BSK Associates
  • SERVICES
    • Environmental Analysis
    • Environmental Consulting
    • Geotechnical
    • Special Inspection
    • Materials Testing
    • Geophysical 
  • MARKETS
    • Agricultural
    • Commercial & Industrial
    • Education
    • Government
    • Healthcare
    • Energy
    • Transportation
    • Water Resources
    • Solid Waste
  • ABOUT
    • Executive & Board
    • Senior Leadership
  • CAREERS
  • CONTACT
  • CLIENT CONNECT
  • Menu Menu
Method 1633 PFAS Testing BSK Associates

EPA Method 1633 and How It Can Help You with Your PFAS Testing Needs.

September 3, 2025/in Uncategorized/by bskassociates

What is EPA Method 1633?

EPA Method 1633 is a draft method developed by the US Environmental Protection Agency (EPA) to measure 40 different types of PFAS in various environmental matrices, such as water, soil, biosolids, and tissue. The method uses liquid chromatography-tandem mass spectrometry (LC-MS/MS) to separate and detect the PFAS compounds in the samples. The method covers nine compound classes of PFAS, including linear and branched isomers. It also provides guidance on sample collection, preservation, extraction, cleanup, and quality control.

EPA Method 1633 is still in the draft stage and has not been finalized or approved for regulatory use. However, it is expected to provide a standardized and comprehensive approach for measuring PFAS in various environmental matrices. The method is also intended to complement other existing or proposed methods for PFAS analysis, such as EPA Method 537.1 for drinking water.

How Does EPA Method 1633 Differ from EPA Method 537.1?

EPA Method 537.1 is the current method for PFAS testing in drinking water. It was first published in 2009 and revised in 2018. EPA Method 537.1 can measure 18 PFAS compounds in drinking water using solid phase extraction (SPE) and LC-MS/MS.

EPA Method 1633 differs from EPA Method 537.1 in several ways, such as:

  • EPA Method 1633 can measure 40 PFAS compounds, including nine compound classes and linear and branched isomers, while EPA Method 537.1 can measure only 18 PFAS compounds.
  • EPA Method 1633 can test for PFAS in various environmental matrices, such as water, soil, biosolids, and tissue, while EPA Method 537.1 can only test for PFAS in drinking water.
  • EPA Method 1633 uses different sample collection, preservation, extraction, cleanup, and quality control procedures depending on the matrix type, while EPA Method 537.1 uses the same procedure for all drinking water samples.

How Can EPA Method 1633 Help You with Your PFAS Testing Needs?

Using EPA Method 1633 for PFAS testing can offer you several benefits and advantages, such as:

  • You can test for a wider range of PFAS compounds in various environmental matrices using a single method.
  • You can obtain more accurate and reliable results using a sensitive and selective analytical technique.
  • You can follow standardized and comprehensive procedures that ensure the quality and consistency of your data.
  • You can comply with the current and future regulatory requirements and guidelines for PFAS testing.

Contact BSK Associates Today!

If you want to learn more about EPA Method 1633 and how it can help you with your PFAS testing needs, please contact us today. BSK specializes in PFAS analysis, and we can help you with your PFAS testing needs. We have the expertise, equipment, and experience to perform your PFAS testing needs. We can provide you with accurate, timely, and cost-effective results that meet your requirements and expectations.

 

BSK strongly believes in giving back to the communities in which we work. We make sure our community involvement goals have a positive impact on the communities which we serve; because, in the end it’s all about community.

Looking to learn more about BSK Associates Geoprofessional and Analytical Services, check our website and connect with us to see how we can help you.  www.bskassociates.com/ 

https://www.bskassociates.com/wp-content/uploads/2023/09/Method-1633-PFAS-Testing.jpg 5376 8064 bskassociates /wp-content/uploads/2026/07/bsk-logo-60.png bskassociates2025-09-03 09:10:242025-09-03 09:10:24EPA Method 1633 and How It Can Help You with Your PFAS Testing Needs.
  • Understanding Your Insurance CoverageJuly 6, 2026 - 6:00 am
  • RCRA Appendix IX Groundwater Monitoring
    RCRA Appendix IX Groundwater Monitoring: BSK Expands ServicesJune 19, 2026 - 8:26 am
  • Hexavalent Chromium Testing in California
    Hexavalent Chromium Testing in CaliforniaMay 20, 2026 - 11:00 am
  • Q1 Corporate Sponsorship Supports San Ramon FC 
    Building Community Through Purpose: BSK Associates’ Q1 Corporate Sponsorship Supports San Ramon FCMay 15, 2026 - 7:40 am
  • Preliminary Environmental Assessment for School Sites
    Preliminary Environmental Assessment For School SitesMay 6, 2026 - 8:47 am
  • Red Flags In Contract Language
    Red Flags in Contract LanguageApril 22, 2026 - 9:37 am
  • communication in geoprofessional practice
    Communication in the Geoprofessional PracticeMarch 26, 2026 - 2:50 pm
  • Phase I Environmental Site AssessmentMarch 3, 2026 - 3:18 pm
  • BSK Associates Announces Q4 2025 Corporate Sponsorship Winner and Selected Community OrganizationFebruary 19, 2026 - 3:06 pm
  • Taming the Time Management BeastJanuary 6, 2026 - 8:44 am
  • Unlock the Power of Biomass with Fast, Reliable Analytical TestingNovember 10, 2025 - 5:00 am
  • Renea Rangell to Deliver Keynote at ACIL Annual Meeting: Elevating Lab Leadership in 2025
    Renea Rangell to Deliver Keynote at ACIL Annual Meeting: Elevating Lab Leadership in 2025October 31, 2025 - 9:16 am
  • BSK Associates Announces 3rd Quarter Sponsorship of Kevvy’s Vision Project, Honoring Legacy of Community ServiceOctober 27, 2025 - 9:21 am
  • Why Testing Residential Well Water Is Crucial When Buying a HomeOctober 13, 2025 - 5:00 am
  • Building Your Geoprofessional Network: From Conference Small Talk to Lasting Business RelationshipsOctober 7, 2025 - 4:30 am
BSK Associates

(800) 669-3201

Corporate Headquarters

691 N. Laverne Ave. STE 101
Fresno, CA 93727
Local: (559) 497-2880

Hours of Operation

Monday – Friday 8 AM - 5 PM
Office hours vary by location

Subscribe to BSK PULSE

Thank you for signing up.
Please correct the marked field(s) below.
1,true,6,Contact Email,2 1,false,1,First Name,2 1,false,1,Last Name,2
Close
© 2026 Copyright BSK Associates | Accessibility |  NFY Interactive
  • Link to Facebook Link to Facebook Link to Facebook
  • Link to Instagram Link to Instagram Link to Instagram
  • Link to LinkedIn Link to LinkedIn Link to LinkedIn
  • Link to Youtube Link to Youtube Link to Youtube
Link to: BSK Support for Wildfire Devastation Link to: BSK Support for Wildfire Devastation BSK Support for Wildfire Devastation Link to: Wastewater Discharge Testing in Food Manufacturing: Why Choosing the Right Lab Is Essential Link to: Wastewater Discharge Testing in Food Manufacturing: Why Choosing the Right Lab Is Essential wastewater testingWastewater Discharge Testing in Food Manufacturing: Why Choosing the Right Lab...
Scroll to top Scroll to top Scroll to top