The chain of custody portion of the collection cards should be filled out as described:
If the person collecting the water sample will personally transport the sample to the Post Office (or another delivery service)
The collector should sign and date the first line labeled "Relinquished By" and then write Post Office (or another delivery service) on the "Received By" line
Delivery services maintain their own tracking information so they do not need to sign the Chain of Custody form
If the person collecting the water sample will not personally transport the sample to the Post Office (or another delivery service)
The collector should sign and date the first line labeled "Relinquished By"
The person they give the sample to should sign and date on the "Received By" line
This procedure should be repeated until the sample is given to the Post Office