Environmental Engineering Technician how-to
How to Track Field Samples on a Chain of Custody Record
Chain of custody makes sample results legally defensible.
Quick answer
Chain of custody makes sample results legally defensible. In short: list; record; note, then complete the remaining steps below.
Step by step
List each sample ID, date and time collected.
Record the analyses requested.
Note preservatives and container counts.
Sign and date when relinquishing samples.
Get the receiver’s signature.
Keep a copy.
Safety reminders for environmental engineering technicians
- Complete HAZWOPER training before hazardous site work
- Wear PPE and monitor air where contaminants are present
- Follow traffic and heavy equipment safety on sites
- Use proper lifting for equipment and coolers
Key terms
Monitoring well · Purging · Chain of custody · Remediation · Soil vapor extraction · Groundwater: see the full environmental engineering technician glossary.