Know What’s Below Before You Design.

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Damage prevention and safety begin in the project-design phase. Knowing the location of underground facilities enables designers to plan projects more efficiently — and helps prevent dangerous and costly utility strikes when work on the project begins.

Arizona 811 provides the ability to create Design Requests through its free, online Exactix tool. Using Exactix, designers can:

Identify the specific facility owners/operators that would be impacted by the location of a future project

Contact each of them directly to find out how they will respond to the Design Request.

If you’re a designer who’d like to sign up for free Exactix training to process Design Requests

Arizona 811 Engineering Label for prints and plans is available in JPG, PDF and DXF formats

What Arizona Law Says

“Information contained in installation records relating to the nature and location of underground facilities, but not the installation records themselves, shall be made available on a confidential basis within ten working days from a written request to persons who are engaged in the design of construction projects involving excavation in a public street, alley, right of way dedicated to the public use, or public utility easement, in any express or implied private property utility easement, or in an apartment community or mobile home park. The underground facilities operator shall make the same information available to authorized persons who are complying with a requirement imposed by contract providing for construction projects involving excavation in a public street, alley or right of way dedicated to the public use or public utility easement, in any express or implied private property utility easement, in any apartment community or mobile home park or by operation of law.

The only lawful use of the information that is obtainable pursuant to this subsection is to minimize delays of construction projects. The underground facilities operator may indicate any portions of the information that are proprietary and require the authorized person to protect proprietary matters. The underground facilities operator may satisfy the requirements of this subsection by allowing an authorized person to inspect or copy the installation records required by this section, without charge, or may provide the information in another manner for a reasonable fee. The underground facilities operator is not liable to any person for damages arising from any person’s inspection of or reliance on the installation records that are made available for the purpose of complying with this subsection.”

Design Request

Arizona 811 provides the ability for authorized individuals or companies involved in the design phase of a project to create a Design Request using Exactix. This type of request can help to identify the specific list of underground facility owners/operators that could be impacted by the location of a future project and determine where underground facilities are buried while planning is under way. Underground facility owners/operators are not required by law to mark the location of their facilities in response to a Design Request, but they can opt to provide helpful location information.


A : The law is A.R.S. 40-360.21-31, and requires anyone who is excavating on public or private property for any reason to determine, in advance, “whether underground facilities will be encountered, and if so where they are located from each and every underground facilities operator and taking measures for control of the facilities in a careful and prudent manner.”
A : Yes. Underground facility operators could have utilities buried on your private property, so they must be located and marked to prevent serious injuries and damage. In addition, Arizona law requires anyone who digs for any reason to have underground utilities located before digging begins.

A : Although Arizona 811 processes your request to have utilities marked, Arizona 811 does not provide utility marking services; rather, the underground facility operators who have utilities buried at your dig site will send qualified personnel – called Locators – to your dig site to identify and mark the facilities they own and operate. By law, each facility operators’ Locators must respond to your request within two full working days, excluding weekends and state holidays.
A : NO. If you have not received responses from 100-percent of the underground facility operators listed on your ticket, call 811 to process a priority request. It is not safe or legal to dig if you do not have received responses from all the affected utilities at your dig site.
A : The paint you see in the street near your dig site is called an “offset marking.” When a locator marks a non-permanent surface, such as grass or dirt, he or she can also put an offset marking on the nearest permanent surface (such as a sidewalk, street or driveway) to indicate the distance (in feet) and direction of the underground utility from your dig site. This further protects you from injury, and utilities from damage, in case the marks at the dig site are damaged or destroyed. For example, if you water or mow your front lawn, the paint will be destroyed; but, having the offset marking nearby ensures that you still know the location of the buried facility in the area where you plan to dig.
A : We hope this never happens! If it does, stop digging. Call 911 if necessary; striking an electric or gas line can result in serious or even fatal injuries, fire and catastrophic explosions. In the event of a gas line strike, evacuate up wind and call 911 from a safe area where there are no gas vapors. No matter what type of utility it is, you are also required to call the owner or operator of the utility. Telephone numbers are listed under Emergency Contacts on this web site. Call 811 to document the incident and if you have questions about the location of the marks at your dig site. Never allow any utility strike go unreported, even if the damage seems very minor. Over time, even minor damage can compromise the integrity of the line, cable or pipe and lead to a serious problem later. Also, never try to repair the damage yourself.
A : No, it is correct. Your ticket provides the names of every facility owner/operator that has utilities buried at your planned dig site, even if you do not receive services from all of them. It’s important to remember that hundreds of miles of underground facilities have been installed across Arizona during the past several decades. In many cases utility lines and pipelines were installed long before existing homes and businesses were constructed. It’s not uncommon to see the names of utility companies you don’t purchases services from, or utility types you don’t even use, listed on your ticket. You might even see two of the same type of utility – such as two different cable TV or electricity providers – even though you do business with only one of them. Regardless, be sure that 100 percent of the utilities listed on your ticket have responded before you begin to dig!
A : There is no difference under Arizona law. In fact, Arizona law defines excavating as any operation in which earth, rock, or other material in the ground is moved, removed or otherwise displaced by means or use of any tools, equipment or explosives and includes, without limitation, grading, trenching, digging, ditching, drilling, auguring, boring, tunneling, scraping, cable or pipe plowing and driving.
A : Yes. Effective January 1, 2007, and pursuant to A.R.S. 40-360-32: Every landlord shall file with a one-call notification center (Arizona 811) the property name, property address, contact name and/or job title, contact fax number (if available), contact mailing address, contact email address (if available), contact telephone number and hours of contact, which must be at least 30 hours per week.
– To download the form to use for registration with Arizona 811, please click here.
– There are additional Landlord requirements under A.R.S. 40-360. Please click here for entire text of law.
A : By law, you are required to notify the landlord in advance by certified mail. Effective January 1, 2007, and pursuant to A.R.S. 40-360.22: For all excavations in an apartment community or mobile home park, the excavator shall inform the landlord as promptly as practical that the excavator intends to submit an inquiry to the landlord that will trigger the landlord’s obligation provided by section B of this section and the inquiry itself shall be made by certified mail to the landlord, using a form prepared by a one-call notification center.
– To download the form to notify landlords registered with Arizona 811 about your plans to dig, please click here.
– There are additional excavator requirements related to landlord notification and response. Please click here for the entire text of the law.
A : Utility markings are valid for 15 working days, excluding weekends and state holidays. If your ticket expires and you continue to dig, you are in violation of state law. Updating your ticket keeps you in compliance with the law so you don’t risk being cited and fined. The easiest way to remember to update your ticket is to call 811 three weeks from the date you created your original ticket, and continue calling every three weeks for the duration of your project. It’s also important to note that your markings must remain visible and valid. If the markings at your dig site disappear or are destroyed for any reason, you must update your ticket immediately.
A : Yes, you can meet with the Locators at the excavation site. This request is processed as a “Meet Ticket” and is simply a request to meet on site with the Locators at an appointed time. The Locators are not required to mark at this time, so be sure to contact Arizona 811 to request a “Routine Ticket” after the meeting. The facility owners/operators then have two full working days, excluding weekends and state holidays, to mark their facilities.
A : Do not dig. Instead, be sure to process a follow-up transaction on your ticket by 1) calling 811 or 2) by using the “Edit” function in E-Stake and selecting the appropriate description for your situation (“Ready to dig, but one or more facility owner/operator(s) failed to respond.”). You can also process a similar transaction if you received a response from one or more facility owner/operator(s) by telephone, email or electronically posted in E-Stake, which you did not agree to or did not understand (“Ready to dig, but have questions on marks appearing on my job site or on other responses received.”).


Please specify in the “Remarks” section which facility owner/operator(s) are impacted and the details of the issue (Did they not respond at all? Were their marks incomplete? Do you not understand their marks? Did you receive a voice mail message, email or other notice that you did not agree to or understand?).


When you are ready to submit this transaction, have the Arizona 811 Locate Specialist select (if by phone) or you can select (if by E-Stake) only the facility owner/operator(s) that are impacted. This transaction will be treated as a priority and will be sent to the impacted facility owner/operator(s) immediately.


It is important to process this follow-up transaction to document the situation in addition to any other verbal or written communication you have with the facility owner/operator(s) to ensure proper documentation of the situation is recorded on your ticket. For assistance, contact Call Center Operations Manager Brad Simon at (602) 659-7501 or

A : The depth of buried facilities is never guaranteed, and no indication of depth can be given or indicated. Ongoing changes to the surface of the earth, naturally or otherwise, continually change the depth of the buried facilities. For example, it’s possible for a facility that was originally installed several feet underground to be only a few feet – or inches – beneath the surface because of erosion, grading or other factors. For this reason, always use caution when digging!
A : The uniform color code designates specific colors for specific utility types, as well as proposed excavation sites and temporary survey marks:

  • White = Proposed excavation site
  • Pink = Temporary survey
  • Red = Electric power
  • Yellow = Gas, oil product lines (includes natural and liquid gases)
  • Orange = Communications, cable TV, fiber optics
  • Blue = Water, slurry
  • Purple = Reclaimed water
  • Green = Sanitary sewer system, storm drain


Proposed Excavation

Electric Power

Communication / Cable TV

Reclaimed Water

Temporary Survey

Gas, Oil Product Lines

Water Systems, Slurry

Sanitary Sewer System

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