Positive Response is mandated under Colorado State law, to be provided by the underground facility owner to the excavator requesting the locate request. The facility owner is required to post a Positive Response through the Colorado 811 Positive Response System. If the Tier One facility owner has not published to the Colorado 811 system within the expected time-frame, a “Positive Response Re-notification” will be automatically generated at 11:59 p.m. on the locate by date, and every subsequent day until a response is posted.
An excavator must process an “Excavator Re-notification” (Formerly known as a 2nd Notice) if there is no response from the facility owner beyond the due date.
Please note that Tier Two members cannot post a response until they have fully converted to Tier One membership.
Colorado 811 agents do not have a direct link to provide positive response information for any locate request. please refer to this program only through www.colorado811.org, or call the facility owner directly.
PLEASE DO NOT MAKE CALLS TO 8-1-1 FOR POSITIVE RESPONSE INFORMATION
Facility Owners and Operators
Excavators and Residents
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