaches the town sewer, when a business produces wastewater the article prohibits, or when a plant change raises the strength or volume of a permit holder's discharge. The plans go to the director for approval before construction starts.
Tempe
All 20 Tempe pages- PermitVerified Oct 2026Tempe City Code 8-111 (Tempe Administrative Code, Certificate of occupancy); Appendix A, Table 2-ACan a Tempe business open with a temporary certificate of occupancy? City Code 8-111Sometimes. Tempe City Code 8-111.3 lets the building official issue a temporary certificate of occupancy before all permitted work is finished, if that portion will be occupied safely. Each is limited to 30 days, a permit gets at most three, and Table 2-A lists $1,006 for the first 30 days or each extension.
- Local AmendmentVerified Oct 2026Tempe City Code 8-600, IPC 403.2, 410.2 and 410.4 as amendedDoes a small Tempe business need separate men's and women's restrooms? IPC 403.2Not always. Tempe's IPC 403.2 says separate toilet facilities for each sex are not required in a structure or tenant space with a total occupant load of 30 or fewer, employees and customers combined. Single-user rooms and all-gender rooms with privacy also avoid the split. Section 410.2 drops drinking fountains at the same 30.
- City CodeVerified Oct 2026Tempe City Code 27-171, When required (with 27-154 and 27-172)Does a Tempe business have to connect to the city sewer? City Code 27-171Yes, where the property can be served by the city sewer. Tempe City Code 27-171 makes owners and anyone leasing or using it connect privies, cesspools and open or unconnected drains at their own expense. A later-installed sewer gives one year, and septic tank systems must be filled in. Sewer rental is charged on unconnected property.
- PermitVerified Oct 2026Tempe City Code 27-32, 27-34, 27-37, 27-41 and 27-45 (wastewater discharge permits)Does a Tempe business need a wastewater discharge permit? City Code 27-32Tempe City Code 27-32 lets Public Works issue wastewater discharge permits to nondomestic users and require a notice of intent. A significant industrial user needs a Class I permit first, and others may be required to hold Class II, III or IV permits. A permit lasts up to five years and goes void if a transfer lacks 60 days' notice.
- PermitVerified Oct 2026Tempe City Code 8-105 (Tempe Administrative Code, Permits), with 8-110 and 33-141Does a Tempe tenant improvement need a plumbing permit? City Code 8-105Yes, in most cases. Tempe City Code 8-105.1 requires a permit before anyone alters, repairs or replaces a plumbing system or changes a space's use. The exemptions cover stopping leaks and clearing stoppages without replacing parts, and like-for-like water heater and softener swaps only in homes. Applications go through Tempe's online permit portal.
- City CodeVerified Oct 2026Tempe City Code 27-197, Reimbursement for remediation (with 27-32(c))How fast must a Tempe business clean up a sewer overflow? City Code 27-197Under Tempe City Code 27-197, a private sewer overflow, industrial waste release or chemical release that reaches or could reach the public right-of-way, or threatens public health, can draw a written order. The owner or the party using the property then has one hour to start remediation. Otherwise the city does it and bills time and materials plus 5 percent.
- City CodeVerified Oct 2026Tempe City Code 33-121 to 33-133 (Water waste: leaks, notices, surcharges)How long can a Tempe business leave a water leak unfixed? City Code 33-123Tempe City Code 33-123 prohibits letting water escape through breaks, leaks or malfunctions in a user's plumbing after the leak should reasonably have been discovered and corrected. A first violation gets a verbal notice. Repeat violations within 12 months bring a written notice, a water audit, billing surcharges and, after the fourth, shutoff.
- City ProgramVerified Sep 2026Tempe Backflow Prevention Program; City Code 33-107(e)Stolen or moved backflow assembly in Tempe: replacement and permitIf a Tempe backflow assembly is stolen, report the theft to Tempe Police, then replace it promptly with the same type of assembly. Replacing or relocating one needs a plumbing permit, and after any repair, overhaul or move the city inspects it and a certified tester retests it under City Code 33-107(e).
- City CodeVerified Sep 2026Tempe City Code 27-175Tempe City Code 27-175: who owns and repairs the sewer line, even under the street?Under Tempe City Code 27-175, the property owner owns and repairs the whole sewer line from the building to the city main, including the part in the city right of way, up to and including the tap and saddle on the main. The section, as amended in January 2026, has no exception for pipe under the street.
- City CodeVerified Sep 2026Tempe City Code 27-22, 27-15(c); IPC 416.3 and 1003 as amendedTempe City Code 27-22: grease traps, interceptors and the garbage disposal banTempe City Code 27-22 lets Public Works require every non-residential sewer user to install, clean and maintain grease traps and interceptors at its own expense, under city rules. A food service kitchen needs a trap or an interceptor, a commercial dishwasher means an interceptor, and commercial garbage disposals are barred.
- City CodeVerified Sep 2026Tempe City Code 33-103 and 33-104Tempe City Code 33-103 and 33-104: backflow assemblies on plans and how to install themIn Tempe, a required backflow assembly must be shown on the construction plans for new buildings, additions with new services and changes of use, and the city must approve it before the building permit is issued. Section 33-104 then sets where it goes, how big it is, and that a reduced pressure assembly stays above ground.
- City CodeVerified Sep 2026Tempe City Code 33-105Tempe City Code 33-105: which commercial properties need a backflow assembly?Tempe City Code 33-105 lists the premises that must have a backflow assembly on each water service connection: shopping centers, food processing, hospitals, car washes, laundries, tall buildings, booster pumps and about 35 more. Most get a reduced pressure assembly; a few low-hazard cases get a double check. Restaurants are not named in the table.
Queen Creek
- City ProgramVerified Sep 2026Queen Creek Utilities, Backflow InformationQueen Creek backflow testing: annual reports go through BSI Online, with a $14.95 filing feeQueen Creek tracks backflow assemblies through Backflow Solutions, Inc. (BSI). The tester files each annual test report on BSI Online and pays a $14.95 filing fee per report. Reports are rejected, and the customer is listed as non-compliant, if the tester's license or test kit calibration certificates are not current on file with BSI.
- PermitVerified Sep 2026Queen Creek Town Code 16-4-15 and 16-4-17, as quoted on the Building Safety permit pageQueen Creek Industrial Waste Survey: what Town Code 16-4-15 and 16-4-17 mean for a commercial building permitQueen Creek asks industrial users to complete an Industrial Waste Survey as part of the building permit. The Town ties this to Town Code 16-4-15, which bars discharges to the public sewer that can cause interference or health problems, and 16-4-17, which sets pretreatment requirements. The Town says to call 480-358-3003 to learn whether your project needs a permit.
City of Maricopa
- City ProgramVerified Oct 2026City of Maricopa Commercial Tenant Improvement Application Guide (Rev. 9/2025), General Submittal RequirementsDoes a City of Maricopa restaurant need Pinal County approval?Yes. The City of Maricopa's tenant improvement guide says all food service facilities require separate approval by Pinal County, with plan review and permitting through Pinal County Environmental Health in Florence. Fire sprinkler and fire alarm submittals need their own permits and approvals too, so a restaurant here has several approvals running alongside the city building permit.
- PermitVerified Oct 2026City of Maricopa Commercial Tenant Improvement Application Guide (Rev. 9/2025), Applicability and Plumbing Plans; Maricopa City Code 15.05.080When does a City of Maricopa tenant improvement need a permit, and what plumbing plans go with it?A tenant improvement permit is required when work alters or repairs a building, when plumbing, electrical or HVAC systems are altered or expanded, or when occupancy changes. Plumbing plans are required when water or sewer lines are altered or the system is expanded, and show fixtures, isometrics, load calculations, gas, interceptors, backflow devices and water heater expansion tanks.
Glendale
All 14 Glendale pages- PermitVerified Oct 2026Glendale Water Services Backflow Tester Policy (January 2025); City Code Sec. 33-91 and 33-93Do you need a permit to install or replace a backflow preventer in Glendale?Yes. Glendale requires a backflow installation permit for every new installation, retrofit and replacement of an existing assembly. You pull it at the Development Services Center, then call the permit line for an inspection after installation. The city does not accept test reports on a new or replaced assembly without the permit and inspection.
- PermitVerified Oct 2026Glendale Building Permits Q and A (Do I need a permit to...; How long is a permit good for?); Community Development Fee Schedule, Plumbing Permit and Expired PermitsDo you need a permit to replace a water heater in Glendale?Not if a licensed contractor installs it and the building is residential, per the city's own permit Q and A. That answer is silent on a homeowner swap and a commercial building. The same page says a permit is needed to install, replace or extend a gas pipe. A permit, if pulled, lapses after 180 days with no passed inspection.
- PermitVerified Oct 2026Glendale City Code Secs. 33-126, 33-127 and 33-129Glendale City Code 33-126 to 33-129: sewer tap permit and who digsIn Glendale, no one may uncover or connect to a public sewer without a written city permit, and a building connection also needs a valid city plumbing permit first. The owner pays for the building connection and exposes the main, but the city itself makes the tap. Right-of-way work needs additional permits and a specially licensed contractor.
- City CodeVerified Sep 2026Glendale City Code Sec. 33-217Glendale City Code 33-217: who repairs the sewer line from the building to the streetIn Glendale the property owner is responsible for cleaning, repairing and replacing the sewer connection to the public sewer line. The exception is any repair that needs excavation of a public street, alley or sidewalk: the city does that work at no cost to the owner. The owner still handles everything on private property.
- City CodeVerified Sep 2026Glendale City Code Sec. 33-238Glendale City Code 33-238: grease interceptors must be pumped every 180 daysGlendale requires every grease trap and grease, oil or sand interceptor to be pumped out or cleaned out completely at least once every 180 days, or more often if the city says so. The owner pays, keeps three years of written records at the facility, and cannot use enzymes as a substitute for pumping.
- City CodeVerified Sep 2026Glendale City Code Sec. 33-90Glendale City Code 33-90: which businesses need a backflow deviceGlendale City Code 33-90 lists 51 kinds of businesses and uses that must have a backflow device at the water service connection. Restaurants, bakeries, hotels, schools, hospitals, car washes, laundries, multi-family buildings and buildings over 34 feet need a reduced pressure (RP) assembly. Shopping centers and buildings with house pumps need a double check (DC).
- City CodeVerified Sep 2026Glendale City Code Sec. 33-92, 33-90(a)(22) to (24) and 33-96(b)Glendale City Code 33-92: backflow devices on fire sprinkler servicesGlendale requires a backflow device on a fire sprinkler service where Sec. 33-90 calls for one, installed at the service connection to the city's standard specification. If the city wants uninterrupted water during testing, two devices go in parallel. Modifying an existing fire-only service brings the whole system up to current rules.
- City CodeVerified Sep 2026Glendale City Code Sec. 33-94 and 33-96Glendale City Code 33-94: annual backflow test, records and shutoffGlendale requires every backflow device to be tested and serviced at least once a year by a tester the city certifies. If it fails, the customer repairs or replaces it. The customer keeps records on city forms and sends a copy to the city promptly. A missing, untested or bypassed device can lead to a water shutoff after two notices.
- PermitVerified Sep 2026Glendale City Code Sec. 33-99 and 33-91Glendale City Code 33-99: backflow devices must be on your building plansIn Glendale, every backflow device the project needs must be shown and specified on the required building and engineering plans, and the city must approve the intended installation before it issues any building or engineering permit. A plan set with the device missing can hold up the whole permit.
- City CodeVerified Oct 2026Glendale City Code Sec. 9-35 and 9-36; IPC 412.13 and Table 604.4 as amended by Sec. 9-21Glendale commercial restroom fixtures: City Code 9-35 flow limits, automatic faucets and the 1.6 gallon footnoteIn new commercial, industrial and public buildings, and when replacing fixtures in existing ones, Glendale allows only lavatory faucets that close automatically after one quart, 2.0 gpm shower heads, 1.28 gallon toilets and 0.5 gallon urinals with no timed flushing. A violation carries a civil penalty of up to $100, then up to $250 for a second or later one.
- PermitVerified Oct 2026City of Glendale Technical Guideline for Grouting Tub and Shower Boxes (issued 3/12/2018, revised 2021)Glendale policy: tub and shower boxes must be grouted before the inspectionGlendale's technical guideline sets city policy that tub and shower boxes are grouted before the inspector arrives: at the plumbing top out inspection on commercial projects, and at the frame stage inspection on residential projects. Arrive with the boxes ungrouted and expect the inspection to fail or be delayed.
- Permit FeeVerified Oct 2026Glendale City Code Sec. 33-18, 33-24, 33-53, 33-55 and 28-134; Development Impact Fee Schedule (rev. 06-24-2026)What does a new commercial water meter cost in Glendale, and when is it set?Glendale installs the water meter before the rough plumbing inspection, after you pay the meter fee in advance. Utility impact fees follow meter size and must be paid before the building permit. On the city's June 2026 schedule, a 1 inch meter carries $11,898 in East Glendale and $0 in West Glendale.
Peoria
- PermitVerified Oct 2026Peoria City Code Sec. 18-21, IBC 105.2 (Plumbing items 1 to 7), 105.3, 105.5 and 114.4.1 as amended; Fee Table 27-6Do you need a permit to replace a water heater in Peoria? Section 105.2 and the list of exempt plumbing workUsually not, if a licensed contractor replaces it in kind in a one- or two-family home. Peoria's amended IBC 105.2 lists that swap among seven plumbing jobs that need no permit, along with water softeners and stopping leaks. A homeowner swap, a larger building, a relocation or a different type is not on the list.
- City CodeVerified Oct 2026Peoria City Code Sec. 25-171 to 25-176 (Interceptors); IPC 704.1 as amended by Sec. 18-44Peoria City Code 25-171 to 25-176: grease interceptor rules, 90-day pumping and enzymesPeoria requires every grease trap and interceptor to be pumped out or cleaned out completely at least once every 90 days, or more often if the Director says so. The owner pays, keeps cleaning and repair records at the facility for three years, and cannot use enzymes or bacteria as a substitute for pumping.
Surprise
Surprise hub- PermitVerified Oct 2026Surprise Municipal Code Sec. 58-322Do you need an industrial waste discharge permit in Surprise?Yes, if you are an industrial user as Surprise Municipal Code defines it. Under 58-322 an industrial user must hold a city industrial waste discharge permit, get a new or amended one before starting any new industrial discharge, pretreat as needed, keep records and file quarterly self-monitoring reports. The city issues them for up to five years.
- City CodeVerified Oct 2026Surprise Municipal Code Sec. 58-260Does every Surprise commercial connection need a backflow device?Yes. Surprise Municipal Code 58-260(a) requires an approved backflow device on every commercial and industrial connection to the city's drinking water system. The city can also order one at other properties, and once it does the customer has 45 days to install it, test it and send the documentation, unless the city sets a shorter deadline.
- Permit FeeVerified Oct 2026Surprise Citywide Fee Schedule, Resolution 2026-16How much does the City of Surprise charge to install a water meter?The Surprise Citywide Fee Schedule (Resolution 2026-16, effective 5/19/2026) lists water meter installation per meter by size, from $422.70 for a 3/4 inch ultrasonic meter to $19,050.00 for 8 inch. It says the fee is the listed market cost, updated yearly on July 1st. Except single-family homes and duplexes, each user needs a separate irrigation meter.
- City CodeVerified Sep 2026Surprise Municipal Code Sec. 58-312(b)Surprise City Code 58-312(b): permits to repair a commercial sewer lateralUnder Surprise Municipal Code 58-312(b), a business or multifamily owner is responsible for the whole sewer lateral, from the building drain to the public sewer. If the repair needs off-property excavation, the contractor must get a city repair permit and a right-of-way encroachment permit before digging.
- City CodeVerified Sep 2026Surprise Municipal Code Sec. 58-315Surprise City Code 58-315: where a private sewer ends and the city's beginsUnder Surprise Municipal Code 58-315, a private sewer line stays private until it enters the manhole in the public right-of-way, and the city maintains that manhole and the public sewers. Private sewers need city approval and must sit in an exclusive sewer easement, not a general utility easement.
- PermitVerified Sep 2026Surprise Municipal Code Sec. 58-425 and Sec. 58-218Surprise City Code 58-425 and 58-218: permits to dig for sewer and water linesUnder Surprise Municipal Code 58-425 and 58-218, digging to lay sewer or water lines in public streets, right-of-way, alleys or city property requires a city construction permit first. Sewer digging without one is a class 1 misdemeanor. A city permit does not replace state or county approvals.
- City CodeVerified Oct 2026Surprise Municipal Code Sec. 58-259When must a backflow test report reach the City of Surprise?Under Surprise Municipal Code 58-259, initial and requested backflow test reports go to the city within 48 hours of the test, and annual recertification reports within ten working days of the renewal date. The tester must be ADEQ-recognized and on the city's approved list, and the city will not accept a failed report as complete.
Goodyear
Avondale
Avondale hub- City CodeVerified Oct 2026Avondale City Code 24-10 (testing, repairs, recordkeeping) and 24-11 (disconnection)Avondale City Code 24-10: annual backflow test, 7-day records and the 20-day shutoff clockAvondale City Code 24-10 requires each customer to have its backflow assemblies tested and serviced at least once a year by a certified tester, at the customer's expense. A failed assembly is repaired and retested until it passes, and a copy of each record goes to the city within seven days of the work.
- City CodeVerified Oct 2026Avondale City Code 24-104 (pretreatment of wastewater) and 24-105 (discharge permit and survey)Avondale City Code 24-104 and 24-105: grease interceptors, pretreatment plans and the discharge surveyAvondale City Code 24-104 lets the director require grease, oil, hair and sand interceptors wherever wastewater carries excessive fats, oil, grease or sand, but never for residential users. Under 24-105, every user applying to discharge into the sewer submits an industrial pretreatment survey, and larger or designated users need a discharge permit.
- City CodeVerified Oct 2026Avondale City Code 24-4 to 24-8 (backflow method, installation and fire sprinkler connections)Avondale City Code 24-6 and 24-7: which backflow assembly you need and where it goesAvondale's code has no list of business types that need backflow assemblies. Under City Code 24-6, the city decides the method from the activities on the premises: an air gap for hazardous activities, a reduced-pressure assembly on every domestic connection near the meter, and double check assemblies on water-only fire sprinkler lines.
Buckeye
- City CodeVerified Oct 2026Buckeye City Code 16-10-2(B), Control of Grease, Oil and Solids DischargesBuckeye City Code 16-10-2: grease interceptor size, upkeep and records for restaurantsBuckeye City Code 16-10-2(B) requires grease, oil and sand interceptors or traps where the water resources department finds them necessary, and never for private living quarters. Unless the director approves otherwise, an interceptor holds 750 to 2,500 gallons. The owner keeps it working at the owner's expense and keeps cleaning records on site for three years.
- City CodeVerified Oct 2026Buckeye City Code 17-4-3, Backflow PreventionBuckeye City Code 17-4-3: backflow assemblies, yearly tests, 10-day repairs and shutoffBuckeye City Code 17-4-3 requires backflow prevention at every service connection the city finds could be contaminated from inside the user's system, and fits every service connection except single-family homes with an assembly. Owners test each assembly yearly, repair failures within 10 days, and the city can end water service for a missing or failing assembly.
Tolleson
Tolleson hub- City CodeVerified Oct 2026Tolleson City Code 10-7-7Tolleson City Code 10-7-7: backflow testing and the 15-day noticeTolleson City Code 10-7-7 makes the user give the Building Department 15 days notice before each annual backflow test so a city representative can witness it. A city-approved certified tester tests at least yearly on the anniversary of the first inspection, and new or repaired assemblies are inspected before the certificate of occupancy.
- City CodeVerified Oct 2026Tolleson City Code 11-3-1When does Tolleson require pretreatment or a grease interceptor?Tolleson City Code 11-3-1 lets the Utilities Director require a pretreatment system for industrial flows, to restrict certain waste constituents, even out peak discharges or reach a required result. Every system needs plans signed by an Arizona-licensed engineer, and grease, oil and sand interceptors are required where the city finds them necessary.
- City CodeVerified Oct 2026Tolleson City Code 10-7-5Which Tolleson businesses need a backflow assembly?Tolleson City Code 10-7-5 lists the premises that need an approved backflow assembly as the minimum at every service connection, including food processing, laundries, car washes, medical and dental buildings, shopping centers and buildings over three stories or 34 feet. The table marks most of them reduced pressure (RP). Restaurants are not listed by name.
El Mirage
- City CodeVerified Oct 2026El Mirage City Code 50.128 (Prior Code 14-10-9)Does El Mirage require a permit to install a backflow assembly?Yes. El Mirage City Code 50.128 requires an installation permit from the Department before any required backflow assembly goes in, and a separate permit for each assembly, including a replacement. The code text states a $39 fee, but the next section says fees are set by Council resolution, and the FY26-27 fee schedule has no backflow line.
- City CodeVerified Oct 2026El Mirage City Code Sec. 50.066(B)El Mirage City Code 50.066: who installs water taps and service lines?Under El Mirage City Code 50.066(B), the developer or property owner, subject to city approval, installs new water connections: the tap on the main, the service line, valves and the meter box or vault. The owner also pays the city's associated fees before the city installs the meter. Commercial use needs its own meter and connection.
Litchfield Park
Litchfield Park hub- PermitVerified Oct 2026Litchfield Park City Code Sec. 7-16-1Litchfield Park City Code 7-16-1: right-of-way permit for plumbing work in the streetUnder Litchfield Park City Code 7-16-1, no one may construct, repair or alter anything in the public right-of-way without a permit from the Public Works director. The application needs the licensed contractor's name and license number, plans, and a traffic control plan. Plan review and inspection fees are paid before the permit is issued.
- City ProgramVerified Oct 2026City of Litchfield Park Building Safety, Building Permit Questions and Answers; City Code 7-18 and 7-19Litchfield Park commercial plumbing permit: when a business needs one, review times and feesYes. Litchfield Park requires a building permit to repair, remove, convert or replace any plumbing system, and a tenant space change also brings plan review, a certificate of occupancy and a business license. Commercial plumbing improvements are listed at 5 to 10 business days for review, and simple permits can be issued over the counter.
- City ProgramVerified Oct 2026City of Litchfield Park Building Safety, Water Heaters (Interactive Property Improvement Diagram); City Code 7-2-1; Citywide Fee Schedule FY2027Litchfield Park water heater permit: required for every replacement, $50 flat fee and the install checklistYes. Litchfield Park requires a permit for the installation or replacement of a water heater, with no like-for-like exception on its page. The Citywide Fee Schedule FY2027 lists a flat $50 for gas, electric or tankless units. The city also says to provide an expansion tank on all tank type water heaters.
Youngtown
Carefree
Maricopa County (unincorporated)
Maricopa County hub- PermitVerified Oct 2026Maricopa County Environmental Health Code, Ch. VIII, Sec. II, Reg. 2; Environmental Services Plan Review Construction Guide, Plan Review StepsDoes a restaurant remodel need Maricopa County plan approval, and what plumbing goes on the plans?Yes, for a new restaurant or a major alteration or addition. The county Environmental Health Code bars construction until detailed plans are submitted to and approved by Environmental Services. The plans need a plumbing schedule showing water heaters, overhead waste lines, floor drains and sinks, connections and backflow devices.
- City CodeVerified Oct 2026Maricopa County Local Additions & Addenda, Tab F (IBC) sections 105.5 and 114.4, applied to plumbing by Tab I; Planning and Development, Expired Permits pageHow long does a Maricopa County plumbing permit last, and what if you start before you have one?A county permit becomes invalid if work does not start within 180 days of issuance or stops for 180 days. The building official can extend it in writing; the county's Expired Permits page adds one free extension and a half-fee renewal. Starting plumbing work early adds a fee the code states as the permit fee doubled.
- City CodeVerified Oct 2026Maricopa County Plan Review Construction Guide, Hand Wash Sinks (MCEHC 8.1.8e) and Janitorial Stations, Service (Mop), Can Wash, Utility Sinks (IPC Table 403.1)How many hand sinks and mop sinks does a Maricopa County restaurant need, and where?Enough hand sinks that one is within approximately 25 feet of every workstation, prep and service area, bar, wait station, ice machine and ware washing area, with no door in the way. A splash guard is required within 24 inches of food contact or dish surfaces. A service (mop) sink is also required.
- City CodeVerified Oct 2026Maricopa County Plan Review Construction Guide, Indirect Waste Connections, Floor Drains, Overhead Sewer Lines, Manual Ware Washing (IPC 802.1, IPC 708.1, FC 3-305.14, FC 4-301.12)How must a Maricopa County restaurant drain its sinks, ice machines and walk-in coolers?Sinks, dish machines, ice machines and walk-in condensate lines drain indirectly through a 1-inch minimum air gap to a floor sink or drain, each on its own rigid line. Floor drains stay out of walk-in units except trough drains in processing rooms or produce and meat coolers with undercut or swing doors.
- City CodeVerified Sep 2026Maricopa County Zoning Ordinance Section 1205.7.6 (Drainage Regulations)Maricopa County Zoning 1205: Retention Basins and the 36-Hour RuleIn unincorporated Maricopa County, a commercial site must retain the 100-year, 2-hour storm falling on the whole site and empty it within 36 hours, under Zoning Ordinance Section 1205.7.6. Drywells must be ADEQ-registered, tested one by one, and cleaned by the owner at least every three years.
- City CodeVerified Oct 2026Maricopa County Plan Review Construction Guide, Potable Water Backflow Protection and Water Softeners and Reverse Osmosis (FC 5-203.15, IPC 608.16.4, 608.17.1.2, 609.4)What backflow protection does restaurant equipment need under Maricopa County plan review?It depends on the equipment. The county guide requires a reduced-pressure or other testable continuous-pressure device on carbonators, a testable high-hazard preventer such as an RPZ upstream of any reverse osmosis system, vacuum breakers on submerged inlets, and a device or air gap on all water-supplied equipment. Copper and brass stay out downstream of carbonator and RO.
- City ProgramVerified Oct 2026Maricopa County Plan Review Construction Guide, Grease Interceptors/Grease Traps; Local Additions & Addenda, Tab I (IPC) 1003.3; Environmental Health Code Ch. II Sec. VIIWho sizes a restaurant grease interceptor in Maricopa County: the county or the city?The city, not the county. The county's restaurant plan review guide says local municipalities determine the number and size of grease traps and interceptors, and tells owners on county land to contact the Water & Waste Division. In unincorporated areas, IPC 1003.3 is amended to add county Environmental Services requirements.
Pinal County (unincorporated)
- City ProgramVerified Oct 2026Pinal County Food Establishment Plan Review Packet, Contents and Format of Plans and Appendix A (Plan Submittal Checklist), Plumbing, Water Supply and Sewage DisposalWhat do Pinal County restaurant plans have to show for grease, backflow and drains?Pinal County plans must show each grease trap or interceptor with its type and size, easily accessible and outside the building. The Appendix A checklist also asks how often it is emptied, the backflow device on any equipment connected to the water supply, the indirect drainage method for each machine, and a waiver letter if there is no interceptor.
- PermitVerified Oct 2026Pinal County Environmental Health, Food Establishment Plan Review Packet (Plan Review Process Flow Chart; Contents and Format of Plans and Specifications)What plumbing details does Pinal County want in a restaurant plan review?Pinal County Environmental Health wants a plumbing schedule on every food establishment plan set, listing fixtures, sinks, floor drains and sinks, supply lines, overhead waste lines, water heating equipment with capacity and recovery rate, backflow devices and wastewater connections. Review runs within 30 business working days and approval expires one year after issuance.
Arizona
All 27 Arizona pages- State LawUpdated Jul 2026A.R.S. 32-1101: How Arizona Classifies Contractor LicensesA.R.S. 32-1101 is the definitions section of Arizona's contractor law. It sets three license classes: commercial contractor for non-residential work, residential contractor for work within residential property lines, and dual licensed contractor for both. The class controls what work a plumber may legally perform.
- State LawUpdated Jul 2026A.R.S. 32-1121: Arizona's Owner-Builder and Handyman Licensing ExemptionsA.R.S. 32-1121 exempts two groups from Arizona's contractor licensing law: homeowners who work on a house they own and occupy, and anyone doing casual work under $1,000 total. Both exemptions come with limits: permitted work and work meant for sale or rent generally fall outside them.
- State LawUpdated Jul 2026A.R.S. 32-1132: Arizona's Residential Contractors' Recovery FundA.R.S. 32-1132 funds a state pool that repays Arizona homeowners for actual losses caused by a licensed residential contractor, up to $30,000 per claim. To collect, a homeowner must first win a court judgment or Registrar of Contractors order that the contractor has not paid.
- State LawUpdated Jul 2026A.R.S. 32-1152: Arizona Contractor License BondsA.R.S. 32-1152 is the license-bond law. Before the Registrar of Contractors issues a license, the applicant must post a surety bond or a cash deposit. The amount is set by the registrar within a schedule, based on the contractor's classification and volume of work. A bond is separate from the Residential Contractors' Recovery Fund.
- State LawUpdated Jul 2026A.R.S. 32-1153: A Contractor Must Be Licensed to Sue for PaymentA.R.S. 32-1153 bars a contractor from suing you for payment on work that needs a license unless the contractor was duly licensed both when the contract was signed and when the claim arose. It is a strong consumer protection against unlicensed plumbers and other contractors.
- State LawUpdated Jul 2026A.R.S. 32-1154: Grounds to Suspend or Revoke a Contractor LicenseA.R.S. 32-1154 lists the acts and omissions that can get an Arizona contractor license suspended or revoked. The list includes abandoning a job, poor workmanship or code violations, fraud, false advertising, a felony conviction, and failing to pay for materials or services.
- State LawUpdated Jul 2026A.R.S. 32-1155: The Deadline to File an Arizona ROC ComplaintA.R.S. 32-1155 is the statute that lets you file a written complaint against a licensed Arizona contractor with the Registrar of Contractors. The complaint must be filed within the deadline set by A.R.S. 32-1162: generally two years from the close of escrow (new construction) or two years from project completion (other work).
- State LawUpdated Jul 2026A.R.S. 32-1158: What a Contractor's Written Contract Must IncludeA.R.S. 32-1158 sets what a contractor's written contract must include in Arizona. For any job over $1,000, the contract must list the contractor's name, address, and license number, the jobsite, the completion date, the total price, and deposit and payment terms. It must also carry a complaint-rights notice in at least ten-point bold type, signed by both parties.
- State LawUpdated Jul 2026A.R.S. 33-1002: Arizona's Lien Exemption for Owner-Occupied HomesA.R.S. 33-1002 shields an owner-occupied Arizona home from many construction liens. A contractor, subcontractor, or supplier generally cannot lien your home unless they signed a written contract directly with you. Any agreement that waives this protection is void. It is a lien statute, not the separate homestead equity exemption in A.R.S. 33-1101.
- State LawUpdated Jul 2026A.R.S. 33-1247: Who Maintains the Plumbing in an Arizona CondoA.R.S. 33-1247, part of Arizona's Condominium Act, sets the default split for upkeep: the association maintains the common elements, and each owner maintains their own unit. So plumbing inside a unit is usually the owner's, and shared plumbing in the common elements is the association's, unless the declaration says otherwise.
- State LawUpdated Jul 2026A.R.S. 33-1314.01: When an Arizona Landlord Can Bill You for WaterA.R.S. 33-1314.01 lets an Arizona landlord bill tenants for water through a submeter or a RUBS allocation formula, as long as the lease discloses the method and fee, the landlord adds no markup beyond actual cost plus a real administrative fee, and any mid-lease change gets 90 days' notice.
- State LawUpdated Jul 2026A.R.S. 33-1324: A Landlord's Duty to Maintain Plumbing and Supply WaterA.R.S. 33-1324 is the Arizona statute that requires a landlord to keep a rental fit and habitable. For plumbing, that means keeping the plumbing and sanitary facilities in good working order and supplying running water and reasonable amounts of hot water at all times.
Uniform Plumbing Code
All 41 UPC pages- Model CodeUpdated Jul 2026UPC 1003: Which Fixture Traps Are Allowed (and Banned)UPC Section 1003 describes which fixture traps are approved and which are banned. The standard P-trap is allowed. S-traps, bell traps, drum traps, and traps with moving or hidden parts are prohibited. Each fixture gets one approved trap, and double-trapping is not allowed.
- Model CodeUpdated Jul 2026UPC 1007: Trap Seal Protection for Floor DrainsUPC Section 1007 covers trap seal protection for floor drains. A seldom-used floor drain can dry out as its trap water evaporates, which lets sewer gas into the building. The fix is an automatic trap seal primer that adds water to the trap, or a barrier-type device. These must meet ASSE 1018, ASSE 1044, or ASSE 1072.
- Model CodeUpdated Jul 2026UPC 1208: Approved Fuel Gas Piping MaterialsUPC Section 1208 lists which materials are approved for fuel gas piping and how they may be joined. Steel and iron, copper where the gas allows, corrugated stainless steel tubing (CSST), aluminum alloy, and polyethylene (PE) for buried service each have their own limits and joining methods.
- Model CodeUpdated Jul 2026UPC 1210: Installing Fuel Gas PipingUPC Section 1210 sets how fuel gas piping is physically installed. It covers underground and concealed pipe, corrosion and impact protection, pipe turns, sediment traps, prohibited locations, and where each manual shutoff valve must sit.
- Model CodeUpdated Jul 2026UPC 1211-1212: Gas Appliance Connections and Shutoff ValvesUPC Sections 1211 and 1212 set how a gas appliance is joined to the house gas line. Each appliance needs an accessible manual shutoff valve close to it, an approved connector, and a sediment trap that keeps dirt out of the burner.
- Model CodeUpdated Jul 2026UPC 1213: Testing and Inspection of Fuel Gas PipingUPC Section 1213 makes new fuel gas piping prove it is leak-free before any gas flows. The plumber pressure-tests the line with air or another non-flammable gas, an inspector checks it, and the line is purged before appliances are connected.
- Model CodeUpdated Jul 2026UPC 1215: Sizing Fuel Gas PipingUPC Section 1215 sets how a plumber sizes fuel gas piping. The pipe has to be big enough to feed every appliance at the same time. The size is based on the total appliance demand in BTU per hour, the length of the run, and the type of gas.
- Model CodeUpdated Jul 2026UPC 422: How Many Plumbing Fixtures a Building Must HaveUPC Section 422 and Table 422.1 set the fewest plumbing fixtures a commercial building must have. The count runs off the occupant load and the occupancy group, so a busy restaurant needs more toilets, sinks, and drinking fountains per person than a quiet office. Separate facilities for each sex are generally required above a set occupant load.
- Model CodeUpdated Jul 2026UPC 506: Combustion Air for Gas Water HeatersUPC Section 506 sets how much fresh air a gas water heater's burner gets and where that air comes from. A small closet is a confined space and needs sized free-air openings, high and low, to outside or an adjacent room so the burner does not starve, soot, or backdraft.
- Model CodeUpdated Jul 2026UPC 510: Venting Gas Water Heaters (Category I Flues)UPC Section 510 sets how a natural-draft gas water heater's flue and vent are sized so the exhaust leaves the building instead of spilling back inside. Nearby sections control the draft hood, the vent connector, and how the heater shares a vent with another appliance.
- Model CodeUpdated Jul 2026UPC 606: Where Shutoff Valves Are RequiredUPC Section 606 sets where the water supply system needs valves. The main building supply needs a full-way valve so the whole structure can be shut off in one place. Each dwelling unit in a multi-unit building gets its own control valve. The section also covers valves for groups of fixtures, where a check valve is required, and a draindown valve.
- Model CodeUpdated Oct 2026UPC 609: Water Piping Installation and TestingUPC Section 609 covers potable water piping installation, support, protection and testing before concealment. The adopted code and pipe manufacturer determine the permitted test method; compressed-air testing is not a universal alternative. Never use compressed air or gas to test PVC pipe or fittings.
Need The Work Done To Code?
Call a licensed plumber to confirm permit requirements in your city and prepare the work for inspection.