ENV-2026-04444

FlaggedEnvironmental

Stormwater Outfall 003

Route for review Add to report

84Integrity

Findings

Critical

Cleared

Method: EPA 6020B — Metals by ICP-MS
Instrument: Agilent 8890 GC
Analyst: M. Delgado
Sample ID: ENV-S87175
Batch: B-2225
Source: manual_entry
Collected: Jun 13, 2026
Scanned: Jun 25, 2026

ALCOA+ findings (1)

Confidence97%Fieldreported_value AI-assisted · human sign-off required

Why flagged

A reported value was edited after it had moved to an approved state, and no change reason was captured. Silent edits to original data break the chain of custody.

Source evidence

Value changed 18.4 → 12.1 µg/L; no entry in change_reason; edit timestamp post-dates approval.

Suggested remediation

Revert to the original instrument value or attach a signed change-control note documenting the reason, prior value, and authorizing reviewer.

Reviewer decision

Awaiting a reviewer. No decision recorded yet.

Record history

Imported from manual_entry

Jun 13, 2026, 02:20 PM

ALCOA+ integrity scan completed

Jun 25, 2026, 02:20 PM

Result modified after approval without reason flagged (critical)

Jun 25, 2026, 02:20 PM