[Photos of viruses and sample preparation]The analytical methods promulgated
under Clean Water Act Section 304(h) are sometimes referred to as the "304(h)"
or "Part 136" methods. The methods measure chemical and biological pollutants
in media, such as wastewater, ambient water, sediment, and biosolids (sewage
sludge). These various CWA methods are tested in a variety of labs and matrices.
Related Information
* Questions and Answers about Approved Methods
(https://www.ecfr.gov/cgi-bin/text-idx?SID=a6bb8a02b6d783f9356758b5ff0ed106&mc=true&node=pt40.25.136&rgn=div5#se40.25.136_13)
In addition to Part 136
(https://www.ecfr.gov/cgi-bin/text-idx?SID=a6bb8a02b6d783f9356758b5ff0ed106&mc=true&node=pt40.25.136&rgn=div5)
methods, some approved industry-specific methods are published or incorporated
by reference at 40 CFR Parts 401 through 503.
On This Page:
* Approved methods listed by method number
* Approved methods listed by analyte (reference tables in 40 CFR 136.3)
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Approved Methods Listed By Method Number
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* Wastewater & Sewage Sludge
* Ambient Water
Microbiological Pollutants In Wastewater and Sewage Sludges
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Download the publications
(https://www.epa.gov/cwa-methods/approved-cwa-microbiological-methods-wastewater-and-sewage-sludge)
NUMBER
METHOD TITLE
1600Enterococci in Water by Membrane Filtration Using membrane-Enterococcus
Indoxyl--D-Glucoside Agar (mEI)1603_Escherichia coli (E. coli)_ in Water by
Membrane Filtration Using Modified membrane-Thermotolerant Escherichia coli
Agar (Modified mTEC)1680Fecal Coliforms in Sewage Sludge (Biosolids) by
Multiple-Tube Fermentation using Lauryl Tryptose Broth (LTB) and EC
Medium1681Fecal Coliforms in Sewage Sludge (Biosolids) by Multiple-Tube
Fermentation using A-1 medium1682_Salmonella_ in Sewage Sludge (Biosolids) by
Modified Semisolid Rappaport- Vassiliadis (MSRV) Medium
* Regulatory History:
* Approval of Analytical Methods for Biological Pollutants in
Wastewater and Sewage Sludge; Final Rule
(https://www.federalregister.gov/documents/2007/03/26/07-1455/guidelines-establishing-test-procedures-for-the-analysis-of-pollutants-analytical-methods-for)
(March 26, 2007)
Microbiological Pollutants In Ambient Water
------------------------------------------------------------
Download the publications (https://www.ecfr.gov/cgi-bin/ECFR?page=browse)
NUMBER
METHOD TITLE
1103.1_Escherichia coli (E. coli)_ in Water by Membrane Filtration Using
membrane-Thermotolerant Escherichia coli Agar (mTEC)1106.1Enterococci in Water
by Membrane Filtration Using membrane- Enterococcus-Esculin Iron Agar
(mE-EIA)1600Enterococci in Water by Membrane Filtration Using
membrane-Enterococcus Indoxyl--D-Glucoside Agar (mEI)1603_Escherichia coli (E.
coli)_ in Water by Membrane Filtration Using Modified membrane-Thermotolerant
Escherichia coli Agar (Modified mTEC)1604Total Coliforms and _Escherichia coli_
in Water by Membrane Filtration Using a Simultaneous Detection Technique (MI
Medium)1622_Cryptosporidium_ in Water by Filtration/Immunomagnetic
Separation/Immunofluorescence Assay Microscopy1623_Cryptosporidium_ and
_Giardia_ in Water by Filtration/IMS/FA
* Regulatory History:
* Approval of Analytical Methods for Ambient Recreational Waters; Final
Rule
(https://www.federalregister.gov/documents/2003/07/21/03-18155/guidelines-establishing-test-procedures-for-the-analysis-of-pollutants-analytical-methods-for)
(July 21, 2003)
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Approved Methods Listed By Analyte
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The lists of approved methods at 40 CFR 136.3, with footnotes, are provided
here as a reference. To download specific method publications, refer to the
tables above.
* Lists of methods by analyte; from 40 CFR 136.3
[https://www.ecfr.gov/cgi-bin/text-idx?SID=a6bb8a02b6d783f9356758b5ff0ed106&mc=true&node=pt40.25.136&rgn=div5#se40.25.136_13]
* Table IA: Biological Methods for Wastewater and Sewage Sludge
* Table IH: Microbiological Methods for Ambient Water
happy to work with the nazis though. aside from [orange part]
[http://www.patsins.com/staying-healthy/walking-your-steps-to-health]
When the water in our rivers, lakes, and oceans becomes polluted; it can
endanger wildlife, make our drinking water unsafe, and threaten the waters
where we swim and fish. EPA research supports efforts under the Clean Water Act
and Safe Drinking Water Act.
When the water in our rivers, lakes, and oceans becomes polluted; it can
endanger wildlife, make our drinking water unsafe, and threaten the waters
where we swim and fish. EPA research supports efforts under the Clean Water Act
and Safe Drinking Water Act.
Drinking Water
------------------------------------------------------------
* Local Water Quality Reports [https://www.epa.gov/ccr]
* Drinking Water Basics
[https://www.epa.gov/ground-water-and-drinking-water]
* Lead in Drinking Water
[/https://www.epa.gov/ground-water-and-drinking-water/basic-information-about-lead-drinking-water]
[SM] [http://ww1.patsins.com/water-quality-standards]
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