I’m not using heavy machinery. Do I need to contact 811?

Yes! You must contact Kentucky 811 for all digging projects, such as installing mailboxes, fences or landscaping.

How far in advance should I contact Kentucky 811?

You must contact 811 two full working days, or more depending on the size and scope of the project, prior to excavation to give the member utilities enough time to mark the approximate location of their underground utilities and provide a positive response.. Working day means every day, except Saturday, Sunday, and holidays established by federal or state statute from 12:01 a.m. eastern time until 12 midnight eastern time, excluding the day the locate request was made.

Is there a fee to have utility lines marked on my job site?

No. Kentucky 811’s services are free.

How can i start using Exactix Pro?

You must complete a simple training on Exactix Pro to get started. More information is available on the Exactix Training Page.

How do I confirm the marks? What is Positive Response?

After waiting the required two full working days after submitting your locate request, check to ensure that all affected utilities have provided a positive response to your request:

  • If you have an Exactix Pro account, log in to see the status of your requests.
  • If you do not have an Exactix Pro account but want to see the status of a request, enter the ticket number and phone number using this tool.
  • Some Kentucky 811 members may contact you to offer updates on the marking status.
  • Visit the proposed dig site.
  • Call Kentucky 811 at 811 if you have any questions about utility response.

Do I need to notify 811 even if I am digging in an area that has previously been marked?

Yes, you need to submit a new ticket each time you want to dig. Factors like erosion and plant growth can alter the location of buried facility lines. It is also possible that utility companies have added new utility lines since a site was last marked.

My ticket is still valid, but I can no longer see the marks. Can I dig?

If the marks are no longer visible, you must request a re-mark and wait the required two full working days for response.


How do I know what the marks mean?

Refer to the Excavator Manual and the APWA Color Code Guide to interpret the colored paint or flags indicating the approximate location of buried utilities.

The member utilities have responded. Now, where should I dig?

Now that you’ve received a positive response that the member utilities’ facilities have been marked or are not in conflict, you can begin digging with care. Kentucky law defines the tolerance zone as a strip of land at least four (4) feet wide but not wider than the width of the underground facility plus two (2) feet on either side of the outer limits of the facility. When excavation or demolition is necessary within the tolerance zone, the excavator shall hand-dig or use non-intrusive means to avoid damage to the underground facility. 


I think I hit a utility line. What should I do?

Stop digging immediately. Step away from the area and call 911 if the damage results in the escape of flammable, toxic or corrosive gas or liquid, or if danger is present. After calling 911, notify the utility directly. Lastly, inform Kentucky 811 of the incident.

Does Exactix support tablets?

Yes. To set up your mobile device for Exactix, please see our Mobile Access Instructions.

I have private facilities on my property. What do I do?

Some underground utilities on your property will NOT be marked by Kentucky 811 Members because they are not owned by Kentucky 811 Members. Examples of private facilities include electric or water lines to your pool, lines to septic tanks, electric lines to sheds or landscape lighting, lawn sprinkler systems, invisible pet fencing, and more.

A good general rule of thumb is if the utility runs from the street to the meter, it will be marked. If the utility is installed from the meter to another location on your property, it will not be marked.

Since Member utilities are not responsible for marking private facilities, it is the property owner’s responsibility to contact a private locating company. Visit https://kentucky811.org/myutilities/ for more information regarding private facilities and companies that will locate them for you for a fee.

What is positive response?

“Positive Response” is when the utility provides communication of the status (“Marked,” “Clear,” etc.) of a locate request back to the excavator after they determine if their underground facilities are close to the excavation site – or not. “Through the One Call System” means the status is communicated to Kentucky 811 instead of directly to the excavator.

“Through the One Call System” has advantages to both the utility company and excavator. The benefits of a utility providing Positive Response to the One Call Center are:

  • A record of the response at the One Call Center. This is helpful when there are questions about a response, especially during a dispute.
  • Turning the Positive Response communication into a safety checklist at the excavation site. “Marked” with no corresponding color coded paint, flags or chalk can indicate that investigation is warranted before excavation begins.

Although Kentucky 811 law does not mandate Positive Response Through the One Call Center, it is supported by Kentucky 811 with Exactix.

How do I check positive response through the one call system?

  • To check Kentucky 811’s Positive Response system:
    • If you have an Exactix Pro account, log in to see the status of your requests from the Responses tab from within the ticket (see screenshot below).
    • If you do not have an Exactix Pro account but want to see the status of a request, enter the ticket number and phone number using this screenshot below).

  • Some members may not communicate with Kentucky 811 the status of the locate request, they may use their own system to offer updates on the marking status.
  • Call Kentucky 811 at 811, or 800-752-6007, if you have any questions about utility response.

What are the positive response codes used through the one call system?

Exactix supports the following response codes:

1 – Marked – Does conflict, underground facilities have been marked.

1A – Marked with Exceptions – High profile utility in conflict; utility owner will attempt to contact you to schedule site surveillance.

1B – Marked with Exceptions – High-priority subsurface installation in conflict. Excavator MUST notify the member of the excavation or demolition start date and time.

2 – Clear – No underground facilities are in the area where the excavation will take place.

3A – Unmarked – Locate technician could not gain access to property; call 811 to schedule access.

3B – Unmarked – Incorrect address information. Call 811 to verify the information on the ticket.

3C – Unmarked – Marking delay requested by locate technician and agreed to by excavator per agreement. Excavation site is unmarked. The locate technician cannot mark within two full working days. The excavator was contacted, and a new deadline was scheduled.

3D – Unmarked – Locate instructions are unclear. Call 811 to clarify where on the property you will be excavating and need the underground facilities located.

3E – Unmarked – The excavator has performed the excavation prior to the locator’s arrival.

3F – Unmarked – Line is “untonable” and utility has been notified to the resolve issue.

4 – Private Line – This is a private line and it is not the responsibility of the members of 811 to locate private facilities.