PhaseOne
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Built for Phase I ESA teams

Evidence first.
Judgment stays human.

PhaseOne turns fragmented records, site findings and historical research into a traceable Phase I workflow—without blurring the line between an AI draft and an Environmental Professional’s decision.

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Exact-source provenance RLS organization boundaries Immutable approved versions

P1-2026-0142 · Review

Riverside Works

1840 River Street · synthetic preview

82%

Complete

04

Evidence

01

EP decision

AI proposalEP review required

Former process annex conditions support review of a potential REC. The classification is not final.

2 evidence citations · generator record + 1965 aerial
Draft block · preview-findings-v1SHA / traced

One accountable chain

From property identity to signed release.

The workflow keeps research speed, evidentiary support and professional accountability in the same system.

01

Scope the property

Capture property identity, parcels, parties, target date and ASTM-aligned scope in one intake record.

02

Build the evidence ledger

Request, upload and extract sources while preserving provider, vintage, geography and exact source location.

03

Draft with visible support

Generate factual blocks that point back to evidence and surface missing inputs instead of inventing certainty.

04

Decide, approve, release

An Environmental Professional accepts, edits or rejects proposals before a signed version becomes immutable.

Every fact has an address

Provider, source type, vintage, requested geography, checksum, page or record locator and review state stay attached.

Roles are server-enforced

Organization membership and RLS policies protect reads and mutations. Viewer, editor, reviewer and admin boundaries are testable.

Release is a deliberate gate

Professional decisions, approval statements, signer credentials and artifact checksums precede an immutable released version.

Professional boundary

The model proposes. The EP decides.

Generated content remains visibly draft, cites its supporting evidence and can be accepted, edited or rejected with attributable professional rationale.

Review the control model
PhaseOne

Evidence-linked Phase I environmental due diligence, with professional judgment clearly separated from generated draft work.

Public preview · synthetic records only

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