Safety Commission Findings
Safety Commission Findings: Colorado 811 Annual Report
Pursuant to Colorado law, Colorado 811 is required to submit to the Underground Damage Prevention Safety Commission a report annually on July 1 which summarizes the data from the prior calendar year regarding locate requests and renotifications for each owner or operator.
The Safety Commission has analyzed the data from 2018 - 2024 for two different peer groups (based on 2024 locate request totals):
- 81 companies with 10,000 - 100,000 locate requests per year
- 14 companies with over 100,000 locate requests per year
The Safety Commission’s aggregate findings from the Colorado 811 annual reports are in the tables below.
10,000 - 100,000 Locate Requests
10,000 - 100,000 Locate Requests | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
# of Facility Owners | 85 | 77 | 74 | 73 | 73 | 78 | 81 |
Total Locate Requests | 2,297,633 | 1,925,918 | 2,085,967 | 1,962,590 | 1,914,446 | 2,030,922 | 2,059,612 |
Mean # of Locate Requests | 27,031 | 25,012 | 28,189 | 26,885 | 26,225 | 26,037 | 25,427 |
Notices (EXRNS) | 11,775 | 25,258 | 26,490 | 15,055 | 19,187 | 23,171 | 20,143 |
| Mean # of (EXRNS) | 139 | 328 | 358 | 206 | 263 | 297 | 249 |
% of Locate Requests resulting in Notices | 0.51% | 1.31% | 1.27% | 0.77% | 1.00% | 1.14% | 0.98% |
Mean # of % of Locate Requests resulting in Notices | 0.50% | 1.00% | 1.01% | 0.71% | 0.86% | 0.99% | 0.76% |
# of Automatic Positive Response Renotifications | Not Available | Not Available | 66,469 | 56,022 | 175,098 | 136,806 | 63,734 |
Mean # of APPRNs | Not Available | Not Available | 898 | 767 | 2,399 | 1,754 | 787 |
APRRN % of Locate Requests resulting in Renotifications (Late) | Not Available | Not Available | 3.19% | 2.85% | 9.15% | 6.74% | 3.09% |
Mean # of % of Locate Requests resulting in Renotifications (Late) | Not Available | Not Available | 2.70% | 2.56% | 2.74% | 2.51% | 1.57% |
>100,000 Locate Requests
>100,000 Locate Requests | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
# of Facility Owners | 11 | 10 | 9 | 10 | 11 | 13 | 14 |
Total Locate Requests | 3,786,356 | 3,473,778 | 3,606,664 | 3,743,255 | 3,865,860 | 4,356,237 | 4,320,404 |
Mean # of Locate Requests | 344,214 | 347,378 | 400,740 | 374,326 | 351,442 | 335,095 | 308,600 |
Notices (EXRNS) | 55,781 | 52,735 | 52,312 | 37,931 | 66,341 | 161,387 | 111,814 |
Mean # of (EXRNS) | 5,071 | 5,274 | 5,812 | 3,793 | 6,031 | 12,414 | 7,987 |
% of Locate Requests resulting in Notices | 1.47% | 1.52% | 1.45% | 1.01% | 1.72% | 3.70% | 2.59% |
Mean # of % of Locate Requests resulting in Notices | 1.09% | 1.50% | 1.42% | 0.99% | 1.49% | 2.06% | 1.63% |
# of Automatic Positive Response Renotifications | Not Available | Not Available | 190,156 | 121,149 | 736,171 | 462,253 | 155,634 |
Mean # of APPRNs | Not Available | Not Available | 21,128 | 12,115 | 66,925 | 35,558 | 11,117 |
APRRN % of Locate Requests resulting in Renotifications (Late) | Not Available | Not Available | 5.27% | 3.24% | 19.04% | 10.61% | 3.60% |
Mean # of % of Locate Requests resulting in Renotifications (Late) | Not Available | Not Available | 4.84% | 3.89% | 5.52% | 3.29% | 2.08% |