The following are general support documents for the Clean Water Act analytical methods program that are not analyte-specific.
You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.
-
Stability of Pharmaceuticals, Personal Care Products, Steroids, and Hormones in Aqueous Samples, POTW Effluents, and Biosolids (PDF)(43 pp, 371 K,
September 2010,
820-R-10-008)
Also known as "Holding Time Study"
-
Quality Assurance and Quality Control Requirements in Methods Not Published by EPA; Memorandum (PDF)(3 pp, 281 K,
May 7, 2009)
This memorandum addresses problems encountered in conducting analyses, or auditing laboratory practices when the QA/QC requirements are sufficient, but published in other parts of an organization's compendium rather than within the Part 136 method; or QA/QC instructions in a Part 136 method are insufficient.
-
Solutions to Analytical Chemistry Problems with Clean Water Act Methods (PDF)(65 pp, 1 MB,
March 2007,
821-R-07-002)
Also known as the "Pumpkin Book"
-
Method Guidance and Recommendations for Whole Effluent Toxicity (WET) Testing (PDF)(60 pp, 252 K,
July 2000,
821-B-00-004)
Guidance and recommendations on the conduct of the approved WET test methods and interpretation of WET test results reported under the NPDES program