1999 Errata Document
Variability Guidance (June, 2000)
NPDES Permit Rule (Aug., 1999)
TRE Guidance (Aug, 1999)
Method Changes (Sept., 2001)
Certification Guidance (Mar., 2001)
has issued several important documents to clarify the implementation and
interpretation of WET tests.
The Agency intends to issue more new guidance
in the coming months. As each document is released, it will be available
for download here.