Contains modified Copernicus Sentinel data 2017, 2025
00 / Public context
The scale of the public record.
These are context figures for the two practice areas, taken directly from federal sources.
They describe the problems the practice works on. They are not Heimdall performance metrics.
Environmental review
2.4 years
Median time from notice of intent to final environmental impact statement, 2021–2024.
The record of a single federal review is split across the Federal Register, the EPA
EIS database, agency sites, and court dockets. Answering how long comparable reviews
took, or which of them were challenged, means days of manual searching and figures
nobody can trace back.
What we do
Build cited comparables and timelines from that public record, so schedule and
litigation questions get answers a reviewer can check against the source.
For
Project sponsors and consultants planning schedules, counsel weighing litigation risk, and permitting researchers.
Where the record of one federal review is published
Stage
Where it is published
Notice of intent
Federal Register
Draft and final EIS
EPA EIS Database
Record of decision
Lead agency record
Litigation
Federal court opinions
B
Geospatial and remote sensing
The problem
State inventories list more than a hundred thousand documented orphaned wells, many
recorded decades ago with imprecise locations. Field crews cannot visit every site,
and imagery on its own does not say which surface feature belongs to which record.
What we do
Monitor documented sites with multi-year satellite imagery and report surface change
alongside the public record for each site.
For
State plugging programs, oil and gas regulators, land managers, and environmental researchers.
2017-08-27
2025-09-02
Weld County, Colorado · 40.34°N 104.56°W. Brackets mark structures present in 2025 and absent in 2017.
Contains modified Copernicus Sentinel data 2017, 2025.
02 / Selected work
Work built on the public record.
Case 01
Comparables for federal environmental review
Cited comparables and review timelines drawn from the public record of federal environmental review.
Case 02
Change detection over documented orphaned wells
Multi-year satellite change detection at documented orphaned well sites, checked against public records.
03 / Services
Scoped engineering, cited delivery.
01
Public-records analytics
Structured, cited datasets built from federal and state public records.
02
Remote-sensing pipelines
Satellite change detection over documented sites, delivered for review.
03
Cited figures
Every number tied to a public source that a reviewer can reopen.
04
Reviewable increments
Work ships in scoped increments with written assumptions and provenance.
Engagements start with a written scope. Every figure is cited to its source.
04 / Sources
Public sources the practice works from.
Council on Environmental Quality
EPA EIS Database
Federal Register
Federal court opinions
Agency project records
U.S. Geological Survey
Copernicus Sentinel-2
USDA NAIP
State oil and gas commissions
05 / About
An independent engineering practice in New Mexico.
Heimdall Research is the public research and practice name of Heimdall Labs, LLC. It works
with public records, satellite data, and the organizations that rely on them.
Research collaborations, datasets, and scoped engagements
