April 10, 2024
Link to EPA regulation page:
https://www.epa.gov/sdwa/and-polyfluoroalkyl-substances-pfas
Category: Resources
Parent category for reference posts applicable to several categories
Washington will move to tougher federal limits on ‘forever chemicals’ in tap water
By: Bill Lucia
Washington State Standard
April 10, 2024
The U.S. Environmental Protection Agency finalized the rules Wednesday. The state established a program targeting the hazardous chemicals in drinking water in 2021.
Washington regulators will adopt a drinking water standard the federal government issued Wednesday that’s meant to limit people’s exposure to a class of harmful chemicals used for decades in firefighting foam and manufacturing.
Continue reading “Washington will move to tougher federal limits on ‘forever chemicals’ in tap water”Biden-Harris Administration Finalizes First-Ever National Drinking Water Standard to Protect 100M People from PFAS Pollution
EPA
April 10, 2024
As part of the Administration’s commitment to combating PFAS pollution, EPA announces $1B investment through President Biden’s Investing in America agenda to address PFAS in drinking water
WASHINGTON – Today, April 10, the Biden-Harris Administration issued the first-ever national, legally enforceable drinking water standard to protect communities from exposure to harmful per-and polyfluoroalkyl substances (PFAS), also known as ‘forever chemicals.’
Continue reading “Biden-Harris Administration Finalizes First-Ever National Drinking Water Standard to Protect 100M People from PFAS Pollution”WA’s public water systems would need $1.6 billion for initial PFAS cleanup, state officials say
By Isabella Breda and Manuel Villa
April 10, 2024
The Environmental Protection Agency announced the first national drinking water standard for six so-called forever chemicals Wednesday, a change that could cost Washington public water utilities an estimated $1.6 billion, according to state officials.
FINAL APPENDIX: Human Health Toxicity Assessment for Perfluorooctane Sulfonic Acid (PFOS) and Related Salts
U.S. Environmental Protection Agency
EPA Document No. 815R24009
April, 2024
Per- and Polyfluoroalkyl Substances (PFAS)
Occurrence and Contaminant Background Support Document for the Final PFAS National Primary Drinking Water Regulation
U.S. Environmental Protection Agency
EPA 815-R-24-013
April, 2024
Executive Summary
On March 3, 2021 (86 FR 12272; USEPA, 2021a), the United States Environmental Protection Agency (EPA) announced its decision to regulate perfluorooctane sulfonic acid (PFOS) and perfluorooctanoic acid (PFOA) under the Safe Drinking Water Act (SDWA).
Continue reading “Per- and Polyfluoroalkyl Substances (PFAS)”Maximum Contaminant Level Goals for Perfluorooctanoic Acid (PFOA) and Perfluorooctane Sulfonic Acid (PFOS) in Drinking Water
U.S. Environmental Protection Agency
EPA-815-R-24-010
April, 2024
Background and Purpose
Section 1412(a)(3) of the Safe Drinking Water Act (SDWA) requires the Administrator of the U.S. Environmental Protection Agency (EPA) to finalize a Maximum Contaminant Level Goal (MCLG) simultaneously with the publication of a National Primary Drinking Water Regulation (NPDWR). The MCLG is set, as defined in Section 1412(b)(4)(A), at “the level at which no known or anticipated adverse effects on the health of persons occur and which allows an adequate margin of safety.” Consistent with SDWA 1412(b)(3)(C)(i)(V), in developing the MCLG, the EPA considers “the effects of the contaminant on the general population and on groups within the general population such as infants, children, pregnant women, the elderly, individuals with a history of serious illness, or other subpopulations that are identified as likely to be at greater risk of adverse health effects due to exposure to contaminants in drinking water than the general population.” Other factors considered in determining MCLGs for drinking water contaminants include health effects data, toxicity values, cancer classifications, and potential sources of exposure other than drinking water. MCLGs are not regulatory levels and are not enforceable.
Continue reading “Maximum Contaminant Level Goals for Perfluorooctanoic Acid (PFOA) and Perfluorooctane Sulfonic Acid (PFOS) in Drinking Water”Human Health Toxicity Assessment for Perfluorooctanic Acid (PFOA) and Related Salts
U.S. Environmental Protection Agency
EPA Document No. 815R24008
April, 2024
Overview of Background Information and Systematic Review Protocol
The methods used to conduct the systematic review for PFOA are consistent with the methods described in the draft and final EPA ORD Staff Handbook for Developing IRIS Assessments (U.S. EPA, 2022b, 2020a) (hereafter referred to as the Integrated Risk Information System (IRIS) Handbook) and a companion publication (Thayer et al., 2022).
Continue reading “Human Health Toxicity Assessment for Perfluorooctanic Acid (PFOA) and Related Salts”Revised Final Results of Supplemental Stormwater Monitoring for PFAS
Madrona K-8 School Replacement Project, Edmonds, Washington
Shannon & Wilson
February 13, 2024
This letter report summarizes the procedures and results of supplemental sampling of stormwater for analyses of per- and polyfluoroalkyl substances (PFAS) at tge Edmonds School District No. 15 (ESD) Madrona K-8 School Replacement Project (Project). The purpose of this voluntary sampling event was to objectively evaluate for the presence of PFAS in stormwater following stormwater sampling conducted by Olympic View Water abd Sewer District (OVWSD) on October 22, 2022. Because the procedures used to collect stormwater samples by OVWSD were not provided, the usability and validity of their data are unknown. A map of the project location is provided as Figure 1. This letter is revised from the final version dated February 8, 2024, to correct the pagination.
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Tire anti-degradant (6PPD) and 6PPD-quinone (6PPDQ)
Department of Ecology
6PPD is a chemical that prevents automotive tires from degrading (i.e., breaking down) and helps them last longer. When 6PPD is exposed to air, it reacts with ozone to create 6PPD-quinone (also known as 6PPDQ). 6PPDQ is lethal to coho salmon and can contaminate water systems.
We work with Tribal and local governments, state and federal agencies, academic institutions, and industrial organizations to reduce the pollution and sources of 6PPDQ released from tires in Washington.
Article continues…
United States Analysis of the Regulatory Inception of Per- and Polyfluoroalkyl Substances(PFAS) in Drinking Water Policy among States and Review of Regulatory Efforts made by the Federal Environmental Protection Agency
By Amy Hagarty, Bachelor of Science
A Thesis Submitted in Partial
Fulfillment of the Requirements
for the Degree of
Master of Science
in the field of Environmental Science
Graduate School
Southern Illinois University Edwardsville
December, 2023
Analytical Report – Prepared for Olympic View Water & Sewer District
Guidance for Investigating and Remediating PFAS Contamination in Washington State
Department of Ecology
June, 2023
A brief history of PFAS
Per- and polyfluoroalkyl substances are collectively known as PFAS. The group comprises thousands of unique synthetic organic chemicals that are extremely stable and persistent. Commercially manufactured since the 1940s, PFAS compounds have been used in manufacturing common consumer products, such as carpeting, clothing, furniture, outdoor equipment, and food packaging. Many industries have also used PFAS, including aerospace, automotive, aviation, electronics, and medical industries. One major source of PFAS contamination is Aqueous Film Forming Foam (AFFF), which is used for fire training and extinguishing petroleum fires and other flammable liquids.
Continue reading “Guidance for Investigating and Remediating PFAS Contamination in Washington State”How PFAS impact stormwater
Stormwater Solutions
David C. Richardson
April 14, 2023
A new substance found in residue from an experiment on refrigerants caught the attention of Dupont chemists nearly 100 years ago. They thought it had some interesting properties. It was resistant to water, grease, heat and decay. Soon it would be used to keep pots clean, to waterproof convertible car tops and to put out fires.
Taking on such household names as Teflon and Scotchgard, and deployed for varied uses as firefighting, and the manufacture of extruded plastics, it would eventually be applied to the glamorous world of cosmetics, and, in such workaday products as grease resistant fast-food wrappers and microwave popcorn bags.
Continue reading “How PFAS impact stormwater”Watershed Protection Plan – Olympic View Water & Sewer District
PACE Engineers, Inc.
Original 2018
Revised April 2023
Executive Summary
The Olympic View Water & Sewer District (District) is located in southwestern Snohomish County in the State of Washington and encompasses portions of the City of Edmonds, the Town of Woodway and unincorporated Snohomish County, including the communities of Esperance, Westgate, and Firdale Village.
Deer Creek, Willow Creek, Chase Lake and Chase Lake Pond, located within the District, are considered critical habitat for aquatic life and recreational use. Currently, Deer Creek is the District’s surface water source. The 228th Street SW Well Field is the District’s new aquifer water source and consists of two wells; one well was dug in 2014, and a second well was dug in 2016. Both wells are scheduled to begin treatment and use in 2019.
Continue reading “Watershed Protection Plan – Olympic View Water & Sewer District”