Chain of Custody Forms

A completed chain of custody form must be submitted with all samples to the laboratory prior to analysis beginning. 

Drinking Water Chain of Custody

Subcontracting Chain of Custody 

Customized chain of custody forms are available upon request.  

If you have not already registered with Aquatic and Environmental Laboratory, please fill in and submit the registration form.

Courier Service

Courier Service is available to Aquatic and Environmental Depot Locations.  Please contact the laboratory directly at 705-722-5227 or to find out locations and frequency of service.  There will be an Aquatic and Environmental labelled cooler at each location for you to place your samples. Samples need to be dropped off no later than 10:30 am on the day of pick-up.


Tuesday -  Alliston, Bradford, Stayner, Flesherton, Melancthon

Wednesday - Gravenhurst, Bradcebridge, Huntsville, Midland, Seguin, Parry Sound, Port Severn

Please remember that these locations have kindly provided Aquatic and Environmental Laboratory with floor space for a cooler.  It would be greatly appreciated if office staff were not disturbed.  Please contact the laboratory directly with any questions about dropping off samples and courier service.  Please refer to the Depot Guidelines for further information.

Collection and Handling

Please use this guide as a quick reference to assist you in the collection, handling, and transportation of your drinking water samples.  

Sample Collection and Handling Guide

To view the Ministry of Environment, Conservation and Parks  (MECP) collection guidelines – Practices for the Collection and Handling of Drinking Water Samples, please visit:

Transport sample(s) to Aquatic and Environmental Laboratory Inc. as soon as possible after collection.

  • Keep sample(s) cool, but not frozen, during transportation.  Ideal storage is less than 10 degrees Celsius
  • Do not pack sample(s) with loose ice as this may cause contamination.  Package sample(s) with a frozen ice pack or labelled frozen water bottle
  • Complete chain of custody form and enclose it in waterproof packaging (e.g. sealable plastic bag) to ensure it is not ruined by melting ice or condensation