Northern Ontario Industrial Facility Expansion - Phase 2 — Claim Workbench

Folder: C:\Users\danaf\Downloads\_tmp_workbench_evidence

Total Artifacts

XER Updates

Emails (.msg)

Documents

Workbooks

Images

Unclassified

Run date

2026-05-03

Contract

CCDC2

Schedule Chain Summary

XER Updates

Manipulations Detected

High-Severity (WARN+BLOCK)

2025-03-03

First Data Date

2026-03-02

Last Data Date

Manipulations by Category

Category	Count
activity_added	1
baseline_retroactive_edit	1
duration_changed	8
taskpred_added	1

Schedule Manipulation Log

Update	Severity	Category	Activity / Edge	Narrative
1	INFO	duration_changed	A1020	Duration of A1020 changed 240.0h → 304.0h
1	INFO	duration_changed	A1030	Duration of A1030 changed 160.0h → 192.0h
2	INFO	duration_changed	A2010	Duration of A2010 changed 200.0h → 248.0h
3	INFO	duration_changed	A2020	Duration of A2020 changed 360.0h → 456.0h
3	WARN	baseline_retroactive_edit	A2020	Baseline target dates EDITED on in-progress activity A2020 (had actuals)
3	INFO	duration_changed	A3010	Duration of A3010 changed 480.0h → 536.0h
4	INFO	activity_added	A6020-CO12	Activity A6020-CO12 introduced in update 4
4	INFO	duration_changed	A4020	Duration of A4020 changed 160.0h → 200.0h
4	INFO	duration_changed	A6010	Duration of A6010 changed 480.0h → 600.0h
4	INFO	duration_changed	A4010	Duration of A4010 changed 320.0h → 400.0h
4	INFO	taskpred_added	16	TASKPRED added: pred=13 → succ=16 (PR_FS)

Rolling-Baseline Insertions

Rolling baseline written to C:\Users\danaf\Downloads\_tmp_workbench_v1\Northern_Ontario_Industrial_Facility_Expansion___Phase_2_Rolling_Baseline.xer. Preserved 15 original baseline activities. Inserted 1 new activities introduced mid-chain (per Dana's rolling-baseline rule, with as-introduced planned dates).

Preserved (Original Baseline)

Inserted (As-Introduced)

Task Code	Name	First Appeared	Planned Start	Planned Finish	Duration (hr)
A6020-CO12	CO-12 Process Equipment Skids 1 & 2 (Owner Change)	2026-03-02	2027-04-21	2027-05-04	80

Output XER: Northern_Ontario_Industrial_Facility_Expansion___Phase_2_Rolling_Baseline.xer

Evidence Ledger

17 total entries · range 2025-05-12 → 2026-05-03 · 0 undated.

docx: 4 pdf: 8 xer: 5

ID	Date	Class	Filename	Subject / Title	Codes	People	Orgs	RFI/CO
E-001	2025-05-12	pdf	RFI-014-Subgrade-Contamination-Spec.pdf	RFI-014-Subgrade-Contamination-Spec.pdf	RFI-014; A1020	—	—	1
E-002	2025-05-15	pdf	Owner-Letter-2025-05-15-Subgrade.pdf	Owner-Letter-2025-05-15-Subgrade.pdf	A1020	—	3	1
E-003	2025-05-28	pdf	RFI-014-Response.pdf	RFI-014-Response.pdf	RFI-014; A1020	—	1	1
E-004	2025-05-30	pdf	Contractor-Letter-2025-05-30-Notice-of-Delay.pdf	Contractor-Letter-2025-05-30-Notice-of-Delay.pdf	CCDC2; A1020	—	3	1
E-005	2025-08-08	docx	PCO-007-Mat-Thickness-Change.docx	PCO-007-Mat-Thickness-Change.docx	PCO-007; A2020	1	—	—
E-006	2025-08-12	docx	2025-08-12-Project-Coord-Meeting.docx	2025-08-12-Project-Coord-Meeting.docx	PCO-007; A2020; A2010	—	3	—
E-007	2025-09-22	pdf	RFI-041-Steel-Weld-Spec-Clarification.pdf	RFI-041-Steel-Weld-Spec-Clarification.pdf	RFI-041; A3010	—	1	1
E-008	2025-09-29	pdf	RFI-041-Response.pdf	RFI-041-Response.pdf	RFI-041; A3010	—	1	1
E-009	2025-09-30	pdf	Contractor-Letter-2025-09-30-RFI-041-Notice.pdf	Contractor-Letter-2025-09-30-RFI-041-Notice.pdf	RFI-041; CCDC2; A3010	—	3	1
E-010	2026-02-15	docx	CO-012-Process-Equipment-Skids.docx	CO-012-Process-Equipment-Skids.docx	CO-012; A6010; A6020; CO12; CCDC2	—	2	2
E-011	2026-02-20	pdf	Contractor-Letter-2026-02-20-CO-012-Notice.pdf	Contractor-Letter-2026-02-20-CO-012-Notice.pdf	CO-012; CCDC2; A6010	—	3	1
E-012	2026-02-25	docx	2026-02-25-Project-Coord-Meeting.docx	2026-02-25-Project-Coord-Meeting.docx	CO-012; A6010; A4020; A4010	—	1	1
E-013	2026-05-03	xer	NOIFE_Phase2_Baseline_2025-03-03.xer	NOIFE_Phase2_Baseline_2025-03-03.xer		—	—	—
E-014	2026-05-03	xer	NOIFE_Phase2_Update_2025-06-02.xer	NOIFE_Phase2_Update_2025-06-02.xer		—	—	—
E-015	2026-05-03	xer	NOIFE_Phase2_Update_2025-08-04.xer	NOIFE_Phase2_Update_2025-08-04.xer		—	1	—
E-016	2026-05-03	xer	NOIFE_Phase2_Update_2025-11-03.xer	NOIFE_Phase2_Update_2025-11-03.xer		—	—	—
E-017	2026-05-03	xer	NOIFE_Phase2_Update_2026-03-02.xer	NOIFE_Phase2_Update_2026-03-02.xer		—	—	—

Entity Summary (NER tier: `spacy_lg+regex` · spaCy model: `en_core_web_lg`)

Corpus totals: 1 distinct people · 13 organizations · 2 RFI numbers · 2 change-order numbers. Reference: ASCE J. Legal Affairs & Dispute Resolution, Vol 17 No 4 (2025) — NLP for Construction Claims.

Top Actors

Sorted by distinct-evidence-count first (forensic signal), raw mention-count second (transparency-only — biased by repetitive content like long emails or threaded replies).

Name	Role	Evidence Items	Mentions (raw)
RFI	ORG	5	5
Meridian Construction Group Ltd.	ORG	4	4
CCDC2 Article	ORG	2	2
Lakeshore Holdings Ltd.	ORG	2	2
CCDC2	ORG	1	1
CCDC2 Article 6.5	ORG	1	1
Contractor-Letter-2026-02-20-CO-012-Notice.pdf Letter	ORG	1	1
Mat Foundations Pour	PERSON	1	1
NOIFE_Phase2_Update_2025-08-04.xer	ORG	1	1
Owner-Letter-2025-05-15-Subgrade.pdf Letter	ORG	1	1
Process Equipment Install	ORG	1	1
Project Counsel	ORG	1	1
Structural Steel Erection	ORG	1	1
TPO	ORG	1	1

RFI Mentions

RFI	Evidence Count
014	4
041	3

Change-Order Mentions

CO	Evidence Count
012	3
12	1

Slip ↔ Evidence Pairings

Slips Analyzed

Evidence Items Paired

100.0%

Pairing Rate

12.0

Avg Evidence / Slip

Slip ID	Activity	Slip	Window	Evidence	Filename	Match Confidence	Actors Involved
0:A6010	A6010	95d	2025-03-03 → 2026-03-02	E-010 docx	CO-012-Process-Equipment-Skids.docx	both (1.00)	[ORG] RFI (in 5 evid., 5 mentions) · [ORG] Meridian Construction Group Ltd. (in 4 evid., 4 mentions) · [ORG] CCDC2 Article (in 2 evid., 2 mentions) +10
				E-011 pdf	Contractor-Letter-2026-02-20-CO-012-Notice.pdf	both (1.00)
				E-012 docx	2026-02-25-Project-Coord-Meeting.docx	both (1.00)
… 9 more evidence item(s) for slip 0:A6010 (see full pairings export)
0:A7010	A7010	95d	2025-03-03 → 2026-03-02	E-001 pdf	RFI-014-Subgrade-Contamination-Spec.pdf	date_within_window (0.50)	[ORG] RFI (in 5 evid., 5 mentions) · [ORG] Meridian Construction Group Ltd. (in 4 evid., 4 mentions) · [ORG] CCDC2 Article (in 2 evid., 2 mentions) +10
				E-002 pdf	Owner-Letter-2025-05-15-Subgrade.pdf	date_within_window (0.50)
				E-003 pdf	RFI-014-Response.pdf	date_within_window (0.50)
… 9 more evidence item(s) for slip 0:A7010 (see full pairings export)
0:M-FIN	M-FIN	93d	2025-03-03 → 2026-03-02	E-001 pdf	RFI-014-Subgrade-Contamination-Spec.pdf	date_within_window (0.50)	[ORG] RFI (in 5 evid., 5 mentions) · [ORG] Meridian Construction Group Ltd. (in 4 evid., 4 mentions) · [ORG] CCDC2 Article (in 2 evid., 2 mentions) +10
				E-002 pdf	Owner-Letter-2025-05-15-Subgrade.pdf	date_within_window (0.50)
				E-003 pdf	RFI-014-Response.pdf	date_within_window (0.50)
… 9 more evidence item(s) for slip 0:M-FIN (see full pairings export)
0:A4020	A4020	74d	2025-03-03 → 2026-03-02	E-012 docx	2026-02-25-Project-Coord-Meeting.docx	both (1.00)	[ORG] RFI (in 5 evid., 5 mentions) · [ORG] Meridian Construction Group Ltd. (in 4 evid., 4 mentions) · [ORG] CCDC2 Article (in 2 evid., 2 mentions) +10
				E-001 pdf	RFI-014-Subgrade-Contamination-Spec.pdf	date_within_window (0.50)
				E-002 pdf	Owner-Letter-2025-05-15-Subgrade.pdf	date_within_window (0.50)
… 9 more evidence item(s) for slip 0:A4020 (see full pairings export)
0:A5010	A5010	74d	2025-03-03 → 2026-03-02	E-001 pdf	RFI-014-Subgrade-Contamination-Spec.pdf	date_within_window (0.50)	[ORG] RFI (in 5 evid., 5 mentions) · [ORG] Meridian Construction Group Ltd. (in 4 evid., 4 mentions) · [ORG] CCDC2 Article (in 2 evid., 2 mentions) +10
				E-002 pdf	Owner-Letter-2025-05-15-Subgrade.pdf	date_within_window (0.50)
				E-003 pdf	RFI-014-Response.pdf	date_within_window (0.50)
… 9 more evidence item(s) for slip 0:A5010 (see full pairings export)
0:A5020	A5020	74d	2025-03-03 → 2026-03-02	E-001 pdf	RFI-014-Subgrade-Contamination-Spec.pdf	date_within_window (0.50)	[ORG] RFI (in 5 evid., 5 mentions) · [ORG] Meridian Construction Group Ltd. (in 4 evid., 4 mentions) · [ORG] CCDC2 Article (in 2 evid., 2 mentions) +10
				E-002 pdf	Owner-Letter-2025-05-15-Subgrade.pdf	date_within_window (0.50)
				E-003 pdf	RFI-014-Response.pdf	date_within_window (0.50)
… 9 more evidence item(s) for slip 0:A5020 (see full pairings export)
0:A4010	A4010	67d	2025-03-03 → 2026-03-02	E-012 docx	2026-02-25-Project-Coord-Meeting.docx	both (1.00)	[ORG] RFI (in 5 evid., 5 mentions) · [ORG] Meridian Construction Group Ltd. (in 4 evid., 4 mentions) · [ORG] CCDC2 Article (in 2 evid., 2 mentions) +10
				E-001 pdf	RFI-014-Subgrade-Contamination-Spec.pdf	date_within_window (0.50)
				E-002 pdf	Owner-Letter-2025-05-15-Subgrade.pdf	date_within_window (0.50)
… 9 more evidence item(s) for slip 0:A4010 (see full pairings export)
0:A3010	A3010	53d	2025-03-03 → 2026-03-02	E-007 pdf	RFI-041-Steel-Weld-Spec-Clarification.pdf	both (1.00)	[ORG] RFI (in 5 evid., 5 mentions) · [ORG] Meridian Construction Group Ltd. (in 4 evid., 4 mentions) · [ORG] CCDC2 Article (in 2 evid., 2 mentions) +10
				E-008 pdf	RFI-041-Response.pdf	both (1.00)
				E-009 pdf	Contractor-Letter-2025-09-30-RFI-041-Notice.pdf	both (1.00)
… 9 more evidence item(s) for slip 0:A3010 (see full pairings export)
0:A3020	A3020	53d	2025-03-03 → 2026-03-02	E-001 pdf	RFI-014-Subgrade-Contamination-Spec.pdf	date_within_window (0.50)	[ORG] RFI (in 5 evid., 5 mentions) · [ORG] Meridian Construction Group Ltd. (in 4 evid., 4 mentions) · [ORG] CCDC2 Article (in 2 evid., 2 mentions) +10
				E-002 pdf	Owner-Letter-2025-05-15-Subgrade.pdf	date_within_window (0.50)
				E-003 pdf	RFI-014-Response.pdf	date_within_window (0.50)
… 9 more evidence item(s) for slip 0:A3020 (see full pairings export)
0:A2020	A2020	42d	2025-03-03 → 2026-03-02	E-005 docx	PCO-007-Mat-Thickness-Change.docx	both (1.00)	[ORG] RFI (in 5 evid., 5 mentions) · [ORG] Meridian Construction Group Ltd. (in 4 evid., 4 mentions) · [ORG] CCDC2 Article (in 2 evid., 2 mentions) +10
				E-006 docx	2025-08-12-Project-Coord-Meeting.docx	both (1.00)
				E-001 pdf	RFI-014-Subgrade-Contamination-Spec.pdf	date_within_window (0.50)
… 9 more evidence item(s) for slip 0:A2020 (see full pairings export)
0:A2030	A2030	42d	2025-03-03 → 2026-03-02	E-001 pdf	RFI-014-Subgrade-Contamination-Spec.pdf	date_within_window (0.50)	[ORG] RFI (in 5 evid., 5 mentions) · [ORG] Meridian Construction Group Ltd. (in 4 evid., 4 mentions) · [ORG] CCDC2 Article (in 2 evid., 2 mentions) +10
				E-002 pdf	Owner-Letter-2025-05-15-Subgrade.pdf	date_within_window (0.50)
				E-003 pdf	RFI-014-Response.pdf	date_within_window (0.50)
… 9 more evidence item(s) for slip 0:A2030 (see full pairings export)
0:A2010	A2010	26d	2025-03-03 → 2026-03-02	E-006 docx	2025-08-12-Project-Coord-Meeting.docx	both (1.00)	[ORG] RFI (in 5 evid., 5 mentions) · [ORG] Meridian Construction Group Ltd. (in 4 evid., 4 mentions) · [ORG] CCDC2 Article (in 2 evid., 2 mentions) +10
				E-001 pdf	RFI-014-Subgrade-Contamination-Spec.pdf	date_within_window (0.50)
				E-002 pdf	Owner-Letter-2025-05-15-Subgrade.pdf	date_within_window (0.50)
… 9 more evidence item(s) for slip 0:A2010 (see full pairings export)
0:A1030	A1030	18d	2025-03-03 → 2026-03-02	E-001 pdf	RFI-014-Subgrade-Contamination-Spec.pdf	date_within_window (0.50)	[ORG] RFI (in 5 evid., 5 mentions) · [ORG] Meridian Construction Group Ltd. (in 4 evid., 4 mentions) · [ORG] CCDC2 Article (in 2 evid., 2 mentions) +10
				E-002 pdf	Owner-Letter-2025-05-15-Subgrade.pdf	date_within_window (0.50)
				E-003 pdf	RFI-014-Response.pdf	date_within_window (0.50)
… 9 more evidence item(s) for slip 0:A1030 (see full pairings export)
0:A1020	A1020	12d	2025-03-03 → 2026-03-02	E-001 pdf	RFI-014-Subgrade-Contamination-Spec.pdf	both (1.00)	[ORG] RFI (in 5 evid., 5 mentions) · [ORG] Meridian Construction Group Ltd. (in 4 evid., 4 mentions) · [ORG] CCDC2 Article (in 2 evid., 2 mentions) +10
				E-002 pdf	Owner-Letter-2025-05-15-Subgrade.pdf	both (1.00)
				E-003 pdf	RFI-014-Response.pdf	both (1.00)
… 9 more evidence item(s) for slip 0:A1020 (see full pairings export)

Recurring Actors

Names appearing across 3 or more distinct slip pairings. Threshold (3+) is a CPP heuristic for surfacing names that appear frequently in the corpus; AACE 29R-03 and SCL Protocol do not publish a numeric cutoff for "recurring actor" significance. Use as an investigative starting point, not a legal characterization or affiliation finding.

Name	Role	Slips	Distinct Evidence	Total Mentions	Party Correlation
RFI	ORG	14	70	70	Unknown (no domain match)
Meridian Construction Group Ltd.	ORG	14	56	56	Unknown (no domain match)
CCDC2 Article	ORG	14	28	28	Unknown (no domain match)
Lakeshore Holdings Ltd.	ORG	14	28	28	Unknown (no domain match)
CCDC2	ORG	14	14	14	Unknown (no domain match)
CCDC2 Article 6.5	ORG	14	14	14	Unknown (no domain match)
Contractor-Letter-2026-02-20-CO-012-Notice.pdf Letter	ORG	14	14	14	Unknown (no domain match)
Mat Foundations Pour	PERSON	14	14	14	Unknown (no domain match)
Owner-Letter-2025-05-15-Subgrade.pdf Letter	ORG	14	14	14	Unknown (no domain match)
Process Equipment Install	ORG	14	14	14	Unknown (no domain match)

Showing top 10 of 13 recurring actors.

Party correlation methodology. "Owner-corr 80%" means the actor was named in evidence where 80% of senders fell under the analyst-supplied Owner-domain mapping. This is a CORRELATION signal (who appears in whose correspondence) — NOT an affiliation claim. An Owner employee can be named in Contractor letters; a Contractor PM is often quoted in Owner emails. The 60% threshold for surfacing the tag (below which the column reads "mixed") is a CPP heuristic to filter noise — not a published forensic standard. "Unknown (no domain match)" indicates the analyst supplied a mapping but the senders did not match any entry; "—" indicates no mapping was supplied at all. Signal quality depends entirely on mapping completeness; verify the domain mapping covers all known parties before relying on any correlation result.

Trust Flags Detail

INFO retroactive_baseline_edits_present

1 retroactive baseline edit(s) detected — instances where the target dates of an activity changed in an update without the corresponding contractual change order or accepted recovery plan. The baseline against which performance is measured should not drift mid-project without contractual basis; silent drift moves the performance reference point and obscures schedule variance. Severity tiers (>10 BLOCK, 4-10 WARN, 1-3 INFO) are CPP heuristics; neither AACE 29R-03 nor SCL Protocol publishes a numeric cutoff for tolerable retroactive-edit count. The flag indicates a CORRELATION worth verifying, not a finding of intentional baseline drift.

Re-run downstream variance analysis against the original frozen baseline rather than the as-submitted edited baseline. For each edit, request the change-order or float-allocation documentation that would justify the modification; absent such documentation, flag the edit for analyst follow-up review.