Chains of Custody


Below is a list of the chains of custody available for your download.  Most sampling is done using the first Chain of Custody in the list.  However, if you are sampling for Drinking Water, please download the appropriate form for the State your water system is in and the type of analyses you need.  If you are not sure which form to use please call us at 1-800-943-2839 or email

Click here for video instruction on filling out a chain of custody form.

For your convenience, some of the forms below have fillable fields (shown in green).  This will enable you to fill out the fields on your computer, then print two (2) copies and bring them in with your samples.  All forms are in pdf format and can be printed for your convenience.  Please feel free to contact us with any questions.


General Chains of Custody COC – General
COC – General Drinking Water
Private Well Analysis (Bacteria-IOC Form) COC – Private Well
Compost / Clopyralid COC – Clopyralid


Idaho Coliform Bacteria Analysis ID – Bacteria
Idaho/Montana Lead & Copper ID – PbCu
Idaho/Montana LT2 Form ID – LT2


Washington IOC/VOC/SOC WA – Drinking Water
Washington Coliform Bacteria Analysis WA – Bacteria
Washington Lead & Copper WA – PbCu
Washington Fluoride WA – Fluoride


Montana Drinking Water MT – Drinking Water
Montana Lead & Copper (same as ID) ID – PbCu


Oregon Drinking Water OR – Drinking Water


Methamphetamine Analysis COC – Meth