Analytical Method Source

Chlorophyll Methods

• Applicability of Chlorophyll a Methods (DEP/SAS/002/10)

SW-846 Methods

Test Methods for Evaluating Solid Waste, Physical/Chemical Methods 

• https://www.epa.gov/hw-sw846

40 CFR Part 136.3 Methods List

• Full list of approved methods at 40 CFR Part 136.3
• Download method files at https://www.epa.gov/measurements/collection-methods#2

EPA Method Update Rules

• Federal Register, 5/19/21
• Federal Register, 4/16/24 (Note: 2023 MUR not yet incorporated in Department Wastewater Rule.)

40 CFR Parts 141 & 143 Methods

National Primary Drinking Water Regulations

• 40 CFR Part 141

National Secondary Drinking Water Regulations

• 40 CFR Part 143

Clean Water Act (CWA) Analytical Methods for testing water

•  https://www.epa.gov/cwa-methods 

National Environmental Methods Index (NEMI)
Use this link to search all chemical, microbiological, biological, toxicity, and physical methods in NEMI

• https://www.nemi.gov/home/

US Geological Survey (USGS) Methods for testing (Field and Lab)

• https://water.usgs.gov/owq/methods.html

APHA Standard Methods
Standard Methods for the Examination of Water and Wastewater methods list

• http://www.standardmethods.org

ASTM Methods (American Society of Testing Materials)

• https://www.astm.org/Standard/standards-and-publications.html

AOAC Methods
Official Methods of Analysis text by the Association of Analytical Communities

• http://www.aoac.org/News/oma_rev_3.htm
• http://www.eoma.aoac.org/

Petroleum Methods

• FL-PRO 2018

**The DEP FL-PRO method was revised as of November 2018. Please visit the FL-PRO Revision page where you can read a summary of the changes included in the revised method.**

Un-ionized Ammonia SOP - Discussion of the calculation of this species