Solutions · Site closure & reclamation certificates
Close sites on the evidence. Get certified sooner.
A defensible path to remediation and reclamation certificates: the full site history, every sample screened against the right guideline, natural background separated from impact, and closure reports cited to the page.
Closure stalls on what nobody can find in the file.
Most of the evidence a closure needs already exists. It's spread across decades of reports, lab certificates and correspondence from consultants who have moved on.
- Years of extra sampling by default. When the history is unclear, the safe recommendation is to sample again, often for years.
- Generic guidelines overstate risk. Tier 1 values don't know your soil, your groundwater use or your natural background, so they can call for excavation the site doesn't need.
- Reports go stale. Every new monitoring round means rewriting sections by hand and hoping nothing was missed.
Everything a closure needs, built from the site's own record.
Full history and APECs
A dated timeline of every event, and every area of potential environmental concern found in your reports and drawn on the map.
Site history →Guideline screening
Every sample screened against the guideline that applies to its depth, media and land use, with exceedances flagged by location.
Guideline screening →Tier 2 guidelines
Site-specific Alberta Tier 2 values recalculated as you set pathway exclusions and site conditions.
Background versus impact
Chemical fingerprints, such as salinity profiles, that show which results are natural background and which are a release.
Forensics →Volumes
Contaminated soil volumes calculated layer by layer from the interpolated plume, so excavation estimates come from the data.
3D mapping →Cited closure reports
Exceedance tables, standard figures and report text that update when new monitoring data arrives, every change cited.
Site Facts →See it on the closure work itself.
Screen every sample against the right guideline.
Soil and groundwater results are matched to the guideline for their depth and media, so the exceedance picture reflects how the site is actually built, not one generic table.
Set site conditions and see Tier 2 values change.
Exclude pathways that don't apply, such as a groundwater use that isn't present, and the site-specific guideline values update immediately, with the reasons recorded.
Show what is natural background.
Group samples by their salt fingerprint and trace each group to its source. Where the site's chemistry matches natural background, that evidence can support adjusting the guidelines applied to the closure.
Keep the closure report current.
When a new monitoring report arrives, Statvis updates the affected facts and redrafts only the sentences that depend on them, each change cited and marked for review.
How closure works in Alberta.
Closing an upstream energy site in Alberta usually means showing that soil and groundwater meet the Alberta Tier 1 or Tier 2 Soil and Groundwater Remediation Guidelines, that the land meets the applicable reclamation criteria, and then applying to the regulator for a reclamation certificate. Where only part of a site was remediated, a remediation certificate can cover that area.
Statvis supports the evidence behind a closure. It doesn't replace the regulator's review, a qualified professional's sign-off or legal advice, and it can't guarantee an outcome.
Case study · Sour gas plant closure · a midstream operator
The answer was already in the file. It saved about $2.6 million.
A sour gas plant closure was headed for years of additional sampling. Salinity fingerprinting across the site's own historical record showed naturally occurring background, which supported adjusting the guidelines applied to the closure.
74%
less excavation: 4,500 m³ instead of 17,000 m³
<12
weeks to an approved closure plan, instead of years
Related
Take control of your contaminated sites.
Bring us one site's documents. We'll show you what's in them.