Which laboratories can be used for the testing?
Please refer to our website for a list of ZDHC Approved Wastewater Laboratories for testing in accordance with the ZDHC Wastewater Guidelines: link.
How can I become a ZDHC Approved Wastewater Laboratory for the purpose of testing wastewater?
If you want to be registered as a ZDHC Approved Wastewater Laboratory, please find more guidance on this here.