Chain of Custody
The Chain of Custody (COC) is used to document information about the sample(s) such as identification/name, time/date of collection, parameter requests and the legal transfer of sample custody. COCs are included with every bottle order we provide. A print version of our Chain of Custody is available below.
If you would like to receive an interactive version of our COC, please email customerservice@easternanalytical.com.
Quick Resources
Holding Times & Preservation Card
Get our convenient holding times and preservation reference card.
Short Hold Time Parameters Chart
Chain of Custody Forms
Download one of our chain of custody forms.
Residential Drinking Water Information
Get our homeowner drinking water guide and residential chain of custody form.